摘要
目的观察A549细胞转染esp1基因后细胞凋亡情况。方法将含esp1基因的IREEGFP质粒用FuGENE6脂质体转染到肺腺癌细胞A549,经G418筛选获得转染阳性的细胞系,检测转染细胞染色体数目及利用AnnexinV和TUNNEL试剂盒检测细胞凋亡的变化。结果A549细胞转入esp1基因后染色体异常分裂象减少,转染后细胞增殖减少,而去血清培养诱导的凋亡增加。结论esp1的上调表达不仅对于肿瘤的异常染色体分裂象以及肿瘤细胞的异常增殖有一定的抑制作用,且对A549细胞的凋亡有促进作用。
Objective To construct an expression vector containing esp1 in order to observe the effect of esp1 gene on the apoptosis of A549 ceils. Methods A conditional plasmid vector containing esp1 was constructed, and transfected into A549 ceils. The expression level of esp1 was detected by fluorescence microscopy, the chromosomes and the apoptosis, proliferation were detected. Results Transfection of IRE-EGFP-esp1 into A549 cells reduced improper chromosome segregation, cell proliferation and increased the apoptosis of A549 ceils. Conclusion Up-regulation of esp1 not only has inhibitory effects on the abnormal proliferation and chromatid separation of tumor ceils, but induces the apoptosis of A549 ceils.
出处
《第三军医大学学报》
CAS
CSCD
北大核心
2006年第8期828-830,共3页
Journal of Third Military Medical University