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Published on: July 20, 2014
miR-374a promotes cell proliferation, migration and invasion by targeting SRCIN1 in gastric cancer
Xinyun Xu1, Weijun Wang1, Ning Su1
1Department of General Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China.
Abstract:
MicroRNAs (miRNAs) play a prominent role in gastric cancer (GC) initiation and progression. In this study, we found that miR-374a expression was up-regulated in human GC cell lines and tissues. Inhibition of miR-374a suppressed GC cell proliferation, migration and invasion in vitro and slowed tumor growth in vivo. SRC kinase signaling inhibitor 1 (SRCIN1) was identified as a direct target of miR-374a. Silencing of SRCIN1 significantly enhanced cell proliferation, migration and invasion, whereas SRCIN1 reintroduction partially abrogated the oncogenic effects of miR-374a. Taken together, these findings suggest that miR-374a functions as a candidate oncogene in GC by directly targeting SRCIN1. miR-374a may therefore be useful as a promising therapeutic target for malignant GC.
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