Inhibition of cell proliferation and migration by miR-509-3p that targets CDK2, Rac1, and PIK3C2A

Sena Yoon, Eunji Han, Young Chul Choi, Honghwan Kee, Yongsu Jeong, Jaeseung Yoon, Kwanghee Baek

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

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 languageEnglish
Pages (from-to)314-321
Number of pages8
JournalMolecules and Cells
Volume37
Issue number4
DOIs
Publication statusPublished - Apr 2014

Keywords

  • CDK2
  • Growth inhibition
  • PIK3C2A
  • Rac1
  • miR-509-3p
  • microRNA

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