Immunohistochemical detection of C-100 hepatitis C virus antigen in formaldehyde-fixed paraffin-embedded liver tissue. Correlation with serum, tissue and in situ RT-PCR results
AbstractWe localized HCV C-100 protein in liver biopsies of 15 patients with chronic hepatitis C using immunohistochemistry. The results were compared to serum, tissue extract analysis of HCV RNA and in situ RT-PCR described in a previous study. HCV was detected in 80% of the sera tested, in 40% of the tissue extracts and in 80% and 60% of the tissue sections tested by immunohistochemistry and in situ RTPCR respectively. Compared to the serum positive cases, 83% and 67% of the cases were respectively positive with immunohistochemistry and in situ RT-PCR and 41% were positive with tissue extract detection. Compared to the tissue extract positive cases, 25% and 50% of the cases were respectively positive with immunohistochemistry and in situ RT-PCR. Finally, 75% of the cases positive by immunohistochemistry were also positive by in situ RT-PCR. These results underline the complementarity of the different methods for the precise diagnosis of hepatitis C.
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Copyright (c) 2009 L BenkoÃ«l, P Biagini, F Dodero, X De Lamballerie, P De Micco, A Chamlian, D Lombardo
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