从hiPSCs同时生成可移植的RGC类和角膜前代细胞,使用双系系平台
Guilan Li1, Jinguo Ye2, Qiuling Hu2
1State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China. liglan@mail.sysu.edu.cn.
Stem cell research & therapy
|December 24, 2025
概括
人类诱导的多能干细胞 (hiPSCs) 用于产生视网膜质细胞 (RGCs) 和角膜细胞以恢复视力. 这个平台克服了眼部再生医学中的细胞局限性.
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:
- 视网膜和角膜退化导致的视力丧失是一个重大的临床挑战.
- 目前的细胞疗法受限于供体细胞的可用性.
- 人类诱导的多能干细胞 (hiPSCs) 为产生眼细胞提供了一个潜在的解决方案.
研究的目的:
- 开发一个精简的平台,同时从hiPSCs生成视网膜质细胞 (RGC) 和角膜血统.
- 克服眼部再生医学供应捐助细胞供应的局限性.
- 建立一种具有成本效益的方法来获得可移植的眼细胞.
主要方法:
- 利用一个结合的2D和3D培养系统与hiPSCs用于眼细胞分化.
- 采用10x Genomics单细胞RNA测序来追踪RGC和角膜谱系的发展.
- 通过FACS通过纯化的RGC样 (CD184+CD171+) 和角膜前代细胞 (CD104+) 移植到小鼠模型中.
主要成果:
- 单细胞RNA测序确定了关键的表面标记物 (RGCs的CD184,CD171;角膜祖先的CD104).
- 移植的hiPSC衍生的RGC类细胞在视神经压碎模型中恢复了视觉功能.
- 在角膜损伤模型中,hiPSC衍生的角膜原生细胞加速角膜修复和减少新血管化.
- 实现了视网膜和角膜器官的同步产生,用于再生疗法和疾病建模.
结论:
- 建立了一种基于表面标记的,具有成本效益的方法,用于从hiPSC中获得可移植的RGC和角膜系细胞.
- 通过使用hiPSCs,成功克服了眼部再生医学中的关键障碍.
- 证明了hiPSC衍生细胞在视力恢复和眼组织修复方面的潜力.
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