从iPSC衍生的MSC获得的EV产品在调节异构免疫反应的能力方面表现出批量对批量的变化in vitro
Tobias Tertel1, Robin Dittrich1, Pierre Arsène2
1Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
Frontiers in cell and developmental biology
|November 15, 2023
概括
诱导的多能干细胞衍生的介质干细胞 (iMSCs) 提供扩张优势,但它们的细胞外囊泡 (EVs) 仍然显示功能不一致. 严格的批量对批量测试对于可靠的MSC-EV产品选择至关重要.
科学领域:
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
- 再生医学是一种再生医学.
背景情况:
- 介酶体 stromal 细胞 (MSCs) 在治疗上是有前途的,主要是通过细胞外囊泡 (EVs) 调节免疫反应以再生.
- 主要MSCs表现出有限的增殖,需要诸如诱导多能干细胞 (iPSCs) 等替代源.
- 符合GMP的iPSC可以产生具有高扩张潜力的iPSC衍生MSC (iMSC).
研究的目的:
- 评估来自iMSCs的EVs的治疗潜力和功能一致性.
- 将iMSC-EVs的免疫调节特性与初级MSCs的免疫调节特性进行比较.
- 为了应对MSC-EV产品批量变化的挑战.
主要方法:
- 从符合GMP的iPSC生成iMSC.
- 根据MSC标准对iMSC的表征.
- 从iMSC和初级MSC中分离和描述EV.
- 评估EVs的免疫调节功能和蛋白质概况.
主要成果:
- 与初级MSC相比,iMSC满足了MSC标准,并显示出增强的扩张.
- 来自iMSC的EV具有免疫调节潜力,但表现出明显的批量对批量的功能不一致性.
- 在不同的iMSC-EV制剂中观察到EV特异性蛋白质配置的变化.
- iMSC-EVs反映了与初级MSC-EVs看到的功能变异性挑战.
结论:
- 虽然iMSC提供了一个可扩展的源,但它们并不能解决MSC-EV产品固有的功能变化.
- 这些发现强调了确保MSC-EVs持续治疗疗效的持续挑战.
- 强大的批量对批量功能测试对于区分有效的MSC-EV产品和无效的MSC-EV产品在临床应用中至关重要.
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