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J. Exp. Med.,
Volume 188, Number 2, July 20, 1998 341-350
By
From the Division of Experimental Pathology, Department of Molecular and Experimental Medicine,
The Scripps Research Institute, La Jolla, California 92037
Hepatocellular carcinoma (HCC) is a common complication of chronic hepatitis B virus
(HBV) infection. The pathogenetic mechanisms potentially responsible for HCC during
chronic HBV infection are not well defined. This study demonstrates that chronic immune-mediated liver cell injury triggers the development of HCC in the absence of viral transactivation, insertional mutagenesis, and genotoxic chemicals. These results strongly suggest that the
immune response to HBV is both necessary and sufficient to cause liver cancer during chronic
HBV infection, and that all other procarcinogenic events associated with HCC are probably
dependent on this process.
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