PMID- 31962236 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210110 IS - 2589-0042 (Electronic) IS - 2589-0042 (Linking) VI - 23 IP - 1 DP - 2020 Jan 24 TI - Spermidine Suppresses Inflammatory DC Function by Activating the FOXO3 Pathway and Counteracts Autoimmunity. PG - 100807 LID - S2589-0042(19)30553-X [pii] LID - 10.1016/j.isci.2019.100807 [doi] LID - 100807 AB - Dendritic cells (DCs) function is intimately linked to microenvironment and metabolism. Type I interferons (IFNs) condition dendritic cells to respond to weak self-signals, leading to autoimmunity. However, the metabolic adaption in the process is unclear. Here, we identified spermidine as a critical metabolite impacting the metabolic fitness of DC. First, dynamic metabolome screening indicated that spermidine decreased during IFN priming and following TLR7 ligand stimulation, accompanied by metabolic change from oxidative phosphorylation to glycolysis. Second, spermidine supplement restrained the glycolysis and prevented the overactivation of IFN-alpha primed DC both in vivo and in vitro. Third, mechanism study uncovered that the activity of FOXO3 adapted to the metabolic change, mediating the anti-inflammatory effect of spermidine. More importantly, addition of spermidine in vivo greatly alleviated the development of psoriasis-like symptom in mice. Thus, our studies revealed metabolic changes boosting DC responses and identified spermidine as a potential therapeutic agent for autoimmune diseases. CI - Copyright (c) 2019 The Author(s). Published by Elsevier Inc. All rights reserved. FAU - Li, Guanhua AU - Li G AD - Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), 145 Shan Dong Middle Road, Shanghai 200001, China. FAU - Ding, Huihua AU - Ding H AD - Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), 145 Shan Dong Middle Road, Shanghai 200001, China. FAU - Yu, Xiang AU - Yu X AD - Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), 145 Shan Dong Middle Road, Shanghai 200001, China. FAU - Meng, Yao AU - Meng Y AD - Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), 145 Shan Dong Middle Road, Shanghai 200001, China. FAU - Li, Jun AU - Li J AD - Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), 145 Shan Dong Middle Road, Shanghai 200001, China. FAU - Guo, Qiang AU - Guo Q AD - Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), 145 Shan Dong Middle Road, Shanghai 200001, China. FAU - Zhou, Haibo AU - Zhou H AD - Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), 145 Shan Dong Middle Road, Shanghai 200001, China; Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen 518040, China. Electronic address: hbzhou1984@gmail.com. FAU - Shen, Nan AU - Shen N AD - Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), 145 Shan Dong Middle Road, Shanghai 200001, China; Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen 518040, China; Center for Autoimmune Genomics and Etiology (CAGE), Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA; State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200032, China. Electronic address: nanshensibs@gmail.com. LA - eng PT - Journal Article DEP - 20191227 PL - United States TA - iScience JT - iScience JID - 101724038 PMC - PMC6971394 OTO - NOTNLM OT - Biological Sciences OT - Cell Biology OT - Immunology OT - Metabolomics COIS- Declaration of Interests The authors declare no competing interests. EDAT- 2020/01/22 06:00 MHDA- 2020/01/22 06:01 PMCR- 2019/12/27 CRDT- 2020/01/22 06:00 PHST- 2019/08/18 00:00 [received] PHST- 2019/11/27 00:00 [revised] PHST- 2019/12/23 00:00 [accepted] PHST- 2020/01/22 06:00 [pubmed] PHST- 2020/01/22 06:01 [medline] PHST- 2020/01/22 06:00 [entrez] PHST- 2019/12/27 00:00 [pmc-release] AID - S2589-0042(19)30553-X [pii] AID - 100807 [pii] AID - 10.1016/j.isci.2019.100807 [doi] PST - ppublish SO - iScience. 2020 Jan 24;23(1):100807. doi: 10.1016/j.isci.2019.100807. Epub 2019 Dec 27.