PMID- 36566874 OWN - NLM STAT- MEDLINE DCOM- 20230120 LR - 20230224 IS - 1879-2618 (Electronic) IS - 1388-1981 (Linking) VI - 1868 IP - 3 DP - 2023 Mar TI - Enzymatically-epoxidized docosahexaenoic acid, 19,20-EpDPE, suppresses hepatic crown-like structure formation and nonalcoholic steatohepatitis fibrosis through GPR120. PG - 159275 LID - S1388-1981(22)00165-2 [pii] LID - 10.1016/j.bbalip.2022.159275 [doi] AB - A hepatic crown-like structure (hCLS) formed by macrophages accumulating around lipid droplets and dead cells in the liver is a unique feature of nonalcoholic steatohepatitis (NASH) that triggers progression of liver fibrosis. As hCLS plays a key role in the progression of NASH fibrosis, hCLS formation has emerged as a potential therapeutic target. n-3 polyunsaturated fatty acids (n-3 PUFAs) have potential suppressive effects on NASH fibrosis; however, the mechanisms underlying this effect are poorly understood. Here, we report that n-3 PUFA-enriched Fat-1 transgenic mice are resistant to hCLS formation and liver fibrosis in a NASH model induced by a combination of high-fat diet, CCl4 and a Liver X receptor (LXR) agonist. Liquid chromatography-tandem mass spectrometry-based mediator lipidomics revealed that the amount of endogenous n-3 PUFA-derived metabolites, such as 17,18-dihydroxyeicosatetraenoic acid (17,18-diHETE), and 19,20-epoxy docosapentaenoic acid (19,20-EpDPE), was significantly elevated in Fat-1 mice, along with hCLS formation. In particular, DHA-derived 19,20-EpDPE produced by Cyp4f18 attenuated the hCLS formation and liver fibrosis in a G protein-coupled receptor 120 (GPR120)-dependent manner. These results indicated that 19,20-EpDPE is an endogenous active metabolite that mediates the preventive effect of n-3 PUFAs against NASH fibrosis. CI - Copyright (c) 2022 The Authors. Published by Elsevier B.V. All rights reserved. FAU - Aoki, Hidenori AU - Aoki H AD - Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Kanagawa 230-0045, Japan. FAU - Isobe, Yosuke AU - Isobe Y AD - Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Kanagawa 230-0045, Japan. FAU - Yoshida, Mio AU - Yoshida M AD - Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Kanagawa 230-0045, Japan. FAU - Kang, Jing X AU - Kang JX AD - Laboratory for Lipid Medicine and Technology, Massachusetts General Hospital and Harvard Medical School, 02114 Boston, MA, USA. FAU - Maekawa, Masashi AU - Maekawa M AD - Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Kanagawa 230-0045, Japan. FAU - Arita, Makoto AU - Arita M AD - Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Kanagawa 230-0045, Japan; Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa 230-0045, Japan. Electronic address: arita-mk@pha.keio.ac.jp. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221222 PL - Netherlands TA - Biochim Biophys Acta Mol Cell Biol Lipids JT - Biochimica et biophysica acta. Molecular and cell biology of lipids JID - 101731727 RN - 25167-62-8 (Docosahexaenoic Acids) RN - 0 (Fatty Acids, Omega-3) RN - 0 (Receptors, G-Protein-Coupled) SB - IM MH - Mice MH - Animals MH - *Non-alcoholic Fatty Liver Disease/drug therapy/metabolism MH - Docosahexaenoic Acids/pharmacology MH - Disease Models, Animal MH - Fibrosis MH - Liver Cirrhosis/drug therapy MH - *Fatty Acids, Omega-3/metabolism MH - Receptors, G-Protein-Coupled/genetics OTO - NOTNLM OT - 19,20-EpDPE OT - Cyp4f18 OT - GPR120 OT - Hepatic crown like structure OT - Liver fibrosis OT - NASH COIS- Declaration of competing interest We declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/12/26 06:00 MHDA- 2023/01/21 06:00 CRDT- 2022/12/25 19:13 PHST- 2022/08/15 00:00 [received] PHST- 2022/12/13 00:00 [revised] PHST- 2022/12/14 00:00 [accepted] PHST- 2022/12/26 06:00 [pubmed] PHST- 2023/01/21 06:00 [medline] PHST- 2022/12/25 19:13 [entrez] AID - S1388-1981(22)00165-2 [pii] AID - 10.1016/j.bbalip.2022.159275 [doi] PST - ppublish SO - Biochim Biophys Acta Mol Cell Biol Lipids. 2023 Mar;1868(3):159275. doi: 10.1016/j.bbalip.2022.159275. Epub 2022 Dec 22.