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Open Access Green as soon as Postprint is submitted to ZB.
Autologous cytotoxicity of natural killer cells derived from HIV-infected patients.
Immunol. Lett. 91, 155-158 (2004)
NK cells recognize target cells with reduced expression of MHC class I molecules. Human immunodeficiency virus (HIV) infection decreases MHC class I on the cell membrane. The aim of this study was to directly evaluate the role and conditions of NK cell effects in HIV seropositive patients ex vivo. Autologous HIV-infected CD4+ T cells were exposed to NK cells recognition. We discovered an increased lysis of the target cells after infection with human immunodeficiency virus-1 (HIV-1). The expression of the HIV-1 nef gene or the combined expression of nef and tat confers NK susceptibility to autologous CD4+ targets. Downregulation of MHC class I but not HLA-C or CD4 correlated with increased recognition by NK cells. The specific recognition is correlated with downregulation of MHC class I molecules on the infected target cells.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Hiv ; Mhc Class I ; Nk
ISSN (print) / ISBN
0165-2478
e-ISSN
1879-0542
Journal
Immunology Letters
Quellenangaben
Volume: 91,
Issue: 2-3,
Pages: 155-158
Publisher
Elsevier
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Virology (VIRO)