龚海洋;蔡郑东;郑龙坡;李国东;华莹奇;

• 1:第二军医大学附属长海医院骨科

摘要(Abstract)：

[目的]本试验主要观察第3代二膦酸盐类药物唑来膦酸(zoledronic acid,ZOL)在体外对人骨肉瘤细胞株MG63生长的影响,进一步研究唑来膦酸与甲氨蝶呤(methotrexate,MTX)合用对MG63细胞的生长抑制是否具有协同作用。[方法]采用MTT法分别检测不同剂量的唑来膦酸、甲氨蝶呤对人骨肉瘤细胞株MG63生长作用,检测唑来膦酸联合甲氨蝶呤对人骨肉瘤细胞株MG63的增殖抑制。[结果]唑来膦酸对MG63细胞的抑制效应与药物剂量及作用时间均成正比。单药唑来膦酸组剂量为1、10μmol/L时,MG63细胞凋亡率分别为9.91%、48.95%,单用甲氨蝶呤(1、10、100mg/L)时细胞凋亡率为37.68%、45.93%、52.418%,当唑来膦酸(10μmol/L)联合甲氨蝶呤(1、10、100mg/L)时MG63细胞的凋亡率分别为51.96%、66.77%、69.23%,联合用药组与单药组相比差异有显著性(P<0.01)。唑来膦酸作用MG63细胞72h的IC50值为9.39μmol/L。[结论]唑来膦酸对人骨肉瘤细胞株MG63有生长抑制作用,呈时间、剂量依赖性效应,唑来膦酸与甲氨蝶呤有协同作用。

关键词(KeyWords)： 骨肉瘤;MG63细胞系;唑来膦酸;甲氨蝶呤;协同作用

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 龚海洋;蔡郑东;郑龙坡;李国东;华莹奇;

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参考文献(References)：

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