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Adenoviral transduction efficiency partly correlates with expression levels of integrin alphavbeta5, but not alphavbeta3 in human gastric carcinoma cells.

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Adenovirus has attracted much attention as a vector for gene therapy. Integrin alphavbeta3 and alphavbeta5 mediate adenovirus internalization into cells. We examined adenoviral transduction efficiency and expression of integrin alphavbeta3 alphavbeta5 in 9 human gastric carcinoma cell lines. The percentage of -gal-positive cells was more than 85% 3 days after infection with recombinant adenovirus carrying the bacterial LacZ gene (AxCALacZ) at a dose of 25 MOI in 7 cell lines and the transduction efficiency was 32 and 42% in HSC-39 and MKN-28 cells, respectively. Adenoviral transduction efficiency did not correlate with the histological cell types. Flow cytometric analysis revealed relatively high expression of integrin alphavbeta5 in MKN-28 and OCUM-2M cells, followed by MKN-1, MKN-7, MKN-45, MKN-74, TMK-1 and KATO-III cells. HSC-39 cells minimally expressed integrin alphavbeta5. On the other hand, integrin alphavbeta3 was expressed only in MKN-1 cells. These results suggest that the adenovirus vector might be useful for gene transduction into human gastric carcinoma cells and the transduction efficiency partly correlates with the expression levels of integrin alphavbeta5 but not integrin alphavbeta3.
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Document Type: Research Article

Affiliations: First Department of Pathology, Tottori University, Yonago, Tottori 683-8503, Japan.

Publication date: January 1, 1998

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  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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