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Title: Expression of hepatitis C virus core protein impairs DNA repair in human hepatoma cells
Authors: van Pelt, Jos ×
Severi, Tamara
Crabbé, Martine
Van Eetveldt, A
Verslype, Chris
Roskams, Tania
Fevery, Johan #
Issue Date: May-2004
Publisher: Elsevier sci ireland ltd
Series Title: Cancer letters vol:209 issue:2 pages:197-205
Abstract: Several studies have documented the important association between hepatitis C virus (HCV) infection and hepatocellular carcinoma. The mechanisms involved are still unknown and could involve viral proteins. We investigated the effect of HCV-core protein on DNA repair after UV-induced DNA damage. Therefore, we developed and characterized stably transfected HepG2 cell lines that express HCV-core protein as demonstrated by immunohistochemistry. These cells were significantly less capable to repair the DNA damage than control cells. This suppression of DNA repair by HCV-core protein renders the cells more sensitive to acquire mutations that in combination with enhanced in vivo cell turnover in the infected liver might increase the likelihood of malignant transformation of HCV-infected cells by other viral factors or upon exposure to environmental factors (food, drugs, smoking, alcohol, etc.). Interestingly, expression of the full-length HCV core did increase the cell doubling time in one of the cell lines we had developed that could not be attributed to an increase in apoptosis or change in telomerase activity in these cells.
ISSN: 0304-3835
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Hepatology
Translational Cell & Tissue Research
× corresponding author
# (joint) last author

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