含有miRNA-148a的GMSC衍生的EVs通过IKKB/NF-κB通路调节Treg/Th17平衡,并治疗类风湿性关节炎模型
Jingrong Chen1,2, Xiaoyi Shi2,3, Yanan Deng1
1Department of Immunology, School of Cell and Gene Therapy, Shanghai Songjiang Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
JCI insight
|April 23, 2024
概括
来自牙介质干细胞 (GMSC-EVs) 的细胞外囊泡对类风湿性关节炎 (RA) 治疗有希望. GMSC-EV针对炎症关节,恢复免疫平衡,并减少关节炎的进展,为MSCs提供更安全的替代方案.
科学领域:
- 免疫学 免疫学 免疫学
- 再生医学是一种再生医学.
- 细胞生物学 细胞生物学
背景情况:
- 介质细胞干细胞 (MSC) 具有免疫调节特性,对类风湿性关节炎 (RA) 等自身免疫性疾病有益.
- MSC的异质性带来了挑战,导致治疗结果变化和安全问题,阻碍了临床使用.
- 来自MSCs的细胞外囊泡 (EVs) 提供了一种具有潜在优势的无细胞治疗方法.
研究的目的:
- 评估从人类牙介质干细胞 (GMSC-EVs) 获得的细胞外囊泡的治疗潜力,用于类风湿性关节炎 (RA).
- 在RA模型中研究GMSC-EVs免疫调节效应的机制.
主要方法:
- 在体内实验中,使用已建立的小鼠原诱导关节炎 (CIA) 模型进行实验.
- 对Treg和Th17细胞群体及其在炎症关节中的平衡进行分析.
- 研究miR-148a-3p和IKKβ/NF-κB信号通路的作用.
- 在人类异种移植与宿主疾病 (xGvHD) 模型中的验证.
- 使用患者衍生的突纤维细胞 (RASFs) 开发一个人性化的RA模型.
主要成果:
- 在炎症关节中选择性地积聚GMSC-EVs,并恢复了调节性T (Treg) 和T辅助17 (Th17) 细胞之间的平衡.
- 在GMSC-EV给药后,关节炎的进展显著减少.
- 通过IKKβ/NF-κB通路确定了miR-148a-3p作为GMSC-EV诱导的Treg/Th17平衡调节中的关键调解者.
- 在一个人性化的RA模型中,GMSC-EVs抑制了RASF的侵入性,并将软骨的破坏降到最低.
结论:
- 通过调节免疫反应和保护关节组织,GMSC-EVs对类风湿性关节炎具有显著的治疗潜力.
- 这些发现强调GMSC-EVs作为一种有希望的RA无细胞治疗策略,有可能克服MSC的局限性.
- 降低免疫性,易于施用,有针对性的输送位置GMSC-EVs作为治疗RA和其他自身免疫性疾病的可行替代品.
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