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山梨酸对C2C12细胞增殖、IGF-1分泌和相关基因表达的影响

DOI: 10.7671/j.issn.1001-411X.2012.04.020, PP. 529-534

Keywords: 山梨酸,C2C12,增殖,IGF-1分泌,基因表达

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Abstract:

为研究山梨酸对小鼠骨骼肌成肌细胞(C2C12)增殖、IGF-1分泌、GH/IGF系统和糖脂代谢相关基因表达的影响,试验通过培养基中添加不同浓度的山梨酸(0、0.1、1.0、10.0和100.0μmol/L)处理C2C12细胞,采用MTT法检测细胞增殖,RIA法检测细胞IGF-1分泌量,qPCR法检测相关基因mRNA的表达水平.结果表明:1)10.0μmol/L山梨酸显著促进体积分数为10%胎牛血清(1和2d)和无血清(4和5d)培养的C2C12细胞增殖(P<0.05);2)0.1、1.0和100.0μmol/L山梨酸均显著抑制无血清培养的C2C12细胞IGF-1的分泌(P<0.05);3)1.0μmol/L山梨酸显著上调无血清培养的C2C12细胞IGF-1R、GHR和CPT1b的mRNA表达(P<0.05),对IGFBP3(P=0.09)、PDK4(P=0.10)和PGC1α(P=0.10)的mRNA表达量也有提高趋势.提示山梨酸可促进C2C12细胞的增殖和GH/IGF系统及糖脂代谢相关基因mRNA表达,但对IGF-1的分泌具有抑制作用.

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