死亡受体5诱导Jurkat细胞凋亡的作用论文.doc死亡受体5诱导Jurkat细胞凋亡的作用论文 【关键词】细胞凋亡 Role of DR5 in TRAIL induced apoptosis of Jurkat cells 【Abstract】 AIM: To study the role of DR5 in TRAIL apoptotic signal transduction in Jurkat cells. METHODS: cDNA containing fulllength extracellular domain of human DR5 ologous rebination secreted high levels of sDR5. BALB/c mice munized Ab. The binding of antiDR5 mAb easured for surface expression of TRAIL receptor by floetric analysis. Jurkat cells ined by floetry. The rates of TRAILinduced apoptosis and antiDR5 mAb blocking on Jurkat cells etry Ab. The average percentage of blocking Ab can specifically bind to DR5 and DR5 is expressed at high levels on Jurkat cells. DR5 plays a very key role in TRAIL induced apoptosis in Jurkat cells. DR5 expression is important for the induction of apoptosis by TRAIL. 【Keyonoclonal 【摘要】目的: 探讨DR5在TRAIL诱导Jurkat细胞凋亡中的作用. 方法: 用含人全长DR5细胞外全长结构域重组DR5免疫BALB/c小鼠,制备抗DR5 mAb. 将96孔U型细胞培养板加1×105/孔Jurkat细胞和5 mg/L抗DR5 mAb,采用TRAIL试剂盒检测细胞凋亡率. 结果: 抗DR5 mAb与Jurkat细胞表面的DR5作用后,TRAIL对Jurkat细胞的杀伤功能几乎被抗DR5 mAb完全阻断,%. 结论: DR5在TRAL诱导的Jurkat细胞凋亡中起关键作用. 【关键词】 Jurkat细胞;TRAIL;细胞凋亡;DR5;抗体,单克隆 0引言 肿瘤坏死因子相关凋亡诱导配体(tumor necrosis factor related apoptosis inducing ligand, TRAIL)是近几年新发现的TNF 超家族成员,TRAIL与其受体结合可以诱导大多数肿瘤细胞凋亡而对大多数正常细胞无影响. 已经发现,,并应用流式细胞仪检测TRAIL诱导Jurkat细胞凋亡情况,以探讨DR5在TRAIL诱导肿瘤细胞凋亡中的作用. 1材料和方法
