山梨酸对C2C12细胞增殖、IGF-1分泌和相关基因表达的影响

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....

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Published in华南农业大学学报 Vol. 33; no. 4; pp. 529 - 534
Main Author 方心灵 王海峰 束刚 王松波 朱晓彤 王丽娜 高萍 江青艳
Format Journal Article
LanguageChinese
Published 华南农业大学动物科学学院,广东广州,510642 2012
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Summary: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.
Bibliography:The purpose of this experiment was to explore the effects of sorbic acid (SA) on proliferation, IGF-1 secretion, GH/IGF system and glucose and lipid metabolism-related genes mRNA expression in C2C12 cells. C2C12 cells were exposed to different doses of SA(0, 0. 1, 1.0, 10. 0 and 100. 0 μmol/L) to measure cell proliferation by MTF assay, IGF-1 secretion by RIA assay and transcript levels by qPCR as- say. Results indicated that : 1 ) SA ( 10. 0 μmol/L) significantly promoted ( P 〈 0. 05 ) proliferation of cell cultured with 10% fetal bovine serum( 1 and 2 d) or without serum(4 and 5 d). 2) IGF-1 secretion was significantly suppressed ( P 〈 0. 05 ) by 0. 1, 1.0 or 100. 0 μmol/L SA in serum-free cultured C2C12 cells. 3) Expressions of IGF-1 R, GHR and CPTlb mRNA were significantly up-regulated in serum-free cultured C2C12 cells treated with 1.0μmol/L SA. The increasing trend of IGFBP3 (P = 0. 09) , PDK4 (P =0. 10) and PGC1α(P =0. 10) transcript levels were also observed in serum-free cultured C2C12 cells by 1.0 μ
ISSN:1001-411X