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他莫昔芬诱导C6胶质瘤细胞凋亡及其作用机制
Authors
李朝红
武慧姣
谢富康
黄锦桃
Publication date
1 January 2018
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
【目的】探讨他莫昔芬(TAM)对C6胶质瘤细胞凋亡的影响及其可能的作用机制。【方法】①TAM经不 同浓度、不同时间处理C6胶质瘤细胞后,用台盼蓝染色法检测细胞死亡现象,DAPI组化染色观察凋亡细胞核形 态,DNA阶梯法和FACS检测细胞凋亡,Westernblot法分析PKCα磷酸化水平。②PKCα特异性抑制剂Go6976与 TAM联合处理C6胶质瘤细胞后,DNA阶梯法和FACS检测C6胶质瘤细胞凋亡。【结果】①TAM能诱导C6胶质瘤 细胞死亡,且与TAM浓度、TAM处理时间呈正相关;TAM组可见典型的细胞凋亡的形态学变化(如核固缩)和明显 的DNA梯度条带; C6胶质瘤细胞凋亡率和PKCα磷酸化水平具有TAM浓度依赖性和时间依赖性。②Go6976与 TAM联合处理C6胶质瘤细胞后,可进一步促进TAM诱导的C6胶质瘤细胞凋亡。【结论】TAM能诱导C6胶质瘤细 胞凋亡,且PKCα参与介导TAM诱导的C6胶质瘤细胞凋亡。该研究可为临床神经胶质瘤的治疗提供实验依据
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Last time updated on 15/10/2024