在新生儿皮肤中的commensal myeloid crosstalk调节了长期的17型皮肤炎症
Miqdad O Dhariwala1, Andrea M DeRogatis1, Joy N Okoro1,2
1Department of Dermatology, University of California San Francisco; San Francisco, CA USA.
bioRxiv : the preprint server for biology
|October 24, 2023
概括
交叉体微生物指导新生儿皮肤单细胞,对免疫平衡至关重要. 耗尽这些单细胞导致T细胞炎症并加剧皮肤疾病,突显了它们的长期重要性.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 皮肤病学 皮肤病学
背景情况:
- 生命早期的微生物-免疫相互作用塑造了终身健康和疾病.
- 在障碍组织发育中,开始性-骨髓细胞相互作用的作用尚不清楚.
研究的目的:
- 研究共生微生物在新生儿皮肤免疫细胞发育中的作用.
- 确定新生儿皮肤单细胞对免疫平衡和炎症反应的影响.
主要方法:
- 利用小鼠模型研究新生儿皮肤单细胞种群.
- 产后贫乏单细胞和评估T细胞反应和炎症性皮肤病理.
- 分析了新生儿皮肤单细胞中的基因表达,重点关注IL-1通路调节者.
- 进行了体内实验,以评估T细胞中的IL-1受体信号传递.
主要成果:
- 共生微生物促进新生儿皮肤中单细胞的积累.
- 新生儿单细胞枯竭导致T细胞持续产生IL-17A,加剧皮肤炎症.
- 新生儿皮肤单细胞表达IL-1通路的负调节者.
- 在T细胞中过度的IL-1受体1信号传递导致了单细胞贫乏小鼠的失调的17型反应.
结论:
- 新生儿皮肤中由共生驱动的单细胞的流入对于长期的免疫恒温是必不可少的.
- 新生儿皮肤单细胞在调节T细胞反应和预防炎症性皮肤疾病方面发挥着至关重要的作用.
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