PMID- 32146812 OWN - NLM STAT- MEDLINE DCOM- 20210104 LR - 20211204 IS - 1520-5118 (Electronic) IS - 0021-8561 (Linking) VI - 68 IP - 13 DP - 2020 Apr 1 TI - Differential Regulatory Roles of MicroRNAs in Porcine Intramuscular and Subcutaneous Adipocytes. PG - 3954-3962 LID - 10.1021/acs.jafc.9b08191 [doi] AB - The deposition of intramuscular (IM) and subcutaneous (SC) fat is an important trait influencing pork quality. Understanding the genetic differences between these two types of adipose tissues is consequently of great importance for pig breeding. Here, we established primary cultures of IM and SC adipocytes from Jiaxing black pigs. The microRNA (miRNA) expression profiles of the two types of adipocytes were obtained by RNA-seq. A total of 741 miRNAs were identified in IM and SC adipocytes, including 155 significant differentially expressed (SDE) miRNAs. According to gene ontology and Kyoto Encyclopedia of Genes analysis, the target genes of the SDE miRNAs were enriched in categories and pathways related to transcriptional regulation, fatty acid biosynthesis, as well as the MAPK and PI3K/Akt pathways. Notably, miR-206 expression was 36-fold higher in IM adipocytes than in SC adipocytes. The overexpression of miR-206 in IM and SC adipocytes decreased cell proliferation and triglyceride accumulation. Luciferase activity assays and quantitative polymerase chain reaction confirmed that miR-206 regulates adipocyte proliferation by targeting STARD7 and inhibits adipogenesis by repressing Kruppel-like factor 4 (KLF4) expression. Accordingly, the effect of miR-206 mimics was attenuated by the overexpression of KLF4 in adipocytes. Taken together, we identified the expression profiles of miRNAs in adipocytes, which revealed that miR-206 acts as a suppressor of adipogenesis. FAU - Xu, Ke AU - Xu K AD - College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China. AD - College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China. FAU - Ji, Miao AU - Ji M AD - College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China. AD - College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China. FAU - Huang, Xin AU - Huang X AD - College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China. AD - College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China. FAU - Peng, Yongjia AU - Peng Y AD - College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China. FAU - Wu, Wenjing AU - Wu W AUID- ORCID: 0000-0001-8479-0895 AD - College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China. FAU - Zhang, Jin AU - Zhang J AD - College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China. LA - eng PT - Journal Article DEP - 20200318 PL - United States TA - J Agric Food Chem JT - Journal of agricultural and food chemistry JID - 0374755 RN - 0 (Kruppel-Like Factor 4) RN - 0 (Kruppel-Like Transcription Factors) RN - 0 (MicroRNAs) SB - IM MH - Adipocytes/cytology/*metabolism MH - Animals MH - Cell Proliferation MH - Gene Expression Regulation MH - Kruppel-Like Factor 4 MH - Kruppel-Like Transcription Factors/genetics/metabolism MH - MicroRNAs/genetics/*metabolism MH - Subcutaneous Fat/*cytology/metabolism MH - Swine OTO - NOTNLM OT - RNA-seq OT - intramuscular adipocytes OT - miRNA OT - pork quality OT - subcutaneous adipocytes EDAT- 2020/03/10 06:00 MHDA- 2021/01/05 06:00 CRDT- 2020/03/10 06:00 PHST- 2020/03/10 06:00 [pubmed] PHST- 2021/01/05 06:00 [medline] PHST- 2020/03/10 06:00 [entrez] AID - 10.1021/acs.jafc.9b08191 [doi] PST - ppublish SO - J Agric Food Chem. 2020 Apr 1;68(13):3954-3962. doi: 10.1021/acs.jafc.9b08191. Epub 2020 Mar 18.