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2003 SEP 4 - (NewsRx.com & NewsRx.net) -- Transcriptional and transductional targeting improve gene delivery to the ovaries.
"Adenoviruses are efficient gene delivery vehicles but have broad native tropism. To this end, finding ways to target this virus specifically to carcinomas has become an important focus of cancer gene therapy. Transductional and transcriptional forms of targeting have been used with promising results in ovarian carcinoma," researchers in Finland report.
"Therefore, we combined both forms of targeting to investigate the effect on the specificity and efficiency of transgene expression in this disease. We used the tissue-specific SLPI promoter and the ovarian cancer associated targeting adaptor protein, sCARfC6.5," wrote S.D. Barker and colleagues, University of Helsinki, Biomedicum Helsinki.
"This bispecific protein contains the coxsackie-adenovirus receptor ectodomain and a single-chain antibody specific for c-erbB-2. Viruses containing the SLPI or the ubiquitously expressed CMV promoter, with or without sCARfC6.5, were used for infection of ovarian cancer cell lines, primary ovarian tumor cells, and in an orthotopic model of disseminated ovarian carcinoma."
"This dual-targeting strategy increased the efficiency and specificity of transgene expression in ...
Source: HighBeam Research, Transcriptional and transductional targeting improve gene delivery to...