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Icard P, Alifano M, Simula L. Citrate oscillations during cell cycle are a targetable vulnerability in cancer cells. Biochim Biophys Acta Rev Cancer 2025; 1880:189313. [PMID: 40216092 DOI: 10.1016/j.bbcan.2025.189313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2024] [Revised: 04/01/2025] [Accepted: 04/01/2025] [Indexed: 04/20/2025]
Abstract
Cell cycle progression is timely interconnected with oscillations in cellular metabolism. Here, we first describe how these metabolic oscillations allow cycling cells to meet the bioenergetic needs specifically for each phase of the cell cycle. In parallel, we highlight how the cytosolic level of citrate is dynamically regulated during these different phases, being low in G1 phase, increasing in S phase, peaking in G2/M, and decreasing in mitosis. Of note, in cancer cells, a dysregulation of such citrate oscillation can support cell cycle progression by promoting a deregulated Warburg effect (aerobic glycolysis), activating oncogenic signaling pathways (such as PI3K/AKT), and promoting acetyl-CoA production via alternative routes, such as overconsumption of acetate. Then, we review how administration of sodium citrate (at high doses) arrests the cell cycle in G0/G1 or G2/M, inhibits glycolysis and PI3K/AKT, induces apoptosis, and significantly reduces tumor growth in various in vivo models. Last, we reason on the possibility to implement citrate administration to reinforce the effectiveness of cell cycle inhibitors to better cure cancer.
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Affiliation(s)
- Philippe Icard
- Université de Normandie, UNICAEN, Inserm U1086 Interdisciplinary Research Unit for Cancer Prevention and Treatment, Caen, France; Thoracic Surgery Department, Cochin Hospital, APHP-Centre, Université Paris-Descartes, Paris, France.
| | - Marco Alifano
- Thoracic Surgery Department, Cochin Hospital, APHP-Centre, Université Paris-Descartes, Paris, France; Inserm U1138, Integrative Cancer Immunology, University of Paris, 75006 Paris, France
| | - Luca Simula
- Institut Cochin, Inserm U1016, CNRS UMR8104, Université Paris-Cité, Paris 75014, France
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2
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Saberiyan M, Gholami S, Ejlalidiz M, Rezaeian Manshadi M, Noorabadi P, Hamblin MR. The dual role of chaperone-mediated autophagy in the response and resistance to cancer immunotherapy. Crit Rev Oncol Hematol 2025; 210:104700. [PMID: 40086769 DOI: 10.1016/j.critrevonc.2025.104700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2025] [Revised: 03/07/2025] [Accepted: 03/10/2025] [Indexed: 03/16/2025] Open
Abstract
Cancer immunotherapy has become a revolutionary strategy in oncology, utilizing the host immune system to fight malignancies. Notwithstanding major progress, obstacles such as immune evasion by tumors and the development of resistance still remain. This manuscript examines the function of chaperone-mediated autophagy (CMA) in cancer biology, focusing on its effects on tumor immunotherapy response and resistance. CMA is a selective degradation mechanism for cytosolic proteins, which is crucial for sustaining cellular homeostasis and regulating immune responses. By degrading specific proteins, CMA can either facilitate tumor progression in stressful conditions, or promote tumor suppression by removing oncogenic factors. This double-edged sword highlights the complexity of CMA in cancer progression and its possible effect on treatment results. Here we clarify the molecular mechanisms by which CMA can regulate the immune response and its possible role as a therapeutic target for improving the effectiveness of cancer immunotherapy.
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Affiliation(s)
- Mohammadreza Saberiyan
- Student Research Committee, Hormozgan University of Medical Sciences, Bandar Abbas, Iran; Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Sarah Gholami
- Young Researchers and Ellie Club, Babol Branch. Islamic Azad University, Babol, Iran
| | - Mahsa Ejlalidiz
- Medical Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadsadegh Rezaeian Manshadi
- Clinical Research Development Center, Imam Hossein Educational Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parisa Noorabadi
- Department of Internal Medicine, School of Medicine, Urmia University of Medical sciences, Urmia, Iran.
| | - Michael R Hamblin
- Laser Research Centre, University of Johannesburg, Doornfontein, South Africa.
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3
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Xu S, Liu K, Qian S, Wu J, Hu J, Zhou D, Zheng T. Mechanism of Tau protein incorporation into exosomes via cooperative recognition of KFERQ-like motifs by LAMP2A and HSP70. Neurochem Int 2025; 186:105976. [PMID: 40187566 DOI: 10.1016/j.neuint.2025.105976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2025] [Revised: 03/27/2025] [Accepted: 04/02/2025] [Indexed: 04/07/2025]
Abstract
Aggregates of the tau protein is a well-known hallmark of Alzheimer's disease (AD) and other Tauopathies, such as Frontotemporal dementia (FTD). Tau can be propagated between nerve cells or brain areas, similar as 'seed'. As a member of small extracellular vesicles, exosomes may act as one of the most important 'seeding machines', disseminating toxic tau and phosphorylated tau proteins between cells and thereby amplifying their neurotoxic effects. Therefore, exploring the underlying mechanisms of Tau loading into exosomes is of great importance. In this study, human P301L tau transfections were established in SH-SY5Y cells (SY5Y-EGFP-TauP301L cells). The content of membrane protein LAMP2A and HSP70 proteins was significantly increased in the SY5Y-EGFP-Tau P301L cells compared to control group. Tau containing KFERQ-like motifs pentapeptide interact with LAMP2A and HSP70, forming a multi-protein complex, which can be loaded into a subpopulation of exosomes. Moreover, knockout of LAMP2A significantly reduced the content of Tau protein in exosomes obtained from SY5Y-EGFP-Tau P301L cells. Thus, exosome-mediated secretion of tau protein may depend on the formation of multi-protein (KFERQ-like motif pentapeptide in tau,LAMP2A and HSP70) complex. These findings revealed the presence of a novel mechanism by which release of tau through exosome secretion pathway and that LAMP2A may play an important role in the regulation of exosome-mediated secretion of tau, which may become a potential therapeutic target for AD or other Tauopathies.
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Affiliation(s)
- Shan Xu
- Department of Neurology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Kangyan Liu
- Department of Neurology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Shiyan Qian
- Department of Neurology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Jingying Wu
- Department of Neurology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Jialing Hu
- Department of Neurology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Dongming Zhou
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
| | - Tingting Zheng
- Department of Neurology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China.
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Hossain AJ, Hamza A, Islam R, Dogsom O, Park JB. Function of eEF-1γ in the nucleus in response to insulin in hepatocellular carcinoma cells. Commun Biol 2025; 8:826. [PMID: 40442278 PMCID: PMC12122818 DOI: 10.1038/s42003-025-08247-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2024] [Accepted: 05/18/2025] [Indexed: 06/02/2025] Open
Abstract
Insulin promotes HepG2 cell proliferation by inducing phosphorylation of the pyruvate dehydrogenase E1α (PDHA1) subunit at Ser293, a mechanism distinct from normal liver tissue. This study investigates how phosphorylated PDHA1 drives hepatocellular carcinoma cell proliferation. We identified eukaryotic elongation factor-1γ (eEF-1γ) as a key binding protein interacting with p-PDHA1 in response to insulin, facilitating their nuclear translocation. Silencing eEF-1γ (si-eEF-1γ) significantly reduced p-PDHA1 and PKM2 levels, highlighting eEF-1γ's role in stabilizing these proteins. Additionally, eEF-1γ interacts with ATP-citrate lyase (ACL) and p300 acetyltransferase, and its knockdown decreased histone acetylation at H3K9/14, H3K18, and H3K27, along with RBP4 expression. Chromatin immunoprecipitation PCR (ChIP-PCR) confirmed eEF-1γ association with RBP4 promoter. Functionally, si-eEF-1γ reduced cell proliferation and deceased c-Myc and cyclin D1 protein levels. It also suppressed migration, and altered epithelial-mesenchymal transition (EMT) markers, increasing E-cadherin while reducing ZEB1, snail1, vimentin, and N-cadherin levels. Similarly, RBP4 knockdown with siRNA diminished cell proliferation and migration. In vivo, eEF-1γ knockdown in 4T1 xenografts using siRNA led to reduced tumor mass. These findings highlight eEF-1γ as a crucial driver of insulin-induced tumor progression and suggest its potential as a therapeutic target in hepatocellular carcinoma.
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Affiliation(s)
- Abu Jubayer Hossain
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea
| | - Amir Hamza
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea
- Institute of Cell Differentiation and Aging, Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea
| | - Rokibul Islam
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea
- Institute of Cell Differentiation and Aging, Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Science, Islamic University, Kushtia, Bangladesh
| | - Oyungerel Dogsom
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea
- Institute of Cell Differentiation and Aging, Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea
- Department of Biology, School of Bio-Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Jae-Bong Park
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea.
- Institute of Cell Differentiation and Aging, Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea.
- ELMED Co., Hallym University College of Medicine, Chuncheon, Kangwon-do, Republic of Korea.
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Xu M, Wang W, Lu S, Xiong M, Zhao T, Yu Y, Song C, Yang J, Zhang N, Cao L, Sun G, Chen S, Wang P. The advances in acetylation modification in senescence and aging-related diseases. Front Physiol 2025; 16:1553646. [PMID: 40421455 PMCID: PMC12104306 DOI: 10.3389/fphys.2025.1553646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2024] [Accepted: 04/28/2025] [Indexed: 05/28/2025] Open
Abstract
Aging is a process in which organisms or cells undergo a decline in their functions. Epigenetic modification changes have been recognized as a senescence hallmark in both natural aging and stimulation-induced senescence. An acetylation modification is a dynamic process, which plays a crucial role in the senescence process through DNA stability, metabolism, and signaling pathways. We summarized the role and regulatory pathways of acetylation modifications in senescence. Various cell fate-determining proteins regulate multiple cellular processes through acetylation modifications. These processes interact and coordinate with each other, forming an integrated regulatory network framework that collectively drives cellular senescence via multiple systemic mechanisms. Based on these findings, we proposed the "acetylation-network regulation-cellular senescence" model, to elaborate how acetylation contributes to senescence. We believe this insight could provide new directions and intervention strategies for senescence and aging-related diseases.
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Affiliation(s)
- Maiqi Xu
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Wenbin Wang
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Saien Lu
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Mengyao Xiong
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Tong Zhao
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yao Yu
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Chunyu Song
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Jinjing Yang
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Naijin Zhang
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Liu Cao
- Institute of Health Sciences, China Medical University, Shenyang, Liaoning Province, China
| | - Guozhe Sun
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Sichong Chen
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, China
| | - Pengbo Wang
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
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Dong RF, Qin CJ, Yin Y, Han LL, Xiao CM, Wang KD, Wei RY, Xia YZ, Kong LY. Discovery of a potent inhibitor of chaperone-mediated autophagy that targets the HSC70-LAMP2A interaction in non-small cell lung cancer cells. Br J Pharmacol 2025; 182:2287-2309. [PMID: 37311689 DOI: 10.1111/bph.16165] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/26/2023] [Accepted: 05/27/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND AND PURPOSE Chaperone-mediated autophagy (CMA) is a selective type of autophagy targeting protein degradation and maintains high activity in many malignancies. Inhibition of the combination of HSC70 and LAMP2A can potently block CMA. At present, knockdown of LAMP2A remains the most specific method for inhibiting CMA and chemical inhibitors against CMA have not yet been discovered. EXPERIMENTAL APPROACH Levels of CMA in non-small cell lung cancer (NSCLC) tissue samples were confirmed by tyramide signal amplification dual immunofluorescence assay. High-content screening was performed based on CMA activity, to identify potential inhibitors of CMA. Inhibitor targets were determined by drug affinity responsive target stability-mass spectrum and confirmed by protein mass spectrometry. CMA was inhibited and activated to elucidate the molecular mechanism of the CMA inhibitor. KEY RESULTS Suppression of interactions between HSC70 and LAMP2A blocked CMA in NSCLC, restraining tumour growth. Polyphyllin D (PPD) was identified as a targeted CMA small-molecule inhibitor through disrupting HSC70-LAMP2A interactions. The binding sites for PPD were E129 and T278 at the nucleotide-binding domain of HSC70 and C-terminal of LAMP2A, respectively. PPD accelerated unfolded protein generation to induce reactive oxygen species (ROS) accumulation by inhibiting HSC70-LAMP2A-eIF2α signalling axis. Also, PPD prevented regulatory compensation of macroautophagy induced by CMA inhibition via blocking the STX17-SNAP29-VAMP8 signalling axis. CONCLUSIONS AND IMPLICATIONS PPD is a targeted CMA inhibitor that blocked both HSC70-LAMP2A interactions and LAMP2A homo-multimerization. CMA suppression without increasing the regulatory compensation from macroautophagy is a good strategy for NSCLC therapy. LINKED ARTICLES This article is part of a themed issue Natural Products and Cancer: From Drug Discovery to Prevention and Therapy. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v182.10/issuetoc.
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Affiliation(s)
- Rui-Fang Dong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Cheng-Jiao Qin
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yong Yin
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Liang-Liang Han
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Cheng-Mei Xiao
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Kai-Di Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Rong-Yuan Wei
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yuan-Zheng Xia
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
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Xu R, Huang Y, Xie W, Luo D, Mei J, Liu X, Liu F, Luo F. HLA-F regulates the proliferation of trophoblast via PKM2-dependent glycolysis in the pathogenesis of preeclampsia. Mol Med 2025; 31:142. [PMID: 40251569 PMCID: PMC12008859 DOI: 10.1186/s10020-025-01201-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2024] [Accepted: 04/07/2025] [Indexed: 04/20/2025] Open
Abstract
BACKGROUND The regulatory molecule Human Leukocyte Antigen F (HLA-F) has been implicated in trophoblast proliferation during pregnancy, and reduced levels of this antigen have been identified in trophoblast cells of patients with preeclampsia. This study aimed to analyze the effect and mechanism of HLA-F on the proliferation of trophoblast and the underlying mechanism of reduced HLA-F involved in preeclampsia. METHODS q-PCR, Western blot (WB), and Immunohistochemistry (IHC) were used to detect the expression of HLA-F and Pyruvate Kinase Muscle isoform 2 (PKM2) in placenta tissues. Jar cells were transfected with overexpression lentivirus, specific siRNA, and shRNA to regulate corresponding genes. Immunofluorescence was used to analyze the expression and distribution of HLA-F and PKM2. Extracellular and intracellular lactate, pyruvate, and enzymatic activity of PKM2 were measured using the corresponding assay kits. Cell proliferation was measured by CCK8, MTT, colony formation assay, and Mini patient-derived xenograft (Mini-PDX). Chromatin Immunoprecipitation and deep sequencing (ChIP-seq) and 4-dimensional label-free quantitative proteomics (4D-LFQP-LA) were used to analyze the HLA-F-binding DNA sequences and the differential lactylation proteins in HLA-F-overexpression Jar and its control. RESULTS The expression of HLA-F is reduced in extravillous trophoblast and villous cytotrophoblast from patients with preeclampsia. Over-expression of HLA-F promoted proliferation while under-expression inhibited it. Further experiments demonstrated that over-expression of HLA-F promoted expression of the PKM2 protein and its enzymatic activity, resulting in enhanced glycolysis in Jar cells. Specifically, we determined that HLA-F regulated the expression of PKM2 by binding the promoter of PKM, and promoted PKM2 enzyme activity by down-regulating the lactylation of residue K305. Moreover, silencing PKM2 with siRNA reduced HLA-F-mediated glycolysis and proliferation in HLA-F-overexpressing Jar cells. Finally, we corroborated these results using a MiniPDX model, with which we confirmed that the PKM2 agonist TEPP-46 promoted the proliferation of ShHLA-F Jar cells. CONCLUSIONS The reduced expression of HLA-F in placental trophoblast cells resulted in the downregulation of both PKM2 transcription and protein expression. Concurrently, the relative upregulation of lactylation at PKM2 K305 contributed to a decline in enzyme activity, further exacerbating glycolysis dysfunction. Collectively, these alterations led to a suppression of trophoblast proliferation capacity and involvement in the pathogenesis of preeclampsia.
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Affiliation(s)
- Ruiling Xu
- Department of Obstetrics and Gynecology, Sichuan Provincial People's Hospital, Sichuan Academy of Medical Sciences, University of Electronic Science and Technology, Chengdu, China
| | - Yu Huang
- Department of Obstetrics and Gynecology, Sichuan Provincial People's Hospital, Sichuan Academy of Medical Sciences, University of Electronic Science and Technology, Chengdu, China
| | - Wenchi Xie
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Dan Luo
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Jie Mei
- Department of Obstetrics and Gynecology, Sichuan Provincial People's Hospital, Sichuan Academy of Medical Sciences, University of Electronic Science and Technology, Chengdu, China
| | - Xinghui Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China.
| | - Fulin Liu
- Sichuan Provincial Key Laboratory for Human Disease Gene Study, Center for Medical Genetics, Department of Laboratory Medicine, Sichuan Provincial People's Hospital, Sichuan Academy of Medical Sciences, University of Electronic Science and Technology, Chengdu, China.
| | - Fangyuan Luo
- Department of Obstetrics and Gynecology, Sichuan Provincial People's Hospital, Sichuan Academy of Medical Sciences, University of Electronic Science and Technology, Chengdu, China.
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China.
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Cao SH, Ma RY, Cao T, Hu T, Yang S, Ren ZY, Niu JL, Zheng MQ, Han M, Dong LH. PKM2 crotonylation reprograms glycolysis in VSMCs, contributing to phenotypic switching. Oncogene 2025:10.1038/s41388-025-03353-9. [PMID: 40181154 DOI: 10.1038/s41388-025-03353-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2024] [Revised: 02/19/2025] [Accepted: 03/13/2025] [Indexed: 04/05/2025]
Abstract
Post-translational modifications (PTMs) of pyruvate kinase M2 (PKM2) play a vital role in regulating its activity and function. Recently, we found PKM2 can undergo crotonylation in vascular smooth muscle cell (VSMC) phenotypic switching. However, the role of PKM2 crotonylation remains unknown. Here, we verify a crucial role of PKM2 crotonylation in VSMC metabolic reprogramming. In PDGF-BB-induced synthetic VSMCs, PKM2 crotonylation was upregulated and promotes its nuclear translocation, thereby facilitating the expression of Glut1 and Ldha. Furthermore, crotonylation facilitated the dimeric formation of PKM2. Then we identified the highly conserved crotonylation site at K305 across different species. The crotonylation of PKM2 was compromised by PKM2 K305 mutation, resulting in the suppression of PKM2 dimeric configuration and nuclear relocation, and ultimately reducing glycolysis rate. Furthermore, PKM2 K305 crotonylation was necessary for VSMC phenotypic switching in vitro and intimal hyperplasia in vivo via infection of PKM2 recombinant adenovirus. In summary, PKM2 K305 crotonylation facilitates VSMC aerobic glycolysis by enhancing PKM2 dimeric form.
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Affiliation(s)
- Shan-Hu Cao
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Key Laboratory of Vascular Biology of Hebei Province, Key Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
- Department of Cardiology, Hebei Key Laboratory of Heart and Metabolism, The First Hospital of Hebei Medical University, Shijiazhuang, 050031, Hebei, China
- Hebei Medical University Clinical Medicine Postdoctoral Mobile Station, Shijiazhuang, China
| | - Ru-Yuan Ma
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Key Laboratory of Vascular Biology of Hebei Province, Key Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Tong Cao
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Key Laboratory of Vascular Biology of Hebei Province, Key Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Tao Hu
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Key Laboratory of Vascular Biology of Hebei Province, Key Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Shu Yang
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Key Laboratory of Vascular Biology of Hebei Province, Key Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Zhi-Yan Ren
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Key Laboratory of Vascular Biology of Hebei Province, Key Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Jiang-Ling Niu
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Key Laboratory of Vascular Biology of Hebei Province, Key Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Ming-Qi Zheng
- Department of Cardiology, Hebei Key Laboratory of Heart and Metabolism, The First Hospital of Hebei Medical University, Shijiazhuang, 050031, Hebei, China.
| | - Mei Han
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Key Laboratory of Vascular Biology of Hebei Province, Key Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, 050017, Hebei, China.
| | - Li-Hua Dong
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Key Laboratory of Vascular Biology of Hebei Province, Key Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, 050017, Hebei, China.
- Hebei Medical University, Shijiazhuang, China.
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Upadhyay S, Bhardwaj M, Kumar SP, Khan S, Kumar A, Hassan MI. Impact of Cancer-Associated PKM2 Mutations on Enzyme Activity and Allosteric Regulation: Structural and Functional Insights into Metabolic Reprogramming. Biochemistry 2025; 64:1463-1475. [PMID: 40080100 DOI: 10.1021/acs.biochem.5c00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2025]
Abstract
Mammalian pyruvate kinase M2 (PKM2) is a key regulator of glycolysis and is highly expressed in proliferative tissues including tumors. Mutations in PKM2 have been identified in various cancers, but their effects on enzyme activity and regulation are not fully understood. This study investigates the structural and functional effects of cancer-associated PKM2 mutations on enzyme kinetics, allosteric regulation, and oligomerization. Using computational modeling, X-ray crystallography, and biochemical assays, we demonstrated how these mutations impact PKM2 activity, substrate binding, and allosteric activation via fructose-1,6-bisphosphate (FBP), contributing to altered enzyme function. In this study, we characterized four cancer-associated PKM2 mutations (P403A, C474S, R516C, and L144P) using computational, structural, and biochemical approaches. Computational modeling revealed disruptions in allosteric signaling pathways, particularly affecting the communication between regulatory sites and the active site. X-ray crystallography demonstrated local conformational changes in the hinge and FBP-binding regions, leading to a shift from the active tetrameric state to a less active dimeric state, particularly in the C474S and R516C mutants. The mutants exhibited reduced maximal velocity, reduced substrate affinity, and altered activation by the allosteric activator fructose-1,6-bisphosphate (FBP). Under alkaline pH conditions, mimicking the tumor microenvironment, these mutations further destabilized the PKM2 oligomeric state, favoring the formation of lower-order species. Our findings suggest that PKM2 is highly sensitive to mutations, and these alterations may contribute to metabolic reprogramming in cancer cells by impairing its enzymatic regulation.
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Affiliation(s)
- Saurabh Upadhyay
- Kusuma School of Biological Sciences, Indian Institute of Technology, New Delhi 110016, India
| | - Mohit Bhardwaj
- Kusuma School of Biological Sciences, Indian Institute of Technology, New Delhi 110016, India
| | - Sivakumar Prasanth Kumar
- Department of Botany, Bioinformatics and Climate Change Impacts Management, School of Sciences, Gujarat University, Ahmedabad 380009, India
| | - Shumayila Khan
- Kusuma School of Biological Sciences, Indian Institute of Technology, New Delhi 110016, India
- International Health Division, Indian Council of Medical Research, Ansari Nagar, New Delhi 110029, India
| | - Ashwani Kumar
- Macromolecular Crystallography Section, Beamline Development & Application Section, Bhabha Atomic Research Center, Trombay, Mumbai 400085, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
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10
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Wu J, Xu W, Su Y, Wang GH, Ma JJ. Targeting chaperone-mediated autophagy in neurodegenerative diseases: mechanisms and therapeutic potential. Acta Pharmacol Sin 2025; 46:816-828. [PMID: 39548290 PMCID: PMC11950187 DOI: 10.1038/s41401-024-01416-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Accepted: 10/21/2024] [Indexed: 11/17/2024]
Abstract
The pathological hallmarks of various neurodegenerative diseases including Parkinson's disease and Alzheimer's disease prominently feature the accumulation of misfolded proteins and neuroinflammation. Chaperone-mediated autophagy (CMA) has emerged as a distinct autophagic process that coordinates the lysosomal degradation of specific proteins bearing the pentapeptide motif Lys-Phe-Glu-Arg-Gln (KFERQ), a recognition target for the cytosolic chaperone HSC70. Beyond its role in protein quality control, recent research underscores the intimate interplay between CMA and immune regulation in neurodegeneration. In this review, we illuminate the molecular mechanisms and regulatory pathways governing CMA. We further discuss the potential roles of CMA in maintaining neuronal proteostasis and modulating neuroinflammation mediated by glial cells. Finally, we summarize the recent advancements in CMA modulators, emphasizing the significance of activating CMA for the therapeutic intervention in neurodegenerative diseases.
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Affiliation(s)
- Jin Wu
- Department of Pharmacy, The Fourth Affiliated Hospital of Soochow University, Suzhou Dushu Lake Hospital, Medical Center of Soochow University, Suzhou, 215123, China.
| | - Wan Xu
- Department of Pharmacy, The Fourth Affiliated Hospital of Soochow University, Suzhou Dushu Lake Hospital, Medical Center of Soochow University, Suzhou, 215123, China
| | - Ying Su
- Department of Pharmacy, The Fourth Affiliated Hospital of Soochow University, Suzhou Dushu Lake Hospital, Medical Center of Soochow University, Suzhou, 215123, China
| | - Guang-Hui Wang
- Laboratory of Molecular Neuropathology, Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.
| | - Jing-Jing Ma
- Department of Pharmacy, The Fourth Affiliated Hospital of Soochow University, Suzhou Dushu Lake Hospital, Medical Center of Soochow University, Suzhou, 215123, China.
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11
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Zhao Q, Cai D, Xu H, Gao Y, Zhang R, Zhou X, Chen X, Chen S, Wu J, Peng W, Yuan S, Li D, Li G, Nan A. o8G-modified circPLCE1 inhibits lung cancer progression via chaperone-mediated autophagy. Mol Cancer 2025; 24:82. [PMID: 40098195 PMCID: PMC11912650 DOI: 10.1186/s12943-025-02283-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2024] [Accepted: 02/25/2025] [Indexed: 03/19/2025] Open
Abstract
BACKGROUND Lung cancer poses a serious threat to human health, but its molecular mechanisms remain unclear. Circular RNAs (circRNAs) are closely associated with tumour progression, and the important role of 8-oxoguanine (o8G) modification in regulating the fate of RNA has been gradually revealed. However, o8G modification of circRNAs has not been reported. We identified circPLCE1, which is significantly downregulated in lung cancer, and further investigated the o8G modification of circPLCE1 and the related mechanism in lung cancer progression. METHODS We identified differentially expressed circRNAs by RNA high-throughput sequencing and then conducted methylated RNA immunoprecipitation (MeRIP), immunofluorescence (IF) analysis, crosslinking immunoprecipitation (CLIP) and actinomycin D (ActD) assays to explore circPLCE1 o8G modification. The biological functions of circPLCE1 in vivo and in vitro were clarified via establishing a circPLCE1 silencing/overexpression system. Tagged RNA affinity purification (TRAP), RNA Immunoprecipitation (RIP) and coimmunoprecipitation (Co-IP) assays, and pSIN-PAmCherry-KFERQ-NE reporter gene were used to elucidate the molecular mechanism by which circPLCE1 inhibits lung cancer progression. RESULTS This study revealed that reactive oxygen species (ROS) can induce circPLCE1 o8G modification and that AUF1 can mediate a decrease in circPLCE1 stability. We found that circPLCE1 significantly inhibited lung cancer progression in vitro and in vivo and that its expression was associated with tumour stage and prognosis. The molecular mechanism was elucidated: circPLCE1 targets the HSC70 protein, increases its ubiquitination level, regulates ATG5-dependent macroautophagy via the chaperone-mediated autophagy (CMA) pathway, and ultimately inhibits lung cancer progression. CONCLUSION o8G-modified circPLCE1 inhibits lung cancer progression through CMA to inhibit macroautophagy and alter cell fate. This study provides not only a new theoretical basis for elucidating the molecular mechanism of lung cancer progression but also potential targets for lung cancer treatment.
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Affiliation(s)
- Qingyun Zhao
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Dunyu Cai
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Haotian Xu
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Yihong Gao
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Ruirui Zhang
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Xiaodong Zhou
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Xingcai Chen
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Sixian Chen
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Jiaxi Wu
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Wenyi Peng
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Shengyi Yuan
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Deqing Li
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Gang Li
- School of Public Health, Guangxi Medical University, Nanning, 530021, China.
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China.
| | - Aruo Nan
- School of Public Health, Guangxi Medical University, Nanning, 530021, China.
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China.
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12
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Wang Y, Xu N, Ndzie Noah ML, Chen L, Zhan X. Pyruvate Kinase M1/2 Proteoformics for Accurate Insights into Energy Metabolism Abnormity to Promote the Overall Management of Ovarian Cancer Towards Predictive, Preventive, and Personalized Medicine Approaches. Metabolites 2025; 15:203. [PMID: 40137167 PMCID: PMC11944880 DOI: 10.3390/metabo15030203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2025] [Revised: 03/01/2025] [Accepted: 03/12/2025] [Indexed: 03/27/2025] Open
Abstract
Ovarian cancer (OC) is a global health problem that frequently presents at advanced stages, is predisposed to recurrence, readily develops resistance to platinum-based drugs, and has a low survival rate. Predictive, preventive, and personalized medicine (PPPM/3PM) offers an integrated solution with the use of genetic, proteomic, and metabolic biomarkers to identify high-risk individuals for early detection. Metabolic reprogramming is one of the key strategies employed by tumor cells to adapt to the microenvironment and support unlimited proliferation. Pyruvate kinases M1 and M2 (PKM1/2) are encoded by the PKM gene, a pivotal enzyme in the last step of the glycolytic pathway, which is at the crossroads of aerobic oxidation and the Warburg effect to serve as a potential regulator of glucose metabolism and influence cellular energy production and metabolic reprogramming. Commonly, the ratio of PKM1-to-PKM2 is changed in tumors compared to normal controls, and PKM2 is highly expressed in OC to induce a high glycolysis rate and participate in the malignant invasion and metastatic characteristics of cancer cells with epithelial/mesenchymal transition (EMT). PKM2 inhibitors suppress the migration and growth of OC cells by interfering with the Warburg effect. Proteoforms are the final structural and functional forms of a gene/protein, and the canonical protein PKM contains all proteoforms encoded by the same PKM gene. The complexity of PKM can be elucidated by proteoformics. The OC-specific PKM proteoform might represent a specific target for therapeutic interventions against OC. In the framework of PPPM/3PM, the OC-specific PKM proteoform might be the early warning and prognosis biomarker. It is important to clarify the molecular mechanisms of PKM proteoforms in cancer metabolism. This review analyzes the expression, function, and molecular mechanisms of PKM proteoforms in OC, which help identify specific biomarkers for OC.
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Affiliation(s)
- Yan Wang
- Department of Gynecological Oncology, Shandong Cancer Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan 250117, China; (Y.W.); (N.X.); (M.L.N.N.)
- Shandong Provincial Key Laboratory of Precision Oncology, Shandong Cancer Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan 250117, China
- Department of Gynecology, Gaotang County Medical Center, Liaocheng 252800, China
| | - Nuo Xu
- Department of Gynecological Oncology, Shandong Cancer Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan 250117, China; (Y.W.); (N.X.); (M.L.N.N.)
| | - Marie Louise Ndzie Noah
- Department of Gynecological Oncology, Shandong Cancer Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan 250117, China; (Y.W.); (N.X.); (M.L.N.N.)
| | - Liang Chen
- Department of Gynecological Oncology, Shandong Cancer Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan 250117, China; (Y.W.); (N.X.); (M.L.N.N.)
- Shandong Provincial Key Medical and Health Laboratory of Ovarian Cancer Multiomics & Jinan Key Laboratory of Cancer Multiomics, Medical Science and Technology Innovation Center, Shandong First Medical University, 6699 Qingdao Road, Jinan 250117, China
| | - Xianquan Zhan
- Department of Gynecological Oncology, Shandong Cancer Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan 250117, China; (Y.W.); (N.X.); (M.L.N.N.)
- Shandong Provincial Key Laboratory of Precision Oncology, Shandong Cancer Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan 250117, China
- Shandong Provincial Key Medical and Health Laboratory of Ovarian Cancer Multiomics & Jinan Key Laboratory of Cancer Multiomics, Medical Science and Technology Innovation Center, Shandong First Medical University, 6699 Qingdao Road, Jinan 250117, China
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13
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Yang L, You J, Yang X, Jiao R, Xu J, Zhang Y, Mi W, Zhu L, Ye Y, Ren R, Min D, Tang M, Chen L, Li F, Liu P. ACSS2 drives senescence-associated secretory phenotype by limiting purine biosynthesis through PAICS acetylation. Nat Commun 2025; 16:2071. [PMID: 40021646 PMCID: PMC11871226 DOI: 10.1038/s41467-025-57334-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2024] [Accepted: 02/19/2025] [Indexed: 03/03/2025] Open
Abstract
Senescence-associated secretory phenotype (SASP) mediates the biological effects of senescent cells on the tissue microenvironment and contributes to ageing-associated disease progression. ACSS2 produces acetyl-CoA from acetate and epigenetically controls gene expression through histone acetylation under various circumstances. However, whether and how ACSS2 regulates cellular senescence remains unclear. Here, we show that pharmacological inhibition and deletion of Acss2 in mice blunts SASP and abrogates the pro-tumorigenic and immune surveillance functions of senescent cells. Mechanistically, ACSS2 directly interacts with and promotes the acetylation of PAICS, a key enzyme for purine biosynthesis. The acetylation of PAICS promotes autophagy-mediated degradation of PAICS to limit purine metabolism and reduces dNTP pools for DNA repair, exacerbating cytoplasmic chromatin fragment accumulation and SASP. Altogether, our work links ACSS2-mediated local acetyl-CoA generation to purine metabolism through PAICS acetylation that dictates the functionality of SASP, and identifies ACSS2 as a potential senomorphic target to prevent senescence-associated diseases.
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Affiliation(s)
- Li Yang
- Research and Innovation Center, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, 201203, China
| | - Jianwei You
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, 200438, China
| | - Xincheng Yang
- Research and Innovation Center, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, 201203, China
| | - Ruishu Jiao
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Xu
- Research and Innovation Center, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, 201203, China
| | - Yue Zhang
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, 200438, China
| | - Wen Mi
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, 200438, China
| | - Lingzhi Zhu
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, 200438, China
| | - Youqiong Ye
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruobing Ren
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, 200438, China
| | - Delin Min
- Research and Innovation Center, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, 201203, China
| | - Meilin Tang
- Research and Innovation Center, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, 201203, China
| | - Li Chen
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, 200438, China
| | - Fuming Li
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, 200438, China
| | - Pingyu Liu
- Research and Innovation Center, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, 201203, China.
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14
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Wang J, Liu J, Yang F, Sun Y, Chen J, Liu J, Sun T, Fan R, Pei F, Luo S, Li J, Luo J. GMRSP encoded by lncRNA H19 regulates metabolic reprogramming and alleviates aortic dissection. Nat Commun 2025; 16:1719. [PMID: 39966416 PMCID: PMC11836370 DOI: 10.1038/s41467-025-57011-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 02/07/2025] [Indexed: 02/20/2025] Open
Abstract
Metabolic disturbances are hallmarks of vascular smooth muscle cell (VSMC) phenotypic transitions, which play a critical role in the pathogenesis of aortic dissection (AD). In this study, we identify and characterize glucose metabolism regulatory protein (GMRSP), a protein encoded by lncRNA H19. Using VSMC-specific GMRSP induction in knock-in mice, adeno-associated virus-mediated GMRSP overexpression, and exosomal GMRSP delivery, we demonstrate significant improvements in AD and mitochondrial dysfunction. Mechanistically, GMRSP inhibits heterogeneous nuclear ribonucleoprotein (hnRNP) A2B1-mediated alternative splicing of pyruvate kinase M (PKM) pre-mRNA, leading to reduced PKM2 production and glycolysis. This reprogramming preserves the contractile phenotype of VSMCs and prevents their transition to a proliferative state. Importantly, pharmacological activation of PKM2 via TEPP-46 abrogates the protective effects of GMRSP in vivo and in vitro. Clinical relevance is shown by elevated plasma PKM2 levels in AD patients, which correlate with poor prognosis. Collectively, these findings indicate GMRSP as a key regulator of VSMC metabolism and phenotypic stability, highlighting its potential as a therapeutic target for AD.
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MESH Headings
- Animals
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- Aortic Dissection/genetics
- Aortic Dissection/metabolism
- Aortic Dissection/pathology
- Mice
- Humans
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/cytology
- Pyruvate Kinase/metabolism
- Pyruvate Kinase/genetics
- Thyroid Hormones/metabolism
- Thyroid Hormones/genetics
- Thyroid Hormones/blood
- Myocytes, Smooth Muscle/metabolism
- Thyroid Hormone-Binding Proteins
- Male
- Glycolysis
- Membrane Proteins/metabolism
- Membrane Proteins/genetics
- Carrier Proteins/metabolism
- Carrier Proteins/genetics
- Mice, Inbred C57BL
- Alternative Splicing
- Female
- Mitochondria/metabolism
- Gene Knock-In Techniques
- Metabolic Reprogramming
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Affiliation(s)
- Jizhong Wang
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital Ganzhou Hospital, Guangdong Academy of Medical Sciences, Ganzhou, China
- Department of Cardiology, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Jitao Liu
- Department of Cardiology, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Fan Yang
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Yinghao Sun
- Department of Cardiology, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Jiaohua Chen
- Department of Cardiology, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Jie Liu
- Department of Cardiac Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Tucheng Sun
- Department of Cardiac Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Ruixin Fan
- Department of Cardiac Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Fang Pei
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital Ganzhou Hospital, Guangdong Academy of Medical Sciences, Ganzhou, China
| | - Songyuan Luo
- Department of Cardiology, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
| | - Jie Li
- Department of Cardiology, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
| | - Jianfang Luo
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital Ganzhou Hospital, Guangdong Academy of Medical Sciences, Ganzhou, China.
- Department of Cardiology, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
- Guangdong Provincial People's Hospital Nanhai Hospital, foshan, China.
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15
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Pan Z, Huang X, Liu M, Jiang X, He G. Research Advances in Chaperone-Mediated Autophagy (CMA) and CMA-Based Protein Degraders. J Med Chem 2025; 68:2314-2332. [PMID: 39818775 DOI: 10.1021/acs.jmedchem.4c02681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2025]
Abstract
Molecular mechanisms of chaperone-mediated autophagy (CMA) constitute essential regulatory elements in cellular homeostasis, encompassing protein quality control, metabolic regulation, cellular signaling cascades, and immunological functions. Perturbations in CMA functionality have been causally associated with various pathological conditions, including neurodegenerative pathologies and neoplastic diseases. Recent advances in targeted protein degradation (TPD) methodologies have demonstrated that engineered degraders incorporating KFERQ-like motifs can facilitate lysosomal translocation and subsequent proteolysis of noncanonical substrates, offering novel therapeutic interventions for both oncological and neurodegenerative disorders. This comprehensive review elucidates the molecular mechanisms, physiological significance, and pathological implications of CMA pathways. Additionally, it provides a critical analysis of contemporary developments in CMA-based degrader technologies, with particular emphasis on their structural determinants, mechanistic principles, and therapeutic applications. The discourse extends to current technical limitations in CMA investigation and identifies key obstacles that must be addressed to advance the development of CMA-targeting therapeutic agents.
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Affiliation(s)
- Zhaoping Pan
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaowei Huang
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Mingxia Liu
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xian Jiang
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Gu He
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
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16
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Wang Y, Liu J, Wang H, Jiang P, Cao L, Lu S, Zhang S, Yang R, Feng H, Cao L, Song X. Multiple regulatory mechanisms, functions and therapeutic potential of chaperone-mediated autophagy. Theranostics 2025; 15:2778-2793. [PMID: 40083922 PMCID: PMC11898275 DOI: 10.7150/thno.107761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2024] [Accepted: 01/25/2025] [Indexed: 03/16/2025] Open
Abstract
Autophagy refers to the proteolytic degradation of cytoplasmic components by lysosomes, and includes three defined types: macroautophagy, chaperone-mediated autophagy (CMA), and microautophagy. Although the regulatory pathways of macroautophagy are well defined, how CMA is accurately regulated remains less understood. In recent years, emerging evidence has suggested that chaperone-mediated autophagy is regulated by multiple mechanisms at nucleic acid and protein levels. In this review, we summarized recent progress on multiple regulatory mechanisms and functions concerning CMA, as well as novel treatments targeting specific regulation sites.
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Affiliation(s)
- Yuhan Wang
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning Province 110122, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors of Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province 110122, China
| | - Jingwei Liu
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning Province 110122, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors of Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province 110122, China
| | - Hao Wang
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Pengcheng Jiang
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning Province 110122, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors of Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province 110122, China
| | - Liangzi Cao
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning Province 110122, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors of Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province 110122, China
| | - Songming Lu
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning Province 110122, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors of Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province 110122, China
| | - Siyi Zhang
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning Province 110122, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors of Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province 110122, China
| | - Ruohan Yang
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning Province 110122, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors of Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province 110122, China
| | - Hao Feng
- Department of Ophthalmology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, China
| | - Liu Cao
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning Province 110122, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors of Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province 110122, China
| | - Xiaoyu Song
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning Province 110122, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors of Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province 110122, China
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17
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Tutas J, Tolve M, Özer-Yildiz E, Ickert L, Klein I, Silverman Q, Liebsch F, Dethloff F, Giavalisco P, Endepols H, Georgomanolis T, Neumaier B, Drzezga A, Schwarz G, Thorens B, Gatto G, Frezza C, Kononenko NL. Autophagy regulator ATG5 preserves cerebellar function by safeguarding its glycolytic activity. Nat Metab 2025; 7:297-320. [PMID: 39815080 PMCID: PMC11860254 DOI: 10.1038/s42255-024-01196-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 11/29/2024] [Indexed: 01/18/2025]
Abstract
Dysfunctions in autophagy, a cellular mechanism for breaking down components within lysosomes, often lead to neurodegeneration. The specific mechanisms underlying neuronal vulnerability due to autophagy dysfunction remain elusive. Here we show that autophagy contributes to cerebellar Purkinje cell (PC) survival by safeguarding their glycolytic activity. Outside the conventional housekeeping role, autophagy is also involved in the ATG5-mediated regulation of glucose transporter 2 (GLUT2) levels during cerebellar maturation. Autophagy-deficient PCs exhibit GLUT2 accumulation on the plasma membrane, along with increased glucose uptake and alterations in glycolysis. We identify lysophosphatidic acid and serine as glycolytic intermediates that trigger PC death and demonstrate that the deletion of GLUT2 in ATG5-deficient mice mitigates PC neurodegeneration and rescues their ataxic gait. Taken together, this work reveals a mechanism for regulating GLUT2 levels in neurons and provides insights into the neuroprotective role of autophagy by controlling glucose homeostasis in the brain.
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Affiliation(s)
- Janine Tutas
- CECAD Excellence Center, University of Cologne, Cologne, Germany
- Center for Physiology and Pathophysiology, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Marianna Tolve
- CECAD Excellence Center, University of Cologne, Cologne, Germany
- Center for Physiology and Pathophysiology, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Ebru Özer-Yildiz
- CECAD Excellence Center, University of Cologne, Cologne, Germany
- Center for Physiology and Pathophysiology, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Lotte Ickert
- CECAD Excellence Center, University of Cologne, Cologne, Germany
- Center for Physiology and Pathophysiology, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Ines Klein
- Department of Neurology, University Hospital of Cologne, Cologne, Germany
| | - Quinn Silverman
- Department of Neurology, University Hospital of Cologne, Cologne, Germany
| | - Filip Liebsch
- Institute of Biochemistry, Department of Chemistry, University of Cologne, Cologne, Germany
| | | | | | - Heike Endepols
- Department of Nuclear Medicine, Faculty of Medicine, University Hospital Cologne, Cologne, Germany
- Institute of Radiochemistry and Experimental Molecular Imaging, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Forschungszentrum Jülich GmbH, Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Jülich, Germany
| | | | - Bernd Neumaier
- Institute of Radiochemistry and Experimental Molecular Imaging, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Forschungszentrum Jülich GmbH, Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Jülich, Germany
| | - Alexander Drzezga
- Institute of Radiochemistry and Experimental Molecular Imaging, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Forschungszentrum Jülich GmbH, Institute of Neuroscience and Medicine, Molecular Organization of the Brain (INM-2), Jülich, Germany
- German Center for Neurodegenerative Diseases (DZNE), Bonn-Cologne, Germany
| | - Guenter Schwarz
- Institute of Biochemistry, Department of Chemistry, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Bernard Thorens
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Graziana Gatto
- Department of Neurology, University Hospital of Cologne, Cologne, Germany
| | - Christian Frezza
- CECAD Excellence Center, University of Cologne, Cologne, Germany
- Institute for Genetics, Faculty of Mathematics and Natural Sciences, University of Cologne, Cologne, Germany
| | - Natalia L Kononenko
- CECAD Excellence Center, University of Cologne, Cologne, Germany.
- Center for Physiology and Pathophysiology, Faculty of Medicine and University Hospital Cologne, Cologne, Germany.
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
- Institute for Genetics, Faculty of Mathematics and Natural Sciences, University of Cologne, Cologne, Germany.
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18
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Renganathan A, Minaya MA, Broder M, Alfradique-Dunham I, Moritz M, Bhagat R, Marsh J, Verbeck A, Galasso G, Starr E, Agard DA, Cruchaga C, Karch CM. A novel lncRNA FAM151B-DT regulates autophagy and degradation of aggregation prone proteins. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2025:2025.01.22.25320997. [PMID: 39974060 PMCID: PMC11838976 DOI: 10.1101/2025.01.22.25320997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/21/2025]
Abstract
Neurodegenerative diseases share common features of protein aggregation along with other pleiotropic traits, including shifts in transcriptional patterns, neuroinflammation, disruptions in synaptic signaling, mitochondrial dysfunction, oxidative stress, and impaired clearance mechanisms like autophagy. However, key regulators of these pleotropic traits have yet to be identified. Here, we discovered a novel long non-coding RNA (lncRNA), FAM151B-DT, that is reduced in a stem cell model of frontotemporal dementia with tau inclusions (FTLD-tau) and in brains from FTLD-tau, progressive supranuclear palsy, Alzheimer's disease, and Parkinson's disease patients. We show that silencing FAM151B-DT in vitro is sufficient to enhance tau aggregation. To begin to understand the mechanism by which FAM151B-DT mediates tau aggregation and contributes to several neurodegenerative diseases, we deeply characterized this novel lncRNA and found that FAM151B-DT resides in the cytoplasm where it interacts with tau, α-synuclein, HSC70, and other proteins enriched in protein homeostasis. When silenced, FAM151B-DT blocks autophagy, leading to the accumulation of tau and α-synuclein. Importantly, we discovered that increasing FAM151B-DT expression is sufficient to promote autophagic flux, reduce phospho-tau and α-synuclein, and reduce tau aggregation. Overall, these findings pave the way for further exploration of FAM151B-DT as a promising molecular target for several neurodegenerative diseases.
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Affiliation(s)
- Arun Renganathan
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
| | - Miguel A. Minaya
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
| | - Matthew Broder
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
| | | | - Michelle Moritz
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA 94158, USA
| | - Reshma Bhagat
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
| | - Jacob Marsh
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
| | - Anthony Verbeck
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
| | - Grant Galasso
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
| | - Emma Starr
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
| | - David A. Agard
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA 94158, USA
- Chan Zuckerberg Imaging Institute, Redwood City, CA
| | - Carlos Cruchaga
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
- Knight Alzheimer Disease Research Center, Washington University in St Louis, St Louis, MO
| | - Celeste M. Karch
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
- Knight Alzheimer Disease Research Center, Washington University in St Louis, St Louis, MO
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19
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Jiang Z, Xiong N, Yan R, Li ST, Liu H, Mao Q, Sun Y, Shen S, Ye L, Gao P, Zhang P, Jia W, Zhang H. PDHX acetylation facilitates tumor progression by disrupting PDC assembly and activating lactylation-mediated gene expression. Protein Cell 2025; 16:49-63. [PMID: 39311688 DOI: 10.1093/procel/pwae052] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 08/29/2024] [Indexed: 01/07/2025] Open
Abstract
Deactivation of the mitochondrial pyruvate dehydrogenase complex (PDC) is important for the metabolic switching of cancer cell from oxidative phosphorylation to aerobic glycolysis. Studies examining PDC activity regulation have mainly focused on the phosphorylation of pyruvate dehydrogenase (E1), leaving other post-translational modifications largely unexplored. Here, we demonstrate that the acetylation of Lys 488 of pyruvate dehydrogenase complex component X (PDHX) commonly occurs in hepatocellular carcinoma, disrupting PDC assembly and contributing to lactate-driven epigenetic control of gene expression. PDHX, an E3-binding protein in the PDC, is acetylated by the p300 at Lys 488, impeding the interaction between PDHX and dihydrolipoyl transacetylase (E2), thereby disrupting PDC assembly to inhibit its activation. PDC disruption results in the conversion of most glucose to lactate, contributing to the aerobic glycolysis and H3K56 lactylation-mediated gene expression, facilitating tumor progression. These findings highlight a previously unrecognized role of PDHX acetylation in regulating PDC assembly and activity, linking PDHX Lys 488 acetylation and histone lactylation during hepatocellular carcinoma progression and providing a potential biomarker and therapeutic target for further development.
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Affiliation(s)
- Zetan Jiang
- Department of General Surgery, Anhui Provincial Hospital, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Nanchi Xiong
- Department of General Surgery, Anhui Provincial Hospital, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
- Insitute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei 230601, China
| | - Ronghui Yan
- Department of General Surgery, Anhui Provincial Hospital, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Shi-Ting Li
- Medical Research Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou 510080, China
| | - Haiying Liu
- Department of General Surgery, Anhui Provincial Hospital, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Qiankun Mao
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Yuchen Sun
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Shengqi Shen
- Medical Research Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou 510080, China
| | - Ling Ye
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Ping Gao
- Medical Research Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou 510080, China
| | - Pinggen Zhang
- Department of General Surgery, Anhui Provincial Hospital, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Weidong Jia
- Department of General Surgery, Anhui Provincial Hospital, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Huafeng Zhang
- Department of General Surgery, Anhui Provincial Hospital, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230027, China
- Insitute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei 230601, China
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20
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Lee KCY, Williams AL, Hara A, Khadka VS, Hayashi J, Shohet RV. Loss of PKM2 dysregulates inflammatory signaling in the infarcted murine heart. Physiol Rep 2025; 13:e70193. [PMID: 39761962 PMCID: PMC11705480 DOI: 10.14814/phy2.70193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2024] [Revised: 12/24/2024] [Accepted: 12/24/2024] [Indexed: 01/11/2025] Open
Abstract
Inflammation and a metabolic shift from oxidative metabolism to glycolysis are common in the ischemic heart, the latter partly controlled by pyruvate kinase (muscle, PKM). We previously identified alternative splicing promoting the PKM2 isoform after myocardial infarction (MI). We examined the role of PKM2 physiological upregulation after MI, modeled by ligation of the left anterior descending coronary artery, using global PKM2 knockout (PKM2-/-) mice. Echocardiography showed similar cardiac function between PKM2-/- and control mice after MI. However, PKM2-/- infarcted hearts had increased abundances of transcripts associated with oxidative stress and immune responses. Immunohistochemistry revealed greater abundance of macrophages in PKM2-/- hearts prior to MI, with a small increase in CD86+ macrophages in PKM2-/- infarcted hearts. Elevated baseline plasma IL-6, IL-1β, and C-reactive protein, and cardiac IL-6, 3 days post-MI, were observed in PKM2-/- mice. Oxidative lipid products were also elevated in baseline PKM2-/- hearts, while antioxidant glutathione peroxidase 4 was reduced. Greater fibrosis was seen in PKM2-/- hearts 28 days after MI. These findings suggest Pkm2 ablation primes the heart for increased oxidative stress, inflammation, and fibrosis post-MI. The natural upregulation of PKM2 may mitigate fibrosis by reducing oxidative stress and inflammation, highlighting its protective role in the infarcted heart.
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Affiliation(s)
- Katie C. Y. Lee
- Department of Medicine, John A. Burns School of MedicineUniversity of Hawaii MānoaHonoluluHawaiiUSA
- Department of Cell and Molecular Biology, John A. Burns School of MedicineUniversity of Hawaii MānoaHonoluluHawaiiUSA
| | - Allison L. Williams
- Department of Medicine, John A. Burns School of MedicineUniversity of Hawaii MānoaHonoluluHawaiiUSA
| | - Akitoshi Hara
- Department of Medicine, John A. Burns School of MedicineUniversity of Hawaii MānoaHonoluluHawaiiUSA
| | - Vedbar S. Khadka
- Bioinformatics Core, Department of Quantitative Health Sciences, John A. Burns School of MedicineUniversity of Hawaii MānoaHonoluluHawaiiUSA
| | - Jeffrey Hayashi
- John A. Burns School of MedicineUniversity of Hawaii MānoaHonoluluHawaiiUSA
| | - Ralph V. Shohet
- Department of Medicine, John A. Burns School of MedicineUniversity of Hawaii MānoaHonoluluHawaiiUSA
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21
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Wang C, Ma X. The role of acetylation and deacetylation in cancer metabolism. Clin Transl Med 2025; 15:e70145. [PMID: 39778006 PMCID: PMC11706801 DOI: 10.1002/ctm2.70145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2024] [Revised: 12/02/2024] [Accepted: 12/09/2024] [Indexed: 01/11/2025] Open
Abstract
As a hallmark of cancer, metabolic reprogramming adjusts macromolecular synthesis, energy metabolism and redox homeostasis processes to adapt to and promote the complex biological processes of abnormal growth and proliferation. The complexity of metabolic reprogramming lies in its precise regulation by multiple levels and factors, including the interplay of multiple signalling pathways, precise regulation of transcription factors and dynamic adjustments in metabolic enzyme activity. In this complex regulatory network, acetylation and deacetylation, which are important post-translational modifications, regulate key molecules and processes related to metabolic reprogramming by affecting protein function and stability. Dysregulation of acetylation and deacetylation may alter cancer cell metabolic patterns by affecting signalling pathways, transcription factors and metabolic enzyme activity related to metabolic reprogramming, increasing the susceptibility to rapid proliferation and survival. In this review, we focus on discussing how acetylation and deacetylation regulate cancer metabolism, thereby highlighting the central role of these post-translational modifications in metabolic reprogramming, and hoping to provide strong support for the development of novel cancer treatment strategies. KEY POINTS: Protein acetylation and deacetylation are key regulators of metabolic reprogramming in tumour cells. These modifications influence signalling pathways critical for tumour metabolism. They modulate the activity of transcription factors that drive gene expression changes. Metabolic enzymes are also affected, altering cellular metabolism to support tumour growth.
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Affiliation(s)
- Cuicui Wang
- Department of Obstetrics and GynecologyShengjing Hospital of China Medical UniversityShenyang CityLiaoning ProvinceChina
- Key Laboratory of Gynecological Oncology of Liaoning ProvinceDepartment of Obstetrics and GynecologyShengjing Hospital of China Medical UniversityShenyangLiaoning ProvinceChina
| | - Xiaoxin Ma
- Department of Obstetrics and GynecologyShengjing Hospital of China Medical UniversityShenyang CityLiaoning ProvinceChina
- Key Laboratory of Gynecological Oncology of Liaoning ProvinceDepartment of Obstetrics and GynecologyShengjing Hospital of China Medical UniversityShenyangLiaoning ProvinceChina
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22
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Huang J, Wang J. Selective protein degradation through chaperone‑mediated autophagy: Implications for cellular homeostasis and disease (Review). Mol Med Rep 2025; 31:13. [PMID: 39513615 PMCID: PMC11542157 DOI: 10.3892/mmr.2024.13378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 06/03/2024] [Indexed: 11/15/2024] Open
Abstract
Cells rely on autophagy for the degradation and recycling of damaged proteins and organelles. Chaperone-mediated autophagy (CMA) is a selective process targeting proteins for degradation through the coordinated function of molecular chaperones and the lysosome‑associated membrane protein‑2A receptor (LAMP2A), pivotal in various cellular processes from signal transduction to the modulation of cellular responses under stress. In the present review, the intricate regulatory mechanisms of CMA were elucidated through multiple signaling pathways such as retinoic acid receptor (RAR)α, AMP‑activated protein kinase (AMPK), p38‑TEEB‑NLRP3, calcium signaling‑NFAT and PI3K/AKT, thereby expanding the current understanding of CMA regulation. A comprehensive exploration of CMA's versatile roles in cellular physiology were further provided, including its involvement in maintaining protein homeostasis, regulating ferroptosis, modulating metabolic diversity and influencing cell cycle and proliferation. Additionally, the impact of CMA on disease progression and therapeutic outcomes were highlighted, encompassing neurodegenerative disorders, cancer and various organ‑specific diseases. Therapeutic strategies targeting CMA, such as drug development and gene therapy were also proposed, providing valuable directions for future clinical research. By integrating recent research findings, the present review aimed to enhance the current understanding of cellular homeostasis processes and emphasize the potential of targeting CMA in therapeutic strategies for diseases marked by CMA dysfunction.
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Affiliation(s)
- Jiahui Huang
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-Constructed by Henan Province and Education Ministry of People's Republic of China, Henan University of Chinese Medicine, Zhengzhou, Henan 450046, P.R. China
- College of Traditional Chinese Medicine, Henan University of Traditional Chinese Medicine, Zhengzhou, Henan 450046, P.R. China
| | - Jiazhen Wang
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-Constructed by Henan Province and Education Ministry of People's Republic of China, Henan University of Chinese Medicine, Zhengzhou, Henan 450046, P.R. China
- Academy of Chinese Medicine Science, Henan University of Chinese Medicine, Zhengzhou, Henan 450046, P.R. China
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23
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Khan S, Upadhyay S, Hassan MI. Novel prospects in targeting neurodegenerative disorders via autophagy. Eur J Pharmacol 2024; 984:177060. [PMID: 39426466 DOI: 10.1016/j.ejphar.2024.177060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2024] [Revised: 09/12/2024] [Accepted: 10/17/2024] [Indexed: 10/21/2024]
Abstract
Protein aggregation occurs as a consequence of dysfunction in the normal cellular proteostasis, which leads to the accumulation of toxic fibrillar aggregates of certain proteins in the cell. Enhancing the activity of proteolytic pathways may serve as a way of clearing these aggregates in a cell, and consequently, autophagy has surfaced as a promising target for the treatment of neurodegenerative disorders. Several strategies involving small molecule compounds that stimulate autophagic pathway of cell have been discovered. However, despite many compounds having demonstrated favorable outcomes in experimental disease models, the translation of these findings into clinical benefits for patient's remains limited. Consequently, alternative strategies are actively being explored to effectively target neurodegeneration via autophagy modulation. Recently, newer approaches such as modulation of expression of autophagic genes have emerged as novel and interesting areas of research in this field, which hold promising potential in neuroprotection. Similarly, as discussed for the first time in this review, the use of autophagy-inducing nanoparticles by utilizing their physicochemical properties to stimulate the autophagic process, rather than relying on their role as drug carriers, offers a completely fresh avenue for targeting neurodegeneration without the risk of drug-associated adverse effects. This review provides fresh perspectives on developing autophagy-targeted therapies for neurodegenerative disorders. Additionally, it discusses the challenges and impediments of implementing these strategies to alleviate the pathogenesis of neurodegenerative disorders in clinical settings and highlights the prospects and directions of future research in this context.
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Affiliation(s)
- Shumayila Khan
- International Health Division, Indian Council of Medical Research, Ansari Nagar, New Delhi, 110029, India
| | - Saurabh Upadhyay
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, 110025, India.
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24
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Liu K, Wei H, Nong W, Peng H, Li Y, Lei X, Zhang S. Nampt/SIRT2/LDHA pathway-mediated lactate production regulates follicular dysplasia in polycystic ovary syndrome. Free Radic Biol Med 2024; 225:776-793. [PMID: 39489197 DOI: 10.1016/j.freeradbiomed.2024.10.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 10/17/2024] [Accepted: 10/30/2024] [Indexed: 11/05/2024]
Abstract
Decreased nicotinamide adenine dinucleotide (NAD+) content has been shown to contribute to metabolic dysfunction during aging, including polycystic ovary syndrome (PCOS). However, the effect of NAD+ on ovulatory dysfunction in PCOS by regulating glycolysis has not been reported. Based on the observations of granulosa cells (GCs) transcriptome data from the Gene Expression Omnibus (GEO) database, the signal pathways including glycolysis and nicotinate-nicotinamide metabolism were significantly enriched, and most genes of the above pathway like LDHA and SIRT2 were down-regulated in PCOS patients. Therefore, the PCOS rat model was established by combining letrozole with a high-fat diet (HFD), we demonstrate that in vivo supplementation of nicotinamide mononucleotide (NMN) significantly improves the ovulatory dysfunction by facilitating the follicular development, promoting luteal formation, as well the fertility in PCOS rats. Furthermore, target energy metabolomics and transcriptome results showed that NMN supplementation ameliorates the lactate production by activating glycolytic process in the ovary. In vitro, when NAD+ synthesis and SIRT2 expression were inhibited, lactate content in KGN cells was decreased and LDHA expression was significantly inhibited. We confirmed that FK866 can enhance the acetylation of LDHA on 293T cells by Co-immunoprecipitation (Co-IP) assay. We also observed that inhibition of NAD+ synthesis can reduce the activity and increase the apoptosis of KGN cells. Overall, these benefits of NMN were elucidated and the Nampt/SIRT2/LDHA pathway mediated lactate production in granulosa cells played an important role in the improvement of follicular development disorders in PCOS. This study will provide experimental evidence for the clinical application of NMN in the treatment of PCOS in the future.
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Affiliation(s)
- Ke Liu
- Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, 541001, China; Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang Hunan, 421001, China.
| | - Huimei Wei
- Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, 541001, China; Gynecology Department, Maoming People's Hospital, Maoming, 525000, China.
| | - Weihua Nong
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Department of Obstetrics and Gynecology, Department of Reproductive Medicine Center, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China.
| | - Huo Peng
- School of Public Health, Guilin Medical University, Guilin, 541001, China.
| | - Youzhu Li
- Department of Reproductive Medicine, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China.
| | - Xiaocan Lei
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang Hunan, 421001, China.
| | - Shun Zhang
- Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, 541001, China.
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25
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Shilenok I, Kobzeva K, Soldatov V, Deykin A, Bushueva O. C11orf58 (Hero20) Gene Polymorphism: Contribution to Ischemic Stroke Risk and Interactions with Other Heat-Resistant Obscure Chaperones. Biomedicines 2024; 12:2603. [PMID: 39595169 PMCID: PMC11592265 DOI: 10.3390/biomedicines12112603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2024] [Revised: 11/11/2024] [Accepted: 11/12/2024] [Indexed: 11/28/2024] Open
Abstract
Background: Recently identified Hero proteins, which possess chaperone-like functions, are promising candidates for research into atherosclerosis-related diseases, including ischemic stroke (IS). Methods: 2204 Russian subjects (917 IS patients and 1287 controls) were genotyped for fifteen common SNPs in Hero20 gene C11orf58 using probe-based PCR and the MassArray-4 system. Results: Six C11orf58 SNPs were significantly associated with an increased risk of IS in the overall group (OG) and significantly modified by smoking (SMK) and low fruit/vegetable intake (LFVI): rs10766342 (effect allele (EA) A; P(OG = 0.02; SMK = 0.009; LFVI = 0.04)), rs11024032 (EA T; P(OG = 0.01; SMK = 0.01; LFVI = 0.036)), rs11826990 (EA G; P(OG = 0.007; SMK = 0.004; LFVI = 0.03)), rs3203295 (EA C; P(OG = 0.016; SMK = 0.01; LFVI = 0.04)), rs10832676 (EA G; P(OG = 0.006; SMK = 0.002; LFVI = 0.01)), rs4757429 (EA T; P(OG = 0.02; SMK = 0.04; LFVI = 0.04)). The top ten intergenic interactions of Hero genes (two-, three-, and four-locus models) involved exclusively polymorphic loci of C11orf58 and C19orf53 and were characterized by synergic and additive (independent) effects between SNPs. Conclusions: Thus, C11orf58 gene polymorphism represents a major risk factor for IS. Bioinformatic analysis showed the involvement of C11orf58 SNPs in molecular mechanisms of IS mediated by their role in the regulation of redox homeostasis, inflammation, vascular remodeling, apoptosis, vasculogenesis, neurogenesis, lipid metabolism, proteostasis, hypoxia, cell signaling, and stress response. In terms of intergenic interactions, C11orf58 interacts most closely with C19orf53.
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Affiliation(s)
- Irina Shilenok
- Laboratory of Genomic Research, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 305041 Kursk, Russia
- Division of Neurology, Kursk Emergency Hospital, 305035 Kursk, Russia
| | - Ksenia Kobzeva
- Laboratory of Genomic Research, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 305041 Kursk, Russia
| | - Vladislav Soldatov
- Laboratory of Genome Editing for Biomedicine and Animal Health, Belgorod State National Research University, 308015 Belgorod, Russia
- Department of Pharmacology and Clinical Pharmacology, Belgorod State National Research University, 308015 Belgorod, Russia
| | - Alexey Deykin
- Laboratory of Genome Editing for Biomedicine and Animal Health, Belgorod State National Research University, 308015 Belgorod, Russia
- Department of Pharmacology and Clinical Pharmacology, Belgorod State National Research University, 308015 Belgorod, Russia
| | - Olga Bushueva
- Laboratory of Genomic Research, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 305041 Kursk, Russia
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 305041 Kursk, Russia
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26
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Li X, Huang Y, Liu X, Zhang L, Wang X, Zhao F, Zou L, Wu K, Chen W, Qin Y, Zeng S, Li B, He Y, Song Y, Li Z, Fan J, Zhao M, Yi L, Ding H, Fan S, Chen J. Classical swine fever virus inhibits serine metabolism-mediated antiviral immunity by deacetylating modified PHGDH. mBio 2024; 15:e0209724. [PMID: 39207107 PMCID: PMC11481501 DOI: 10.1128/mbio.02097-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Accepted: 08/05/2024] [Indexed: 09/04/2024] Open
Abstract
Classical swine fever virus (CSFV), an obligate intracellular pathogen, hijacks cellular metabolism to evade immune surveillance and facilitate its replication. The precise mechanisms by which CSFV modulates immune metabolism remain largely unknown. Our study reveals that CSFV infection disrupts serine metabolism, which plays a crucial role in antiviral immunity. Notably, we discovered that CSFV infection leads to the deacetylation of PHGDH, a key enzyme in serine metabolism, resulting in autophagic degradation. This deacetylation impairs PHGDH's enzymatic activity, reduces serine biosynthesis, weakens innate immunity, and promotes viral proliferation. Molecularly, CSFV infection induces the association of HDAC3 with PHGDH, leading to deacetylation at the K364 site. This modification attracts the E3 ubiquitin ligase RNF125, which facilitates the addition of K63-linked ubiquitin chains to PHGDH-K364R. Subsequently, PHGDH is targeted for lysosomal degradation by p62 and NDP52. Furthermore, the deacetylation of PHGDH disrupts its interaction with the NAD+ substrate, destabilizing the PHGDH-NAD complex, impeding the active site, and thereby inhibiting de novo serine synthesis. Additionally, our research indicates that deacetylated PHGDH suppresses the mitochondria-MAVS-IRF3 pathway through its regulatory effect on serine metabolism, leading to decreased IFN-β production and enhanced viral replication. Overall, our findings elucidate the complex interplay between CSFV and serine metabolism, revealing a novel aspect of viral immune evasion through the lens of immune metabolism. IMPORTANCE Classical swine fever (CSF) seriously restricts the healthy development of China's aquaculture industry, and the unclear pathogenic mechanism and pathogenesis of classical swine fever virus (CSFV) are the main obstacle to CSF prevention, control, and purification. Therefore, it is of great significance to explore the molecular mechanism of CSFV and host interplay, to search for the key signaling pathways and target molecules in the host that regulate the replication of CSFV infection, and to elucidate the mechanism of action of host immune dysfunction and immune escape due to CSFV infection for the development of novel CSFV vaccines and drugs. This study reveals the mechanism of serine metabolizing enzyme post-translational modifications and antiviral signaling proteins in the replication of CSFV and enriches the knowledge of CSFV infection and immune metabolism.
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Affiliation(s)
- Xiaowen Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yaoyao Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xueyi Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Lihong Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xinyan Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Feifan Zhao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Linke Zou
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Keke Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Wenxian Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yuwei Qin
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Sen Zeng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Bingke Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yintao He
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yiwan Song
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zhaoyao Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jindai Fan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Mingqiu Zhao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Lin Yi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Hongxing Ding
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Shuangqi Fan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jinding Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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27
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Ryu KJ, Lee KW, Park SH, Kim T, Hong KS, Kim H, Kim M, Ok DW, Kwon GNB, Park YJ, Kwon HK, Hwangbo C, Kim KD, Lee JE, Yoo J. Chaperone-mediated autophagy modulates Snail protein stability: implications for breast cancer metastasis. Mol Cancer 2024; 23:227. [PMID: 39390584 PMCID: PMC11468019 DOI: 10.1186/s12943-024-02138-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Accepted: 09/24/2024] [Indexed: 10/12/2024] Open
Abstract
Breast cancer remains a significant health concern, with triple-negative breast cancer (TNBC) being an aggressive subtype with poor prognosis. Epithelial-mesenchymal transition (EMT) is important in early-stage tumor to invasive malignancy progression. Snail, a central EMT component, is tightly regulated and may be subjected to proteasomal degradation. We report a novel proteasomal independent pathway involving chaperone-mediated autophagy (CMA) in Snail degradation, mediated via its cytosolic interaction with HSC70 and lysosomal targeting, which prevented its accumulation in luminal-type breast cancer cells. Conversely, Snail predominantly localized to the nucleus, thus evading CMA-mediated degradation in TNBC cells. Starvation-induced CMA activation downregulated Snail in TNBC cells by promoting cytoplasmic translocation. Evasion of CMA-mediated Snail degradation induced EMT, and enhanced metastatic potential of luminal-type breast cancer cells. Our findings elucidate a previously unrecognized role of CMA in Snail regulation, highlight its significance in breast cancer, and provide a potential therapeutic target for clinical interventions.
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Affiliation(s)
- Ki-Jun Ryu
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Ki Won Lee
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Seung-Ho Park
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Korea
| | - Taeyoung Kim
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Keun-Seok Hong
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Hyemin Kim
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Minju Kim
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Dong Woo Ok
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Gu Neut Bom Kwon
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Young-Jun Park
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Korea
| | - Hyuk-Kwon Kwon
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Cheol Hwangbo
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Kwang Dong Kim
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - J Eugene Lee
- Division of Biometrology, Korea Research Institute of Standards and Science, Daejeon, 34113, Korea
| | - Jiyun Yoo
- Division of Applied Life Science (Brain Korea 21 Four), Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Korea.
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Korea.
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28
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Pan J, Wu S, Pan Q, Zhang Y, He L, Yao Q, Chen J, Li J, Xu Y. CHAC1 blockade suppresses progression of lung adenocarcinoma by interfering with glucose metabolism via hijacking PKM2 nuclear translocation. Cell Death Dis 2024; 15:728. [PMID: 39368995 PMCID: PMC11455913 DOI: 10.1038/s41419-024-07114-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 09/22/2024] [Accepted: 09/25/2024] [Indexed: 10/07/2024]
Abstract
Patients with lung adenocarcinoma (LUAD) generally have poor prognosis. Abnormal cellular energy metabolism is a hallmark of LUAD. Glutathione-specific gamma-glutamylcyclotransferase 1 (CHAC1) is a member of the γ-glutamylcyclotransferase family and an unfolded protein response pathway regulatory gene. Its biological function and molecular regulatory mechanism, especially regarding energy metabolism underlying LUAD, remain unclear. By utilizing tissue microarray and data from The Cancer Genome Atlas and Gene Expression Omnibus, we found that CHAC1 expression was markedly higher in LUAD tissues than in non-tumor tissues, and was positively correlated with poor prognosis. Phenotypically, CHAC1 overexpression enhanced the proliferation, migration, invasion, tumor sphere formation, and glycolysis ability of LUAD cells, resulting in tumor growth both in vitro and in vivo. Mechanistically, through a shotgun mass spectrometry-based proteomic approach and high-throughput RNA sequencing, we found that CHAC1 acted as a bridge connecting UBA2 and PKM2, enhancing the SUMOylation of PKM2. The SUMOylated PKM2 then transferred from the cytoplasm to the nucleus, activating the expression of glycolysis-related genes and enhancing the Warburg effect. Lastly, E2F Transcription Factor 1 potently activated CHAC1 transcription by directly binding to the CHAC1 promoter in LUAD cells. The results of this study implied that CHAC1 regulates energy metabolism and promotes glycolysis in LUAD progression.
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Affiliation(s)
- Junfan Pan
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
- Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China
| | - Sixuan Wu
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
- Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China
| | - Qihong Pan
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
- Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China
| | - Yuan Zhang
- The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Liu He
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Qiwei Yao
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China.
- Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China.
| | - Jinyuan Chen
- The Central Laboratory, Fujian Key Laboratory of Precision Medicine for Cancer, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China.
| | - Jiancheng Li
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China.
- Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China.
| | - Yiquan Xu
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China.
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fuzhou, China.
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29
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Hu Y, Tang J, Xu Q, Fang Z, Li R, Yang M, Zhao J, Chen X. Role of pyruvate kinase M2 in regulating sepsis (Review). Mol Med Rep 2024; 30:185. [PMID: 39155878 DOI: 10.3892/mmr.2024.13309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Accepted: 07/29/2024] [Indexed: 08/20/2024] Open
Abstract
Glycolysis occurs in all living organisms as a form of energy supply. Pyruvate kinase M2 (PKM2) is one of the rate‑limiting enzymes in the glycolytic process. PKM2 is considered to serve an important role in several terminal diseases, including sepsis. However, to the best of our knowledge, the specific mechanistic role of PKM2 in sepsis remains to be systematically summarised. Therefore, the present review aims to summarise the roles of PKM2 in sepsis progression. In addition, potential treatment strategies for patients with sepsis are discussed. The present review hopes to lay the groundwork for studying the role of PKM2 and developing therapeutic strategies against metabolic disorders that occur during sepsis.
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Affiliation(s)
- Yifei Hu
- Department of Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang 321000, P.R. China
| | - Jing Tang
- Department of Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang 321000, P.R. China
| | - Qiao Xu
- Department of Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang 321000, P.R. China
| | - Zenghui Fang
- Department of Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang 321000, P.R. China
| | - Rongqing Li
- Department of Clinical Medicine, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu 225000, P.R. China
| | - Mengxuan Yang
- Department of Clinical Laboratory, School of Laboratory Medicine and Bioengineering, Hangzhou Medical College, Hangzhou, Zhejiang 310000, P.R. China
| | - Jie Zhao
- Department of Clinical Medicine, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu 225000, P.R. China
| | - Xin Chen
- Department of Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang 321000, P.R. China
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30
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Wu N, Zheng W, Zhou Y, Tian Y, Tang M, Feng X, Ashrafizadeh M, Wang Y, Niu X, Tambuwala M, Wang L, Tergaonkar V, Sethi G, Klionsky D, Huang L, Gu M. Autophagy in aging-related diseases and cancer: Principles, regulatory mechanisms and therapeutic potential. Ageing Res Rev 2024; 100:102428. [PMID: 39038742 DOI: 10.1016/j.arr.2024.102428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 07/05/2024] [Accepted: 07/15/2024] [Indexed: 07/24/2024]
Abstract
Macroautophagy/autophagy is primarily accountable for the degradation of damaged organelles and toxic macromolecules in the cells. Regarding the essential function of autophagy for preserving cellular homeostasis, changes in, or dysfunction of, autophagy flux can lead to disease development. In the current paper, the complicated function of autophagy in aging-associated pathologies and cancer is evaluated, highlighting the underlying molecular mechanisms that can affect longevity and disease pathogenesis. As a natural biological process, a reduction in autophagy is observed with aging, resulting in an accumulation of cell damage and the development of different diseases, including neurological disorders, cardiovascular diseases, and cancer. The MTOR, AMPK, and ATG proteins demonstrate changes during aging, and they are promising therapeutic targets. Insulin/IGF1, TOR, PKA, AKT/PKB, caloric restriction and mitochondrial respiration are vital for lifespan regulation and can modulate or have an interaction with autophagy. The specific types of autophagy, such as mitophagy that degrades mitochondria, can regulate aging by affecting these organelles and eliminating those mitochondria with genomic mutations. Autophagy and its specific types contribute to the regulation of carcinogenesis and they are able to dually enhance or decrease cancer progression. Cancer hallmarks, including proliferation, metastasis, therapy resistance and immune reactions, are tightly regulated by autophagy, supporting the conclusion that autophagy is a promising target in cancer therapy.
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Affiliation(s)
- Na Wu
- Department of Infectious Diseases, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Wenhui Zheng
- Department of Anesthesiology, The Shengjing Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Yundong Zhou
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang 315040, China
| | - Yu Tian
- School of Public Health, Benedictine University, No.5700 College Road, Lisle, IL 60532, USA; Research Center, the Huizhou Central People's Hospital, Guangdong Medical University, Huizhou, Guangdong, China
| | - Min Tang
- Department of Oncology, Chongqing General Hospital, Chongqing University, Chongqing 401120, China
| | - Xiaoqiang Feng
- Center of Stem Cell and Regenerative Medicine, Gaozhou People's Hospital, Gaozhou, Guangdong 525200, China
| | - Milad Ashrafizadeh
- Department of Radiation Oncology, Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong 250000, China; Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Yuzhuo Wang
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC V6H3Z6, Canada
| | - Xiaojia Niu
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC V6H3Z6, Canada
| | - Murtaza Tambuwala
- Lincoln Medical School, University of Lincoln, Brayford Pool Campus, Lincoln LN6 7TS, UK
| | - Lingzhi Wang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 16 Medical Drive, Singapore 117600, Singapore
| | - Vinay Tergaonkar
- Laboratory of NF-κB Signalling, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A⁎STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 16 Medical Drive, Singapore 117600, Singapore; NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore.
| | - Daniel Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.
| | - Li Huang
- Center of Stem Cell and Regenerative Medicine, Gaozhou People's Hospital, Gaozhou, Guangdong 525200, China.
| | - Ming Gu
- Department of Breast Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China.
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31
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Jin C, Hu W, Wang Y, Wu H, Zeng S, Ying M, Hu X. Deciphering the interaction between PKM2 and the built-in thermodynamic properties of the glycolytic pathway in cancer cells. J Biol Chem 2024; 300:107648. [PMID: 39121998 PMCID: PMC11402776 DOI: 10.1016/j.jbc.2024.107648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/24/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Most cancer cells exhibit high glycolysis rates under conditions of abundant oxygen. Maintaining a stable glycolytic rate is critical for cancer cell growth as it ensures sufficient conversion of glucose carbons to energy, biosynthesis, and redox balance. Here we deciphered the interaction between PKM2 and the thermodynamic properties of the glycolytic pathway. Knocking down or knocking out PKM2 induced a thermodynamic equilibration in the glycolytic pathway, characterized by the reciprocal changes of the Gibbs free energy (ΔG) of the reactions catalyzed by PFK1 and PK, leading to a less exergonic PFK1-catalyzed reaction and a more exergonic PK-catalyzed reaction. The changes in the ΔGs of the two reactions cause the accumulation of intermediates, including the substrate PEP (the substrate of PK), in the segment between PFK1 and PK. The increased concentration of PEP in turn increased PK activity in the glycolytic pathway. Thus, the interaction between PKM2 and the thermodynamic properties of the glycolytic pathway maintains the reciprocal relationship between PK concentration and its substrate PEP concentration, by which, PK activity in the glycolytic pathway can be stabilized and effectively counteracts the effect of PKM2 KD or KO on glycolytic rate. In line with our previous reports, this study further validates the roles of the thermodynamics of the glycolytic pathway in stabilizing glycolysis in cancer cells. Deciphering the interaction between glycolytic enzymes and the thermodynamics of the glycolytic pathway will promote a better understanding of the flux control of glycolysis in cancer cells.
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Affiliation(s)
- Chengmeng Jin
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Province Key Laboratory of Molecular Biology in Medical Sciences, Hangzhou, Zhejiang, China; Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, Zhejiang, China; Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Hu
- Center for Nutrition & Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Saint Lucia, Queensland, Australia
| | - Yuqi Wang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hao Wu
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Province Key Laboratory of Molecular Biology in Medical Sciences, Hangzhou, Zhejiang, China; Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, Zhejiang, China; Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Siying Zeng
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Minfeng Ying
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Province Key Laboratory of Molecular Biology in Medical Sciences, Hangzhou, Zhejiang, China; Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, Zhejiang, China; Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Xun Hu
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Province Key Laboratory of Molecular Biology in Medical Sciences, Hangzhou, Zhejiang, China; Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, Zhejiang, China; Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China.
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32
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Wang RH, Chen PR, Chen YT, Chen YC, Chu YH, Chien CC, Chien PC, Lo SY, Wang ZL, Tsou MC, Chen SY, Chiu GS, Chen WL, Wu YH, Wang LHC, Wang WC, Lin SY, Kung HJ, Wang LH, Cheng HC, Lin KT. Hydrogen sulfide coordinates glucose metabolism switch through destabilizing tetrameric pyruvate kinase M2. Nat Commun 2024; 15:7463. [PMID: 39198443 PMCID: PMC11358145 DOI: 10.1038/s41467-024-51875-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 08/20/2024] [Indexed: 09/01/2024] Open
Abstract
Most cancer cells reprogram their glucose metabolic pathway from oxidative phosphorylation to aerobic glycolysis for energy production. By reducing enzyme activity of pyruvate kinase M2 (PKM2), cancer cells attain a greater fraction of glycolytic metabolites for macromolecule synthesis needed for rapid proliferation. Here we demonstrate that hydrogen sulfide (H2S) destabilizes the PKM2 tetramer into monomer/dimer through sulfhydration at cysteines, notably at C326, leading to reduced PKM2 enzyme activity and increased PKM2-mediated transcriptional activation. Blocking PKM2 sulfhydration at C326 through amino acid mutation stabilizes the PKM2 tetramer and crystal structure further revealing the tetramer organization of PKM2-C326S. The PKM2-C326S mutant in cancer cells rewires glucose metabolism to mitochondrial respiration, significantly inhibiting tumor growth. In this work, we demonstrate that PKM2 sulfhydration by H2S inactivates PKM2 activity to promote tumorigenesis and inhibiting this process could be a potential therapeutic approach for targeting cancer metabolism.
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Grants
- National Science and Technology Council (Taiwan), 108-2314-B-007-003-MY3, 111-2320-B-007-005-MY3; National Tsing Hua University (NTHU), 111Q2713E1, 112Q2511E1, and 112Q2521E1, 113Q2524E1.
- National Science and Technology Council (Taiwan), 110-2320-B-007-004-MY3; National Health Research Institutes (Taiwan), NHRI-EX113-11124BI. National Tsing Hua University (NTHU), 112QI033E1
- National Science and Technology Council (Taiwan),110-2320-B-039-066; Ministry of Education (Taiwan), CMRC-CENTER-0
- National Science and Technology Council (Taiwan), 108-2311-B-007-002-MY3, 111-2311-B-007-009
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Affiliation(s)
- Rong-Hsuan Wang
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Pin-Ru Chen
- Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Yue-Ting Chen
- Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Yi-Chang Chen
- Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Yu-Hsin Chu
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Chia-Chen Chien
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Po-Chen Chien
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Shao-Yun Lo
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Zhong-Liang Wang
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Min-Chen Tsou
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Ssu-Yu Chen
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Guang-Shen Chiu
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Wen-Ling Chen
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Yi-Hsuan Wu
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Lily Hui-Ching Wang
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
- Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan
- School of Medicine, National Tsing Hua University, Hsinchu, Taiwan
| | - Wen-Ching Wang
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
- Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Shu-Yi Lin
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, Taiwan
| | - Hsing-Jien Kung
- College of Medical Science and Technology, PhD Program for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
| | - Lu-Hai Wang
- Chiese Medicine Research Center, and Institute of Integrated Medicine, China Medical University, Taichung City, Taiwan.
| | - Hui-Chun Cheng
- Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan.
- Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan.
| | - Kai-Ti Lin
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan.
- Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan.
- Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan.
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Wang H, Li X, Zhang Q, Fu C, Jiang W, Xue J, Liu S, Meng Q, Ai L, Zhi X, Deng S, Liang W. Autophagy in Disease Onset and Progression. Aging Dis 2024; 15:1646-1671. [PMID: 37962467 PMCID: PMC11272186 DOI: 10.14336/ad.2023.0815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 08/15/2023] [Indexed: 11/15/2023] Open
Abstract
Autophagy is a biological phenomenon whereby components of cells can self-degrade using autophagosomes. During this process, cells can clear dysfunctional organelles or unwanted elements. Autophagy can recycle unnecessary biomolecules into new components or sometimes, even destroy the cells themselves. This cellular process was first observed in 1962 by Keith R. Porter et al. Since then, autophagy has been studied for over 60 years, and much has been learned on the topic. Nevertheless, the process is still not fully understood. It has been proven, for example, that autophagy can be a positive force for maintaining good health by removing older or damaged cells. By contrast, autophagy is also involved in the onset and progression of various conditions caused by pathogenic infections. These diseases generally involve several important organs in the human body, including the liver, kidney, heart, and central nervous system. The regulation of the defects of autophagy defects may potentially be used to treat some diseases. This review comprehensively discusses recent research frontiers and topics of interest regarding autophagy-related diseases.
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Affiliation(s)
- Hao Wang
- Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, Guangdong, China.
| | - Xiushen Li
- Department of Obstetrics and Gynecology, Shenzhen University General Hospital, Shenzhen, Guangdong, China.
| | - Qi Zhang
- Department of Obstetrics and Gynecology, Shenzhen University General Hospital, Shenzhen, Guangdong, China.
| | - Chengtao Fu
- School of Medicine, Huzhou University, Zhejiang, China.
| | - Wenjie Jiang
- Department of Artificial Intelligence and Data Science, Hebei University of Technology, Tianjin, China.
| | - Jun Xue
- Department of General Surgery, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei, China.
| | - Shan Liu
- Bioimaging Core of Shenzhen Bay Laboratory Shenzhen, China.
| | - Qingxue Meng
- Technology Department, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei, China.
| | - Lisha Ai
- Department of Teaching and Research, Shenzhen University General Hospital, Shenzhen, Guangdong, China.
| | - Xuejun Zhi
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei, China.
| | - Shoulong Deng
- National Health Commission of China (NHC) Key Laboratory of Human Disease Comparative Medicine, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, China.
| | - Weizheng Liang
- Central Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei, China.
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Ni X, Lu CP, Xu GQ, Ma JJ. Transcriptional regulation and post-translational modifications in the glycolytic pathway for targeted cancer therapy. Acta Pharmacol Sin 2024; 45:1533-1555. [PMID: 38622288 PMCID: PMC11272797 DOI: 10.1038/s41401-024-01264-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 03/08/2024] [Indexed: 04/17/2024]
Abstract
Cancer cells largely rely on aerobic glycolysis or the Warburg effect to generate essential biomolecules and energy for their rapid growth. The key modulators in glycolysis including glucose transporters and enzymes, e.g. hexokinase 2, enolase 1, pyruvate kinase M2, lactate dehydrogenase A, play indispensable roles in glucose uptake, glucose consumption, ATP generation, lactate production, etc. Transcriptional regulation and post-translational modifications (PTMs) of these critical modulators are important for signal transduction and metabolic reprogramming in the glycolytic pathway, which can provide energy advantages to cancer cell growth. In this review we recapitulate the recent advances in research on glycolytic modulators of cancer cells and analyze the strategies targeting these vital modulators including small-molecule inhibitors and microRNAs (miRNAs) for targeted cancer therapy. We focus on the regulation of the glycolytic pathway at the transcription level (e.g., hypoxia-inducible factor 1, c-MYC, p53, sine oculis homeobox homolog 1, N6-methyladenosine modification) and PTMs (including phosphorylation, methylation, acetylation, ubiquitination, etc.) of the key regulators in these processes. This review will provide a comprehensive understanding of the regulation of the key modulators in the glycolytic pathway and might shed light on the targeted cancer therapy at different molecular levels.
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Affiliation(s)
- Xuan Ni
- Department of Pharmacy, The Fourth Affiliated Hospital of Soochow University, Suzhou Dushu Lake Hospital, Medical Center of Soochow University, Suzhou, 215123, China
| | - Cheng-Piao Lu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou Key Laboratory of Drug Research for Prevention and Treatment of Hyperlipidemic Diseases, Soochow University, Suzhou, 215123, China
| | - Guo-Qiang Xu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou Key Laboratory of Drug Research for Prevention and Treatment of Hyperlipidemic Diseases, Soochow University, Suzhou, 215123, China.
- Suzhou International Joint Laboratory for Diagnosis and Treatment of Brain Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.
- MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College of Soochow University, Suzhou, 215123, China.
| | - Jing-Jing Ma
- Department of Pharmacy, The Fourth Affiliated Hospital of Soochow University, Suzhou Dushu Lake Hospital, Medical Center of Soochow University, Suzhou, 215123, China.
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Singla P, Jain A. Deciphering the complex landscape of post-translational modifications on PKM2: Implications in head and neck cancer pathogenesis. Life Sci 2024; 349:122719. [PMID: 38759866 DOI: 10.1016/j.lfs.2024.122719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/03/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
In the vast landscape of human health, head and neck cancer (HNC) poses a significant health burden globally, necessitating the exploration of novel diagnostics and therapeutics. Metabolic alterations occurring within tumor microenvironment are crucial to understand the foundational cause of HNC. Post-translational modifications (PTMs) have recently emerged as a silent foe exerting a significantly heightened influence on various aspects of the biological processes associated with the onset and advancement of cancer, particularly in the context of HNC. There are numerous targets involved in HNC but recently, the enzyme pyruvate kinase M2 (PKM2) has come out as a hot target due to its involvement in glycolysis resulting in metabolic reprogramming of cancer cells. Various PTMs have been reported to affect the structure and function of PKM2 by modulating its activity. This review aims to investigate the impact of PTMs on the interaction between PKM2 and several signaling pathways and transcription factors in the context of HNC. These interactions possess significant ramification for cellular proliferation, apoptosis, angiogenesis and metastasis. This review primarily explores the role of PTMs influencing PKM2 and its involvement in tumor development. While acknowledging the significance of PKM2 interactions with other tumor regulators, the emphasis lies on dissecting PTM-related mechanisms rather than solely scrutinizing individual regulators. It lays the framework for the development of more sophisticated diagnostic tools and uncovers exciting possibilities for precision medicine essential for effectively addressing the complexity of this malignancy in a precise and focused manner.
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Affiliation(s)
- Palak Singla
- Department of Bioengineering and Biotechnology, Birla Institute of Technology Mesra, Ranchi 835215, Jharkhand, India
| | - Alok Jain
- Department of Bioengineering and Biotechnology, Birla Institute of Technology Mesra, Ranchi 835215, Jharkhand, India.
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Guo J, Nie J, Li D, Zhang H, Zhao T, Zhang S, Ma L, Lu J, Ji H, Li S, Tao S, Xu B. The role of NAD-dependent deacetylase sirtuin-2 in liver metabolic stress through regulating pyruvate kinase M2 ubiquitination. J Transl Med 2024; 22:656. [PMID: 39004743 PMCID: PMC11247741 DOI: 10.1186/s12967-024-05435-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 06/22/2024] [Indexed: 07/16/2024] Open
Abstract
NAD-dependent deacetylase Sirt2 is involved in mammalian metabolic activities, matching energy demand with energy production and expenditure, and is relevant to a variety of metabolic diseases. Here, we constructed Sirt2 knockout and adeno-associated virus overexpression mice and found that deletion of hepatic Sirt2 accelerated primary obesity and insulin resistance in mice with concomitant hepatic metabolic dysfunction. However, the key targets of Sirt2 are unknown. We identified the M2 isoform of pyruvate kinase (PKM2) as a key Sirt2 target involved in glycolysis in metabolic stress. Through yeast two-hybrid and mass spectrometry combined with multi-omics analysis, we identified candidate acetylation modification targets of Sirt2 on PKM2 lysine 135 (K135). The Sirt2-mediated deacetylation-ubiquitination switch of PKM2 regulated the development of glycolysis. Here, we found that Sirt2 deficiency led to impaired glucose tolerance and insulin resistance and induced primary obesity. Sirt2 severely disrupted liver function in mice under metabolic stress, exacerbated the metabolic burden on the liver, and affected glucose metabolism. Sirt2 underwent acetylation modification of lysine 135 of PKM2 through a histidine 187 enzyme active site-dependent effect and reduced ubiquitination of the K48 ubiquitin chain of PKM2. Our findings reveal that the hepatic glucose metabolism links nutrient state to whole-body energetics through the rhythmic regulation of Sirt2.
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Affiliation(s)
- Jingru Guo
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Junshu Nie
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Dongni Li
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Huaixiu Zhang
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Tianrui Zhao
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Shoufeng Zhang
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Li Ma
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Jingjing Lu
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Hong Ji
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Shize Li
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Sha Tao
- The University of Georgia, Athens, GA, USA
| | - Bin Xu
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China.
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Bie J, Li R, Li Y, Song C, Chen Z, Zhang T, Tang Z, Su L, Zhu L, Wang J, Wan Y, Chen J, Liu X, Li T, Luo J. PKM2 aggregation drives metabolism reprograming during aging process. Nat Commun 2024; 15:5761. [PMID: 38982055 PMCID: PMC11233639 DOI: 10.1038/s41467-024-50242-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/04/2024] [Indexed: 07/11/2024] Open
Abstract
While protein aggregation's association with aging and age-related diseases is well-established, the specific proteins involved and whether dissolving them could alleviate aging remain unclear. Our research addresses this gap by uncovering the role of PKM2 aggregates in aging. We find that PKM2 forms aggregates in senescent cells and organs from aged mice, impairing its enzymatic activity and glycolytic flux, thereby driving cells into senescence. Through a rigorous two-step small molecule library screening, we identify two compounds, K35 and its analog K27, capable of dissolving PKM2 aggregates and alleviating senescence. Further experiments show that treatment with K35 and K27 not only alleviate aging-associated signatures but also extend the lifespan of naturally and prematurely aged mice. These findings provide compelling evidence for the involvement of PKM2 aggregates in inducing cellular senescence and aging phenotypes, and suggest that targeting these aggregates could be a promising strategy for anti-aging drug discovery.
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Affiliation(s)
- Juntao Bie
- Department of Medical Genetics, Center for Medical Genetics, Peking University Health Science Center, Beijing, 100191, China
- Medical Innovation Center (Taizhou) of Peking University, Taizhou, 225316, China
| | - Ridong Li
- Institute of Systems Biomedicine, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Yutong Li
- Department of Medical Genetics, Center for Medical Genetics, Peking University Health Science Center, Beijing, 100191, China
| | - Chen Song
- Department of Medical Genetics, Center for Medical Genetics, Peking University Health Science Center, Beijing, 100191, China
| | - Zhaoming Chen
- Department of Biochemistry and Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Tianzhuo Zhang
- Department of Anesthesiology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Zhiheng Tang
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Li Su
- Peking university medical and health analysis center, Beijing, 100191, China
| | - Liangyi Zhu
- Department of Pathology, School of Basic Medical Sciences, Peking University Third Hospital, Peking University Health Science Center, Beijing, 100191, China
| | - Jiaxin Wang
- Neuroscience Research Institute, Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - You Wan
- Neuroscience Research Institute, Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
- Key Laboratory for Neuroscience, Ministry of Education/National Health Commission of China, Peking University, Beijing, 100191, China
| | - Jun Chen
- Peking University Research Center on Aging, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Department of Biochemistry and Biophysics, School of Basic Medical Science, Peking University, Beijing, 100191, China.
| | - Xiaoyun Liu
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
- NHC Key Laboratory of Medical Immunology, Peking University, Beijing, 100191, China.
| | - Tingting Li
- Department of Biochemistry and Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
- Key Laboratory for Neuroscience, Ministry of Education/National Health Commission of China, Peking University, Beijing, 100191, China.
| | - Jianyuan Luo
- Department of Medical Genetics, Center for Medical Genetics, Peking University Health Science Center, Beijing, 100191, China.
- Medical Innovation Center (Taizhou) of Peking University, Taizhou, 225316, China.
- Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Department of Biochemistry and Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
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38
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Zhou Z, Zheng X, Zhao J, Yuan A, Lv Z, Shao G, Peng B, Dong MQ, Xu Q, Xu X, Li J. ULK1-dependent phosphorylation of PKM2 antagonizes O-GlcNAcylation and regulates the Warburg effect in breast cancer. Oncogene 2024; 43:1769-1778. [PMID: 38632437 DOI: 10.1038/s41388-024-03035-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 04/19/2024]
Abstract
Pyruvate kinase M2 (PKM2) is a central metabolic enzyme driving the Warburg effect in tumor growth. Previous investigations have demonstrated that PKM2 is subject to O-linked β-N-acetylglucosamine (O-GlcNAc) modification, which is a nutrient-sensitive post-translational modification. Here we found that unc-51 like autophagy activating kinase 1 (ULK1), a glucose-sensitive kinase, interacts with PKM2 and phosphorylates PKM2 at Ser333. Ser333 phosphorylation antagonizes PKM2 O-GlcNAcylation, promotes its tetramer formation and enzymatic activity, and decreases its nuclear localization. As PKM2 is known to have a nuclear role in regulating c-Myc, we also show that PKM2-S333 phosphorylation inhibits c-Myc expression. By downregulating glucose consumption and lactate production, PKM2 pS333 attenuates the Warburg effect. Through mouse xenograft assays, we demonstrate that the phospho-deficient PKM2-S333A mutant promotes tumor growth in vivo. In conclusion, we identified a ULK1-PKM2-c-Myc axis in inhibiting breast cancer, and a glucose-sensitive phosphorylation of PKM2 in modulating the Warburg effect.
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Affiliation(s)
- Zibin Zhou
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Xiyuan Zheng
- Guangdong Key Laboratory for Genome Stability & Disease Prevention and Carson International Cancer Center and Marshall Laboratory of Biomedical Engineering, Shenzhen University School of Medicine, Shenzhen, Guangdong, 518060, China
| | - Jianxin Zhao
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Aiyun Yuan
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Zhuan Lv
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Guangcan Shao
- National Institute of Biological Sciences, Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 102206, China
| | - Bin Peng
- Guangdong Key Laboratory for Genome Stability & Disease Prevention and Carson International Cancer Center and Marshall Laboratory of Biomedical Engineering, Shenzhen University School of Medicine, Shenzhen, Guangdong, 518060, China
| | - Meng-Qiu Dong
- National Institute of Biological Sciences, Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 102206, China
| | - Quan Xu
- Department of Rehabilitation Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, 102218, China.
| | - Xingzhi Xu
- Guangdong Key Laboratory for Genome Stability & Disease Prevention and Carson International Cancer Center and Marshall Laboratory of Biomedical Engineering, Shenzhen University School of Medicine, Shenzhen, Guangdong, 518060, China.
| | - Jing Li
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing, 100048, China.
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39
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Dai E, Wang W, Li Y, Ye D, Li Y. Lactate and lactylation: Behind the development of tumors. Cancer Lett 2024; 591:216896. [PMID: 38641309 DOI: 10.1016/j.canlet.2024.216896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/13/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
There is growing evidence that lactate can have a wide range of biological impacts in addition to being a waste product of metabolism. Because of the Warburg effect, tumors generate lots of lactate, which create a tumor microenvironment (TME) with low nutrition, hypoxia, and low pH. As a result, the immunosuppressive network is established to gain immune escape potential and regulate tumor growth. Consequently, the tumor lactate pathway is emerging as a possible therapeutic target for tumor. Importantly, Zhao et al. first discovered histone lysine lactylation (Kla) in 2019, which links gene regulation to cell metabolism through dysmetabolic activity and epigenetic modifications, influencing TME and tumor development. Therefore, the aim of this paper is to explore the effects of lactate and lactylation on the TME and tumors, and provide theoretical basis for further research on potential therapeutic targets and biomarkers, with the view to providing new ideas and methods for tumor treatment and prognosis evaluation.
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Affiliation(s)
- Enci Dai
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 650 Xinsongjiang Road, Shanghai, 201600, China.
| | - Wei Wang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 650 Xinsongjiang Road, Shanghai, 201600, China.
| | - Yingying Li
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 650 Xinsongjiang Road, Shanghai, 201600, China.
| | - Defeng Ye
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Hongkou District, Shanghai, 200080, China.
| | - Yanli Li
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 650 Xinsongjiang Road, Shanghai, 201600, China.
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40
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Zhang C, Huang Z. KAT2A Promotes the Succinylation of PKM2 to Inhibit its Activity and Accelerate Glycolysis of Gastric Cancer. Mol Biotechnol 2024; 66:1446-1457. [PMID: 37294531 DOI: 10.1007/s12033-023-00778-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/21/2023] [Indexed: 06/10/2023]
Abstract
Gastric cancer (GC) is one of the main causes of cancer-related death. Lysine acetyltransferases 2 A (KAT2A) is a succinyltransferase that plays an essential role in cancer development. The pyruvate kinase M2 (PKM2) is a glycolysis rate-limiting enzyme that mediates the glycolysis of cancers. This study aimed to explore the effects and mechanism of KAT2A in GC progression. The effects of biological behaviors of GC cells were evaluated by MTT, colony formation and seahorse assays. The succinylation modification was assessed by immunoprecipitation (IP). The interaction between proteins were detected by Co-IP and immunofluorescence. A pyruvate kinase activity detection kit was used to evaluate the activity of PKM2. Western blot was performed to detect the expression and oligomerization of protein. Herein, we confirmed that KAT2A was highly expressed in GC tissues and was associated with a poor prognosis. Function studies showed that knockdown of KAT2A inhibited cell proliferation and glycolytic metabolism of GC. Mechanistically, KAT2A could directly interacted with PKM2 and KAT2A silencing inhibited the succinylation of PKM2 at K475 site. In addition, the succinylation of PKM2 altered its activity rather than its protein levels. Rescue experiments showed that KAT2A promoted GC cell growth, glycolysis, and tumor growth by promoting PKM2 K475 succinylation. Taken together, KAT2A promotes the succinylation of PKM2 at K475 to inhibit PKM2 activity, thus promotes the progression of GC. Therefore, targeting KATA2 and PKM2 may provide novel strategies for the treatment of GC.
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Affiliation(s)
- Chengpeng Zhang
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China
- Department of General Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zonghai Huang
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China.
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41
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Jia Q, Li J, Guo X, Li Y, Wu Y, Peng Y, Fang Z, Zhang X. Neuroprotective effects of chaperone-mediated autophagy in neurodegenerative diseases. Neural Regen Res 2024; 19:1291-1298. [PMID: 37905878 PMCID: PMC11467915 DOI: 10.4103/1673-5374.385848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/30/2023] [Accepted: 07/17/2023] [Indexed: 11/02/2023] Open
Abstract
ABSTRACT Chaperone-mediated autophagy is one of three types of autophagy and is characterized by the selective degradation of proteins. Chaperone-mediated autophagy contributes to energy balance and helps maintain cellular homeostasis, while providing nutrients and support for cell survival. Chaperone-mediated autophagy activity can be detected in almost all cells, including neurons. Owing to the extreme sensitivity of neurons to their environmental changes, maintaining neuronal homeostasis is critical for neuronal growth and survival. Chaperone-mediated autophagy dysfunction is closely related to central nervous system diseases. It has been shown that neuronal damage and cell death are accompanied by chaperone-mediated autophagy dysfunction. Under certain conditions, regulation of chaperone-mediated autophagy activity attenuates neurotoxicity. In this paper, we review the changes in chaperone-mediated autophagy in neurodegenerative diseases, brain injury, glioma, and autoimmune diseases. We also summarize the most recent research progress on chaperone-mediated autophagy regulation and discuss the potential of chaperone-mediated autophagy as a therapeutic target for central nervous system diseases.
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Affiliation(s)
- Qi Jia
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, The Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Jin Li
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, The Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Department of Critical Care Medicine, Air Force Medical Center, Beijing, China
| | - Xiaofeng Guo
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, The Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Yi Li
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, The Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - You Wu
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, The Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Yuliang Peng
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, The Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Zongping Fang
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, The Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xijing Zhang
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, The Fourth Military Medical University, Xi’an, Shaanxi Province, China
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Wang Y, Shu H, Qu Y, Jin X, Liu J, Peng W, Wang L, Hao M, Xia M, Zhao Z, Dong K, Di Y, Tian M, Hao F, Xia C, Zhang W, Ba X, Feng Y, Wei M. PKM2 functions as a histidine kinase to phosphorylate PGAM1 and increase glycolysis shunts in cancer. EMBO J 2024; 43:2368-2396. [PMID: 38750259 PMCID: PMC11183095 DOI: 10.1038/s44318-024-00110-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 06/19/2024] Open
Abstract
Phosphoglycerate mutase 1 (PGAM1) is a key node enzyme that diverts the metabolic reactions from glycolysis into its shunts to support macromolecule biosynthesis for rapid and sustainable cell proliferation. It is prevalent that PGAM1 activity is upregulated in various tumors; however, the underlying mechanism remains unclear. Here, we unveil that pyruvate kinase M2 (PKM2) moonlights as a histidine kinase in a phosphoenolpyruvate (PEP)-dependent manner to catalyze PGAM1 H11 phosphorylation, that is essential for PGAM1 activity. Moreover, monomeric and dimeric but not tetrameric PKM2 are efficient to phosphorylate and activate PGAM1. In response to epidermal growth factor signaling, Src-catalyzed PGAM1 Y119 phosphorylation is a prerequisite for PKM2 binding and the subsequent PGAM1 H11 phosphorylation, which constitutes a discrepancy between tumor and normal cells. A PGAM1-derived pY119-containing cell-permeable peptide or Y119 mutation disrupts the interaction of PGAM1 with PKM2 and PGAM1 H11 phosphorylation, dampening the glycolysis shunts and tumor growth. Together, these results identify a function of PKM2 as a histidine kinase, and illustrate the importance of enzyme crosstalk as a regulatory mode during metabolic reprogramming and tumorigenesis.
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Affiliation(s)
- Yang Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Hengyao Shu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Yanzhao Qu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Xin Jin
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Jia Liu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Wanting Peng
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Lihua Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Miao Hao
- Science Research Center, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, 130033, Changchun, Jilin, China
| | - Mingjie Xia
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Zhexuan Zhao
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Kejian Dong
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Yao Di
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Miaomiao Tian
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Fengqi Hao
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Chaoyi Xia
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Wenxia Zhang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China
| | - Xueqing Ba
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China.
| | - Yunpeng Feng
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China.
| | - Min Wei
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, 5268 Renmin Street, 130024, Changchun, Jilin, China.
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Teixeira ABDS, Ramalho MCC, de Souza I, de Andrade IAM, Osawa IYA, Guedes CB, de Oliveira BS, de Souza CHD, da Silva TL, Moreno NC, Latancia MT, Rocha CRR. The role of chaperone-mediated autophagy in drug resistance. Genet Mol Biol 2024; 47:e20230317. [PMID: 38829285 PMCID: PMC11145944 DOI: 10.1590/1678-4685-gmb-2023-0317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 04/19/2024] [Indexed: 06/05/2024] Open
Abstract
In the search for alternatives to overcome the challenge imposed by drug resistance development in cancer treatment, the modulation of autophagy has emerged as a promising alternative that has achieved good results in clinical trials. Nevertheless, most of these studies have overlooked a novel and selective type of autophagy: chaperone-mediated autophagy (CMA). Following its discovery, research into CMA's contribution to tumor progression has accelerated rapidly. Therefore, we now understand that stress conditions are the primary signal responsible for modulating CMA in cancer cells. In turn, the degradation of proteins by CMA can offer important advantages for tumorigenesis, since tumor suppressor proteins are CMA targets. Such mutual interaction between the tumor microenvironment and CMA also plays a crucial part in establishing therapy resistance, making this discussion the focus of the present review. Thus, we highlight how suppression of LAMP2A can enhance the sensitivity of cancer cells to several drugs, just as downregulation of CMA activity can lead to resistance in certain cases. Given this panorama, it is important to identify selective modulators of CMA to enhance the therapeutic response.
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Affiliation(s)
- Ana Beatriz da Silva Teixeira
- Universidade Federal de São Paulo (UNIFESP), Departamento de
Oncologia Clínica e Experimental, São Paulo, SP, Brazil
| | - Maria Carolina Clares Ramalho
- Universidade Federal de São Paulo (UNIFESP), Departamento de
Oncologia Clínica e Experimental, São Paulo, SP, Brazil
| | - Izadora de Souza
- Universidade Federal de São Paulo (UNIFESP), Departamento de
Oncologia Clínica e Experimental, São Paulo, SP, Brazil
| | | | - Isabeli Yumi Araújo Osawa
- Universidade Federal de São Paulo (UNIFESP), Departamento de
Oncologia Clínica e Experimental, São Paulo, SP, Brazil
| | - Camila Banca Guedes
- Universidade Federal de São Paulo (UNIFESP), Departamento de
Oncologia Clínica e Experimental, São Paulo, SP, Brazil
| | - Beatriz Silva de Oliveira
- Universidade Federal de São Paulo (UNIFESP), Departamento de
Oncologia Clínica e Experimental, São Paulo, SP, Brazil
| | | | - Tainá Lins da Silva
- Universidade Federal de São Paulo (UNIFESP), Departamento de
Oncologia Clínica e Experimental, São Paulo, SP, Brazil
| | - Natália Cestari Moreno
- National Institutes of Health, National Institute of Child Health
and Human Development, Laboratory of Genomic Integrity, Bethesda, MD, USA
| | - Marcela Teatin Latancia
- National Institutes of Health, National Institute of Child Health
and Human Development, Laboratory of Genomic Integrity, Bethesda, MD, USA
| | - Clarissa Ribeiro Reily Rocha
- Universidade Federal de São Paulo (UNIFESP), Departamento de
Oncologia Clínica e Experimental, São Paulo, SP, Brazil
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Ren C, Li X, Li J, Huang X, Bai Y, Schroyen M, Hou C, Wang Z, Zhang D. Acetylation and Phosphorylation Regulate the Role of Pyruvate Kinase as a Glycolytic Enzyme or a Protein Kinase in Lamb. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:11724-11732. [PMID: 38718268 DOI: 10.1021/acs.jafc.4c00082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
Protein post-translational modifications (PTMs) play an essential role in meat quality development. However, the effect of specific PTM sites on meat proteins has not been investigated yet. The characteristics of pyruvate kinase M (PKM) were found to exhibit a close correlation with final meat quality, and thus, serine 99 (S99) and lysine 137 (K137) in PKM were mutated to study their effect on PKM function. The structural and functional properties of five lamb PKM variants, including wild-type PKM (wtPKM), PKM_S99D (S99 phosphorylation), PKM_S99A (PKM S99 dephosphorylation), PKM_K137Q (PKM K137 acetylation), and PKM_K137R (PKM K137 deacetylation), were evaluated. The results showed that the secondary structure, tertiary structure, and polymer formation were affected among different PKM variants. In addition, the glycolytic activity of PKM_K137Q was decreased because of its weakened binding with phosphoenolpyruvate. In the PKM_K137R variant, the actin phosphorylation level exhibited a decrease, suggesting a low kinase activity of PKM_K137R. The results of molecular simulation showed a 42% reduction in the interface area between PKM_K137R and actin, in contrast to wtPKM and actin. These findings are significant for revealing the mechanism of how PTMs regulate PKM function and provide a theoretical foundation for the development of precise meat quality preservation technology.
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Affiliation(s)
- Chi Ren
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, P. R. China
- Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés 2, Gembloux 5030, Belgium
| | - Xin Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, P. R. China
| | - Juan Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, P. R. China
| | - Xiaolan Huang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, P. R. China
| | - Yuqiang Bai
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, P. R. China
| | - Martine Schroyen
- Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés 2, Gembloux 5030, Belgium
| | - Chengli Hou
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, P. R. China
| | - Zhenyu Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, P. R. China
| | - Dequan Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, P. R. China
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45
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Gan PR, Wu H, Zhu YL, Shu Y, Wei Y. Glycolysis, a driving force of rheumatoid arthritis. Int Immunopharmacol 2024; 132:111913. [PMID: 38603855 DOI: 10.1016/j.intimp.2024.111913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/12/2024] [Accepted: 03/20/2024] [Indexed: 04/13/2024]
Abstract
Resident synoviocytes and synovial microvasculature, together with immune cells from circulation, contribute to pannus formation, the main pathological feature of rheumatoid arthritis (RA), leading to destruction of adjacent cartilage and bone. Seeds, fibroblast-like synoviocytes (FLSs), macrophages, dendritic cells (DCs), B cells, T cells and endothelial cells (ECs) seeds with high metabolic demands undergo metabolic reprogramming from oxidative phosphorylation to glycolysis in response to poor soil of RA synovium with hypoxia, nutrient deficiency and inflammatory stimuli. Glycolysis provides rapid energy supply and biosynthetic precursors to support pathogenic growth of these seeds. The metabolite lactate accumulated during this process in turn condition the soil microenvironment and affect seeds growth by modulating signalling pathways and directing lactylation modifications. This review explores in depth the survival mechanism of seeds with high metabolic demands in the poor soil of RA synovium, providing useful support for elucidating the etiology of RA. In addition, we discuss the role and major post-translational modifications of proteins and enzymes linked to glycolysis to inspire the discovery of novel anti-rheumatic targets.
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Affiliation(s)
- Pei-Rong Gan
- College of Pharmacy, Anhui University of Chinese Medicine, Qian Jiang Road 1, Hefei 230012, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, China
| | - Hong Wu
- College of Pharmacy, Anhui University of Chinese Medicine, Qian Jiang Road 1, Hefei 230012, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, China.
| | - Yu-Long Zhu
- College of Pharmacy, Anhui University of Chinese Medicine, Qian Jiang Road 1, Hefei 230012, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, China
| | - Yin Shu
- College of Pharmacy, Anhui University of Chinese Medicine, Qian Jiang Road 1, Hefei 230012, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, China
| | - Yi Wei
- College of Pharmacy, Anhui University of Chinese Medicine, Qian Jiang Road 1, Hefei 230012, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, China
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46
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Qian C, Zhou Y, Zhang T, Dong G, Song M, Tang Y, Wei Z, Yu S, Shen Q, Chen W, Choi JP, Yan J, Zhong C, Wan L, Li J, Wang A, Lu Y, Zhao Y. Targeting PKM2 signaling cascade with salvianic acid A normalizes tumor blood vessels to facilitate chemotherapeutic drug delivery. Acta Pharm Sin B 2024; 14:2077-2096. [PMID: 38799619 PMCID: PMC11121179 DOI: 10.1016/j.apsb.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/22/2024] [Accepted: 02/02/2024] [Indexed: 05/29/2024] Open
Abstract
Aberrant tumor blood vessels are prone to propel the malignant progression of tumors, and targeting abnormal metabolism of tumor endothelial cells emerges as a promising option to achieve vascular normalization and antagonize tumor progression. Herein, we demonstrated that salvianic acid A (SAA) played a pivotal role in contributing to vascular normalization in the tumor-bearing mice, thereby improving delivery and effectiveness of the chemotherapeutic agent. SAA was capable of inhibiting glycolysis and strengthening endothelial junctions in the human umbilical vein endothelial cells (HUVECs) exposed to hypoxia. Mechanistically, SAA was inclined to directly bind to the glycolytic enzyme PKM2, leading to a dramatic decrease in endothelial glycolysis. More importantly, SAA improved the endothelial integrity via activating the β-Catenin/Claudin-5 signaling axis in a PKM2-dependent manner. Our findings suggest that SAA may serve as a potent agent for inducing tumor vascular normalization.
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Affiliation(s)
- Cheng Qian
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yueke Zhou
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Teng Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Guanglu Dong
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Mengyao Song
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu Tang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhonghong Wei
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Suyun Yu
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Qiuhong Shen
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wenxing Chen
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jaesung P. Choi
- Centre for Inflammation, Faculty of Science, Centenary Institute, School of Life Sciences, University of Technology Sydney, Sydney NSW 2050, Australia
| | - Juming Yan
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, China
| | - Chongjin Zhong
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Li Wan
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Jia Li
- Macquarie Medical School, Faculty of Medicine, Human Health Sciences, Macquarie University, Sydney NSW 2109, Australia
| | - Aiyun Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yin Lu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yang Zhao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
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Upadhyay S, Khan S, Hassan MI. Exploring the diverse role of pyruvate kinase M2 in cancer: Navigating beyond glycolysis and the Warburg effect. Biochim Biophys Acta Rev Cancer 2024; 1879:189089. [PMID: 38458358 DOI: 10.1016/j.bbcan.2024.189089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/25/2024] [Accepted: 03/03/2024] [Indexed: 03/10/2024]
Abstract
Pyruvate Kinase M2, a key enzyme in glycolysis, has garnered significant attention in cancer research due to its pivotal role in the metabolic reprogramming of cancer cells. Originally identified for its association with the Warburg effect, PKM2 has emerged as a multifaceted player in cancer biology. The functioning of PKM2 is intricately regulated at multiple levels, including controlling the gene expression via various transcription factors and non-coding RNAs, as well as adding post-translational modifications that confer distinct functions to the protein. Here, we explore the diverse functions of PKM2, encompassing newly emerging roles in non-glycolytic metabolic regulation, immunomodulation, inflammation, DNA repair and mRNA processing, beyond its canonical role in glycolysis. The ever-expanding list of its functions has recently grown to include roles in subcellular compartments such as the mitochondria and extracellular milieu as well, all of which make PKM2 an attractive drug target in the pursuit of therapeutics for cancer.
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Affiliation(s)
- Saurabh Upadhyay
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shumayila Khan
- International Health Division, Indian Council of Medical Research, Ansari Nagar, New Delhi 110029, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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48
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Wu B, Liang Z, Lan H, Teng X, Wang C. The role of PKM2 in cancer progression and its structural and biological basis. J Physiol Biochem 2024; 80:261-275. [PMID: 38329688 DOI: 10.1007/s13105-024-01007-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 01/10/2024] [Indexed: 02/09/2024]
Abstract
Pyruvate kinase M2 (PKM2), a subtype of pyruvate kinase (PK), has been shown to play an important role in the development of cancer. It regulates the last step of glycolytic pathway. PKM2 has both pyruvate kinase and protein kinase activity, and the conversion of these two functions of PKM2 depends on the mutual change of dimer and tetramer. The dimerization of PKM2 can promote the proliferation and growth of tumor cells, so inhibiting the dimerization of PKM2 is essential to curing cancer. The aggregation of PKM2 is regulated by both endogenous and exogenous cofactors as well as post-translational modification (PTM). Although there are many studies on the different aggregation of PKM2 in the process of tumor development, there are few summaries in recent years. In this review, we first introduce the role of PKM2 in various biological processes of tumor growth. Then, we summarize the aggregation regulation mechanism of PKM2 by various endogenous cofactors such as Fructose-1, 6-diphosphate (FBP), various amino acids, and post-translational modification (PTMs). Finally, the related inhibitors and agonists of PKM2 are summarized to provide reference for regulating PKM2 aggregation in the treatment of cancer in the future.
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Affiliation(s)
- Bingxin Wu
- State Key Laboratory of Traditional Chinese Medicine Syndrome, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Zuhui Liang
- State Key Laboratory of Traditional Chinese Medicine Syndrome, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Huan Lan
- State Key Laboratory of Traditional Chinese Medicine Syndrome, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Xiaojun Teng
- State Key Laboratory of Traditional Chinese Medicine Syndrome, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Caiyan Wang
- State Key Laboratory of Traditional Chinese Medicine Syndrome, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
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49
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Rafiq S, Mungure I, Banz Y, Niklaus NJ, Kaufmann T, Müller S, Jacquel A, Robert G, Auberger P, Torbett BE, Muller S, Tschan MP, Humbert M. HSPA8 Chaperone Complex Drives Chaperone-Mediated Autophagy Regulation in Acute Promyelocytic Leukemia Cell Differentiation. Pharmacology 2024; 109:216-230. [PMID: 38569476 DOI: 10.1159/000537864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/14/2024] [Indexed: 04/05/2024]
Abstract
INTRODUCTION Acute myeloid leukemia (AML) is a cancer of the hematopoietic system characterized by hyperproliferation of undifferentiated cells of the myeloid lineage. While most of AML therapies are focused toward tumor debulking, all-trans retinoic acid (ATRA) induces neutrophil differentiation in the AML subtype acute promyelocytic leukemia (APL). Macroautophagy has been extensively investigated in the context of various cancers and is often dysregulated in AML where it can have context-dependent pro- or anti-leukemogenic effects. On the contrary, the implications of chaperone-mediated autophagy (CMA) on the pathophysiology of diseases are still being explored and its role in AML remains elusive. METHODS We took advantage of human AML primary samples and databases to analyze CMA gene expression and activity. Furthermore, we used ATRA-sensitive (NB4) and -resistant (NB4-R1) APL cells to further dissect a potential function for CMA in ATRA-mediated neutrophil differentiation. NB4-R1 cells are unique in that they do respond to retinoic acid transcriptionally but do not mature in response to retinoid signaling alone unless maturation is triggered by adding cyclic adenosine monophosphate. RESULTS Here, we report that CMA-related mRNA transcripts are significantly higher expressed in immature hematopoietic cells as compared to neutrophils, contrasting the macroautophagy gene expression patterns. Accordingly, lysosomal degradation of an mCherry-KFERQ CMA reporter decreases during ATRA-induced differentiation of APL cells. On the other hand, using NB4-R1 cells we found that macroautophagy flux primed ATRA-resistant NB4-R1 cells to differentiate upon ATRA treatment but reduced the association of lysosome-associated membrane protein type 2A (LAMP-2A) and heat shock protein family A (Hsp70) member 8 (HSPA8), necessary for complete neutrophil maturation. Accordingly, depletion of HSPA8 attenuated CMA activity and facilitated APL cell differentiation. In contrast, maintaining high CMA activity by ectopic expression of LAMP-2A impeded APL differentiation. CONCLUSION Overall, our findings suggest that APL neutrophil differentiation requires CMA inactivation and that this pathway predominantly depends on HSPA8 and is possibly assisted by other co-chaperones.
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Affiliation(s)
- Sreoshee Rafiq
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Irene Mungure
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Yara Banz
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Nicolas J Niklaus
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Thomas Kaufmann
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Stefan Müller
- Flow Cytometry and Cell Sorting Core Facility, Department for BioMedical Research, University of Bern, Bern, Switzerland
| | | | | | | | - Bruce E Torbett
- Department of Pediatrics, School of Medicine, Center for Immunity and Immunotherapies, University of Washington and Seattle Children's Research Institute, Seattle, Washington, USA
| | - Sylviane Muller
- TRANSAUTOPHAGY: European Network of Multidisciplinary Research and Translation of Autophagy Knowledge, COST Action CA15138, Brussels, Belgium
- Ecole Supérieure de Biotechnologie de Strasbourg, CNRS and Strasbourg University, Unit Biotechnology and Cell Signaling, Illkirch, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, France
- Chair Therapeutic Immunology, University of Strasbourg Institute for Advanced Study, Strasbourg, France
| | - Mario P Tschan
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
- TRANSAUTOPHAGY: European Network of Multidisciplinary Research and Translation of Autophagy Knowledge, COST Action CA15138, Brussels, Belgium
| | - Magali Humbert
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- TRANSAUTOPHAGY: European Network of Multidisciplinary Research and Translation of Autophagy Knowledge, COST Action CA15138, Brussels, Belgium
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Jiang S, Shen QW. Antemortem Stress Regulates Postmortem Glycolysis in Muscle by Deacetylation of Pyruvate Kinase M1 at K141. Protein J 2024; 43:351-361. [PMID: 38605203 DOI: 10.1007/s10930-023-10178-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2023] [Indexed: 04/13/2024]
Abstract
It is well known that preslaughter (antemortem) stress such as rough handling, transportation, a negative environment, physical discomfort, lack of consistent routine, and bad feed quality has a big impact on meat quality. The antemortem-induced poor meat quality is characterized by low pH, a pale and exudative appearance, and a soft texture. Previous studies indicate that antemortem stress plays a key role in regulating protein acetylation and glycolysis in postmortem (PM) muscle. However, the underlying molecular and biochemical mechanism is not clearly understood yet. In this study, we investigated the relationship between antemortem and protein acetylation and glycolysis using murine longissimus dorsi muscle isolated from ICR mice and murine muscle cell line C2C12 treated with epinephrine hydrochloride. Because adrenaline secretion increases in stressed animals, epinephrine hydrochloride was intraperitoneally injected epinephrine into mice to simulate pre-slaughter stress in this study to facilitate experimental operations and save experimental costs. Our findings demonstrated that protein acetylation in pyruvate kinase M1 (PKM1) form is significantly reduced by antemortem, and the reduced acetylation subsequently leads to an increase in PKM1 enzymatic activity which causes increased glycolysis in PM muscle. By using molecular approaches, we identified lysine 141 in PKM1 as a critical residue for acetylation. Our results in this study provide useful insight for controlling or improving meat quality in the future.
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Affiliation(s)
- Shengwang Jiang
- College of Animal Science, Xichang University, Xichang, 615013, Sichuan, China
- College of Food Science and Technology, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Qingwu W Shen
- College of Animal Science, Xichang University, Xichang, 615013, Sichuan, China.
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