EPISODE · Apr 15, 2026 · 22 MIN
800-高脂饮食诱导肠道ILC3细胞死亡机制研究
from 聊聊Sci
这项研究揭示了高脂饮食（HFD）导致肠道三型固有淋巴细胞（ILC3）快速死亡的免疫代谢机制。研究发现，肥胖并非细胞损失的直接原因，而是摄入的膳食脂肪与肠道微生物产生的炎症信号共同触发了毒性反应。这些炎症信号通过抑制ILC3中的脂肪酸氧化（FAO）程序，导致细胞内累积的脂质发生线粒体过氧化，进而引发细胞凋亡。这种代谢漏洞在小鼠和人体中均具有保守性，且会显著削弱肠道免疫屏障并增加对致病菌的易感性。值得注意的是，这种损伤在恢复健康饮食后是可逆的，为预防和治疗肥胖相关肠道疾病提供了新视角。References: Torrico E C, Kaptein P, Laalouhmi F, et al. High-fat diet causes rapid loss of intestinal group 3 innate lymphoid cells through microbiota-driven inflammation and mitochondrial stress[J]. Immunity, 2026.前往小宇宙评论区与主播互动
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800-高脂饮食诱导肠道ILC3细胞死亡机制研究
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