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Cell culture-grown hepatitis C virus is infectious in vivo and can be recultured in vitro.


ABSTRACT: Hepatitis C virus (HCV) is a major cause of chronic liver disease, frequently progressing to cirrhosis and increased risk of hepatocellular carcinoma. Current therapies are inadequate and progress in the field has been hampered by the lack of efficient HCV culture systems. By using a recently described HCV genotype 2a infectious clone that replicates and produces infectious virus in cell culture (HCVcc), we report here that HCVcc strain FL-J6/JFH can establish long-term infections in chimpanzees and in mice containing human liver grafts. Importantly, virus recovered from these animals was highly infectious in cell culture, demonstrating efficient ex vivo culture of HCV. The improved infectivity of animal-derived HCV correlated with virions of a lower average buoyant density than HCVcc, suggesting that physical association with low-density factors influences viral infectivity. These results greatly extend the utility of the HCVcc genetic system to allow the complete in vitro and in vivo dissection of the HCV life cycle.

SUBMITTER: Lindenbach BD 

PROVIDER: S-EPMC1533780 | biostudies-literature | 2006 Mar

REPOSITORIES: biostudies-literature

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Cell culture-grown hepatitis C virus is infectious in vivo and can be recultured in vitro.

Lindenbach Brett D BD   Meuleman Philip P   Ploss Alexander A   Vanwolleghem Thomas T   Syder Andrew J AJ   McKeating Jane A JA   Lanford Robert E RE   Feinstone Stephen M SM   Major Marian E ME   Leroux-Roels Geert G   Rice Charles M CM  

Proceedings of the National Academy of Sciences of the United States of America 20060216 10


Hepatitis C virus (HCV) is a major cause of chronic liver disease, frequently progressing to cirrhosis and increased risk of hepatocellular carcinoma. Current therapies are inadequate and progress in the field has been hampered by the lack of efficient HCV culture systems. By using a recently described HCV genotype 2a infectious clone that replicates and produces infectious virus in cell culture (HCVcc), we report here that HCVcc strain FL-J6/JFH can establish long-term infections in chimpanzees  ...[more]

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