MiR-16-5p targets SESN1 to regulate the p53 signaling pathway, affecting myoblast proliferation and apoptosis, and is involved in myoblast differentiation

文献类型： 外文期刊

第一作者： Cai, Bolin

作者： Cai, Bolin;Ma, Manting;Chen, Biao;Li, Zhenhui;Abdalla, Bahareldin Ali;Nie, Qinghua;Zhang, Xiquan;Cai, Bolin;Ma, Manting;Chen, Biao;Li, Zhenhui;Abdalla, Bahareldin Ali;Nie, Qinghua;Zhang, Xiquan;Cai, Bolin;Ma, Manting;Chen, Biao;Li, Zhenhui;Abdalla, Bahareldin Ali;Nie, Qinghua;Zhang, Xiquan;Cai, Bolin;Ma, Manting;Chen, Biao;Li, Zhenhui;Abdalla, Bahareldin Ali;Nie, Qinghua;Zhang, Xiquan

作者机构：

期刊名称：CELL DEATH & DISEASE （ 影响因子：8.469； 五年影响因子：8.713 ）

ISSN： 2041-4889

年卷期： 2018 年 9 卷

页码：

收录情况： SCI

摘要： The proliferation, apoptosis, and differentiation of myoblasts are essential processes in skeletal muscle development. During this developmental process, microRNAs (miRNAs) play crucial roles. In our previous RNA-seq study (accession number GSE62971), we found that miR-16-5p was differentially expressed between fast and slow growth in chicken. In this study, we report that miR-16-5p could inhibit myoblast proliferation, promote myoblast apoptosis, and repress myoblast differentiation by directly binding to the 3' UTR of SESN1, which is also differentially expressed. Overexpression of SESN1 significantly promoted the proliferation, inhibited apoptosis, and induced differentiation of myoblasts. Conversely, its loss of function hampered myoblast proliferation, facilitated myoblast apoptosis, and inhibited myoblast differentiation. Interestingly, we found SESN1 could regulate p53 by a feedback mechanism, thereby participating in the regulation of p53 signaling pathway, which suggests that this feedback is indispensable for myoblast proliferation and apoptosis. Altogether, these data demonstrated that miR-16-5p directly targets SESN1 to regulate the p53 signaling pathway, and therefore affecting myoblast proliferation and apoptosis. Additionally, SESN1 targets myogenic genes to control myoblast differentiation.

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