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Adenovirus types 11p and 35 attach to and infect primary lymphocytes and monocytes, but hexon expression in T-cells requires prior activation.
Umeå University, Faculty of Medicine, Clinical Microbiology, Virology.
Umeå University, Faculty of Medicine, Clinical Microbiology, Virology.
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2006 (English)In: Virology, ISSN 0042-6822, E-ISSN 1096-0341, Vol. 349, no 1, 96-111 p.Article in journal (Refereed) Published
Abstract [en]

Hematopoietic cells are attractive targets for gene therapy, but the conventional adenovirus (Ad) vectors, based on Ad5, transduce these cells inefficiently. One reason for low permissiveness of hematopoietic cells to infection by species C Ads appears to be inefficient attachment. Vectors pseudotyped with species B fibers are clearly more efficient at transducing hematopoietic cells than Ad5. To evaluate which Ad species B type(s) would be the most efficient vector(s) for primary T-cells, B-cells and monocytes, attachment to and entry of the species B1 serotypes 3p and 7p and the species B2 serotypes 11p and 35 into primary PBMCs was studied. Ad11p and Ad35 were the only serotypes to show efficient binding and for which uptake by PBMCs could be detected. Infection of PBMCs by Ad5, Ad11p and Ad35 was compared. Expression of Ad hexons was detected in stimulated PBMCs, most frequently in T-cells, and in unstimulated monocytes, although B-cells appear to be refractory to productive infection. Replication of Ad DNA was severely restricted in most PBMCs. Neither hexon expression nor genome replication could be detected in unstimulated lymphocytes, but FISH and a real-time PCR-based assay suggested that Ad11p and Ad35 DNA reach the nucleus. Activation thus appears to be required for T-cells to be permissive to Ad gene expression. In summary, there are substantial differences between Ad3p and Ad7p on the one hand and Ad11p and Ad35 on the other, in their ability to interact with PBMCs. Ad11p and Ad35 probably represent vectors of choice for these cell types.

Place, publisher, year, edition, pages
2006. Vol. 349, no 1, 96-111 p.
Identifiers
URN: urn:nbn:se:umu:diva-20642DOI: 10.1016/j.virol.2005.12.044PubMedID: 16483626OAI: oai:DiVA.org:umu-20642DiVA: diva2:209200
Available from: 2009-03-24 Created: 2009-03-24 Last updated: 2017-12-13

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CiteExportLink to record
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