Bta-Mir-24-3P Controls The Myogenic Differentiation And Proliferation Of Fetal Bovine Skeletal Muscle-Derived Progenitor Cells By Targeting Acvr1B
文献类型: 外文期刊
作者: Hu, X; Xing, YS; Ren, L; Wang, YH; Li, Q; Fu, X; Yang, QY; Xu, LY; Willems, L; Li, JY; Zhang, LP
作者机构:
关键词: Bta-Mir-24-3P; Bovine; Fetal Skeletal Muscle; Proliferation; Differentiation; Acvr1B
期刊名称: ANIMALS
ISSN: 2076-2615
年卷期: 2019 年 9 卷 11 期
页码:
收录情况: JCR(2021版)
摘要: Simple Summary: MicroRNAs play pivotal roles in skeletal muscle development, but the molecular basis of their functions in fetal bovine skeletal muscle development is largely unknown. Here, we report a mechanistic study of bta-miR-24-3p, a key miRNA regulator of the myogenic differentiation of fetal bovine platelet-derived growth factor receptor alpha negative (PDGFR alpha(-)) progenitor cells. We isolated progenitor cells from the bovine fetal longissimus dorsi muscle and purified them with PDGFR alpha antibodies to remove fibro-adipogenic progenitors. We observed elevated bta-miR-24-3p expression during differentiation, and bta-miR-24-3p overexpression led to promoted myogenic differentiation but suppressed proliferation. Moreover, activin receptor type 1B (ACVR1B) was identified as a direct target of bta-miR-24-3p, and ACVR1B-silencing cells exhibited similar phenotypes to bta-miR-24-3p-overexpressing bovine PDGFR alpha(-) progenitor cells. These results extended our understanding on the roles of miRNA in fetal muscle development. The method of removing fibro-adipogenic progenitors in our study will also provide useful information for other investigators. Abstract: MicroRNAs modulate a variety of cellular events, including skeletal muscle development, but the molecular basis of their functions in fetal bovine skeletal muscle development is poorly understood. In this study, we report that bta-miR-24-3p promotes the myogenic differentiation of fetal bovine PDGFR alpha(-) progenitor cells. The expression of bta-miR-24-3p increased during myogenic differentiation. Overexpression of bta-miR-24-3p significantly promoted myogenic differentiation, but inhibited proliferation. A dual-luciferase assay identified ACVR1B as a direct target of bta-miR-24-3p. Similarly, knocking down ACVR1B by RNA interference also significantly inhibited proliferation and promoted the differentiation of bovine PDGFR alpha(-) progenitor cells. Thus, our study provides a mechanism in which bta-miR-24-3p regulates myogenesis by inhibiting ACVR1B expression.
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