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ssc-miR-451 Regulates Porcine Primary Adipocyte Differentiation by Targeting ACACA

文献类型： 外文期刊

作者： Gan, Mailin 1 ; Shen, Linyuan 1 ; Fan, Yuan 1 ; Tan, Ya 1 ; Liu, Lin 1 ; Chen, Lei 1 ; Zhao, Ye 1 ; Niu, Lili 1 ; Tang, Guoq 1 ;

作者机构： 1.Sichuan Agr Univ, Coll Anim Sci & Technol, Chengdu 611130, Peoples R China

2.Sichuan Agr Univ, Farm Anim Genet Resources Explorat & Innovat Key, Chengdu 611130, Peoples R China

3.Guizhou Acad Agr Sci, Inst Anim Husb & Vet, Guiyang 550005, Peoples R China

4.Sichuan Prov Gen Stn Anim Husb, Chengdu 611130, Peoples R China

5.Chongqing Acad Anim Sci, Chongqing 402460, Rongchang Count, Peoples R China

关键词： ssc-miR-451; adipocyte differentiation; meat quality; fatty acid; ACACA

期刊名称：ANIMALS （ 影响因子：2.752； 五年影响因子：2.942 ）

ISSN： 2076-2615

年卷期： 2020 年 10 卷 10 期

页码：

收录情况： SCI

摘要： Simple Summary miR-451 has been extensively studied in humans and model animals. However, there are no reports of miR-451 in pigs, and it is unclear whether miR-451 is related to adipose tissue development. In this work, we first reported the effects of ssc-miR-451 on pig adipose development and meat quality. We focused on the expression and functions of miR-451 in porcine primary adipocyte and pork quality. Porcine primary adipocyte transfection test and dual luciferase reporting system suggested that ssc-miR-451 may inhibit lipid deposition by inhibiting Acetyl-CoA carboxylase alpha (ACACA) expression. Correlation analysis negatively correlated miR-451 expression with intramuscular fat content and positively correlated ACACA expression with intramuscular fat content. Further analysis of fatty acid composition revealed that pigs with high expression of ssc-miR-451 had higher monounsaturated fatty acid and lower polyunsaturated fatty acid. miRNA is a small non-coding RNA, which plays an important role in diverse biological processes. In the present study, we explore the effect of ssc-miR-451 on porcine adipose development and meat quality. We observed that ssc-miR-451 was downregulated during porcine primary adipocyte differentiation. Overexpression of ssc-miR-451 inhibited adipogenic differentiation, while inhibition of ssc-miR-451 promoted adipogenic differentiation. The dual luciferase reporter system indicated Acetyl-CoA carboxylase alpha (ACACA) as a target gene of ssc-miR-451. Correlation analysis negatively correlated miR-451 expression with intramuscular fat content (IMF) and positively correlated ACACA expression with IMF. Further analysis of fatty acid composition revealed that pigs with high expression of ssc-miR-451 had higher monounsaturated fatty acid (MUFA) and lower polyunsaturated fatty acid (PUFA). Taken together, our study suggests that ssc-miR-451 regulates lipid deposition and fatty acid composition by targeting ACACA, and ssc-miR-451 may serve as a potential genetic marker to improve pork quality.

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