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西乐葆对不同受体状态乳腺癌细胞株的作用研究 被引量:3

Effect of Celecoxib on Breast Cancer Cell Lines in Different Receptor Status
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摘要 [目的]探讨选择性COX-2抑制剂西乐葆对受体状态不同的MDA-MB-231和MCF-7乳腺癌细胞株的抑制作用。[方法]取对数生长期ER(-)的MDA-MB-231细胞和ER(+)的MCF-7细胞,加入不同浓度的COX-2抑制剂西乐葆共同培养,以MTT法检测两种细胞的存活率;用流式细胞仪检测两种细胞的细胞周期变化;用Annexin-V-FITC双标法检测各自的细胞凋亡。[结果]西乐葆对MDA-MB-231和MCF-7细胞均有明显的生长抑制作用,且对前者的作用比后者显著,60μmol/L西乐葆作用72h后,对MDA-MB-231细胞的生长抑制率为81.70%;对MCF-7细胞的生长抑制率为70.8%(P<0.05)。60μmol/L西乐葆作用48h后,MCF-7细胞G0/G1期比例为82.72%±1.25%,MDA-MB-231细胞G0/G1期比例为43.58%±0.58%。60μmol/L西乐葆作用72h后,MCF-7细胞的凋亡率为13.25%,而MDA-MB-231细胞为70.10%(P<0.01)。[结论]选择性COX-2抑制剂西乐葆对ER(+)或ER(-)的乳腺癌细胞均具生长抑制作用,但对ER(-)的乳腺癌细胞的抑制更为显著。西乐葆均能明显抑制两种细胞的增殖,可使ER(+)的细胞周期停止在G0/G1期;对ER(-)的细胞则以促进凋亡为主。
出处 《肿瘤学杂志》 CAS 2007年第6期460-463,共4页 Journal of Chinese Oncology
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