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首页> 外文期刊>Nature immunology >Up on the tightrope: natural killer cell activation and inhibition
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Up on the tightrope: natural killer cell activation and inhibition

机译:走钢丝:自然杀伤细胞的激活和抑制

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Natural killer (NK) cells circulate through the blood, lymphatics and tissues, on patrol for the presence of transformed or pathogen-infected cells. As almost all NK cell receptors bind to host-encoded ligands, signals are constantly being transmitted into NK cells, whether they interact with normal or abnormal cells. The sophisticated repertoire of activating and inhibitory receptors that has evolved to regulate NK cell activity ensures that NK cells protect hosts against pathogens, yet prevents deleterious NK cell-driven autoimmune responses. Here I highlight recent advances in our understanding of the structural properties and signaling pathways of the inhibitory and activating NK cell receptors, with a particular focus on the ITAM-dependent activating receptors, the NKG2D-DAP10 receptor complexes and the CD244 receptor system.
机译:自然杀手(NK)细胞在巡逻时通过血液,淋巴管和组织循环,其中存在转化的或病原体感染的细胞。由于几乎所有的NK细胞受体都与宿主编码的配体结合,因此无论它们与正常细胞还是异常细胞相互作用,信号都会不断地传递到NK细胞中。进化成熟的激活和抑制受体库已经发展为调节NK细胞活性,可确保NK细胞保护宿主免受病原体侵害,并防止有害的NK细胞驱动的自身免疫反应。在这里,我重点介绍了我们对抑制性和活化性NK细胞受体的结构特性和信号传导途径的理解方面的最新进展,特别关注了依赖于ITAM的活化性受体,NKG2D-DAP10受体复合物和CD244受体系统。

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