Abstract
The ability to generate integration-free induced hepatocyte-like cells (iHeps) from somatic fibroblasts has the potential to advance their clinical application. Here, we have generated integration-free, functional, and expandable iHeps from mouse somatic fibroblasts. To elicit this direct conversion, we took advantage of an oriP/EBNA1-based episomal system to deliver a set of transcription factors, Gata4, Hnf1a, and Foxa3, to the fibroblasts. The established iHeps exhibit similar morphology, marker expression, and functional properties to primary hepatocytes. Furthermore, integration-free iHeps prolong the survival of fumarylacetoacetate-hydrolase-deficient (Fah(-/-)) mice after cell transplantation. Our study provides a novel concept for generating functional and expandable iHeps using a non-viral, non-integrating, plasmid-based system that could facilitate their pharmaceutical and biomedical application.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Cadherins / genetics
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Cadherins / metabolism
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Cell Differentiation
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Cells, Cultured
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Cytochrome P-450 Enzyme System / genetics
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Cytochrome P-450 Enzyme System / metabolism
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Embryo, Mammalian / cytology
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Fibroblasts / cytology*
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Fibroblasts / metabolism
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GATA4 Transcription Factor / genetics*
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Hepatocyte Nuclear Factor 1-alpha / genetics*
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Hepatocyte Nuclear Factor 3-gamma / genetics*
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Hepatocytes / cytology*
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Hepatocytes / metabolism
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Hydrolases / deficiency
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Hydrolases / genetics
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Karyotyping
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Keratin-18 / genetics
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Keratin-18 / metabolism
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Mice
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Mice, Inbred C57BL
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Mice, Knockout
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Microscopy, Fluorescence
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Serum Albumin / genetics
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Serum Albumin / metabolism
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Zonula Occludens-1 Protein / genetics
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Zonula Occludens-1 Protein / metabolism
Substances
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Cadherins
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GATA4 Transcription Factor
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Hepatocyte Nuclear Factor 1-alpha
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Keratin-18
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Serum Albumin
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Tjp1 protein, mouse
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Zonula Occludens-1 Protein
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Hepatocyte Nuclear Factor 3-gamma
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Cytochrome P-450 Enzyme System
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Hydrolases
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fumarylacetoacetase