维拉帕米与加温对MCF-7/Adm细胞株多药耐药的实验研究
The reversal effect of heating combined with Verapamil on multidrug-resistant breast cancer cell line MCF-7/Adm
作者:鄢希;侯梅;李胜富;刘元元;
Author:
收稿日期: 年卷(期)页码:2006,(02):-124-126
期刊名称:华西药学杂志
Journal Name:WEST CHINA JOURNAL OF PHARMACEUTICAL SCIENCES
关键字:多药耐药;加温;维拉帕米;乳腺癌;细胞敏感株;阿霉素
Key words:
基金项目:
中文摘要
目的观察维拉帕米(Vrp)与加温对人乳腺癌细胞敏感株和耐药株耐药的逆转作用和协同作用。方法以人乳腺癌细胞株MCF-7为对照,以人乳腺癌耐药细胞株MCF-7/Adm为研究对象,观察阿霉素(Adm)浓度为3μg.ml-1、37℃~43℃条件下,分别加入不同浓度的Vrp(0~5μmol.L-1)时,MCF-7与MCF-7/Adm亚细胞内阿霉素的荧光强度、温度、浓度分别与荧光强度间的变化趋势。结果MCF-7/Adm细胞对于阿霉素的敏感性明显低于MCF-7细胞,MCF-7组的亚细胞内阿霉素荧光强度较高,细胞凋亡率亦高;MCF-7/Adm随温度和Vrp浓度的增加,Adm荧光强度向胞核增加,细胞凋亡率也增加。结论加温联合耐药逆转剂Vrp能协同增强Vrp对MCF-7/Adm的耐药逆转作用。
参考文献
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