CCL20-CCR6信号改变了代谢重编程,以促进致病的Th17细胞分化
Heikrujam Thoihen Meitei1,2, Neeraja Kulkarni1,2, Amey Shirolkar1
1BRIC-National Centre for Cell Science, Ganeshkhind, SPPU Campus, Pune MH-411007, India.
iScience
|January 14, 2026
概括
化学受体CCR6,当被CCL20激活时,驱动肠道炎症中的炎症性Th17细胞. 这一过程改变了T细胞代谢,增加了糖解和抑制了氧化酸化,提供了治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 代谢研究研究 代谢研究
背景情况:
- 在Th17和调节性T细胞 (Tregs) 上表达CCR6 (C-C化学受体类型6).
- CCR6促进T细胞迁移到炎症组织,但其在代谢适应和功能中的作用尚不清楚.
研究的目的:
- 调查CCL20-CCR6信号在CD4+T细胞分化和大肠炎期间代谢中的作用.
- 确定将CCR6信号与Th17细胞中的代谢变化联系起来的分子机制.
主要方法:
- 对炎症性肠病患者样本和实验性结肠炎小鼠模型的分析.
- RNA测序 (RNA-seq) 和蛋白质组学用于分析代谢途径.
- 研究的信号通路包括PI3K/Akt/mTORC1和STAT3.
主要成果:
- 在结肠炎中,CCL20-CCR6信号促进了炎症性Th1样Th17细胞 (T-bet+RORγt+) 的分化.
- 这种信号激活了PI3K/Akt/mTORC1/STAT3通路,以CCR6依赖的方式.
- 在Th17细胞中,CCL20增加了糖解和减少了氧化酸化,促进了病原体的分化.
结论:
- CCR6-CCL20轴关键调节Th17细胞代谢和肠道炎症的致病性.
- 针对CCR6诱导的Th17细胞的代谢变化,为炎症性肠病和自身免疫症提供了潜在的治疗策略.
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