PMID- 28882569 OWN - NLM STAT- MEDLINE DCOM- 20171018 LR - 20171018 IS - 1879-0038 (Electronic) IS - 0378-1119 (Linking) VI - 636 DP - 2017 Dec 15 TI - miR-130a regulates differential lipid accumulation between intramuscular and subcutaneous adipose tissues of pigs via suppressing PPARG expression. PG - 23-29 LID - S0378-1119(17)30674-1 [pii] LID - 10.1016/j.gene.2017.08.036 [doi] AB - To investigate the molecular mechanism underlying differential lipid deposition between intramuscular (IM) and subcutaneous (SC) fat tissues of pigs, peroxisome proliferator-activated receptor gamma (PPARG) expression levels were compared in these two types of adipose tissues. The results showed that both mRNA and protein levels of PPARG were significantly higher in SC fat than in IM fat. Correspondingly, the expression levels of miR-128 and miR-130a, which potentially targeting PPARG 3'-untranslated region (3'-UTR), in IM fat were 8.37 and 2.30-fold of those in SC fat respectively. Further dual luciferase activity assay showed that only miR-130a directly targeting PPARG. Moreover, over-expression of miR-130a in preadipocytes significantly inhibited its differentiation by suppressing PPARG expression. In conclusion, tissue variance of miR-130a levels results in the diverse of PPARG, and might be the reason for differential fat deposition between IM and SC fat tissues in pigs. Our study would provide the molecular foundation for IM fat deposition increase and therefore contribute to pork quality improvement. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Wei, Wei AU - Wei W AD - College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China. FAU - Sun, Wenxing AU - Sun W AD - College of Public Health, Nantong University, Nantong, Jiangsu 226019, China. FAU - Han, Haiyin AU - Han H AD - College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China. FAU - Chu, Weiwei AU - Chu W AD - College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China. FAU - Zhang, Lifan AU - Zhang L AD - College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China. FAU - Chen, Jie AU - Chen J AD - College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China. Electronic address: jiechen@njau.edu.cn. LA - eng PT - Journal Article DEP - 20170904 PL - Netherlands TA - Gene JT - Gene JID - 7706761 RN - 0 (3' Untranslated Regions) RN - 0 (Lipids) RN - 0 (MicroRNAs) RN - 0 (PPAR gamma) RN - 0 (RNA, Messenger) SB - IM MH - 3' Untranslated Regions MH - Adipocytes/cytology/metabolism MH - Adipose Tissue/*metabolism MH - Animals MH - Cell Differentiation MH - *Gene Expression Regulation MH - Lipids MH - Male MH - MicroRNAs/*metabolism MH - PPAR gamma/*genetics/metabolism MH - RNA, Messenger/metabolism MH - Stem Cells/cytology/metabolism MH - Subcutaneous Fat/*metabolism MH - Sus scrofa/*genetics/metabolism OTO - NOTNLM OT - Fat deposition OT - PPARG OT - Pork quality OT - miR-130a EDAT- 2017/09/09 06:00 MHDA- 2017/10/19 06:00 CRDT- 2017/09/09 06:00 PHST- 2017/03/03 00:00 [received] PHST- 2017/08/17 00:00 [revised] PHST- 2017/08/24 00:00 [accepted] PHST- 2017/09/09 06:00 [pubmed] PHST- 2017/10/19 06:00 [medline] PHST- 2017/09/09 06:00 [entrez] AID - S0378-1119(17)30674-1 [pii] AID - 10.1016/j.gene.2017.08.036 [doi] PST - ppublish SO - Gene. 2017 Dec 15;636:23-29. doi: 10.1016/j.gene.2017.08.036. Epub 2017 Sep 4.