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Article

MiR-34b-5p Mediates the Proliferation and Differentiation of Myoblasts by Targeting IGFBP2

1
Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
2
National-Local Joint Engineering Research Center for Livestock Breeding, Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Cells 2019, 8(4), 360; https://doi.org/10.3390/cells8040360
Received: 21 March 2019 / Revised: 11 April 2019 / Accepted: 14 April 2019 / Published: 17 April 2019
(This article belongs to the Collection Regulatory Functions of microRNAs)
As key post-transcriptional regulators, microRNAs (miRNAs) play an indispensable role in skeletal muscle development. Our previous study suggested that miR-34b-5p and IGFBP2 could have a potential role in skeletal muscle growth. Our goal in this study is to explore the function and regulatory mechanism of miR-34b-5p and IGFBP2 in myogenesis. In this study, the dual-luciferase reporter assay and Western blot analysis showed that IGFBP2 is a direct target of miR-34b-5p. Flow cytometric analysis and EdU assay showed that miR-34b-5p could repress the cell cycle progression of myoblasts, and miR-34b-5p could promote the formation of myotubes by promoting the expression of MyHC. On the contrary, the overexpression of IGFBP2 significantly facilitated the proliferation of myoblasts and hampered the formation of myotubes. Together, our results indicate that miR-34b-5p could mediate the proliferation and differentiation of myoblasts by targeting IGFBP2. View Full-Text
Keywords: miR-34b-5p; IGFBP2; skeletal muscle; myoblast; myogenesis miR-34b-5p; IGFBP2; skeletal muscle; myoblast; myogenesis
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MDPI and ACS Style

Wang, Z.; Zhang, X.; Li, Z.; Abdalla, B.A.; Chen, Y.; Nie, Q. MiR-34b-5p Mediates the Proliferation and Differentiation of Myoblasts by Targeting IGFBP2. Cells 2019, 8, 360. https://doi.org/10.3390/cells8040360

AMA Style

Wang Z, Zhang X, Li Z, Abdalla BA, Chen Y, Nie Q. MiR-34b-5p Mediates the Proliferation and Differentiation of Myoblasts by Targeting IGFBP2. Cells. 2019; 8(4):360. https://doi.org/10.3390/cells8040360

Chicago/Turabian Style

Wang, Zhijun, Xiaocui Zhang, Zhenhui Li, Bahareldin Ali Abdalla, Yangfeng Chen, and Qinghua Nie. 2019. "MiR-34b-5p Mediates the Proliferation and Differentiation of Myoblasts by Targeting IGFBP2" Cells 8, no. 4: 360. https://doi.org/10.3390/cells8040360

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