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High IL-10 production by aged AIDS patients is related to high frequency of Tr-1 phenotype and low in vitro viral replication

机译:老年艾滋病患者高IL-10产生与Tr-1表型频率高和体外病毒复制低有关。

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This work aims to elucidate the effects of age and HIV-1 infection on the frequency and function of T cell subsets in response to HIV-specific and non-specific stimuli. As compared with the younger AIDS group, the frequencies of naive and central memory T cells were significantly lower in aged AIDS patients. Although there was also a dramatic loss of classical CD4 +FoxP3 +CD25 +Treg cells in this patient group, high frequencies of IL-10-producing CD4 +FoxP3 - T cells were observed. In our system, the increased production of IL-10 in aged AIDS patients was mainly derived from Env-specific CD4 +FoxP3 -CD152 + T cells. Interestingly, while the blockade of IL-10 activity by monoclonal antibody clearly enhanced the release of IL-6 and IL-1β by Env-stimulated PBMC cultures from aged AIDS patients, this monoclonal antibody enhanced in vitro HIV-1-replication. In conclusion, HIV infection and aging undoubtedly contribute synergistically to a complex immune dysfunction in T cell compartment of HAART-treated older HIV-infected individuals.
机译:这项工作旨在阐明年龄和HIV-1感染对T细胞亚群的频率和功能的响应,这些反应是针对HIV特异性和非特异性刺激的。与年轻的AIDS组相比,老年AIDS患者的幼稚和中枢记忆T细胞的频率显着降低。尽管在该患者组中经典CD4 + FoxP3 + CD25 + Treg细胞也大量丢失,但观察到产生IL-10的CD4 + FoxP3-T细胞频率很高。在我们的系统中,老年艾滋病患者中IL-10的产生增加主要来自Env特异性CD4 + FoxP3-CD152 + T细胞。有趣的是,尽管单克隆抗体阻断IL-10活性明显增强了Env刺激的PBMC培养物从老年AIDS患者中释放IL-6和IL-1β,但这种单克隆抗体却增强了体外HIV-1复制。总之,毫无疑问,HIV感染和衰老是由HAART治疗的较早感染HIV的个体的T细胞区室中复杂的免疫功能障碍的协同作用。

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