MiR-605 represses PSMD10/Gankyrin and inhibits intrahepatic cholangiocarcinoma cell progression

FEBS Lett. 2014 Sep 17;588(18):3491-500. doi: 10.1016/j.febslet.2014.08.008. Epub 2014 Aug 14.

Abstract

The aberrant expression of PSMD10 has important functions in various malignancies. This study showed that PSMD10 was highly expressed and inversely correlated with the expression of miR-605 in intrahepatic cholangiocarcinoma (ICC) specimens. MiR-605 directly targeted and repressed PSMD10 expression. In addition, over-expression of miR-605 inhibited ICC cell progression both in vitro and in vivo. This effect of miR-605 on ICC cells was similar to that of PSMD10 knock-down by RNAi. Moreover, restoration of PSMD10 could reverse the phenotypic alteration caused by miR-605 in ICC cells. These results suggest a new therapeutic strategy in ICC by restoring miR-605, which is regulated by p53.

Keywords: Apoptosis; Intrahepatic cholangiocarcinoma; Invasion; Proteasome 26S subunit non-ATPase 10; miR-605.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 3' Untranslated Regions
  • Animals
  • Apoptosis
  • Bile Duct Neoplasms / genetics
  • Bile Duct Neoplasms / metabolism*
  • Bile Duct Neoplasms / pathology
  • Bile Ducts, Intrahepatic / metabolism*
  • Bile Ducts, Intrahepatic / pathology
  • Binding Sites
  • Cell Line, Tumor
  • Cell Proliferation
  • Cholangiocarcinoma / genetics
  • Cholangiocarcinoma / metabolism*
  • Cholangiocarcinoma / pathology
  • Gene Expression
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Mice
  • Mice, Inbred BALB C
  • Mice, Nude
  • MicroRNAs / physiology*
  • Neoplasm Invasiveness
  • Neoplasm Transplantation
  • Promoter Regions, Genetic
  • Proteasome Endopeptidase Complex / genetics*
  • Proteasome Endopeptidase Complex / metabolism
  • Proto-Oncogene Proteins / genetics*
  • Proto-Oncogene Proteins / metabolism
  • RNA Interference
  • Tumor Burden

Substances

  • 3' Untranslated Regions
  • MIRN605 microRNA, human
  • MicroRNAs
  • PSMD10 protein, human
  • Proto-Oncogene Proteins
  • Proteasome Endopeptidase Complex