晨间信号Morning Signal
《科学》 第393卷 第6808期 · 2026年7月16日 · 中文解读

恢复组织驻留巨噬细胞对衰老中性粒细胞的清除可限制器官衰老

Restored clearance of senescent neutrophils by tissue-resident macrophages limits organ aging · M. T. et al.
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本文研究了组织驻留巨噬细胞通过EP2信号调控衰老中性粒细胞清除,从而影响器官衰老的机制。
原文开头
RATIONALE: We studied aged mice in which EP2 signaling on TRMs was selectively reduced, either genetically (TRM- specific EP2 deletion) or pharmacologically, to define how TRM dysfunction shapes organ- wide aging. TRMs are long- lived gatekeepers of tissue homeo- stasis, and EP2 offers a tractable target because its activity increases in aged macrophages and suppresses their metabolic and phagocytic function. Using complementary genetic and pharmacological approaches, we tested whether restoring TRM function reverses organ aging and identified which efferocytic substrate is most affected. The same design also defined the molecular step at which EP2 acts within TRMs and extended our findings to aged human tissues. …
摘自《科学》(Science)第393卷 第6808期 · 2026年7月16日,M. T. et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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