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    國家衛生研究院 NHRI > 癌症研究所 > 其他 > 期刊論文 >  Item 3990099045/10189
    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/10189


    Title: Inhibition of the EGFR/STAT3/CEBPD axis reverses cisplatin cross-resistance with paclitaxel in the urothelial carcinoma of the urinary bladder
    Authors: Wang, WJ;Li, CF;Chu, YY;Wang, YH;Hour, TC;Yen, CJ;Chang, WC;Wang, JM
    Contributors: National Institute of Cancer Research
    Abstract: PURPOSE: Cisplatin (CDDP) is frequently used in combination chemotherapy with paclitaxel for treating urothelial carcinoma of the urinary bladder (UCUB). CDDP cross-resistance has been suggested to develop with paclitaxel, thus hindering successful UCUB treatment. Therefore, elucidating the mechanisms underlying CDDP-induced anticancer drug resistance is imperative and may provide an insight in developing novel therapeutic strategy. EXPERIMENTAL DESIGN: Loss-of-function assays were performed to elucidate the role of the EGFR and STAT3 in CDDP-induced CCAAT/enhancer-binding protein delta (CEBPD) expression in UCUB cells. Reporter and in vivo DNA-binding assays were employed to determine whether CEBPD directly regulates ATP binding cassette subfamily B member 1 (ABCB1) and ATP binding cassette subfamily C member 2 (ABCC2) activation. Finally, a xenograft animal assay was used to examine the abilities of gefitinib and S3I-201 (a STAT3 inhibitor) to reverse CDDP and paclitaxel sensitivity. RESULTS: CEBPD expression was maintained in postoperative chemotherapy patients, and this expression was induced by CDDP even in CDDP-resistant UCUB cells. Upon CDDP treatment, CEBPD activated ABCB1 and ABCC2. Furthermore, the EGFR/STAT3 pathway contributed to CDDP-induced CEBPD expression in UCUB cells. Gefitinib and S3I-201 treatment significantly reduced the expression of CEBPD and enhanced the sensitivity of CDDP-resistant UCUB cells to CDDP and paclitaxel. CONCLUSIONS: Our results revealed the risk of CEBPD activation in CDDP-resistant UCUB cells and suggested a therapeutic strategy for patients with UCUB or UCUB resisted to CDDP and paclitaxel by combination with either gefitinib or S3I-201.
    Date: 2017-01
    Relation: Clinical Cancer Research. 2017 Jan;23(2):503-513.
    Link to: http://dx.doi.org/10.1158/1078-0432.ccr-15-1169
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1078-0432&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000393880300019
    Appears in Collections:[其他] 期刊論文

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