Future Challenges in the Generation of Hepatocyte-Like Cells From Human Pluripotent Stem Cells
Abstract
Purpose of Review
The purpose of this review is to provide an updated perspective on directing human pluripotent stem cells (hPSCs) to hepatocyte-like-cells (HLCs) and the associated challenges.
Recent Findings
Recent advances in the hepatocyte differentiation field have largely been focused on increasing the reproducibility and definition of culture systems to further their translation to a clinical setting. There have been advances using new extracellular matrices such as human laminins, and recent work using small molecules to drive the differentiation process has dramatically reduced the cost of producing HLCs with equivalent phenotypes to growth factor-derived cells.
Summary
There are still several key aspects that remain unresolved, including the immature phenotype of hPSC-derived HLCs (a major hurdle for hPSC-derived progeny). Another key question is the zonal identity of the HLCs produced in vitro, which will have major implications in terms of disease modeling and drug metabolism. To date, there has been little investigation of this aspect of hepatic biology reported in the field.
Keywords
Human pluripotent stem cells Induced pluripotent stem cells Embryonic stem cells Endoderm Hepatocytes Hepatic differentiationNotes
Acknowledgements
The authors would like to thank Carina Knudsen at the University of Oslo Photo and Graphics Service for the illustration in Fig. 1.
Compliance with Ethical Standards
Conflict of Interest
Richard Siller, Santosh Mathapati, and Karim Si-Tayeb declare that they have no conflict of interest.
Gareth J Sullivan is named as an inventor on a provisional application for a patent describing the small molecule-driven hepatocyte differentiation of human pluripotent stem cells.
Sebastian Greenhough is named as an inventor on a provisional application for a patent describing the small molecule-driven hepatocyte differentiation of human pluripotent stem cells.
Human and Animal Rights and Informed Consent
This article does not contain any studies with human or animal subjects performed by any of the authors.
References
Papers of particular interest, published recently, have been highlighted as: • Of importance
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