人肺腺癌紫杉醇耐药细胞株的建立及其特性研究

被引:12
作者
杨晓华 [1 ]
沙慧芳 [1 ]
冯久贤 [1 ]
孙强玲 [1 ]
储天晴 [2 ]
高志强 [2 ]
机构
[1] 上海市胸科医院胸部肿瘤研究所基础研究室
[2] 上海市胸科医院胸部肿瘤研究所肺内科
关键词
肺腺癌细胞A549; 多药耐药; 紫杉醇; 细胞株;
D O I
暂无
中图分类号
R734.2 [肺肿瘤];
学科分类号
100117 [系统生物医学];
摘要
目的建立耐紫杉醇的人肺腺癌A549(A549/Taxol)细胞株,并初步研究其生物学特性。方法应用抗肿瘤药紫杉醇以体外浓度递增和短时作用法筛选A549细胞株。用四甲基偶氮唑盐(MTT)法检测细胞的耐药指数及对多种抗癌药物的敏感性;免疫细胞化学法检测P-糖蛋白(P170)、β-tubulin等耐药相关蛋白的表达情况。结果A549/Taxol细胞的紫杉醇半数抑制浓度(IC50)是亲代A549细胞的512.8倍,群体倍增时间是亲代细胞的1.28倍,对紫杉醇、丝裂霉素、长春新碱、诺维本的耐药指数依次为512.8、66.48、4.88和2.06;而对顺铂、健择无交叉耐药。A549/Taxol细胞高表达P170,β-tubulin表达水平高于其亲代细胞系。结论成功建立了一株耐紫杉醇的A549/Taxol,并呈多药耐药特性。
引用
收藏
页码:34 / 37
页数:4
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