人类中性粒细胞通过释放互白素 (IL-26) 来驱动皮肤自身炎症
Alessia Baldo1, Jeremy Di Domizio1, Ahmad Yatim1
1Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland.
The Journal of experimental medicine
|March 6, 2024
概括
中性粒细胞释放介质素-26 (IL-26),在性牛皮中引起自身炎症. 这种IL-26通过质细胞和TLR9激活将中性粒细胞与自我维持的炎症循环联系起来.
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:
- 自燃性炎症涉及无菌炎症与中性粒细胞透和INTERLEUKIN-1 (IL-1) 细胞因子过度表达.
- 这些自身炎症事件的触发因素在很大程度上仍然未知.
- 状牛皮是一种研究无菌自发炎症的模型.
研究的目的:
- 为了研究中性粒细胞和INTERLEUKIN-26 (IL-26) 在性牛皮病的发病过程中的作用.
- 确定中性粒细胞对自身炎症有所贡献的机制.
- 阐明涉及IL-26介导炎症的信号通路.
主要方法:
- 来自性牛皮患者中性粒细胞的分析.
- 评估IL-26表达和在激活时从中性粒细胞释放.
- 研究IL-26与角质细胞和微生物群DNA的相互作用.
- 在中性粒细胞中对托尔类受体9 (TLR9) 激活的评估.
主要成果:
- 人类中性粒细胞构成性地表达IL-26,并在激活时从颗粒状储存中释放它.
- 中性粒细胞衍生的IL-26通过诱导IL-1细胞因子和化学因子,促进性牛皮的自身炎症.
- IL-26激活了角质细胞中的IL-26受体 (IL-26R),导致炎症.
- IL-26与微生物群DNA的复合体激活中性粒细胞中的TLR9,延续炎症循环.
结论:
- 中性粒细胞是IL-26的重要来源.
- IL-26 作为关键的调解者,将中性粒细胞与性牛皮的自维持性自身炎症循环联系起来.
- 向IL-26可能为性牛皮和相关的自身炎症状况提供治疗策略.
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