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(Department of Biological Sciences, College of Biological Science and Biotechnology, Cancer and Metabolism Institute, Konkuk University) (Department of Biological Sciences, College of Biological Science and Biotechnology, Cancer and Metabolism Institute, Konkuk University) (Department of Biological Sciences, College of Biological Science and Biotechnology, Cancer and Metabolism Institute, Konkuk University) (Division of Biological Sciences, Biology w/Spec Bioinformatics, Revelle College, University of California) (Department of Applied Chemistry, Dongduk Women's University) (Department of Biological Sciences, College of Biological Science and Biotechnology, Cancer and Metabolism Institute, Konkuk University)
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한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제58권 제1호
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    초록·키워드

    The antitumor activity of a novel synthetic chalcone derivative, 2'-hydroxy-2,4,6'-trimethoxychalcone (1H3MC), was evaluated using the multi-drug-resistant human uterine sarcoma MES-SA/Dx5 cells. Treatment with 1H3MC reduced P-glycoprotein expression in a time-dependent manner and inhibited MES-SA/Dx5 cell proliferation. Cisplatin alone had no effect on cell viability, but combined treatment with cisplatin and 1H3MC exhibited synergistic cytotoxicity. Furthermore, the combination of cisplatin and 1H3MC synergistically cleaved both caspase-3 and its substrate protein, poly(ADP-ribose) polymerase, which resulted in the fragmentation of genomic DNA, a hallmark of apoptosis. These results suggest that 1H3MC is a promising adjuvant agent for overcoming P-glycoprotein-mediated multi-drug resistance in cancer cells.

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