GB virus C/hepatitis G virus replicates in human haematopoietic cells and vascular endothelial cells

A novel flavivirus, GB virus C (GBV-C)/hepatitis G virus (HGV), has been detected in chronic liver disease patients. It is known that the viral RNA can be detected in ~ 5% of American blood donors. However, the implications for liver disease and the sites of virus replication remain unknown. Possibl...

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Main Authors: Handa, A, Brown, K
Format: Journal article
Language:English
Published: 2000
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author Handa, A
Brown, K
author_facet Handa, A
Brown, K
author_sort Handa, A
collection OXFORD
description A novel flavivirus, GB virus C (GBV-C)/hepatitis G virus (HGV), has been detected in chronic liver disease patients. It is known that the viral RNA can be detected in ~ 5% of American blood donors. However, the implications for liver disease and the sites of virus replication remain unknown. Possible sites of virus replication were studied by using cell lines and/or primary cells derived from human lymphoid cells, myeloid cells, hepatocytes and endothelial cells. RNA was detected by virus strand-specific RT-PCR and GBV-C/HGV antigen was detected with a rabbit polyclonal anti-E2 (envelope 2) antibody by Western blot analysis. Negative-strand RNA, representative of replicating virus, was detected in lymphoid and megakaryocytoid cell lines and primary vascular endothelial cells. In addition, an increase in virus titre over time was demonstrated and viral antigen was detected, and virus could be passaged to infect fresh cells. However, viral RNA or antigen could not be detected in any of the hepatocyte lines tested. These results indicate that the replication site of GBV-C/HGV is not primarily in hepatocytes and that detection of replicating virus in hepatic tissue may reflect virus replication in haematopoietic cells and/or vascular endothelial cells present in the liver.
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spelling oxford-uuid:514b25b0-66e1-4425-85ac-8982e946c3d62022-03-26T16:18:42ZGB virus C/hepatitis G virus replicates in human haematopoietic cells and vascular endothelial cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:514b25b0-66e1-4425-85ac-8982e946c3d6EnglishSymplectic Elements at Oxford2000Handa, ABrown, KA novel flavivirus, GB virus C (GBV-C)/hepatitis G virus (HGV), has been detected in chronic liver disease patients. It is known that the viral RNA can be detected in ~ 5% of American blood donors. However, the implications for liver disease and the sites of virus replication remain unknown. Possible sites of virus replication were studied by using cell lines and/or primary cells derived from human lymphoid cells, myeloid cells, hepatocytes and endothelial cells. RNA was detected by virus strand-specific RT-PCR and GBV-C/HGV antigen was detected with a rabbit polyclonal anti-E2 (envelope 2) antibody by Western blot analysis. Negative-strand RNA, representative of replicating virus, was detected in lymphoid and megakaryocytoid cell lines and primary vascular endothelial cells. In addition, an increase in virus titre over time was demonstrated and viral antigen was detected, and virus could be passaged to infect fresh cells. However, viral RNA or antigen could not be detected in any of the hepatocyte lines tested. These results indicate that the replication site of GBV-C/HGV is not primarily in hepatocytes and that detection of replicating virus in hepatic tissue may reflect virus replication in haematopoietic cells and/or vascular endothelial cells present in the liver.
spellingShingle Handa, A
Brown, K
GB virus C/hepatitis G virus replicates in human haematopoietic cells and vascular endothelial cells
title GB virus C/hepatitis G virus replicates in human haematopoietic cells and vascular endothelial cells
title_full GB virus C/hepatitis G virus replicates in human haematopoietic cells and vascular endothelial cells
title_fullStr GB virus C/hepatitis G virus replicates in human haematopoietic cells and vascular endothelial cells
title_full_unstemmed GB virus C/hepatitis G virus replicates in human haematopoietic cells and vascular endothelial cells
title_short GB virus C/hepatitis G virus replicates in human haematopoietic cells and vascular endothelial cells
title_sort gb virus c hepatitis g virus replicates in human haematopoietic cells and vascular endothelial cells
work_keys_str_mv AT handaa gbviruschepatitisgvirusreplicatesinhumanhaematopoieticcellsandvascularendothelialcells
AT brownk gbviruschepatitisgvirusreplicatesinhumanhaematopoieticcellsandvascularendothelialcells