Chemical Cocktails Enable Hepatic Reprogramming of Mouse Fibroblasts with a Single Transcription Factor.

Chemical Cocktails Enable Hepatic Reprogramming of Mouse Fibroblasts with a Single Transcription Factor.
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化学混合物能够利用单一转录因子对小鼠成纤维细胞进行肝脏重编程

DOI:
10.1016/j.stemcr.2017.06.013
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发表时间:
2017-08-08
期刊:
影响因子:
5.9
通讯作者:
Xie X
Xie X
中科院分区:
医学1区
文献类型:
--
作者:
Guo R;Tang W;Yuan Q;Hui L;Wang X;Xie X

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肝脏或肝细胞移植受到供体器官可用性的限制。不依赖供体来源的功能性肝细胞在再生医学和制药工业中具有广泛的应用。最近的研究表明,化学鸡尾酒可以诱导成纤维细胞重编程为一系列功能性体细胞。在这里,我们表明,小鼠成纤维细胞可以转分化成肝细胞样细胞(iHeps)使用只有一个转录因子(TF)(Foxa 1,Foxa 2,或Foxa 3)加上化学鸡尾酒。这些iHep显示典型的上皮形态,表达多种肝细胞特异性基因,并获得肝细胞功能。遗传谱系追踪证实了这些iHep的成纤维细胞来源。更有趣的是,这些iHep在体外是可扩展的,并且可以重建富马酰乙酰乙酸水解酶缺陷(Fah−/−)小鼠的受损肝组织。我们的研究提供了一种通过使用单一TF加化学鸡尾酒来产生功能性肝细胞样细胞的策略,并且更接近于产生全化学iHep。仅使用一种TF加一种化学混合物将成纤维细胞转化为iHep遗传谱系追踪证实了这些iHep的成纤维细胞来源iHep在体外和体内都是消耗性的和功能性的在这篇文章中,Xie和同事表明,小鼠成纤维细胞可以仅使用一种转录因子加一种化学混合物转分化为肝细胞样细胞(iHep)。遗传谱系追踪证实了这些iHep的成纤维细胞起源。这些iHep在体外是可膨胀的,并且可以重建富马酰乙酰乙酸水解酶缺陷小鼠的受损肝组织。
Liver or hepatocytes transplantation is limited by the availability of donor organs. Functional hepatocytes independent of the donor sources may have wide applications in regenerative medicine and the drug industry. Recent studies have demonstrated that chemical cocktails may induce reprogramming of fibroblasts into a range of functional somatic cells. Here, we show that mouse fibroblasts can be transdifferentiated into the hepatocyte-like cells (iHeps) using only one transcription factor (TF) (Foxa1, Foxa2, or Foxa3) plus a chemical cocktail. These iHeps show typical epithelial morphology, express multiple hepatocyte-specific genes, and acquire hepatocyte functions. Genetic lineage tracing confirms the fibroblast origin of these iHeps. More interestingly, these iHeps are expandable in vitro and can reconstitute the damaged hepatic tissues of the fumarylacetoacetate hydrolase-deficient (Fah−/−) mice. Our study provides a strategy to generate functional hepatocyte-like cells by using a single TF plus a chemical cocktail and is one step closer to generate the full-chemical iHeps. Fibroblasts are converted to iHeps using only one TF plus a chemical cocktail Genetic lineage tracing confirms the fibroblast origin of these iHeps The iHeps are expendable and functional both in vitro and in vivo In this article, Xie and colleagues show that mouse fibroblasts can be transdifferentiated into the hepatocyte-like cells (iHeps) using only one transcription factor plus a chemical cocktail. Genetic lineage tracing confirms the fibroblast origin of these iHeps. These iHeps are expandable in vitro and can reconstitute the damaged hepatic tissues of the fumarylacetoacetate hydrolase-deficient mice.
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