Natural killer cell heterogeneity: Cellular dysfunction and significance in HIV-1 immuno-pathogenesis

A. Wahid Ansari, Fareed Ahmad, Dirk Meyer-Olson, Adeeba Kamarulzaman, Roland Jacobs, Reinhold E. Schmidt

Research output: Contribution to journalReview ArticleResearchpeer-review

15 Citations (Scopus)

Abstract

Natural killer (NK) cells are innate immune effectors that provide first line of defence against viruses. Human NK cells are heterogeneous in nature, and their functions rely on a dynamic balance between germ-line-encoded activating and inhibitory receptors. HIV-1 infection results in altered NK cell receptor repertoire and impaired effector functions including the ability to lyse virus-infected cells and secretion of antiviral cytokine IFN-γ. Over the last decade, additional NK cell subset-specific molecules have been identified, leading to emergence of a more complex cellular diversity than previously thought. Herein, we discuss NK cell subset redistribution, altered receptor repertoire and influence of interaction of polymorphic leucocyte antigen (HLA) and killer cell immunoglobulin-like receptors (KIR) on HIV-1 disease progression.

Original languageEnglish
Pages (from-to)3037-3049
Number of pages13
JournalCellular and Molecular Life Sciences
Volume72
Issue number16
DOIs
Publication statusPublished - 25 Aug 2015
Externally publishedYes

Keywords

  • Antibody-dependent cellular cytotoxicity
  • CD56 dim and bright
  • Granzyme B
  • Highly active antiretroviral therapy
  • Innate immunity

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