PMID- 34016263 OWN - NLM STAT- MEDLINE DCOM- 20211115 LR - 20240313 IS - 1558-3597 (Electronic) IS - 0735-1097 (Print) IS - 0735-1097 (Linking) VI - 77 IP - 20 DP - 2021 May 25 TI - Fat-Secreted Ceramides Regulate Vascular Redox State and Influence Outcomes in Patients With Cardiovascular Disease. PG - 2494-2513 LID - S0735-1097(21)01097-4 [pii] LID - 10.1016/j.jacc.2021.03.314 [doi] AB - BACKGROUND: Obesity is associated with increased cardiovascular risk; however, the potential role of dysregulations in the adipose tissue (AT) metabolome is unknown. OBJECTIVES: The aim of this study was to explore the role of dysregulation in the AT metabolome on vascular redox signaling and cardiovascular outcomes. METHODS: A screen was conducted for metabolites differentially secreted by thoracic AT (ThAT) and subcutaneous AT in obese patients with atherosclerosis (n = 48), and these metabolites were then linked with dysregulated vascular redox signaling in 633 patients undergoing coronary bypass surgery. The underlying mechanisms were explored in human aortic endothelial cells, and their clinical value was tested against hard clinical endpoints. RESULTS: Because ThAT volume was associated significantly with arterial oxidative stress, there were significant differences in sphingolipid secretion between ThAT and subcutaneous AT, with C16:0-ceramide and derivatives being the most abundant species released within adipocyte-derived extracellular vesicles. High ThAT sphingolipid secretion was significantly associated with reduced endothelial nitric oxide bioavailability and increased superoxide generated in human vessels. Circulating C16:0-ceramide correlated positively with ThAT ceramides, dysregulated vascular redox signaling, and increased systemic inflammation in 633 patients with atherosclerosis. Exogenous C16:0-ceramide directly increased superoxide via tetrahydrobiopterin-mediated endothelial nitric oxide synthase uncoupling and dysregulated protein phosphatase 2 in human aortic endothelial cells. High plasma C16:0-ceramide and its glycosylated derivative were independently related with increased risk for cardiac mortality (adjusted hazard ratios: 1.394; 95% confidence interval: 1.030 to 1.886; p = 0.031 for C16:0-ceramide and 1.595; 95% confidence interval: 1.042 to 2.442; p = 0.032 for C16:0-glycosylceramide per 1 SD). In a randomized controlled clinical trial, 1-year treatment of obese patients with the glucagon-like peptide-1 analog liraglutide suppressed plasma C16:0-ceramide and C16:0-glycosylceramide changes compared with control subjects. CONCLUSIONS: These results demonstrate for the first time in humans that AT-derived ceramides are modifiable regulators of vascular redox state in obesity, with a direct impact on cardiac mortality in advanced atherosclerosis. (The Interaction Between Appetite Hormones; NCT02094183). CI - Copyright (c) 2021 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Akawi, Nadia AU - Akawi N AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom; Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates. Electronic address: https://twitter.com/NadiaAkawi. FAU - Checa, Antonio AU - Checa A AD - Division of Physiological Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden. FAU - Antonopoulos, Alexios S AU - Antonopoulos AS AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Akoumianakis, Ioannis AU - Akoumianakis I AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Daskalaki, Evangelia AU - Daskalaki E AD - Division of Physiological Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden. FAU - Kotanidis, Christos P AU - Kotanidis CP AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Kondo, Hidekazu AU - Kondo H AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Lee, Kirsten AU - Lee K AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Yesilyurt, Dilan AU - Yesilyurt D AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Badi, Ileana AU - Badi I AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Polkinghorne, Murray AU - Polkinghorne M AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Akbar, Naveed AU - Akbar N AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Lundgren, Julie AU - Lundgren J AD - Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. FAU - Chuaiphichai, Surawee AU - Chuaiphichai S AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Choudhury, Robin AU - Choudhury R AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Neubauer, Stefan AU - Neubauer S AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Channon, Keith M AU - Channon KM AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. FAU - Torekov, Signe S AU - Torekov SS AD - Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. FAU - Wheelock, Craig E AU - Wheelock CE AD - Division of Physiological Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden. FAU - Antoniades, Charalambos AU - Antoniades C AD - Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. Electronic address: antoniad@well.ox.ac.uk. LA - eng SI - ClinicalTrials.gov/NCT02094183 GR - CH/F/21/90009/BHF_/British Heart Foundation/United Kingdom GR - FS/16/15/32047/BHF_/British Heart Foundation/United Kingdom GR - DH_/Department of Health/United Kingdom GR - RG/17/10/32859/BHF_/British Heart Foundation/United Kingdom GR - PG/13/56/30383/BHF_/British Heart Foundation/United Kingdom GR - RG/13/1/30181/BHF_/British Heart Foundation/United Kingdom GR - RG/F/21/110040/BHF_/British Heart Foundation/United Kingdom GR - CH/16/1/32013/BHF_/British Heart Foundation/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Am Coll Cardiol JT - Journal of the American College of Cardiology JID - 8301365 RN - 0 (Ceramides) RN - 0 (Sphingolipids) RN - 11062-77-4 (Superoxides) RN - 839I73S42A (Liraglutide) SB - IM CIN - J Am Coll Cardiol. 2021 May 25;77(20):2514-2516. PMID: 34016264 MH - Adipose Tissue/*metabolism MH - Arteries/*metabolism MH - Atherosclerosis/complications/*metabolism/mortality MH - Case-Control Studies MH - Ceramides/*metabolism MH - Endothelium, Vascular/metabolism MH - Extracellular Vesicles/metabolism MH - Humans MH - In Vitro Techniques MH - Liraglutide MH - Metabolomics MH - Obesity/complications/*metabolism MH - Oxidative Stress MH - Randomized Controlled Trials as Topic MH - Sphingolipids/metabolism MH - Superoxides/metabolism PMC - PMC8141611 OTO - NOTNLM OT - C16:0-ceramide OT - adipose tissue OT - cardiovascular disease OT - metabolomics OT - sphingolipids OT - vascular redox state COIS- Funding Support and Author Disclosures This study was supported by the Novo Nordisk Foundation Tripartite Immunometabolism Consortium Award (NNF15CC0018486), the British Heart Foundation (FS/16/15/32047, PG/13/56/30383, RG/17/10/32859 and RG/F/21/110040) and British Heart Foundation Chair award (CH/16/1/32013), British Heart Foundation Centre of Research Excellence award (RG/13/1/30181), the National Institute for Health Research Oxford Biomedical Research Centre, and the Swedish Heart Lung Foundation (HLF 20180290). The authors have reported that they have no relationships relevant to the contents of this paper to disclose. EDAT- 2021/05/22 06:00 MHDA- 2021/11/16 06:00 PMCR- 2021/05/25 CRDT- 2021/05/21 05:49 PHST- 2021/02/04 00:00 [received] PHST- 2021/03/23 00:00 [revised] PHST- 2021/03/26 00:00 [accepted] PHST- 2021/05/21 05:49 [entrez] PHST- 2021/05/22 06:00 [pubmed] PHST- 2021/11/16 06:00 [medline] PHST- 2021/05/25 00:00 [pmc-release] AID - S0735-1097(21)01097-4 [pii] AID - 10.1016/j.jacc.2021.03.314 [doi] PST - ppublish SO - J Am Coll Cardiol. 2021 May 25;77(20):2494-2513. doi: 10.1016/j.jacc.2021.03.314.