由先天性淋巴细胞产生的互白素-10限制了小鼠的肠道炎症
Jing Li1, Justin Jacobse2, Jennifer M Pilat3
1Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA.
Mucosal immunology
|February 23, 2025
概括
生产互白素-10 (IL-10) 的先天性淋巴细胞 (ILC) 对于维持肠道免疫平衡至关重要. 它们的IL-10产生会影响肠道巨细胞,防止结肠炎.
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:
- 介质素-10 (IL-10) 对于肠道免疫恒温至关重要.
- 在CX3CR1+单核细胞中的IL-10受体信号传递可以预防结肠炎.
- 在肠道炎症中IL-10的具体来源之前尚不清楚.
研究的目的:
- 确定在肠道炎症期间负责IL-10产生的特定免疫细胞.
- 在实验性结肠炎中研究来自Rorc表达的先天性淋巴细胞 (ILCs) 的IL-10.
- 阐明IL-10产生ILCs调节肠道免疫力的机制.
主要方法:
- 在小鼠中使用光蛋白记者和细胞特异向.
- 产生并分析了表达Rorc的ILC特异性Il10缺陷小鼠.
- 采用RNA在现场杂交和收养转移实验.
主要成果:
- 在抗CD40介导的肠炎期间,Rorc表达的ILC被确定为IL-10的主要来源.
- 在表达Rorc的ILC中删除IL-10,加剧了实验性结肠炎和改变了肠道巨细胞的表型.
- 类似于ILC2/ILC3的IL-10+ ILCs产生了CCL26,CX3CR1联体,并且在CX3CR1+细胞附近发现.
- 转基因记者小鼠证实了RORγt+ ILC衍生的IL-10的保护作用.
结论:
- 通过Rorc表达ILCs产生IL-10对于预防实验性结肠炎至关重要.
- 来自ILCs的IL-10会影响肠道巨细胞表型和免疫恒常.
- 这项研究突出了涉及ILC衍生的IL-10和肠道巨细胞的新型调节轴.
关键词:
CCL2626 CCL26 CCL26 CCL26 CCL26 CCL26 CCL26在CX (((3) CR1CR1中.IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD在 IL-10 中,IL-10 是 IL-10 的代表.在 ILC3 中.更多相关视频
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