title: Adenoviral transduction efficiency partly correlates with expression levels of integrin alphavbeta5, but not alphavbeta3 in human gastric carcinoma cells.
abstract: 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.
authors.affiliation: First Department of Pathology, Tottori University, Yonago, Tottori 683-8503, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Tatebe
authors.forename: T
authors.initials: T
authors.lastname: Matsuura
authors.forename: K
authors.initials: K
authors.lastname: Endo
authors.forename: R
authors.initials: R
authors.lastname: Doi
authors.forename: A
authors.initials: A
authors.lastname: Goto
authors.forename: K
authors.initials: K
authors.lastname: Sato
authors.forename: H
authors.initials: H
authors.lastname: Ito
mesh_terms: D000256:Adenoviridae / Q000235:genetics*; D015972:Gene Expression Regulation, Neoplastic; D018014:Gene Transfer Techniques; D015316:Genetic Therapy; D005822:Genetic Vectors / Q000235:genetics; D006801:Humans; D016023:Integrins / Q000235:genetics*; D019030:Receptors, Vitronectin / Q000235:genetics*; D013274:Stomach Neoplasms / Q000235:genetics* / Q000628:therapy / Q000821:virology; D014407:Tumor Cells, Cultured
chemical_list: D016023:Integrins; D019030:Receptors, Vitronectin; C064660:integrin alphaVbeta5