Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/29710
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    標題: FOXM1 confers to epithelial-mesenchymal transition, stemness and chemoresistance in epithelial ovarian carcinoma cells
    作者: Chiu, Wen-Tai
    Huang, Yu-Fang
    Tsai, Huei-Yu
    Chen, Chien-Chin
    Chang, Chang-Hwa
    Huang, Soon-Cen
    Hsu, Keng-Fu
    Chou, Cheng-Yang
    貢獻者: 化粧品應用與管理系
    關鍵字: ovarian cancer
    FOXM1
    β-CATENIN
    chemoresistance
    stemness
    日期: 2015-02
    上傳時間: 2016-04-19 19:05:27 (UTC+8)
    出版者: Impact Journals Llc
    摘要: Chemoresistance to anti-cancer drugs substantially reduces survival in epithelial ovarian cancer. In this study, we showed that chemoresistance to cisplatin and paclitaxel induced the epithelial-mesenchymal transition (EMT) and a stem cell phenotype in ovarian cancer cells. Chemoresistance was associated with the downregulation of epithelial markers and the upregulation of mesenchymal markers, EMT-related transcription factors, and cancer stem cell markers, which enhanced invasion and sphere formation ability. Overexpression of FOXM1 increased cisplatin-resistance and sphere formation in cisplatin-sensitive and low FOXM1-expressing ovarian cancer cells. Conversely, depletion of FOXM1 via RNA interference reduced cisplatin resistance and sphere formation in cisplatin-resistant and high FOXM1-expressing cells. Overexpression of FOXM1 also increased the expression, nuclear accumulation, and activity of beta-CATENIN in chemoresistant cells, whereas downregulation of FOXM1 suppressed these events. The combination of cisplatin and the FOXM1 inhibitor thiostrepton inhibited the expression of stem cell markers in chemoresistant cells and subcutaneous ovarian tumor growth in mouse xenografts. In an analysis of 106 ovarian cancer patients, high FOXM1 levels in tumors were associated with cancer progression and short progression-free intervals. Collectively, our findings highlight the importance of FOXM1 in chemoresistance and suggest that FOXM1 inhibitors may be useful for treatment of ovarian cancer.
    關聯: Oncotarget, v.6 n.4, pp.2349-2365
    显示于类别:[化妝品應用與管理系(所)] 期刊論文

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