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Liu M, Xiao Y, Wang A. Risk factors for acute kidney injury in patients with severe acute pancreatitis: A systematic review and meta-analysis. Int J Artif Organs 2024; 47:876-884. [PMID: 39506314 DOI: 10.1177/03913988241289070] [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] [Indexed: 11/08/2024]
Abstract
OBJECTIVE This systematic review and meta-analysis aimed to identify the risk factors for acute kidney injury (AKI) in patients with severe acute pancreatitis (SAP). METHODS A comprehensive literature search was conducted using the PubMed, Embase and Cochrane Library databases for case-control studies comparing the clinical characteristics of patients with SAP with and without AKI. The quality of the included studies was assessed using the Newcastle-Ottawa Scale (NOS). Pooled odds ratios (ORs) with 95 % confidence intervals (CIs) were calculated using fixed- or random-effects models, based on heterogeneity. RESULTS Five studies involving 795 patients with SAP were included, of whom 173 (21.8 %) developed AKI. All studies were of high quality according to the NOS. Among the 17 potential risk factors that were analysed, a history of alcohol consumption (OR = 2.36, 95% CI = 0.54-10.43, p < 0.001), elevated serum amylase (OR = 4.50, 95% CI = 1.77-11.43, p = 0.002) and Acute Physiology and Chronic Health Evaluation II (APACHE II) score (OR = 1.57, 95% CI = 0.49-2.64, p = 0.004) were significantly associated with an increased risk of AKI. However, hypertension (OR = 1.14, 95% CI = 0.60-2.16, p = 0.69) and diabetes (OR = 1.88, 95% CI = 0.51-6.95, p = 0.34) were not significantly associated with AKI risk. Based on funnel plots, no obvious publication bias was detected. CONCLUSIONS A history of alcohol consumption, elevated serum amylase and APACHE II score are significant risk factors for AKI in patients with SAP. For early intervention, clinical physicians should be vigilant about the risk of AKI in patients with SAP with these factors. More high-quality studies are needed to validate these findings and explore other potential risk factors.
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Affiliation(s)
- Min Liu
- Intensive Care Medicine Department, Three Gorges University Hospital of Traditional Chinese Medicine & Yichang Hospital of Traditional Chinese Medicine, Yichang, Hubei, China
| | - Yuqiong Xiao
- Intensive Care Medicine Department, Three Gorges University Hospital of Traditional Chinese Medicine & Yichang Hospital of Traditional Chinese Medicine, Yichang, Hubei, China
| | - Anqiao Wang
- Intensive Care Medicine Department, Three Gorges University Hospital of Traditional Chinese Medicine & Yichang Hospital of Traditional Chinese Medicine, Yichang, Hubei, China
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2
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Qin A, Shi K, Tindall RR, Li J, Cheng B, Li J, Yang B, Yu Q, Zhang Y, Hong B, Kaur B, Younes M, Shen Q, Bailey-Lundberg JM, Cao Y, Ko TC. Characterization of Pancreatic Collagen-Expressing Fibroblasts in Mouse Acute Pancreatitis. GASTRO HEP ADVANCES 2024; 4:100557. [PMID: 39866719 PMCID: PMC11761323 DOI: 10.1016/j.gastha.2024.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 09/16/2024] [Indexed: 01/28/2025]
Abstract
Background and Aims Pancreatic stellate cells (PSCs) are critical mediators in chronic pancreatitis with an undefined role in acute pancreatitis (AP). PSCs consist of a heterogenous group of cells and are considered interchangeable with pancreatic fibroblasts. This study explored the heterogeneous nature of PSCs by characterizing pancreatic collagen-expressing fibroblasts (PCFs) via lineage tracing in mouse normal and AP pancreas and determining the effect of PCF depletion in AP. Methods Tandem dimer Tomato (tdTom+) PCFs in collagen type 1 (Col1)a2CreERtdTomato (Tom) mice receiving tamoxifen were characterized via fluorescence, Oil Red staining, and flow cytometry. AP was induced by cerulein, AP injury was assessed, and tdTom+ PCFs were monitored. The effect of PCF depletion on AP injury was evaluated in Col1a2CreERdiphtheria toxin A mice. Results Approximately 13% of pancreatic cells in Col1a2CreERTom mice were labeled by tdTom (tdTom+ PCFs), which surrounded acini, ducts, and blood vessels, and stained with Oil Red, collagen type I, vimentin, and desmin. tdTom+ PCFs increased 2-fold during AP, correlating with AP score, amylase, and alpha-smooth muscle actin+ and Ki67+ staining. PCF depletion in Col1a2CreERdiphtheria toxin A mice receiving tamoxifen resulted in enhanced inflammation compared to control. Conclusion PCFs may constitute a subset of PSCs and can be activated during AP. PCF depletion aggravates AP, suggesting a protective role for PCFs.
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Affiliation(s)
- Amy Qin
- Department of Surgery, UTHealth at Houston, Houston, Texas
| | - Kevin Shi
- Department of Surgery, UTHealth at Houston, Houston, Texas
| | | | - Jiajing Li
- Department of Surgery, UTHealth at Houston, Houston, Texas
| | - Binglu Cheng
- Department of Surgery, UTHealth at Houston, Houston, Texas
| | - Jing Li
- Department of Surgery, UTHealth at Houston, Houston, Texas
| | - Baibing Yang
- Department of Surgery, UTHealth at Houston, Houston, Texas
| | - Qiang Yu
- Department of Surgery, UTHealth at Houston, Houston, Texas
| | - Yinjie Zhang
- Department of Surgery, UTHealth at Houston, Houston, Texas
| | - Bangxing Hong
- Department of Pathology, Georgia Cancer Center, Augusta University, Augusta, Georgia
| | - Balveen Kaur
- Department of Pathology, Georgia Cancer Center, Augusta University, Augusta, Georgia
| | - Mamoun Younes
- Department of Pathology, George Washington University, Washington, District of Columbia
| | - Qiang Shen
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | | | - Yanna Cao
- Department of Surgery, UTHealth at Houston, Houston, Texas
| | - Tien C. Ko
- Department of Surgery, UTHealth at Houston, Houston, Texas
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3
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Tindall RR, Yang Y, Hernandez I, Qin A, Li J, Zhang Y, Gomez TH, Younes M, Shen Q, Bailey-Lundberg JM, Zhao Z, Kraushaar D, Castro P, Cao Y, Zheng WJ, Ko TC. Aging- and alcohol-associated spatial transcriptomic signature in mouse acute pancreatitis reveals heterogeneity of inflammation and potential pathogenic factors. J Mol Med (Berl) 2024; 102:1051-1061. [PMID: 38940937 PMCID: PMC11269349 DOI: 10.1007/s00109-024-02460-6] [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: 07/25/2023] [Revised: 03/15/2024] [Accepted: 06/07/2024] [Indexed: 06/29/2024]
Abstract
The rapidly aging population is consuming more alcohol, leading to increased alcohol-associated acute pancreatitis (AAP) with high mortality. However, the mechanisms remain undefined, and currently there are no effective therapies available. This study aims to elucidate aging- and alcohol-associated spatial transcriptomic signature by establishing an aging AAP mouse model and applying Visium spatial transcriptomics for understanding of the mechanisms in the context of the pancreatic tissue. Upon alcohol diet feeding and caerulein treatment, aging mice (18 months) developed significantly more severe AAP with 5.0-fold increase of injury score and 2.4-fold increase of amylase compared to young mice (3 months). Via Visium spatial transcriptomics, eight distinct tissue clusters were revealed from aggregated transcriptomes of aging and young AAP mice: five acinar, two stromal, and one islet, which were then merged into three clusters: acinar, stromal, and islet for the comparative analysis. Compared to young AAP mice, > 1300 differentially expressed genes (DEGs) and approximately 3000 differentially regulated pathways were identified in aging AAP mice. The top five DEGs upregulated in aging AAP mice include Mmp8, Ppbp, Serpina3m, Cxcl13, and Hamp with heterogeneous distributions among the clusters. Taken together, this study demonstrates spatial heterogeneity of inflammatory processes in aging AAP mice, offering novel insights into the mechanisms and potential drivers for AAP development. KEY MESSAGES: Mechanisms regarding high mortality of AAP in aging remain undefined. An aging AAP mouse model was developed recapturing clinical exhibition in humans. Spatial transcriptomics identified contrasted DEGs in aging vs. young AAP mice. Top five DEGs were Mmp8, Ppbp, Serpina3m, Cxcl13, and Hamp in aging vs. young AAP mice. Our findings shed insights for identification of molecular drivers in aging AAP.
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Affiliation(s)
- Rachel R Tindall
- Department of Surgery, UTHealth at Houston, Houston, TX, 77030, USA
| | - Yuntao Yang
- McWilliams School of Biomedical Informatics, UTHealth at Houston, Houston, TX, 77030, USA
| | | | - Amy Qin
- Department of Surgery, UTHealth at Houston, Houston, TX, 77030, USA
| | - Jiajing Li
- Department of Surgery, UTHealth at Houston, Houston, TX, 77030, USA
| | - Yinjie Zhang
- Department of Surgery, UTHealth at Houston, Houston, TX, 77030, USA
| | - Thomas H Gomez
- Center for Laboratory Animal Medicine and Care, UTHealth at Houston, Houston, TX, 77030, USA
| | - Mamoun Younes
- Department of Pathology, George Washington University School of Medicine and Health Sciences, Washington, DC, 20037, USA
| | - Qiang Shen
- Department of Interdisciplinary Oncology, Louisiana State Univ. Health Sciences Center, New Orleans, LA, 70112, USA
| | - Jennifer M Bailey-Lundberg
- Department of Anesthesiology, Critical Care and Pain Medicine, UTHealth at Houston, Houston, TX, 77030, USA
| | - Zhongming Zhao
- Center for Precision Health, McWilliams School of Biomedical Informatics, UTHealth at Houston, Houston, TX, 77030, USA
| | - Daniel Kraushaar
- Genomic and RNA Profiling Core, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Patricia Castro
- Human Tissue Acquisition & Pathology Core, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Yanna Cao
- Department of Surgery, UTHealth at Houston, Houston, TX, 77030, USA.
| | - W Jim Zheng
- McWilliams School of Biomedical Informatics, UTHealth at Houston, Houston, TX, 77030, USA.
| | - Tien C Ko
- Department of Surgery, UTHealth at Houston, Houston, TX, 77030, USA.
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4
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Yin J, Huang Y, Wang K, Zhong Q, Liu Y, Ji Z, Liao Y, Ma Z, Bei W, Wang W. Ginseng extract improves pancreatic islet injury and promotes β-cell regeneration in T2DM mice. Front Pharmacol 2024; 15:1407200. [PMID: 38989151 PMCID: PMC11234855 DOI: 10.3389/fphar.2024.1407200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 06/03/2024] [Indexed: 07/12/2024] Open
Abstract
Introduction Panax ginseng C. A. Mey. (Araliaceae; Ginseng Radix et Rhizoma), a traditional plant commonly utilized in Eastern Asia, has demonstrated efficacy in treating neuro-damaging diseases and diabetes mellitus. However, its precise roles and mechanism in alleviating type 2 diabetes mellitus (T2DM) need further study. The objective of this study is to explore the pharmacological effects of ginseng extract and elucidate its potential mechanisms in protecting islets and promoting β-cell regeneration. Methods The T2DM mouse model was induced through streptozotocin combined with a high-fat diet. Two batches of mice were sacrificed on the 7th and 28th days following ginseng extract administration. Body weight, fasting blood glucose levels, and glucose tolerance were detected. Morphological changes in the pancreatic islets were examined via H & E staining. Levels of serum insulin, glucagon, GLP-1, and inflammatory factors were measured using ELISA. The ability of ginseng extract to promote pancreatic islet β-cell regeneration was evaluated through insulin & PCNA double immunofluorescence staining. Furthermore, the mechanism behind β-cells regeneration was explored through insulin & glucagon double immunofluorescence staining, accompanied by immunohistochemical staining and western blot analyses. Results and Discussion The present research revealed that ginseng extract alleviates symptoms of T2DM in mice, including decreased blood glucose levels and improved glucose tolerance. Serum levels of insulin, GLP-1, and IL-10 increased following the administration of ginseng extract, while levels of glucagon, TNF-α, and IL-1β decreased. Ginseng extract preserved normal islet morphology, increased nascent β-cell population, and inhibited inflammatory infiltration within the islets, moreover, it decreased α-cell proportion while increasing β-cell proportion. Mechanistically, ginseng extract might inhibit ARX and MAFB expressions, increase MAFA level to aid in α-cell to β-cell transformation, and activate AKT-FOXM1/cyclin D2 to enhance β-cell proliferation. Our study suggests that ginseng extract may be a promising therapy in treating T2DM, especially in those with islet injury.
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Affiliation(s)
- Jianying Yin
- Traditional Chinese Medicine Research Institute, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center of Integration of Traditional Chinese Medicine and Western Medicine in Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Yuanfeng Huang
- Traditional Chinese Medicine Research Institute, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center of Integration of Traditional Chinese Medicine and Western Medicine in Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Ke Wang
- Traditional Chinese Medicine Research Institute, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center of Integration of Traditional Chinese Medicine and Western Medicine in Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Qin Zhong
- Traditional Chinese Medicine Research Institute, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center of Integration of Traditional Chinese Medicine and Western Medicine in Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Yuan Liu
- Traditional Chinese Medicine Research Institute, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center of Integration of Traditional Chinese Medicine and Western Medicine in Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Zirui Ji
- Traditional Chinese Medicine Research Institute, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center of Integration of Traditional Chinese Medicine and Western Medicine in Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Yiwen Liao
- Traditional Chinese Medicine Research Institute, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center of Integration of Traditional Chinese Medicine and Western Medicine in Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Zhiyuan Ma
- Baishan Institute of Science and Technology, Baishan, Jilin, China
| | - Weijian Bei
- Traditional Chinese Medicine Research Institute, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center of Integration of Traditional Chinese Medicine and Western Medicine in Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Weixuan Wang
- Traditional Chinese Medicine Research Institute, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center of Integration of Traditional Chinese Medicine and Western Medicine in Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
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Fukuda Y, Mori K, Okada H, Tomita H, Suzuki K, Takada C, Kamidani R, Kawasaki Y, Fukuda H, Minamiyama T, Nishio A, Shimada T, Kuroda A, Uchida A, Kitagawa Y, Fukuta T, Miyake T, Yoshida T, Suzuki A, Tetsuka N, Yoshida S, Ogura S. Decreased neutrophil counts prolong inflammation in acute pancreatitis and cause inflammation spillover to distant organs. Pancreatology 2023; 23:911-918. [PMID: 37981522 DOI: 10.1016/j.pan.2023.10.020] [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: 03/31/2023] [Revised: 07/18/2023] [Accepted: 10/26/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND/OBJECTIVE Acute pancreatitis is an aseptic inflammation caused by pathologically activated pancreatic enzymes and inflammatory mediators produced secondarily by neutrophils and other inflammatory cells and is one of the most difficult diseases to treat. This study aimed to investigate the role of neutrophils in pancreatitis by examining tissue dynamics. METHODS We created a model of caerulein-induced pancreatitis in 12-week-old male granulocyte colony-stimulating factor knockout mice (G-CSF-KO) and wild-type littermate control mice (six intraperitoneal injections of caerulein [80 μg/kg body weight] at hourly intervals for 2 days). Mice were sacrificed 0, 3, 6, 12, 24, 36, 48, 72, and 168 h after caerulein administration and examined histologically. RESULTS The survival rate after one week of caerulein administration was 100 % in the control mice, whereas it was significantly lower (10 %) in the G-CSF-KO mice. Histological examination revealed significant hemorrhage and inflammatory cell migration in the G-CSF-KO mice, indicating prolonged inflammation. CONCLUSION Prolonged inflammation was observed in the G-CSF-KO mice. Tissue cleanup by neutrophils during the acute phase of inflammation may influence healing through the chronic phase.
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Affiliation(s)
- Yohei Fukuda
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Kosuke Mori
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Japan
| | - Hideshi Okada
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan; Center for One Medicine Innovative Translational Research, Gifu University Institute for Advanced Study, Japan.
| | - Hiroyuki Tomita
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Japan; Center for One Medicine Innovative Translational Research, Gifu University Institute for Advanced Study, Japan.
| | - Kodai Suzuki
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Chihiro Takada
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Ryo Kamidani
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Yuki Kawasaki
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Hirotsugu Fukuda
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Toru Minamiyama
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Ayane Nishio
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Takuto Shimada
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Ayumi Kuroda
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Akihiro Uchida
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Yuichiro Kitagawa
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Tetsuya Fukuta
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Takahito Miyake
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Takahiro Yoshida
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
| | - Akio Suzuki
- Department of Pharmacy, Gifu University Hospital, Japan
| | - Nobuyuki Tetsuka
- Department of Infection Control, Gifu University Graduate School of Medicine, Japan
| | - Shozo Yoshida
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan; Abuse Prevention Emergency Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Shinji Ogura
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Japan
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6
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Smoday IM, Petrovic I, Kalogjera L, Vranes H, Zizek H, Krezic I, Gojkovic S, Skorak I, Hriberski K, Brizic I, Kubat M, Strbe S, Barisic I, Sola M, Lovric E, Lozic M, Boban Blagaic A, Skrtic A, Seiwerth S, Sikiric P. Therapy Effect of the Stable Gastric Pentadecapeptide BPC 157 on Acute Pancreatitis as Vascular Failure-Induced Severe Peripheral and Central Syndrome in Rats. Biomedicines 2022; 10:1299. [PMID: 35740321 PMCID: PMC9220115 DOI: 10.3390/biomedicines10061299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/24/2022] [Accepted: 05/27/2022] [Indexed: 12/15/2022] Open
Abstract
We revealed the therapy effect of the stable gastric pentadecapeptide BPC 157 (10 μg/kg, 10 ng/kg ig or po) with specific activation of the collateral rescuing pathways, the azygos vein, on bile duct ligation in particular, and acute pancreatitis as local disturbances (i.e., improved gross and microscopy presentation, decreased amylase level). Additionally, we revealed the therapy's effect on the acute pancreatitis as vascular failure and multiorgan failure, both peripherally and centrally following "occlusion-like" syndrome, major intoxication (alcohol, lithium), maintained severe intra-abdominal hypertension, and myocardial infarction, or occlusion syndrome, and major vessel occlusion. The application-sacrifice periods were ligation times of 0-30 min, 0-5 h, 0-24 h (cured periods, early regimen) and 4.30 h-5 h, 5 h-24 h (cured periods, delayed regimen). Otherwise, bile duct-ligated rats commonly presented intracranial (superior sagittal sinus), portal and caval hypertension and aortal hypotension, gross brain swelling, hemorrhage and lesions, heart dysfunction, lung lesions, liver and kidney failure, gastrointestinal lesions, and severe arterial and venous thrombosis, peripherally and centrally. Unless antagonized with the key effect of BPC 157 regimens, reversal of the inferior caval and superior mesenteric vein congestion and reversal of the failed azygos vein activated azygos vein-recruited direct delivery to rescue the inferior-superior caval vein pathway; these were all antecedent to acute pancreatitis major lesions (i.e., acinar, fat necrosis, hemorrhage). These lesions appeared in the later period, but were markedly attenuated/eliminated (i.e., hemorrhage) in BPC 157-treated rats. To summarize, while the innate vicious cycle may be peripheral (bile duct ligation), or central (rapidly developed brain disturbances), or peripheral and central, BPC 157 resolved acute pancreatitis and its adjacent syndrome.
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Affiliation(s)
- Ivan Maria Smoday
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Igor Petrovic
- Department of Surgery, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia;
| | - Luka Kalogjera
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Hrvoje Vranes
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Helena Zizek
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Ivan Krezic
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Slaven Gojkovic
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Ivan Skorak
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Klaudija Hriberski
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Ivan Brizic
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Milovan Kubat
- Department of Forensic Medicine and Criminology, School of Medicne, 10000 Zagreb, Croatia;
| | - Sanja Strbe
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Ivan Barisic
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Marija Sola
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Eva Lovric
- Department of Pathology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (E.L.); (S.S.)
| | - Marin Lozic
- Department of Pediatric and Preventive Dentistry, School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia;
| | - Alenka Boban Blagaic
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
| | - Anita Skrtic
- Department of Pathology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (E.L.); (S.S.)
| | - Sven Seiwerth
- Department of Pathology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (E.L.); (S.S.)
| | - Predrag Sikiric
- Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (I.M.S.); (L.K.); (H.V.); (H.Z.); (I.K.); (S.G.); (I.S.); (K.H.); (I.B.); (S.S.); (I.B.); (M.S.); (A.B.B.)
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7
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Alves FDAV, Oliveira LDLS, Salomão NG, Provance DW, Basilio-de-Oliveira CA, Basílio-de-Oliveira R, Moragas LJ, de Carvalho JJ, Mohana-Borges R, Rabelo K, Paes MV. Cytokines and inflammatory mediators: Markers involved in interstitial damage to the pancreas in two dengue fever cases associated with acute pancreatitis. PLoS One 2022; 17:e0262785. [PMID: 35041718 PMCID: PMC8765625 DOI: 10.1371/journal.pone.0262785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 01/04/2022] [Indexed: 12/15/2022] Open
Abstract
Dengue viral (DENV) infections can lead to acute pancreatitis and associated tissue damage. This study examined the pancreas from two fatal cases of DENV for histopathological changes as well as for the detection of cytokines, and other inflammatory mediators. Tissue sections were prepared for examination by ultrastructural and histopathological techniques. Sections from the pancreas of non-infected individuals were prepared in parallel as a control. The presence of viral replication in macrophages was detected by co-staining for the proteins NS3 and CD68 by immunofluorescence. Immunohistochemistry was used to detect cells that expressed cytokines and inflammatory mediators to characterize the inflammatory response. Edema, acinar necrosis and fibrosis areas associated with a mononuclear infiltrate were found in infected tissues. The major site of virus replication appeared to be macrophages based on their exclusive presentation of the viral protein NS3. Pancreatic tissues from the infected individuals also displayed increased levels of high mobility group box-1, caspase-3, gelatinase B and tumor necrosis factor alpha compared to controls. The presence of virus replicating macrophages in the pancreas was associated with multiple changes in tissue structure that included elevated levels of cytokines and inflammatory markers that may differentiate acute pancreatitis due to DENV infections from other causes.
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Affiliation(s)
- Felipe de Andrade Vieira Alves
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil
| | - Lucca de Lima S. Oliveira
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil
| | - Natália Gedeão Salomão
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil
| | - David William Provance
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil
- Centro de Desenvolvimento Tecnológico em Saúde, Fiocruz, Rio de Janeiro, Brasil
| | | | | | - Leandro Junqueira Moragas
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil
| | - Jorge José de Carvalho
- Laboratório de Ultraestrutura e Biologia Tecidual, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Ronaldo Mohana-Borges
- Laboratório de Genômica Estrutural, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Kíssila Rabelo
- Laboratório de Ultraestrutura e Biologia Tecidual, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Marciano Viana Paes
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil
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8
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Zhang Q, Zhou J, Zhou J, Fang RH, Gao W, Zhang L. Lure-and-kill macrophage nanoparticles alleviate the severity of experimental acute pancreatitis. Nat Commun 2021; 12:4136. [PMID: 34230486 PMCID: PMC8260623 DOI: 10.1038/s41467-021-24447-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 06/17/2021] [Indexed: 02/08/2023] Open
Abstract
Acute pancreatitis is a disease associated with suffering and high lethality. Although the disease mechanism is unclear, phospholipase A2 (PLA2) produced by pancreatic acinar cells is a known pathogenic trigger. Here, we show macrophage membrane-coated nanoparticles with a built-in 'lure and kill' mechanism (denoted 'MΦ-NP(L&K)') for the treatment of acute pancreatitis. MΦ-NP(L&K) are made with polymeric cores wrapped with natural macrophage membrane doped with melittin and MJ-33. The membrane incorporated melittin and MJ-33 function as a PLA2 attractant and a PLA2 inhibitor, respectively. These molecules, together with membrane lipids, work synergistically to lure and kill PLA2 enzymes. These nanoparticles can neutralize PLA2 activity in the sera of mice and human patients with acute pancreatitis in a dose-dependent manner and suppress PLA2-induced inflammatory response accordingly. In mouse models of both mild and severe acute pancreatitis, MΦ-NP(L&K) confer effective protection against disease-associated inflammation, tissue damage and lethality. Overall, this biomimetic nanotherapeutic strategy offers an anti-PLA2 treatment option that might be applicable to a wide range of PLA2-mediated inflammatory disorders.
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Affiliation(s)
- Qiangzhe Zhang
- Department of Nanoengineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Julia Zhou
- Department of Nanoengineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Jiarong Zhou
- Department of Nanoengineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Ronnie H Fang
- Department of Nanoengineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Weiwei Gao
- Department of Nanoengineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Liangfang Zhang
- Department of Nanoengineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA, USA.
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9
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Guo Y, Hu W, Wang X, Li C, Cui T, Liu R, He J, Yin C. PSD-95 protects the pancreas against pathological damage through p38 MAPK signaling pathway in acute pancreatitis. Exp Biol Med (Maywood) 2021; 246:1473-1482. [PMID: 33794695 DOI: 10.1177/15353702211003293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Acute pancreatitis is one of the leading causes of gastrointestinal disorder-related hospitalizations, yet its pathogenesis remains to be fully elucidated. Postsynaptic density protein-95 (PSD-95) is closely associated with tissue inflammation and injury. We aimed to investigate the expression of PSD-95 in pancreatic acinar cells, and its function in regulating the inflammatory response and pancreatic pathological damage in acute pancreatitis. A mouse model of edematous acute pancreatitis was induced with caerulein and lipopolysaccharide in C57BL/6 mice. Tat-N-dimer was injected to inhibit the PSD-95 activity separately, or simultaneously with SB203580, inhibitor of p38 MAPK phosphorylation. Rat pancreatic acinar cells AR42J were cultured with 1 μM caerulein to build a cell model of acute pancreatitis. PSD-95-knockdown and negative control cell lines were constructed by lentiviral transfection of AR42J cells. Paraffin-embedded pancreatic tissue samples were processed for routine HE staining to evaluate the pathological changes of human and mouse pancreatic tissues. Serum amylase and inflammatory cytokine levels were detected with specific ELISA kits. Immunofluorescence, immunohistochemical, Western-blot, and qRT-PCR were used to detect the expression levels of PSD-95, p38, and phosphorylated p38. Our findings showed that PSD-95 is expressed in the pancreatic tissues of humans, C57BL/6 mice, and AR42J cells, primarily in the cytoplasm. PSD-95 expression increased at 2 h, reaching the peak at 6 h in mice and 12 h in AR42J cells. IL-6, IL-8, and TNF-α increased within 2 h of disease induction. The pancreatic histopathologic score was greater in the PSD-95 inhibition group compared with the control (P < 0.05), while it was lesser when phosphorylation of p38 MAPK was inhibited compared with the PSD-95 inhibition group (P < 0.05). Moreover, phosphorylation of p38 MAPK increased statistically after PSD-95 knocked-down. In conclusion, PSD-95 effectively influences the pathological damage of the pancreas in acute pancreatitis by affecting the phosphorylation of p38 MAPK.
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Affiliation(s)
- Yinan Guo
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Weikai Hu
- Department of Internal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Xueyan Wang
- Department of Internal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Chunyun Li
- Department of Internal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Tianyu Cui
- Department of Internal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Ruixia Liu
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Junqi He
- Department of Biochemistry and Molecular Biology, Capital Medical University, Beijing 100069, China
| | - Chenghong Yin
- Department of Internal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
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Bansod S, Chilvery S, Saifi MA, Das TJ, Tag H, Godugu C. Borneol protects against cerulein-induced oxidative stress and inflammation in acute pancreatitis mice model. ENVIRONMENTAL TOXICOLOGY 2021; 36:530-539. [PMID: 33166053 DOI: 10.1002/tox.23058] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 09/09/2020] [Accepted: 10/22/2020] [Indexed: 06/11/2023]
Abstract
Borneol is a commonly used flavouring substance in traditional Chinese medicine, which possesses several pharmacological activities including analgesic, antiinflammatory, and antioxidant properties. The aim of this study was to investigate the effects of borneol on cerulein-induced acute pancreatitis (AP) model. Swiss albino mice were pretreated with borneol (100 and 300 mg/kg) daily for 7 days, before six consecutive injections of cerulein (50 μg/kg/hr, intraperitoneally). The protective effect of borneol was studied by biochemical, enzyme linked immunosorbent assay, histological, immunoblotting, and immunohistochemical analysis. Oral administration of borneol significantly attenuated pancreatic damage by reducing amylase, lipase levels and histological changes. Borneol attenuated cerulein-induced oxidative-nitrosative stress by decreasing malondialdehyde, nitrite levels, and elevating reduced glutathione levels. Pancreatic inflammation was ameliorated by inhibiting myeloperoxidase activity and pro-inflammatory cytokine (Interleukins and TNF-α) levels. Furthermore, borneol administration significantly increased nuclear factor E2-related factor 2 (Nrf2), superoxide dismutase (SOD1) expression and reduced phospho-NF-κB p65 expression. Treatment with borneol significantly inhibited TNF-α, IL-1β, IL-6, and inducible nitric oxide synthase expression in cerulein-induced AP mouse model. Together, these results indicate that borneol which is currently used as US-FDA approved food adjuvant has the potential to attenuate cerulein-induced AP possibly by reducing the oxidative damage and pancreatic inflammation by modulating Nrf2/NF-κB pathway.
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Affiliation(s)
- Sapana Bansod
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Shrilekha Chilvery
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Mohd Aslam Saifi
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Tridip Jyoti Das
- Department of Botany, Rajiv Gandhi University, Ron Hills, Doimukh, Arunachal Pradesh, India
| | - Hui Tag
- Department of Botany, Rajiv Gandhi University, Ron Hills, Doimukh, Arunachal Pradesh, India
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
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11
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Yang B, Davis JM, Gomez TH, Younes M, Zhao X, Shen Q, Wang R, Ko TC, Cao Y. Characteristic pancreatic and splenic immune cell infiltration patterns in mouse acute pancreatitis. Cell Biosci 2021; 11:28. [PMID: 33531047 PMCID: PMC7852096 DOI: 10.1186/s13578-021-00544-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 01/21/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND A systemic evaluation of immune cell infiltration patterns in experimental acute pancreatitis (AP) is lacking. Using multi-dimensional flow cytometry, this study profiled infiltrating immune cell types in multiple AP mouse models. METHODS Three AP models were generated in C57BL/6 mice via cerulein (CAE) injection, alcohol and palmitoleic acid (EtOH + POA) injection, and alcohol diet feeding and cerulein (EtOH + CAE) injection. Primary pancreatic cells and splenocytes were prepared, and multi-dimensional flow cytometry was performed and analyzed by manual gating and computerized PhenoGraph, followed by visualization with t-distributed stochastic neighbor embedding (t-SNE). RESULTS CAE treatment induced a time-dependent increase of major innate immune cells and a decrease of follicular B cells, and TCD4+ cells and the subtypes in the pancreas, whereas elicited a reversed pattern in the spleen. EtOH + POA treatment resulted in weaker effects than CAE treatment. EtOH feeding enhanced CAE-induced amylase secretion, but unexpectedly attenuated CAE-induced immune cell regulation. In comparison with manual gating analysis, computerized analysis demonstrated a remarkable time efficiency and reproducibility on the innate immune cells and B cells. CONCLUSIONS The reverse pattern of increased innate and decreased adaptive immune cells was consistent in the pancreas in CAE and EtOH + POA treatments. Alcohol feeding opposed the CAE effect on immune cell regulation. Together, the immune profiling approach utilized in this study provides a better understanding of overall immune responses in AP, which may facilitate the identification of intervention windows and new therapeutic strategies. Computerized analysis is superior to manual gating by dramatically reducing analysis time.
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Affiliation(s)
- Baibing Yang
- Department of Surgery, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Joy M Davis
- Department of Surgery, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Thomas H Gomez
- Center of Laboratory Animal Medicine and Care, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Mamoun Younes
- Department of Pathology & Laboratory Medicine, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
- Department of Pathology, George Washington University School of Medicine and Health Sciences, George Washington University Hospital, Washington, DC, 20037, USA
| | - Xiurong Zhao
- Department of Neurology, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Qiang Shen
- Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA, 70112, USA
| | - Run Wang
- Department of Surgery, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Tien C Ko
- Department of Surgery, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
| | - Yanna Cao
- Department of Surgery, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
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12
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Bansod S, Godugu C. Nimbolide ameliorates pancreatic inflammation and apoptosis by modulating NF-κB/SIRT1 and apoptosis signaling in acute pancreatitis model. Int Immunopharmacol 2020; 90:107246. [PMID: 33310297 DOI: 10.1016/j.intimp.2020.107246] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/25/2020] [Accepted: 11/25/2020] [Indexed: 12/12/2022]
Abstract
Acute pancreatitis (AP) is a potential gastrointestinal problem most commonly associated with pancreatic inflammation and acinar cells injury. Nimbolide (NB), isolated from the tree Azadirachta indica, possesses antioxidant and anti-inflammatory effects. Here, we aimed to investigate the pancreatic protective effects of NB in ameliorating cerulein-induced pancreatic inflammation and apoptosis in AP model and evaluate the potential mechanism of action. AP was induced in Swiss albino mice by six-hourly intraperitoneal exposures of cerulein (50 µg/kg/hr) and pre-treatment of NB (0.3 and 1 mg/kg) 7 days prior to the cerulein exposure. Various parameters associated with AP in plasma and pancreatic tissues were evaluated. Severity of AP was effectively ameliorated by NB as shown by reducing pancreatic edema, plasma amylase and lipase levels, MPO levels and in cerulein-induced histological damage. Further, the antioxidant effect of NB was associated with a significant inhibition of oxidative-nitrosative stress in Raw 264.7 cells and cerulein-induced AP mice. Moreover, NB suppressed proinflammatory cytokines, iNOS and nitrotyrosine expression. In addition, NB inhibited NF-κB activation and increased SIRT1 expression in cerulein challenged mice. Furthermore, NB also inhibited pancreatic apoptosis by downregulating cleaved caspase 3 and Bax while upregulating Bcl2 expression in cerulein-treated mice. Inhibition of pancreatic inflammation and apoptosis resulted in attenuation of cerulein-induced AP. These results suggest that NB exerts strong anti-pancreatitis effects against cerulein-induced AP by combating inflammatory and apoptosis signaling via SIRT1 activation.
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Affiliation(s)
- Sapana Bansod
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India.
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The protective effect of betacellulin against acute pancreatitis is ERBB4 dependent. J Gastroenterol 2020; 55:317-329. [PMID: 31456099 DOI: 10.1007/s00535-019-01613-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 08/15/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND The EGFR ligand betacellulin (BTC) has been previously shown to protect mice against experimentally induced acute pancreatitis (AP). BTC binds both autonomous ERBB receptors EGFR and ERBB4. In this study, we evaluated the mechanism underlying the protection from AP-associated inflammation in detail. METHODS AP was induced with cerulein or L-arginine and investigated in a pancreas-specific ERBB4 knockout and in an EGFR knockdown mouse model (EgfrWa5/+). Pancreatitis was evaluated by scoring inflammation, necrosis, and edema, while microarrays were performed to analyze alterations in the transcriptome between mice with AP and animals which were protected against AP. The intracellular domain (ICD) of ERBB4 was analyzed in different cell compartments. RESULTS While the pancreas of BTC transgenic mice in the background of EgfrWa5/+ is still protected against AP, the BTC-mediated protection is no longer present in the absence of ERBB4. We further demonstrate that BTC activates the ICD of ERBB4, and increases the expression of the extracellular matrix (ECM) proteins periostin and matrix gla protein as well as the ECM modulators matrix metalloproteinases 2 and 3, but only in the presence of ERBB4. Notably, the increased expression of these proteins is not accompanied by an increased ECM amount. CONCLUSIONS These findings suggest that BTC derivates, as a drug, or the ERBB4 receptor, as a druggable target protein, could play an important role in modulating the course of AP and even prevent AP in humans.
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Kim YS, Chang JH, Kim TH, Kim CW, Kim JK, Han SW. Prolonged hyperamylasemia in patients with acute pancreatitis is associated with recurrence of acute pancreatitis. Medicine (Baltimore) 2020; 99:e18861. [PMID: 32011507 PMCID: PMC7220070 DOI: 10.1097/md.0000000000018861] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Serum amylase levels in patients with acute pancreatitis often remain or fluctuate above the upper normal limit for over a week. This study investigated the clinical characteristics of patients with prolonged hyperamylasemia and their prognoses, including recurrence.We retrospectively analyzed patients with first attacks of acute pancreatitis in a single center between March 2010 and December 2016. Patients were divided into 2 groups according to normalization of the serum amylase levels within a week.A total of 313 patients were enrolled after exclusion. The serum amylase levels were normalized within a week in 205 patients (65.5%, group 1) and elevated over a week in 108 patients (34.5%, group 2). Group 2 was more related to alcohol, higher computed tomography (CT) severity index, local pancreatic complication, and moderately severe pancreatitis than group 1 (P < .05). Recurrent pancreatitis developed significantly more in group 2 (39.8%) than in group 1 (19.5%) (P < .001). The factors related to recurrent pancreatitis were amylase group, sex, alcohol, CT severity index, necrosis, and severity of pancreatitis (P < .05). Multivariate analysis showed that recurrent pancreatitis was independently associated with amylase group (odds ratio [OR] 2.123, 95% confidence interval [CI]= 1.227-3.673, P = .007) and alcohol (OR 2.023, 95% CI 1.134-3.611, P = .017).In conclusion, prolonged hyperamylasemia over a week is associated with recurrence of acute pancreatitis.
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Affiliation(s)
- Young Sun Kim
- Department of Internal Medicine, College of Medicine, the Catholic University of Korea, Seoul, Korea
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Amiti, Tamizhselvi R, Manickam V. Menadione (vitamin K3) inhibits hydrogen sulfide and substance P via NF-кB pathway in caerulein-induced acute pancreatitis and associated lung injury in mice. Pancreatology 2019; 19:266-273. [PMID: 30685119 DOI: 10.1016/j.pan.2019.01.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/11/2019] [Accepted: 01/16/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE We aim to study the protective effect of menadione on caerulein-induced acute pancreatitis (AP) and associated lung injury and to explore the possible mechanism. METHODS Male Swiss mice randomized into control and different experimental groups. AP was induced in mice by six hourly intraperitoneal (i.p) injections of caerulein (50 μg/kg at 1 h interval). Menadione (10 mg/kg) was administered one hour (i.p, 10 mg/kg) after the first caerulein injection and control animals were given hourly intraperitoneal (i.p) injection of isotonic sodium chloride solution for 6 hours. RESULTS Administration of menadione attenuated the severity of AP and associated lung injury as shown by the histopathology, reduced MPO and serum amylase activity. Further, the anti-inflammatory effect of menadione was associated with a reduction of pancreatic and pulmonary proinflammatory cytokine interleukin 1β (IL-1β) and hydrogen sulfide (H2S). Moreover, menadione inhibited caerulein-induced cystathionine-γ-lyase, preprotachykinin-A (PPTA) and neurokinin-1 receptor (NK-1R) expression in pancreas and lungs. Also menadione further enhances the beneficial effect by reducing caerulein-induced nuclear factor (NF) -κB activation in both pancreas and lung. CONCLUSION The present findings show for the first time that in AP, menadione may exhibit an anti-inflammatory effect by down-regulating substance-P and H2S signaling via the NF-кB pathway.
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Affiliation(s)
- Amiti
- School of BioSciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - Ramasamy Tamizhselvi
- School of BioSciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - Venkatraman Manickam
- School of BioSciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India.
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Wang B, Hu C, Mei Y, Bao J, Ding S, Liu X, Mei Q, Xu J. Resolvin D1 Resolve Inflammation in Experimental Acute Pancreatitis by Restoring Autophagic Flux. Dig Dis Sci 2018; 63:3359-3366. [PMID: 29974378 DOI: 10.1007/s10620-018-5191-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 06/28/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Acute pancreatitis (AP) is a common acute gastrointestinal disorders. Increasing evidence indicated that autophagy is involved in the development of AP. Resolvin D1 is an endogenous pro-resolving lipid mediator, which can protect mice from cerulein-induced acute pancreatitis and facilitate autophagy in macrophage, but its mechanism remians unclear. AIMS To investigate the effect of resolvin D1 on autophagy in mouse models of cerulein-induced AP. METHODS C57BL/6 mice were randomly divided into control group, AP group and resolvin D1 group. The models of cerulein-induced AP were constructed by intraperitoneally cerulein. Resolvin D1 group was established by intraperitoneally resolvin D1 based on AP models, simultaneously, control group received normal saline. The severity of AP, the level of inflammatory cytokines, the number of autophagic vacuoles, and the expression of autophagy-related markers were evaluated among three groups. RESULTS The AP models were established successfully. Compared to control group, the number of autophagic vacuoles and expressions of autophagy-related markers including Beclin-1, p62 and LC3-II were increased in AP models, In contrast, the degree of inflammation and levels of inflammatory cytokines in AP models were reduced after resolvin D1 treatment. Moreover, resolvin D1 attenuated the number of autophagic vacuoles and expressions of autophagy-related markers. CONCLUSIONS Autophagic flux is impaired in cerulein-induced AP. Resolvin D1 ameliorate the severity of mice with cerulein-induced acute pancreatitis, possible attributing to its reducing impaired autophagy and restoring autophagic flux.
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Affiliation(s)
- Bingbing Wang
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, The Key Laboratory of Digestive Diseases of Anhui Province, 218 Jixi Road, Hefei, 230022, Anhui Province, China
| | - Cui Hu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, The Key Laboratory of Digestive Diseases of Anhui Province, 218 Jixi Road, Hefei, 230022, Anhui Province, China
| | - Yongyu Mei
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, The Key Laboratory of Digestive Diseases of Anhui Province, 218 Jixi Road, Hefei, 230022, Anhui Province, China
| | - Junjun Bao
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, The Key Laboratory of Digestive Diseases of Anhui Province, 218 Jixi Road, Hefei, 230022, Anhui Province, China
| | - Shaozhen Ding
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, The Key Laboratory of Digestive Diseases of Anhui Province, 218 Jixi Road, Hefei, 230022, Anhui Province, China
| | - Xiaochang Liu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, The Key Laboratory of Digestive Diseases of Anhui Province, 218 Jixi Road, Hefei, 230022, Anhui Province, China
| | - Qiao Mei
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, The Key Laboratory of Digestive Diseases of Anhui Province, 218 Jixi Road, Hefei, 230022, Anhui Province, China.
| | - Jianming Xu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, The Key Laboratory of Digestive Diseases of Anhui Province, 218 Jixi Road, Hefei, 230022, Anhui Province, China
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Abstract
OBJECTIVES The aim of this study was to investigate the effects of emodin on attenuating autophagy response in acute pancreatitis (AP) models. METHODS Acute pancreatitis was induced in Wistar rats by injecting 3% sodium taurocholate into the biliopancreatic duct. Emodin (40 mg/kg per day) was then given intragastrically, administrated 2 hours after AP induction. Rats were killed 24 hours after AP induction. The pancreatic injury was assessed using biochemical and histological approaches. Autophagosomes in pancreatic acinar cells were observed by electron microscopy. The expression levels of microtubule-associated protein 1 light chain 3 (LC3) B/A, beclin-1, and p62/SQSTM1 (p62) were detected by Western blotting, quantitative real-time polymerase chain reaction, and immunohistochemistry in pancreatic tissues. RESULTS Compared with non-emodin-treated rats, the pathological injuries of the pancreas of emodin-treated rats were significantly alleviated, and autophagy vacuole formation was reduced within pancreatic acinar cells. Administration of emodin led to a reduction in the autophagy-associated protein level of LC3 (B/A) and p62 but not beclin-1. The transcript levels of LC3B, beclin-1, and p62 were decreased in the emodin-treated rats compared with non-emodin-treated rats. CONCLUSIONS Our data demonstrate that emodin plays a critical role in ameliorating AP, possibly by down-regulating autophagic protein levels.
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Suppression of inducible nitric oxide synthase and tumor necrosis factor-alpha level by lycopene is comparable to methylprednisolone in acute pancreatitis. Dig Liver Dis 2018; 50:601-607. [PMID: 29439880 DOI: 10.1016/j.dld.2018.01.131] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 01/17/2018] [Accepted: 01/17/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Oxidative stress and inflammation may play a key role in the pathogenesis of acute pancreatitis (AP). Lycopene, a natural carotenoid, has antioxidant scavenger capacity and inhibits inflammation in many experimental models. AIM The study was designed to investigate whether lycopene can ameliorate l-arginine-induced pancreatitis in rats and to elucidate the underlying molecular mechanisms of these effects. METHODS Forty-eight adult male Wistar rats were divided into: control group (vehicle, orally, 10 days), AP group (3 g/kg l-arginine, single i.p. injection, on day 10th of the experiment), lycopene group (50 mg/kg) and methylprednisolone group (30 mg/kg). Lycopene and methylprednisolone were given orally, once daily for 10 days prior to l-arginine injection. Rats were sacrificed 24 h after l-arginine injection. Inflammation/oxidative stress and pancreatic markers were assessed. Pancreatic histopathological studies were done. RESULTS Lycopene group showed a significant reduction in tumor necrosis factor alpha (TNF-α), myeloperoxidase activity, and down-regulation of inducible nitric oxide synthase (iNOS) gene expression. Pancreatic nitric oxide concentration was reduced and pancreatic GSH was increased in lycopene group. Serum α-amylase and lipase activities were reduced by lycopene treatment. The histology of pancreas was improved in lycopene group as well as methylprednisolone group. CONCLUSION Lycopene prior treatment proved anti-inflammatory and antioxidant effects against AP rat model via different mechanisms.
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Anti-inflammatory and Antioxidant Effects of Captopril Compared to Methylprednisolone in L-Arginine-Induced Acute Pancreatitis. Dig Dis Sci 2018; 63:1497-1505. [PMID: 29594979 DOI: 10.1007/s10620-018-5036-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 03/22/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Acute pancreatitis (AP) is an inflammatory disease mediated by damage in acinar cells and pancreatic inflammation with infiltration of leukocytes. The pancreatic renin-angiotensin system may play an important role in the pathogenesis of AP. AIM The present study aimed to investigate the possible protective role of captopril (CAP), an angiotensin-converting enzyme inhibitor, in attenuating L-arginine-induced AP rat model and to elucidate the underlying molecular mechanisms. METHODS Forty-eight adult male Wister rats were divided into four equal groups: control group (vehicle, orally for 10 days), AP group (3 g/kg L-arginine, single i.p.) on 10th day of the experiment, CAP group (50 mg/kg captopril, orally, once daily), and MP group (30 mg/kg methylprednisolone, orally, once daily). CAP and MP were administered for 10 days prior to L-arginine injection. Rats were sacrificed 24 h after arginine injection. Inflammatory biomarkers; tumor necrosis factor alpha (TNF-α) concentration, myeloperoxidase (MPO) activity, and inducible nitric oxide synthase (iNOS) gene expression were determined in pancreas. Oxidative stress biomarkers; pancreatic nitric oxide (NO) and reduced glutathione (GSH) concentrations were measured. Moreover, serum α-amylase and lipase activities were measured and histopathological studies of the pancreas were done. RESULTS CAP group showed a significant reduction in pancreatic TNF-α concentration, MPO activity, NO concentration, and downregulation of iNOS gene expression compared to AP group. CAP group also showed a significant increase in GSH concentration with amelioration of histological changes of AP as well as MP group. CONCLUSION Captopril treatment showed a protective and comparable effect with MP treatment in AP rat model.
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Protective Effect of Scopoletin Against Cerulein-Induced Acute Pancreatitis and Associated Lung Injury in Mice. Pancreas 2018; 47:577-585. [PMID: 29595543 DOI: 10.1097/mpa.0000000000001034] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE The present study aimed to evaluate the protective effects of scopoletin (SC) on cerulein-induced acute pancreatitis (AP) and associated lung injury in mice. METHODS Acute pancreatitis was induced in male Swiss mice by 6 consecutive hourly intraperitoneal injections of cerulein (50 μg/kg). Scopoletin was administered 1 hour (intraperitoneal, 10 mg/kg) after the first cerulein injection. RESULTS Administration of SC attenuated the severity of AP and associated lung injury as shown by histology, reduced myeloperoxidase, and serum amylase activity. Further, the anti-inflammatory effect of SC was associated with a reduction of pancreatic and pulmonary proinflammatory cytokines (interleukin 1β and tumor necrosis factor α) and hydrogen sulfide. Moreover, SC inhibited cerulein-induced nuclear factor κB activation in both pancreas and lung. Also, SC treatment further enhances the beneficial effect by reducing cerulein-induced mast cell activation as shown by reduced monocyte chemoattractant protein 1, interleukin 33, and preprotachykinin A expression (encodes neuropeptide substance P) in the pancreas and lungs. CONCLUSIONS The present findings show for the first time that in AP SC may exhibit an anti-inflammatory effect by down-regulating substance P and hydrogen sulfide signaling via nuclear factor κB pathway.
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Li L, Sun Z, Xu C, Wu J, Liu G, Cui H, Chen H. Adenovirus-mediated overexpression of sST2 attenuates cardiac injury in the rat with severe acute pancreatitis. Life Sci 2018; 202:167-174. [PMID: 29653119 DOI: 10.1016/j.lfs.2018.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/29/2018] [Accepted: 04/08/2018] [Indexed: 12/12/2022]
Abstract
AIMS Severe acute pancreatitis (SAP) is a serious disease associated with systematic inflammation and multiple organs dysfunction. Soluble ST2 (sST2), a member of the Toll interleukin (IL)-1 receptor (TIR) superfamily, has been demonstrated to exert immune-regulatory and anti-inflammatory properties in several inflammation-related diseases. In this study, we investigated whether transfer of sST2 gene by adenovirus vector could attenuate sodium taurocholate-induced SAP and associated cardiac injury. MAIN METHODS A rat model of SAP was induced by retrograde injection of 5% sodium taurocholate (1 ml/kg) into the biliopancreatic duct. Rats in the treatment groups were intravenously injected with adenovirus expressing sST2 (Ad-sST2, 1 × 109 particles/rat) or green fluorescent protein (Ad-GFP) via the tail vein 48 h before SAP induction. Histological changes in the pancreatic and heart tissues, and parameters for evaluating SAP and associated cardiac injury were determined at 24 h after SAP. KEY FINDINGS Sodium taurocholate induced obvious pathological changes in pancreas and elevated serum levels of amylase and lipase. Furthermore, SAP animals exhibited significant cardiac impairment, evidenced by decreased cardiac function, increased myocardial apoptosis and cardiac-related enzymes including creatine kinase isoenzyme, lactate dehydrogenase, and Troponin T. Administration of Ad-sST2 markedly improved the structure of pancreas and heart tissues, and reversed the alterations in serum amylase, lipase and cardiac-related enzymes. In addition, Ad-sST2 treatment downregulated pro-inflammatory cytokines production, demonstrating the anti-inflammatory property of sST2. SIGNIFICANCE Our results suggest that administration of Ad-sST2 significantly attenuated the severity of SAP and associated cardiac damage, and the cardioprotective effect is associated with its anti-inflammatory action.
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Affiliation(s)
- Lei Li
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, People's Republic of China; Department of Vascular Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, People's Republic of China
| | - Zhongwei Sun
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, People's Republic of China
| | - Caiming Xu
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, People's Republic of China
| | - Jun Wu
- Department of Ultrasound, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, People's Republic of China
| | - Geliang Liu
- Department of Urology Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, People's Republic of China
| | - Hongzhang Cui
- Department of General Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, People's Republic of China
| | - Hailong Chen
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, People's Republic of China.
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Liao D, Qian B, Zhang Y, Wu K, Xu M. Inhibition of 5-lipoxygenase represses neutrophils activation and activates apoptosis in pancreatic tissues during acute necrotizing pancreatitis. Biochem Biophys Res Commun 2018; 498:79-85. [PMID: 29421656 DOI: 10.1016/j.bbrc.2018.02.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 02/03/2018] [Indexed: 11/29/2022]
Abstract
Pancreatic glandular necrosis is rapid inflammation of the pancreas and contributes to severe acute pancreatitis in humans. The pathogenesis of pancreatic tissue inflammation during acute pancreatitis is still largely unknown. Recent studies suggest that 5-lipoxygenase (5-LOX) is an essential mediator in modulating cell death pathways in human diseases. In this study, we aimed to evaluate the effects of a 5-LOX inhibitor, zileuton, on tissue apoptosis and neutrophils activation in pancreatic tissues during acute necrotizing pancreatitis (ANP) in a rat model. In this present study, both mRNA and protein levels of 5-LOX are upregulated during ANP and zileuton treatment is shown to repress ANP-induced upregulation of 5-LOX levels. In addition, zileuton treatment is found to repress blood biomarkers of neutrophils activation such as soluble intercellular adhesive molecular 1 (ICAM-1), soluble E-selectin (E-selectin), soluble P-selectin (P-selectin), leukotriene B4 (LTB4), and myeloperoxidase (MPO). Also, zileuton treatment attenuates pancreatic tissue pathology, upregulates caspase-3, downregulates B-cell lymphoma 2 (Bcl-2), and activates tissue apoptosis evaluated by TUNEL staining. Our results show that 5-LOX plays an important role in activating apoptosis and repressing neutrophils activation during ANP. The current study suggests that 5-LOX can be used as a potential target for the treatment of ANP.
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Affiliation(s)
- Dan Liao
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Bo Qian
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Yefei Zhang
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Kai Wu
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Min Xu
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, 200080, China.
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Ye X, Ding J, Chen Y, Dong J. Adenovirus-mediated artificial miRNA targetting fibrinogen-like protein 2 attenuates the severity of acute pancreatitis in mice. Biosci Rep 2017; 37:BSR20170964. [PMID: 29054965 PMCID: PMC5700271 DOI: 10.1042/bsr20170964] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 12/10/2017] [Accepted: 10/17/2017] [Indexed: 12/19/2022] Open
Abstract
Severe acute pancreatitis (SAP) remains to be challenging for its unpredictable inflammatory progression from acute pancreatitis to SAP. Apoptosis is an important pathology of SAP. Fibrinogen-like protein 2 (FGL2) has been reported to be involved in apoptosis. The present study aimed to explore the therapeutic effect of an adenovirus-mediated artificial miRNA targetting FGL2 (Ad-FGL2-miRNA) in taurocholate-induced murine pancreatitis models. Sodium taurocholate was retrogradely injected into the biliopancreatic ducts of the C57/BL mice to induce SAP. FGL2 expression was measured with reverse transcription-PCR, Western blotting, and immunohistochemical staining. ELISA was used to detect the activity of amylase and the concentrations of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β). In addition, the mRNA levels of TNF-α and IL-1β were also detected. Finally, apoptosis was assessed by terminal deoxynucleotidyl transferase mediated dUTP-biotin nick-end labeling (TUNEL) method and Western blotting. Ad-FGL2-miRNA significantly suppressed FGL2 expression and alleviated pancreatic injury. Also, Ad-FGL2-miRNA markedly inhibited a post-SAP increase in the activation of TNF-α and IL-1β. Finally, pretreatment with Ad-FGL2-miRNA ameliorated apoptosis at the early stage of SAP by modulating cleaved caspase-3 and therefore played a protective role. These results indicated that FGL2 might be a promising target for attenuating the severity of SAP and adenovirus-mediated artificial miRNAs targetting FGL2 represented a potential therapeutic approach for the treatment of SAP.
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Affiliation(s)
- Xiaohua Ye
- Department of Gastroenterology, Jinhua Hospital of Zhejiang University, Jinhua 321000, China
| | - Jin Ding
- Department of Gastroenterology, Jinhua Hospital of Zhejiang University, Jinhua 321000, China
| | - Yanping Chen
- Department of Gastroenterology, Jinhua Hospital of Zhejiang University, Jinhua 321000, China
| | - Jiayue Dong
- Department of Gastroenterology, Jinhua Hospital of Zhejiang University, Jinhua 321000, China
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Iyer S, Park MJ, Moons D, Kwan R, Liao J, Liu L, Omary MB. Clusterin and Pycr1 alterations associate with strain and model differences in susceptibility to experimental pancreatitis. Biochem Biophys Res Commun 2017; 482:1346-1352. [PMID: 27939882 PMCID: PMC5240812 DOI: 10.1016/j.bbrc.2016.12.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 12/06/2016] [Indexed: 01/15/2023]
Abstract
Acute pancreatitis has several underlying etiologies, and results in consequences ranging from mild to complex multi-organ failure. The wide range of pathology suggests a genetic predisposition for progression. We compared the susceptibility to acute pancreatitis in BALB/c and FVB/N mice, coupled with proteomic analysis, in order to identify potential protein associations with pancreatitis progression. METHODS Pancreatitis was induced in BALB/c and FVB/N mice by administration of cerulein or feeding a choline-deficient, ethionine-supplemented (CDE) diet. Histology and changes in serum amylase were examined. Proteome profiling in cerulein-treated mice was performed using 2-dimensional differential in gel electrophoresis (2D-DIGE) followed by mass spectrometry analysis and biochemical validation. RESULTS Male and female FVB/N mice manifested more severe cerulein-induced pancreatitis as compared with BALB/c mice, but both strains were similarly susceptible to CDE-induced pancreatitis. Few of the 2D-DIGE alterations were validated by immunoblotting. Clusterin was markedly up-regulated after cerulein-induced pancreatitis in FVB/N but less-so in BALB/c mice. Pyrroline-5-carboxylate reductase (Pycr1), an enzyme involved in proline biosynthesis, had higher basal levels in FVB/N male and female mouse pancreata compared with BALB/c pancreata, and was relatively more resistant to degradation in FVB/N pancreata. However, serum and pancreas tissue proline levels were similar in the two strains. CONCLUSION FVB/N is more susceptible than BALB/c mice to cerulein-induced but not CDE-induced pancreatitis. Most of the 2D-DIGE alterations in the two strains likely relate to posttranslational modifications rather than protein level differences. Clusterin levels increase dramatically in association with pancreatitis severity, while Pycr1 is higher in FVB/N versus BALB/c pancreata basally and after induction of pancreatitis. Changes in proline metabolism may represent a novel potential genetic modifier in the context of pancreatitis.
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Affiliation(s)
- Sapna Iyer
- Research & Development, Protein and Cell Analysis, Thermo Fisher Scientific, Bangalore, India
| | - Min-Jung Park
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
| | - David Moons
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Raymond Kwan
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
| | | | - Li Liu
- Hepatology Unit and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - M Bishr Omary
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA; Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA; VA Ann Arbor Healthcare System, Ann Arbor, MI, USA.
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Osteomyelitis: A rare complication of pancreatitis and PPP-syndrome. Joint Bone Spine 2015; 83:221-4. [PMID: 26471414 DOI: 10.1016/j.jbspin.2015.05.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Accepted: 05/28/2015] [Indexed: 12/16/2022]
Abstract
Pancreatic diseases can be accompanied by periarthritis with bone necrosis and panniculitis (PPP-syndrome). It is postulated that this is caused by systemic activity of pancreatic enzymes leading to microcirculatory disturbances and fat necrosis. The morbidity and mortality of the PPP-syndrome is high. Successful treatment of pancreatitis can lead to resolution of accompanying panniculitis and periarthritis without adverse sequelae, but weeks or months after pancreatitis, asymptomatic necrosis of the bone may become symptomatic by fracturing spontaneously. In this report, we also describe osteomyelitis as a severe septic complication of bone necrosis caused by pancreatitis, in one case as acute tissue necrosis and in another case months after pancreatitis spread haematogenously.
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Hu YY, Zhou CH, Dou WH, Tang W, Hu CY, Hu DM, Feng H, Wang JZ, Qian MJ, Cheng GL, Wang SF. Improved autophagic flux is correlated with mTOR activation in the later recovery stage of experimental acute pancreatitis. Pancreatology 2015; 15:470-477. [PMID: 26164831 DOI: 10.1016/j.pan.2015.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 05/20/2015] [Accepted: 06/15/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Lysosomal/autophagic pathway plays important role in the early onset of acute pancreatitis (AP). However, its role in the later recovery phase of AP is unknown. This study aims to investigate the role of lysosomal/autophagic pathway in the self-limited program of AP and elucidate the underlying mechanisms. METHODS AP was induced in the rat by 3% sodium taurocholate injection in the pancreaticobiliary duct. Serum amylase activity assay, histological examination, and cell death detection were used to assess the time course of AP severity. Meanwhile, the expression of LC3-II, p62 and Lamp-2 was measured to evaluate the status of autophagic flux. S6RP phosphorylation was detected to determine the time course of mTOR activation. Rapamycin was administered to block mTOR activity. RESULTS AP developed in the rats to the most severe at 24 h but tended to self-restore at 36 and 48 h. The impairment of autophagic flux characterized by the accumulation of LC3-II and p62 and the depletion of Lamp-2 occurred at 24 h after AP induction followed by the restoration over the following 24 h. Furthermore, the phosphorylation of S6RP was increased at 36 and 48 h after AP induction despite the initial inhibition. Rapamycin treatment reduced the level of phospho-S6RP and inhibited the restoration of autophagic homeostasis and pancreatic tissue injury. CONCLUSIONS Activation of mTOR is correlated with the improvement of autophagic flux and pancreatic injury, suggesting that mTOR activation plays a potential protective role in the later recovery of AP.
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Affiliation(s)
- Yang-Yang Hu
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Chun-Hua Zhou
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Wen-Huan Dou
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Wen Tang
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Chuang-Ying Hu
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Duan-Min Hu
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Hui Feng
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Jian-Zong Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Ming-Jie Qian
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Gui-Lian Cheng
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China
| | - Shao-Feng Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Soochow 215004, China.
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Overexpression of Fas and FasL is associated with infectious complications and severity of experimental severe acute pancreatitis by promoting apoptosis of lymphocytes. Inflammation 2015; 37:1202-12. [PMID: 24566874 PMCID: PMC4077252 DOI: 10.1007/s10753-014-9847-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This study investigated the relationship of Fas and Fas ligand (FasL) expression and apoptosis of lymphocytes in relation to the pathogenic immune response and infectious complications observed in experimental severe acute pancreatitis in mice. Forty male Balb/c mice were randomly divided into control, mild (MAP), and severe acute pancreatitis (SAP) groups. Overexpression of Fas/FasL messenger ribonucleic acid (mRNA) and protein was observed in spleen-derived lymphocytes in SAP (p < 0.01). Apoptosis of these resulted in a depletion of circulating lymphocytes in this group (p < 0.05). A further significant change in the SAP group with infectious complications was observed. A positive relationship was found between the Fas/FasL expression and lymphocyte apoptosis, and negative relationships were observed between Fas/FasL expression and CD4+ and CD19+ lymphocytes and the CD4+/CD8+ ratio in SAP mice (p < 0.01). The results suggest that the overexpression of Fas/FasL is associated with infectious complications and severity of experimental severe acute pancreatitis by promoting apoptosis of lymphocytes.
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Abstract
OBJECTIVE To isolate microRNAs (miRNAs) from mesenteric lymph (ML) and peripheral blood and identify those that change with experimental acute pancreatitis (AP). To assess identified AP-associated miRNAs in patient plasma to evaluate them as clinical biomarkers of AP. BACKGROUND miRNAs, small non-protein-coding molecules that regulate gene expression, are present in many biological fluids. They are increasingly interesting as biomarkers of disease and as novel signaling molecules in pathogenesis. METHODS Affymetrix miRNA profiling was performed on ML collected from 3 groups of rats with either mild or moderate taurocholate-induced AP and sham controls. Quantitative reverse transcription-polymerase chain reaction was used to validate selected miRNAs in matched rat lymph and plasma and then measured in patients with mild or moderate AP and in healthy volunteers. RESULTS Eighty-five miRNAs were detectable in rat ML, and many were abundant in all animals irrespective of the presence of AP. Seven miRNAs, comprising miR-375, -217, -148a, -216a, -122, -214, and -138, were increased in ML from rats with AP (P < 0.01). Their abundance also altered with disease severity. miRNAs miR-217, -375, -122, and -148a were also increased in matched rat plasma samples by quantitative reverse transcription-polymerase chain reaction. In the clinical studies, plasma miR-216a was significantly increased in both mild and moderate AP. CONCLUSIONS This study is the first to demonstrate both the presence of circulating miRNAs in lymph and the alteration of specific miRNAs in AP. Furthermore, these miRNAs alter in rat and human AP plasma and have potential to be explored as novel biomarkers of pancreatitis.
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Potential Effects of Calcium Binding Protein S100A12 on Severity Evaluation and Curative Effect of Severe Acute Pancreatitis. Inflammation 2014; 38:290-7. [DOI: 10.1007/s10753-014-0032-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Jacob TG, Raghav R, Kumar A, Garg PK, Roy TS. Duration of injury correlates with necrosis in caerulein-induced experimental acute pancreatitis: implications for pathophysiology. Int J Exp Pathol 2014; 95:199-208. [PMID: 24761825 DOI: 10.1111/iep.12081] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 03/03/2014] [Indexed: 12/17/2022] Open
Abstract
Pancreatic acinar cell necrosis is indicative of severe pancreatitis and the degree of necrosis is an index of its outcome. We studied whether the dose and duration of injury correlates with severity, particularly in terms of necrosis, in caerulein-induced acute pancreatitis (AP) in Swiss albino mice. In addition to control group 1 (G1), groups 2 and 3 received four injections of caerulein every hour but were sacrificed at five hours (G2) and nine hours (G3) respectively, and group 4 received eight injections and was sacrificed at nine hours (G4). The severity of pancreatitis was assessed histopathologically and biochemically. The histopathological scores of pancreatitis in groups 3 and 4 were significantly higher than in groups 1 and 2 (4 vs. 1, 4 vs. 2, 3 vs. 1, 3 vs. 2; P < 0.05). TUNEL-positive apoptotic cells were significantly higher in groups 2 and 3 compared with groups 1 and 4 (P < 0.05). Necrosis was significantly more in group 4 than other groups (37.49% (4.68) vs. 19.97% (1.60) in G2; 20.36% (1.56) in G3; P = 0.006 for G 2 vs. 4 and P = 0.019 for G 3 vs. 4). Electron microscopy revealed numerous autophagosomes in groups 2 and 3 and mitochondrial damage and necrosis in group 4. The pancreatic and pulmonary myeloperoxidase activity in group 4 was significantly higher than that in the other groups (P < 0.01). Hence, severity of pancreatitis is a function of the dose of injurious agent, while inflammation is both dose and duration dependent, which may also explain the wide spectrum of severity of AP seen in clinical practice.
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Affiliation(s)
- Tony G Jacob
- Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India
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Ozaki N, Fukuchi Y, Tomiyoshi SR, Uehara H, Ida S, Wang J, Araki K, Sibilia M, Baba H, Yamamura KI, Ohmuraya M. Autophagy regulation in pancreatic acinar cells is independent of epidermal growth factor receptor signaling. Biochem Biophys Res Commun 2014; 446:224-30. [DOI: 10.1016/j.bbrc.2014.02.111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 02/21/2014] [Indexed: 01/20/2023]
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Ang AD, Rivers-Auty J, Hegde A, Ishii I, Bhatia M. The effect of CSE gene deletion in caerulein-induced acute pancreatitis in the mouse. Am J Physiol Gastrointest Liver Physiol 2013; 305:G712-G721. [PMID: 24008358 DOI: 10.1152/ajpgi.00044.2013] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Hydrogen sulfide (H2S) has been reported to be involved in the signaling of the inflammatory response; however, there are differing views as to whether it is pro- or anti-inflammatory. In this study, we sought to determine whether endogenously synthesized H2S via cystathionine-γ-lyase (CSE) plays a pro- or anti-inflammatory role in caerulein-induced pancreatitis. To investigate this, we used mice genetically deficient in CSE to elucidate the function of CSE in caerulein-induced acute pancreatitis. We compared the inflammatory response and tissue damage of wild-type (WT) and CSE knockout (KO) mice following 10 hourly administrations of 50 μg/kg caerulein or saline control. From this, we found that the CSE KO mice showed significantly less local pancreatic damage as well as acute pancreatitis-associated lung injury compared with the WT mice. There were also lower levels of pancreatic eicosanoid and cytokines, as well as reduced acinar cell NF-κB activation in the CSE KO mice compared with WT mice. Additionally, in WT mice, there was a greater level of pancreatic CSE expression and sulfide-synthesizing activity in caerulein-induced pancreatitis compared with the saline control. When comparing the two saline-treated control groups, we noted that the CSE KO mice showed significantly less pancreatic H2S-synthesizing activity relative to the WT mice. These results indicate that endogenous H2S generated by CSE plays a key proinflammatory role via NF-κB activation in caerulein-induced pancreatitis, and its genetic deletion affords significant protection against acute pancreatitis and associated lung injury.
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Affiliation(s)
- Abel D Ang
- Dept. of Pathology, Univ. of Otago, Christchurch, 2 Riccarton Ave., PO Box 4345, Christchurch 8140, New Zealand.
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Akyazi I, Eraslan E, Gülçubuk A, Ekiz EE, Çırakli ZL, Haktanir D, Bala DA, Özkurt M, Matur E, Özcan M. Long-term aspirin pretreatment in the prevention of cerulein-induced acute pancreatitis in rats. World J Gastroenterol 2013; 19:2894-2903. [PMID: 23704822 PMCID: PMC3660814 DOI: 10.3748/wjg.v19.i19.2894] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 01/15/2013] [Accepted: 02/06/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effects of long term pretreatment with low-, medium- and high-dose aspirin (acetylsalicylic acid, ASA) on a model of acute pancreatitis (AP) induced in rats.
METHODS: Forty male Wistar rats were used. Three experimental groups, each consisting of eight animals, received low- (5 mg/kg per day), medium- (150 mg/kg per day) and high-dose (350 mg/kg per day) ASA in supplemented pellet chow for 100 d. Eight animals, serving as the AP-control group, and another eight, serving as reference value (RV) group, were fed with standard pellet chow for the same period. After pretreatment, AP was induced in the experimental animals by intraperitoneal administration of cerulein (2 × 50 μg/kg), while the RV group received saline in the same way. Twelve hours after the second injection, the animals were sacrificed. Pancreatic tissue and plasma samples were collected. One part of the collected pancreatic tissues was used for histopathological evaluation, and the remaining portion was homogenized. Cytokine levels [tumor necrosis factor, interleukin (IL)-1β, IL-6], hemogram parameters, biochemical parameters (amylase and lipase), nuclear factor-κB, aspirin triggered lipoxins and parameters related to the antioxidant system (malondialdehyde, nitric oxide, hemeoxygenase-1, catalase and superoxide dismutase) were measured.
RESULTS: Cerulein administration induced mild pancreatitis, characterized by interstitial edema (total histopathological score of 5.88 ± 0.44 vs 0.25 ± 0.16, P < 0.001). Subsequent pancreatic tissue damage resulted in an increase in amylase (2829.71 ± 772.48 vs 984.57 ± 49.22 U/L, P = 0.001) and lipase (110.14 ± 75.84 U/L vs 4.71 ± 0.78 U/L, P < 0.001) in plasma, and leucocytes (6.89 ± 0.48 vs 4.36 ± 0.23, P = 0.001) in peripheral blood. Cytokines, IL-1β (18.81 ± 2.55 pg/μg vs 6.65 ± 0.24 pg/μg, P = 0.002) and IL-6 (14.62 ± 1.98 pg/μg vs 9.09 ± 1.36 pg/μg, P = 0.04) in pancreatic tissue also increased. Aspirin pretreatment reduced the increase in the aforementioned parameters to a certain degree and partially improved the histopathological alterations caused by cerulein. No evidence of side effects related to chronic ASA administration (e.g., inflammation or bleeding) was observed in the gastrointestinal tract in macroscopic and histopathological examination.
CONCLUSION: Long term ASA pretreatment could prevent and/or ameliorate certain hematological, serological and histological alterations caused by cerulein-induced AP.
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Ye XH, Chen TZ, Huai JP, Lu GR, Zhuge XJ, Chen RP, Chen WJ, Wang C, Huang ZM. Correlation of fibrinogen-like protein 2 with progression of acute pancreatitis in rats. World J Gastroenterol 2013; 19:2492-2500. [PMID: 23674850 PMCID: PMC3646139 DOI: 10.3748/wjg.v19.i16.2492] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 11/09/2012] [Accepted: 01/05/2013] [Indexed: 02/06/2023] Open
Abstract
AIM To examine fibrinogen-like protein 2 (fgl2) expression during taurocholate-induced acute pancreatitis progression in rats and its correlation with pancreatic injury severity. METHODS Forty-eight male Sprague-Dawley rats were randomly divided into the severe acute pancreatitis (SAP) group (n = 24) and the sham operation (SO) group (n = 24). Sodium taurocholate (4% at doses of 1 mL/kg body weight) was retrogradely injected into the biliopancreatic ducts of the rats to induce SAP. Pancreatic tissues were prepared immediately after sacrifice. At the time of sacrifice, blood was obtained for determination of serum amylase activity and isolation of peripheral blood mononuclear cells (PBMCs). Pancreatic tissue specimens were obtained for routine light microscopy including hematoxylin and eosin staining, and the severity of pancreatic injury was evaluated 1, 4 and 8 h after induction. Expression of fgl2 mRNA was measured in the pancreas and PBMCs using reverse transcription polymerase chain reaction. Expression of fgl2 protein was evaluated in pancreatic tissues using Western blotting and immunohistochemical staining. Masson staining was also performed to observe microthrombosis. RESULTS At each time point, levels of fgl2 mRNAs in pancreatic tissues and PBMCs were higher (P < 0.05) in the SAP group than in the SO group. For pancreatic tissue in SAP vs SO, the levels were: after 1 h, 3.911 ± 1.277 vs 1.000 ± 0.673; after 4 h, 9.850 ± 3.095 vs 1.136 ± 0.609; and after 8 h, 12.870 ± 3.046 vs 1.177 ± 0.458. For PBMCs in SAP vs SO, the levels were: after 1 h, 2.678 ± 1.509 vs 1.000 ± 0.965; after 4 h, 6.922 ± 1.984 vs 1.051 ± 0.781; and after 8 h, 13.533 ± 6.575 vs 1.306 ± 1.179. Levels of fgl2 protein expression as determined by Western blotting and immunohistochemical staining were markedly up-regulated (P < 0.001) in the SAP group compared with those in the SO group. For Western blotting in SAP vs SO, the results were: after 1 h, 2.183 ± 0.115 vs 1.110 ± 0.158; after 4 h, 2.697 ± 0.090 vs 0.947 ± 0.361; and after 8 h, 3.258 ± 0.094 vs 1.208 ± 0.082. For immunohistochemical staining in SAP vs SO, the results were: after 1 h, 1.793 ± 0.463 vs 0.808 ± 0.252; after 4 h, 4.535 ± 0.550 vs 0.871 ± 0.318; and after 8 h, 6.071 ± 0.941 vs 1.020 ± 0.406. Moreover, we observed a positive correlation in the pancreas (r = 0.852, P < 0.001) and PBMCs (r = 0.735, P < 0.001) between fgl2 expression and the severity of pancreatic injury. Masson staining showed that microthrombosis (%) in rats with SAP was increased (P < 0.001) compared with that in the SO group and it was closely correlated with fgl2 expression in the pancreas (r = 0.842, P < 0.001). For Masson staining in SAP vs SO, the results were: after 1 h, 26.880 ± 9.031 vs 8.630 ± 3.739; after 4 h, 53.750 ± 19.039 vs 8.500 ± 4.472; and after 8 h, 80.250 ± 12.915 vs 10.630 ± 7.003. CONCLUSION Microthrombosis due to fgl2 overexpression contributes to pancreatic impairment in rats with SAP, and fgl2 level may serve as a biomarker during early stages of disease.
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Abstract
OBJECTIVES To investigate the role of bone morphogenetic protein (BMP) signaling in acute pancreatitis (AP) by administration of noggin, an endogenous BMP antagonist, in a cerulein-induced AP model. METHODS Acute pancreatitis was induced by 9 hourly intraperitoneal injections of cerulein (50 μg/kg). Control mice received phosphate-buffered saline injections. In a separate group, noggin (0.5 mg/kg) was given intraperitoneally at 1 hour before and 2, 4, and 6 hours after AP induction. The mice were euthanized at 1 hour after completion of AP induction. The blood samples and the pancreas were harvested for analysis. Isolated pancreatic acini from normal mice and AR42J cells were treated with BMP2 and cerulein. AR42J cells were also treated with noggin. Phosphorylation of Smad1/5/8 was measured. RESULTS Bone morphogenetic protein signaling was up-regulated in AP mouse pancreas. Bone morphogenetic protein 2 and cerulein-induced phosphorylation of Smad1/5/8 in the acinar cells in vitro, which was blocked by noggin. Noggin administration in vivo attenuated AP induction, decreased vacuole formation in acinar cells, blocked LC3-II levels, and partially restored Beclin-1 and lysosomal-associated membrane protein 2 levels. CONCLUSIONS Bone morphogenetic protein signaling seems to promote AP induction and autophagy, as suggested by our study showing that noggin ameliorates AP and partially restores autophagic homeostasis.
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Mittal A, Hickey AJR, Chai CC, Loveday BPT, Thompson N, Dare A, Delahunt B, Cooper GJS, Windsor JA, Phillips ARJ. Early organ-specific mitochondrial dysfunction of jejunum and lung found in rats with experimental acute pancreatitis. HPB (Oxford) 2011; 13:332-41. [PMID: 21492333 PMCID: PMC3093645 DOI: 10.1111/j.1477-2574.2010.00290.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Multiple organ dysfunction is the main cause of death in severe acute pancreatitis. Primary mitochondrial dysfunction plays a central role in the development and progression of organ failure in critical illness. The present study investigated mitochondrial function in seven tissues during early experimental acute pancreatitis. METHODS Twenty-eight male Wistar rats (463 ± 2 g; mean ± SEM) were studied. Group 1 (n= 8), saline control; Group 2 (n= 6), caerulein-induced mild acute pancreatitis; Group 3 (n= 7) sham surgical controls; and Group 4 (n= 7), taurocholate-induced severe acute pancreatitis. Animals were euthanased at 6 h from the induction of acute pancreatitis and mitochondrial function was assessed in the heart, lung, liver, kidney, pancreas, duodenum and jejunum by mitochondrial respirometry. RESULTS Significant early mitochondrial dysfunction was present in the pancreas, lung and jejunum in both models of acute pancreatitis, however, the Heart, liver, kidney and duodenal mitochondria were unaffected. CONCLUSIONS The present study provides the first description of early organ-selective mitochondrial dysfunction in the lung and jejunum during acute pancreatitis. Research is now needed to identify the underlying pathophysiology behind the organ selective mitochondrial dysfunction, and the potential benefits of early mitochondrial-specific therapies in acute pancreatitis.
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Affiliation(s)
- Anubhav Mittal
- Department of Surgery, Faculty of Medical and Health SciencesAuckland, New Zealand
| | - Anthony JR Hickey
- The Maurice Wilkins CentreAuckland, New Zealand,School of Biological Sciences, University of AucklandAuckland, New Zealand
| | - Chau C Chai
- School of Biological Sciences, University of AucklandAuckland, New Zealand
| | - Benjamin PT Loveday
- Department of Surgery, Faculty of Medical and Health SciencesAuckland, New Zealand
| | - Nichola Thompson
- Department of Surgery, Faculty of Medical and Health SciencesAuckland, New Zealand
| | - Anna Dare
- Department of Surgery, Faculty of Medical and Health SciencesAuckland, New Zealand
| | - Brett Delahunt
- Department of Pathology and Molecular Medicine, Wellington School of Medicine, University of OtagoWellington, New Zealand
| | - Garth JS Cooper
- The Maurice Wilkins CentreAuckland, New Zealand,School of Biological Sciences, University of AucklandAuckland, New Zealand
| | - John A Windsor
- Department of Surgery, Faculty of Medical and Health SciencesAuckland, New Zealand,The Maurice Wilkins CentreAuckland, New Zealand
| | - Anthony RJ Phillips
- Department of Surgery, Faculty of Medical and Health SciencesAuckland, New Zealand,The Maurice Wilkins CentreAuckland, New Zealand,School of Biological Sciences, University of AucklandAuckland, New Zealand
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Abstract
Hemorrhagic shock (HS) leads to reactive oxygen species production. However, clinicians do not have access to bedside measurements of the redox status during HS. Cyclic voltammetry (CyV) is a simple electrochemical method of measuring redox status. The aims of this study were to 1) report the first application of cyclic voltammetry to measure the acute changes in serum redox status after HS, 2) to contrast it with another severe systemic disease with a different redox pathology (acute pancreatitis [AP]), and 3) to describe the response of CyV over time in a resolving model of AP. In the acute study, 24 male Wistar rats were randomized into three groups: groups 1 (control), 2 (AP), and 3 (HS). In the time-course study, 28 rats were randomized to a sham-control as well as 6 and 24 h post-AP cohorts, respectively.Cyclic voltammetry was performed using a three-electrode system. In the acute study, the first and second voltammetric peaks increased significantly in HS. In contrast, within the AP group, only the first voltammetric peak showed a significant increase. The first voltammetric peak correlated with plasma protein carbonyls (PCs) and with thiobarbituric acid-reactive substances, whereas the second voltammetric peak correlated positively with plasma protein carbonyls. In the second study, the first voltammetric peak correlated with physiological improvements. Here, we showed that serum CyV could respond to the serum redox change in HS and AP. Cyclic voltammetry warrants evaluation as a potential real-time beside measure of a patient's redox status during shock.
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The Potential Effect of Proteasome Inhibitor PS-341 on Severe Acute Pancreatitis Detected by Positron Emission Tomography in ICR Mice. J Surg Res 2010; 162:193-202. [DOI: 10.1016/j.jss.2009.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2008] [Revised: 05/26/2009] [Accepted: 06/09/2009] [Indexed: 01/20/2023]
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Relationship of strain-dependent susceptibility to experimentally induced acute pancreatitis with regulation of Prss1 and Spink3 expression. J Transl Med 2010; 90:654-64. [PMID: 20157294 DOI: 10.1038/labinvest.2010.44] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
To analyze susceptibility to acute pancreatitis, five mouse strains including Japanese Fancy Mouse 1 (JF1), C57BL/6J, BALB/c, CBA/J, and C3H/HeJ were treated with either a cholecystokinin analog, cerulein, or a choline-deficient, ethionine-supplemented (CDE) diet. The severity of acute pancreatitis induced by cerulein was highest in C3H/HeJ and CBA/J, moderate in BALB/c, and mildest in C57BL/6J and JF1. Basal protein expression levels of the serine protease inhibitor, Kazal type 3 (Spink3) were higher in JF1 and C57BL/6J mice than those of the other three strains under normal feeding conditions. After treatment with cerulein, expression level of Spink3 increased remarkably in JF1 and mildly in C57BL/6J, BALB/c, CBA/J, and C3H/HeJ strains. Increased proteinase, serine, 1 (Prss1) protein expression accompanied by increased trypsin activity with cerulein treatment was observed in susceptible strains such as CBA/J and C3H/HeJ. Similar results were obtained with a CDE diet. In the 3 kb Spink3 promoter region, 92 or 8 nucleotide changes were found in JF1 or C3H vs C57BL/6J, respectively, whereas in the Prss1 promoter region 39 or 46 nucleotide changes were found in JF1 or C3H vs C57BL/6J, respectively. These results suggest that regulation of Prss1 and Spink3 expression is involved in the susceptibility to experimentally induced pancreatitis. The JF1 strain, which is derived from the Japanese wild mouse, will be useful to examine new mechanisms that may not be found in other laboratory mouse strains.
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Dahlhoff M, Algül H, Siveke JT, Lesina M, Wanke R, Wartmann T, Halangk W, Schmid RM, Wolf E, Schneider MR. Betacellulin protects from pancreatitis by activating stress-activated protein kinase. Gastroenterology 2010; 138:1585-94, 1594.e1-3. [PMID: 20038432 DOI: 10.1053/j.gastro.2009.12.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Revised: 11/25/2009] [Accepted: 12/15/2009] [Indexed: 12/21/2022]
Abstract
BACKGROUND & AIMS Acute pancreatitis (AP) is a serious, unpredictable clinical problem, the pathophysiology of which is poorly understood. Here, we evaluate whether betacellulin (BTC), a ligand of the epidermal growth factor receptor also able to activate the proapoptotic ERBB4 receptor, can protect against experimental AP. METHODS AP was induced in transgenic mice overexpressing BTC (BTC-tg), control mice, or control mice after administration of recombinant BTC. The severity of pancreatitis was assessed by measurements of serum amylase and lipase and histologic grading. The involvement of the stress-activated protein kinase (SAPK) was evaluated by treating BTC-tg mice with an SAPK inhibitor before induction of AP. RESULTS BTC-tg mice showed increased apoptosis and proliferation in the exocrine pancreas, indicating an increased cell turnover. There was a marked, epidermal growth factor receptor-independent decrease in pancreas weight. After induction of AP by cerulein injection, BTC-tg mice showed a significantly lower increase in serum amylase and lipase levels as well as less pronounced tissue necrosis, edema, and inflammation, as compared to nontransgenic littermates. This protective effect, also confirmed in the L-arginine AP model, was associated with increased phosphorylation of SAPK and abrogated after treatment of BTC-tg mice with a SAPK inhibitor. Finally, the protective effect of BTC against AP was confirmed by treating nontransgenic mice with recombinant BTC. CONCLUSIONS These findings indicate a potential application of the BTC/ERBB4 pathway for modulating the course of AP.
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Affiliation(s)
- Maik Dahlhoff
- Institute of Molecular Animal Breeding and Biotechnology, Gene Center of the LMU Munich, Germany
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Mann O, Kaifi J, Bloechle C, Schneider CG, Yekebas E, Kluth D, Izbicki JR, Strate T. Therapeutic small-volume resuscitation preserves pancreatic microcirculation in acute experimental pancreatitis of graded severity in rats. Pancreatology 2009; 9:652-61. [PMID: 19684429 DOI: 10.1159/000212100] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2008] [Accepted: 08/21/2008] [Indexed: 12/11/2022]
Abstract
BACKGROUND Microcirculatory disorders play a major part in the pathogenesis of acute pancreatitis. Improvement of microcirculation is hypothesized to open a therapeutic window. The aim of this study was to evaluate the effects of small-volume resuscitation in acute pancreatitis. METHODS In rats, acute pancreatitis of graded severity was induced and pancreatic microcirculation was observed in vivo with an epiluminescent microscope. Primary outcome measures were microcirculation, leukocyte adherence, concentration of trypsinogen-activating peptide, amylase activity and histopathologic tissue damage. RESULTS In necrotizing pancreatitis patients receiving prophylactic intervention with 7.5% hypertonic saline the functional capillary density was 76%. Postcapillary venular leukocyte adherence was 45% of vein cross-section. The median histopathologic damage scored 8 points. In controls, a complete microcirculatory breakdown was observed, and in the group with therapeutic intervention no significant difference was detected. In intermediate pancreatitis, the number of perfused capillaries remained 55.0 versus 23.3% in controls. Leukocyte adherence was 40.0 versus 51.7%. The histopathologic damage scored 6.0 versus 9.0 points. Trypsinogen-activating peptide concentration was reduced to 164 versus 402 nM in controls. In cerulein pancreatitis, the number of perfused capillaries was equally preserved in both groups. CONCLUSION Small-volume resuscitation preserves capillary microcirculation and prevents pancreatic injury in intermediate necrotizing pancreatitis.
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Affiliation(s)
- Oliver Mann
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Price-Forbes AN, Filer A, Udeshi UL, Rai A. Progression of imaging in pancreatitis panniculitis polyarthritis (PPP) syndrome. Scand J Rheumatol 2009; 35:72-4. [PMID: 16467048 DOI: 10.1080/03009740500228073] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Lobular panniculitis, together with a polyarthritis may complicate pancreatic disease. Abdominal symptoms are frequently absent and mis-diagnosis of the joint-skin complex can lead to inappropriate treatment in a condition with an already high mortality. We report a case of the pancreatitis panniculitis polyarthritis (PPP) syndrome, complicated by metastatic fat necrosis, with bone marrow involvement and characteristic magnetic resonance imaging (MRI) and describe the clinical characteristics, therapy and outcome of patients affected by the syndrome.
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Affiliation(s)
- A N Price-Forbes
- Rheumatology Department, Selly Oak Hospital, University Hospitals Birmingham NHS Trust, Birmingham, UK.
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Polyarthritis with chondronecrosis associated with osteonecrosis, panniculitis and pancreatitis. Rheumatol Int 2009; 30:1239-42. [PMID: 19575201 DOI: 10.1007/s00296-009-1046-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Accepted: 06/21/2009] [Indexed: 10/20/2022]
Abstract
Arthritis associated with panniculitis complicating pancreatitis is well described in the literature, usually associated with osteonecrosis. Chondronecrosis has not been reported before in association with pancreatitis. We report a patient with chronic pancreatitis who presented with polyarthritis, panniculitis, osteonecrosis, but in addition had clear evidence of chondronecrosis. We suggest that direct extension of noxious materials from nearby subchondral osteonecrotic bone lesion could be the cause of the osteonecrosis and one of the pathological mechanisms leading to arthritis in patients with pancreatitis.
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Ríos-Fernández R, Callejas-Rubio JL, Sánchez-Cano D, Martín-Ruiz JL, Ortego-Centeno N. [Paniculitis, polyarthritis and pancreatitis]. Rev Clin Esp 2008; 208:156-7. [PMID: 18275770 DOI: 10.1157/13115824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- R Ríos-Fernández
- Unidad de Enfermedades Sistémicas, Hospital Clínico San Cecilio, Granada, España
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Redox status of acute pancreatitis as measured by cyclic voltammetry: initial rodent studies to assess disease severity. Crit Care Med 2008; 36:866-72. [PMID: 18431274 DOI: 10.1097/ccm.0b013e318165fa7f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To determine whether serum antioxidant capacity as measured by the electrochemical technique cyclic voltammetry could be used to resolve differences in the severity of an inflammatory disease such as acute pancreatitis. DESIGN Experimental animal study. SETTING Animal laboratory, Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, New Zealand. SUBJECTS Male Wistar rats. INTERVENTIONS A total of 48 inbred male Wistar rats were studied in five experimental groups. Group 1 (baseline reference, immediate euthanasia, n = 14) had no surgical intervention. Group 2 (sham, n = 9) had identical surgical procedures to the pancreatitis groups except for the intraductal infusion. Groups 3-5 (n = 9, n = 10, and n = 6, respectively) had acute pancreatitis induced by the pancreatic intraductal infusion of 3%, 4%, or 5% sodium taurocholate, respectively. Groups 2-5 were killed after 12 hrs. MEASUREMENTS AND MAIN RESULTS Cyclic voltammetry involves scanning the voltage of a working electrode while recording the anodic current produced as the low molecular weight antioxidants in the solution are oxidized on the surface of the working electrode. The current produced is proportional to the combined concentration of the antioxidants. There was a significant positive correlation of the first cyclic voltammetric peak maximum with pancreatic histologic severity (Spearman's r = .51, p = .007) and with a number of other markers of systemic severity, notably bicarbonate (r = -.57, p = .002), base excess (r = -.65, p < .001), urea (r = .68, p < .001), and calcium (r = -.60, p = .008). The first cyclic voltammetric peak maximum was superior at indicating the severity of the disease state compared with a standard method of total antioxidant capacity measurement. CONCLUSIONS In experimental pancreatitis, the first cyclic voltammetric peak maximum showed significant correlations with histologic and systemic indices of severity. Further clinical studies are now needed to define the role of cyclic voltammetry in monitoring the progression of this and other severe illness in the critical care setting.
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Characterisation of a transgenic mouse expressing R122H human cationic trypsinogen. BMC Gastroenterol 2006; 6:30. [PMID: 17069643 PMCID: PMC1637108 DOI: 10.1186/1471-230x-6-30] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2006] [Accepted: 10/27/2006] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The R122H mutation of the cationic trypsinogen was found in patients with hereditary pancreatitis. A transgenic animal carrying this mutation could be useful as a genetic model system of pancreatitis. METHODS Mice transgenic for the human R122H cationic trypsinogen were generated using the -205 fragment of the rat elastase promoter. The presence of the transgene was assayed in the DNA, in pancreatic mRNA and in zymogen granule lysates. Serum levels of amylase, lipase and cytokines (MCP-1, IL-6) were monitored and the histological appearance of the tissue was investigated. Pancreatitis was induced by 7 hourly injections of 50 mug/kg cerulein. The procedure was repeated twice weekly for 10 consecutive weeks. The animals were sacrificed 24 (n = 8) and 48 hours (n = 8) after the first injection and at the end of the whole treatment (n = 7). RESULTS The transgene was detected at the genomic level and in pancreatic mRNA. The corresponding protein was found in low amounts in zymogen granule lysates. R122H mice showed elevated pancreatic lipase, but there was no spontaneous development of pancreatitis within 18 months. After induction of pancreatitis, levels of lipase (after 24 hours) and amylase (after 48 hours) were higher in R122H mice compared to controls. Repeated treatment with cerulein resulted in a slightly more severe pancreatitis in R122H animals. Amylase, lipase, and the cytokine levels were similar to controls. CONCLUSION The R122H transgenic mouse failed to develop a spontaneous pancreatitis but a repeatedly provoked cerulein-induced pancreatitis led to a slightly more severe pancreatitis. The rather small difference in comparison to controls could be due to the low expression of the transgene in the mouse pancreas.
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Alsfasser G, Warshaw AL, Thayer SP, Antoniu B, Laposata M, Lewandrowski KB, Fernández-del Castillo C. Decreased inflammation and improved survival with recombinant human activated protein C treatment in experimental acute pancreatitis. ACTA ACUST UNITED AC 2006; 141:670-6; discussion 676-7. [PMID: 16847238 PMCID: PMC3972126 DOI: 10.1001/archsurg.141.7.670] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
HYPOTHESIS Drotrecogin alfa (activated), the pharmacologic form of activated protein C and the first Food and Drug Administration-approved drug for treatment of severe sepsis, is beneficial in experimental acute pancreatitis (AP). DESIGN Animal study. SETTING Laboratory. SUBJECTS Male Sprague-Dawley rats. INTERVENTIONS Mild (intravenous cerulein) or severe (intravenous cerulein plus intraductal glycodeoxycholic acid) AP was induced in 72 rats, and coagulation evaluated. Rats with severe AP were randomized to treatment with drotrecogin alfa (activated), 100 microg/kg per hour, or isotonic sodium chloride. MAIN OUTCOME MEASURES Histologic scoring of pancreatic necrosis, inflammation of the pancreas and lung (measured by myeloperoxidase concentration), coagulation measures, and 24-hour survival. RESULTS Severe consumptive coagulopathy, hemoconcentration, and leukocytosis were observed 6 hours after induction of severe AP, but not in mild AP. Treatment of AP with drotrecogin did not worsen coagulation measures. Although the degree of pancreatic necrosis was comparable in treated and untreated animals with severe AP, drotrecogin significantly reduced myeloperoxidase levels in the pancreas (P = .009) and lungs (P = .03). The 24-hour survival in severe AP was markedly improved in animals treated with drotrecogin (86% vs 38%; P = .05). CONCLUSIONS Animals with severe AP have severe consumptive coagulopathy, but administration of drotrecogin alfa (activated), 100 microg/kg per hour, does not worsen coagulation abnormalities. Drotrecogin treatment reduces inflammation in the pancreas and lungs and significantly improves survival. These results encourage clinical investigation of drotrecogin in the treatment of severe AP.
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Affiliation(s)
- Guido Alsfasser
- Department of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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Ponzo O, Schreier L, Resnik R, Negri G, Scacchi P, Cresta MA, Wikinski R. Endogenous hypertriglyceridemia intensifies the course of cerulein-induced pancreatitis in rat: relation with changes in the VLDL composition. ANNALS OF NUTRITION AND METABOLISM 2005; 50:37-44. [PMID: 16276074 DOI: 10.1159/000089563] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/26/2004] [Accepted: 05/12/2005] [Indexed: 01/31/2023]
Abstract
AIMS To study if the course of cerulein-induced pancreatitis in rats changes in a state of triglyceride-rich lipoprotein metabolism alteration. METHODS Two groups of rats received control diet during a 90-day period (A) and sucrose-rich diet to induce endogenous hypertriglyceridemia (B). Subgroups A2 and B2 received i.p. 45 microg cerulein/kg body weight (to induce acute pancreatitis). Histological examination of pancreas tissue, serum pancreatic lipase, lipoprotein profile and VLDL chemical composition were assessed. Then, pancreatic lipase hydrolytic activity on VLDL-triglycerides was evaluated in vitro. RESULTS Cellular vacuolization was observed in all of the cerulein-injected rats, but only in subgroup B2 fat necrosis was present. Serum triglycerides were higher in subgroup B1 than in subgroup A1 (mean +/- SEM, mg/dl 123,77 +/- 25.7 vs. 65.8 +/- 7, p < 0.01). Triglycerides from rats fed with sucrose-rich diet, decreased after cerulein-induced pancreatitis (80.38 +/- 11.3 vs. 123,77 +/- 25.7, p < 0.02). Moreover, the endogenous hypertriglyceridemic rats showed an increment of VLDL triglyceride content, which decreased when rats were injected with cerulein. A negative correlation was found between VLDL-triglyceride content and serum pancreatic lipase activity (r = 0.58, p < 0.02). The in vitro assay showed a decrease in VLDL-triglyceride content post incubation with pancreatic lipase enriched serum (mean +/- SD: 59.2 +/- 27.7%, p < 0.01). CONCLUSIONS The endogenous hypertriglyceridemia intensifies the course of cerulein-induced pancreatitis and it could be related to the decrease in VLDL-triglycerides as a consequence of pancreatic lipase hydrolytic activity.
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Affiliation(s)
- O Ponzo
- Department of Physiology, School of Medicine, University of Buenos Aires, Buenos Aires, Argentina.
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Ramos O, Leitão OR, Repka JCD, Barros SGDS. Pancreatite aguda experimental induzida pela L-arginina: avaliação histológica e bioquímica. ARQUIVOS DE GASTROENTEROLOGIA 2005; 42:55-9. [PMID: 15976912 DOI: 10.1590/s0004-28032005000100012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
RACIONAL: Doses excessivas de aminoácidos básicos como a L-arginina têm a capacidade de lesar o pâncreas de ratos. OBJETIVO: Descrever e avaliar as características bioquímicas e histológicas da pancreatite aguda induzida pela L-arginina em ratos durante a instalação, desenvolvimento e reparação do processo inflamatório pancreático. MATERIAL E MÉTODOS: A amostra constituiu-se de 105 ratos machos, da linhagem Wistar. Aos ratos do grupo experimento (n = 70) administrou-se injeção intraperitonial de 500 mg/100 g de peso corporal de L-arginina. No grupo controle (n = 35) foi injetada solução salina isotônica. Analisaram-se 10 animais do grupo experimento e 5 do grupo controle em cada período de 6 h, 12 h, 24 h, 48 h, 72 h, 7 dias e 14 dias. Durante os tempos determinados coletou-se sangue para exames laboratoriais e o pâncreas para análise em microscopia óptica. RESULTADOS: Doze a 24 horas após a injeção de L-arginina os níveis séricos de amilase atingiram valores máximos, comparados àqueles dos ratos controle, decrescendo gradualmente, alcançou-os na 48ªhora sendo significativamente menor após 72 horas e 7 dias. A atividade enzimática retornou a níveis basais após 14 dias. Os valores de amilase estavam normais em todos os tempos avaliados nos animais do grupo controle. Na microscopia óptica, após injeção de L-arginina, observou-se arquitetura pancreática histologicamente preservada no período de 6 horas, evidenciando-se em 24 horas importante edema intersticial. Após 48 horas, a arquitetura acinar estava parcialmente destruída com necrose celular focal, atingindo sua máxima severidade ao ultrapassar 72 horas. No 7º dia a necrose tecidual e o edema haviam diminuído, iniciando-se a regeneração da arquitetura acinar. Observou-se a reconstrução estrutural pancreática após 14 dias. No grupo controle não se encontraram alterações histológicas pancreáticas. CONCLUSÃO: A pancreatite aguda experimental induzida pela L-arginina induz a necrose pancreática, apresentando evolução auto-limitada com regeneração do pâncreas em 2 semanas.
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Affiliation(s)
- Odery Ramos
- Faculdade Evangélica do Paraná, Curitiba, PR
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Top PC, Tissing WJE, Kuiper JW, Pieters R, van Eijck CHJ. L-asparaginase-induced severe necrotizing pancreatitis successfully treated with percutaneous drainage. Pediatr Blood Cancer 2005; 44:95-7. [PMID: 15368548 DOI: 10.1002/pbc.20187] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
L-asparaginase is a key component of the antileukemic therapy in children with acute lymphoblastic leukemia (ALL). Pancreatitis has been noted to be a complication in 2-16% of patients undergoing treatment with L-asparaginase for a variety of pediatric neoplasms. Most cases of pancreatitis associated with L-asparaginase toxicity are self-limiting and respond favorably to nasogastric decompression and intravenous hyperalimentation. However, in rare instances, hemorrhagic pancreatitis or necrosis may occur. L-asparaginase-induced pancreatitis is an uncommon but potential lethal complication of the treatment of leukemia. We present a pediatric patient with leukemia and a severe, L-asparaginase-induced necrotizing pancreatitis, treated successfully with percutaneous drainage used to flush the infected necrotic parts.
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Affiliation(s)
- P C Top
- Department of Pediatric Oncology/Hematology, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
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