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Differentiation and isolation of iPSC-derived remodeling ductal plate-like cells by use of an AQP1-GFP reporter human iPSC line.

07:00 EST 31st January 2019 | BioPortfolio

Summary of "Differentiation and isolation of iPSC-derived remodeling ductal plate-like cells by use of an AQP1-GFP reporter human iPSC line."

Cholangiocytes are the epithelial cells that line bile ducts, and ductal plate malformation is a developmental anomaly of bile ducts that causes severe congenital biliary disorders. However, because of a lack of specific marker genes, methods for the stepwise differentiation and isolation of human induced pluripotent stem cell (hiPSC)-derived cholangiocyte progenitors at ductal plate stages have not been established. We herein generated an AQP1-GFP reporter hiPSC line and developed a combination treatment with transforming growth factor (TGF) β2 and epidermal growth factor (EGF) to induce hiPSC-derived hepatoblasts into AQP1 cells in vitro. By confirming that the isolated AQP1 cells showed similar gene expression patterns to cholangiocyte progenitors at the remodeling ductal plate stage around gestational week (GW) 20, we established a differentiation protocol from hiPSCs through SOX9CK19AQP1 ductal plate-like cells into SOX9CK19AQP1 remodeling ductal plate-like cells. We further generated 3D bile duct-like structures from the induced ductal plate-like cells. These results suggest that AQP1 is a useful marker for the generation of remodeling ductal plate cells from hiPSCs. Our methods may contribute to elucidating the differentiation mechanisms of ductal plate cells and the pathogenesis of ductal plate malformation.

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This article was published in the following journal.

Name: Stem cell research
ISSN: 1876-7753
Pages: 101400

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