ресвератрол通过通过PGC-1α PPARγ通路增强线粒体功能,有效促进了hESCs的肝细胞分化
Yiyu Wang1, Huanhuan Shan1, Haibin Wu1
1Laboratory of Stem Cells and Translational Medicine, Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou, 510006, China; Laboratory of Stem Cells and Translational Medicine, Institute for Clinical Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China.
Biochemical and biophysical research communications
|July 5, 2025
概括
复星 (RES) 增强了人类胚胎干细胞衍生的肝细胞中的线粒体功能和生物发生. 这促进了它们的成熟和两极分化,为研究和治疗提供了产生肝细胞的新方法.
科学领域:
- 干细胞生物学 干细胞生物学
- 细胞代谢的细胞代谢.
- 肝细胞分化 肝细胞分化
背景情况:
- 人类胚胎干细胞衍生的肝细胞经常表现出不成熟的特征.
- 线粒体数量和功能因细胞类型和能量需求而异,但与肝细胞分化之间的联系尚不清楚.
研究的目的:
- 为了研究复星 (RES) 对hESC衍生的肝细胞的成熟和极化的影响.
- 阐明线粒体功能和生物发生在RES介导的肝细胞分化中的作用.
主要方法:
- 开发了一种3D悬浮分化方法,将hESCs分成肝细胞球体.
- 用白醇 (RES) 处理分化hESCs.
- 评估细胞内ATP含量,线粒体DNA拷贝数,PGC-1α表达和PPARγ通路激活.
主要成果:
- RES治疗促进了肝细胞的成熟和两极分化.
- RES显著增加了细胞内ATP,线粒体DNA拷贝数和线粒体生物发生的标志物.
- RES上调调节了PGC-1α,并激活了PPARγ通路,增强了线粒体功能.
结论:
- ресвератрол通过PGC-1α和PPARγ通路激活来增强线粒体生物发生和功能.
- 这一过程有效地促进了hESC衍生的肝细胞向成熟的表型的分化.
- 这些发现为产生各种应用的成熟肝细胞提供了一个新的策略.
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