The miR-183/96/182 cluster regulates oxidative apoptosis and sensitizes cells to chemotherapy in gliomas

Curr Cancer Drug Targets. 2013 Feb;13(2):221-31. doi: 10.2174/1568009611313020010.

Abstract

Many microRNAs reside in clusters in the genome, are generally similar in sequence, are transcribed in the same direction, and usually function synergistically. The miR-183/96/182 cluster is composed of 3 miRNA genes, and increased expression of miR-183, 96 and 182 are implicated in glioma carcinogenesis. Knockdown of individual components or of the entire miR-183/96/182 cluster inhibits the survival of glioma cells by regulating the ROS-induced apoptosis pathway. Furthermore, inhibition of the miR-183/96/182 cluster induced ROS-mediated AKT/survival independent of three target genes FGF9, CPEB1, and FOXO1, and inhibition of the miRNA cluster induced p53/apoptosis signaling, which was dependent on these same genes. In addition, knockdown of the miR-183/96/182 cluster enhanced the anticancer effect of Temozolomide on glioma cells by the ROS-mediated apoptosis pathway. Therefore, the miR-183/96/182 cluster may be a pleiotropic target for glioma therapy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Apoptosis / genetics*
  • Base Sequence
  • Brain Neoplasms / drug therapy*
  • Brain Neoplasms / genetics
  • Brain Neoplasms / pathology
  • Cell Line, Tumor
  • DNA Primers
  • Glioma / drug therapy*
  • Glioma / genetics
  • Glioma / pathology
  • Humans
  • MicroRNAs / physiology*
  • Oxidative Stress*
  • Real-Time Polymerase Chain Reaction

Substances

  • DNA Primers
  • MIRN183 microRNA, human
  • MIRN96 microRNA, human
  • MicroRNAs
  • Mirn182 microRNA, human