ILC3s通过TGF-β1激活来调解肠道免疫-上皮相互作用
Diana Coman1, John W Bassett2, Isabelle Coales1
1Centre for Host-Microbiome Interactions, King's College London, London, United Kingdom.
Mucosal immunology
|November 29, 2025
概括
天生的淋巴细胞 (ILCs) 通过产生转化生长因子-β1 (TGF-β1) 来调节肠道健康. 这项研究表明,ILC3s使用TGF-β1促进肠道愈合和免疫平衡,提供潜在的IBD治疗方法.
科学领域:
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
- 细胞生物学 细胞生物学
背景情况:
- 炎症性肠病 (IBD) 涉及肠道炎症和免疫细胞功能障碍.
- 天生的淋巴细胞 (ILCs),特别是ILC3s,对于维持肠道平衡至关重要.
- ILC3与上皮和适应性免疫细胞相互作用,调节肠道健康.
研究的目的:
- 研究ILC3s在调节胃肠道免疫反应中的作用.
- 阐明ILC3s影响肠上皮细胞和T细胞的机制.
- 探索ILC3衍生TGF-β1作为IBD治疗点的潜力.
主要方法:
- 对小鼠和人类ILC3种群及其细胞因子生产的分析.
- 研究ILC3s中的TGF-β1合成和激活途径.
- 评估ILC3介导对调节性T细胞和肠上皮细胞的影响.
主要成果:
- 鼠和人类的ILC3s通过机械和蛋白质溶解手段合成和激活潜伏的TGF-β1.
- 来自ILC3的TGF-β1诱导FoxP3+调节性T细胞,并促进上皮再生.
- 虽然下游效应保持不变,但TGF-β1激活剂在人类和小鼠ILC3s之间有所不同.
- 在炎症性IBD组织中,ILC3s降低,但它们的TGF-β1机制仍然具有功能.
结论:
- 通过TGF-β1的分泌和激活,ILC3s在肠道平衡中发挥着重要作用.
- 向ILC3衍生TGF-β1可能为IBD提供一种新的治疗策略.
- 维护TGF-β1的功能凸显了它在不同物种的肠道健康中的重要性.
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