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J Hepatol. 2009 Jul;51(1):187-211. doi: 10.1016/j.jhep.2009.03.009. Epub 2009 Apr 2.

Role of epigenetics in liver-specific gene transcription, hepatocyte differentiation and stem cell reprogrammation.

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1
Department of Toxicology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium. Sarah.Snykers@vub.ac.be

Abstract

Controlling both growth and differentiation of stem cells and their differentiated somatic progeny is a challenge in numerous fields, from preclinical drug development to clinical therapy. Recently, new insights into the underlying molecular mechanisms have unveiled key regulatory roles of epigenetic marks driving cellular pluripotency, differentiation and self-renewal/proliferation. Indeed, the transcription of genes, governing cell-fate decisions during development and maintenance of a cell's differentiated status in adult life, critically depends on the chromatin accessibility of transcription factors to genomic regulatory and coding regions. In this review, we discuss the epigenetic control of (liver-specific) gene-transcription and the intricate interplay between chromatin modulation, including histone (de)acetylation and DNA (de)methylation, and liver-enriched transcription factors. Special attention is paid to their role in directing hepatic differentiation of primary hepatocytes and stem cells in vitro.

PMID:
19457566
DOI:
10.1016/j.jhep.2009.03.009
[Indexed for MEDLINE]
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