Early elevated IFNα is a key mediator of HIV pathogenesis.
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ABSTRACT: Background
A complete understanding of the different steps of HIV replication and an effective drug combination have led to modern antiretroviral regimens that block HIV replication for decades, but these therapies are not curative and must be taken for life. "Elite controllers" (ECs) is a term for the 0.5% of HIV-infected persons requiring no antiretroviral therapy, whose status may point the way toward a functional HIV cure. Defining the mechanisms of this control may be key to understanding how to replicate this functional cure in others.Methods
In ECs and untreated non-EC patients, we compared IFNα serum concentration, distribution of immune cell subsets, and frequency of cell markers associated with immune dysfunction. We also investigated the effect of an elevated dose of IFNα on distinct subsets within dendritic cells, natural killer cells, and CD4+ and CD8 + T cells.Results
Serum IFNα was undetectable in ECs, but all immune cell subsets from untreated non-EC patients were structurally and functionally impaired. We also show that the altered phenotype and function of these cell subsets in non-EC patients can be recapitulated when cells are stimulated in vitro with high-dose IFNα.Conclusions
Elevated IFNα is a key mediator of HIV pathogenesis.
SUBMITTER: Buanec HL
PROVIDER: S-EPMC10951235 | biostudies-literature | 2024 Mar
REPOSITORIES: biostudies-literature
Publications
Early elevated IFNα is a key mediator of HIV pathogenesis.
Buanec Hélène Le HL Schiavon Valérie V Merandet Marine M How-Kit Alexandre A Bergerat David D Fombellida-Lopez Céline C Bensussan Armand A Bouaziz Jean-David JD Burny Arsène A Darcis Gilles G Song Hongshuo H Sajadi Mohammad M MM Kottilil Shyamasundaran S Gallo Robert C RC Zagury Daniel D
Communications medicine 20240319 1
<h4>Background</h4>A complete understanding of the different steps of HIV replication and an effective drug combination have led to modern antiretroviral regimens that block HIV replication for decades, but these therapies are not curative and must be taken for life. "Elite controllers" (ECs) is a term for the 0.5% of HIV-infected persons requiring no antiretroviral therapy, whose status may point the way toward a functional HIV cure. Defining the mechanisms of this control may be key to underst ...[more]
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