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Specific recognition of virus-infected cells by paired NK receptors.

机译:通过配对的NK受体特异性识别病毒感染的细胞。

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NK cells show cytotoxicity and cytokine production upon recognition of virus-infected cells and play an important role in conferring protective immunity against virus infection. Patients who lack functional NK cells are susceptible to severe infectious diseases such as herpesvirus infection. In addition, when NK cells are removed from cytomegalovirus-resistant mice, the virus titre after infection is markedly increased and the mice are likely to die due to infection. However, the exact mechanism of how NK cells recognise virus-infected cells has remained unclear for a long time. Recent findings of the presence of virus-specific NK cell receptors and their ligands on virus-infected cells have provided a new vision of a protective role of NK cells in virus infection. Furthermore, the recognition of virus-infected cells by paired receptors consisting of activating and inhibitory receptors was found to correlate with the degree of host susceptibility to virus infection. Current topics on the role of NK cells in anti-virus immunity are reviewed.
机译:NK细胞在识别出病毒感染的细胞后显示出细胞毒性和细胞因子的产生,并在赋予针对病毒感染的保护性免疫中起重要作用。缺乏功能性NK细胞的患者容易感染严重的传染病,例如疱疹病毒感染。另外,当从抗巨细胞病毒的小鼠中取出NK细胞时,感染后的病毒滴度显着增加,并且小鼠可能由于感染而死亡。但是,NK细胞如何识别被病毒感染的细胞的确切机制长期以来仍不清楚。在病毒感染的细胞上存在病毒特异性NK细胞受体及其配体的最新发现为NK细胞在病毒感染中的保护作用提供了新的视野。此外,发现由活化和抑制受体组成的配对受体对病毒感染细胞的识别与宿主对病毒感染的敏感性程度相关。综述了有关NK细胞在抗病毒免疫中的作用的最新主题。

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