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Olivier, Abraham J.; Masson, Lindi; Ronacher, Katharina; Walzl, Gerhard; Coetzee, David; Lewis, David A.; Williamson, Anna-Lise; Passmore, Jo-Ann S.; Burgers, Wendy A.
The Journal of infectious diseases, 04/2014, Letnik: 209, Številka: 8Journal Article
Background. Semen is the main vector for human immunodeficiency virus (HIV) transmission from men to women. We investigated the influence of cytokines in semen on local HIV burden and activated T cells. Methods. Blood and semen were collected from 42 HIV-negative and 38 HIV-positive men. Concentrations of 20 cytokines were measured by Luminex, and frequencies of activated T cells were measured by flow cytometry. Results. Semen contained higher concentrations of proinflammatory (monocyte chemotactic protein-1, interleukin IL-8, IL-6, Fractalkine, macrophage inflammatory protein (MIP)-1β, granulocyte macrophage colonystimulating factor) and adaptive cytokines (IL-7 and IL-15) and higher frequencies of activated T cells compared to blood. Plasma IL-2, eotaxin, MIP-1β, and IL-15 and semen eotaxin and granulocyte colony-stimulating factor (GCSF) concentrations were associated with T-cell activation. Cytokines in semen were highly coregulated in HIVnegative men; however, this network was disrupted during HIV infection. Several cytokines in semen correlated with HIV shedding (G-CSF, tumor necrosis factor-alpha TNF-α, interferon-gamma IFN-γ, IL-10). Conclusion. Higher levels of inflammation and T-cell activation were observed in semen compared with blood. Seminal G-CSF, which influences neutrophil survival, T-cell function, and dendritic cell activation, was associated with T-cell activation and HIV shedding and may be an important target for reducing HIV shedding or risk.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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