The function of CD3+CD56+ NKT-like cells in HIV-infected individuals

Biomed Res Int. 2014:2014:863625. doi: 10.1155/2014/863625. Epub 2014 Mar 20.

Abstract

CD3(+)CD56(+) NKT-like cells are one of the critical effectors in the immune response to viral infection and tumors, but the functional features of NKT-like cells in HIV infection have been rarely reported. In this study, we observed and described the state of NKT-like cell functions in primary HIV-infected individuals (PHIs), chronic HIV-infected individuals (CHIs), long-term nonprogressors (LTNPs), and HIV-negative controls (NCs). The results showed that the percentage of IFN-γ(+)CD3(+)CD56(+) NKT-like cells was notably higher in LTNPs compared with CHIs, and the proportion of CD3(+)CD56(+) NKT-like cells with dual function (IFN-γ(+)CD107a(+) NKT-like cells) in LTNPs was also much higher than in CHIs. Additionally, the percentages of IFN-γ(+)CD107a(+) NKT-like cells negatively correlated with viral load. Taken together, our data demonstrated that good functions of CD3(+)CD56(+) NKT-like cells in LTNPs likely occurred as a protective mechanism that slows down HIV disease progression.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • CD3 Complex / metabolism
  • CD56 Antigen / metabolism
  • Disease Progression
  • Female
  • HIV / immunology
  • HIV / pathogenicity
  • HIV Infections / immunology*
  • HIV Infections / metabolism
  • HIV Infections / pathology
  • HIV Infections / virology
  • Humans
  • Interferon-gamma / metabolism*
  • Killer Cells, Natural / metabolism*
  • Lysosomal-Associated Membrane Protein 1 / metabolism
  • Male
  • Middle Aged
  • Viral Load / immunology

Substances

  • CD3 Complex
  • CD56 Antigen
  • Lysosomal-Associated Membrane Protein 1
  • NCAM1 protein, human
  • Interferon-gamma