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JoVE Journal
Biology
活线粒体染色在细胞分选中纯化人诱导多能干细胞肝细胞的应用
活线粒体染色在细胞分选中纯化人诱导多能干细胞肝细胞的应用
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JoVE Journal Biology
Application of Live Mitochondria Staining in Cell-Sorting to Purify Hepatocytes Derived from Human Induced Pluripotent Stem Cells

活线粒体染色在细胞分选中纯化人诱导多能干细胞肝细胞的应用

Full Text
770 Views
08:51 min
December 1, 2023

DOI: 10.3791/65777-v

Hiromi Yamashita1, Fumiyuki Hattori1

1Innovative Regenerative Medicine, Graduate School of Medicine,Kansai Medical University

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Please note that some of the translations on this page are AI generated. Click here for the English version.

Summary

来源于多能干细胞的肝细胞可以通过细胞分选进行纯化,使用线粒体和活化的白细胞粘附分子(ALCAM,也称为CD166)染色的组合。

Transcript

我们的研究范围是纯化人诱导的多能干细胞来源的肝细胞,无需基因改造。我们的目标是解决与未分化细胞相关的致瘤风险问题,即从人类 iPS 细胞分化的细胞中。目前的实验挑战之一是由于分选的机械存储,细胞纯度低。

我们正在开发一种新的纯化方法,利用肝细胞独特的代谢特性,进行大规模纯化。一种针对肝祖细胞的非细胞分选方法无法获得纯肝细胞。另一种用于成熟肝细胞的药物只能治疗一小部分肝细胞,因为标记蛋白的表达有限。

相比之下,我们的方法可以获得不同成熟水平的肝细胞,并且具有更高的前程。人iPS细胞来源的肝细胞极不成熟,纯化后肝细胞宏表达减少较多。我们未来的目标是利用类器官技术增强肝细胞调节,并利用再生医学和药物发现的日常进展来增强肝细胞调节。

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关键字: 活线粒体染色 细胞分选 肝细胞 人诱导多能干细胞 细胞再生医学 肿瘤发生 流式细胞仪 ALCAM 白蛋白表达

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