1887

Abstract

The majority of hepatitis C virus (HCV)-infected individuals become chronically infected, which can result in liver cirrhosis and hepatocellular carcinoma. Patients with chronic HCV are unable to prime and maintain vigorous T-cell responses, which are required to rid the body of the viral infection. Dendritic cells (DCs) are the professional antigen-presenting cells that probably play a dominant role in priming and maintaining vigorous T-cell responses in HCV infection. Furthermore, inefficient DC function may play an important role in HCV chronicity. In order to determine the effect of HCV NS3 and core proteins on phenotype and function of human DCs, recombinant adenoviral vectors containing NS3 or core genes were used to infect human DCs. HCV NS3- or core-protein expression in DCs was confirmed by Western blotting and immunofluorescence staining. The DCs expressing HCV NS3 or core proteins expressed several inflammatory cytokine mRNAs, had a normal phenotype and effectively stimulated allogeneic T cells, as well as T cells specific for another foreign antigen (tetanus toxoid). These findings are important for rational design of cellular-vaccine approaches for the immunotherapy of chronic HCV.

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2006-01-01
2019-11-15
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