中介细胞干细胞的抗炎作用减轻了扩散性肺出血
Yajin Guan1,2, Qianqing Chen3,4, Jiahuan Xu3,4
1School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China.
Biotechnology journal
|September 22, 2023
概括
中细胞干细胞 (MSC) 和它们的细胞外囊泡 (MSC-EV) 显示出治疗扩散性肺出血 (DPH) 的前景. 在DPH模型中,MSCs减少炎症和损伤,提供潜在的无细胞疗法.
科学领域:
- 再生医学是一种再生医学.
- 肺免疫学 肺免疫学
- 细胞疗法细胞疗法
背景情况:
- 扩散性肺出血 (DPH) 具有有限的有效治疗选择.
- 了解介质干细胞 (MSC) 和MSC衍生的细胞外囊泡 (MSC-EV) 的治疗机制对于DPH管理至关重要.
研究的目的:
- 在DPH小鼠模型中研究MSC和MSC-EV的治疗潜力和潜在机制.
- 评估MSCs和MSC-EVs对DPH肺功能,炎症和巨细胞极化的影响.
主要方法:
- 在C57BL/6小鼠中的普里斯坦诱导DPH模型.
- 评估肺功能,组织病理学和基因表达.
- 在体内和体外使用光激活细胞分类 (FACS) 评估巨细胞极化.
- 通过不同的途径 (腹腔内,吸入,静脉注射) 给药MSC和MSC-EV.
主要成果:
- 在DPH小鼠中,MSCs减轻了扩散性膜出血,纤维化和炎症.
- 治疗MSC抑制了M1巨细胞的两极分化,这表明它具有抗炎作用.
- 通过吸入或静脉注射的MSC衍生的细胞外囊泡 (MSC-EVs) 也可以减少DPH损伤.
- 与早期炎症阶段相比,在超急性出血阶段治疗效果更为明显.
结论:
- 在原始诱导的DPH模型中,MSC显示出显著的治疗效果.
- MSC-EVs代表了对DPH的有希望的无细胞治疗策略.
- 向巨细胞两极分化是MSC介导DPH治疗的关键机制.
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