在患有牛皮的患者中,HMGB1调节了Th17细胞的分化和功能
Xiaofeng Zhu1, Yue Dou1, Yawen Lin1
1Department of Dermatology, Binzhou Medical University Hospital, Binzhou, China.
Immunity, inflammation and disease
|February 28, 2024
概括
高流动性组盒1 (HMGB1) 通过HMGB1-Toll-like受体4 (TLR4) -IL-23-RORγt通路调节T助手17 (Th17) 细胞分化,促进牛皮,增加IL-17A的产生. 准HMGB1为牛皮免疫治疗提供了潜在的潜力.
科学领域:
- 免疫皮肤学 免疫皮肤学
- 炎症性疾病的分子机制
- 自免疫性疾病 自免疫性疾病
背景情况:
- 牛皮是一种慢性炎症性皮肤疾病,由T助手17 (Th17) 细胞和中白素-17A (IL-17A) 驱动.
- 高流动性组盒1 (HMGB1) 在牛皮上升调节,并与炎症有关.
- HMGB1-TLR4-IL-23-IL-17A通路在牛皮病原发生过程中的作用尚未完全理解.
研究的目的:
- 研究HMGB1-TLR4-IL-23-IL-17A通路在牛皮中的作用.
- 阐明HMGB1在Th17细胞分化中的调控机制.
主要方法:
- 在50名牛皮患者和30名对照人群中,HMGB1,TLR4,IL-23和IL-17A的量化血清水平.
- 在体外,刺激了来自10名重症牛皮患者的外周血液单核细胞,这些患者患有复合HMGB1 (rHMGB1).
- 评估了Th17细胞百分比,mRNA和TLR4,IL-23,IL-17A和RORγt的蛋白质水平.
主要成果:
- 牛皮患者的血清HMGB1,TLR4,IL-23和IL-17A水平明显高于对照组,与疾病严重程度相关.
- 在体外,rHMGB1剂量依赖地增加了Th17细胞的百分比和TLR4,IL-23,IL-17A和RORγt的表达.
- 在HMGB1,TLR4,IL-23和IL-17A水平之间观察到正相关性.
结论:
- HMGB1通过HMGB1-TLR4-IL-23-RORγt通路促进Th17细胞分化来驱动牛皮病原体.
- 这一途径导致IL-17A的产生和炎症增加.
- 向HMGB1为牛皮免疫疗法提供了一个潜在的治疗策略.
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