MiR-144 suppresses cell proliferation, migration, and invasion in hepatocellular carcinoma by targeting SMAD4
Authors Yu M, Lin Y, Zhou Y, Jin H, Hou B, Wu Z, Li Z, Jian Z, Sun J
Received 8 May 2015
Accepted for publication 24 November 2015
Published 29 July 2016 Volume 2016:9 Pages 4705—4714
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Jing Zhang
Peer reviewer comments 4
Editor who approved publication: Dr Faris Farassati
Min Yu,* Ye Lin,* Yu Zhou, Haosheng Jin, Baohua Hou, Zhongshi Wu, Zhide Li, Zhixiang Jian, Jian Sun
Department of General Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, People’s Republic of China
*These authors contributed equally to this work
Background/aim: Increasing evidence show microRNAs (miRNAs) are engaged in hepatocellular carcinoma (HCC). The aim of this study was to investigate the role of miR-144 in HCC, as well as to identify its underlying mechanism.
Methods: The expression levels of miR-144 were assessed in multiple HCC cell lines, as well as in liver tissues from patients with HCC. We further examined the effects of miR-144 on HCC. The molecular target of miR-144 was identified using a computer algorithm and confirmed experimentally.
Results: We found that the levels of miR-144 were frequently downregulated in human HCC tissues and cell lines, and overexpression of miR-144 dramatically inhibited HCC metastasis, invasion, cell cycle, epithelial–mesenchymal transition, and chemoresistance. We further verified the SMAD4 as a novel and direct target of miR-144 in HCCs.
Conclusion: Taken together, overexpression of miR-144 or downregulation of SMAD4 may prove beneficial as therapeutic strategies for HCC treatment.
Keywords: microRNA, liver cancer, therapeautic target
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