NK cell development, homeostasis and function: parallels with CD8⁺ T cells.

NK cell development, homeostasis and function: parallels with CD8⁺ T cells.
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DOI:
10.1038/nri3044
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发表时间:
2011-08-26
期刊:
Nature reviews. Immunology
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自然杀伤细胞对宿主组织进行调查,寻找感染、转化或应激的迹象,并且正如其名称所示,杀死已经无用或对宿主有害的目标细胞。几十年来,NK细胞一直被归类为先天免疫的一个组成部分。然而,在小鼠和人身上积累的证据表明,NK细胞与适应性免疫的T细胞和B细胞一样,在发育过程中受到教育,具有抗原特异性受体,在感染过程中进行克隆扩增,并产生长寿的记忆细胞。在这篇综述中,我们将重点介绍NK细胞在其显著的生命周期中所经历的许多阶段,并讨论与其近亲细胞毒性CD8+ T细胞的异同。
Natural killer cells survey host tissues for signs of infection, transformation, or stress, and true to their name, kill target cells that have become useless or are detrimental to the host. For decades, NK cells have been classified as a component of innate immunity. However, accumulating evidence in mouse and human suggests that, like T and B cells of adaptive immunity, NK cells are educated during development, possess antigen-specific receptors, undergo clonal expansion during infection, and generate long-lived memory cells. In this review, we will highlight the many stages that an NK cell progresses through during its remarkable lifetime, discussing similarities and differences with its close relative, the cytotoxic CD8+ T cell.
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