Sustained survival of human hepatocytes in mice: A model for in vivo infection with human hepatitis B and hepatitis delta viruses
| Autor: | Ralph H. Schwall, Harry B. Greenberg, Jeffrey S. Glenn, Bruno B. Bordier, Patricia L. Marion, John M. Cullen, Kazuo Ohashi, Leonard Meuse, Hiroyuki Nakai, Mark A. Kay |
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| Rok vydání: | 2000 |
| Předmět: |
Hepatitis B virus
Time Factors Cell Transplantation Transplantation Heterologous Viral transformation Mice SCID Biology General Biochemistry Genetics and Molecular Biology Hepatitis B virus PRE beta Mice Mice Inbred NOD In vivo Animals Humans General Medicine Proto-Oncogene Proteins c-met Hepatitis B Virology Hepatitis D Disease Models Animal Liver Immunology Hepatitis D virus Hepatitis Delta Virus Human hepatitis Viral load |
| Zdroj: | Nature Medicine. 6:327-331 |
| ISSN: | 1546-170X 1078-8956 |
| DOI: | 10.1038/73187 |
| Popis: | Persistence of hepatocytes transplanted into the same or related species has been established. The long-term engraftment of human hepatocytes into rodents would be useful for the study of human viral hepatitis, where it might allow the species, technical and size limitations of the current animal models to be overcome. Although transgenic mice expressing the hepatitis B virus (HBV) genome produce infectious virus in their serum, the viral life cycle is not complete, in that the early stages of viral binding and entry into hepatocytes and production of an episomal transcriptional DNA template do not occur. As for hepatitis delta virus (HDV), another cause of liver disease, no effective therapy exists to eradicate infection, and it remains resistant even to recent regimens that have considerably changed the treatment of HBV (ref. 13). Here, we demonstrate long-term engraftment of primary human hepatocytes transplanted in a matrix under the kidney capsule of mice with administration of an agonistic antibody against c-Met. These mice were susceptible to HBV infection and completion of the viral life cycle. In addition, we demonstrate super-infection of the HBV-infected mice with HDV. Our results describe a new xenotransplant model that allows study of multiple aspects of human hepatitis viral infections, and may enhance studies of human liver diseases. |
| Databáze: | OpenAIRE |
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