马维娜 孟拥军
上海市嘉定区中心医院药剂科,上海 201800
吉西他滨、顺铂及香菇多糖对Lew is肺癌细胞株抑制作用的实验研究
马维娜孟拥军
上海市嘉定区中心医院药剂科,上海201800
目的 研究吉西他滨、顺铂、香菇多糖三种药物单独使用及联合使用对Lewis肺癌细胞株的增殖抑制作用。方法 分别使用不同浓度的吉西他滨(0.5、1、2、5、8、10、12μg/mL)、顺铂(1、2、4、8、10、16、20μg/mL)、香菇多糖(50、100、150、200、250、300、400μg/mL)单独及联合处理Lewis肺癌细胞株,24 h后MTT法测定细胞生长抑制作用,应用金氏公式进行联合用药分析。结果 吉西他滨、顺铂、香菇多糖对Lewis肺癌细胞均有不同程度的增殖抑制作用,两种或三种药物联用后对Lewis肺癌细胞株的抑制率显著增加,其中8μg/mL的吉西他滨与10μg/mL的顺铂和250μg/mL香菇多糖联用时,其抑制率近似于10μg/mL的吉西他滨和16μg/mL的顺铂两药联用;而当香菇多糖的浓度增加至200μg/mL时,三药联用的抑制率明显高于吉西他滨和顺铂两组药物联用(P<0.05)。结论 香菇多糖可增强吉西他滨和顺铂对Lewis肺癌细胞的增殖抑制作用,表现为协同效应,并且联用后能够减少常规化疗药物的用量。
吉西他滨;顺铂;香菇多糖;Lew is肺癌细胞株;MTT法
[Abstract]Objective To investigate the anti-proliferative effect of single use of Gemcitabine,Cisplatin,Lentinan and combination of them on Lewis lung cancer cell lines.Methods Lewis lung cancer lineswere treated with different concentrations of Gemcitabine(0.5,1,2,5,8,10,12μg/mL),Cisplatin(1,2,4,8,10,16,20μg/mL),Lentinan(50,100,150,200,250,300,400μg/mL)and combination of them separately.After 24 hours,the inhibitory effects weremeasured with MTT assay and Jin formula was applied to analyze the combination effect of the drugs.Results Gemcitabine,Cisplatin and Lentinan all showed the anti-proliferative effects on Lewis cancer cell lines in varying degree.The inhibitory rates of any two or three drugs of them were significantly higher,among which,the inhibitory rate of combination use of 8μg/mL Gemcitabine,10μg/mL Cisplatin and 250μg/mL Lentinan was close to that of 10μg/mL Gemcitabine and 16μg/mL Cisplatin.When the concentration of Lentinan increased to 200μg/mL,the suppression rate of the tumor in three-drug regimen group was higher than that in the Gemcitabine combined with Cisplatin group(P<0.05).Conclusion Gemcitabine,Cisplatin shows the anti-proliferative effect on Lewis lung cancer cell lines distinctly,and the drugs have better cooperative effect combined with Lentinan,furthermore,the combined use can reduce conventional chemotherapy doses.
[Key words]Gemcitabine;Cisplatin;Lentinan;Lewis lung cancer cell line;MTT assay
肺癌是导致人类癌性死亡的首位疾病,全球每年因肺癌死亡的人数超过100万人,其中80%~90%的患者为非小细胞肺癌[1]。在肿瘤化疗过程中,化疗所产生的不良反应以及肿瘤细胞的耐药性经常限制其疗效和应用,采用联合用药的方式可以使药物对肿瘤细胞发挥最大限度的杀伤,近年来常采用中西药联用的方法[2]。吉西他滨+顺铂(GP疗法)治疗非小细胞肺癌是目前临床上常见的一种化疗方案[3]。……