人类ESC衍生角膜内皮细胞用于角膜内皮功能障碍的安全性和有效性
Juan Yu1,2,3,4, Nianye Yu1,2,3,4, Yao Tian5,2,3,4
1Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100049, China.
Cell & bioscience
|November 7, 2023
概括
来自人类胚胎干细胞的诱导角膜内皮细胞 (iCEC) 为角膜内皮功能障碍提供了安全有效的细胞疗法. 这些细胞成功地恢复了角膜清晰度,并在临床前模型中减少了胀.
科学领域:
- 再生医学是一种再生医学.
- 眼科医生 眼科 眼科
- 干细胞生物学 干细胞生物学
背景情况:
- 角膜内皮功能障碍导致视力受损,原因是角膜内皮细胞 (CEC) 损失.
- 使用人类多能干细胞 (hPSCs) 的细胞替代疗法显示出有前途,但需要强大的临床前评估.
- 在对hPSC衍生CEC的综合性临床前评估中存在挑战.
研究的目的:
- 从临床级人类胚胎干细胞 (hESCs) 产生诱导角膜内皮细胞 (iCECs) 的有效方案.
- 在角膜内皮功能障碍的临床前模型中评估这些iCEC的安全性和有效性.
主要方法:
- 从临床级的hESC中生成iCEC的无基因介质的适应差异化协议.
- 在试验室中对ICECs进行CEC标记表达和超内皮性质的表征.
- 在免疫缺陷小鼠和子模型中的体内安全性 (瘤性) 和疗效研究.
主要成果:
- 成功生成了具有高表达CEC标志物和体外功能的临床级iCECs.
- 在体内没有显示过度生长或瘤性.
- 在iCEC移植后在子模型中显示出角膜胀的改善和不透明度的恢复.
结论:
- 开发的协议提供了一种有效的方法来生成临床级的iCEC.
- 在临床前模型中,移植的iCEC在恢复角膜功能方面是安全和有效的.
- 临床级iCECs代表着角膜内皮功能障碍的可行治疗来源.
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