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在肝脏重建过程中,CCL2-诱导的调节性T细胞通过巨细胞极化平衡炎症

Rui Wang¹, Qing Liang¹, Qian Zhang¹

¹Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Xiamen University, State Key Laboratory of Cellular Stress Biology, Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|October 1, 2024

概括

调节性T细胞 (Tregs) 通过IL-10调节肝脏炎症和再生. 这一途径影响巨细胞的两极分化,促进肝脏的愈合和肝脏复合期间的恒温.

科学领域:

免疫学免疫学免疫学
肝病学肝病学是一种肝病学.
细胞生物学细胞生物学

背景情况:

炎症对于肝脏的复制至关重要,但其调节机制仍然不清楚.
肝炎炎症反应对于肝脏再生至关重要,它们的抑制会减缓这一过程.

研究的目的:

阐明肝脏复制过程中控制炎症的机制.
研究调节性T细胞 (Tregs) 和Ccl2在肝炎和再生中的作用.

主要方法:

在小鼠模型中,研究了肝脏复制过程中的免疫反应.
利用Ccl2和Tregs的遗传删除来评估它们对肝损伤和再生的影响.
服用IL-10以评估其对肝细胞增殖和巨细胞两极分化的影响.

主要成果:

由1型先天性淋巴细胞 (ILC1s) 产生的CCl2,在再生过程中向肝脏招募ILC1s和Tregs.
删除Ccl2或Tregs恶化了肝损伤,但加速了肝脏再生.
摄入Tregs和IL-10逆转了加速的再生,促进了肝细胞的增殖.
来自Treg的IL-10诱导了M2巨细胞的两极分化,减少了促炎性细胞因子 (IL-6,TNF-α) 并平衡了肝脏的炎症环境.

结论:

在肝脏复制过程中,Tregs在调节肝脏内炎症环境方面发挥着至关重要的作用.
由Tregs介导的IL-10介导的巨细胞极化是维持肝脏平衡的关键机制.
这项研究提供了改善肝炎和促进肝脏再生的潜在治疗策略.

关键词:

炎症性环境中的炎症.肝脏复制剂肝脏复制剂巨细胞的两极分化监管性T细胞监管性T细胞 1型先天性淋巴细胞.

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