Repopulation of mouse liver with human hepatocytes and in vivo infection with hepatitis B virus.
Hepatology
; 33(4): 981-8, 2001 Apr.
Article
en En
| MEDLINE
| ID: mdl-11283864
Mice containing livers repopulated with human hepatocytes would provide excellent in vivo models for studies on human liver diseases and hepatotropic viruses, for which no permissive cell lines exist. Here, we report partial repopulation of the liver of immunodeficient urokinase-type plasminogen activator (uPA)/recombinant activation gene-2 (RAG-2) mice with normal human hepatocytes isolated from the adult liver. In the transplanted mice, the production of human albumin was demonstrated, indicating that human hepatocytes remained functional in the mouse liver for at least 2 months after transplantation. Inoculation of transplanted mice with human hepatitis B virus (HBV) led to the establishment of productive HBV infection. According to human-specific genomic DNA analysis and immunostaining of cryostat liver sections, human hepatocytes were estimated to constitute up to 15% of the uPA/RAG-2 mouse liver. This is proof that normal human hepatocytes can integrate into the mouse hepatic parenchyma, undergo multiple cell divisions, and remain permissive for a human hepatotropic virus in a xenogenic liver. This system will provide new opportunities for studies on etiology and therapy of viral and nonviral human liver diseases, as well as on hepatocyte biology and hepatocellular transplantation.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Trasplante Heterólogo
/
Hepatocitos
/
Hepatitis B
/
Hígado
Tipo de estudio:
Prognostic_studies
Límite:
Adult
/
Animals
/
Humans
Idioma:
En
Revista:
Hepatology
Año:
2001
Tipo del documento:
Article
País de afiliación:
Alemania
Pais de publicación:
Estados Unidos