Bovine enhancer-regulated circSGCB acts as a ceRNA to regulate skeletal muscle development via enhancing KLF3 expression
文献类型： 外文期刊
作者： Xu, Jiawei 1 ; Wen, Yifan 1 ; Li, Xinmiao 1 ; Peng, Wei 2 ; Zhang, Zijing 3 ; Liu, Xian 4 ; Yang, Peng 1 ; Chen, Ningbo 1 ; Lei, Chuzhao 1 ; Zhang, Jun 2 ; Wang, Eryao 3 ; Chen, Hong 1 ; Huang, Yongzhen 1 ;
作者机构： 1.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Shaanxi, Peoples R China
2.Qinghai Univ, Qinghai Acad Anim Sci & Vet Med, Xining 810016, Peoples R China
3.Henan Acad Agr Sci, Inst Anim Husb & Vet Sci, Zhengzhou 450002, Henan, Peoples R China
4.Henan Prov Anim Husb Gen Stn, Zhengzhou 450008, Henan, Peoples R China
5.Northwest A&F Univ, Coll Anim Sci & Technol, 22 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China
关键词： circSGCB; ceRNA mechanism; Enhancer; KLF3; Muscle development
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）
ISSN： 0141-8130
年卷期： 2024 年 261 卷
页码：
收录情况： SCI
摘要： Skeletal muscle growth and development in livestock and poultry play a pivotal role in determining the quality and yield of meat production. However, the mechanisms of myogenesis are remained unclear due to it finely regulated by a complex network of biological macromolecules. In this study, leveraging previous sequencing data, we investigated a differentially expressed circular RNA (circSGCB) present in fetal and adult muscle tissues among various ruminant species, including cattle, goat, and sheep. Our analysis revealed that circSGCB is a single exon circRNA, potentially regulated by an adjacent bovine enhancer. Functional analysis through loss -offunction tests demonstrated that circSGCB exerts inhibitory effects on bovine myoblast proliferation while promoting myocytes generation. Furthermore, we discovered that circSGCB primarily localizes to the cytoplasm, where it functions as a molecular sponge by binding to bta-miR-27a-3p. This interaction releases the mRNAs of KLF3 gene and further activates downstream functional pathways. In vivo, studies provided evidence that upregulation of KLF3 contributes to muscle regeneration. These findings collectively suggest that circSGCB operates via a competing endogenous RNA (ceRNA) mechanism to regulate KLF3, thereby influencing myogenesis in ruminants and highlights it may as potential molecular targets for enhancing meat production in livestock and poultry industries.
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