title: Derivation and characterization of hepatic progenitor cells from human embryonic stem cells.
abstract: The derivation of hepatic progenitor cells from human embryonic stem (hES) cells is of value both in the study of early human liver organogenesis and in the creation of an unlimited source of donor cells for hepatocyte transplantation therapy. Here, we report for the first time the generation of hepatic progenitor cells derived from hES cells. Hepatic endoderm cells were generated by activating FGF and BMP pathways and were then purified by fluorescence activated cell sorting using a newly identified surface marker, N-cadherin. After co-culture with STO feeder cells, these purified hepatic endoderm cells yielded hepatic progenitor colonies, which possessed the proliferation potential to be cultured for an extended period of more than 100 days. With extensive expansion, they co-expressed the hepatic marker AFP and the biliary lineage marker KRT7 and maintained bipotential differentiation capacity. They were able to differentiate into hepatocyte-like cells, which expressed ALB and AAT, and into cholangiocyte-like cells, which formed duct-like cyst structures, expressed KRT19 and KRT7, and acquired epithelial polarity. In conclusion, this is the first report of the generation of proliferative and bipotential hepatic progenitor cells from hES cells. These hES cell-derived hepatic progenitor cells could be effectively used as an in vitro model for studying the mechanisms of hepatic stem/progenitor cell origin, self-renewal and differentiation.
authors: Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, College of Life Sciences, Peking University, Beijing, China.
authors: Dongxin
authors: D
authors: Zhao
authors: Song
authors: S
authors: Chen
authors: Jun
authors: J
authors: Cai
authors: Yushan
authors: Y
authors: Guo
authors: Zhihua
authors: Z
authors: Song
authors: Jie
authors: J
authors: Che
authors: Chun
authors: C
authors: Liu
authors: Chen
authors: C
authors: Wu
authors: Mingxiao
authors: M
authors: Ding
authors: Hongkui
authors: H
authors: Deng
mesh_terms: D015820:Cadherins / Q000378:metabolism; D002454:Cell Differentiation; D018920:Coculture Techniques; D053595:Embryonic Stem Cells / Q000166:cytology*; D005434:Flow Cytometry; D006801:Humans; D008099:Liver / Q000166:cytology*; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D015820:Cadherins