title: In vitro chemoresistance profile and expression/function of MDR associated proteins in resistant cell lines derived from CCRF-CEM, K562, A549 and MDA MB 231 parental cells.
abstract: Although cellular experiments have elucidated a number of active principles in the study of the multidrug resistance (MDR) phenomena, most of the drug resistant tumor cells were derived from different parental cell lines. This fact limits generalization of some experimental data and conclusions, and therefore we selected and characterized cell lines resistant to various anti-cancer agents derived from four parental cell lines: CEM (human T-lymphoblastic leukemia), K562 (human myeloid leukemia), A549 (human lung adenocarcinoma) and MDAMB 231 (human breast adenocarcinoma). In total we obtained a set of 42 resistant sublines, which is an excellent tool for the future studies of different aspects of MDR. In this study we report on some basic characteristics of these sublines, namely, cross-resistance to other anti-cancer drugs investigated by in vitro MTT assay, expression of MDR associated proteins (Pgp, MRP1, LRP, GST-pi and Topo IIalpha) as well as the functional activity of Pgp and MRP.
authors.affiliation: Laboratory of Experimental Medicine, Dpt. of Pediatrics, Faculty of Medicine, Palacky University and Faculty Hospital in Olomouc, Olomouc, Czech Republic.
authors.forename: V
authors.initials: V
authors.lastname: Noskova
authors.forename: P
authors.initials: P
authors.lastname: Dzubak
authors.forename: G
authors.initials: G
authors.lastname: Kuzmina
authors.forename: A
authors.initials: A
authors.lastname: Ludkova
authors.forename: D
authors.initials: D
authors.lastname: Stehlik
authors.forename: R
authors.initials: R
authors.lastname: Trojanec
authors.forename: A
authors.initials: A
authors.lastname: Janostakova
authors.forename: G
authors.initials: G
authors.lastname: Korinkova
authors.forename: V
authors.initials: V
authors.lastname: Mihal
authors.forename: M
authors.initials: M
authors.lastname: Hajduch
mesh_terms: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1 / Q000378:metabolism; D018528:ATP-Binding Cassette Transporters / Q000378:metabolism*; D000970:Antineoplastic Agents / Q000494:pharmacology; D018432:Drug Resistance, Multiple; D019008:Drug Resistance, Neoplasm; D005260:Female; D019450:Genes, MDR; D006801:Humans; D066298:In Vitro Techniques; D027425:ATP-Binding Cassette, Sub-Family C Proteins / Q000378:metabolism*; D009363:Neoplasm Proteins / Q000378:metabolism*; D009369:Neoplasms / Q000378:metabolism*; D014407:Tumor Cells, Cultured
chemical_list: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; D018528:ATP-Binding Cassette Transporters; D000970:Antineoplastic Agents; D027425:ATP-Binding Cassette, Sub-Family C Proteins; D009363:Neoplasm Proteins