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Stem Cell Reports. 2013 Oct 3;1(4):322-35. doi: 10.1016/j.stemcr.2013.08.006. eCollection 2013.

Long-term self-renewal of human ES/iPS-derived hepatoblast-like cells on human laminin 111-coated dishes.

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1
Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan ; Laboratory of Hepatocyte Differentiation, National Institute of Biomedical Innovation, Osaka 567-0085, Japan ; iPS Cell-Based Research Project on Hepatic Toxicity and Metabolism, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan.

Abstract

The establishment of self-renewing hepatoblast-like cells (HBCs) from human pluripotent stem cells (PSCs) would realize a stable supply of hepatocyte-like cells for medical applications. However, the functional characterization of human PSC-derived HBCs was not enough. To purify and expand human PSC-derived HBCs, human PSC-derived HBCs were cultured on dishes coated with various types of human recombinant laminins (LN). Human PSC-derived HBCs attached to human laminin-111 (LN111)-coated dish via integrin alpha 6 and beta 1 and were purified and expanded by culturing on the LN111-coated dish, but not by culturing on dishes coated with other laminin isoforms. By culturing on the LN111-coated dish, human PSC-derived HBCs were maintained for more than 3 months and had the ability to differentiate into both hepatocyte-like cells and cholangiocyte-like cells. These expandable human PSC-derived HBCs would be manageable tools for drug screening, experimental platforms to elucidate mechanisms of hepatoblasts, and cell sources for hepatic regenerative therapy.

PMID:
24319667
PMCID:
PMC3849256
DOI:
10.1016/j.stemcr.2013.08.006
[Indexed for MEDLINE]
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