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• W2037367036 startingPage "1459" @default.
• W2037367036 abstract "The accessory HIV-1 Nef protein is a crucial determinant for viral replication and pathogenesis. During HIV infection, loss of immune control in the setting of a strong and broad HIV-specific T-lymphocyte response, leads to a lethal outcome through AIDS. Moreover, dysfunction of dendritic cells (DCs) may contribute to the immune suppression associated with AIDS progression. We recently demonstrated that exogenous Nef selectively activates immature DCs manipulating their phenotypical, morphological, and functional developmental program. Here, we tracked whether Nef, targeting DCs, could be involved in the dysregulation of CD8+ T cell responses. We found that Nef inhibits the capacity of DCs to prime alloreactive CD8+ T cell responses down-regulating their proliferation and functional competence. This coincides with the induction of CD8+ T cell apoptosis. Nef oversees apoptotic killing of CD8+ T cells up-regulating TNF-alpha and FasL production by DCs and interfering with the death receptor pathway in CD8+ T cells and thus activating caspase 8. Our findings suggest that Nef may contribute to the immune evasion associated with HIV-1 infection, subverting DC biology. This may help explain the pleiotropic function that Nef plays during infection and makes this protein an attractive target for preventive and therapeutic intervention." @default.
• W2037367036 created "2016-06-24" @default.
• W2037367036 creator A5000928404 @default.
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• W2037367036 creator A5031963462 @default.
• W2037367036 creator A5061497677 @default.
• W2037367036 date "2004-07-01" @default.
• W2037367036 modified "2023-09-23" @default.
• W2037367036 title "HIV‐1 Nef equips dendritic cells to reduce survival and function of CD8⁺T cells: a mechanism of immune evasion" @default.
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• W2037367036 doi "https://doi.org/10.1096/fj.04-1633fje" @default.
• W2037367036 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15240562" @default.
• W2037367036 hasPublicationYear "2004" @default.
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