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Rodríguez-González D, García-González M, Gómez-Bernal F, Quevedo-Abeledo JC, González-Rivero AF, Jiménez-Sosa A, González-López E, Heras-Recuero E, Ocejo-Vinyals JG, González-Gay MÁ, Ferraz-Amaro I. Relationship between the complement system and serum lipid profile in patients with rheumatoid arthritis. Front Immunol 2024; 15:1420292. [PMID: 39072319 PMCID: PMC11272461 DOI: 10.3389/fimmu.2024.1420292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 06/28/2024] [Indexed: 07/30/2024] Open
Abstract
Background The complement system has been linked to the etiopathogenesis of rheumatoid arthritis (RA). Patients with RA exhibit a dysregulated profile of lipid molecules, which has been attributed to the inflammation present in the disease. In this study, we aimed to evaluate the association between a comprehensive assessment of the complement system and the lipid profile of patients with RA. Methods 430 patients with RA were recruited. New-generation techniques were employed to conduct functional assays of the three pathways of the complement system. Serum levels of various complement components such as C1q, factor D, properdin, lectin, C1-inhibitor, C2, C4, C4b, C3, C3a, C5, C5a, and C9 were assessed. Furthermore, a complete pattern of lipid molecules was measured including high (HDL), low-density lipoproteins (LDL), and lipoprotein (a). Multivariable linear regression analysis was conducted to investigate the association between the complement system and lipid profile in RA patients. Results After multivariable analysis, several noteworthy associations emerged between the complement system and lipid molecules. Notably, complement components most strongly linked to the lipid profile were C1q and properdin, representing the upstream classical and alternative pathways, along with C3 from the common cascade. These associations demonstrated significance and positivity concerning total cholesterol, LDL, atherogenic index, apolipoprotein B, and lipoprotein(a), suggesting a connection with an unfavorable lipid profile. Interestingly, complement functional assays of the three pathways and activated products such as C3a and C5a showed no correlation with the lipid pattern. Conclusion The correlation between the complement system and lipid molecule patterns is pronounced in patients with RA. This relationship is predominantly positive and primarily associated with upstream complement components rather than activated ones.
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Affiliation(s)
- Dara Rodríguez-González
- Division of Central Laboratory, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | - María García-González
- Division of Rheumatology , Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | - Fuensanta Gómez-Bernal
- Division of Central Laboratory, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | | | | | | | - Elena González-López
- Division of Immunology, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación sanitaria Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Elena Heras-Recuero
- Division of Rheumatology, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Madrid, Spain
| | - J. Gonzalo Ocejo-Vinyals
- Division of Immunology, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación sanitaria Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Miguel Á. González-Gay
- Division of Rheumatology, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Madrid, Spain
- Department of Medicine and Psychiatry, University of Cantabria, Santander, Spain
| | - Iván Ferraz-Amaro
- Division of Rheumatology , Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
- Department of Internal Medicine, University of La Laguna (ULL), Santa Cruz de Tenerife, Spain
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Bhale AS, Meilhac O, d'Hellencourt CL, Vijayalakshmi MA, Venkataraman K. Cholesterol transport and beyond: Illuminating the versatile functions of HDL apolipoproteins through structural insights and functional implications. Biofactors 2024. [PMID: 38661230 DOI: 10.1002/biof.2057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 04/02/2024] [Indexed: 04/26/2024]
Abstract
High-density lipoproteins (HDLs) play a vital role in lipid metabolism and cardiovascular health, as they are intricately involved in cholesterol transport and inflammation modulation. The proteome of HDL particles is indeed complex and distinct from other components in the bloodstream. Proteomics studies have identified nearly 285 different proteins associated with HDL; however, this review focuses more on the 15 or so traditionally named "apo" lipoproteins. Important lipid metabolizing enzymes closely working with the apolipoproteins are also discussed. Apolipoproteins stand out for their integral role in HDL stability, structure, function, and metabolism. The unique structure and functions of each apolipoprotein influence important processes such as inflammation regulation and lipid metabolism. These interactions also shape the stability and performance of HDL particles. HDLs apolipoproteins have multifaceted roles beyond cardiovascular diseases (CVDs) and are involved in various physiological processes and disease states. Therefore, a detailed exploration of these apolipoproteins can offer valuable insights into potential diagnostic markers and therapeutic targets. This comprehensive review article aims to provide an in-depth understanding of HDL apolipoproteins, highlighting their distinct structures, functions, and contributions to various physiological processes. Exploiting this knowledge holds great potential for improving HDL function, enhancing cholesterol efflux, and modulating inflammatory processes, ultimately benefiting individuals by limiting the risks associated with CVDs and other inflammation-based pathologies. Understanding the nature of all 15 apolipoproteins expands our knowledge of HDL metabolism, sheds light on their pathological implications, and paves the way for advancements in the diagnosis, prevention, and treatment of lipid and inflammatory-related disorders.
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Affiliation(s)
- Aishwarya Sudam Bhale
- Centre for Bio-Separation Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Olivier Meilhac
- Inserm, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Pierre, France
| | - Christian Lefebvre d'Hellencourt
- Inserm, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Pierre, France
| | | | - Krishnan Venkataraman
- Centre for Bio-Separation Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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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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Zhang J, Li H, Sun R, Cao Z, Huang J, Jiang Y, Mo M, Luo L, Guo Q, Chen Q, Zhang Y. The mediation effect of HDL-C: Non-HDL-C on the association between inflammatory score and recurrent coronary events. Heliyon 2024; 10:e23731. [PMID: 38187341 PMCID: PMC10770612 DOI: 10.1016/j.heliyon.2023.e23731] [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: 07/20/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 01/09/2024] Open
Abstract
Background Inflammation and lipids are both involved in the pathogenesis of coronary heart disease (CHD). However, the mediation effect of lipoproteins on the association between inflammation and recurrent coronary events in CHD patients remains unclear. Methods This was a retrospective study including CHD patients hospitalized in the Department of Cardiovascular Medicine in Sun Yat-sen Memorial Hospital between January 2011 and December 2012 with the endpoint of recurrent coronary events. The study calculated inflammatory score based on six serum inflammatory markers, including complement C3, complement C4, hyper-sensitive CRP, fibrinogen, D-dimer, and white blood cell count. Logistic regression analysis, subgroup analysis and mediation analysis were performed to assess the associations between inflammatory score and recurrent coronary events in different subpopulations and the identification of mediators. Inflammatory cytokine expression, cholesterol efflux capacity, and hepatic cholesterol influx were performed in additional CHD patients and healthy controls. Results There were 191 CHD patients included in the analysis with a median inflammatory score of -0.78 (-2.17, 1.35) and 63 cases of recurrent coronary events. Subgroup logistic regression analysis demonstrated that inflammatory score was positively associated with recurrent coronary events only in the diabetic subgroup [OR: 1.241 (1.004, 1.534), P < 0.046]. HDL-cholesterol (HDL-C): non-HDL-C performed 46.74 % of negative mediation effect on this association. CHD patients had lower cholesterol efflux capacity than healthy controls, which was mediated by HDL: non-HDL ratio of 0.4. No difference was found in hepatic cholesterol influx between the two groups. Conclusion Inflammatory score was associated with recurrent coronary events mediated by HDL-C: non-HDL-C ratio in diabetic CHD patients, indicating that lipoproteins might aggravate the inflammatory effect on atherosclerosis under hyperglycemia. Our findings suggested that anti-inflammatory and lipid-lowering therapies might be beneficial for this population.
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Affiliation(s)
- Jie Zhang
- Department of Cardiovascular Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang West Road, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Hongwei Li
- Department of Cardiovascular Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang West Road, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Runlu Sun
- Department of Cardiovascular Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang West Road, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, 510120, China
| | - Zhengyu Cao
- Department of Cardiovascular Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang West Road, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, 510120, China
| | - Jingjing Huang
- Department of Cardiovascular Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang West Road, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, 510120, China
| | - Yuan Jiang
- Department of Cardiovascular Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang West Road, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, 510120, China
| | - Mingxing Mo
- The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Lingyu Luo
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 528478, China
| | - Qi Guo
- Department of Cardiovascular Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang West Road, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, 510120, China
| | - Qian Chen
- Department of Cardiovascular Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang West Road, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, 510120, China
| | - Yuling Zhang
- Department of Cardiovascular Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang West Road, Guangzhou, 510120, China
- Guangdong Provincial Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, 510120, China
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Reed RM, Whyte MB, Goff LM. Cardiometabolic disease in Black African and Caribbean populations: an ethnic divergence in pathophysiology? Proc Nutr Soc 2023:1-11. [PMID: 38230432 DOI: 10.1017/s0029665123004895] [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: 01/18/2024]
Abstract
In the UK, populations of Black African and Caribbean (BAC) ethnicity suffer higher rates of cardiometabolic disease than White Europeans (WE). Obesity, leading to increased visceral adipose tissue (VAT) and intrahepatic lipid (IHL), has long been associated with cardiometabolic risk, driving insulin resistance and defective fatty acid/lipoprotein metabolism. These defects are compounded by a state of chronic low-grade inflammation, driven by dysfunctional adipose tissue. Emerging evidence has highlighted associations between central complement system components and adipose tissue, fatty acid metabolism and inflammation; it may therefore sit at the intersection of various cardiometabolic disease risk factors. However, increasing evidence suggests an ethnic divergence in pathophysiology, whereby current theories fail to explain the high rates of cardiometabolic disease in BAC populations. Lower fasting and postprandial TAG has been reported in BAC, alongside lower VAT and IHL deposition, which are paradoxical to the high rates of cardiometabolic disease exhibited by this ethnic group. Furthermore, BAC have been shown to exhibit a more anti-inflammatory profile, with lower TNF-α and greater IL-10. In contrast, recent evidence has revealed greater complement activation in BAC compared to WE, suggesting its dysregulation may play a greater role in the high rates of cardiometabolic disease experienced by this population. This review outlines the current theories of how obesity is proposed to drive cardiometabolic disease, before discussing evidence for ethnic differences in disease pathophysiology between BAC and WE populations.
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Affiliation(s)
- Reuben M Reed
- Department of Nutritional Sciences, Faculty of Life Sciences & Medicine, King's College London, London SE1 9NH, UK
| | - Martin B Whyte
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey GU2 7WG, UK
| | - Louise M Goff
- Leicester Diabetes Research Centre, University of Leicester, Leicester, UK
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García-González M, Gómez-Bernal F, Quevedo-Abeledo JC, Fernández-Cladera Y, González-Rivero AF, López-Mejías R, Díaz-González F, González-Gay MÁ, Ferraz-Amaro I. HDL Cholesterol Efflux and the Complement System Are Linked in Systemic Lupus Erythematosus. J Clin Med 2023; 12:5405. [PMID: 37629447 PMCID: PMC10455830 DOI: 10.3390/jcm12165405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 08/07/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Cholesterol efflux capacity (CEC), the ability of high-density lipoprotein (HDL) cholesterol to accept cholesterol from macrophages, has been linked to cardiovascular events. Systemic lupus erythematosus (SLE) is characterized by the consumption of complement (C) proteins and has been associated with an increased risk of cardiovascular disease. CEC is reduced in SLE patients compared to controls. In the present work, our objective was to analyze whether the disruption of C influences CEC in patients with SLE. New-generation functional assays of the three pathways of the C system were performed in 207 patients with SLE. Additionally, serum levels of inactive (C1q, C2, C3, C4, and factor D) and activated (C3a) molecules, and regulators (C1-inhibitor and factor H) of C system were measured. CEC, using an in vitro assay, and lipoprotein serum concentrations were assessed. Multivariable linear regression analysis was performed to assess the relationship between C system and CEC. After full multivariable analysis, the alternative C cascade functional test showed a significant and negative relationship with CEC. This was also the case for C2 and C3, in which the associations were found to be positive and statistically significant, after adjustment for covariates. In conclusion, C system and CEC are interconnected in patients with SLE.
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Affiliation(s)
- María García-González
- Division of Rheumatology, Hospital Universitario de Canarias, 38320 Tenerife, Spain; (M.G.-G.); (F.D.-G.)
| | - Fuensanta Gómez-Bernal
- Division of Central Laboratory, Hospital Universitario de Canarias, 38320 Tenerife, Spain; (F.G.-B.); (Y.F.-C.); (A.F.G.-R.)
| | | | - Yolanda Fernández-Cladera
- Division of Central Laboratory, Hospital Universitario de Canarias, 38320 Tenerife, Spain; (F.G.-B.); (Y.F.-C.); (A.F.G.-R.)
| | - Agustín F. González-Rivero
- Division of Central Laboratory, Hospital Universitario de Canarias, 38320 Tenerife, Spain; (F.G.-B.); (Y.F.-C.); (A.F.G.-R.)
| | - Raquel López-Mejías
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Instituto de Investigación sanitaria Marqués de Valdecilla (IDIVAL), 39011 Santander, Spain;
| | - Federico Díaz-González
- Division of Rheumatology, Hospital Universitario de Canarias, 38320 Tenerife, Spain; (M.G.-G.); (F.D.-G.)
- Department of Internal Medicine, University of La Laguna (ULL), 38200 Tenerife, Spain
| | - Miguel Á. González-Gay
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain
- Department of Medicine and Psychiatry, University of Cantabria, 39005 Santander, Spain
| | - Iván Ferraz-Amaro
- Division of Rheumatology, Hospital Universitario de Canarias, 38320 Tenerife, Spain; (M.G.-G.); (F.D.-G.)
- Department of Internal Medicine, University of La Laguna (ULL), 38200 Tenerife, Spain
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Goff LM, Davies K, Zelek WM, Kodosaki E, Hakim O, Lockhart S, O’Rahilly S, Morgan BP. Ethnic differences in complement system biomarkers and their association with metabolic health in men of Black African and White European ethnicity. Clin Exp Immunol 2023; 212:52-60. [PMID: 36722378 PMCID: PMC10081104 DOI: 10.1093/cei/uxad011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 12/18/2022] [Accepted: 01/31/2023] [Indexed: 02/02/2023] Open
Abstract
Inflammation plays a fundamental role in the development of several metabolic diseases, including obesity and type 2 diabetes (T2D); the complement system has been implicated in their development. People of Black African (BA) ethnicity are disproportionately affected by T2D and other metabolic diseases but the impact of ethnicity on the complement system has not been explored. We investigated ethnic differences in complement biomarkers and activation status between men of BA and White European (WE) ethnicity and explored their association with parameters of metabolic health. We measured a panel of 15 complement components, regulators, and activation products in fasting plasma from 89 BA and 96 WE men. Ethnic differences were statistically validated. Association of complement biomarkers with metabolic health indices (BMI, waist circumference, insulin resistance, and HbA1c) were assessed in the groups. Plasma levels of the key complement components C3 and C4, the regulators clusterin and properdin and the activation marker iC3b were significantly higher in BA compared to WE men after age adjustment, while FD levels were significantly lower. C3 and C4 levels positively correlated with some or all markers of metabolic dysfunction in both ethnic groups while FD was inversely associated with HbA1c in both groups, and clusterin and properdin were inversely associated with some markers of metabolic dysfunction only in the WE group. Our findings of increased levels of complement components and activation products in BA compared to WE men suggest differences in complement regulation that may impact susceptibility to poor metabolic health.
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Affiliation(s)
- L M Goff
- Department of Nutritional Sciences, School of Population & Life Course Sciences, Faculty of Life Sciences & Medicine, King’s College London, London, UK
| | - K Davies
- Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Cardiff, UK
| | - W M Zelek
- Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Cardiff, UK
| | - E Kodosaki
- Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Cardiff, UK
| | - O Hakim
- Department of Nutritional Sciences, School of Population & Life Course Sciences, Faculty of Life Sciences & Medicine, King’s College London, London, UK
- School of Life & Health Sciences, University of Roehampton, London, UK
| | - S Lockhart
- MRC Metabolic Diseases Unit & Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - S O’Rahilly
- MRC Metabolic Diseases Unit & Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - B P Morgan
- Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Cardiff, UK
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HDL-Associated Proteins in Subjects with Polycystic Ovary Syndrome: A Proteomic Study. Cells 2023; 12:cells12060855. [PMID: 36980195 PMCID: PMC10047209 DOI: 10.3390/cells12060855] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/01/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Introduction. Serum lipoproteins, with the exception of high-density lipoprotein cholesterol (HDL-C), are increased in polycystic ovary syndrome (PCOS) and their levels may reflect the associated obesity and insulin resistance, but the nature of this association is not fully explained. Therefore, proteomic analysis of key proteins in lipoprotein metabolism was performed. Methods. In this cohort study, plasma was collected from 234 women (137 with PCOS and 97 controls without PCOS). Somalogic proteomic analysis was undertaken for the following 19 proteins involved in lipoprotein, and particularly HDL, metabolism: alpha-1-antichymotrypsin; alpha-1-antitrypsin; apolipoproteins A-1, B, D, E, E2, E3, E4, L1, and M; clusterin; complement C3; hemopexin; heparin cofactor II; kininogen-1; serum amyloid A-1; amyloid beta A-4; and paraoxonase-1. Results. The levels of apolipoprotein E were higher in PCOS (p = 0.012). However, the other isoforms of ApoE, ApoE2, E3, and E4, did not differ when compared with controls. ApoM was lower in PCOS (p = 0.000002). Complement C3 was higher in PCOS (p = 0.037), as was heparin cofactor II (HCFII) (p = 0.0004). The levels of the other proteins associated with lipoprotein metabolism did not differ between PCOS and controls. Conclusions. These data contribute to the concern of the deleterious dyslipidemia found in PCOS, with the novel combination reported here of higher levels of ApoE, C3 and HCFII together with lower ApoM. The dysregulation of these proteins could circumvent the protective effect of HDL-C and contribute to a more atherogenic profile that may increase cardiovascular risk.
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Butler AE, Moin ASM, Reiner Ž, Sathyapalan T, Jamialahmadi T, Sahebkar A, Atkin SL. High density lipoprotein-associated proteins in non-obese women with and without polycystic ovary syndrome. Front Endocrinol (Lausanne) 2023; 14:1117761. [PMID: 37181037 PMCID: PMC10171110 DOI: 10.3389/fendo.2023.1117761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 04/03/2023] [Indexed: 05/16/2023] Open
Abstract
Introduction Dyslipidemia frequently occurs in women with polycystic ovary syndrome (PCOS), but it is unclear whether dyslipidemia is due to obesity and insulin resistance (IR) or is inherent to PCOS. To address this, proteomic analysis of proteins important in lipid metabolism, particularly for high-density lipoprotein cholesterol (HDL-C), was performed in non-obese, non-insulin resistant PCOS women compared to matched controls. Methods Weight and aged-matched non-obese subjects with PCOS (n=24) and without IR were compared with control women (n=24). 19 proteins were measured by Somalogic proteomic analysis: alpha-1-antichymotrypsin, alpha-1-antitrypsin, apolipoproteins A-1, B, D, E, E2, E3, E4, L1, M, clusterin, complement C3, hemopexin, heparin cofactor-II (HCFII), kininogen-1, serum amyloid A-1, amyloid beta A-4 and paraoxonase-1. Results Women with PCOS had a higher free androgen index (FAI) (p<0.001) and anti-Mullerian hormone (AMH) (p<0.001), but IR and C-reactive protein (CRP), a marker of inflammation, did not differ from controls (p>0.05). The triglyceride:HDL-cholesterol ratio was elevated (p=0.03) in PCOS. Alpha-1-antitrypsin levels were lower (p<0.05) and complement C3 levels were higher (p=0.001) in PCOS. C3 correlated with body mass index (BMI) (r=0.59, p=0.001), IR (r=0.63, p=0.0005) and CRP (r=0.42, p=0.04) in women with PCOS, though no correlations of these parameters with alpha-1-antitrypsin were found. Total cholesterol, triglycerides, HDL-cholesterol, LDL-cholesterol and levels of the other 17 lipoprotein metabolism-associated proteins did not differ between the two groups (p>0.05). However, in PCOS, alpha-1-antichymotrypsin correlated negatively with BMI (r=-0.40, p<0.04) and HOMA-IR (r=-0.42, p<0.03), apoM correlated positively with CRP (r=0.36, p<0.04) and HCFII correlated negatively with BMI (r=-0.34, p<0.04). Conclusion In PCOS subjects, when obesity, IR and inflammation confounders were absent, alpha-1-antitrypsin was lower and complement C3 was higher than in non-PCOS women, suggesting increased cardiovascular risk; however, subsequent obesity related IR/inflammation likely stimulates other HDL-associated protein abnormalities, thus increasing cardiovascular risk further.
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Affiliation(s)
- Alexandra E. Butler
- Research Department, Royal College of Surgeons in Ireland Bahrain, Adliya, Bahrain
- *Correspondence: Alexandra E. Butler, ;
| | - Abu Saleh Md Moin
- Research Department, Royal College of Surgeons in Ireland Bahrain, Adliya, Bahrain
| | - Željko Reiner
- Department of Internal Medicine, University Hospital Center Zagreb, Zagreb, Croatia
| | - Thozhukat Sathyapalan
- Academic Endocrinology, Diabetes and Metabolism, Hull York Medical School, Hull, United Kingdom
| | - Tannaz Jamialahmadi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Medicine, The University of Western Australia, Perth, WA, Australia
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Stephen L. Atkin
- Research Department, Royal College of Surgeons in Ireland Bahrain, Adliya, Bahrain
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10
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Kemper C, Sack MN. Linking nutrient sensing, mitochondrial function, and PRR immune cell signaling in liver disease. Trends Immunol 2022; 43:886-900. [PMID: 36216719 PMCID: PMC9617785 DOI: 10.1016/j.it.2022.09.002] [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: 07/25/2022] [Revised: 09/01/2022] [Accepted: 09/09/2022] [Indexed: 01/12/2023]
Abstract
Caloric overconsumption in vertebrates promotes adipose and liver fat accumulation while perturbing the gut microbiome. This triad triggers pattern recognition receptor (PRR)-mediated immune cell signaling and sterile inflammation. Moreover, immune system activation perpetuates metabolic consequences, including the progression of nonalcoholic fatty liver disease (NAFLD) to nonalcoholic hepatic steatohepatitis (NASH). Recent findings show that sensing of nutrient overabundance disrupts the activity and homeostasis of the central cellular energy-generating organelle, the mitochondrion. In parallel, whether caloric excess-initiated PRR signaling and mitochondrial perturbations are coordinated to amplify this inflammatory process in NASH progression remains in question. We hypothesize that altered mitochondrial function, classic PRR signaling, and complement activation in response to nutrient overload together play an integrated role across the immune cell landscape, leading to liver inflammation and NASH progression.
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Affiliation(s)
- Claudia Kemper
- Complement and Inflammation Research Section (CIRS), National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Michael N Sack
- Laboratory of Mitochondrial Biology and Metabolism, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
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11
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El Khoudary SR, Chen X, McConnell D, Brooks MM, Billheimer J, Orchard TJ. Associations of HDL subclasses and lipid content with complement proteins over the menopause transition: The SWAN HDL ancillary study: HDL and complement proteins in women. J Clin Lipidol 2022; 16:649-657. [PMID: 35987805 PMCID: PMC11218699 DOI: 10.1016/j.jacl.2022.07.015] [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: 04/20/2022] [Revised: 07/13/2022] [Accepted: 07/25/2022] [Indexed: 10/16/2022]
Abstract
BACKGROUND The menopause transition (MT) could trigger low-grade chronic inflammation which may modify high-density lipoproteins (HDL) and lead to additional inflammatory responses contributing to atherosclerosis development. OBJECTIVE To test whether complement proteins C3 and C4 increase around the final menstrual period (FMP), and whether changes in HDL subclasses and lipid content associate with C3 and C4 levels over time in midlife women. METHODS The study included 471 women (at baseline: age 50.2(2.7) years; 87.3% pre or peri-menopausal) who had nuclear magnetic resonance spectroscopy HDL subclasses, lipid content, and C3 and C4 measured up to 5 times over the MT. RESULTS Adjusted annual changes in C3 and C4 varied by time segments relative to FMP with significant increases, steeper for C3, only observed within 1 year before to 2 years after the FMP. Greater decreases in large HDL particles (HDL-P), HDL size, and HDL-phospholipids, and greater increases in small HDL-P and HDL-Triglycerides were associated with higher C3 and C4 over time, although associations with C4 were weaker than those with C3. CONCLUSION Complement proteins C3 and C4 significantly rise around menopause with C3 showing the steepest rise. Changes in HDL subclasses, overall size, and lipid content, over the MT may play a role in modulating inflammation responses known to be related to atherosclerosis. These results raise the possibility that novel therapeutic agents focusing on HDL might contribute to CVD protection by modulating inflammation.
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Affiliation(s)
- Samar R El Khoudary
- University of Pittsburgh School of Public Health, Public Health Building, 130 De Soto St, Pittsburgh, PA 15261, USA (Drs Khoudary, Chen, Brooks, and Orchard).
| | - Xirun Chen
- University of Pittsburgh School of Public Health, Public Health Building, 130 De Soto St, Pittsburgh, PA 15261, USA (Drs Khoudary, Chen, Brooks, and Orchard).
| | - Dan McConnell
- University of Michigan Department of Epidemiology, 1415 Washington Heights, Ann Arbor, MI 48109, USA (Dr McConnell).
| | - Maria M Brooks
- University of Pittsburgh School of Public Health, Public Health Building, 130 De Soto St, Pittsburgh, PA 15261, USA (Drs Khoudary, Chen, Brooks, and Orchard).
| | - Jeff Billheimer
- University of Pennsylvania Perelman School of Medicine, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA (Dr Billheimer).
| | - Trevor J Orchard
- University of Pittsburgh School of Public Health, Public Health Building, 130 De Soto St, Pittsburgh, PA 15261, USA (Drs Khoudary, Chen, Brooks, and Orchard).
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12
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Quevedo-Abeledo JC, Martín-González C, Ferrer-Moure C, de Armas-Rillo L, Hernandez-Hernandez MV, González-Gay MÁ, Ferraz-Amaro I. Key Molecules of Triglycerides Pathway Metabolism Are Disturbed in Patients With Systemic Lupus Erythematosus. Front Immunol 2022; 13:827355. [PMID: 35615358 PMCID: PMC9124762 DOI: 10.3389/fimmu.2022.827355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 04/13/2022] [Indexed: 11/22/2022] Open
Abstract
Background Elevated triglycerides or triglyceride-rich lipoproteins are an additional cause of cardiovascular (CV) disease. Given that patients with systemic lupus erythematosus (SLE) have a high prevalence of premature CV disease and show an altered lipid profile, our objective was to study whether three molecules that play a central role in the triglyceride metabolism: apolipoprotein C-III (ApoC3), angiopoietin-like protein 4 (ANGPLT4), and lipoprotein lipase (LPL) differ between SLE patients and controls, and how they are related to disease characteristics, including disease damage. Methods Cross-sectional study that included 347 women, 185 of them diagnosed with SLE and 162 age-matched controls. ANGPTL4, ApoC3 and LPL, and standard lipid profiles were analyzed in SLE patients and controls. A multivariable analysis was performed to assess whether ANGPTL4, ApoC3 and LPL molecules differ between patients and controls and to study their relationship with SLE disease damage. Results After fully multivariable analysis that included classic CV risk factors, and the modifications that the disease itself produces over the lipid profile, it was found that ApoC3 was significantly lower (beta coef. -1.2 [95%CI -1.6- -0.8) mg/dl, <0.001), and ANGPTL4 (beta coef. 63 [95%CI 35-90] ng/ml, <0.001) and LPL (beta coef. 79 [95%CI 30-128] ng/ml, p=0.002) significantly higher in patients with SLE compared to controls. Disease damage score was significantly and independently associated with higher serum levels of LPL (beta coef. 23 [95%CI 10-35] ng/ml, p=0.001). Mediation analysis suggested that the relationship between disease damage and LPL was direct and not mediated by ApoC3 or ANGPLT4. Conclusion The ApoC3, ANGPLT4 and LPL axis is disrupted in patients with SLE. Disease damage explains this disturbance.
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Affiliation(s)
| | - Candelaria Martín-González
- Division of Internal Medicine, Hospital Universitario de Canarias, Tenerife, Spain
- Internal Medicine Department, University of La Laguna, Tenerife, Spain
| | - Carmen Ferrer-Moure
- Division of Central Laboratory, Hospital Universitario de Canarias, Tenerife, Spain
| | | | | | - Miguel Á. González-Gay
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Hospital Universitario Marqués de Valdecilla, Instituto de investigación Sanitaria Valdecilla (IDIVAL), Santander, Spain
- Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, Universidad de Cantabria, Santander, Spain
- Cardiovascular Pathophysiology and Genomics Research Unit, Faculty of Health Sciences, School of Physiology, University of the Witwatersrand, Johannesburg, South Africa
- *Correspondence: Iván Ferraz-Amaro, ; Miguel Á. González-Gay,
| | - Iván Ferraz-Amaro
- Internal Medicine Department, University of La Laguna, Tenerife, Spain
- Division of Rheumatology, Hospital Universitario de Canarias, Tenerife, Spain
- *Correspondence: Iván Ferraz-Amaro, ; Miguel Á. González-Gay,
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13
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High-Density Lipoprotein Subfractions: Much Ado about Nothing or Clinically Important? Biomedicines 2021; 9:biomedicines9070836. [PMID: 34356900 PMCID: PMC8301429 DOI: 10.3390/biomedicines9070836] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/24/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
High-density lipoproteins (HDL) are a heterogenous group of plasma molecules with a large variety in composition. There is a wide specter in lipid content and the number of different proteins that has been associated with HDL is approaching 100. Given this heterogeneity and the fact that the total amount of HDL is inversely related to the risk of coronary heart disease (CHD), there has been increasing interest in the function of specific HDL subgroups and in what way measuring and quantifying these subgroups could be of clinical importance in determining individual CHD risk. If certain subgroups appear to be more protective than others, it may also in the future be possible to pharmacologically increase beneficial and decrease harmful subgroups in order to reduce CHD risk. In this review we give a short historical perspective, summarize some of the recent clinical findings regarding HDL subclassifications and discuss why such classification may or may not be of clinical relevance.
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