公开(公告)号：ZA201506189B

公开(公告)日：2019-11-27

申请号：ZA201506189

申请日：2015-08-25

Applicant: UNIV HEALTH NETWORK ,  HOSPITAL FOR SICK CHILDREN

Inventor： GORDON KELLER ,  SHINICHIRO OGAWA ,  ANAND GHANEKAR ,  CHRISTINE BEAR ,  BINITA M KAMATH ,  MINA OGAWA ,  JAMES SURAPISITCHAT

Abstract: Methods for producing hepatocyte and/or cholangiocyte lineage cells from pluripotent stem cells, the method comprising (a) specifying the extended nodal agonist treated induced endodermal cell population to obtain a cell population comprising hepatocyte and/or cholangiocyte progenitors by contacting the extended nodal agonist treated induced endodermal cell population with specification media comprising a FGF agonist and a BMP4 agonist and/or active conjugates and/or fragments thereof; (b) inducing maturation, and optionally further lineage specification and/or expansion of the hepatocyte and/or cholangiocyte progenitors of the cell population to obtain a population comprising hepatocyte lineage cells such as hepatoblasts, hepatocytes and/or cholangiocytes, the inducing maturation step comprising generating aggregates of the cell population. Optionally, the method also comprises activating the cAMP pathway within the aggregates and forming co-aggregates.