Epigenetic regulation of telomerase expression in HIV-1-specific CD8+ T cells

AIDS. 2010 Jul 31;24(12):1964-6. doi: 10.1097/QAD.0b013e32833c7170.

Abstract

Telomerase activity in HIV-1-specific CD8(+) T cells from controllers contributes to the maintenance of highly functional cytotoxic T cell responses against HIV-1. Here, we show that high expression of telomerase in controllers is associated with hypermethylation at the distal and hypomethylation at the proximal human telomerase catalytic subunit promoter, whereas HIV-1-specific CD8(+) T cells from progressors showed an inverse pattern with distal promoter hypomethylation and proximal promoter hypermethylation. These data suggest distinct epigenetic signatures in HIV-1-specific T cells in progressors and controllers.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • CD8-Positive T-Lymphocytes / immunology*
  • Female
  • Gene Expression Regulation
  • HIV Infections / genetics
  • HIV Infections / immunology*
  • HIV-1 / genetics
  • HIV-1 / immunology*
  • Humans
  • Male
  • T-Lymphocytes, Cytotoxic / immunology
  • Telomerase / genetics
  • Telomerase / immunology*
  • Viral Load

Substances

  • Telomerase