Differential impact of magnitude, polyfunctional capacity, and specificity of HIV-specific CD8+ T cell responses on HIV set point

J Virol. 2014 Feb;88(3):1819-24. doi: 10.1128/JVI.02968-13. Epub 2013 Nov 13.

Abstract

Defining the characteristics of HIV-specific CD8(+) T cell responses that lead to viral control is crucial for vaccine development. We evaluated the differential impact of magnitude, polyfunctional capacity, and specificity of the CD8(+) response at approximately 6 months postinfection on the viral set point at 12 months in a cohort of HIV-infected individuals. High frequencies of Gag and Nef responses endowed with four functions were the best predictors of a low viral set point.

Publication types

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

MeSH terms

  • CD8-Positive T-Lymphocytes / immunology*
  • CD8-Positive T-Lymphocytes / virology
  • Cohort Studies
  • Female
  • HIV Infections / immunology*
  • HIV Infections / virology*
  • HIV-1 / genetics
  • HIV-1 / immunology*
  • HIV-1 / physiology
  • Humans
  • Viral Load
  • env Gene Products, Human Immunodeficiency Virus / genetics
  • env Gene Products, Human Immunodeficiency Virus / immunology
  • gag Gene Products, Human Immunodeficiency Virus / genetics
  • gag Gene Products, Human Immunodeficiency Virus / immunology
  • nef Gene Products, Human Immunodeficiency Virus / genetics
  • nef Gene Products, Human Immunodeficiency Virus / immunology

Substances

  • env Gene Products, Human Immunodeficiency Virus
  • gag Gene Products, Human Immunodeficiency Virus
  • nef Gene Products, Human Immunodeficiency Virus