半枝莲多糖对肝癌细胞SMMC7721生长抑制及机制的研究

Journal of Guangzhou University of Traditional Chinese Medicine(2012)

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Abstract
【目的】研究半枝莲多糖(Scutellaria barbata polysaccharides,SBP)对肝癌细胞SMMC7721生长的抑制及相关机制。【方法】将不同浓度SBP作用于SMMC7721肝癌细胞,采用四甲基偶氮唑盐(MTT)法检测半枝莲多糖对肝癌细胞SMMC7721生长增殖的抑制作用;实时荧光定量聚合酶链反应(Real-time PCR)检测细胞周期蛋白依赖性激酶(CDK2)与转录因子E2F1 mRNA表达;蛋白印迹法(Western blot)检测CDK2与E2F1蛋白表达。【结果】SBP对肝癌细胞SMMC7721具有明显的生长抑制作用,其中10、2.5μg/mL SBP组作用显著,均可使CDK2与E2F1 mRNA和蛋白表达下调。【结论】SBP对肝癌细胞SMMC7721具有增殖抑制作用,其机制可能与CDK2和E2F1表达下降有关。
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Key words
CELL CULTURE,PROLIFERATION INHIBITION,SCUTELLARIA BARBATA POLYSACCHARIDES/pharmacology,GENE EXPRESSION REGULATION,LIVER CANCER/TCD therapy
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