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Characterization of the Methylation Status of Pax7 and Myogenic Regulator Factors in Cell Myogenic Differentiation

文献类型: 外文期刊

作者: Chao, Zhe 1 ; Zheng, Xin-Li 1 ; Sun, Rui-Ping 1 ; Liu, Hai-Long 1 ; Huang, Li-Li 1 ; Cao, Zong-Xi 1 ; Deng, Chang-Yan; 1 ;

作者机构: 1.Hainan Acad Agr Sci, Inst Anim Sci & Vet, Haikou 571100, Peoples R China

2.Huazhong Agr Univ, Coll Anim Sci, Wuhan 430070, Peoples R China

关键词: Pax7;Myogenic Regulatory Factors;C2C12;DNA Methylation;CpG Islands

期刊名称:ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES ( 影响因子:2.509; 五年影响因子:2.604 )

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收录情况: SCI

摘要: Epigenetic processes in the development of skeletal muscle have been appreciated for over a decade. DNA methylation is a major epigenetic modification important for regulating gene expression and suppressing spurious transcription. Up to now, the importance of epigenetic marks in the regulation of Pax7 and myogenic regulatory factors (MRFs) expression is far less explored. In the present study, semi-quantitative the real-time polymerase chain reaction (RT-PCR) analyses showed MyoD and Myf5 were expressed in activated and quiescent C2C12 cells. MyoG was expressed in a later stage of myogenesis. Pax7 was weakly expressed in differentiated C2C12 cells. To further understand the regulation of expression of these genes, the DNA methylation status of Pax7, MyoD, and Myf5 was determined by bisulfite sequencing PCR. During the C2C12 myoblasts fusion process, the changes of promoter and exon 1 methylation of Pax7, MyoD, and Myf5 genes were observed. In addition, an inverse relationship of low methylation and high expression was found. These results suggest that DNA methylation may be an important mechanism regulating Pax7 and MRFs transcription in cell myogenic differentiation.

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