尖端:CCR8信号调节IL-25-和IL-33-敏感皮肤组2原生淋巴细胞迁移和功能
Zhengwang Sun1, Han Sen2, Xueping Zhu1
1Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
Journal of immunology (Baltimore, Md. : 1950)
|November 3, 2023
概括
化基因受体CCR8通过控制2组先天性淋巴细胞 (ILC2) 来调节皮肤免疫力. CCR8信号影响ILC2的丰度,激活和组织进入,以应对IL-25和IL-33警示蛋白.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 第二组先天性淋巴细胞 (ILC2s) 是阻碍性免疫的关键哨兵.
- 皮质警示蛋白IL-25和IL-33激活ILC2s是免疫反应的一个关键特征.
研究的目的:
- 为了研究化学因子受体CCR8在调节皮肤ILC2丰富性和激活中的作用.
- 阐明CCR8信号影响ILC2功能响应IL-25和IL-33的特定机制.
主要方法:
- 使用小鼠模型研究了CCR8在ILC2调制中的作用.
- 在对IL-25和IL-33刺激的反应中分析了ILC2的丰度,激活,增殖和组织贩运.
- 利用骨髓模拟器来区分原生和成熟的ILC2贩运.
主要成果:
- CCR8信号传递促进IL-25诱导的皮肤和肺ILC2s的增加,全身IL-13的产生,以及ILC2进入组织.
- CCR8调节IL-33诱导的皮肤ILC2s的增加,它们的增殖和细胞因子 (IL-13/IL-5) 的产生.
- 观察到明显的ILC2祖先和成熟细胞贩运模式,其中CCR8影响IL-33-响应ILC2s的皮肤定位.
结论:
- CCR8信号传递是ILC2运动和功能的新型调节者,特别是在皮肤中.
- CCR8在调解ILC2对警示蛋白IL-25和IL-33的反应方面发挥着独特的作用.
- 了解CCR8的功能,可以了解障碍免疫和过敏性炎症.
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