FNDC5 Promotes Adipogenic Differentiation of Primary Preadipocytes in Mashen Pigs

文献类型： 外文期刊

第一作者： Hei, Wei

作者： Hei, Wei;You, Ziwei;An, Jiaqi;Zhao, Tianzhi;Li, Jiao;Zhang, Wanfeng;Li, Meng;Yang, Yang;Gao, Pengfei;Cao, Guoqing;Guo, Xiaohong;Cai, Chunbo;Li, Bugao;Cai, Chunbo

作者机构：

关键词： FNDC5; adipogenic differentiation; primary preadipocytes; Mashen pigs; ERK1; 2

期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN：

年卷期： 2023 年 14 卷 1 期

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收录情况： SCI

摘要： Fibronectin type III domain-containing protein 5 (FNDC5) plays an important role in fat deposition, which can be cut to form Irisin to promote fat thermogenesis, resulting in a decrease in fat content. However, the mechanism of FNDC5 related to fat deposition in pigs is still unclear. In this research, we studied the expression of FNDC5 on different adiposes and its function in the adipogenic differentiation of primary preadipocytes in Mashen pigs. The expression pattern of FNDC5 was detected by qRT-PCR and Western blotting in Mashen pigs. FNDC5 overexpression and interference vectors were constructed and transfected into porcine primary preadipocytes by lentivirus. Then, the expression of key adipogenic genes was detected by qRT-PCR and the content of lipid droplets was detected by Oil Red O staining. The results showed that the expression of FNDC5 in abdominal fat was higher than that in back subcutaneous fat in Mashen pigs, whereas the expression in back subcutaneous fat of Mashen pigs was significantly higher than that of Large White pigs. In vitro, FNDC5 promoted the adipogenic differentiation of primary preadipocytes of Mashen pigs and upregulated the expression of genes related to adipogenesis, but did not activate the extracellular signal-regulated kinase (ERK) signaling pathway. This study can provide a theoretical basis for FNDC5 in adipogenic differentiation in pigs.

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