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Establishment and identification of the human multi-drug-resistant cholangiocarcinoma cell line QBC939/ADM

Establishment and identification of the human multi-drug-resistant cholangiocarcinoma cell line QBC939/ADM,10.1007/s11033-010-9975-7,Molecular Biology

Establishment and identification of the human multi-drug-resistant cholangiocarcinoma cell line QBC939/ADM   (Citations: 1)
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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.
Journal: Molecular Biology Reports - MOL BIOL REP , vol. 38, no. 5, pp. 3075-3082, 2011
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