Regulation of myo-miR-24-3p on the Myogenesis and Fiber Type Transformation of Skeletal Muscle

文献类型： 外文期刊

第一作者： Fan, Danyang

作者： Fan, Danyang;Liu, Yanwen;Yu, Mei;Tang, Zhonglin;Fan, Danyang;Liu, Yanwen;Yu, Mei;Tang, Zhonglin;Fan, Danyang;Liu, Yanwen;Yan, Chao;Li, Fanqinyu;Wang, Shilong;Tang, Zhonglin;Fan, Danyang;Yao, Yilong;Liu, Yanwen;Yan, Chao;Li, Fanqinyu;Wang, Shilong;Tang, Zhonglin;Yan, Chao;Wang, Shilong;Tang, Zhonglin;Xie, Bingkun

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关键词： porcine; miR-24-3p; skeletal muscle fiber transformation; regeneration

期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN：

年卷期： 2024 年 15 卷 3 期

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收录情况： SCI

摘要： Skeletal muscle plays critical roles in providing a protein source and contributing to meat production. It is well known that microRNAs (miRNAs) exert important effects on various biological processes in muscle, including cell fate determination, muscle fiber morphology, and structure development. However, the role of miRNA in skeletal muscle development remains incompletely understood. In this study, we observed a critical miRNA, miR-24-3p, which exhibited higher expression levels in Tongcheng (obese-type) pigs compared to Landrace (lean-type) pigs. Furthermore, we found that miR-24-3p was highly expressed in the dorsal muscle of pigs and the quadriceps muscle of mice. Functionally, miR-24-3p was found to inhibit proliferation and promote differentiation in muscle cells. Additionally, miR-24-3p was shown to facilitate the conversion of slow muscle fibers to fast muscle fibers and influence the expression of GLUT4, a glucose transporter. Moreover, in a mouse model of skeletal muscle injury, we demonstrated that overexpression of miR-24-3p promoted rapid myogenesis and contributed to skeletal muscle regeneration. Furthermore, miR-24-3p was found to regulate the expression of target genes, including Nek4, Pim1, Nlk, Pskh1, and Mapk14. Collectively, our findings provide evidence that miR-24-3p plays a regulatory role in myogenesis and fiber type conversion. These findings contribute to our understanding of human muscle health and have implications for improving meat production traits in livestock.

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