Tgf-Beta 1 Targets A Microrna Network That Regulates Cellular Adhesion And Migration In Renal Cancer
CANCER LETTERS(2018)
摘要
In our previous study we found altered expression of 19 adhesion-related genes in renal tumors. In this study we hypothesized that disturbed expression of adhesion-related genes could be caused by microRNAs: short, non-coding RNAS that regulate gene expression. Here, we found that expression of 24 microRNAs predicted to target adhesion-related genes was disturbed in renal tumors and correlated with expression of their predicted targets. miR-25-3p, miR-30a-5p, miR-328 and miR-363-3p directly targeted adhesion-related genes, including COL5A1, COL11A1, 1TGA5, MMP16 and THBS2. miR-363-3p and miR-328 inhibited proliferation of renal cancer cells, while miR-25-3p inhibited adhesion, promoted proliferation and migration of renal cancer cells. TGF-beta 1 influenced the expression of miR-25-3p, miR-30a-5p, and miR-328. The analyzed microRNAs, their target genes and TGF-beta 1 formed a network of strong correlations in tissue samples from renal cancer patients. The expression signature of microRNAs linked with TGF-beta 1 levels correlated with poor survival of renal cancer patients. The results of our study suggest that TGF-beta 1 coordinates the expression of microRNA network that regulates cellular adhesion in cancer. (C) 2017 Elsevier B.V. All rights reserved.
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关键词
Renal cancer,TGF-beta 1,microRNA,miR-25-3p,Adhesion
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