Downregulation of microRNA-206 suppresses clear cell renal carcinoma proliferation and invasion by targeting vascular endothelial growth factor A

Oncol Rep. 2016 Mar;35(3):1778-86. doi: 10.3892/or.2015.4538. Epub 2015 Dec 30.

Abstract

MicroRNA-206 (miR-206) has been discovered to have anticancer properties in different tissues. However, the role of miR-206 on renal carcinoma is still ambiguous. In the present study, we investigated the role of miR-206 on the development of renal carcinoma. The results indicated that miR-206 was significantly downregulated in 69 clear cell renal carcinoma (ccRCC) tissues and low-level of miR-206 related to shorter metastasis-free survival time for patients with ccRCC. The results indicated that vascular endothelial growth factor A (VEGFA) was a direct target of miR-206 in renal cancer cells. Further studies revealed that upregulation of miR-206 inhibited renal cancer cell proliferation, invasion and migration, suggesting that miR-206 functioned as a tumor suppressor. RNA interference targeting VEGFA mRNA could mimic the upregulation of miR-206 functions, and also suppressed tumor formation in vivo in nude mice. These results suggest that miR-206 plays an important role in ccRCC tumorigenesis by targeting VEGFA.

Publication types

  • Research Support, Non-U.S. Gov't
  • Retracted Publication

MeSH terms

  • Adult
  • Aged
  • Animals
  • Carcinogenesis / genetics*
  • Carcinoma, Renal Cell / genetics*
  • Carcinoma, Renal Cell / pathology
  • Cell Proliferation / genetics
  • Disease-Free Survival
  • Female
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Male
  • Mice
  • MicroRNAs / genetics*
  • Middle Aged
  • Neoplasm Invasiveness / genetics
  • Neoplasm Invasiveness / pathology
  • Neoplasm Metastasis
  • RNA, Messenger / biosynthesis
  • Vascular Endothelial Growth Factor A / biosynthesis*
  • Vascular Endothelial Growth Factor A / genetics
  • Xenograft Model Antitumor Assays

Substances

  • MIRN206 microRNA, human
  • MicroRNAs
  • RNA, Messenger
  • VEGFA protein, human
  • Vascular Endothelial Growth Factor A