PMID- 31215398 OWN - NLM STAT- MEDLINE DCOM- 20200316 LR - 20200316 IS - 1471-2164 (Electronic) IS - 1471-2164 (Linking) VI - 20 IP - 1 DP - 2019 Jun 18 TI - Comprehensive transcriptomic view of the role of the LGALS12 gene in porcine subcutaneous and intramuscular adipocytes. PG - 509 LID - 10.1186/s12864-019-5891-y [doi] LID - 509 AB - BACKGROUND: Livestock production aims to provide meats of high and consistent eating quality. Insufficient intramuscular (IM) fat and excessive subcutaneous (SC) fat are paramount pork quality challenges. IM fat and SC fat, which are modulated by the adipogenesis of IM and SC adipocytes, play key roles in pork quality. Galectin-12 (LGALS12) was proven to be an important regulator of fat deposition in porcine. However, the current knowledge of the transcriptome-wide role of LGALS12 in adipocytes is still limited. This study was aimed to discover the different regulatory mechanisms of LGALS12 in porcine IM and SC adipocyte. RESULTS: The siRNA-mediated knockdown of the expression of LGALS12 identified 1075 and 3016 differentially expressed genes (DEGs) in IM and SC adipocytes, respectively. Among these, 585 were up- and 490 were downregulated in the IM adipocytes, while 2186 were up- and 830 were downregulated in the SC adipocytes. Moreover, 418 DGEs were observed only in the IM adipocytes, 2359 DGEs only in the SC adipocytes, and 657 DGEs in both types of adipocytes. According to Gene Ontology (GO) analysis, DEGs in both IM and SC adipocytes were mainly enriched in categories related to lipids or fat cell differentiation. Pathway analysis of the DEGs revealed 88 changed signaling pathways in the IM adipocytes and 86 in the SC adipocytes. The signaling pathways present in only one type of adipocyte were identified from among the top 50 signaling pathways in each type of adipocyte. Four signaling pathways, encompassing PI3K-AKT, cardiac muscle contraction, fatty acid metabolism and Ras, were significantly enriched in the IM adipocytes. On the other hand, four different signaling pathways, encompassing TNF, WNT, cGMP-PKG and NF-kappa B, were greatly enriched in the SC ones. The pathway changes were confirmed by chemical inhibition assays. CONCLUSIONS: Our data reveals that LGALS12 knockdown alters the expression of numerous genes involved in key biological processes in the development of adipocytes. These observations provide a global view of the role of LGALS12 in porcine IM and SC adipocytes; thus, improving our understanding of the regulatory mechanisms by which this gene acts in fat development. FAU - Wu, Wenjing AU - Wu W AD - College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China. FAU - Zhang, Dawei AU - Zhang D AD - College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China. FAU - Yin, Yajun AU - Yin Y AD - College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China. FAU - Ji, Miao AU - Ji M AD - College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qin Huangdao Hebei, 066000, China. FAU - Xu, Ke AU - Xu K AD - College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qin Huangdao Hebei, 066000, China. FAU - Huang, Xin AU - Huang X AD - College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qin Huangdao Hebei, 066000, China. FAU - Peng, Yongjia AU - Peng Y 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. zhangjin7688@163.com. LA - eng GR - LQ18C170002/Zhejiang Natural Science Foundation/ GR - LY17C170003/Zhejiang Natural Science Foundation/ GR - C2014407083/Hebei Natural Science Foundation for Distinguished Young Scientists/ GR - 70516055/Initial Scientific Research Fund of Young Teachers in Jiaxing University/ GR - Y201738243/General Research Project of Zhejiang Provincial Department of Education/ PT - Journal Article DEP - 20190618 PL - England TA - BMC Genomics JT - BMC genomics JID - 100965258 RN - 0 (Galectins) RN - 0 (Transcription Factors) SB - IM MH - Adipocytes/*metabolism MH - Animals MH - Galectins/deficiency/*genetics MH - *Gene Expression Profiling MH - Gene Expression Regulation/genetics MH - Gene Ontology MH - Gene Silencing MH - Muscles/*cytology MH - Subcutaneous Fat/*cytology MH - Swine/*metabolism MH - Transcription Factors/metabolism PMC - PMC6582507 OTO - NOTNLM OT - Intramuscular adipocyte OT - LGALS12 OT - RNA-seq OT - Subcutaneous adipocyte OT - Sus scrofa COIS- The authors declare that they have no competing interests. EDAT- 2019/06/20 06:00 MHDA- 2020/03/17 06:00 PMCR- 2019/06/18 CRDT- 2019/06/20 06:00 PHST- 2019/02/28 00:00 [received] PHST- 2019/06/10 00:00 [accepted] PHST- 2019/06/20 06:00 [entrez] PHST- 2019/06/20 06:00 [pubmed] PHST- 2020/03/17 06:00 [medline] PHST- 2019/06/18 00:00 [pmc-release] AID - 10.1186/s12864-019-5891-y [pii] AID - 5891 [pii] AID - 10.1186/s12864-019-5891-y [doi] PST - epublish SO - BMC Genomics. 2019 Jun 18;20(1):509. doi: 10.1186/s12864-019-5891-y.