在急性尾炎的炎症和组织损伤中MAIT细胞激活和招募
Yichao Zheng1,2, Fei Han1, Zhengyu Wu1
1Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
Science advances
|June 12, 2024
概括
在尾炎期间,粘膜相关的不变T细胞 (MAIT) 迁移到炎症的尾组织. 这些免疫细胞有助于组织损伤,揭示了对肠道炎症机制的新见解.
科学领域:
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
- 微生物学 微生物学
背景情况:
- 粘膜相关不变T细胞 (MAIT) 对肠道免疫至关重要,但它们在炎症期间的迁移尚不清楚.
- 急性儿科尾炎 (APA) 为研究免疫细胞在肠道炎症中的行为提供了一个模型.
研究的目的:
- 研究MAIT细胞迁移机制进入炎症尾组织.
- 了解急性炎症期间MAIT细胞与肠道粘膜的相互作用.
主要方法:
- 在APA患者中分析MAIT细胞数量和细胞因子生产.
- 使用患者衍生的尾器官 (PDAO) 来建模炎症.
- 在PDAO中调查MAIT细胞透以应对大肠杆菌.
主要成果:
- 在APA患者中,MAIT细胞在循环中减少,但在炎症的尾组织中丰富.
- 炎症性细胞因子诱导MAIT细胞化学因子受体表达 (CCR1,CCR3,CCR4).
- MAIT细胞透了依赖CCR1,CCR2和CCR4的*大肠杆菌*脉冲PDAO,导致组织破坏.
结论:
- 在肠道炎症期间确定了MAIT细胞组织定位的新机制.
- MAIT细胞积极参与急性儿科尾炎的组织损伤.
- MAIT细胞在粘膜组织内的宿主-病原体相互作用中起着复杂的作用.
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