Publication date: 30 August 2017
Source:Gene, Volume 626
Author(s): Wenjuan Liu, Honghong Li, Yan Wang, Xinyao Zhao, Yuanying Guo, Jing Jin, Rongxiang Chi
Increasing evidence has demonstrated that aberrant microRNAs (miRNAs) play important roles in the pathogenesis of most human malignancies. The purpose of this study was to explore the role of miR-30b-5p in human RCC. In the current study, we firstly found that the expression levels of miR-30b-5p were lower in both RCC tissues and cell lines. Then, we found that enforced miR-30b-5p expression and knockdown of GNA13 significantly suppressed the proliferation, invasion, migration and EMT of RCC cell lines. In addition, miR-30b-5p directly targeted GNA13 and repressed its expression. Furthermore, re-expression of GNA13 (without the 3′-UTR) could partially abrogate the miR-30b-5p-induced cell proliferation and metastasis inhibition. Taken together, these findings indicated that miR-30b-5p acts as a novel tumor suppressor to regulate RCC cell proliferation, metastasis and EMT through downregulation of GNA13 expression. Therefore, miR-30b-5p may be considered a potential biomarker for the diagnosis of RCC.
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