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热疗对增强阿霉素治疗神经胶质瘤敏感性研究 被引量:1

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摘要 目的探讨热疗对提高人神经胶质瘤细胞U251阿霉素敏感性的影响及相关机制。方法将U251细胞分为空白对照组、化疗组、热疗组及热疗+化疗组分别进行相应处理。48h后采用台盼蓝拒染法检测细胞存活率,使用SRB检测肿瘤细胞抑制率,使用流式细胞仪检测细胞凋亡率、细胞表面P-gp蛋白和Bcl-2蛋白的表达情况。以作用48h的IC 50值作为实验的工作浓度。结果化疗及热疗对U251细胞有明显抑制作用(P<0.01),热疗+化疗组与其他各组相比差异有统计学意义(P<0.01);热疗组、化疗组及热疗+化疗组的细胞凋亡率均较对照组显著升高,各组比较差异均有统计学意义(P<0.01);p-gp蛋白及Bcl-2蛋白表达均下降,各组比较差异有统计学意义(P<0.01)。结论热疗联合阿霉素化疗能增强对U251细胞的体外抑制作用,提高肿瘤细胞的凋亡率,通过联合热疗有效下调P-gp及Bcl-2蛋白的表达,提高U251细胞对阿霉素化疗的敏感性。
作者 王向军
出处 《中国实用神经疾病杂志》 2013年第10期43-45,共3页 Chinese Journal of Practical Nervous Diseases
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