介酶体 stromal 细胞诱导中性粒细胞聚合和细胞外囊泡风暴系统性红斑狼
Qianmin Ou1, Luhan Niu1, Dandan Wang2
1South China Center of Craniofacial Stem Cell Research, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
Signal transduction and targeted therapy
|October 13, 2025
概括
狼 (SLE) 中介细胞 stromal cell (MSC) 疗法通过触发中性粒细胞聚合来起作用,从而产生细胞外囊泡 (EV) 风暴. 这种EV风暴对于免疫耐受性和预测治疗成功至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 再生医学是一种再生医学.
背景情况:
- 介酶体 stromal 细胞 (MSCs) 在诸如系统性红斑狼 (SLE) 等自身免疫性疾病中表现出治疗潜力.
- 在MSC治疗效果的基础上的精确机制,特别是在SLE中,仍然不完全理解.
研究的目的:
- 阐明MSC移植在SLE治疗中的详细治疗机制.
- 调查内源性细胞外囊泡 (EV) 在MSC介导的SLE治疗中的作用.
主要方法:
- 在SLE模型和患者中研究了MSC移植效应.
- 分析了中性粒细胞聚合,EV风暴生成以及相关的分子通路 (TNFα/ICAM-1/Rab11b,DHA/LILRB4/STAT5/STAT3).
- 评估了EV风暴封锁对治疗疗效的影响.
主要成果:
- MSC移植诱导骨髓中性粒细胞聚合,通过TNFα/ICAM-1/Rab11b轴导致内源性EV风暴.
- 阻止EV风暴取消了MSC在SLE的治疗益处;EV风暴水平与治疗疗效有积极的相关性.
- EV风暴使Th17和T调节细胞平衡,通过DHA/LILRB4/STAT5/STAT3通路促进免疫耐受性和缓解.
结论:
- 对于SLE的MSC治疗包括从聚合中性粒细胞诱导内源性EV风暴,这对于免疫耐受性和疾病缓解至关重要.
- 受体EV风暴是MSC疗效的关键调解者,可以作为SLE治疗成功的预测生物标志物.
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