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Detection of hepatitis C virus RNA by in situ hybridization


, : Detection of hepatitis C virus RNA by in situ hybridization. Liver 12(4 Pt 2): 286-289

Persistent infection with hepatitis C virus (HCV) is associated with chronic hepatitis and cirrhosis which may eventually develop into primary hepatocellular carcinoma. The mechanism of pathogenesis is ill-defined and nothing is known of the distribution, frequency or type of infected cell in the liver of HCV-infected individuals. In this study we have examined liver tissue taken at autopsy from 2 anti-HCV-positive patients by in situ hybridization for the presence of HCV RNA. Viral RNA was detected by autoradiography after hybridization with 125I-labelled riboprobes, representing approximately 35% of the HCV genome. Only a few positive cells were identified in the HCV-infected liver samples, but not in a normal liver sample. Hybridization with an unrelated probe was negative in all samples. The HCV RNA-positive cells were detected with anti-sense but not sense RNA probes, suggesting that they contained a high ratio of genomic:antigenomic RNA. The appearance and distribution of the HCV RNA-positive cells suggested that they were not hepatocytes and were more likely to be lymphocytes or macrophages.

US$29.90

PMID: 1333032


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