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Jun-Wei Yan, Jia-Zhi Liao, Ju-Sheng Lin, Xing-Xing He
Jun-Wei Yan, Jia-Zhi Liao, Ju-Sheng Lin, Xing-Xing He, Institute of Liver Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei province, China
Supported by: the National Natural Science Foundation of China, No. 81101824; and the Outstanding Youth Science Foundation of Tongji Hospital, No. YXQN005
Correspondence to: Xing-Xing He, Research Assistant, Institute of Liver Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan 430030, Hubei Province, China. xxhe@tjh.tjmu.edu.cn
Received: December 2, 2013 Revised: December 19, 2013 Accepted: December 27, 2013 Published online: February 18, 2014
MicroRNAs (miRNAs) are a group of small non-coding RNAs that regulate gene expression post-transcriptionally. A large body of evidence has indicated that dysregulation of miRNAs is an important hallmark of cancer. MiRNAs modulate malignant phenotypes of cancer by repressing many critical oncogenes or tumor suppressors. MiR-375 was firstly identified in pancreatic beta-cells and it can regulate insulin secretion and pancreatic development. Further studies found that miR-375 is significantly downregulated in multiple types of tumors, especially digestive system tumors, such as hepatocellular carcinoma, gastric cancer, esophageal cancer, and pancreatic cancer. Overexpression of miR-375 represses target genes, such as AEG-1, JAK2, ATG7, IGF1R, PDK1, 14-3-3Z and YAP1, and thereby inhibits malignant properties of cancer. It is also found that miR-375 in tissues or circulation could be used as a biomarker for diagnosis or prognosis prediction in digestive system tumors. Since miR-375 play an important role in the initiation and progression of digestive system tumors, it can become a novel therapeutic target. Monitoring the levels of miR-375 may contribute to the early diagnosis and prognosis prediction.
Key Words: MiR-375; Tumor suppressor; Cancer
Citation: Yan JW, Liao JZ, Lin JS, He XX. Roles of miR-375 in digestive tumors. Shijie Huaren Xiaohua Zazhi 2014; 22(5): 654-660
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