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Hernández-Díaz M, Rodríguez-González D, Heras-Recuero E, Gómez-Bernal F, Quevedo-Abeledo JC, González-Rivero AF, González-López E, Ocejo-Vinyals JG, Jimenez-Sosa A, González-Gay MÁ, Ferraz-Amaro I. The Relationship between the complement system and subclinical carotid atherosclerosis in patients with rheumatoid arthritis. Arthritis Res Ther 2024; 26:127. [PMID: 38978073 PMCID: PMC11229295 DOI: 10.1186/s13075-024-03360-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/01/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND Patients with rheumatoid arthritis (RA) have an increased risk of cardiovascular (CV) events and CV mortality. Subclinical carotid atherosclerosis is independently associated with rates of incident CV events among patients with RA. The complement system has been related to both the etiopathogenesis of RA and CV disease. In this study, we aimed to evaluate the association between a comprehensive assessment of the complement system and carotid intima media thickness and carotid plaque in patients with RA. METHODS 430 patients with RA were recruited. Functional assays of the three pathways of the complement system, utilizing new-generation techniques, were assessed. Additionally, serum levels of individual components of the complement system belonging to the three pathways were measured: C1q (classical), lectin (lectin), C2, C4, and C4b (classical and lectin), factor D and properdin (alternative), C3 and C3a (common), C5, C5a, and C9 (terminal), as well as regulators factor I and C1-inhibitor. Subclinical carotid atherosclerosis was evaluated by ultrasonography. Multivariable linear regression analysis was conducted to investigate the association between the complement system and carotid intima media thickness and carotid plaque. RESULTS After multivariable adjustment, which included traditional CV risk factors and disease-related data, C3a and C5a exhibited significant positive correlations with carotid intima media thickness. Additionally, higher values of C1-inhibitor, properdin, C3, C5, and C5a were independently associated with the presence of carotid plaque. CONCLUSION The complement system and subclinical carotid atherosclerosis are linked in patients with RA.
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Affiliation(s)
- Marta Hernández-Díaz
- Division of Rheumatology, Hospital Universitario de Canarias, Tenerife, Santander, Spain
| | | | - Elena Heras-Recuero
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, Av. de los Reyes Católicos, 2, Madrid, 28040, Spain
| | | | | | | | - Elena González-López
- Division of Immunology, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | | | | | - Miguel Ángel González-Gay
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, Av. de los Reyes Católicos, 2, Madrid, 28040, Spain.
- Department of Medicine and Psychiatry, University of Cantabria, Santander, Spain.
| | - Iván Ferraz-Amaro
- Division of Rheumatology, Hospital Universitario de Canarias, Tenerife, Santander, Spain.
- Department of Internal Medicine, University of La Laguna (ULL), Tenerife, Spain.
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Lowe GDO, Harris K, Koenig W, Ben-Shlomo Y, Thorand B, Peters A, Meisinger C, Imhof A, Tunstall-Pedoe H, Peters SAE, Woodward M. Plasma viscosity, immunoglobulins and risk of cardiovascular disease and mortality: new data and meta-analyses. J Clin Pathol 2024; 77:394-401. [PMID: 36828622 DOI: 10.1136/jcp-2022-208223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 02/02/2023] [Indexed: 02/26/2023]
Abstract
AIMS Associations of plasma viscosity and plasma Ig levels (a determinant of viscosity) with incident coronary heart disease (CHD) events; and with CHD, cardiovascular disease (CVD: CHD and stroke) and all-cause mortalities. METHODS Meta-analysis of plasma viscosity levels from the MONitoring of trends and determinants of CArdiovascular (MONICA)/Cooperative Health Research in the Region of Augsburg, MONICA Glasgow and Speedwell Studies; and five other published studies. Meta-analysis of IgA, IgG and IgM levels from the Augsburg, Glasgow and Speedwell studies; and one other published study. RESULTS Over median follow-up periods of 14-26 years, there were 2270 CHD events, and 4220 all cause deaths in 28 605 participants with baseline plasma viscosity measurements. After adjustment for major risk factors, (HRs; 95% CIs) for a 1 SD increase in viscosity were 1.14 (1.09 to 1.20) for CHD events; and 1.21 (1.17 to 1.25) for all-cause mortality. 821 CHD events and 2085 all-cause deaths occurred in 8218 participants with baseline Ig levels. For CHD events, adjusted HRs for 1 SD increases in IgA, IgG and IgM were, respectively, 0.97 (0.89 to 1.05); 0.95(0.76 to 1.17) and 0.90 (0.79 to 1.03). Corresponding adjusted HRs for all-cause mortality were 1.08 (95% CI 1.02 to 1.13), 1.03 (95% CI 0.94 to 1.14) and 1.01 (95% CI 0.96 to 1.06). CONCLUSIONS After risk factor adjustment, plasma viscosity was significantly associated with risks of CHD events; and with CHD, CVD and all-cause mortalities. We found no significant association of IgA, IgG or IgM levels with incident CHD events or mortality, except for a borderline association of IgA with all-cause mortality.
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Affiliation(s)
- Gordon D O Lowe
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Katie Harris
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Wolfgang Koenig
- German Heart Center Munich, Technical University of Munich, Munchen, Germany
- Partner Site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), Munich, Germany
| | - Yoav Ben-Shlomo
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Barbara Thorand
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Partner Munich-Neuherberg, German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Annette Peters
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Partner Munich-Neuherberg, German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Christa Meisinger
- Chair of Epidemiology, University Hospital Augsburg, Augsburg, Germany
- Independent Research Group Clinical Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Armin Imhof
- Department of Internal Medicine II - Cardiology, University of Ulm Medical Centre, Ulm, Germany
| | - Hugh Tunstall-Pedoe
- Cardiovascular Epidemiology Unit, Institute of Cardiovascular Research, University of Dundee, Dundee, UK
| | - Sanne A E Peters
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
- Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht, Netherlands
- The George Institute for Global Health, Imperial College London, London, UK
| | - Mark Woodward
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
- The George Institute for Global Health, Imperial College London, London, UK
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Meneghetti da Rosa J, Lidani KCF, Andrade FA, Sena L, Nisihara R, Ambrosio AR, Messias-Reason IJ. Mannose Binding Lectin and C3 Serum Levels in Coronary Artery Disease: A Cross-Sectional Study. Immunol Invest 2024:1-14. [PMID: 38634569 DOI: 10.1080/08820139.2024.2337023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
BACKGROUND The process of tissue injury in coronary artery disease (CAD) has been associated with activation of the complement system, partly due to the action of mannose-binding lectin (MBL) and C3, which are expressed in atherosclerotic lesions. OBJECTIVE The aim of this study was to evaluate the serum levels of MBL and C3 in patients with CAD and to compare them with healthy controls. Additionally, we aim to assess the correlation between MBL and C3 levels and cardiometabolic parameters. METHODS MBL and C3 serum concentration were determined by ELISA and immunoturbidimetry, respectively, in up to 119 patients undergoing coronary angiography for CAD evaluation, comprising 48 individuals diagnosed with acute myocardial infarction (MI) and 71 without MI. A total of 93 paired healthy controls were included in the study. RESULTS Individuals with CAD had MBL serum concentration higher than controls (p = .002), regardless of the presence of MI (p = .006). In addition, high concentration of MBL (>2000 ng/mL) was more frequent in patients with CAD (p = .007; OR = 2.6; 95% CI = 1.3-5.1). C3 levels were not significantly associated with any of the patient groups but were positively correlated with cardiometabolic parameters such as body mass index (BMI) and triglycerides levels. CONCLUSIONS Higher concentrations of MBL were found to be associated with CAD, whereas C3 levels were found to be associated with cardiovascular risk factors.
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Affiliation(s)
- Juliana Meneghetti da Rosa
- Laboratory of Molecular Immunopathology, Clinical Hospital, Federal University of Paraná (HC-UFPR), Curitiba, Brazil
| | - Kárita Cláudia Freitas Lidani
- Laboratory of Molecular Immunopathology, Clinical Hospital, Federal University of Paraná (HC-UFPR), Curitiba, Brazil
| | - Fabiana Antunes Andrade
- Laboratory of Molecular Immunopathology, Clinical Hospital, Federal University of Paraná (HC-UFPR), Curitiba, Brazil
- Department of Medicine, Positivo University, Curitiba, Brazil
| | - Léia Sena
- Laboratory of Molecular Immunopathology, Clinical Hospital, Federal University of Paraná (HC-UFPR), Curitiba, Brazil
| | - Renato Nisihara
- Laboratory of Molecular Immunopathology, Clinical Hospital, Federal University of Paraná (HC-UFPR), Curitiba, Brazil
- Department of Medicine, Positivo University, Curitiba, Brazil
| | - Altair Rogerio Ambrosio
- Laboratory of Molecular Immunopathology, Clinical Hospital, Federal University of Paraná (HC-UFPR), Curitiba, Brazil
- Department of Medicine, Positivo University, Curitiba, Brazil
| | - Iara J Messias-Reason
- Laboratory of Molecular Immunopathology, Clinical Hospital, Federal University of Paraná (HC-UFPR), Curitiba, Brazil
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Maffia P, Mauro C, Case A, Kemper C. Canonical and non-canonical roles of complement in atherosclerosis. Nat Rev Cardiol 2024:10.1038/s41569-024-01016-y. [PMID: 38600367 DOI: 10.1038/s41569-024-01016-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/18/2024] [Indexed: 04/12/2024]
Abstract
Cardiovascular diseases are the leading cause of death globally, and atherosclerosis is the major contributor to the development and progression of cardiovascular diseases. Immune responses have a central role in the pathogenesis of atherosclerosis, with the complement system being an acknowledged contributor. Chronic activation of liver-derived and serum-circulating canonical complement sustains endothelial inflammation and innate immune cell activation, and deposition of complement activation fragments on inflamed endothelial cells is a hallmark of atherosclerotic plaques. However, increasing evidence indicates that liver-independent, cell-autonomous and non-canonical complement activities are underappreciated contributors to atherosclerosis. Furthermore, complement activation can also have atheroprotective properties. These specific detrimental or beneficial contributions of the complement system to the pathogenesis of atherosclerosis are dictated by the location of complement activation and engagement of its canonical versus non-canonical functions in a temporal fashion during atherosclerosis progression. In this Review, we summarize the classical and the emerging non-classical roles of the complement system in the pathogenesis of atherosclerosis and discuss potential strategies for therapeutic modulation of complement for the prevention and treatment of atherosclerotic cardiovascular disease.
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Affiliation(s)
- Pasquale Maffia
- School of Infection & Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy
- Africa-Europe Cluster of Research Excellence (CoRE) in Non-Communicable Diseases & Multimorbidity, African Research Universities Alliance (ARUA) & The Guild, Accra, Ghana
| | - Claudio Mauro
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Ayden Case
- Heart and Lung Research Institute, University of Cambridge, Cambridge, UK
- Complement and Inflammation Research Section, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Claudia Kemper
- Complement and Inflammation Research Section, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA.
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Jin S, Eussen SJPM, Schalkwijk CG, Stehouwer CDA, van Greevenbroek MMJ. Plasma factor D is cross-sectionally associated with low-grade inflammation, endothelial dysfunction and cardiovascular disease: The Maastricht study. Atherosclerosis 2023; 377:60-67. [PMID: 37406499 DOI: 10.1016/j.atherosclerosis.2023.06.079] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 06/15/2023] [Accepted: 06/15/2023] [Indexed: 07/07/2023]
Abstract
BACKGROUND AND AIMS The complement system, particularly the alternative complement pathway, may contribute to vascular damage and development of cardiovascular disease (CVD). We investigated the association of factor D, the rate-limiting protease in alternative pathway activation, with adverse cardiovascular outcomes. METHODS In 2947 participants (50.6% men, 59.9 ± 8.2 years, 26.5% type 2 diabetes [T2D], oversampled) we measured markers of low-grade inflammation (LGI, composite score, in SD) and, endothelial dysfunction (ED, composite score, in SD), carotid intima-media thickness (cIMT, μm), ankle-brachial index (ABI), CVD (yes/no) and plasma concentrations of factor D (in SD). Associations were estimated using multiple linear and logistic regression, adjusting for demographic, lifestyle, and dietary factors. RESULTS Factor D (per SD) significantly associated with LGI (0.171 SD [0.137; 0.205]), ED (0.158 SD [0.123; 0.194]) and CVD (OR 1.15 [1.04; 1.27]) but not significantly with cIMT (-6.62 μm [-13.51; 0.27]) or ABI (-0.003 [-0.007; 0.001]). Interaction analyses show that factor D more strongly associated with ED in non-diabetes (0.237 SD [0.189; 0.285] than in T2D (0.095 SD [0.034; 0.157]), pinteraction <0.05. These results were largely corroborated by additional analyses with C3 and C3a. In contrast, factor D inversely associated with cIMT in non-diabetes (-13.37 μm [-21.84; -4.90]), but not in T2D (4.49 [-7.91; 16.89]), pinteraction <0.05. CONCLUSIONS Plasma factor D is independently associated with LGI, ED, and prevalent CVD but not with ABI or cIMT. Hence, greater plasma factor D concentration in CVD may potentially induce complement activation which, in turn, might contribute to further disease progression via a process that may involve inflammation and endothelial dysfunction but was not directly related to atherosclerosis or arterial injury. The observation that, in participants without diabetes, factor D associated with worse ED but smaller cIMT warrants further investigation.
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Affiliation(s)
- Shunxin Jin
- Department of Internal Medicine, CARIM School for Cardiovascular Diseases, the Netherlands
| | - Simone J P M Eussen
- Department of Epidemiology, CARIM School for Cardiovascular Diseases, the Netherlands; CAPHRI School for Public Health and Primary Care, Maastricht University and Maastricht University Medical Centre, the Netherlands
| | - Casper G Schalkwijk
- Department of Internal Medicine, CARIM School for Cardiovascular Diseases, the Netherlands
| | - Coen D A Stehouwer
- Department of Internal Medicine, CARIM School for Cardiovascular Diseases, the Netherlands
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6
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Jin S, Reesink KD, Kroon AA, de Galan B, van der Kallen CJH, Wesselius A, Schalkwijk CG, Stehouwer CDA, van Greevenbroek MMJ. Complement factors D and C3 cross-sectionally associate with arterial stiffness, but not independently of metabolic risk factors: The Maastricht Study. J Hypertens 2022; 40:2161-2170. [PMID: 35881455 DOI: 10.1097/hjh.0000000000003237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Arterial stiffness predicts cardiovascular outcomes. The complement system, particularly the alternative complement pathway, has been implicated in cardiovascular diseases. We herein investigated the associations of factor D, the rate-limiting protease of the alternative pathway, and C3, the central complement component, with arterial stiffness. METHODS In 3019 population-based participants (51.9% men, 60.1 ± 8.2 years, 27.7% type 2 diabetes [T2D], oversampled]), we measured carotid-femoral pulse wave velocity (cfPWV), carotid distensibility coefficient (DC) and carotid Young's elastic modulus (YEM), and plasma concentrations of factors D and C3. We conducted multiple linear regression to investigate the association of factors D and C3 (main independent variables, standardized) with cfPWV (primary outcome) and DC and YEM (secondary outcomes), adjusted for potential confounders. RESULTS Per SD higher factors D and C3, cfPWV was 0.41 m/s [95% confidence interval: 0.34; 0.49] and 0.33 m/s [0.25; 0.41] greater, respectively. These associations were substantially attenuated when adjusted for age, sex, education, mean arterial pressure, and heart rate (0.08 m/s [0.02; 0.15] and 0.11 m/s [0.05; 0.18], respectively), and were not significant when additionally adjusted for T2D, waist circumference and additional cardiovascular risk factors (0.06 m/s [-0.01; 0.13] and 0.01 m/s [-0.06; 0.09], respectively). Results were comparable for carotid YEM and DC. In persons with T2D, but not in those without, the association between factors D and cfPWV was significant in the fully adjusted model (0.14 m/s, [0.01; 0.27], P = 0.038, Pinteraction < 0.05). CONCLUSION The strong association of plasma factors D and C3 with arterial stiffness in this population-based cohort was not independent of T2D and other metabolic risk factors. Our data suggest that a possible causal pathway starting from alternative complement activation may via hypertension and T2D contribute to greater arterial stiffness.
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Affiliation(s)
- Shunxin Jin
- CARIM School for Cardiovascular Diseases
- Department of Internal Medicine
| | - Koen D Reesink
- CARIM School for Cardiovascular Diseases
- Department of Biomedical Technology
| | - Abraham A Kroon
- CARIM School for Cardiovascular Diseases
- Department of Internal Medicine
| | | | | | - Anke Wesselius
- Department of Genetics
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University and Maastricht University Medical Centre, Maastricht, The Netherlands
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Bernea EG, Suica VI, Uyy E, Cerveanu-Hogas A, Boteanu RM, Ivan L, Ceausu I, Mihai DA, Ionescu-Tîrgoviște C, Antohe F. Exosome Proteomics Reveals the Deregulation of Coagulation, Complement and Lipid Metabolism Proteins in Gestational Diabetes Mellitus. Molecules 2022; 27:molecules27175502. [PMID: 36080270 PMCID: PMC9457917 DOI: 10.3390/molecules27175502] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/22/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
Exosomes are small extracellular vesicles with a variable protein cargo in consonance with cell origin and pathophysiological conditions. Gestational diabetes mellitus (GDM) is characterized by different levels of chronic low-grade inflammation and vascular dysfunction; however, there are few data characterizing the serum exosomal protein cargo of GDM patients and associated signaling pathways. Eighteen pregnant women were enrolled in the study: 8 controls (CG) and 10 patients with GDM. Blood samples were collected from patients, for exosomes’ concentration. Protein abundance alterations were demonstrated by relative mass spectrometric analysis and their association with clinical parameters in GDM patients was performed using Pearson’s correlation analysis. The proteomics analysis revealed 78 significantly altered proteins when comparing GDM to CG, related to complement and coagulation cascades, platelet activation, prothrombotic factors and cholesterol metabolism. Down-regulation of Complement C3 (C3), Complement C5 (C5), C4-B (C4B), C4b-binding protein beta chain (C4BPB) and C4b-binding protein alpha chain (C4BPA), and up-regulation of C7, C9 and F12 were found in GDM. Our data indicated significant correlations between factors involved in the pathogenesis of GDM and clinical parameters that may improve the understanding of GDM pathophysiology. Data are available via ProteomeXchange with identifier PXD035673.
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Affiliation(s)
- Elena G. Bernea
- “Prof. N. Paulescu” National Institute of Diabetes, Nutrition and Metabolic Diseases, 020474 Bucharest, Romania
| | - Viorel I. Suica
- Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania
| | - Elena Uyy
- Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania
| | - Aurel Cerveanu-Hogas
- Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania
| | - Raluca M. Boteanu
- Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania
| | - Luminita Ivan
- Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania
| | - Iuliana Ceausu
- University of Medicine and Pharmacy “Carol Davila”, 020021 Bucharest, Romania
- “Dr. I. Cantacuzino” Hospital, 020475 Bucharest, Romania
| | - Doina A. Mihai
- “Prof. N. Paulescu” National Institute of Diabetes, Nutrition and Metabolic Diseases, 020474 Bucharest, Romania
- University of Medicine and Pharmacy “Carol Davila”, 020021 Bucharest, Romania
| | - Constantin Ionescu-Tîrgoviște
- “Prof. N. Paulescu” National Institute of Diabetes, Nutrition and Metabolic Diseases, 020474 Bucharest, Romania
- University of Medicine and Pharmacy “Carol Davila”, 020021 Bucharest, Romania
| | - Felicia Antohe
- Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania
- Correspondence: ; Tel.: +40213194518
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8
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Kiss MG, Binder CJ. The multifaceted impact of complement on atherosclerosis. Atherosclerosis 2022; 351:29-40. [DOI: 10.1016/j.atherosclerosis.2022.03.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/17/2022] [Accepted: 03/09/2022] [Indexed: 12/12/2022]
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Reno TA, Tarnus L, Tracy R, Landay AL, Sereti I, Apetrei C, Pandrea I. The Youngbloods. Get Together. Hypercoagulation, Complement, and NET Formation in HIV/SIV Pathogenesis. FRONTIERS IN VIROLOGY 2022. [DOI: 10.3389/fviro.2021.795373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chronic, systemic T-cell immune activation and inflammation (IA/INFL) have been reported to be associated with disease progression in persons with HIV (PWH) since the inception of the AIDS pandemic. IA/INFL persist in PWH on antiretroviral therapy (ART), despite complete viral suppression and increases their susceptibility to serious non-AIDS events (SNAEs). Increased IA/INFL also occur during pathogenic SIV infections of macaques, while natural hosts of SIVs that control chronic IA/INFL do not progress to AIDS, despite having persistent high viral replication and severe acute CD4+ T-cell loss. Moreover, natural hosts of SIVs do not present with SNAEs. Multiple mechanisms drive HIV-associated IA/INFL, including the virus itself, persistent gut dysfunction, coinfections (CMV, HCV, HBV), proinflammatory lipids, ART toxicity, comorbidities, and behavioral factors (diet, smoking, and alcohol). Other mechanisms could also significantly contribute to IA/INFL during HIV/SIV infection, notably, a hypercoagulable state, characterized by elevated coagulation biomarkers, including D-dimer and tissue factor, which can accurately identify patients at risk for thromboembolic events and death. Coagulation biomarkers strongly correlate with INFL and predict the risk of SNAE-induced end-organ damage. Meanwhile, the complement system is also involved in the pathogenesis of HIV comorbidities. Despite prolonged viral suppression, PWH on ART have high plasma levels of C3a. HIV/SIV infections also trigger neutrophil extracellular traps (NETs) formation that contribute to the elimination of viral particles and infected CD4+ T-cells. However, as SIV infection progresses, generation of NETs can become excessive, fueling IA/INFL, destruction of multiple immune cells subsets, and microthrombotic events, contributing to further tissue damages and SNAEs. Tackling residual IA/INFL has the potential to improve the clinical course of HIV infection. Therefore, therapeutics targeting new pathways that can fuel IA/INFL such as hypercoagulation, complement activation and excessive formation of NETs might be beneficial for PWH and should be considered and evaluated.
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Furtado JD, Ruotolo G, Nicholls SJ, Dullea R, Carvajal-Gonzalez S, Sacks FM. Pharmacological Inhibition of CETP (Cholesteryl Ester Transfer Protein) Increases HDL (High-Density Lipoprotein) That Contains ApoC3 and Other HDL Subspecies Associated With Higher Risk of Coronary Heart Disease. Arterioscler Thromb Vasc Biol 2021; 42:227-237. [PMID: 34937388 PMCID: PMC8785774 DOI: 10.1161/atvbaha.121.317181] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Supplemental Digital Content is available in the text. Plasma total HDL (high-density lipoprotein) is a heterogeneous mix of many protein-based subspecies whose functions and associations with coronary heart disease vary. We hypothesize that increasing HDL by CETP (cholesteryl ester transfer protein) inhibition failed to reduce cardiovascular disease risk, in part, because it increased dysfunctional subspecies associated with higher risk such as HDL that contains apoC3.
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Affiliation(s)
- Jeremy D. Furtado
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston MA (J.D.F., F.M.S.)
| | | | | | | | | | - Frank M. Sacks
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston MA (J.D.F., F.M.S.)
- Channing Laboratory, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA (F.M.S.)
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Aarsetøy R, Ueland T, Aukrust P, Michelsen AE, Leon de la Fuente R, Grundt H, Staines H, Nygaard O, Nilsen DWT. Complement component 7 is associated with total- and cardiac death in chest-pain patients with suspected acute coronary syndrome. BMC Cardiovasc Disord 2021; 21:496. [PMID: 34649504 PMCID: PMC8515738 DOI: 10.1186/s12872-021-02306-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 10/05/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Complement activation has been associated with atherosclerosis, atherosclerotic plaque destabilization and increased risk of cardiovascular events. Complement component 7 (CC7) binds to the C5bC6 complex which is part of the terminal complement complex (TCC/C5b-9). High-sensitivity C-reactive protein (hsCRP) is a sensitive marker of systemic inflammation and may reflect the increased inflammatory state associated with cardiovascular disease. AIM To evaluate the associations between CC7 and total- and cardiac mortality in patients hospitalized with chest-pain of suspected coronary origin, and whether combining CC7 with hsCRP adds prognostic information. METHODS Baseline levels of CC7 were related to 60-months survival in a prospective, observational study of 982 patients hospitalized with a suspected acute coronary syndrome (ACS) at 9 hospitals in Salta, Argentina. A cox regression model, adjusting for conventional cardiovascular risk factors, was fitted with all-cause mortality, cardiac death and sudden cardiac death (SCD) as the dependent variables. A similar Norwegian population of 871 patients was applied to test the reproducibility of results in relation to total death. RESULTS At follow-up, 173 patients (17.7%) in the Argentinean cohort had died, of these 92 (9.4%) were classified as cardiac death and 59 (6.0%) as SCD. In the Norwegian population, a total of 254 patients (30%) died. In multivariable analysis, CC7 was significantly associated with 60-months all-cause mortality [hazard ratio (HR) 1.26 (95% confidence interval (CI), 1.07-1.47) and cardiac death [HR 1.28 (95% CI 1.02-1.60)], but not with SCD. CC7 was only weakly correlated with hsCRP (r = 0.10, p = 0.002), and there was no statistically significant interaction between the two biomarkers in relation to outcome. The significant association of CC7 with total death was reproduced in the Norwegian population. CONCLUSIONS CC7 was significantly associated with all-cause mortality and cardiac death at 60-months follow-up in chest-pain patients with suspected ACS. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT01377402, NCT00521976.
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Affiliation(s)
- Reidun Aarsetøy
- Department of Clinical Science, University of Bergen, Bergen, Norway. .,Department of Cardiology, Stavanger University Hospital, P.O. Box 8100, 4068, Stavanger, Norway.
| | - Thor Ueland
- Rikshospitalet, Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
| | - Pål Aukrust
- Rikshospitalet, Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.,Rikshospitalet, Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Annika E Michelsen
- Rikshospitalet, Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
| | | | - Heidi Grundt
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Respiratory Medicine, Stavanger University Hospital, Stavanger, Norway
| | | | - Ottar Nygaard
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Cardiology, Haukeland University Hospital, Bergen, Norway
| | - Dennis W T Nilsen
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Cardiology, Stavanger University Hospital, P.O. Box 8100, 4068, Stavanger, Norway
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12
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Rawish E, Sauter M, Sauter R, Nording H, Langer HF. Complement, inflammation and thrombosis. Br J Pharmacol 2021; 178:2892-2904. [PMID: 33817781 DOI: 10.1111/bph.15476] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 12/30/2020] [Accepted: 01/09/2021] [Indexed: 12/14/2022] Open
Abstract
A mutual relationship exists between immune activation and mechanisms of thrombus formation. In particular, elements of the innate immune response such as the complement system can modulate platelet activation and subsequently thrombus formation. Several components of the complement system including C3 or the membrane attack complex have been reported to be associated with platelets and become functionally active in the micromilieu of platelet activation. The exact mechanisms how this interplay is regulated and its consequences for tissue inflammation, damage or recovery remain to be defined. This review addresses the current state of knowledge on this topic and puts it into context with diseases featuring both thrombosis and complement activation. LINKED ARTICLES: This article is part of a themed issue on Canonical and non-canonical functions of the complement system in health and disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.14/issuetoc.
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Affiliation(s)
- Elias Rawish
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Lübeck/Kiel, Lübeck, Germany.,University Hospital, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany
| | - Manuela Sauter
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany
| | - Reinhard Sauter
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany.,University Hospital, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany
| | - Henry Nording
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Lübeck/Kiel, Lübeck, Germany
| | - Harald F Langer
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Lübeck/Kiel, Lübeck, Germany.,University Hospital, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany
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13
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Hally KE, Holley AS, Kristono GA, Harding SA, Larsen PD. Immunoglobulin G levels predicts risk of recurrent adverse cardiovascular events in myocardial infarction patients. Acta Cardiol 2020; 75:497-502. [PMID: 31074689 DOI: 10.1080/00015385.2019.1611189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Patients with myocardial infarction (MI) are at an increased risk of experiencing recurrent major adverse cardiovascular events (MACE) but predicting MACE has remained challenging. Immunoglobulins are implicated in cardiovascular disease, although the predictive value of total immunoglobulin G (IgG) has not yet been evaluated in a secondary prevention setting. This study examined whether total IgG is predictive of MACE in an MI population, and how total IgG compared to the predictive value of C-reactive protein (CRP), an acute inflammatory marker. Methods: We conducted a case-control study with 40 MI subjects (cases) who experienced MACE within 1 year of their index admission. Cases were matched for age, sex, diabetes and presentation with 77 controls who did not have MACE. Pre-discharge plasma samples were analysed for total IgG and CRP. Results: We observed higher levels of total plasma IgG in MI subjects with MACE (24.9 (16.2-43.7) mg/mL) compared to controls (18.4 (9.1-37.3) mg/mL; p < 0.05). Higher levels of IgG were associated with increased risk of MACE in our MI population. MI subjects within quartiles 3 and 4 of total IgG had 6 times and 4 times, respectively, the rate of MACE compared to subjects in quartile 1. There was no difference in CRP levels between cases and controls (1.1 (0.5-3.0) vs. 1.9 (0.6-6.1) mg/mL, p = 0.10), and no relationship was observed between CRP and MACE. Conclusion: Pre-discharge IgG level was a better marker for predicting MACE post-MI than CRP, which had no predictive value in this study.
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Affiliation(s)
- Kathryn E. Hally
- Wellington Cardiovascular Research Group, Wellington, New Zealand
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Ana S. Holley
- Wellington Cardiovascular Research Group, Wellington, New Zealand
- Department of Surgery and Anaesthesia, University of Otago, Wellington, New Zealand
| | - Gisela A. Kristono
- Wellington Cardiovascular Research Group, Wellington, New Zealand
- Department of Surgery and Anaesthesia, University of Otago, Wellington, New Zealand
| | - Scott A. Harding
- Wellington Cardiovascular Research Group, Wellington, New Zealand
- Department of Cardiology, Wellington Hospital, Wellington, New Zealand
| | - Peter D. Larsen
- Wellington Cardiovascular Research Group, Wellington, New Zealand
- Department of Surgery and Anaesthesia, University of Otago, Wellington, New Zealand
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14
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Sacks FM, Liang L, Furtado JD, Cai T, Davidson WS, He Z, McClelland RL, Rimm EB, Jensen MK. Protein-Defined Subspecies of HDLs (High-Density Lipoproteins) and Differential Risk of Coronary Heart Disease in 4 Prospective Studies. Arterioscler Thromb Vasc Biol 2020; 40:2714-2727. [PMID: 32907368 DOI: 10.1161/atvbaha.120.314609] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE HDL (high-density lipoprotein) contains functional proteins that define single subspecies, each comprising 1% to 12% of the total HDL. We studied the differential association with coronary heart disease (CHD) of 15 such subspecies. Approach and Results: We measured plasma apoA1 (apolipoprotein A1) concentrations of 15 protein-defined HDL subspecies in 4 US-based prospective studies. Among participants without CVD at baseline, 932 developed CHD during 10 to 25 years. They were matched 1:1 to controls who did not experience CHD. In each cohort, hazard ratios for each subspecies were computed by conditional logistic regression and combined by meta-analysis. Higher levels of HDL subspecies containing alpha-2 macroglobulin, CoC3 (complement C3), HP (haptoglobin), or PLMG (plasminogen) were associated with higher relative risk compared with the HDL counterpart lacking the defining protein (hazard ratio range, 0.96-1.11 per 1 SD increase versus 0.73-0.81, respectively; P for heterogeneity <0.05). In contrast, HDL containing apoC1 or apoE were associated with lower relative risk compared with the counterpart (hazard ratio, 0.74; P=0.002 and 0.77, P=0.001, respectively). CONCLUSIONS Several subspecies of HDL defined by single proteins that are involved in thrombosis, inflammation, immunity, and lipid metabolism are found in small fractions of total HDL and are associated with higher relative risk of CHD compared with HDL that lacks the defining protein. In contrast, HDL containing apoC1 or apoE are robustly associated with lower risk. The balance between beneficial and harmful subspecies in a person's HDL sample may determine the risk of CHD pertaining to HDL and paths to treatment.
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Affiliation(s)
- Frank M Sacks
- Department of Nutrition (F.M.S., J.F.D., M.K.J., E.B.R.), Harvard T.H. Chan School of Public Health, Boston, MA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (E.B.R., F.M.S.)
| | - Liang Liang
- Department of Biostatistics (Z.H., T.C., L.L.), Harvard T.H. Chan School of Public Health, Boston, MA
| | - Jeremy D Furtado
- Department of Nutrition (F.M.S., J.F.D., M.K.J., E.B.R.), Harvard T.H. Chan School of Public Health, Boston, MA
| | - Tianxi Cai
- Department of Biostatistics (Z.H., T.C., L.L.), Harvard T.H. Chan School of Public Health, Boston, MA
| | - W Sean Davidson
- Department of Pathology and Laboratory Medicine, University of Cincinnati, OH (W.S.D.)
| | - Zeling He
- Department of Biostatistics (Z.H., T.C., L.L.), Harvard T.H. Chan School of Public Health, Boston, MA
| | | | - Eric B Rimm
- Department of Nutrition (F.M.S., J.F.D., M.K.J., E.B.R.), Harvard T.H. Chan School of Public Health, Boston, MA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (E.B.R., F.M.S.)
| | - Majken K Jensen
- Department of Nutrition (F.M.S., J.F.D., M.K.J., E.B.R.), Harvard T.H. Chan School of Public Health, Boston, MA.,Department of Epidemiology (M.K.J., E.B.R), Harvard T.H. Chan School of Public Health, Boston, MA
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15
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Karkhaneh M, Qorbani M, Ataie-Jafari A, Mohajeri-Tehrani MR, Asayesh H, Hosseini S. Association of thyroid hormones with resting energy expenditure and complement C3 in normal weight high body fat women. Thyroid Res 2019; 12:9. [PMID: 31666810 PMCID: PMC6813955 DOI: 10.1186/s13044-019-0070-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 10/03/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND A high body fat percentage has a specific effect on activation of the hypothalamic-pituitary-thyroid axis. On the other hand, a slight change in thyroid hormones can affect metabolism and body composition as well as immune function. This study aims to examine the relationship between adiposity, thyroid hormone levels and immunity by comparing resting energy expenditure (REE), serum thyroid hormone levels and complement C3 in normal-weight high body fat (normal weight obesity) women and normal-weight normal body fat women. METHODS In this case-control study, 40 women with normal body weight (BMI < 24.9 kg/m2) and body fat mass (FM) ≥ 30% (normal-weight obesity (NWO) group), and 30 non-obese women (BMI < 24.9 kg/m2) and FM < 30% (non-normal weight obesity (non-NWO) group) were recruited from a sport club in Tehran. Body composition was analyzed using bioimpedance analyzer. Blood samples were collected and analyzed for fasting serum concentration of thyroid hormones (including total T3 and total T4), thyroid-stimulating hormone (TSH), and serum complement C3. REE was measured by an indirect calorimetry. RESULTS Serum T3 and T4 and also complement C3 were higher in the NWO group than in the non-NWO group. Body fat percentages had significant positive correlation with T3 (r; 0.344, P < 0.05), T4 (r; 0.294, P < 0.05), and complement C3 (r; 0.417, P < 0.05). Serum T3 and T4 were also positively correlated with C3 concentration (r; 0.417, p < 0.001) and (r; 0.349, p < 0.05); respectively, but there was no significant correlation between TSH and C3. REE was not significantly different between the two groups. REE only had a significant positive correlation with fat-free mass (r; 0.421, P < 0.001). CONCLUSION An increase in body fat even in the presence of a normal body weight can be accompanied by the changes in thyroid function and inflammatory markers such as complement C3.
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Affiliation(s)
- Maryam Karkhaneh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Qorbani
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Asal Ataie-Jafari
- Department of Nutrition, Faculty of Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mohamad Reza Mohajeri-Tehrani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Asayesh
- Department of Medical Emergencies, Qom University of Medical Sciences, Qom, Iran
| | - Saeed Hosseini
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Hojatdost street, Naderi street, Keshavarz Blv, Tehran, Iran
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16
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Detsika MG, Myrtsi ED, Koulocheri SD, Haroutounian SA, Lianos EA, Roussos C. Induction of decay accelerating factor and membrane cofactor protein by resveratrol attenuates complement deposition in human coronary artery endothelial cells. Biochem Biophys Rep 2019; 19:100652. [PMID: 31193778 PMCID: PMC6541742 DOI: 10.1016/j.bbrep.2019.100652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 04/01/2019] [Accepted: 05/13/2019] [Indexed: 11/27/2022] Open
Abstract
The involvement of complement activation in various forms of cardiovascular disease renders it an important factor for disease progression and therapeutic intervention. The protective effect of resveratrol against cardiovascular disease via moderate red wine consumption has been established but the exact mechanisms are still under investigation. The current study utilised human coronary artery endothelial cells (HCAECs) in order to assess the extent to which the protective effect of resveratrol, at concentrations present in red wine, can be attributed to the upregulation of complement regulatory proteins through heme-oxygenase (HO)-1 induction. Resveratrol at concentrations as low as 0.001 μΜ increased HO-1 expression as well as membrane cofactor protein (MCP, CD46) and decay-accelerating factor (DAF, CD55) expression with no-effect on CD59. Silencing of HO-1 expression by HO-1 siRNAs abrogated both DAF and MCP protein expression with no effect on CD59. Resveratrol-mediated induction of DAF and MCP reduced C3b deposition following incubation of HCAECs with 10% normal human serum or normal rat serum as a source of complement. Incubation of HCAECs, with either a DAF blocking antibody or following transfection with HO-1 siRNAs, in the presence of 10% normal rat serum increased C3b deposition, indicating that both DAF and HO-1 are required for C3b reduction. These observations support a novel mechanism for the protective effect of resveratrol against cardiovascular disease and confirm the important role of HO-1 in the regulation of the complement cascade.
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Affiliation(s)
- Maria G Detsika
- First Department of Critical Care Medicine and Pulmonary Services, Thorax Foundation, Research Center of Intensive Care and Emergency Thoracic Medicine, Evangelismos Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Eleni D Myrtsi
- Department of Nutritional Physiology and Feeding, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
| | - Sofia D Koulocheri
- Department of Nutritional Physiology and Feeding, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
| | - Serkos A Haroutounian
- Department of Nutritional Physiology and Feeding, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
| | - Elias A Lianos
- First Department of Critical Care Medicine and Pulmonary Services, Thorax Foundation, Research Center of Intensive Care and Emergency Thoracic Medicine, Evangelismos Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Charis Roussos
- First Department of Critical Care Medicine and Pulmonary Services, Thorax Foundation, Research Center of Intensive Care and Emergency Thoracic Medicine, Evangelismos Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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17
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Meng X, Shen Y, Wang S, Xu X, Dang Y, Zhang M, Li L, Zhang J, Wang R, Li J. Complement component 3 (C3): An important role in grass carp (Ctenopharyngodon idella) experimentally exposed to Aeromonas hydrophila. FISH & SHELLFISH IMMUNOLOGY 2019; 88:189-197. [PMID: 30826411 DOI: 10.1016/j.fsi.2019.02.061] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/22/2019] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
Complement is traditionally recognized as part of the innate immune system, defending the host against the invasion of foreign pathogens. In complement system, C3 (complement component 3) is a central component. Therefore, research into C3 can help us better understand the functions of fish complement system. In this study, we detected the grass carp C3 (gcC3) mRNA expression in all sample tissues from healthy grass carp, which was highest in the liver, followed by the heart and the spleen, and lowest in the muscle, head kidney, trunk kidney, blood and intestine. After infection with Aeromonas hydrophila, gcC3 mRNA expression levels were significantly upregulated in the gill, liver, spleen, intestine, trunk kidney and head kidney. Interestingly, C3 protein levels were downregulated and subsequently upregulated in the liver and serum. Histologically, C3 protein at 24 h pi was over expressed in necrotic liver sites, and the liver index (LI) at this point was significantly higher than that of the control. These findings are indicated that C3 plays an important role in the immune response of grass carp after A. hydrophila infection, and C3 protein may play an assistant role in repairing liver tissues from A. hydrophila injury.
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Affiliation(s)
- Xinzhan Meng
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Yubang Shen
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Shentong Wang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Xiaoyan Xu
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Yunfei Dang
- Laboratory of Biochemistry and Molecular Biology, Ningbo University, Ningbo, PR China
| | - Meng Zhang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Lisen Li
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Jiahua Zhang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Rongquan Wang
- Key Laboratory of Conventional Freshwater Fish Breeding and Health Culture Technology Germplasm Resources, Suzhou Shenhang Eco-technology Development Limited Company, Suzhou, PR China
| | - Jiale Li
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.
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18
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The role of platelets in mediating a response to human influenza infection. Nat Commun 2019; 10:1780. [PMID: 30992428 PMCID: PMC6467905 DOI: 10.1038/s41467-019-09607-x] [Citation(s) in RCA: 234] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 03/20/2019] [Indexed: 02/07/2023] Open
Abstract
Influenza infection increases the incidence of myocardial infarction but the reason is unknown. Platelets mediate vascular occlusion through thrombotic functions but are also recognized to have immunomodulatory activity. To determine if platelet processes are activated during influenza infection, we collected blood from 18 patients with acute influenza infection. Microscopy reveals activated platelets, many containing viral particles and extracellular-DNA associated with platelets. To understand the mechanism, we isolate human platelets and treat them with influenza A virus. Viral-engulfment leads to C3 release from platelets as a function of TLR7 and C3 leads to neutrophil-DNA release and aggregation. TLR7 specificity is confirmed in murine models lacking the receptor, and platelet depletion models support platelet-mediated C3 and neutrophil-DNA release post-influenza infection. These findings demonstrate that the initial intrinsic defense against influenza is mediated by platelet–neutrophil cross-communication that tightly regulates host immune and complement responses but can also lead to thrombotic vascular occlusion. Influenza viremia is rare in human blood and not well studied. Here, the authors show that influenza can be found in human platelets and that platelet engulfment of influenza A results in TLR7-dependent C3 release, which in turn promotes neutrophil-DNA release and formation of platelet-DNA aggregates.
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19
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Barrachina MN, Calderón-Cruz B, Fernandez-Rocca L, García Á. Application of Extracellular Vesicles Proteomics to Cardiovascular Disease: Guidelines, Data Analysis, and Future Perspectives. Proteomics 2019; 19:e1800247. [PMID: 30467982 DOI: 10.1002/pmic.201800247] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/09/2018] [Indexed: 02/06/2023]
Abstract
Extracellular vesicles (EVs) are a heterogeneous population of vesicles composed of a lipid bilayer that carry a large repertoire of molecules including proteins, lipids, and nucleic acids. In this review, some guidelines for plasma-derived EVs isolation, characterization, and proteomic analysis, and the application of the above to cardiovascular disease (CVD) studies are provided. For EVs analysis, blood samples should be collected using a 21-gauge needle, preferably in citrate tubes, and plasma stored for up to 1 year at -80°, using a single freeze-thaw cycle. For proteomic applications, differential centrifugation (including ultracentrifugation steps) is a good option for EVs isolation. EVs characterization is done by transmission electron microscopy, particle enumeration techniques (nanoparticle-tracking analysis, dynamic light scattering), and flow cytometry. Regarding the proteomics strategy, a label-free and gel-free quantitative method is a good choice due to its accuracy and because it minimizes the amount of sample required for clinical applications. Besides the above, main EVs proteomic findings in cardiovascular-related diseases are presented and analyzed in this review, paying especial attention to overlapping results between studies. The latter might offer new insights into the clinical relevance and potential of novel EVs biomarkers identified to date in the context of CVD.
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Affiliation(s)
- Maria N Barrachina
- Platelet Proteomics Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Universidade Santiago de Compostela, Santiago de Compostela, 15782, Spain.,Instituto de Investigación, Sanitaria de Santiago (IDIS), Santiago de Compostela, 15706, Spain
| | - Beatriz Calderón-Cruz
- Platelet Proteomics Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Universidade Santiago de Compostela, Santiago de Compostela, 15782, Spain.,Instituto de Investigación, Sanitaria de Santiago (IDIS), Santiago de Compostela, 15706, Spain
| | - Lucía Fernandez-Rocca
- Clinical Analysis Laboratory, Maciel Hospital, Faculty of Chemistry, University of the Republic, Montevideo, 11000, Uruguay
| | - Ángel García
- Platelet Proteomics Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Universidade Santiago de Compostela, Santiago de Compostela, 15782, Spain.,Instituto de Investigación, Sanitaria de Santiago (IDIS), Santiago de Compostela, 15706, Spain
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20
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Copenhaver M, Yu CY, Hoffman RP. Complement Components, C3 and C4, and the Metabolic Syndrome. Curr Diabetes Rev 2019; 15:44-48. [PMID: 29663892 DOI: 10.2174/1573399814666180417122030] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 12/10/2017] [Accepted: 12/13/2017] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Increased systemic inflammation plays a significant role in the development of adult cardiometabolic diseases such as insulin resistance, dyslipidemia, atherosclerosis, and hypertension. The complement system is a part of the innate immune system and plays a key role in the regulation of inflammation. Of particular importance is the activation of complement components C3 and C4. C3 is produced primarily by the liver but is also produced in adipocytes, macrophages and endothelial cells, all of which are present in adipose tissues. Dietary fat and chylomicrons stimulate C3 production. Adipocytes in addition to producing C3 also have receptors for activated C3 and other complement components and thus also respond to as well as produce a target for complement. C3adesArg, also known as acylation stimulation factor, increases adipocyte triglyceride synthesis and release. These physiological effects play a significant role in the development of metabolic syndrome. Epidemiologically, obese adults and non-obese adults with cardiometabolic disease who are not obese have been shown to have increased complement levels. C4 levels also correlate with body mass index. Genetically, specific C3 polymorphisms have been shown to predict future cardiovascular events and. D decreased C4 long gene copy number is associated with increased longevity. CONCLUSION Future research is clearly needed to clarify the role of complement in the development of cardiovascular disease and mechanisms for its action. The complement system may provide a new area for intervention in the prevention of cardiometabolic diseases.
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Affiliation(s)
- Melanie Copenhaver
- Pediatric Endocrinology Fellow, Division of Pediatric Endocrinology, Department of Pediatrics, Nationwide Children's Hospital, OH 43205, United States
| | - Chack-Yung Yu
- Pediatric Endocrinology Fellow, Division of Pediatric Endocrinology, Department of Pediatrics, Nationwide Children's Hospital, OH 43205, United States
| | - Robert P Hoffman
- Pediatric Endocrinology Fellow, Division of Pediatric Endocrinology, Department of Pediatrics, Nationwide Children's Hospital, OH 43205, United States
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21
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Bao X, Borné Y, Johnson L, Muhammad IF, Persson M, Niu K, Engström G. Comparing the inflammatory profiles for incidence of diabetes mellitus and cardiovascular diseases: a prospective study exploring the 'common soil' hypothesis. Cardiovasc Diabetol 2018; 17:87. [PMID: 29895294 PMCID: PMC5996509 DOI: 10.1186/s12933-018-0733-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 06/06/2018] [Indexed: 12/15/2022] Open
Abstract
Background Chronic low-grade inflammation and associated insulin resistance and metabolic abnormalities have been proposed as ‘common soil’ for diabetes mellitus (DM) and cardiovascular disease (CVD). This paper aimed to investigate the inflammatory profiles of DM and CVD and to distinguish their shared and specific markers. Methods Based on the Malmö Diet and Cancer cohort, total and differential leukocyte counts were measured in 25,969 participants without previous DM or CVD and were studied in relation to incident DM (mean follow-up 17.4 ± 5.58 years) and incident CVD (i.e., coronary events, including fatal and nonfatal myocardial infarction, or stroke); mean follow-up 17.7 ± 5.46 years, using multivariable Cox regression models. Furthermore, plasma concentrations of another seven inflammatory markers were examined in relation to incident DM and incident CVD in a sub-cohort of 4658 participants. The associations of each inflammatory marker with incident DM versus incident CVD were compared using the Lunn–McNeil competing risks approach. In sensitivity analyses, those who developed both DM and CVD during follow-up were excluded. Results After adjustment for conventional risk factors, total and differential leukocyte counts, orosomucoid, and C-reactive protein were associated with an increased risk of both DM and CVD. Neutrophil to lymphocyte ratio, ceruloplasmin, alpha1-antitrypsin and soluble urokinase plasminogen activator receptor predicted increased risk of CVD but not DM, while haptoglobin and complement C3 showed the opposite pattern. In competing risks analyses, lymphocyte count and complement C3 had stronger associations with risk of DM than with risk of CVD (p for equal associations = 0.020 and 0.006). The reverse was true for neutrophil to lymphocyte ratio (p for equal associations = 0.025). Results were consistent in sensitivity analyses. Conclusions The results indicated substantial similarities in the inflammatory profiles associated with DM and CVD. However, there are also significant differences. These findings may help discriminate between individuals at elevated risk of DM and those at elevated risk of CVD, which is a prerequisite for targeted therapies. Electronic supplementary material The online version of this article (10.1186/s12933-018-0733-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xue Bao
- Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China. .,Department of Clinical Sciences, Lund University, CRC 60:13, Jan Waldenströms gata 35, 20502, Malmö, Sweden.
| | - Yan Borné
- Department of Clinical Sciences, Lund University, CRC 60:13, Jan Waldenströms gata 35, 20502, Malmö, Sweden
| | - Linda Johnson
- Department of Clinical Sciences, Lund University, CRC 60:13, Jan Waldenströms gata 35, 20502, Malmö, Sweden
| | - Iram Faqir Muhammad
- Department of Clinical Sciences, Lund University, CRC 60:13, Jan Waldenströms gata 35, 20502, Malmö, Sweden
| | - Margaretha Persson
- Department of Clinical Sciences, Lund University, CRC 60:13, Jan Waldenströms gata 35, 20502, Malmö, Sweden
| | - Kaijun Niu
- Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China
| | - Gunnar Engström
- Department of Clinical Sciences, Lund University, CRC 60:13, Jan Waldenströms gata 35, 20502, Malmö, Sweden
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22
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Maestro de la Calle G, Fernández-Ruiz M, López-Medrano F, Polanco N, González E, San Juan R, Ruiz-Merlo T, Origüen J, Paz-Artal E, Andrés A, Aguado JM. Post-transplant hypocomplementemia: A novel marker of cardiovascular risk in kidney transplant recipients? Atherosclerosis 2018; 269:204-210. [PMID: 29407595 DOI: 10.1016/j.atherosclerosis.2018.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 12/22/2017] [Accepted: 01/12/2018] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND AIMS Cardiovascular disease (CVD) is a leading cause of mortality after kidney transplantation (KT). The potential role of the complement system in the pathogenesis of post-transplant CVD remains unexplored. METHODS Serum complement (C3 and C4) levels were measured at baseline and post-transplant months 1 and 6 in 447 kT recipients. The study outcome was post-transplant atherothrombotic event (PAE), a composite of acute coronary syndrome, critical peripheral arterial disease, stroke and/or transient ischemic attack. RESULTS After a median follow-up of 4.2 years, 48 PAEs occurred in 43 patients (cumulative incidence: 9.6%; incidence rate: 2.6 events per 100 transplant-years). No differences were found in C3 and C4 levels at baseline or month 1 between patients with or without PAE. However, C3 levels at month 6 were significantly lower in patients developing PAE beyond that point (i.e., late PAE) (96.9 ± 22.3 vs. 109.6 ± 24.0 mg/dL; p = 0.013). The presence of C3 hypocomplementemia at month 6 was associated with a lower PAE-free survival (p = 0.002). After adjusting for conventional CVD risk factors and acute graft rejection, C3 hypocomplementemia at month 6 remained as an independent risk factor for late PAE in all the exploratory models (minimum hazard ratio: 3.24; p = 0.011). With respect to a model exclusively based on clinical variables, the inclusion of C3 levels at month 6 improved predictive capacity (areas under ROC curves: 0.788 and 0.812, respectively). CONCLUSIONS Post-transplant monitoring of serum C3 levels might be useful to identify KT recipients at increased risk of CVD.
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Affiliation(s)
- Guillermo Maestro de la Calle
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
| | - Mario Fernández-Ruiz
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain.
| | - Francisco López-Medrano
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
| | - Natalia Polanco
- Department of Nephrology, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
| | - Esther González
- Department of Nephrology, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
| | - Rafael San Juan
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
| | - Tamara Ruiz-Merlo
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
| | - Julia Origüen
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
| | - Estela Paz-Artal
- Department of Immunology, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
| | - Amado Andrés
- Department of Nephrology, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
| | - José María Aguado
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
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23
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Karkhaneh M, Qorbani M, Mohajeri-Tehrani MR, Hoseini S. Association of serum complement C3 with metabolic syndrome components in normal weight obese women. J Diabetes Metab Disord 2017; 16:49. [PMID: 29299442 PMCID: PMC5745599 DOI: 10.1186/s40200-017-0330-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 11/28/2017] [Indexed: 01/21/2023]
Abstract
BACKGROUND Increased serum complement C3 has been related to body fat mass, metabolic syndrome and chronic diseases. The purpose of this study was to evaluate the levels of C3 in the subjects of normal weight obese (hereafter NWO) as well as their possible relationships with metabolic syndrome and inflammation. METHODS In this case-control study, 40 obese women with normal weight (body mass index (BMI) = 18.5-24.9 kg/m2) and body fat percentage above 30% (fat mass (FM) > 30%) and 30 non-obese women (BMI = 18.5-24.9 kg/m2) and fat percentage less than 25% (FM < 25%) were selected as the study sample. Body composition was analyzed using Bio Impedance analyzer. Blood samples were then collected and analyzed for fasting serum concentration of lipid components of metabolic syndrome, insulin, serum complement C3 and High sensitivity C reactive protein (hsCRP). RESULTS Mean waist and hip circumferences in NWO was higher than non-NWO (74.78 ± 4.81 versus 70.76 ± 2.91 and 99.12 ± 4.32 versus 93.16 ± 2/91, respectively, P-value < 0.001). However, the mean waist-to-hip ratio did not differ significantly (p = 0.448). The mean fasting serum concentration of complement C3, hsCRP and insulin was higher in NWO compared to that in non-NWO (P-value < 0.05). Moreover, insulin sensitivity in NWO was lower than that in non-NWO (0.357 versus 0.374, p-value = 0.043). Moreover, a significant correlation was found between body fat percentage and fasting serum complement C3 and insulin concentration (r = 0.417 and r = 0.254, p-value < 0.005, respectively). CONCLUSION Obese women with normal body mass index but high body fat percentage have higher serum C3 and are at a higher risk for metabolic dysregulation and metabolic syndrome than the healthy non-obese subjects.
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Affiliation(s)
- Maryam Karkhaneh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Qorbani
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohamad Reza Mohajeri-Tehrani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Hoseini
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Hojatdost street, Naderi street, Keshavarz Blv., Tehran, Iran
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24
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Vlaicu SI, Tatomir A, Boodhoo D, Vesa S, Mircea PA, Rus H. The role of complement system in adipose tissue-related inflammation. Immunol Res 2017; 64:653-64. [PMID: 26754764 DOI: 10.1007/s12026-015-8783-5] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
As the common factor linking adipose tissue to the metabolic context of obesity, insulin resistance and atherosclerosis are associated with a low-grade chronic inflammatory status, to which the complement system is an important contributor. Adipose tissue synthesizes complement proteins and is a target of complement activation. C3a-desArg/acylation-stimulating protein stimulates lipogenesis and affects lipid metabolism. The C3a receptor and C5aR are involved in the development of adipocytes' insulin resistance through macrophage infiltration and the activation of adipose tissue. The terminal complement pathway has been found to be instrumental in promoting hyperglycemia-associated tissue damage, which is characteristic of the major vascular complications of diabetes mellitus and diabetic ketoacidosis. As a mediator of the effects of the terminal complement complex C5b-9, RGC-32 has an impact on energy expenditure as well as lipid and glucose metabolic homeostasis. All of this evidence, taken together, indicates an important role for complement activation in metabolic diseases.
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Affiliation(s)
- Sonia I Vlaicu
- Department of Neurology, University of Maryland, School of Medicine, 655 W Baltimore St, BRB 12-033, Baltimore, MD, 21201, USA.,Department of Internal Medicine, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Alexandru Tatomir
- Department of Neurology, University of Maryland, School of Medicine, 655 W Baltimore St, BRB 12-033, Baltimore, MD, 21201, USA.,Research Service, Veterans Administration Maryland Health Care System, Baltimore, MD, USA
| | - Dallas Boodhoo
- Department of Neurology, University of Maryland, School of Medicine, 655 W Baltimore St, BRB 12-033, Baltimore, MD, 21201, USA
| | - Stefan Vesa
- Department of Pharmacology, Toxicology and Clinical Pharmacology, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Petru A Mircea
- Department of Internal Medicine, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Horea Rus
- Department of Neurology, University of Maryland, School of Medicine, 655 W Baltimore St, BRB 12-033, Baltimore, MD, 21201, USA. .,Research Service, Veterans Administration Maryland Health Care System, Baltimore, MD, USA. .,Veterans Administration Multiple Sclerosis Center of Excellence, Baltimore, MD, USA.
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25
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Amor AJ, Ortega E, Perea V, Cofán M, Sala-Vila A, Nuñez I, Gilabert R, Ros E. Relationship Between Total Serum Bilirubin Levels and Carotid and Femoral Atherosclerosis in Familial Dyslipidemia. Arterioscler Thromb Vasc Biol 2017; 37:2356-2363. [DOI: 10.1161/atvbaha.117.310071] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 10/09/2017] [Indexed: 01/09/2023]
Abstract
Objective—
Bilirubin is a potent antioxidant that has been inversely related to cardiovascular disease. There is little information on serum total bilirubin (TB) in relation to atherosclerosis in familial dyslipidemia. We assessed the association between TB and carotid and femoral atherosclerosis in this high-risk group.
Approach and Results—
We evaluated 464 individuals with familial dyslipidemia (56% men; median age, 48 years), 322 with familial hypercholesterolemia, and 142 with familial combined hyperlipidemia. Carotid and femoral arteries were imaged bilaterally with a standardized ultrasonographic protocol. Mean and maximum intima-media thickness and plaque presence (≥1.2 mm) and height were recorded. Cross-sectional associations between TB and atherosclerosis variables were investigated in multivariable-adjusted models, including lipid values and hypolipidemic drug use. Inflammatory markers (C-reactive protein, total leukocyte count, and lipoprotein[a]) were also determined. Increasing TB levels were associated with decreasing intima-media thickness of all carotid segments (
P
<0.05, all). TB also related to carotid plaque, present in 78% of individuals, and to plaque burden (≥3 plaques), with odds ratios (95% confidence interval) 0.59 (0.36–0.98) and 0.57 (0.34–0.96) for each increase of 0.5 mg in TB, respectively. Findings were confirmed in a validation cohort of 177 subjects with nonfamilial dyslipidemia. Only the familial combined hyperlipidemia group, with higher inflammation-related markers, showed an inverse association between TB and femoral plaque height (β=−0.183;
P
=0.030).
Conclusions—
TB was inversely and independently associated with carotid plaque burden in familial and nonfamilial dyslipidemia. These findings support the use of TB as a biomarker of atherosclerosis in this high-risk group.
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Affiliation(s)
- Antonio J. Amor
- From the Endocrinology and Nutrition Service, Institut d’Investigacions Biomèdiques August Pi Sunyer, Hospital Clínic, Barcelona, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Service of Endocrinology, Hospital Universitari Mútua de Terrassa, Spain (V.P.); and Vascular Unit, Centre de Diagnòstic per l’Imatge, Institut d’Investigacions Biomèdiques
| | - Emilio Ortega
- From the Endocrinology and Nutrition Service, Institut d’Investigacions Biomèdiques August Pi Sunyer, Hospital Clínic, Barcelona, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Service of Endocrinology, Hospital Universitari Mútua de Terrassa, Spain (V.P.); and Vascular Unit, Centre de Diagnòstic per l’Imatge, Institut d’Investigacions Biomèdiques
| | - Verónica Perea
- From the Endocrinology and Nutrition Service, Institut d’Investigacions Biomèdiques August Pi Sunyer, Hospital Clínic, Barcelona, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Service of Endocrinology, Hospital Universitari Mútua de Terrassa, Spain (V.P.); and Vascular Unit, Centre de Diagnòstic per l’Imatge, Institut d’Investigacions Biomèdiques
| | - Montserrat Cofán
- From the Endocrinology and Nutrition Service, Institut d’Investigacions Biomèdiques August Pi Sunyer, Hospital Clínic, Barcelona, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Service of Endocrinology, Hospital Universitari Mútua de Terrassa, Spain (V.P.); and Vascular Unit, Centre de Diagnòstic per l’Imatge, Institut d’Investigacions Biomèdiques
| | - Aleix Sala-Vila
- From the Endocrinology and Nutrition Service, Institut d’Investigacions Biomèdiques August Pi Sunyer, Hospital Clínic, Barcelona, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Service of Endocrinology, Hospital Universitari Mútua de Terrassa, Spain (V.P.); and Vascular Unit, Centre de Diagnòstic per l’Imatge, Institut d’Investigacions Biomèdiques
| | - Isabel Nuñez
- From the Endocrinology and Nutrition Service, Institut d’Investigacions Biomèdiques August Pi Sunyer, Hospital Clínic, Barcelona, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Service of Endocrinology, Hospital Universitari Mútua de Terrassa, Spain (V.P.); and Vascular Unit, Centre de Diagnòstic per l’Imatge, Institut d’Investigacions Biomèdiques
| | - Rosa Gilabert
- From the Endocrinology and Nutrition Service, Institut d’Investigacions Biomèdiques August Pi Sunyer, Hospital Clínic, Barcelona, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Service of Endocrinology, Hospital Universitari Mútua de Terrassa, Spain (V.P.); and Vascular Unit, Centre de Diagnòstic per l’Imatge, Institut d’Investigacions Biomèdiques
| | - Emilio Ros
- From the Endocrinology and Nutrition Service, Institut d’Investigacions Biomèdiques August Pi Sunyer, Hospital Clínic, Barcelona, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain (A.J.A., E.O., M.C., A.S.-V., E.R.); Service of Endocrinology, Hospital Universitari Mútua de Terrassa, Spain (V.P.); and Vascular Unit, Centre de Diagnòstic per l’Imatge, Institut d’Investigacions Biomèdiques
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26
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Hertle E, Arts ICW, Kallen CJHVD, Feskens EJM, Schalkwijk CG, Stehouwer CDA, Greevenbroek MMJV. The alternative complement pathway is longitudinally associated with adverse cardiovascular outcomes. Thromb Haemost 2017; 115:446-57. [DOI: 10.1160/th15-05-0439] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 09/08/2015] [Indexed: 01/01/2023]
Abstract
SummaryThe alternative pathway of complement activation is highly reactive and can be activated spontaneously in the vasculature. Activation may contribute to vascular damage and development of cardiovascular disease (CVD). We aimed to investigate functional components of the alternative pathway in cardiovascular risk. We studied 573 individuals who were followed-up for seven years. At baseline, we measured the enhancer properdin; the rate-limiting protease factor D (FD); and a marker of systemic activation, Bb. Using generalised estimating equations, we investigated their longitudinal associations with cardiovascular events (CVE, N=89), CVD (N=159), low-grade inflammation (LGI), endothelial dysfunction (ED) and carotid intima-media thickness (cIMT). Furthermore, we investigated associations with incident CVE (N=39) and CVD (N=73) in 342 participants free of CVD at baseline. CVE included myocardial infarction, stroke, cardiac angioplasty and/or cardiac bypass. CVD additionally included ischaemia on an electrocardiogram and/or ankle-brachial index < 0.9. In adjusted analyses, properdin was positively associated with CVE (per 1SD, longitudinal OR=1.36 [1.07; 1.74], OR for incident CVE=1.53 [1.06; 2.20]), but not with CVD. Properdin was also positively associated with ED (β=0.13 [95 %CI 0.06; 0.20]), but not with LGI or cIMT. FD and Bb were positively associated with LGI (per 1SD, FD: β=0.21 [0.12; 0.29], Bb: β=0.14 [0.07; 0.21]), and ED (FD: β=0.20 [0.11; 0.29], Bb: β=0.10 [0.03; 0.18]), but not with cIMT, CVE or CVD. Taken together, this suggests that the alternative complement pathway contributes to processes of vascular damage, and that in particular a high potential to enhance alternative pathway activation may promote unfavourable cardiovascular outcomes in humans.Supplementary Material to this article is available online at www.thrombosis-online.com.
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27
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Phillips CM, Dillon CB, Perry IJ. Does replacing sedentary behaviour with light or moderate to vigorous physical activity modulate inflammatory status in adults? Int J Behav Nutr Phys Act 2017; 14:138. [PMID: 29020958 PMCID: PMC5637054 DOI: 10.1186/s12966-017-0594-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 10/03/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Sedentary behaviour, obesity and insulin resistance are associated with pro-inflammatory status. Limited data on whether physical activity modulates inflammatory status and counteracts obesity and insulin resistance associated low-grade inflammation exist. Our objective was to investigate associations between objectively measured physical activity and inflammatory status, and specifically whether substituting daily sedentary behaviour with light activity or moderate to vigorous physical activity (MVPA), is associated with beneficial alterations to the inflammatory profile among middle-aged adults and those at increased cardiometabolic risk (obese and insulin resistant subjects). METHODS Data are from a sub-sample of the Mitchelstown cohort; a population-based cross-sectional sample of 2047 Irish adults. Physical activity intensity and duration were measured in 396 participants for 7-consecutive days using the GENEActiv accelerometer. Isotemporal regression analysis examined the associations between replacing 30 min per day of sedentary behaviour with equal amounts of light activity and MVPA on inflammatory factors (serum acute-phase reactants, adipocytokines, pro-inflammatory cytokines and white blood cells (WBC)). RESULTS Reallocating 30 min of sedentary time with MVPA was associated with a more favourable inflammatory profile characterized by higher adiponectin and lower complement component C3 (C3), leptin, interleukin 6 (IL-6) and WBC concentrations (P < 0.05). No significant effects were noted with substitution of sedentary time with light activity. Among the obese subjects replacing sedentary behaviour with an equivalent amount of MVPA was associated with lower WBC counts (P < 0.05); no associations were detected among the insulin resistant (HOMA-IR >75th percentile) subjects. Among the non-obese and non-insulin resistant subjects substituting 30 min of sedentary behaviour with MVPA was associated with decreased C3, IL-6 and WBC concentrations. CONCLUSIONS Replacing sedentary behaviour with MVPA modulates pro-inflammatory status. These findings, which highlight the need for the developing randomized trials aimed at lowering cardiometabolic risk, warrant further investigation.
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Affiliation(s)
- Catherine M Phillips
- HRB Centre for Diet and Health Research, School of Public Health, Western Gateway Building, University College Cork, Cork, Ireland. .,HRB Centre for Diet and Health Research, School of Public Health, Physiotherapy and Sports Science, Woodview House, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Christina B Dillon
- HRB Centre for Diet and Health Research, School of Public Health, Western Gateway Building, University College Cork, Cork, Ireland
| | - Ivan J Perry
- HRB Centre for Diet and Health Research, School of Public Health, Western Gateway Building, University College Cork, Cork, Ireland
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28
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Meeuwsen JAL, van Duijvenvoorde A, Gohar A, Kozma MO, van de Weg SM, Gijsberts CM, Haitjema S, Björkbacka H, Fredrikson GN, de Borst GJ, den Ruijter HM, Pasterkamp G, Binder CJ, Hoefer IE, de Jager SCA. High Levels of (Un)Switched Memory B Cells Are Associated With Better Outcome in Patients With Advanced Atherosclerotic Disease. J Am Heart Assoc 2017; 6:e005747. [PMID: 28882820 PMCID: PMC5634255 DOI: 10.1161/jaha.117.005747] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 07/07/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Atherosclerosis is an inflammatory lipid disorder and the main underlying pathology of acute ischemic events. Despite a vast amount of data from murine atherosclerosis models, evidence of B-cell involvement in human atherosclerotic disease is limited. We therefore investigated the association of circulating B-cell subtypes with the occurrence of secondary cardiovascular events in advanced atherosclerotic disease. METHODS AND RESULTS This cohort study consists of 168 patients who were included in the Athero-Express biobank between 2009 and 2011. Before surgery, peripheral blood mononuclear cells were isolated and stored in liquid nitrogen. After gentle thawing of the peripheral blood mononuclear cells, different B-cell subtypes including naïve, (un)switched memory, and CD27+CD43+ B1-like B cells, were analyzed by flow cytometry. Univariable and multivariable Cox proportional hazard models were used to analyze associations between B-cell subtypes, circulating antibodies and secondary cardiovascular manifestations during the 3-year follow-up period. Mean age was 70.1±9.6 years, males represented 62.8% of the population, and 54 patients had secondary manifestations during follow-up. High numbers of unswitched memory cells were protective against secondary outcome (hazard ratio, 0.30 [95% CI, 0.13-0.69]; P<0.01). Similar results were obtained for the switched memory cells that also showed to be protective against secondary outcome (hazard ratio, 0.33 [95% CI, 0.14-0.77]; P=0.01). CONCLUSIONS A high number of (un)switched memory B cells is associated with better outcome following carotid artery endarterectomy. These findings suggest a potential role for B-cell subsets in prediction and prevention of secondary cardiovascular events in patients with atherosclerosis.
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Affiliation(s)
- John A L Meeuwsen
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Amerik van Duijvenvoorde
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Aisha Gohar
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Maria O Kozma
- Department of Laboratory Medicine, Medical University of Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Sander M van de Weg
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Crystel M Gijsberts
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Saskia Haitjema
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Harry Björkbacka
- Department of Clinical Sciences, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Gunilla N Fredrikson
- Department of Clinical Sciences, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Gert J de Borst
- Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Hester M den Ruijter
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Gerard Pasterkamp
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
- Laboratory for Clinical Chemistry and Haematology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Christoph J Binder
- Department of Laboratory Medicine, Medical University of Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Imo E Hoefer
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
- Laboratory for Clinical Chemistry and Haematology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Saskia C A de Jager
- Laboratory for Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
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Muhammad IF, Borné Y, Östling G, Kennbäck C, Gottsäter M, Persson M, Nilsson PM, Engström G. Acute phase proteins as prospective risk markers for arterial stiffness: The Malmö Diet and Cancer cohort. PLoS One 2017; 12:e0181718. [PMID: 28759613 PMCID: PMC5536304 DOI: 10.1371/journal.pone.0181718] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 07/06/2017] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Arterial stiffness plays a significant role in the development and progression of adverse cardiovascular events and all-cause mortality. This observational study aims to explore the relationship between six acute phase proteins namely, ceruloplasmin, alpha-1-antitrypsin, orosomucoid, haptoglobin, complement C3 and C-reactive protein (CRP), and carotid-femoral pulse wave velocity (c-f PWV) in a population-based cohort, and to also explore the effect of low-grade inflammation on the relationship between diabetes and c-f PWV. METHOD The study consisted of participants from the Malmö Diet and Cancer study with data from baseline examinations (1991-1994) and follow-up examinations (2007-2012). Arterial stiffness was measured at follow-up by determining c-f PWV. After excluding participants with missing data, the total study population included 2338 subjects. General linear models were used to assess the relationship between baseline acute phase proteins and c-f PWV. RESULTS After adjusting for traditional risk factors the participants in the 4th quartile vs 1st quartile of alpha-1-antitrypsin (geometric mean: 10.32 m/s vs 10.04 m/s) (p<0.05), C3 (10.35 m/s vs 10.06 m/s) (p<0.05) and CRP (10.37 m/s vs 9.96 m/s) (p<0.001) showed significant association with c-f PWV. Diabetes at follow-up was also associated with high c-f PWV, however, this relationship was independent of low grade inflammation. CONCLUSION Alpha-1-antitrypsin, C3 and CRP are associated with arterial stiffness. The results indicate that low grade inflammation is associated with arterial stiffness in addition to established cardiovascular risk factors.
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Affiliation(s)
| | - Yan Borné
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Gerd Östling
- Department of Clinical Sciences, Lund University, Malmö, Sweden
- Skåne University Hospital, Malmö, Sweden
| | | | - Mikael Gottsäter
- Department of Clinical Sciences, Lund University, Malmö, Sweden
- Skåne University Hospital, Malmö, Sweden
| | - Margaretha Persson
- Department of Clinical Sciences, Lund University, Malmö, Sweden
- Skåne University Hospital, Malmö, Sweden
| | - Peter M. Nilsson
- Department of Clinical Sciences, Lund University, Malmö, Sweden
- Skåne University Hospital, Malmö, Sweden
| | - Gunnar Engström
- Department of Clinical Sciences, Lund University, Malmö, Sweden
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Christiansen MK, Larsen SB, Nyegaard M, Neergaard-Petersen S, Ajjan R, Würtz M, Grove EL, Hvas AM, Jensen HK, Kristensen SD. Coronary artery disease-associated genetic variants and biomarkers of inflammation. PLoS One 2017; 12:e0180365. [PMID: 28686695 PMCID: PMC5501546 DOI: 10.1371/journal.pone.0180365] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 06/14/2017] [Indexed: 01/24/2023] Open
Abstract
INTRODUCTION Genetic constitution and inflammation both contribute to development of coronary artery disease (CAD). Several CAD-associated single-nucleotide polymorphisms (SNPs) have recently been identified, but their functions are largely unknown. We investigated the associations between CAD-associated SNPs and five CAD-related inflammatory biomarkers. METHODS We genotyped 45 CAD-associated SNPs in 701 stable CAD patients in whom levels of high-sensitivity C-reactive protein (hsRCP), interleukin-6, calprotectin, fibrinogen and complement component 3 levels had previously been measured. A genetic risk score was calculated to assess the combined risk associated with all the genetic variants. A multiple linear regression model was used to assess associations between the genetic risk score, single SNPs, and the five inflammatory biomarkers. RESULTS The minor allele (G) (CAD risk allele) of rs2075650 (TOMM40/APOE) was associated with lower levels of high-sensitivity C-reactive protein (effect per risk allele: -0.37 mg/l [95%CI -0.56 to -0.18 mg/l]). The inflammatory markers tested showed no association with the remaining 44 SNPs or with the genetic risk score. CONCLUSIONS In stable CAD patients, the risk allele of a common CAD-associated marker at the TOMM40/APOE locus was associated with lower hsCRP levels. No other genetic variants or the combined effect of all variants were associated with the five inflammatory biomarkers.
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Affiliation(s)
- Morten Krogh Christiansen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
- Faculty of Health, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Sanne Bøjet Larsen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
- Faculty of Health, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Mette Nyegaard
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | | | - Ramzi Ajjan
- Leeds Institute for Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds, United Kingdom
| | - Morten Würtz
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Erik Lerkevang Grove
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
- Faculty of Health, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Anne-Mette Hvas
- Faculty of Health, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Henrik Kjærulf Jensen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
- Faculty of Health, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Steen Dalby Kristensen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
- Faculty of Health, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Park HJ, Lee HS. Monocyte chemoattractant protein-1 polymorphism interaction with spirulina immunomodulatory effects in healthy Korean elderly: A 16 week, double-blind randomized clinical trial. Nutr Res Pract 2017; 11:290-299. [PMID: 28765775 PMCID: PMC5537538 DOI: 10.4162/nrp.2017.11.4.290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/25/2017] [Accepted: 04/11/2017] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND/OBJECTIVES Spirulina is a known a functional food related to lipid profiles, immune functions, and antioxidant capacity. Circulating monocyte chemoattractant protein-1 (MCP-1) level is associated with inflammation markers. Single nucleotide polymorphism in the MCP-1 promoter region -2518 have been identified and shown to affect gene transcription. Gene variation may also impact functional food supplementary effects. The current study investigated the interaction of MCP-1 -2518 polymorphism with spirulina supplements on anti-inflammatory capacity in Korean elderly. SUBJECTS/METHODS After genotyping, healthy elderly subjects (n = 78) were included in a randomized, double blind, and placebo controlled study. Baseline characteristic, body composition, and dietary intake were measured twice (baseline vs. week 16). For 16 weeks, subjects consumed 8 g either spirulina or placebo daily. Plasma MCP-1, interleukin (IL) -2, IL-6, tumor necrosis factor (TNF)-α, complement (C) 3, immunoglobulin (Ig) G, and Ig A concentrations and lymphocyte proliferation rate (LPR) were analyzed as inflammatory markers. RESULTS In the placebo group with A/A genotype, MCP-1 level was significantly increased, but the spirulina group with A/A genotype was unchanged. IL-2 was significantly increased only in subjects with spirulina supplementation. TNF-α was significantly reduced in subjects with the G carrier. C3 was significantly increased in the placebo group, particularly when A/A increased more than G, but not when spirulina was ingested. LPR was significantly different only in subjects with A/A genotype; there was a significant increase in phytohemagglutinin and lipopolysaccharide induced LPR in the spirulina group. CONCLUSION In healthy Korean elderly, spirulina supplementation may influence different inflammatory markers by the MCP-1 genotype. These results may be useful for customized dietary guidelines to improve immune function in Koreans.
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Affiliation(s)
- Hee Jung Park
- Department of Foods and Nutrition, Kookmin University, Seoul 02707, Korea
| | - Hyun Sook Lee
- Department of Food Science and Nutrition, Dongseo University, 47 Jurye-ro, Sasang-gu, Busan 47011, Korea
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Downregulation of the Complement Cascade In Vitro, in Mice and in Patients with Cardiovascular Disease by the BET Protein Inhibitor Apabetalone (RVX-208). J Cardiovasc Transl Res 2017; 10:337-347. [PMID: 28567671 PMCID: PMC5585290 DOI: 10.1007/s12265-017-9755-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 05/17/2017] [Indexed: 12/11/2022]
Abstract
Apabetalone (RVX-208) is an epigenetic regulator developed to treat cardiovascular disease (CVD) that targets BET proteins. Through transcriptional regulation RVX-208 modulates pathways that underlie CVD including reverse cholesterol transport, vascular inflammation, coagulation, and complement. Using transcriptomics and proteomics we show that complement is one of the top pathways downregulated by RVX-208 in primary human hepatocytes (PHH) and in plasma from CVD patients. RVX-208 reduces basal and cytokine-driven expression of complement factors in PHH and in chimeric mice with humanized livers. Plasma proteomics of CVD patients shows that RVX-208 decreases complement proteins and regulators, including complement activators SAP and CRP. Circulating activated fragments C5a, C3b, and C5b-C6 are reduced by 51, 32, and 10%, respectively, indicating decreased activity of complement in patients. As complement components are linked to CVD and metabolic syndrome, including major acute cardiac events, modulating their levels and activity by RVX-208 may alleviate risks associated with these diseases.
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Genome-wide methylation profiles in coronary artery ectasia. Clin Sci (Lond) 2017; 131:583-594. [PMID: 28143891 DOI: 10.1042/cs20160821] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 01/13/2017] [Accepted: 01/30/2017] [Indexed: 12/17/2022]
Abstract
Coronary artery ectasia (CAE) is a disease characterized by abnormally dilated coronary arteries. The mechanism of CAE remains unclear, and its treatment is limited. Previous studies have shown that risk factors for CAE were related to changes in DNA methylation. However, no systematic investigation of methylation profiles has been performed. Therefore, we compared methylation profiles between 12 CAE patients and 12 propensity-matched individuals with normal coronary arteries using microarrays. Wilcoxon's rank sum tests revealed 89 genes with significantly different methylation levels (P<0.05 and Δβ > |0.1|). Functional characterization using the DAVID database and gene set enrichment analysis indicated that these genes were involved in immune and inflammatory responses. Of these genes 6 were validated in 29 CAE patients and 87 matched individuals with CAE, using pyro-sequencing. TLR6 and NOTCH4 showed significant differences in methylation between the two groups, and lower protein levels of toll-like receptor 6 (TLR6) were detected in CAE patients. In conclusion, this genome-wide analysis of methylation profiles in CAE patients showed that significant changes in both methylation and expression of TLR6 deserve further study to elucidate their roles in CAE.
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de Vries MA, Trompet S, Mooijaart SP, Smit RAJ, Böhringer S, Castro Cabezas M, Jukema JW. Complement receptor 1 gene polymorphisms are associated with cardiovascular risk. Atherosclerosis 2016; 257:16-21. [PMID: 28033544 PMCID: PMC7094315 DOI: 10.1016/j.atherosclerosis.2016.12.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/27/2016] [Accepted: 12/14/2016] [Indexed: 11/30/2022]
Abstract
Background and aims Inflammation plays a key role in atherosclerosis. The complement system is involved in atherogenesis, and the complement receptor 1 (CR1) plays a role facilitating the clearance of immune complexes from the circulation. Limited evidence suggests that CR1 may be involved in cardiovascular disease. We investigated the relationship between CR1 gene polymorphisms and cardiovascular risk. Methods Single nucleotide polymorphisms (SNPs) within the CR1 region (n = 73) on chromosome 1 were assessed in 5244 participants in PROSPER (PROspective Study of Pravastatin in the Elderly at Risk) (mean age 75.3 years), who had been randomized to pravastatin 40 mg/day or placebo and followed for a mean of 3.2 years. Logistic regression, adjusted for gender, age, country and use of pravastatin, was used to assess the association between the SNPs and cardiovascular disease. Results All 73 SNPs within the genomic region of the CR1 gene on chromosome 1 were extracted. In this region, strong LD was present leading to the occurrence of two haploblocks. Twelve of the 73 investigated CR1 SNPs were significantly associated with the risk of fatal or nonfatal myocardial infarction (all p < 0.05). Moreover, most of the associated SNPs were also associated with levels of serum C-reactive protein (CRP). The global p-value for the tail strength method to control for multiple testing was 0.0489, implying that the null hypothesis of no associated SNPs can be rejected. Conclusions These data indicate that genetic variation within the CR1 gene is associated with inflammation and the risk of incident coronary artery disease. The complement receptor 1 (CR1) may be involved in atherosclerosis. 12 SNPs within the CR1 region were associated with myocardial infarction. 7 SNPs were also associated with levels of C-reactive protein. These results imply that CR1 may be involved in atherogenesis.
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Affiliation(s)
- Marijke A de Vries
- Department of Internal Medicine, Center for Diabetes and Vascular Medicine, Franciscus Gasthuis, Rotterdam, The Netherlands.
| | - Stella Trompet
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands; Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Simon P Mooijaart
- Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands; Institute of Evidence Based Medicine at Old Age, Leiden, The Netherlands
| | - Roelof A J Smit
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands; Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Stefan Böhringer
- Department of Medical Biostatistics, Leiden University Medical Center, Leiden, The Netherlands
| | - Manuel Castro Cabezas
- Department of Internal Medicine, Center for Diabetes and Vascular Medicine, Franciscus Gasthuis, Rotterdam, The Netherlands
| | - J Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
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van Greevenbroek MMJ, Schalkwijk CG, Stehouwer CDA. Dysfunctional adipose tissue and low-grade inflammation in the management of the metabolic syndrome: current practices and future advances. F1000Res 2016; 5. [PMID: 27803798 PMCID: PMC5070595 DOI: 10.12688/f1000research.8971.1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/10/2016] [Indexed: 12/12/2022] Open
Abstract
The ongoing worldwide obesity epidemic makes the metabolic syndrome an increasingly important entity. In this review, we provide a short background on the metabolic syndrome, we discuss recent developments in the three main options that have been identified for intervention in the metabolic syndrome, i.e. lifestyle and surgical and pharmacological interventions, and we focus on different views in the literature and also include our own viewpoints on the metabolic syndrome. In addition, we discuss some emerging treatment targets for adipose tissue dysfunction and low-grade inflammation, i.e. activation of the inflammasome and the complement system, and consider some selected opportunities for intervention in these processes.
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Affiliation(s)
- Marleen M J van Greevenbroek
- Maastricht University Medical Center, Maastricht, 6229 ER, Netherlands; CARIM School for Cardiovascular Diseases, Maastricht, 6229 ER, Netherlands
| | - Casper G Schalkwijk
- Maastricht University Medical Center, Maastricht, 6229 ER, Netherlands; CARIM School for Cardiovascular Diseases, Maastricht, 6229 ER, Netherlands
| | - Coen D A Stehouwer
- Maastricht University Medical Center, Maastricht, 6229 ER, Netherlands; CARIM School for Cardiovascular Diseases, Maastricht, 6229 ER, Netherlands; Academic Hospital Maastricht, Maastricht, 6229 HX, Netherlands
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Engström G, Hedblad B, Janzon L, Lindgärde F. Complement C3 and C4 in plasma and incidence of myocardial infarction and stroke: a population-based cohort study. ACTA ACUST UNITED AC 2016; 14:392-7. [PMID: 17568238 DOI: 10.1097/01.hjr.0000244582.30421.b2] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Complement factor C3 and C4 have been associated with atherosclerosis and cardiovascular risk factors. This study explored whether plasma levels of C3 and C4 are risk factors for the incidence of cardiovascular disease (CVD). DESIGN A population-based prospective study of 5850 initially healthy men, 28-61 years old at baseline. METHODS Plasma levels of C3 and C4 were analysed at the baseline examination. The incidence of coronary events (i.e. fatal or non-fatal myocardial infarction), ischaemic stroke and cardiovascular events (i.e. myocardial infarction, ischaemic stroke or cardiovascular death) was studied over 18 years of follow-up. RESULTS Adjusted for age, C3 in the fourth quartile (versus the first quartile) was associated with an increased incidence of coronary events [relative risk (RR) 1.54, 95% confidence interval (CI) 1.2-1.9], cardiovascular events (RR 1.56, 95% CI 1.3-1.9), and non-significantly with the incidence of ischaemic stroke (RR 1.31, 95% CI 0.89-1.8). However, after adjustments for smoking, body mass index (BMI), cholesterol, diabetes and systolic blood pressure, these relationships were completely attenuated and non-significant. The relationships were similar for C4 concentrations within the normal range. However, for men with C4 in the top 10% of the distribution (>0.34 g/l), a significantly increased incidence of coronary events was found, which persisted after adjustments for risk factors. CONCLUSION C3 and C4 show substantial correlations with cardiovascular risk factors, including blood pressure, BMI, and lipids. This relationship accounts for the increased incidence of CVD in men with high C3 levels. However, very high C4 levels may be associated with the incidence of CVD, independently of traditional cardiovascular risk factors.
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Affiliation(s)
- Gunnar Engström
- Lund University, Department of Clinical Science, Malmö University Hospital, Malmö, Sweden.
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Khamis RY, Hughes AD, Caga-Anan M, Chang CL, Boyle JJ, Kojima C, Welsh P, Sattar N, Johns M, Sever P, Mayet J, Haskard DO. High Serum Immunoglobulin G and M Levels Predict Freedom From Adverse Cardiovascular Events in Hypertension: A Nested Case-Control Substudy of the Anglo-Scandinavian Cardiac Outcomes Trial. EBioMedicine 2016; 9:372-380. [PMID: 27333022 PMCID: PMC4972545 DOI: 10.1016/j.ebiom.2016.06.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 05/20/2016] [Accepted: 06/06/2016] [Indexed: 10/25/2022] Open
Abstract
AIMS We aimed to determine whether the levels of total serum IgM and IgG, together with specific antibodies against malondialdehyde-conjugated low-density lipoprotein (MDA-LDL), can improve cardiovascular risk discrimination. METHODS AND RESULTS The Anglo-Scandinavian Cardiac Outcomes Trial (ASCOT) randomized 9098 patients in the UK and Ireland into the Blood Pressure-Lowering Arm. 485 patients that had cardiovascular (CV) events over 5.5years were age and sex matched with 1367 controls. Higher baseline total serum IgG, and to a lesser extent IgM, were associated with decreased risk of CV events (IgG odds ratio (OR) per one standard deviation (SD) 0.80 [95% confidence interval, CI 0.72,0.89], p<0.0001; IgM 0.83[0.75,0.93], p=0.001), and particularly events due to coronary heart disease (CHD) (IgG OR 0.66 (0.57,0.76); p<0.0001, IgM OR 0.81 (0.71,0.93); p=0.002). The association persisted after adjustment for a basic model with variables in the Framingham Risk Score (FRS) as well as following inclusion of C-reactive protein (CRP) and N-terminal pro-B-type natriuretic peptide (NtProBNP). IgG and IgM antibodies against MDA-LDL were also associated with CV events but their significance was lost following adjustment for total serum IgG and IgM respectively. The area under the receiver operator curve for CV events was improved from the basic risk model when adding in total serum IgG, and there was improvement in continuous and categorical net reclassification (17.6% and 7.5% respectively) as well as in the integrated discrimination index. CONCLUSION High total serum IgG levels are an independent predictor of freedom from adverse cardiovascular events, particularly those attributed to CHD, in patients with hypertension.
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Affiliation(s)
- Ramzi Y Khamis
- Vascular Sciences Section, NHLI, Imperial College London, United Kingdom
| | - Alun D Hughes
- International Centre for Circulatory Health, NHLI, Imperial College London, United Kingdom; Institute of Cardiovascular Science, University College London, United Kingdom
| | - Mikhail Caga-Anan
- Vascular Sciences Section, NHLI, Imperial College London, United Kingdom
| | - Choon L Chang
- International Centre for Circulatory Health, NHLI, Imperial College London, United Kingdom
| | - Joseph J Boyle
- Vascular Sciences Section, NHLI, Imperial College London, United Kingdom
| | - Chiari Kojima
- Vascular Sciences Section, NHLI, Imperial College London, United Kingdom
| | - Paul Welsh
- Division of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom
| | - Naveed Sattar
- Division of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom
| | - Michael Johns
- Vascular Sciences Section, NHLI, Imperial College London, United Kingdom
| | - Peter Sever
- International Centre for Circulatory Health, NHLI, Imperial College London, United Kingdom
| | - Jamil Mayet
- International Centre for Circulatory Health, NHLI, Imperial College London, United Kingdom
| | - Dorian O Haskard
- Vascular Sciences Section, NHLI, Imperial College London, United Kingdom.
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Nguyen VA, Carey LM, Giummarra L, Faou P, Cooke I, Howells DW, Tse T, Macaulay SL, Ma H, Davis SM, Donnan GA, Crewther SG. A Pathway Proteomic Profile of Ischemic Stroke Survivors Reveals Innate Immune Dysfunction in Association with Mild Symptoms of Depression - A Pilot Study. Front Neurol 2016; 7:85. [PMID: 27379006 PMCID: PMC4907034 DOI: 10.3389/fneur.2016.00085] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 05/23/2016] [Indexed: 12/14/2022] Open
Abstract
Depression after stroke is a common occurrence, raising questions as to whether depression could be a long-term biological and immunological sequela of stroke. Early explanations for post-stroke depression (PSD) focused on the neuropsychological/psychosocial effects of stroke on mobility and quality of life. However, recent investigations have revealed imbalances of inflammatory cytokine levels in association with PSD, though to date, there is only one published proteomic pathway analysis testing this hypothesis. Thus, we examined the serum proteome of stroke patients (n = 44, mean age = 63.62 years) and correlated these with the Montgomery–Åsberg Depression Rating Scale (MADRS) scores at 3 months post-stroke. Overall, the patients presented with mild depression symptoms on the MADRS, M = 6.40 (SD = 7.42). A discovery approach utilizing label-free relative quantification was employed utilizing an LC-ESI–MS/MS coupled to a LTQ-Orbitrap Elite (Thermo-Scientific). Identified peptides were analyzed using the gene set enrichment approach on several different genomic databases that all indicated significant downregulation of the complement and coagulation systems with increasing MADRS scores. Complement and coagulation systems are traditionally thought to play a key role in the innate immune system and are established precursors to the adaptive immune system through pro-inflammatory cytokine signaling. Both systems are known to be globally affected after ischemic or hemorrhagic stroke. Thus, our results suggest that lowered complement expression in the periphery in conjunction with depressive symptoms post-stroke may be a biomarker for incomplete recovery of brain metabolic needs, homeostasis, and inflammation following ischemic stroke damage. Further proteomic investigations are now required to construct the temporal profile, leading from acute lesion damage to manifestation of depressive symptoms. Overall, the findings provide support for the involvement of inflammatory and immune mechanisms in PSD symptoms and further demonstrate the value and feasibility of the proteomic approach in stroke research.
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Affiliation(s)
- Vinh A Nguyen
- Occupational Therapy, College of Science Health and Engineering, School of Allied Health, La Trobe University, Melbourne, VIC, Australia; Neurorehabilitation and Recovery, Stroke, The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia; School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia
| | - Leeanne M Carey
- Occupational Therapy, College of Science Health and Engineering, School of Allied Health, La Trobe University, Melbourne, VIC, Australia; Neurorehabilitation and Recovery, Stroke, The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - Loretta Giummarra
- School of Psychology and Public Health, La Trobe University , Melbourne, VIC , Australia
| | - Pierre Faou
- School of Molecular Sciences, La Trobe University , Melbourne, VIC , Australia
| | - Ira Cooke
- School of Molecular Sciences, La Trobe University , Melbourne, VIC , Australia
| | - David W Howells
- School of Medicine, University of Tasmania , Hobart, TAS , Australia
| | - Tamara Tse
- Occupational Therapy, College of Science Health and Engineering, School of Allied Health, La Trobe University, Melbourne, VIC, Australia; Neurorehabilitation and Recovery, Stroke, The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - S Lance Macaulay
- Commonwealth Science and Industrial Research Organisation (CSIRO) , Melbourne, VIC , Australia
| | - Henry Ma
- The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia; Monash University, Clayton, VIC, Australia
| | - Stephen M Davis
- The University of Melbourne, Parkville, VIC, Australia; Department of Medicine, Melbourne Brain Centre, Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Geoffrey A Donnan
- The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia; The University of Melbourne, Parkville, VIC, Australia
| | - Sheila G Crewther
- Neurorehabilitation and Recovery, Stroke, The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia; School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia
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Altmaier E, Menni C, Heier M, Meisinger C, Thorand B, Quell J, Kobl M, Römisch-Margl W, Valdes AM, Mangino M, Waldenberger M, Strauch K, Illig T, Adamski J, Spector T, Gieger C, Suhre K, Kastenmüller G. The Pharmacogenetic Footprint of ACE Inhibition: A Population-Based Metabolomics Study. PLoS One 2016; 11:e0153163. [PMID: 27120469 PMCID: PMC4847917 DOI: 10.1371/journal.pone.0153163] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 03/07/2016] [Indexed: 12/31/2022] Open
Abstract
Angiotensin-I-converting enzyme (ACE) inhibitors are an important class of antihypertensives whose action on the human organism is still not fully understood. Although it is known that ACE especially cleaves COOH-terminal dipeptides from active polypeptides, the whole range of substrates and products is still unknown. When analyzing the action of ACE inhibitors, effects of genetic variation on metabolism need to be considered since genetic variance in the ACE gene locus was found to be associated with ACE-concentration in blood as well as with changes in the metabolic profiles of a general population. To investigate the interactions between genetic variance at the ACE-locus and the influence of ACE-therapy on the metabolic status we analyzed 517 metabolites in 1,361 participants from the KORA F4 study. We replicated our results in 1,964 individuals from TwinsUK. We observed differences in the concentration of five dipeptides and three ratios of di- and oligopeptides between ACE inhibitor users and non-users that were genotype dependent. Such changes in the concentration affected major homozygotes, and to a lesser extent heterozygotes, while minor homozygotes showed no or only small changes in the metabolite status. Two of these resulting dipeptides, namely aspartylphenylalanine and phenylalanylserine, showed significant associations with blood pressure which qualifies them—and perhaps also the other dipeptides—as readouts of ACE-activity. Since so far ACE activity measurement is substrate specific due to the usage of only one oligopeptide, taking several dipeptides as potential products of ACE into account may provide a broader picture of the ACE activity.
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Affiliation(s)
- Elisabeth Altmaier
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Cristina Menni
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
| | - Margit Heier
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Christa Meisinger
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Barbara Thorand
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Jan Quell
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Michael Kobl
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Ana M. Valdes
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
| | - Massimo Mangino
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
| | - Melanie Waldenberger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Konstantin Strauch
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Institute of Medical Informatics, Biometry and Epidemiology, Chair of Genetic Epidemiology, Ludwig-Maximilians-Universität, Marchionistr. 15, D-81377 München, Germany
| | - Thomas Illig
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Hannover Unified Biobank, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany
- Institute of Human Genetics, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hanover, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Institute of Experimental Genetics, Life and Food Science Center Weihenstephan, Technische Universität München, D-85354 Freising, Germany
- German Center for Diabetes Research (DZD e.V.), Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Tim Spector
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
| | - Christian Gieger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, PO Box 24144, Doha, State of Qatar
| | - Gabi Kastenmüller
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- German Center for Diabetes Research (DZD e.V.), Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- * E-mail:
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Nørgaard I, Nielsen SF, Nordestgaard BG. Complement C3 and High Risk of Venous Thromboembolism: 80517 Individuals from the Copenhagen General Population Study. Clin Chem 2016; 62:525-34. [DOI: 10.1373/clinchem.2015.251314] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 12/16/2015] [Indexed: 11/06/2022]
Abstract
Abstract
BACKGROUND
Complement activation may contribute to venous thromboembolism, including deep venous thrombosis and pulmonary embolism. We tested the hypothesis that high complement C3 concentrations are associated with high risk of venous thromboembolism in the general population.
METHODS
We included 80 517 individuals without venous thromboembolism from the Copenhagen General Population Study recruited in 2003–2012. Plasma complement C3 concentrations were measured at baseline, and venous thromboembolism (n = 1176) was ascertained through April 2013 in nationwide registries. No individuals were lost to follow-up.
RESULTS
Complement C3 concentrations were approximately normally distributed, with a mean value of 1.13 g/L (interquartile range 0.98–1.26; SD 0.21). The cumulative incidence of venous thromboembolism was higher with progressively higher tertiles of complement C3 (log-rank trend: P = 3 × 10−8): at age 80, 7%, 9%, and 11% of individuals in the first, second, and third tertiles, respectively, had developed venous thromboembolism. Multivariable-adjusted hazard ratios for venous thromboembolism compared with individuals in the first tertile were 1.36 (95% CI, 1.16–1.59) for those in the second tertile and 1.58 (1.33–1.88) for those in the third tertile. Corresponding values were 1.36 (1.16–1.60) and 1.57 (1.33–1.87) after additional adjustment for C-reactive protein and 1.27 (1.09–1.49) and 1.31(1.10–1.57) after additional adjustment for body mass index. These results were similar for deep venous thrombosis and pulmonary embolism separately. The multivariable-adjusted hazard ratio for venous thromboembolism for a 1-g/L increase in complement C3 was 2.43 (1.74–3.40).
CONCLUSIONS
High concentrations of complement C3 were associated with high risk of venous thromboembolism in the general population.
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Affiliation(s)
- Ina Nørgaard
- Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sune F Nielsen
- Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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41
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Coronary leukocyte activation in relation to progression of coronary artery disease. Front Med 2016; 10:85-90. [PMID: 26831871 DOI: 10.1007/s11684-016-0435-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 01/06/2016] [Indexed: 01/29/2023]
Abstract
Leukocyte activation has been linked to atherogenesis, but there is little in vivo evidence for its role in the progression of atherosclerosis. We evaluated the predictive value for progression of coronary artery disease (CAD) of leukocyte activation markers in the coronary circulation. Monocyte and neutrophil CD11b, neutrophil CD66b expression and intracellular neutrophil myeloperoxidase (MPO) in the coronary arteries were determined by flow cytometry in patients undergoing coronary angiography. The primary outcome included fatal and nonfatal myocardial infarction or arterial vascular intervention due to unstable angina pectoris. In total 99 subjects who were included, 70 had CAD at inclusion (26 patients had single-vessel disease, 18 patients had twovessel disease and 26 patients had three-vessel disease). The median follow-up duration was 2242 days (interquartile range: 2142-2358). During follow-up, 13 patients (13%) developed progression of CAD. Monocyte CD11b, neutrophil CD11b and CD66b expression and intracellular MPO measured in blood obtained from the coronary arteries were not associated with the progression of CAD. These data indicate that coronary monocyte CD11b, neutrophil CD11b and CD66b expression and intracellular MPO do not predict the risk of progression of CAD.
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42
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Lines SW, Richardson VR, Thomas B, Dunn EJ, Wright MJ, Carter AM. Complement and Cardiovascular Disease--The Missing Link in Haemodialysis Patients. Nephron Clin Pract 2015; 132:5-14. [PMID: 26695077 DOI: 10.1159/000442426] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 11/11/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Patients on haemodialysis (HD) have high rates of cardiovascular (CV) disease and activation of the complement system. Despite evidence in non-renal patients that these may be linked, this association has received little attention in HD patients to date. In the setting of a randomised controlled trial we evaluated the relationships between baseline complement levels and subsequent CV events and mortality, in addition to the effects of HD with a vitamin E (VE)-coated dialysis membrane on circulating complement levels. METHODS A total of 260 HD patients were randomised to dialysis with a VE-coated dialysis membrane or non-VE coated equivalent for 12 months. Blood samples were taken at baseline, 6 and 12 months for measurement of C3, factor D, factor H and SC5b-9 levels. Data were collected prospectively on deaths and CV events. RESULTS Higher C3 levels at baseline were associated with subsequent CV events (hazard ratio 1.20 (1.01-1.42) per 0.1 mg/ml). Patients with intermediate SC5b-9 levels had significantly lower CV event rates and mortality than those with either high or low levels (p < 0.01). There were no effects of the VE-membranes on the complement components measured nor the clinical endpoints considered. CONCLUSIONS The levels of C3 and SC5b-9 may have prognostic utility for predicting future CV events and/or mortality in HD patients - a relationship that requires further investigation. Dialysing prevalent HD patients with VE-bonded polysulfone membranes for a period of 12 months did not alter the circulating levels of the alternative complement pathway components considered here.
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Affiliation(s)
- Simon W Lines
- Department of Renal Medicine, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
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43
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Vlaicu SI, Tatomir A, Rus V, Mekala AP, Mircea PA, Niculescu F, Rus H. The role of complement activation in atherogenesis: the first 40 years. Immunol Res 2015; 64:1-13. [DOI: 10.1007/s12026-015-8669-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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44
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Ferraris JR, Ferraris V, Acquier AB, Sorroche PB, Saez MS, Ginaca A, Mendez CF. Activation of the alternative pathway of complement during the acute phase of typical haemolytic uraemic syndrome. Clin Exp Immunol 2015; 181:118-25. [PMID: 25677399 DOI: 10.1111/cei.12601] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 01/16/2015] [Accepted: 01/30/2015] [Indexed: 11/29/2022] Open
Abstract
Haemolytic uraemic syndrome (HUS) is characterized by haemolytic anaemia, thrombocytopenia and acute renal failure. We studied the activation state of classical and alternative pathways of complement during the acute phase of Shiga toxin-associated HUS by performing a prospective study of 18 patients and 17 age-matched healthy controls to evaluate C3, C3c, C4, C4d, Bb and SC5b-9 levels. SC5b-9 levels were increased significantly in all patients at admission compared to healthy and end-stage renal disease controls, but were significantly higher in patients presenting with oliguria compared to those with preserved diuresis. C3 and C4 levels were elevated significantly at admission in the non-oliguric group when compared to controls. No significant differences were found for C4d values, whereas factor Bb was elevated in all patients and significantly higher in oliguric patients when compared to both controls and non-oliguric individuals. A positive and significant association was detected when Bb formation was plotted as a function of plasma SC5b-9 at admission. Bb levels declined rapidly during the first week, with values not significantly different from controls by days 3 and 5 for non-oligurics and oligurics, respectively. Our data demonstrate the activation of the alternative pathway of complement during the acute phase of Stx-associated HUS. This finding suggests that complement activation may represent an important trigger for the cell damage that occurs during the syndrome.
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Affiliation(s)
- J R Ferraris
- Pediatric Nephrology Service, Hospital Italiano.,Department of Pediatrics, School of Medicine, University of Buenos Aires
| | - V Ferraris
- Pediatric Nephrology Service, Hospital Italiano
| | - A B Acquier
- Pharmacology Unit, School of Dentistry, University of Buenos Aires.,Institute for Biomedical Research (INBIOMED), School of Medicine, University of Buenos Aires and National Scientific and Technical Research Council
| | | | - M S Saez
- Central Laboratory, Hospital Italiano
| | - A Ginaca
- Immunology Service, Hospital de Niños Ricardo Gutierrez, Buenos Aires, Argentina
| | - C F Mendez
- Pharmacology Unit, School of Dentistry, University of Buenos Aires.,Institute for Biomedical Research (INBIOMED), School of Medicine, University of Buenos Aires and National Scientific and Technical Research Council
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45
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Fiorentino TV, Hribal ML, Andreozzi F, Perticone M, Sciacqua A, Perticone F, Sesti G. Plasma complement C3 levels are associated with insulin secretion independently of adiposity measures in non-diabetic individuals. Nutr Metab Cardiovasc Dis 2015; 25:510-517. [PMID: 25813686 DOI: 10.1016/j.numecd.2015.02.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 01/28/2015] [Accepted: 02/13/2015] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND AIMS To evaluate if complement C3 is associated with insulin secretion, as suggested by recent in vitro studies, independently of confounders including adiposity measures. METHODS AND RESULTS 1010 nondiabetic subjects were stratified into quartiles according to complement C3 values. Insulin secretion was assessed using indexes derived from oral glucose tolerance test (OGTT) in the whole study group and from intravenous glucose tolerance test (IVGTT) in a subgroup (n = 110). Significant differences between quartiles of C3 were observed in body mass index (BMI), waist, fat mass, blood pressure, total cholesterol, high density lipoprotein (HDL), triglycerides, fasting and 2-h post-load glucose, fasting insulin, C reactive protein (hsCRP), fibrinogen, aspartate aminotransferase (AST), alanine aminotransferase (ALT), complement C4, and insulin sensitivity with C3 quartiles exhibiting graded increases in cardio-metabolic risk factors. Differences in insulin secretion indexes between C3 quartiles remained significant after adjustment for age, gender, BMI, insulin sensitivity, blood pressure, total cholesterol, HDL, triglycerides, hsCRP, fibrinogen, and complement C4 levels (P < 0.0001). A multivariable regression analysis revealed that complement C3 is a contributor of insulin secretion, explaining 2.4% and 1.9% of variation of the Stumvoll index for first-phase and second-phase insulin secretion, respectively, and 2.1% of variation of the InsAUC30/GluAUC30 index, independently of gender, age, BMI, waist, fat mass, blood pressure, total cholesterol, HDL, triglycerides, hsCRP, fibrinogen, AST, ALT. CONCLUSIONS Complement C3 concentrations are associated with insulin secretion independently of important determinants of glucose homeostasis such as gender, age, adiposity, subclinical inflammation, and insulin sensitivity.
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Affiliation(s)
- T V Fiorentino
- Department of Medical and Surgical Sciences, Viale Europa, University Magna-Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - M L Hribal
- Department of Medical and Surgical Sciences, Viale Europa, University Magna-Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - F Andreozzi
- Department of Medical and Surgical Sciences, Viale Europa, University Magna-Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - M Perticone
- Department of Medical and Surgical Sciences, Viale Europa, University Magna-Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - A Sciacqua
- Department of Medical and Surgical Sciences, Viale Europa, University Magna-Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - F Perticone
- Department of Medical and Surgical Sciences, Viale Europa, University Magna-Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - G Sesti
- Department of Medical and Surgical Sciences, Viale Europa, University Magna-Græcia of Catanzaro, 88100 Catanzaro, Italy.
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Sreckovic I, Birner-Gruenberger R, Besenboeck C, Miljkovic M, Stojakovic T, Scharnagl H, Marsche G, Lang U, Kotur-Stevuljevic J, Jelic-Ivanovic Z, Desoye G, Wadsack C. Gestational diabetes mellitus modulates neonatal high-density lipoprotein composition and its functional heterogeneity. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1841:1619-27. [DOI: 10.1016/j.bbalip.2014.07.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 07/14/2014] [Accepted: 07/29/2014] [Indexed: 01/26/2023]
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The complement system in human cardiometabolic disease. Mol Immunol 2014; 61:135-48. [PMID: 25017306 DOI: 10.1016/j.molimm.2014.06.031] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 06/18/2014] [Accepted: 06/23/2014] [Indexed: 02/07/2023]
Abstract
The complement system has been implicated in obesity, fatty liver, diabetes and cardiovascular disease (CVD). Complement factors are produced in adipose tissue and appear to be involved in adipose tissue metabolism and local inflammation. Thereby complement links adipose tissue inflammation to systemic metabolic derangements, such as low-grade inflammation, insulin resistance and dyslipidaemia. Furthermore, complement has been implicated in pathophysiological mechanisms of diet- and alcohol induced liver damage, hyperglycaemia, endothelial dysfunction, atherosclerosis and fibrinolysis. In this review, we summarize current evidence on the role of the complement system in several processes of human cardiometabolic disease. C3 is the central component in complement activation, and has most widely been studied in humans. C3 concentrations are associated with insulin resistance, liver dysfunction, risk of the metabolic syndrome, type 2 diabetes and CVD. C3 can be activated by the classical, the lectin and the alternative pathway of complement activation; and downstream activation of C3 activates the terminal pathway. Complement may also be activated via extrinsic proteases of the coagulation, fibrinolysis and the kinin systems. Studies on the different complement activation pathways in human cardiometabolic disease are limited, but available evidence suggests that they may have distinct roles in processes underlying cardiometabolic disease. The lectin pathway appeared beneficial in some studies on type 2 diabetes and CVD, while factors of the classical and the alternative pathway were related to unfavourable cardiometabolic traits. The terminal complement pathway was also implicated in insulin resistance and liver disease, and appears to have a prominent role in acute and advanced CVD. The available human data suggest a complex and potentially causal role for the complement system in human cardiometabolic disease. Further, preferably longitudinal studies are needed to disentangle which aspects of the complement system and complement activation affect the different processes in human cardiometabolic disease.
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Snyder ML, Shields KJ, Korytkowski MT, Sutton-Tyrrell K, Talbott EO. Complement protein C3 and coronary artery calcium in middle-aged women with polycystic ovary syndrome and controls. Gynecol Endocrinol 2014; 30:511-5. [PMID: 24592986 PMCID: PMC4065194 DOI: 10.3109/09513590.2014.895985] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Circulating complement protein C3 (C3) levels have been associated with coronary artery calcification (CAC) in women with systemic lupus erythematosus, but have yet to be evaluated in women with polycystic ovary syndrome (PCOS). We aimed to determine whether C3 levels were elevated in women with PCOS compared to controls and to quantify the association of C3 with cardiovascular disease (CVD) risk factors and CAC and if PCOS modified this association. This cross-sectional analysis included 132 women with PCOS and 155 controls, 35-62 years old, from the third visit of a case-control study. CAC was measured during the study visit, and circulating C3 was measured in stored sera. The presence of CAC and CAC categories (Agatston score 0, 1-9.9 and ≥ 10) were used for logistic and ordinal regression analysis, respectively. C3 levels were not significantly different between women with PCOS and controls. Among all women, C3 was associated with the presence of CAC and increasing CAC groups after adjusting for age, PCOS status and insulin or body mass index (BMI), all p<0.05. In addition, C3 was associated with the presence of CAC after adjusting for age, PCOS status, BMI, insulin and African American race, p=0.049. PCOS status did not modify these associations. In conclusion, circulating C3 levels may prove beneficial in identifying women at risk of CVD in women with PCOS and the general population.
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Affiliation(s)
- Michelle L. Snyder
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Kelly J. Shields
- Lupus Center of Excellence, Allegheny Singer Research Institute, West Penn Allegheny Health System, Pittsburgh, Pennsylvania, USA
| | - Mary T. Korytkowski
- Division of Endocrinology and Metabolism, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Kim Sutton-Tyrrell
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Evelyn O. Talbott
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
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Postprandial inflammation: targeting glucose and lipids. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 824:161-70. [PMID: 25038999 DOI: 10.1007/978-3-319-07320-0_12] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Many risk factors have been identified as being responsible for the process of atherogenesis. Several of these risk factors are related to inflammation, which is an obligatory feature of the atherosclerotic plaque. Increasing evidence suggests that postprandial lipoproteins and glucose may be involved in the inflammatory process preceding the development of atherosclerosis. During the postprandial situation, remnants of chylomicrons and very low-density lipoproteins bind to circulating leukocytes and endothelial cells, leading to a state of acute activation with the expression of integrins on different cells, the generation of oxidative stress, production of cytokines and complement activation. Elevated plasma glucose levels may also induce leukocyte activation in humans. In addition, advanced glycation end products, formed during hyperglycemia, cause inflammation and endothelial damage. This chain of events results in a situation of acute inflammation causing endothelial dysfunction, which may be one of the earliest defects in atherogenesis. Interestingly, while this may occur several times each day after each meal, there is only limited information on the contribution of different nutrients on the postprandial inflammatory processes. In this review, we will focus on the available evidence and we will discuss the role of lifestyle and pharmaceutical interventions in modulating postprandial inflammation.
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van Greevenbroek MMJ, Arts ICW, van der Kallen CJH, Dagnelie PC, Ferreira I, Jansen E, Schalkwijk CG, Feskens EJM, Stehouwer CDA. Complement c3 is inversely associated with habitual intake of provitamin A but not with dietary fat, fatty acids, or vitamin E in middle-aged to older white adults and positively associated with intake of retinol in middle-aged to older white women. J Nutr 2014; 144:61-7. [PMID: 24174622 DOI: 10.3945/jn.113.181628] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Complement factor 3 (C3) has been identified as a novel risk factor for obesity-associated cardiometabolic diseases. Data in the literature suggest that C3 concentrations may be influenced by diet. Therefore, we investigated the associations of intake of total fat, specific fatty acids, and fat-soluble vitamin E (and individual tocopherols) and vitamin A (and its dietary precursors) with circulating C3. In a white cohort [Cohort on Diabetes and Atherosclerosis Maastricht (CODAM); n = 501; 59.4 ± 7.1 y; 61% men], associations of habitual nutrient intake (assessed by a food-frequency questionnaire) with circulating C3 were evaluated by using cross-sectional multiple linear regression analyses. Adjustments were first performed for age, sex, glucose metabolism status (i.e., impaired glucose metabolism or type 2 diabetes), and energy intake and subsequently for BMI, waist circumference, alcohol intake, smoking behavior, and season of blood collection. No associations with C3 were observed for total dietary fat intake or intake of specific fatty acids [saturated, monounsaturated, polyunsaturated, n-6 (ω-6), and n-3 (ω- 3) fatty acids], vitamin E, or individual tocopherols. We observed an inverse association with intake of provitamin A carotenoids α-carotene (in μg/d; regression coefficient β = -0.075; 95% CI: -0.140, -0.010; P = 0.025) and β-carotene (in μg/d; β = -0.021; 95% CI: -0.044, 0.002; P = 0.068) with C3 (in mg/L). In contrast, and only in women, dietary retinol intake (in μg/d) was positively associated with C3 (β = 0.116; 95% CI: 0.014, 0.218; P = 0.026; n = 196). In conclusion, these data suggest that fasting concentrations of C3 may, in a complex manner, be modifiable by variation in dietary provitamin A carotenoids and/or retinol content of the usual diet but most likely not by variations in fat composition and vitamin E content.
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