Journal of Genetics

, Volume 97, Issue 5, pp 1107–1117 | Cite as

MiR-27b promotes sheep skeletal muscle satellite cell proliferation by targeting myostatin gene

  • Wei Zhang
  • Shi-Yin WangEmail author
  • Shuang-Yi Deng
  • Li Gao
  • Li-Wei Yang
  • Xiao-Na Liu
  • Guo-Qing Shi
Research Article


To investigate the role of miR-27b in sheep skeletal muscle development, here we first cloned the sequence of sheep pre-miR-27b, then further investigated its expression pattern in sheep skeletal muscle in vivo, the relationship of miR-27b expression and sheep skeletal muscle satellite cell proliferation and differentiation in vitro, and then finally confirmed its target gene during this development process. MiR-27b sequence, especially its mature sequence, was conservative among different species. MiR-27b highly expressed in sheep skeletal muscle than other tissues. In skeletal muscle of Suffolk and Bashbay sheep, miR-27b was upregulated during foetal period and downregulated during postnatal period significantly (\(P{<}0.01\)), but it still kept a relatively higher expression level in skeletal muscle of postnatal Suffolk sheep than Bashbay. There is a potential target site of miR-27b on \(3^\prime \)-UTR of sheep myostatin (MSTN) mRNA, and the double luciferase reporter assay proved that miR-27b could successfully bind on this site. When sheep satellite cells were in the proliferation status, miR-27b was upregulated and MSTN was downregulated significantly (\(P{<}0.01\)). When miR-27b mimics was transfected into sheep satellite cells, the cell proliferation was promoted and the protein level of MSTN was significantly downregulated (\(P{<}0.01\)). Moreover, miR-27b regulated its target gene MSTN by translation repression at an early step, and followed by inducing mRNA degradation in sheep satellite cells. Based on these results, we confirm that miR-27b could promote sheep skeletal muscle satellite cell proliferation by targeting MSTN and suppressing its expression.


miR-27b myostatin gene sheep skeletal muscle satellite cell 



This study was funded by the Scientific Research Program of the Higher Education Institution of XinJiang (XJEDU2016I062) and the Scientific Research Project of Xinjiang Agricultural Professional Technological College (XJNZYKJ2016017). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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Copyright information

© Indian Academy of Sciences 2018

Authors and Affiliations

  • Wei Zhang
    • 1
    • 2
  • Shi-Yin Wang
    • 1
    Email author
  • Shuang-Yi Deng
    • 1
  • Li Gao
    • 1
  • Li-Wei Yang
    • 1
  • Xiao-Na Liu
    • 1
  • Guo-Qing Shi
    • 1
    • 2
  1. 1.Xinjiang Agricultural Professional Technological CollegeChangjiPeople’s Republic of China
  2. 2.State Key Laboratory for Sheep Genetic Improvement and Healthy ProductionXinjiang Academy of Agricultural and Reclamation SciencesShiheziPeople’s Republic of China

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