title: Establishment and identification of the human multi-drug-resistant cholangiocarcinoma cell line QBC939/ADM.
abstract: In this study, we aim to establish the human multi-drug-resistant cholangiocarcinoma cell line QBC939/ADM which can be grow and passaged steadily in 1 μg/ml concentration of adriamycin in appropriate medium. The human multi-drug-resistant cholangiocarcinoma cell line QBC939/ADM was established using the method of exposure to medium with adriamycin alternated between high and low concentration with gradually increasing concentration. Furthermore, QBC939 and QBC939/ADM were both treated with adriamycin, mitomycin and vindesine, and then detected by MTT assay, respectively. Growth cycle and intra-cellular concentrations of ADM within cells of each group were determined by flow cytometry. Expression levels of P-glycoprotein were detected by Western bolt and real-time PCR. Results showed that, compared with QBC939, the inhibitive rates of adriamycin, mitomycin and vindesine to QBC939/ADM were lower. Content of ADM in the QBC939/ADM was lower. Western bolt and real time PCR showed that P-glycoprotein in the QBC939/ADM group was over expressed. Therefore, QBC939/ADM was establish and identified as the multi-drug-resistant cell line, which can grow and be passaged steadily in 1 μg/ml concentration adriamycin in appropriate medium. And the multi-drug-resistant character of QBC939/ADM was indicated to be related to the over expression of P-glycoprotein induced by chemotherapeutic drugs.
authors.affiliation: Department of Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, 200233 Shanghai, China.
authors.forename: Zhi-Hua
authors.initials: ZH
authors.lastname: Liu
authors.forename: Yan-Ping
authors.initials: YP
authors.lastname: He
authors.forename: Yukun
authors.initials: Y
authors.lastname: Zhou
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Huanlong
authors.initials: H
authors.lastname: Qin
mesh_terms: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1 / Q000378:metabolism; D000903:Antibiotics, Antineoplastic / Q000494:pharmacology; D000972:Antineoplastic Agents, Phytogenic / Q000494:pharmacology; D001650:Bile Duct Neoplasms / Q000473:pathology* / Q000503:physiopathology*; D001653:Bile Ducts, Intrahepatic / Q000473:pathology*; D002453:Cell Cycle / Q000187:drug effects; D045744:Cell Line, Tumor / Q000187:drug effects / Q000502:physiology*; D018281:Cholangiocarcinoma / Q000473:pathology* / Q000503:physiopathology*; D004317:Doxorubicin / Q000494:pharmacology; D018432:Drug Resistance, Multiple / Q000502:physiology*; D006801:Humans; D016685:Mitomycin / Q000494:pharmacology; D014751:Vindesine / Q000494:pharmacology
chemical_list: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; D000903:Antibiotics, Antineoplastic; D000972:Antineoplastic Agents, Phytogenic; D016685:Mitomycin; D004317:Doxorubicin; D014751:Vindesine