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APPLICATION OF MEDIAN-EFFECT IN QUANTITATIVE ANALYSIS OF ANTITUMOR DRUGS IN VITRO
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作者 何松 沈薇 沈鼎明 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2005年第2期140-144,共5页
Objective: To analyze quantitatively the synergistic and antagonistic effects of combined oxymatrine (OMT) and 5-fluorouracil (5-GU) on a cell line of human liver cancer (HepG2) with median-effect principle in vitro. ... Objective: To analyze quantitatively the synergistic and antagonistic effects of combined oxymatrine (OMT) and 5-fluorouracil (5-GU) on a cell line of human liver cancer (HepG2) with median-effect principle in vitro. Methods: The median-effect principle and MTT method were used in the quantitative analysis of effects of the two drugs. Results: Cytotoxic activity of the individual drugs enhanced as drug concentration increased. As fa=0.41, a CI equal to 1 indicated additivity; fa<0.41, a CI less than 1 indicated synergy; and fa>0.41, a CI greater than 1 indicated antagonism. The sequence of administration did not influence the cytotoxic activity of the combined antitumor drugs. The ratio of drug concentration was a factor that can influence the killing effect. Conclusion: The combined drugs interaction (CI<1) was synergistic at lower concentration and antagonistic at higher concentration. The ratio of drug concentration is a factor that can influence the killing effect. 展开更多
关键词 median-effect principle Quantitative analysis in vitro Oxymatrine (OMT) 5-fluorouracil combination index (ci)
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尼美舒利联合5-Fu对胃癌细胞BGC-823的抗癌作用研究 被引量:1
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作者 向廷秀 王丕龙 +2 位作者 姜政 高青 张霞 《激光杂志》 CAS CSCD 北大核心 2003年第6期95-96,共2页
目的 :研究尼美舒利 (Nimesulide)合用 5 -Fluorouracil(5 -FU)对人胃癌细胞株BGC -82 3的生长抑制作用 ,判断联合用药的效果。方法 :采用MTT法、中效原理等测定药物的体外杀伤作用 ,进行联合用药分析。结果 :尼美舒利合用 5 -FU能显著... 目的 :研究尼美舒利 (Nimesulide)合用 5 -Fluorouracil(5 -FU)对人胃癌细胞株BGC -82 3的生长抑制作用 ,判断联合用药的效果。方法 :采用MTT法、中效原理等测定药物的体外杀伤作用 ,进行联合用药分析。结果 :尼美舒利合用 5 -FU能显著抑制BGC -82 3的生长 ,当抑制率为 10 -95 %时 ,两药合用时合用指数 (CI) <1,为协同作用 ,使用药浓度减少 1-10倍。结论 :尼美舒利联合 5 -FU能显著增加单用其中一种药物对人胃癌细胞株BGC -82 3的抑制作用 ,两药联合应用时具有较好的协同作用。 展开更多
关键词 尼美舒利 5-FU 胃癌 细胞株BCC-823 抗癌作用 中效原理 合用指数
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