Human cord blood cells transplanted into chronically damaged liver exhibit similar characteristics to functional hepatocytes.
Transplant Proc
; 39(1): 240-3, 2007.
Article
em En
| MEDLINE
| ID: mdl-17275513
ABSTRACT
Human umbilical cord blood (CB) cells have many advantages as a source for stem cell transplantation because of immaturity and availability. It has been reported that CB cells transplanted into an injured liver displayed hepatocyte-like phenotypes. However, there have been few studies to characterize CB-derived hepatocyte-like cells (HLCs). In this study, CB cells were transplanted into mice with 2 types of liver damage transient and chronic damage. We analyzed the expression of hepatic differentiation markers in CB-derived HLCs. In the liver of NOD/SCID mice with transient damage, CB-derived HLCs were detected infrequently at 3 weeks after transplantation. In contrast, in the liver of SCID mice damaged chronically by a urokinase-type plasminogen activator transgene under the control of albumin promotor/enhancer (ALB-uPA/SCID mice), more human HLCs colonized the host liver compared with hosts with transiently damaged livers. The CB-derived HLCs in both the transiently and the chronically damaged liver expressed a few markers of human hepatocytes, whereas the transcripts related to mature hepatic functions, including cytochrome P450s, were detected only in the ALB-uPA/SCID mice. These data indicated that CB cells were able to display a similar phenotype to functional hepatocytes in the recipient liver with chronic damage. CB cells may represent a transplantable source for chronic decompensated liver disease.
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Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Hepatócitos
/
Transplante de Células-Tronco de Sangue do Cordão Umbilical
/
Fígado
Tipo de estudo:
Prognostic_studies
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Transplant Proc
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Japão