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Title

CELECOXIB UP REGULATES THE EXPRESSION OF DRUG EFFLUX TRANSPORTER ABCG2 IN BREAST CANCER CELL LINES

Pages

  1393-1401

Abstract

 Elevated expression of the drug efflux transporter ABCG2 seems to correlate with MULTIDRUG RESISTANCE of cancer cells. Specific COX-2 inhibitor CELECOXIB has been shown to enhance the sensitivity of cancer cells to anticancer drugs. To clarify whether ABCG2 inhibition is involved in the sensitizing effect of CELECOXIB, we investigated whether the expression of ABCG2 in breast cancer cell lines could be modulated by CELECOXIB. The expression of the multidrug resistant gene (ABCG2) at mRNA and protein level was detected by real-time quantitative reverse transcription-polymerase chain reaction and flow cytometry analysis, respectively. Among three human breast cancer cell lines, ABCG2 and COX-2 were highly expressed in MCF7-MX and MDA-MB-231 cells, respectively. The COX-2 inhibitor CELECOXIB up-regulated the expression of ABCG2 mRNA in MCF-7 and MCF7-MX cells, which was accompanied by increased ABCG2 protein expression. While CELECOXIB was able to block the 12-O-tetradecanoylphorbol-13-acetate (TPA) -mediated increase in COX-2 expression in MDA-MB-231 cells, it increased the expression of ABCG2 up to 4.27 times to the control level at mRNA level and with less intensity at protein level. Our findings provide evidence that CELECOXIB up-regulates ABCG2 expression in human breast cancer cells and proposed that ABCG2 is not involved in chemosensitizing effects of CELECOXIB.

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    APA: Copy

    KALALINIA, FATEMEH, ELAHIAN, FATEMEH, MOSAFFA, FATEMEH, & BEHRAVAN, JAVAD. (2014). CELECOXIB UP REGULATES THE EXPRESSION OF DRUG EFFLUX TRANSPORTER ABCG2 IN BREAST CANCER CELL LINES. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH (IJPR), 13(4), 1393-1401. SID. https://sid.ir/paper/288296/en

    Vancouver: Copy

    KALALINIA FATEMEH, ELAHIAN FATEMEH, MOSAFFA FATEMEH, BEHRAVAN JAVAD. CELECOXIB UP REGULATES THE EXPRESSION OF DRUG EFFLUX TRANSPORTER ABCG2 IN BREAST CANCER CELL LINES. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH (IJPR)[Internet]. 2014;13(4):1393-1401. Available from: https://sid.ir/paper/288296/en

    IEEE: Copy

    FATEMEH KALALINIA, FATEMEH ELAHIAN, FATEMEH MOSAFFA, and JAVAD BEHRAVAN, “CELECOXIB UP REGULATES THE EXPRESSION OF DRUG EFFLUX TRANSPORTER ABCG2 IN BREAST CANCER CELL LINES,” IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH (IJPR), vol. 13, no. 4, pp. 1393–1401, 2014, [Online]. Available: https://sid.ir/paper/288296/en

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