高温诱导颊癌细胞凋亡过程中Bax基因表达的动态变化  

Relationship between the Expression of Bax and Apoptosis Induced by Hyperthermia in BcaCD885 Cells

作　　者：何永文[1] 毛祖彝[2] 边莉[1] 梁新华 高志 左晖 曹选平 

机构地区：[1]昆明医学院第一附属医院,650032 [2]四川大学华西口腔医学院

出　　处：《华西口腔医学杂志》2001年第1期14-16,共3页West China Journal of Stomatology

基　　金：云南省自然科学基金资助项目! (编号 1999C0 0 0 7R)

摘　　要：目的 :探讨Bax基因在热诱导BcaCD885细胞凋亡过程中的作用。方法 :水浴加温诱导BcaCD885细胞产生凋亡。通过FCM DNA、FCM 抗体检测及RT PCR技术 ,观测热诱导颊癌细胞凋亡过程中Bax基因蛋白及mRNA表达的动态变化。结果 :凋亡率与Bax蛋白表达水平存在正相关关系 ;加热后 ,细胞BaxmRNA相对量明显升高。结论 :高温作为一种外来刺激信号通过上调Bax基因的表达 ,诱导BcaCD885细胞凋亡的发生。Objective: This study aimed to investigate the role of Bax gene in apoptosis induced by hyperthermia in BcaCD885 cells. Methods: After inducing apoptosis through hyperthermia, the expression of Bax protein and mRNA were examined with FCM antibody analysis and RT PCR technique respectively. Results: Up regulation of Bax protein was noted after hyperthermia. The correlation coefficient r between the apoptotic rate and the expression Bax protein was 0.9240. The expression of Bax mRNA was also raised after hyperthermia. Conclusion: Hyperthermia acting as an external signal may up regulates expression of Bax gene and then induces apoptosis in BcaCD885 cells. \;

关 键 词：高温 BCACD885细胞 细胞凋亡 BAX基因 颊癌 

分 类 号：R739.8[医药卫生—肿瘤] R730.231.2[医药卫生—临床医学]