HucMSCs可以通过MAPK信号通路缓解高葡萄糖诱导的异常血管生成
Yang Yao1,2, Tiantian Shan2,3, Xiaoying Li2,4,5
1Department of Anesthesiology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao 266011, China.
iScience
|December 6, 2024
概括
高血糖会损害糖尿病患者的血管形成 (血管生成) 和功能. 人类带衍生中介质干细胞 (hucMSCs) 显示出保护这些糖尿病血管并发症的潜力.
科学领域:
- 生物医学工程 生物医学工程
- 干细胞生物学 干细胞生物学
- 糖尿病并发症 研究 研究 糖尿病并发症
背景情况:
- 糖尿病导致血管并发症,通过内皮细胞损伤和血管生成受损增加死亡率.
- 以前对糖尿病血管问题的介质干细胞的研究忽视了血管生成.
- 血管有机体 (BVO) 提供了一个新的模型来研究高葡萄糖对早期血管发育的影响.
研究的目的:
- 用BVO研究高葡萄糖对血管生成和随后血管生成的影响.
- 探索人类带衍生中介质干细胞 (hucMSCs) 在缓解高葡萄糖诱导的血管功能障碍方面的治疗潜力.
- 阐明基于hucMSC介导的保护的分子机制.
主要方法:
- 血管有机体 (BVO) 的生成和培养.
- 在血管系诱导过程中,BVO暴露在高葡萄糖条件下.
- 评估内皮细胞分化和功能.
- 用hucMSCs治疗高葡萄糖暴露的BVO.
- 对MAPK信号通路参与的分析.
主要成果:
- 血管系诱导阶段的BVO对高葡萄糖高度敏感,损害了内皮细胞的分化和功能.
- hucMSCs有效地缓解高葡萄糖诱导的内皮细胞功能障碍.
- hucMSCs的保护作用包括对MAPK信号通路的下调.
结论:
- 高葡萄糖会破坏正常的血管生成,在糖尿病情况下对随后的血管生成产生负面影响.
- hucMSCs表现出一种治疗能力,可以抵消高葡萄糖引起的血管异常.
- 准MAPK通路可能是治疗糖尿病血管并发症的可行策略.
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