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Title: miR-195 inhibits tumor growth and angiogenesis through modulating IRS1 in breast cancer. Author: Wang Y, Zhang X, Zou C, Kung HF, Lin MC, Dress A, Wardle F, Jiang BH, Lai L. Journal: Biomed Pharmacother; 2016 May; 80():95-101. PubMed ID: 27133044. Abstract: Angiogenesis has been found as an attractive target for drug therapy as it is necessary for tumor growth. Accumulating evidences show that microRNAs (miRNAs), which are a group of highly conserved, single-stranded, short non-coding RNAs, play important roles through directly targeting angiogenic factors and protein kinases. The purpose of this study is to investigate the role of miR-195 in breast cancer development and angiogenesis through targeting IRS1. We show that miR-195 is inversely related with Insulin receptor substrate 1 (IRS1) in both breast cancer cells and breast cancer tissues. Induction of miR-195 could suppress IRS1 protein expression through binding to its 3'UTR regions either by transfection with miR-195 oligo or by infection with lentivirus encoding miR-195 gene. Moreover, re-expression of IRS1 reverses miR-195-mediated repression of tumor cell growth and miR-195 inhibits tumor angiogenesis through suppressing IRS1-VEGF axis. These data suggest that miR-195 mimics are potential therapeutic agents for breast cancer diagnose.[Abstract] [Full Text] [Related] [New Search]