Selective inhibitor of histone deacetylase 6 (tubastatin A) suppresses proliferation of hepatitis C virus replicon in culture of human hepatocytes

Biochemistry (Mosc). 2014 Jul;79(7):637-42. doi: 10.1134/S0006297914070050.

Abstract

Acetylation of α-tubulin was studied in cultures of human hepatocytes under the influence of selective inhibitors of histone deacetylases HDAC6 and SIRT-2 - tubastatin A and 2-(3-phenethoxyphenylamino)benzamide, respectively. It was found that in hepatocyte cell line HepG2 acetylated α-tubulin is accumulated preferentially on inhibition of HDAC6 but not of SIRT-2. Under the same conditions, no acetylation of α-tubulin was observed in hepatocyte cell line Huh7. However, the inhibition of HDAC6 with tubastatin A led to hyperacetylation of α-tubulin and simultaneously to decrease in viral RNA concentration in hepatocyte cell line Huh7-luc/neo, which supports propagation of the full genome replicon of hepatitis C virus. The correlation between these two processes points to HDAC6 as a promising cellular target for therapy of hepatitis C.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetylation
  • Antiviral Agents / pharmacology*
  • Drug Evaluation, Preclinical
  • Hep G2 Cells
  • Hepacivirus / drug effects
  • Hepacivirus / physiology*
  • Hepatocytes / virology
  • Histone Deacetylase 6
  • Histone Deacetylase Inhibitors / pharmacology*
  • Histone Deacetylases / metabolism
  • Humans
  • Hydroxamic Acids / pharmacology*
  • Indoles / pharmacology*
  • Protein Processing, Post-Translational
  • Replicon / genetics
  • Sirtuin 2 / metabolism
  • Tubulin / metabolism
  • Virus Replication

Substances

  • Antiviral Agents
  • Histone Deacetylase Inhibitors
  • Hydroxamic Acids
  • Indoles
  • Tubulin
  • tubastatin A
  • SIRT2 protein, human
  • Sirtuin 2
  • HDAC6 protein, human
  • Histone Deacetylase 6
  • Histone Deacetylases