MiR-200c sensitizes clear-cell renal cell carcinoma cells to sorafenib and imatinib by targeting heme oxygenase-1

Neoplasma. 2014;61(6):680-9. doi: 10.4149/neo_2014_083.

Abstract

Clear-cell renal cell carcinoma is a highly treatment-resistant tumor type. Heme oxygenase-1 plays an anti-apoptotic role in cancer chemotherapeutic inducing tumor-progression. The miR-200 family was involved in the process of mesenchymal-epithelial transition (MET) during renal development. In the present study, we demonstrated the regulatory relationship between miR-200c and HO-1. We provided evidences to elucidate that miR-200c could sensitize ccRCC cells to sorafenib or imatinib to inhibit cell proliferation, at least partly by targeting HO-1. Moreover, the correlation between miR-200c and HO-1 expression level and drug resistance in ccRCC was also determined. Combined application with chemotherapeutic drugs, miR-200c, a HO-1 inhibitor, may enhance the efficiency of therapy by promoting both apoptosis and autophagy.

MeSH terms

  • Antineoplastic Agents / pharmacology*
  • Benzamides / pharmacology*
  • Carcinoma, Renal Cell / drug therapy*
  • Carcinoma, Renal Cell / pathology
  • Cell Line, Tumor
  • DNA Methylation
  • Heme Oxygenase-1 / antagonists & inhibitors*
  • Heme Oxygenase-1 / genetics
  • Humans
  • Imatinib Mesylate
  • Kidney Neoplasms / drug therapy*
  • Kidney Neoplasms / pathology
  • MicroRNAs / genetics
  • MicroRNAs / physiology*
  • Niacinamide / analogs & derivatives*
  • Niacinamide / pharmacology
  • Phenylurea Compounds / pharmacology*
  • Piperazines / pharmacology*
  • Promoter Regions, Genetic
  • Pyrimidines / pharmacology*
  • Sorafenib

Substances

  • Antineoplastic Agents
  • Benzamides
  • MIRN200 microRNA, human
  • MicroRNAs
  • Phenylurea Compounds
  • Piperazines
  • Pyrimidines
  • Niacinamide
  • Imatinib Mesylate
  • Sorafenib
  • Heme Oxygenase-1