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- W2012096578 abstract "NK cells mediate the innate immune response, and HIV-infected individuals demonstrate altered NK cell phenotype and function. We find that CD4+ NK cells are susceptible to HIV infection; this could account for the NK cell dysfunction seen in HIV-infected individuals. CD4+ NK cells express CXCR4 and can be infected with X4-tropic viruses and some primary R5-utilizing viral isolates. Treatment with the CXCR4 ligands AMD3100 and SDF-1α partially blocks infection with X4-tropic virus, treatment with anti-CCL Igs upregulates CCR5 surface expression and enables infection with HIV-Bal. HIV infection of NK cells results in CD4 downregulation and the production of infectious virus. HIV-infected CD4+ NK cells mediate NK cell cytotoxicity, however, HIV infection is associated with decreased chemotaxis towards IL-16. Thus, HIV infection of CD4+ NK cells could account for the NK cell dysfunction observed in HIV-infected individuals. Furthermore infected NK cells could serve as a viral reservoir of HIV in vivo." @default.
- W2012096578 created "2016-06-24" @default.
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- W2012096578 date "2009-04-01" @default.
- W2012096578 modified "2023-10-18" @default.
- W2012096578 title "CD4+ NK cells can be productively infected with HIV, leading to downregulation of CD4 expression and changes in function" @default.
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- W2012096578 doi "https://doi.org/10.1016/j.virol.2009.01.044" @default.
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