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- W1901002830 endingPage "9324" @default.
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- W1901002830 abstract "ABSTRACT Recently, we demonstrated that inverted repeat sequences inserted into first-generation adenovirus (Ad) vector genomes mediate precise genomic rearrangements resulting in vector genomes devoid of all viral genes that are efficiently packaged into functional Ad capsids. As a specific application of this finding, we generated adenovirus–adeno-associated virus (AAV) hybrid vectors, first-generation Ad vectors containing AAV inverted terminal repeat sequences (ITRs) flanking a reporter gene cassette inserted into the E1 region. We hypothesized that the AAV ITRs present within the hybrid vector genome could mediate the formation of rearranged vector genomes (ΔAd.AAV) and stimulate transgene integration. We demonstrate here that ΔAd.AAV vectors are efficiently generated as by-products of first-generation adenovirus-AAV vector amplification. ΔAd.AAV genomes contain only the transgene flanked by AAV ITRs, Ad packaging signals, and Ad ITRs. ΔAd.AAV vectors can be produced at a high titer and purity. In vitro transduction properties of these deleted hybrid vectors were evaluated in direct comparison with first-generation Ad and recombinant AAV vectors (rAAVs). The ΔAd.AAV hybrid vector stably transduced cultured cells with efficiencies comparable to rAAV. Since cells transduced with ΔAd.AAV did not express cytotoxic viral proteins, hybrid viruses could be applied at very high multiplicities of infection to increase transduction rates. Southern analysis and pulsed-field gel electrophoresis suggested that ΔAd.AAV integrated randomly as head-to-tail tandems into the host cell genome. The presence of two intact AAV ITRs was crucial for the production of hybrid vectors and for transgene integration. ΔAd.AAV vectors, which are straightforward in their production, represent a promising tool for stable gene transfer in vitro and in vivo." @default.
- W1901002830 created "2016-06-24" @default.
- W1901002830 creator A5003239811 @default.
- W1901002830 creator A5029285661 @default.
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- W1901002830 creator A5076398455 @default.
- W1901002830 date "1999-11-01" @default.
- W1901002830 modified "2023-09-25" @default.
- W1901002830 title "Integrating Adenovirus–Adeno-Associated Virus Hybrid Vectors Devoid of All Viral Genes" @default.
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- W1901002830 doi "https://doi.org/10.1128/jvi.73.11.9314-9324.1999" @default.
- W1901002830 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/112966" @default.
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