PMID- 38438106 OWN - NLM STAT- Publisher LR - 20240317 IS - 1532-8600 (Electronic) IS - 0026-0495 (Linking) VI - 155 DP - 2024 Mar 2 TI - Interleukin-6 classic and trans-signaling utilize glucose metabolism reprogramming to achieve anti- or pro-inflammatory effects. PG - 155832 LID - S0026-0495(24)00058-1 [pii] LID - 10.1016/j.metabol.2024.155832 [doi] AB - Interleukin (IL)-6 has anti- and pro-inflammatory functions, controlled by IL-6 classic and trans-signaling, respectively. Differences in the downstream signaling mechanism between IL-6 classic and trans-signaling have not been identified. Here, we report that IL-6 activates glycolysis to regulate the inflammatory response. IL-6 regulates glucose metabolism by forming a complex containing signal-transducing activators of transcription 3 (STAT3), hexokinase 2 (HK2), and voltage-dependent anion channel 1 (VDAC1). The IL-6 classic signaling directs glucose flux to oxidative phosphorylation (OxPhos), while IL-6 trans-signaling directs glucose flux to anaerobic glycolysis. Classic IL-6 signaling promotes STAT3 translocation into mitochondria to interact with pyruvate dehydrogenase kinase-1 (PDK1), leading to pyruvate dehydrogenase alpha (PDHA) dissociation from PDK1. As a result, PDHA is dephosphorylated, and STAT3 is phosphorylated at Ser727. By contrast, IL-6 trans-signaling promotes the interaction of sirtuin 2 (SIRT2) and lactate dehydrogenase A (LDHA), leading to the dissociation of STAT3 from SIRT2. As a result, LDHA is deacetylated, and STAT3 is acetylated and phosphorylated at Tyr705. IL-6 classic signaling promotes the differentiation of regulatory T cells via the PDK1/STAT3/PDHA axis, whereas IL-6 trans-signaling promotes the differentiation of Th17 cells via the SIRT2/STAT3/LDHA axis. Conclusion: IL-6 classic signaling generates anti-inflammatory functions by shifting energy metabolism to OxPhos, while IL-6 trans-signaling generates pro-inflammatory functions by shifting energy metabolism to anaerobic glycolysis. CI - Copyright (c) 2024 Elsevier Inc. All rights reserved. FAU - Xu, Shilei AU - Xu S AD - Department of General Surgery, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510530, China. Electronic address: xushl5@mail.sysu.edu.cn. FAU - Deng, Ke-Qiong AU - Deng KQ AD - Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430072, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430072, China. Electronic address: dengkeqiong@whu.edu.cn. FAU - Lu, Chengbo AU - Lu C AD - State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China. FAU - Fu, Xin AU - Fu X AD - State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China. FAU - Zhu, Qingmei AU - Zhu Q AD - State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China. Electronic address: 2022202040038@whu.edu.cn. FAU - Wan, Shiqi AU - Wan S AD - State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China. Electronic address: 2022202040020@whu.edu.cn. FAU - Zhang, Lin AU - Zhang L AD - Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430072, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430072, China. FAU - Huang, Yu AU - Huang Y AD - Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430072, China. Electronic address: huangyuu@whu.edu.cn. FAU - Nie, Longyu AU - Nie L AD - Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430072, China. Electronic address: nielongyu@whu.edu.cn. FAU - Cai, Huanhuan AU - Cai H AD - Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430072, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430072, China. Electronic address: caihuanhuan@whu.edu.cn. FAU - Wang, Qiming AU - Wang Q AD - College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, Human Province, China. FAU - Zeng, Hao AU - Zeng H AD - The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, China. Electronic address: hao.zeng@whu.edu.cn. FAU - Zhang, Yufeng AU - Zhang Y AD - The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, China. Electronic address: zyf@whu.edu.cn. FAU - Wang, Fubing AU - Wang F AD - Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan 430072, China. FAU - Ren, Hong AU - Ren H AD - Shanghai Children's Medical Center, Affiliated Hospital to Shanghai Jiao Tong University School of Medicine, China. Electronic address: renhong@scmc.com.cn. FAU - Chen, Yu AU - Chen Y AD - State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China. Electronic address: chenyu@whu.edu.cn. FAU - Yan, Huan AU - Yan H AD - State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China. Electronic address: huanyan@whu.edu.cn. FAU - Xu, Ke AU - Xu K AD - State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China. Electronic address: xuke03@whu.edu.cn. FAU - Zhou, Li AU - Zhou L AD - State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China. Electronic address: zhouli_jerry@whu.edu.cn. FAU - Lu, Mengji AU - Lu M AD - Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen 45122, Germany. Electronic address: mengji.lu@uni-due.de. FAU - Zhu, Ying AU - Zhu Y AD - State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China. Electronic address: yingzhu@whu.edu.cn. FAU - Liu, Shi AU - Liu S AD - Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430072, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430072, China; State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Taikang Center for Life and Medical Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, Human Province, China. Electronic address: liushi_liushi@whu.edu.cn. FAU - Lu, Zhibing AU - Lu Z AD - Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430072, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430072, China. Electronic address: luzhibing222@163.com. LA - eng PT - Journal Article DEP - 20240302 PL - United States TA - Metabolism JT - Metabolism: clinical and experimental JID - 0375267 SB - IM OTO - NOTNLM OT - Glucose metabolism OT - Inflammatory functions OT - Interleukin-6 COIS- Declaration of competing interest The authors 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- 2024/03/05 00:45 MHDA- 2024/03/05 00:45 CRDT- 2024/03/04 19:16 PHST- 2023/12/15 00:00 [received] PHST- 2024/02/26 00:00 [revised] PHST- 2024/02/29 00:00 [accepted] PHST- 2024/03/05 00:45 [pubmed] PHST- 2024/03/05 00:45 [medline] PHST- 2024/03/04 19:16 [entrez] AID - S0026-0495(24)00058-1 [pii] AID - 10.1016/j.metabol.2024.155832 [doi] PST - aheadofprint SO - Metabolism. 2024 Mar 2;155:155832. doi: 10.1016/j.metabol.2024.155832.