Protective immune responses of major Vγ2Vδ2 T-cell subset in M. tuberculosis infection.

Protective immune responses of major Vγ2Vδ2 T-cell subset in M. tuberculosis infection.
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DOI:
10.1016/j.coi.2016.06.005
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发表时间:
2016-10
影响因子:
7
通讯作者:
Chen ZW
Chen ZW
中科院分区:
医学2区
文献类型:
--
作者:
Chen ZW

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最近的观察发现,聚戊烯基焦磷酸结合Ig超家族蛋白亲丁酸蛋白3A1 (BTN3A1)表明,修饰BTN3A1可以激活主要的γδ T细胞亚群v - γ 2v - δ2 T细胞。研究还表明,在感染过程中,v - γ - 2v - δ2 T细胞的扩张、肺反应、效应功能和记忆极化都需要微生物磷酸抗原HMBPP。广泛的细胞因子库涉及Mtb感染或接种后v - γ - 2v - δ2 T细胞的扩增、回忆样扩增和效应功能。最后,非人灵长类动物结核病模型的机制研究表明,Mtb感染期间Vγ2Vδ2 T细胞的早期扩增和分化可以增加猕猴对结核病的免疫抗性,其潜在机制是早期/持续的IFN-γ产生和CTL杀伤。
Recent observation that prenyl pyrophosphates bind the Ig superfamily protein butyrophilin 3A1 (BTN3A1) suggests that modifying BTN3A1 activates major γδ T-cell subset, Vγ2Vδ2 T cells. Studies also show that microbial phosphoantigen HMBPP is required for expansion, pulmonary response, effector functions and memory polarization of Vγ2Vδ2 T cells during infections. Broad repertoires of cytokines involve expansion, recall-like expansion and effector functions of Vγ2Vδ2 T cells after Mtb infection or vaccination. Finally, mechanistic studies in nonhuman primate TB model demonstrate early expansion and differentiation of Vγ2Vδ2 T cells during Mtb infection can increase immune resistance to TB in macaques, with a potential mechanism of early/sustained IFN-γ production and CTL killing.
非人类灵长类动物中HMBPP特异性Vγ2Vδ2T细胞的多功能功能免疫反应接种了单核细胞增生李斯特菌ΔActaprfa*。
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