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Biochem Biophys Res Commun. 2013 May 24;435(1):82-7. doi: 10.1016/j.bbrc.2013.04.042. Epub 2013 Apr 22.

MicroRNA-101 suppresses motility of bladder cancer cells by targeting c-Met.

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1
Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, Zhejiang 310003, PR China.

Abstract

MicroRNAs (miRNAs) are small non-coding RNAs that play regulatory roles by repressing translation or cleaving RNA transcripts. Here, we report that the expression of microRNA-101 (miR-101) is down-regulated in human bladder cancer tissue versus normal adjacent tissue. To better characterize the role of miR-101 in bladder cancer, we conducted a gain-of-function analysis by transfecting the bladder cancer cell line T24 with chemically synthesized miR-101 mimics. We found that miR-101 directly targets c-Met via its 3'-UTR. Specifically, forced expression of miR-101 decreased c-Met expression at both mRNA and protein levels, consequently inhibiting T24 cell migration and invasion in a c-Met-dependent manner. In conclusion, we have shown miR-101 to be a novel suppressor of T24 cell migration and invasion through its negative regulation of c-Met.

PMID:
23618864
DOI:
10.1016/j.bbrc.2013.04.042
[Indexed for MEDLINE]
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