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能效和可复制的多能干细胞分化协议为功能性内皮细胞:揭示血管再生的途径

Manizheh Azhdari¹, Axel Zur Hausen², Nasser Aghdami³

¹Department of Pathology, School for Cardiovascular Diseases, Faculty of Health, Medicine and Life Sciences, Maastricht University, The Netherlands; Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Tehran, Iran; Department of Developmental Biology, University of Science and Culture, Academic Center for Education, Culture and Research, Tehran, Iran.

Archives of medical research

|January 21, 2025

概括

这项研究开发了一种可靠的协议,用于将人类多能干细胞分化为高度纯净的内皮细胞 (>98%) 用于再生医学应用. 该方法确保了功能性,可移植的细胞用于心血管疾病治疗.

科学领域:

干细胞生物学干细胞生物学
心血管研究研究心血管研究
再生医学是一种再生医学.

背景情况:

内皮细胞 (ECs) 对心血管疾病治疗至关重要,包括血管修复和药物输送.
将人类多能干细胞 (hPSCs) 分化为ECs是实验室产生的ECs的一个有希望的来源.
在实现高纯度和避免在分化过程中避免不必要的细胞类型方面存在挑战.

研究的目的:

提出一种可靠和可重复的协议,用于将hPSC分化为成熟的EC.
从hPSC分化中获得高纯度 (>98%) 的内皮细胞.
建立一种可扩展的方法来生产可移植的EC.

主要方法:

通过光激活细胞分类 (FACS) 从hPSC中分离FLK1+细胞.
使用内皮生长因子 (VEGF,FGF,EGM-2) 将FLK1+细胞分化为EC.
对内皮细胞标记物 (CD31,CD144,vWF) 和功能测定 (管道形成,DiI-ac-LDL吸收) 的差异化EC的表征.
使用第二个FACS步骤与CD31抗体进行EC的进一步净化.

主要成果:

分化hPSC衍生的ECs (hPSC-ECs) 表达了高水平的关键内皮细胞标记物 (PECAM-1/CD31,VE-cadherin/CD144,vWF),超过98%的纯度.
hPSC-ECs表现出功能特征,包括管状结构的形成.
使用DiI-ac-LDL证实了差异化的EC的功能成熟度.

结论:

该研究提供了一个强大的协议,用于从hPSCs生成高纯度内皮细胞.
了解分子机制和信号通路对于确定内皮细胞命运至关重要.
这一进步促进了可移植ECs的可扩展生产,用于再生医学和个性化疗法.

关键词:

CD31 CD31 CD31 CD31 CD31 CD31 CD31 CD31 CD31 CD31 CD31 CD31 CD31 内皮细胞 (ECS) 是一种内皮细胞.FLK1 是一个FLK1 人类多能干细胞 (hPSCs)再生医学是一种再生医学.血管再生血管再生

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