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Reversal of multidrug resistance in drug-resistant cell line EAC/ADR by cepharanthine hydrochloride and its mechanism
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- Author:
- No author available
- Journal Title:
- ACTA PHARMACEUTICA SINICA
- Issue:
- 3
- DOI:
- 10.3321/j.issn:0513-4870.2005.03.003
- Key Word:
- 盐酸千金藤素;艾氏腹水癌;多药耐药性;核因子κB;基因表达;细胞凋亡
Abstract： 目的研究盐酸千金藤素对艾氏腹水癌耐药细胞株EAC/ADR多药耐药性的逆转作用及其与核因子κB(NF-κB)的关系,探讨其作用机制.方法 MTT法、小鼠移植瘤模型实验观察盐酸千金藤素体外和体内逆转细胞多药耐药性的作用;Dot-ELISA法检测细胞核NF-κB水平及药物作用后的变化.结果盐酸千金藤素体外能逆转EAC/ADR细胞的耐药性,逆转倍数为13倍;体内能延长荷瘤小鼠的生存时间,生命延长率为75.37%;并能降低EAC/ADR细胞中NF-κB的持续性活性及化疗药物对其的激活.结论盐酸千金藤素具有逆转多药耐药性的作用,其机制可能与抑制NF-κB的活性有关.
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