CD103 调节皮肤调节T细胞运动和与CD11c表达白细胞的相互作用,以控制皮肤炎症
M Ursula Norman1, Zachary Chow1, Pam Hall1
1Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Clayton, Victoria, Australia.
Journal of immunology (Baltimore, Md. : 1950)
|June 21, 2023
概括
CD103 (一种整蛋白) 通过与E-cadherin相互作用来调节皮肤调节性T细胞 (Treg) 在皮肤炎症期间的迁移. 这种相互作用对于控制皮肤中的炎症反应和Treg行为至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
- 细胞生物学 细胞生物学
背景情况:
- 皮肤调节性T细胞 (Tregs) 对皮肤平衡和免疫反应至关重要.
- 据认为,CD103,一种由皮肤Tregs高度表达的整体蛋白,可以促进它们在皮肤中的保留.
- 在Tregs上的CD103及其在皮肤中的配体E-cadherin之间的相互作用机制尚不清楚.
研究的目的:
- 研究CD103在调节皮肤Treg在皮肤炎症期间的行为中的作用.
- 阐明CD103影响Treg迁移和与皮肤中的其他免疫细胞相互作用的机制.
主要方法:
- 多光子内显微镜被用来观察小鼠皮肤中的Treg行为.
- 使用oxazolone诱导接触过敏.
- 抑制了CD103功能,以评估其对Treg迁移和相互作用的影响.
主要成果:
- CD103抑制增加了Treg在炎症皮肤中的迁移,特别是在炎症晚期的阶段.
- 这与皮肤骨髓白细胞E-cadherin表达增加相关.
- 抑制CD103降低了与皮肤树突细胞的Treg相互作用,并增加了CD4+ T细胞的效应者招募.
结论:
- CD103控制皮肤内Treg迁移,特别是在晚期炎症阶段,当E-cadherin在皮肤上升调节时.
- Tregs和皮肤树突细胞之间的CD103介导相互作用对于调节皮肤炎症很重要.
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