How cytotoxic lymphocytes are protected against their own weapons during close combat with diseased target cells is an important and long-standing question in immunology. A study in this issue provides new insights into the mechanisms by which natural killer (NK) cells avoid self-destruction.

中文翻译：

---

自然杀伤细胞在杀死目标时如何避免自我毁灭。

在与患病靶细胞的近距离战斗中，如何保护细胞毒性淋巴细胞免受自身武器的侵害是免疫学中一个重要且长期存在的问题。本期的一项研究为自然杀伤 (NK) 细胞避免自我毁灭的机制提供了新的见解。