| pubmed-article:15331734 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:15331734 | lifeskim:mentions | umls-concept:C0017428 | lld:lifeskim |
| pubmed-article:15331734 | lifeskim:mentions | umls-concept:C0013682 | lld:lifeskim |
| pubmed-article:15331734 | lifeskim:mentions | umls-concept:C0456389 | lld:lifeskim |
| pubmed-article:15331734 | lifeskim:mentions | umls-concept:C0678594 | lld:lifeskim |
| pubmed-article:15331734 | lifeskim:mentions | umls-concept:C1517499 | lld:lifeskim |
| pubmed-article:15331734 | lifeskim:mentions | umls-concept:C1261552 | lld:lifeskim |
| pubmed-article:15331734 | lifeskim:mentions | umls-concept:C1510800 | lld:lifeskim |
| pubmed-article:15331734 | pubmed:issue | 18 | lld:pubmed |
| pubmed-article:15331734 | pubmed:dateCreated | 2004-8-27 | lld:pubmed |
| pubmed-article:15331734 | pubmed:abstractText | Adenovirus serotype 5 (Ad5) vectors containing Ad B-group fibers have become increasingly popular as gene transfer vectors because they efficiently transduce human cell types that are relatively refractory to Ad5 infection. So far, most B-group fiber-containing vectors have been first-generation vectors, deleted of E1 and/or E3 genes. Transduction with these vectors, however, results in viral gene expression and is associated with cytotoxicity and immune responses against transduced cells. To circumvent these problems, we developed fiber-chimeric Ad vectors devoid of all viral genes that were produced either by the homologous recombination of first-generation vectors or by using the Cre/lox-based helper virus system. In this study we compared early steps of infection between first-generation (35-kb genome) and Ad vectors devoid of all viral genes with genome sizes of 28 kb and 12.6 kb. All vectors possessed an Ad35-derived fiber knob domain, which uses CD46 as a primary attachment receptor. Using immortalized human hematopoietic cell lines and primary human CD34-positive hematopoietic cells, we found that the Ad genome size did not affect the efficiency of virus attachment to and internalization into cells. Furthermore, independently of the genome length and structure, all vectors migrated to the nucleus through late endosomal and lysosomal cellular compartments. However, the vector containing the short 12.6-kb genome was unable to efficiently escape from endosomes and deliver its DNA into the nucleus. Moreover, compared to other vectors, these Ad particles were less stable and had an abnormal capsid protein composition, including a lack of capsid-stabilizing protein IX. Our data indicate that the size and structure of the packaged viral genomes can affect the integrity of Ad particles, which in turn results in lower infectivity of Ad vectors. | lld:pubmed |
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| pubmed-article:15331734 | pubmed:language | eng | lld:pubmed |
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| pubmed-article:15331734 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:15331734 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:15331734 | pubmed:month | Sep | lld:pubmed |
| pubmed-article:15331734 | pubmed:issn | 0022-538X | lld:pubmed |
| pubmed-article:15331734 | pubmed:author | pubmed-author:ShayakhmetovD... | lld:pubmed |
| pubmed-article:15331734 | pubmed:author | pubmed-author:LieberAndréA | lld:pubmed |
| pubmed-article:15331734 | pubmed:author | pubmed-author:GharwanHelenH | lld:pubmed |
| pubmed-article:15331734 | pubmed:author | pubmed-author:LiZong-YiZY | lld:pubmed |
| pubmed-article:15331734 | pubmed:author | pubmed-author:TernovoiVladi... | lld:pubmed |
| pubmed-article:15331734 | pubmed:author | pubmed-author:GaggarAnujA | lld:pubmed |
| pubmed-article:15331734 | pubmed:author | pubmed-author:SandigVolkerV | lld:pubmed |
| pubmed-article:15331734 | pubmed:copyrightInfo | Copyright 2004 American Society for Microbiology | lld:pubmed |
| pubmed-article:15331734 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:15331734 | pubmed:volume | 78 | lld:pubmed |
| pubmed-article:15331734 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:15331734 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:15331734 | pubmed:pagination | 10009-22 | lld:pubmed |
| pubmed-article:15331734 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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