Differentiation of Human Embryonic Stem Cells to Hepatocytes Using Deleted Variant of HGF and Poly-amino-urethane-Coated Nonwoven Polytetrafluoroethylene Fabric

Cell Transplantation

Article

Nalú Navarro-Alvarez¹  Noriaki Tanaka¹  Jorge David Rivas-Carrillo¹  Tomoki Yamatsuji¹  Naoya Kobayashi¹  Alejandro Soto-Gutierrez¹  Yong Chen¹ 

[1] Department of Surgery, Okayama University Graduate School of Medicine and Dentistry, 2-5-1 Shikata-cho, Okayama 700-8558, Japan;

关键词: Human ES cells;    Hepatocyte;    Hepatocyte growth factor;    Differentiation;   

DOI  :  10.3727/000000006783981945

 received in 2006-02-21, accepted in 2006-03-27,  发布年份 2006

来源: Sage Journals

【 摘 要 】

Human embryonic stem (hES) cells have recently been studied as an attractive source for the development of a bioartificial liver (BAL). Here we evaluate the differentiation capacity of hES cells into hepatocytes. hES cells were subjected to suspension culture for 5 days, and then cultured onto poly-amino-urethane (PAU)-coated, nonwoven polytetrafluoroethylene (PTFE) fabric in the presence of fibroblast growth factor-2 (bFGF) (100 ng/ml) for 3 days, then with deleted variant of hepatocyte growth factor (dHGF) (100 ng/ml) and 1% dimethyl sulfoxide (DMSO) for 8 days, and finally with dexamethasone (10–7 M) for 3 days. The hES cells showed gene expression of albumin in a time-dependent manner of the hepatic differentiation process. The resultant hES-derived hepatocytes metabolized the loaded ammonia and lidocaine at 7.8% and 23.6%, respectively. A million of such hepatocytes produced albumin and urea at 351.2 ng and urea at 7.0 μg. Scanning electron microscopy showed good attachment of the cells on the surface of the PTFE fabric and well-developed glycogen rosettes and Gap junction. In the present work we have demonstrated the efficient differentiation of hES cells to functional hepatocytes. The findings are useful to develop a BAL.

【 授权许可】

Unknown   
© 2006 Cognizant Comm. Corp.