Abstract
CDK2 is a key regulator of cell cycle progression. In this study, we screened for miRNAs targeting CDK2 using a luciferase-3′-untranslated region reporter assay. Among 11 hit miRNAs, miR-509-3p reduced CDK2 protein levels and significantly inhibited cancer cell growth. Microarray, Western blotting, and luciferase reporter analyses revealed additional targets of miR-509-3p, including Rac1 and PIK3C2A. Overexpression of miR-509-3p induced G1 cell-cycle arrest and inhibited colony formation and migration. RNAi experiments indicated that the growth-inhibitory effects of miR-509-3p may occur through down-regulation of CDK2, Rac1, and PIK3C2A. Targeting of multiple growth regulatory genes by miR-509-3p may contribute to effective anti-cancer therapy.
Original language | English |
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Pages (from-to) | 314-321 |
Number of pages | 8 |
Journal | Molecules and Cells |
Volume | 37 |
Issue number | 4 |
DOIs | |
Publication status | Published - Apr 2014 |
Keywords
- CDK2
- Growth inhibition
- PIK3C2A
- Rac1
- miR-509-3p
- microRNA