High levels of CD57+CD28- T-cells, low T-cell proliferation and preferential expansion of terminally differentiated CD4+ T-cells in HIV-elite controllers

Curr HIV Res. 2010 Sep;8(6):471-81. doi: 10.2174/157016210793499268.

Abstract

The study of clinical and demographic characteristics related to virus control and disease progression in patients who spontaneously control HIV vireamia (HIV-controllers) is of major interest. A particular cause of HIV control has not been found and the scenario could be partially explained by special homeostatic and immunological features. In this study, CD57+CD28- phenotype, T-cell activation and levels of proliferating T-cells in elite-controllers were studied in relation to spontaneous virus control. In HIV-controllers, 9% were AIDS-diagnosed and there was a high proportion of women. In elite-controllers, high T-cell CD57+CD28- phenotype and activation levels were found and, interestingly, there was a low proliferation of total and naïve T-cells and a high proliferation of the CD4+ T(EM)RA subset. Low T-cell proliferation and preferential expansion of terminally differentiated effector T-cell subsets could be an important factor for virus control in elite-controllers.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • CD28 Antigens / immunology*
  • CD4 Lymphocyte Count
  • CD4-Positive T-Lymphocytes / immunology*
  • CD57 Antigens / immunology*
  • CD8-Positive T-Lymphocytes / immunology
  • Female
  • HIV Infections / immunology*
  • HIV Infections / virology
  • HIV Long-Term Survivors*
  • HIV Seropositivity / immunology
  • HIV Seropositivity / virology
  • HIV-1 / immunology
  • HIV-2 / immunology
  • Humans
  • Male
  • Middle Aged
  • Spain
  • T-Lymphocyte Subsets / immunology*

Substances

  • CD28 Antigens
  • CD57 Antigens