脂肪酸衍生干细胞通过恢复CX3CR1+突内膜巨细胞屏障来减轻类风湿性关节炎
Lei Wang1,2, Ming Hao2, Yongyue Xu1,2
1MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Tsinghua University, Beijing, 100084, China.
Stem cell research & therapy
|March 5, 2025
概括
脂肪酸衍生干细胞 (ADSCs) 通过转移线粒体,改善能量代谢和疾病进展来恢复类风湿性关节炎 (RA) 中的巨细胞屏障. 这突出了ADSC和线粒体作为潜在的RA疗法.
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:
- 类风湿性关节炎 (RA) 是一种慢性自身免疫性疾病,会影响突巨细胞屏障的完整性.
- 目前的RA疗法存在局限性;介酶干细胞 (MSCs),特别是脂肪衍生干细胞 (ADSCs),显示出治疗前景.
- 治疗ADSC的机制及其与RA中CX3CR1+巨细胞的相互作用需要进一步研究.
研究的目的:
- 在RA的屏障重建过程中调查ADSC-巨细胞相互作用.
- 阐明ADSCs的治疗机制和巨细胞屏障中的动态变化.
- 探索线粒体转移在RAADSC治疗中的作用.
主要方法:
- 在ADSC注射的小鼠中,血清转移诱导的关节炎模型.
- 单细胞RNA测序 (scRNA-seq) 用于分析巨细胞群和ADSC-巨细胞相互作用.
- 大量RNA测序用于共同培养和体内ADSC命运分析.
- 线粒体转移实验和分离的ADSC衍生线粒体的移植.
主要成果:
- 通过恢复CX3CR1+巨细胞屏障,ADSC注射减轻了RA的进展.
- 在RA中,scRNA-seq确定了Atf3高Ccl3高的巨细胞子集,其代谢受损.
- ADSCs通过线粒体转移减少了这一子集;ADSC衍生的线粒体单独治疗RA.
- 确定了Cd74/Mif和GAS6/Mertk轴,调解ADSC-巨相互作用和屏障恢复.
结论:
- ADSCs改善CX3CR1+内巨细胞的能量代谢,并通过线粒体转移促进屏障恢复.
- 阐明了ADSC命运,并证明了线粒体在RA治疗中的治疗潜力.
- 在RA中,ADSCs有助于组织修复和免疫调节.
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