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MiR-27b Promotes Muscle Development by Inhibiting MDFI Expression

文献类型： 外文期刊

作者： Hou, Lianjie 1 ; Xu, Jian 1 ; Jiao, Yiren 1 ; Li, Huaqin 1 ; Pan, Zhicheng 1 ; Duan, Junli 1 ; Gu, Ting 2 ; Hu, Chingyuan;

作者机构： 1.South China Agr Univ, Natl Engn Res Ctr Breeding Swine Ind, Guangdong Prov Key Lab Agroanim Genom & Mol Breed, Coll Anim Sci, Guangzhou, Guangdong, Peoples R China

2.South China Agr Univ, Natl Engn Re

关键词： MiR-27b; MDFI; Skeletal muscle; Porcine; Satellite cells

期刊名称：CELLULAR PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：5.5； 五年影响因子：4.354 ）

ISSN： 1015-8987

年卷期： 2018 年 46 卷 6 期

页码：

收录情况： SCI

摘要： Background/Aims: Skeletal muscle plays an essential role in the body movement. However, injuries to the skeletal muscle are common. Lifelong maintenance of skeletal muscle function largely depends on preserving the regenerative capacity of muscle. Muscle satellite cells proliferation, differentiation, and myoblast fusion play an important role in muscle regeneration after injury. Therefore, understanding of the mechanisms associated with muscle development during muscle regeneration is essential for devising the alternative treatments for muscle injury in the future. Methods: Edu staining, qRT-PCR and western blot were used to evaluate the miR-27b effects on pig muscle satellite cells (PSCs) proliferation and differentiation in vitro. Then, we used bioinformatics analysis and dual-luciferase reporter assay to predict and confirm the miR-27b target gene. Finally, we elucidate the target gene function on muscle development in vitro and in vivo through Edu staining, qRT-PCR, western blot, H&E staining and morphological observation. Result: miR-27b inhibits PSCs proliferation and promotes PSCs differentiation. And the miR-27b target gene, MDFI, promotes PSCs proliferation and inhibits PSCs differentiation in vitro. Furthermore, interfering MDFI expression promotes mice muscle regeneration after injury. Conclusion: our results conclude that miR-27b promotes PSCs myogenesis by targeting MDFI. These results expand our understanding of muscle development mechanism in which miRNAs and genes work collaboratively in regulating skeletal muscle development. Furthermore, this finding has implications for obtaining the alternative treatments for patients with the muscle injury. (C) 2018 The Author(s) Published by S. Karger AG, Basel

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