肥胖会通过抑制mTORC1信号传递来破坏ILC2的代谢和功能稳定
Lin Hu1,2,3, Dongdi Wang1,2,3, Yue Chen4
1Center for Immune-Related Diseases at Shanghai Institute of Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Cellular & molecular immunology
|January 27, 2026
概括
拉巴胺素复合体1 (mTORC1) 的机械标在肥胖中受损,影响脂肪组织的第2组先天性淋巴细胞 (ILC2). 恢复mTORC1功能是肥胖患者代谢和免疫健康的关键.
科学领域:
- 免疫学 免疫学 免疫学
- 代谢过程中的代谢.
- 肥胖问题研究研究
背景情况:
- 第二组先天性淋巴细胞 (ILC2s) 对于脂肪组织的平衡至关重要.
- 肥胖与ILC2失调有关,但潜在的机制尚不清楚.
研究的目的:
- 调查拉巴胺素复合体1 (mTORC1) 的机械标在肥胖期间调节脂肪组织ILC2功能中的作用.
主要方法:
- 从肥胖小鼠和人类的脂肪组织ILC2s中评估mTORC1活性.
- 利用猛龙删除模型来研究mTORC1的功能.
- 分析了ILC2的数量,细胞因子的产生,炎症和胰岛素抵抗.
主要成果:
- 肥胖患者的脂肪组织ILC2s中mTORC1活性受损.
- 猛禽删除减少了ILC2数量和2型细胞因子的产生.
- 通过HIF-1α和PPARγ,mTORC1信号调节ILC2线粒体生物发生和ST2表达,影响代谢适应性.
结论:
- mTORC1是脂肪组织ILC2代谢和免疫恒常的关键调节者.
- 在ILC2s中功能障碍的mTORC1信号传递有助于与肥胖相关的胰岛素抵抗.
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