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环氧化酶-2选择性抑制剂逆转MCF-7/ADR细胞多药耐药的实验研究 被引量:3

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摘要 目的研究环氧化酶-2(COX-2)选择性抑制剂Celecoxib对人乳腺癌细胞系MCF-7/ADR的多药耐药(MDR)逆转作用。方法采用四甲基偶氮唑蓝(MTT)法测定Celecoxib对MCF-7/ADR细胞的无毒剂量,并检测在此剂量下的耐药细胞逆转倍数;荧光分光光度法测定Celecoxib对细胞内阿霉素(ADM)荧光强度的影响。结果无毒剂量的Celecoxib(1×10-3μmol/L)可显著降低ADM对MCF-7/ADR的半数抑制浓度(IC50),逆转耐药倍数为1.91倍。Celecoxib能够提高MDR细胞内ADM荧光强度。结论Celecoxib具有逆转人乳腺癌MCF-7/ADR多药耐药性的作用,可能与增加MDR细胞内化疗药物聚集量有关。
出处 《江苏医药》 CAS CSCD 北大核心 2007年第11期1144-1145,共2页 Jiangsu Medical Journal
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