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人类诱导的多能干细胞携带白蛋白-sfGFP记者细胞的生成

Jinling Wang¹, Di Ye¹, Shuangpeng Li¹

¹Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, South China Institute of Large Animal Models for Biomedicine, School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, China.

Stem cell research

|August 29, 2024

概括

研究人员在人类诱导的多能干细胞 (hiPSCs) 中开发了一种新的白蛋白-sfGFP记者系统,以改善功能性肝细胞诱导. 这种进步有助于跟踪和增强从干细胞生成肝细胞.

科学领域:

干细胞生物学干细胞生物学
肝病学肝病学是一种肝病学.
基因工程是一种基因工程.

背景情况:

目前用于从人类诱导多能干细胞 (hiPSCs) 诱导肝细胞的方法缺乏有效的报告者.
这种限制阻碍了对肝细胞分化协议的评估和优化.

研究的目的:

为人类诱导多能干细胞 (hiPSCs) 开发一种功能性记者系统,以改善肝细胞诱导.
为了创建一个内源性白蛋白 (ALB) - 超级文件绿色光蛋白 (sfGFP) 记者系统.

主要方法:

使用同源定向重组 (HDR) 介导的内置,将ALB-sfGFP报告器插入hiPSC中.
用形态学,多能性和型稳定性来表征修改后的hiPSCs.
在体外和体内评估分化潜力到三个生殖层.
在衍生性肝细胞样细胞 (HLC) 中监测ALB和EGFP的共同表达.

主要成果:

通过内源性ALB-sfGFP记者系统成功生成了hiPSC.
确认修改后的hiPSCs保留了正常的形态,多能性和型.
证明了这些hiPSCs成功分化为肝细胞样细胞 (HLCs).
在生成的HLC中观察到专蛋白 (ALB) 和增强的绿色光蛋白 (EGFP) 的共同表达.

结论:

开发的ALB-sfGFP报告员系统能够从hiPSCs中功能性跟踪肝细胞诱导.
这种报告系统是优化和验证肝细胞分化协议的宝贵工具.
这种方法对推进基于干细胞的肝脏疗法具有重大前景.

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