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题目:: The association of CCND1 overexpression and cisplatin resistance in testicular germ cell tumors and other cancers.
作者:: Noel(Elodie E),Yeste-Velasco(Marc),Mao(Xueying),Perry(Jackie),Kudahetti(Sakunthala C),Li(Ningfeng F),Sharp(Swee),Chaplin(Tracy),Xue(Liyan),McIntyre(Alan),Shan(Ling),Powles(Thomas),Oliver(R Tim D),Young(Bryan D),Shipley(Janet),Berney(Daniel M),Joel(Simon P),Lu(Yong-Jie)
状态:: 发布时间2010-06-03 , 更新时间 2016-10-19
期刊:: Am J Pathol
摘要:: Development of chemoresistance limits the clinical efficiency of platinum-based therapy. Although many resistance mechanisms have been demonstrated, genetic/molecular alterations responsible for drug resistance in the majority of clinical cases have not been identified. We analyzed three pairs of testicular germ cell tumor cell lines using Affymetrix expression microarrays and revealed a limited number of differentially expressed genes across the cell lines when comparing the parental and resistant cells. Among them, CCND1 was the most significantly differentially expressed gene. Analysis of testicular germ cell tumor clinical samples by quantitative reverse transcription PCR analysis revealed that overall expression of CCND1 was significantly higher in resistant cases compared with sensitive samples (P < 0.0001). We also found that CCND1 was dramatically overexpressed both in induced and intrinsically resistant samples of ovarian and prostate cancer. Finally combined CCND1 knockdown using small-interfering RNA and cisplatin treatment inhibited cell growth in vitro significantly more effectively than any of these single treatments. Therefore, deregulation of CCND1 may be a major cause of cisplatin resistance in testicular germ cell tumors and may also be implicated in ovarian and prostate cancers. CCND1 could be potentially used as a marker for treatment stratification and as a molecular target to improve the treatment of platinum-resistant tumors.
语言:: eng
DOI:

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