Up-regulation of prohibitin 1 is involved in the proliferation and migration of liver cancer cells

Sci China Life Sci. 2011 Feb;54(2):121-7. doi: 10.1007/s11427-010-4130-1. Epub 2011 Feb 14.

Abstract

Although prohibitin 1 (PHB) is known to be associated with tumors, there are few studies regarding the role of PHB in hepatocellular carcinoma. An earlier glycoproteomics study of ours showed that PHB is over-expressed in MHCC97-H cells, a highly metastatic liver cancer cell line, and can be captured by wheat germ agglutinin. In the present study, western blotting and reverse transcription-PCR experiments showed an approximately 2-fold up-regulation in the expression of PHB in MHCC97-H cells. However, PHB was not significantly up-regulated in MHCC97-L cells, a low-metastatic liver cancer cell line. When PHB was over-expressed in MHCC97-L cells, cell proliferation was inhibited by 35% and migration increased about 2-fold. The results of this study show that PHB is up-regulated in MHCC97-H cells and is associated with both proliferation and migration of liver cancer cells.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Line, Tumor
  • Cell Movement*
  • Cell Proliferation*
  • Humans
  • Liver Neoplasms / pathology*
  • Liver Neoplasms / physiopathology*
  • Peptide Mapping
  • Prohibitins
  • Repressor Proteins / genetics
  • Repressor Proteins / metabolism*
  • Tandem Mass Spectrometry
  • Up-Regulation*

Substances

  • PHB protein, human
  • Prohibitins
  • Repressor Proteins