Journal
JOURNAL OF DRUG TARGETING
Volume 15, Issue 7-8, Pages 546-551Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10611860701501014
Keywords
polymer-coated virus; passive targeting; cancer; virotherapy
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Adenovirus provides many opportunities as a vector for delivery of cytotoxic genes to tumours. Polymer coating of adenovirus is known to increase its plasma circulation kinetics, affording the possibility of active and passive targeting to turnouts. Here we show that polymer-coating adenovirus (pc-virus) abrogates its normal infectivity in vitro and also in liver following intravenous injection. The coated virus accumulates within solid subcutaneous AB22 mesotheliorna turnouts 40-times more than unmodified virus, and mediates higher levels of transgene expression within tumours. This is the first demonstration of passive turnour targeting of polymer-coated adenoviruses administered by intravenous injection, and also the first time pc-virus has been shown to be infectious following passive targeting to tumours in vivo. This technology provides an interesting option for delivery of therapeutic viruses to disseminated tumour masses by intravenous injection.
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