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抑胶素对大鼠脑胶质瘤增殖细胞核抗原表达的影响

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摘要 目的研究抑胶素对大鼠脑胶质瘤增殖细胞核抗原的影响。方法采用鼠脑立体定向的方法建立大鼠脑胶质瘤动物模型并进行分组:抑胶素不同浓度实验组(Ⅰ:8μg/kg;Ⅱ:16μg/kg;Ⅲ:32μg/kg;Ⅳ:64μg/kg)、对照组,于治疗14d后计算瘤体变化,应用免疫组化方法检测增殖细胞核抗原(PCNA)的表达,观察瘤细胞增殖变化情况。结果抑胶素Ⅱ、Ⅲ、Ⅳ组对C6脑胶质瘤细胞有显著抑制作用,其瘤体积及抑瘤率与对照组比较有统计学差异(P<0.05,P<0.01);抑胶素能够使胶质瘤PCNA指数下降,Ⅱ、Ⅲ、Ⅳ组PCNA指数(%)与对照组相比较有统计学差异(P<0.05,P<0.01)。结论抑胶素能够抑制大鼠脑胶质瘤体内生长。其机制之一可能与胶质瘤内PCNA表达,使肿瘤细胞增殖水平下降有关。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2009年第20期2631-2632,共2页 Chinese Journal of Gerontology
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参考文献6

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