Role of microRNA-27a in myoblast differentiation

被引:29
作者
Chen, Xiaoling [1 ]
Huang, Zhiqing [1 ]
Chen, Daiwen [1 ]
Yang, Ting [1 ]
Liu, Guangmang [1 ]
机构
[1] Sichuan Agr Univ, Inst Anim Nutr, China Minist Educ, Key Lab Anim Dis Resistance Nutr, Chengdu 611130, Sichuan, Peoples R China
基金
中国国家自然科学基金;
关键词
microRNA; miR-27a; myoblast differentiation; myostatin; GROWTH-FACTOR-BETA; SKELETAL-MUSCLE; MYOSTATIN EXPRESSION; CELL-PROLIFERATION; MYOGENESIS; GENE; TARGETS; MYOD; TRANSCRIPTION; VERTEBRATES;
D O I
10.1002/cbin.10192
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
MicroRNAs (miRNAs) are a class of endogenous non-coding RNAs that are critically involved in roles in various aspects of skeletal myogenesis. microRNA miR-27a promotes myoblast proliferation by targeting myostatin, a critical inhibitor of skeletal muscle development, but its mode of action in myoblast differentiation remains unclear. We have found that expression of miR-27a and myostatin were upregulated and downregulated, respectively, during myoblast differentiation. Overexpression of miR-27a increased the number of myosin heavy chain (MHC)-positive cells and upregulated mRNA and protein of MyoD and myogenin. These findings indicate that miR-27a plays a role in enhancing myoblast differentiation.
引用
收藏
页码:266 / 271
页数:6
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