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Vaghasiya J, Jha A, Basu S, Bagan A, Jengsuksavat SK, Ravandi A, Pascoe CD, Halayko AJ. Neutralizing Oxidized Phosphatidylcholine Reduces Airway Inflammation and Hyperreactivity in a Murine Model of Allergic Asthma. BIOLOGY 2024; 13:627. [PMID: 39194564 DOI: 10.3390/biology13080627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/12/2024] [Accepted: 08/15/2024] [Indexed: 08/29/2024]
Abstract
Oxidative stress is associated with asthma pathobiology. We reported that oxidized phosphatidylcholines (OxPCs) are mediators of oxidative stress and accumulate in the lung in response to allergen challenge. The current study begins to unravel mechanisms for OxPC accumulation in the lung, providing the first insights about how OxPCs underpin allergic airway pathophysiology, and pre-clinical testing of selective neutralization of OxPCs in a murine model of allergic asthma. We hypothesized that intranasal delivery of E06, a natural IgM antibody that neutralizes the biological activity of OxPCs, can ameliorate allergen-induced airway inflammation and airway hyperresponsiveness. Adult BALB/c mice were intranasally (i.n.) challenged with house dust mite (HDM) (25 μg/mouse, 2 weeks). Some animals also received E06 monoclonal antibody (mAb) (10 µg) i.n. 1 hr before each HDM challenge. HDM challenge reduced mRNA for anti-oxidant genes (SOD1, SOD2, HO-1, and NFE2L2) in the lung by several orders of magnitude (p < 0.05). Concomitantly, total immune cell number in bronchoalveolar lavage fluid (BALF) increased significantly (p < 0.001). E06 mAb treatment prevented allergen-induced BALF immune cell number by 43% (p < 0.01). This included a significant blockade of eosinophils (by 48%, p < 0.001), neutrophils (by 80%, p < 0.001), macrophages (by 80%, p < 0.05), and CD4 (by 30%, p < 0.05) and CD8 (by 42%, p < 0.01) lymphocytes. E06 effects correlated with a significant reduction in TNF (by 64%, p < 0.001) and IL-1β (by 75%, p < 0.05) and a trend to diminish accumulation of other cytokines (e.g., IL-4, -10, and -33, and IFN-γ). E06 mAb treatment also inhibited HDM exposure-induced increases in total respiratory resistance and small airway resistance by 24% and 26%, respectively. In conclusion, prophylactic treatment with an OxPC-neutralizing antibody significantly limits allergen-induced airway inflammation and airway hyperresponsiveness, suggesting that OxPCs are important mediators of oxidative stress-associated allergic lung pathophysiology.
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Affiliation(s)
- Jignesh Vaghasiya
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Aruni Jha
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Sujata Basu
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Alaina Bagan
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Siwon K Jengsuksavat
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Amir Ravandi
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada
- Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Christopher D Pascoe
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Andrew J Halayko
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB R3E 3P4, Canada
- Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
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Nicholls SJ. Therapeutic Potential of Lipoprotein(a) Inhibitors. Drugs 2024; 84:637-643. [PMID: 38849700 PMCID: PMC11196316 DOI: 10.1007/s40265-024-02046-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2024] [Indexed: 06/09/2024]
Abstract
Increasing evidence has implicated lipoprotein(a) [Lp(a)] in the causality of atherosclerosis and calcific aortic stenosis. This has stimulated immense interest in developing novel approaches to integrating Lp(a) into the setting of cardiovascular prevention. Current guidelines advocate universal measurement of Lp(a) levels, with the potential to influence cardiovascular risk assessment and triage of higher-risk patients to use of more intensive preventive therapies. In parallel, considerable activity has been undertaken to develop novel therapeutics with the potential to achieve selective and substantial reductions in Lp(a) levels. Early studies of antisense oligonucleotides (e.g., mipomersen, pelacarsen), RNA interference (e.g., olpasiran, zerlasiran, lepodisiran) and small molecule inhibitors (e.g., muvalaplin) have demonstrated effective Lp(a) lowering and good tolerability. These agents are moving forward in clinical development, in order to determine whether Lp(a) lowering reduces cardiovascular risk. The results of these studies have the potential to transform our approach to the prevention of cardiovascular disease.
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Affiliation(s)
- Stephen J Nicholls
- Victorian Heart Institute, Monash University, 631 Blackburn Road, Clayton, Melbourne, VIC, 3168, Australia.
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Bhatia HS, Becker RC, Leibundgut G, Patel M, Lacaze P, Tonkin A, Narula J, Tsimikas S. Lipoprotein(a), platelet function and cardiovascular disease. Nat Rev Cardiol 2024; 21:299-311. [PMID: 37938756 PMCID: PMC11216952 DOI: 10.1038/s41569-023-00947-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/10/2023] [Indexed: 11/09/2023]
Abstract
Lipoprotein(a) (Lp(a)) is associated with atherothrombosis through several mechanisms, including putative antifibrinolytic properties. However, genetic association studies have not demonstrated an association between high plasma levels of Lp(a) and the risk of venous thromboembolism, and studies in patients with highly elevated Lp(a) levels have shown that Lp(a) lowering does not modify the clotting properties of plasma ex vivo. Lp(a) can interact with several platelet receptors, providing biological plausibility for a pro-aggregatory effect. Observational clinical studies suggest that elevated plasma Lp(a) concentrations are associated with worse long-term outcomes in patients undergoing revascularization. Furthermore, in these patients, those with elevated plasma Lp(a) levels derive more benefit from prolonged dual antiplatelet therapy than those with normal Lp(a) levels. The ASPREE trial in healthy older individuals treated with aspirin showed a reduction in ischaemic events in those who had a single-nucleotide polymorphism in LPA that is associated with elevated Lp(a) levels in plasma, without an increase in bleeding events. In this Review, we re-examine the role of Lp(a) in the regulation of platelet function and suggest areas of research to define further the clinical relevance to cardiovascular disease of the observed associations between Lp(a) and platelet function.
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Affiliation(s)
- Harpreet S Bhatia
- Division of Cardiovascular Medicine, Sulpizio Cardiovascular Center, University of California San Diego, La Jolla, CA, USA
| | - Richard C Becker
- Heart, Lung and Vascular Institute, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Gregor Leibundgut
- Division of Cardiology, University Hospital of Basel, Basel, Switzerland
| | - Mitul Patel
- Division of Cardiovascular Medicine, Sulpizio Cardiovascular Center, University of California San Diego, La Jolla, CA, USA
| | - Paul Lacaze
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Andrew Tonkin
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Jagat Narula
- Mount Sinai Heart, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sotirios Tsimikas
- Division of Cardiovascular Medicine, Sulpizio Cardiovascular Center, University of California San Diego, La Jolla, CA, USA.
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Abstract
Prolonged or excessive exposure to oxidized phospholipids (OxPLs) generates chronic inflammation. OxPLs are present in atherosclerotic lesions and can be detected in plasma on apolipoprotein B (apoB)-containing lipoproteins. When initially conceptualized, OxPL-apoB measurement in plasma was expected to reflect the concentration of minimally oxidized LDL, but, surprisingly, it correlated more strongly with plasma lipoprotein(a) (Lp(a)) levels. Indeed, experimental and clinical studies show that Lp(a) particles carry the largest fraction of OxPLs among apoB-containing lipoproteins. Plasma OxPL-apoB levels provide diagnostic information on the presence and extent of atherosclerosis and improve the prognostication of peripheral artery disease and first and recurrent myocardial infarction and stroke. The addition of OxPL-apoB measurements to traditional cardiovascular risk factors improves risk reclassification, particularly in patients in intermediate risk categories, for whom improving decision-making is most impactful. Moreover, plasma OxPL-apoB levels predict cardiovascular events with similar or greater accuracy than plasma Lp(a) levels, probably because this measurement reflects both the genetics of elevated Lp(a) levels and the generalized or localized oxidation that modifies apoB-containing lipoproteins and leads to inflammation. Plasma OxPL-apoB levels are reduced by Lp(a)-lowering therapy with antisense oligonucleotides and by lipoprotein apheresis, niacin therapy and bariatric surgery. In this Review, we discuss the role of role OxPLs in the pathophysiology of atherosclerosis and Lp(a) atherogenicity, and the use of OxPL-apoB measurement for improving prognosis, risk reclassification and therapeutic interventions.
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Affiliation(s)
- Sotirios Tsimikas
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, CA, USA.
| | - Joseph L Witztum
- Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, CA, USA
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5
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Ghaffari MH, Daniel JB, Sadri H, Schuchardt S, Martín-Tereso J, Sauerwein H. Longitudinal characterization of the metabolome of dairy cows transitioning from one lactation to the next: Investigations in blood serum. J Dairy Sci 2024; 107:1263-1285. [PMID: 37777004 DOI: 10.3168/jds.2023-23841] [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: 06/05/2023] [Accepted: 09/07/2023] [Indexed: 10/02/2023]
Abstract
The objective of this study was to characterize changes in the serum metabolome and various indicators of oxidative balance in dairy cows starting 2 wk before dry-off and continuing until wk 16 of lactation. Twelve Holstein dairy cows (body weight 745 ± 71 kg, body condition score 3.43 ± 0.66; mean ± SD) were housed in a tiestall barn from 10 wk before to 16 wk after parturition. Cows were dried off 6 wk before the expected calving date (mean dry period length = 42 d). From 8 wk before calving to 16 wk after calving, blood samples were taken weekly to study redox metabolism by determining antioxidant capacity, measured as the ferric-reducing ability of plasma, reactive oxidative metabolites, oxidative stress index, oxidative damage of lipids, measured as thiobarbituric acid reactive substances, and glutathione peroxidase activity. According to these results, dairy cows had the lowest serum antioxidant capacity and greater levels of oxidative stress during the dry-off period and the early postpartum period. For metabolomics, a subset of serum samples including wk -7 (before dry-off), -5 (after dry-off), -1, 1, 5, 10, and 15 relative to calving were used. A targeted metabolomics approach was performed using liquid chromatography and flow injection with electrospray ionization triple quadrupole mass spectrometry using the MxP Quant 500 kit (Biocrates Life Sciences AG). A total of 240 metabolites in serum were used in the final data analysis. Principal component analysis revealed a clear separation by days of sampling, indicating a remarkable shift in metabolic phenotype between the dry period and late and early lactation. Changes in many non-lipid metabolites associated with one-carbon metabolism, the tricarboxylic acid cycle, the urea cycle, and AA catabolism were observed in the study, with changes in AA serum concentrations likely related to factors such as energy and nitrogen balance, digestive efficiency, and changing diets. The study confirmed an extensive remodeling of the serum lipidome in peripartum dairy cows, highlighting the importance of changes in acylcarnitine (acylCN), phosphatidylcholines (PC), and triacylglycerols (TG), as they play a crucial role in lipid metabolism. Results showed that short-chain acylCN increased after dry-off and decreased thereafter, whereas lipid-derived acylCN increased around parturition, suggesting that more fatty acids could enter mitochondria. Phospholipids and sphingolipids in serum showed changes during lactation. In particular, concentrations of sphingomyelins, PC, and lysoPC decreased around calving but increased in mid- and late lactation. In contrast, concentrations of TG remained consistently low after parturition. The serum concentrations of bile acids fluctuated during the dry period and lactation, with glycocholic acid, cholic acid, glycodeoxycholic acid, and taurocholic acid showing the greatest concentrations. These changes are likely due to the interplay of diet, liver function, and the ability of the gut microbiota to convert primary to secondary bile acids. Overall, these descriptive results may aid in hypothesis generation and in the design and interpretation of future metabolite-based studies in dairy cows. Furthermore, they contribute to our understanding of the physiological ranges in serum metabolites relative to the lactation cycle of the dairy cow.
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Affiliation(s)
- M H Ghaffari
- Institute of Animal Science, Physiology Unit, University of Bonn, 53115 Bonn, Germany.
| | - J B Daniel
- Trouw Nutrition R&D, 3800 AG, Amersfoort, the Netherlands.
| | - H Sadri
- Department of Clinical Science, Faculty of Veterinary Medicine, University of Tabriz, 5166616471 Tabriz, Iran
| | - S Schuchardt
- Fraunhofer Institute for Toxicology and Experimental Medicine, 30625 Hannover, Germany
| | | | - H Sauerwein
- Institute of Animal Science, Physiology Unit, University of Bonn, 53115 Bonn, Germany
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6
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Vaghasiya J, Dalvand A, Sikarwar A, Mangat D, Ragheb M, Kowatsch K, Pandey D, Hosseini SM, Hackett TL, Karimi-Abdolrezaee S, Ravandi A, Pascoe CD, Halayko AJ. Oxidized Phosphatidylcholines Trigger TRPA1 and Ryanodine Receptor-dependent Airway Smooth Muscle Contraction. Am J Respir Cell Mol Biol 2023; 69:649-665. [PMID: 37552547 DOI: 10.1165/rcmb.2022-0457oc] [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: 11/26/2022] [Accepted: 08/07/2023] [Indexed: 08/10/2023] Open
Abstract
Asthma pathobiology includes oxidative stress that modifies cell membranes and extracellular phospholipids. Oxidized phosphatidylcholines (OxPCs) in lung lavage from allergen-challenged human participants correlate with airway hyperresponsiveness and induce bronchial narrowing in murine thin-cut lung slices. OxPCs activate many signaling pathways, but mechanisms for these responses are unclear. We hypothesize that OxPCs stimulate intracellular free Ca2+ flux to trigger airway smooth muscle contraction. Intracellular Ca2+ flux was assessed in Fura-2-loaded, cultured human airway smooth muscle cells. Oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine (OxPAPC) induced an approximately threefold increase in 20 kD myosin light chain phosphorylation. This correlated with a rapid peak in intracellular cytoplasmic Ca2+ concentration ([Ca2+]i) (143 nM) and a sustained plateau that included slow oscillations in [Ca2+]i. Sustained [Ca2+]i elevation was ablated in Ca2+-free buffer and by TRPA1 inhibition. Conversely, OxPAPC-induced peak [Ca2+]i was unaffected in Ca2+-free buffer, by TRPA1 inhibition, or by inositol 1,4,5-triphosphate receptor inhibition. Peak [Ca2+]i was ablated by pharmacologic inhibition of ryanodine receptor (RyR) Ca2+ release from the sarcoplasmic reticulum. Inhibiting the upstream RyR activator cyclic adenosine diphosphate ribose with 8-bromo-cyclic adenosine diphosphate ribose was sufficient to abolish OxPAPC-induced cytoplasmic Ca2+ flux. OxPAPC induced ∼15% bronchial narrowing in thin-cut lung slices that could be prevented by pharmacologic inhibition of either TRPA1 or RyR, which similarly inhibited OxPC-induced myosin light chain phosphorylation in cultured human airway smooth muscle cells. In summary, OxPC mediates airway narrowing by triggering TRPA1 and RyR-mediated mobilization of intracellular and extracellular Ca2+ in airway smooth muscle. These data suggest that OxPC in the airways of allergen-challenged subjects and subjects with asthma may contribute to airway hyperresponsiveness.
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Affiliation(s)
- Jignesh Vaghasiya
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Azadeh Dalvand
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Anurag Sikarwar
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Divleen Mangat
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Mirna Ragheb
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Katarina Kowatsch
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Dheerendra Pandey
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Seyed Mojtaba Hosseini
- Department of Physiology and Pathophysiology
- Manitoba Multiple Sclerosis Research Center, and
| | - Tillie L Hackett
- Department of Anesthesiology, Pharmacology & Therapeutics, Centre for Heart Lung Innovation, University of British Columbia, Vancouver, British Columbia, Canada; and
| | | | - Amir Ravandi
- Department of Physiology and Pathophysiology
- Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
| | - Christopher D Pascoe
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Andrew J Halayko
- Department of Physiology and Pathophysiology
- Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
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7
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Domingues N, Gaifem J, Matthiesen R, Saraiva DP, Bento L, Marques ARA, Soares MIL, Sampaio J, Klose C, Surma MA, Almeida MS, Rodrigues G, Gonçalves PA, Ferreira J, E Melo RG, Pedro LM, Simons K, Pinho E Melo TMVD, Cabral MG, Jacinto A, Silvestre R, Vaz W, Vieira OV. Cholesteryl hemiazelate identified in CVD patients causes in vitro and in vivo inflammation. J Lipid Res 2023; 64:100419. [PMID: 37482218 PMCID: PMC10450993 DOI: 10.1016/j.jlr.2023.100419] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/25/2023] Open
Abstract
Oxidation of PUFAs in LDLs trapped in the arterial intima plays a critical role in atherosclerosis. Though there have been many studies on the atherogenicity of oxidized derivatives of PUFA-esters of cholesterol, the effects of cholesteryl hemiesters (ChEs), the oxidation end products of these esters, have not been studied. Through lipidomics analyses, we identified and quantified two ChE types in the plasma of CVD patients and identified four ChE types in human endarterectomy specimens. Cholesteryl hemiazelate (ChA), the ChE of azelaic acid (n-nonane-1,9-dioic acid), was the most prevalent ChE identified in both cases. Importantly, human monocytes, monocyte-derived macrophages, and neutrophils exhibit inflammatory features when exposed to subtoxic concentrations of ChA in vitro. ChA increases the secretion of proinflammatory cytokines such as interleukin-1β and interleukin-6 and modulates the surface-marker profile of monocytes and monocyte-derived macrophage. In vivo, when zebrafish larvae were fed with a ChA-enriched diet, they exhibited neutrophil and macrophage accumulation in the vasculature in a caspase 1- and cathepsin B-dependent manner. ChA also triggered lipid accumulation at the bifurcation sites of the vasculature of the zebrafish larvae and negatively impacted their life expectancy. We conclude that ChA behaves as an endogenous damage-associated molecular pattern with inflammatory and proatherogenic properties.
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Affiliation(s)
- Neuza Domingues
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, (NMS, FCM), Universidade Nova de Lisboa, Lisboa, Portugal
| | - Joana Gaifem
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal and ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rune Matthiesen
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, (NMS, FCM), Universidade Nova de Lisboa, Lisboa, Portugal
| | - Diana P Saraiva
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, (NMS, FCM), Universidade Nova de Lisboa, Lisboa, Portugal
| | - Luís Bento
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, (NMS, FCM), Universidade Nova de Lisboa, Lisboa, Portugal
| | - André R A Marques
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, (NMS, FCM), Universidade Nova de Lisboa, Lisboa, Portugal
| | - Maria I L Soares
- Department of Chemistry, Coimbra Chemistry Centre, Institute of Molecular Sciences, University of Coimbra, Coimbra, Portugal
| | | | | | | | - Manuel S Almeida
- Hospital Santa Cruz, Centro Hospitalar de Lisboa Ocidental, Carnaxide, Portugal
| | - Gustavo Rodrigues
- Hospital Santa Cruz, Centro Hospitalar de Lisboa Ocidental, Carnaxide, Portugal
| | | | - Jorge Ferreira
- Hospital Santa Cruz, Centro Hospitalar de Lisboa Ocidental, Carnaxide, Portugal
| | - Ryan Gouveia E Melo
- Department of Vascular Surgery, Hospital de Santa Maria, Centro Hospitalar Universitario Lisboa Norte (CHULN), Lisboa, Portugal
| | - Luís Mendes Pedro
- Department of Vascular Surgery, Hospital de Santa Maria, Centro Hospitalar Universitario Lisboa Norte (CHULN), Lisboa, Portugal
| | | | - Teresa M V D Pinho E Melo
- Department of Chemistry, Coimbra Chemistry Centre, Institute of Molecular Sciences, University of Coimbra, Coimbra, Portugal
| | - M Guadalupe Cabral
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, (NMS, FCM), Universidade Nova de Lisboa, Lisboa, Portugal
| | - Antonio Jacinto
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, (NMS, FCM), Universidade Nova de Lisboa, Lisboa, Portugal
| | - Ricardo Silvestre
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal and ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Winchil Vaz
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, (NMS, FCM), Universidade Nova de Lisboa, Lisboa, Portugal
| | - Otília V Vieira
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, (NMS, FCM), Universidade Nova de Lisboa, Lisboa, Portugal.
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Kormish J, Ghuman T, Liu RY, Srinathan SK, Tan L, Graham K, Enns S, Buduhan G, Halayko AJ, Pascoe CD, Kidane B. Temporal and Spatial Patterns of Inflammation and Tissue Injury in Patients with Postoperative Respiratory Failure after Lung Resection Surgery: A Nested Case-Control Study. Int J Mol Sci 2023; 24:10051. [PMID: 37373199 DOI: 10.3390/ijms241210051] [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: 04/12/2023] [Revised: 06/06/2023] [Accepted: 06/10/2023] [Indexed: 06/29/2023] Open
Abstract
Thoracic surgeries involving resection of lung tissue pose a risk of severe postoperative pulmonary complications, including acute respiratory distress syndrome (ARDS) and respiratory failure. Lung resections require one-lung ventilation (OLV) and, thus, are at higher risk of ventilator-induced lung injury (VILI) attributable to barotrauma and volutrauma in the one ventilated lung, as well as hypoxemia and reperfusion injury on the operated lung. Further, we also aimed to assess the differences in localized and systemic markers of tissue injury/inflammation in those who developed respiratory failure after lung surgery versus matched controls who did not develop respiratory failure. We aimed to assess the different inflammatory/injury marker patterns induced in the operated and ventilated lung and how this compared to the systemic circulating inflammatory/injury marker pattern. A case-control study nested within a prospective cohort study was performed. Patients with postoperative respiratory failure after lung surgery (n = 5) were matched with control patients (n = 6) who did not develop postoperative respiratory failure. Biospecimens (arterial plasma, bronchoalveolar lavage separately from ventilated and operated lungs) were obtained from patients undergoing lung surgery at two timepoints: (1) just prior to initiation of OLV and (2) after lung resection was completed and OLV stopped. Multiplex electrochemiluminescent immunoassays were performed for these biospecimen. We quantified 50 protein biomarkers of inflammation and tissue injury and identified significant differences between those who did and did not develop postoperative respiratory failure. The three biospecimen types also display unique biomarker patterns.
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Affiliation(s)
- Jay Kormish
- Section of Thoracic Surgery, Department of Surgery, Health Sciences Centre, Winnipeg, MB R3A 1R9, Canada
- Department of Surgery, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
- Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3A 1R9, Canada
| | - Tejas Ghuman
- Department of Surgery, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
| | - Richard Y Liu
- Section of Thoracic Surgery, Department of Surgery, Health Sciences Centre, Winnipeg, MB R3A 1R9, Canada
- Department of Surgery, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
| | - Sadeesh K Srinathan
- Section of Thoracic Surgery, Department of Surgery, Health Sciences Centre, Winnipeg, MB R3A 1R9, Canada
- Department of Surgery, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
| | - Lawrence Tan
- Department of Surgery, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
| | - Kristen Graham
- Section of Thoracic Surgery, Department of Surgery, Health Sciences Centre, Winnipeg, MB R3A 1R9, Canada
| | - Stephanie Enns
- Section of Thoracic Surgery, Department of Surgery, Health Sciences Centre, Winnipeg, MB R3A 1R9, Canada
| | - Gordon Buduhan
- Section of Thoracic Surgery, Department of Surgery, Health Sciences Centre, Winnipeg, MB R3A 1R9, Canada
- Department of Surgery, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
| | - Andrew J Halayko
- Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3A 1R9, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
| | - Christopher D Pascoe
- Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3A 1R9, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
| | - Biniam Kidane
- Section of Thoracic Surgery, Department of Surgery, Health Sciences Centre, Winnipeg, MB R3A 1R9, Canada
- Department of Surgery, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
- Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3A 1R9, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3A 1R9, Canada
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9
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Taleb A, Willeit P, Amir S, Perkmann T, Kozma MO, Watzenböck ML, Binder CJ, Witztum JL, Tsimikas S. High immunoglobulin-M levels to oxidation-specific epitopes are associated with lower risk of acute myocardial infarction. J Lipid Res 2023; 64:100391. [PMID: 37211249 PMCID: PMC10275726 DOI: 10.1016/j.jlr.2023.100391] [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: 02/01/2023] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 05/23/2023] Open
Abstract
Immunoglobulin M (IgM) autoantibodies to oxidation-specific epitopes (OSEs) can be present at birth and protect against atherosclerosis in experimental models. This study sought to determine whether high titers of IgM titers to OSE (IgM OSE) are associated with a lower risk of acute myocardial infarction (AMI) in humans. IgM to malondialdehyde (MDA)-LDL, phosphocholine-modified BSA, IgM apolipoprotein B100-immune complexes, and a peptide mimotope of MDA were measured within 24 h of first AMI in 4,559 patients and 4,617 age- and sex-matched controls in the Pakistan Risk of Myocardial Infarction Study. Multivariate-adjusted logistic regression was used to estimate odds ratio (OR) and 95% confidence interval for AMI. All four IgM OSEs were lower in AMI versus controls (P < 0.001 for all). Males, smokers and individuals with hypertension and diabetes had lower levels of all four IgM OSE than unaffected individuals (P < 0.001 for all). Compared to the lowest quintile, the highest quintiles of IgM MDA-LDL, phosphocholine-modified BSA, IgM apolipoprotein B100-immune complexes, and MDA mimotope P1 had a lower OR of AMI: OR (95% confidence interval) of 0.67 (0.58-0.77), 0.64 (0.56-0.73), 0.70 (0.61-0.80) and 0.72 (0.62-0.82) (P < 0.001 for all), respectively. Upon the addition of IgM OSE to conventional risk factors, the C-statistic improved by 0.0062 (0.0028-0.0095) and net reclassification by 15.5% (11.4-19.6). These findings demonstrate that IgM OSE provides clinically meaningful information and supports the hypothesis that higher levels of IgM OSE may be protective against AMI.
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Affiliation(s)
- Adam Taleb
- Division of Cardiovascular Medicine, Vascular Medicine Program, University of California San Diego, La Jolla, CA, USA
| | - Peter Willeit
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria; Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Shahzada Amir
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Thomas Perkmann
- Department of Laboratory Medicine, Medical University of Vienna, Vienna Austria
| | - Maria Ozsvar Kozma
- Department of Laboratory Medicine, Medical University of Vienna, Vienna Austria
| | - Martin L Watzenböck
- Department of Laboratory Medicine, Medical University of Vienna, Vienna Austria
| | - Christoph J Binder
- Department of Laboratory Medicine, Medical University of Vienna, Vienna Austria
| | - Joseph L Witztum
- Division of Endocrinology and Metabolism, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Sotirios Tsimikas
- Division of Cardiovascular Medicine, Vascular Medicine Program, University of California San Diego, La Jolla, CA, USA.
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10
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Fan L, Chen J, Pan L, Xin X, Geng B, Yang L, Wang Q, Ma W, Lou Y, Bian J, Cui X, Li J, Wang L, Chen Z, Wang W, Cui C, Li S, Gao Q, Song Q, Deng Y, Fan J, Yu J, Zhang H, Li Y, Cai J. Alterations of Gut Microbiome, Metabolome, and Lipidome in Takayasu Arteritis. Arthritis Rheumatol 2023; 75:266-278. [PMID: 36054683 DOI: 10.1002/art.42331] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 07/27/2022] [Accepted: 08/11/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Mounting evidence has linked microbiome and metabolome to systemic autoimmunity and cardiovascular diseases (CVDs). Takayasu arteritis (TAK) is a rare disease that shares features of immune-related inflammatory diseases and CVDs, about which there is relatively limited information. This study was undertaken to characterize gut microbial dysbiosis and its crosstalk with phenotypes in TAK. METHODS To address the discriminatory signatures, we performed shotgun sequencing of fecal metagenome across a discovery cohort (n = 97) and an independent validation cohort (n = 75) including TAK patients, healthy controls, and controls with Behçet's disease (BD). Interrogation of untargeted metabolomics and lipidomics profiling of plasma and fecal samples were also used to refine features mediating associations between microorganisms and TAK phenotypes. RESULTS A combined model of bacterial species, including unclassified Escherichia, Veillonella parvula, Streptococcus parasanguinis, Dorea formicigenerans, Bifidobacterium adolescentis, Lachnospiraceae bacterium 7 1 58FAA, Escherichia coli, Streptococcus salivarius, Klebsiella pneumoniae, Bifidobacterium longum, and Lachnospiraceae Bacterium 5 1 63FAA, distinguished TAK patients from controls with areas under the curve (AUCs) of 87.8%, 85.9%, 81.1%, and 71.1% in training, test, and validation sets including healthy or BD controls, respectively. Diagnostic species were directly or indirectly (via metabolites or lipids) correlated with TAK phenotypes of vascular involvement, inflammation, discharge medication, and prognosis. External validation against publicly metagenomic studies (n = 184) on hypertension, atrial fibrillation, and healthy controls, confirmed the diagnostic accuracy of the model for TAK. CONCLUSION This study first identifies the discriminatory gut microbes in TAK. Dysbiotic microbes are also linked to TAK phenotypes directly or indirectly via metabolic and lipid modules. Further explorations of the microbiome-metagenome interface in TAK subtype prediction and pathogenesis are suggested.
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Affiliation(s)
- Luyun Fan
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Junru Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao, China, and Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Lili Pan
- Department of Rheumatology and Immunology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xiaohong Xin
- Department of Nephrology, Precision Medicine Center, The Affiliated People's Hospital of Shanxi Medical University, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Bin Geng
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lirui Yang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Qian Wang
- Department of Nephrology, Precision Medicine Center, The Affiliated People's Hospital of Shanxi Medical University, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Wenjun Ma
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ying Lou
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jin Bian
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiao Cui
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jing Li
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Hypertension, Beijing, China
| | - Lu Wang
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhenzhen Chen
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wenjie Wang
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Changting Cui
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuangyue Li
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qiannan Gao
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qirui Song
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yue Deng
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiali Fan
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiachen Yu
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huimin Zhang
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yafeng Li
- Department of Nephrology, Shanxi Provincial People's Hospital (Fifth Hospital) of Shanxi Medical University, Core Laboratory, Shanxi Provincial People's Hospital (Fifth Hospital) of Shanxi Medical University, Shanxi Provincial Key Laboratory of Kidney Disease, and Academy of Microbial Ecology, Shanxi Medical University, Taiyuan, China
| | - Jun Cai
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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11
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Stürzebecher PE, Schorr JJ, Klebs SHG, Laufs U. Trends and consequences of lipoprotein(a) testing: Cross-sectional and longitudinal health insurance claims database analyses. Atherosclerosis 2023; 367:24-33. [PMID: 36764050 DOI: 10.1016/j.atherosclerosis.2023.01.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/09/2023] [Accepted: 01/18/2023] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND AIMS Lipoprotein(a) (Lp(a)) is associated with an increased risk of atherosclerotic cardiovascular disease (ASCVD). Our goal was to characterize patients undergoing Lp(a) testing and to assess the impact of Lp(a) testing on treatment changes and subsequent ASCVD events. METHODS A cross-sectional and a longitudinal claims data analysis were performed on 4 million patient records in Germany. Patients were followed up for a maximum of 4 years. RESULTS In 2015 and 2018, 0.25% and 0.34% of patients were tested, respectively. Testing was more frequent in younger women in the overall population, and in men in the ASCVD population. Patients tested for Lp(a) had more comorbidities and higher ASCVD risk compared to matched control patients. ASCVD hospitalizations were more frequent prior to the first Lp(a) test (5.55 vs 1.42 per 100/person-years). The mortality rate of the Lp(a)-tested cohort and the control group was similar. Mortality was lower in patients with prior ASCVD and Lp(a) testing compared to matched controls with prior ASCVD and no Lp(a) test (2.30 vs 3.64 per 100/person-years, p <0.001). Patients with Lp(a) test received more laboratory examinations and cardiovascular medications and had more visits with specialized physicians. CONCLUSIONS Lp(a) testing is rarely performed even in patients with very high cardiovascular risk. Patients tested for Lp(a) have more comorbidities and a higher ASCVD risk. Lp(a) testing is associated with more intensive preventive treatment and with positive effects on clinical outcomes and survival. The data support the value of Lp(a) measurements to characterize ASCVD risk and to improve ASCVD prevention.
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Affiliation(s)
- Paulina E Stürzebecher
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Leipzig, 04103, Germany.
| | | | | | - Ulrich Laufs
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Leipzig, 04103, Germany
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12
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Pantazi D, Tellis C, Tselepis AD. Oxidized phospholipids and lipoprotein-associated phospholipase A 2 (Lp-PLA 2 ) in atherosclerotic cardiovascular disease: An update. Biofactors 2022; 48:1257-1270. [PMID: 36192834 DOI: 10.1002/biof.1890] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/06/2022] [Indexed: 12/24/2022]
Abstract
Inflammation and oxidative stress conditions lead to a variety of oxidative modifications of lipoprotein phospholipids implicated in the occurrence and development of atherosclerotic lesions. Lipoprotein-associated phospholipase A2 (Lp-PLA2 ) is established as an independent risk biomarker of atherosclerosis-related cardiovascular disease (ASCVD) and mediates vascular inflammation through the regulation of lipid metabolism in the blood and in atherosclerotic lesions. Lp-PLA2 is associated with low- and high-density lipoproteins and Lipoprotein (a) in human plasma and specifically hydrolyzes oxidized phospholipids involved in oxidative stress modification. Several oxidized phospholipids (OxPLs) subspecies can be detoxified through enzymatic degradation by Lp-PLA2 activation, forming lysophospholipids and oxidized non-esterified fatty acids (OxNEFAs). Lysophospholipids promote the expression of adhesion molecules, stimulate cytokines production (TNF-α, IL-6), and attract macrophages to the arterial intima. The present review article discusses new data on the functional roles of OxPLs and Lp-PLA2 associated with lipoproteins.
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Affiliation(s)
- Despoina Pantazi
- Atherothrombosis Research Centre/Laboratory of Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Constantinos Tellis
- Atherothrombosis Research Centre/Laboratory of Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Alexandros D Tselepis
- Atherothrombosis Research Centre/Laboratory of Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
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13
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Ruder S, Mansfield B, Immelman AR, Varki N, Miu P, Raal F, Tsimikas S. Lp(a), oxidized phospholipids and oxidation-specific epitopes are increased in subjects with keloid formation. Lipids Health Dis 2022; 21:113. [PMID: 36320028 PMCID: PMC9623907 DOI: 10.1186/s12944-022-01720-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Keloid formation following trauma or surgery is common among darkly pigmented individuals. Since lipoprotein(a) [Lp(a)] has been postulated to have a putative role in wound healing, and also mediates atherosclerotic cardiovascular disease, it was assessed whether Lp(a), its associated oxidized phospholipids and other oxidation-specific biomarkers were associated with keloid formation. METHODS This case-control study included darkly pigmented individuals of African ancestry, 100 with keloid scarring and 100 non-keloid controls. The lipid panel, hsCRP, Lp(a), oxidized phospholipids on apolipoprotein B-100 (OxPL-apoB), IgG and IgM apoB-immune complexes and IgG and IgM autoantibodies to a malondialdehyde mimotope (MDA-mimotope) were measured. Immunohistochemistry of keloid specimens was performed for both Lp(a) and OxPL staining. RESULTS Cases and controls were well matched for age, sex and lipid profile. Mean Lp(a) (57.8 vs. 44.2 mg/dL; P = 0.01, OxPL-apoB 17.4 vs. 15.7 nmol/L; P = 0.009) and IgG and IgM apoB-immune complexes and IgG and IgM MDA-mimotope levels were significantly higher in keloid cases. Keloid tissue stained strongly for OxPL. CONCLUSION Darkly pigmented individuals of African ancestry with keloids have higher plasma levels of Lp(a), OxPL-apoB and oxidation-specific epitopes. The commonality of excessive wound healing in keloids and chronic complications from coronary revascularization suggests avenues of investigation to define a common mechanism driven by Lp(a) and the innate response to oxidized lipids.
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Affiliation(s)
- Sundeep Ruder
- Carbohydrate & Lipid Metabolism Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Brett Mansfield
- Carbohydrate & Lipid Metabolism Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Andrew Ronald Immelman
- Carbohydrate & Lipid Metabolism Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Nissi Varki
- Department of Pathology, University of California, San Diego, USA
| | - Phuong Miu
- Sulpizio Cardiovascular Center, Division of Cardiovascular Medicine, University of California, 9500 Gilman Drive, 92093- 0682 San Diego, USA
| | - Frederick Raal
- Carbohydrate & Lipid Metabolism Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Sotirios Tsimikas
- Sulpizio Cardiovascular Center, Division of Cardiovascular Medicine, University of California, 9500 Gilman Drive, 92093- 0682 San Diego, USA
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14
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Clarke R, Hammami I, Sherliker P, Valdes-Marquez E, Watkins H, Hill M, Yang X, Tsimikas S, Hopewell JC. Oxidized phospholipids on apolipoprotein B-100 versus plasminogen and risk of coronary heart disease in the PROCARDIS study. Atherosclerosis 2022; 354:15-22. [PMID: 35803063 DOI: 10.1016/j.atherosclerosis.2022.06.1020] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 06/16/2022] [Accepted: 06/22/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND AIMS Oxidized phospholipids carried on the apolipoprotein B-100 (OxPL-apoB) component of Lp(a) are predictive of coronary heart disease (CHD), but the role of oxidized phospholipids carried on plasminogen (OxPL-PLG) is unknown. We examined the independent effects of OxPL-apoB and OxPL-PLG for risk of CHD before and after adjustment for Lp(a). METHODS Plasma levels of OxPL-apoB, OxPL-PLG, plasminogen and Lp(a) were measured in the PROCARDIS study of early-onset CHD (906 cases/858 controls). Multivariable logistic regression was used to estimate the odds ratios (OR) for each biomarker with CHD after adjustment for established risk factors. RESULTS Mean levels of OxPL-apoB were higher in cases than controls, but levels of OxPL-PLG and plasminogen were similar. For OxPL-apoB, individuals in the top vs bottom fifth had 2-fold higher age and sex-adjusted OR of CHD (OR = 2.61 [95%CI: 1.91, 3.55]), which were partially attenuated after adjustment for established risk factors. The findings for OxPL-apoB and CHD in PROCARDIS were comparable with those of a meta-analysis of all such studies. However, the associations of OxPL-apoB with CHD were fully attenuated by additional adjustment for Lp(a) (OR = 0.93 [0.54,1.60]). Neither OxPL-PLG nor plasminogen were associated with CHD. Overall, there were no differences in the predictive value for CHD of high vs normal levels (<20th or >80th percentile) of OxPL-apoB, OxPL-PLG, plasminogen or Lp(a) after stratifying for each other. CONCLUSIONS These results highlight the context-dependency of OxPL in plasma and suggest that their associated risk of CHD is chiefly mediated by their carriage on Lp(a).
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Affiliation(s)
- Robert Clarke
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.
| | - Imen Hammami
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Paul Sherliker
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Elsa Valdes-Marquez
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Hugh Watkins
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Michael Hill
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Xiaohong Yang
- Division of Cardiovascular Diseases, University of California, San Diego, USA
| | - Sotirios Tsimikas
- Division of Cardiovascular Diseases, University of California, San Diego, USA
| | - Jemma C Hopewell
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.
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15
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Ferreira HB, Barros C, Melo T, Paiva A, Domingues MR. Looking in Depth at Oxidized Cholesteryl Esters by LC-MS/MS: Reporting Specific Fragmentation Fingerprints and Isomer Discrimination. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:793-802. [PMID: 35438496 DOI: 10.1021/jasms.1c00370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Cholesteryl esters (CE) are prone to oxidation under increased oxidative stress conditions, but little is known about oxidized CE species (oxCE). To date, only a few oxCE have been identified, however, mainly based on the detection of molecular ions by mass spectrometry (MS) or target approaches for specific oxCE. The study of oxCE occurring from radical oxidation is still scarcely addressed. In this work, we made a comprehensive assessment of oxCE derivatives and their specific fragmentation patterns to identify detailed structural features and isomer differentiation using high-resolution C18 HPLC-MS- and MS/MS-based lipidomic approaches. The LC-MS/MS analysis allowed us to pinpoint oxCE structural isomers of long-chain and short-chain species, eluting at different retention times (tR). Data analysis revealed that oxCE can be modified either in the fatty acyl moiety or in the cholesterol ring. The location of the hydroxy/hydroperoxy group originates characteristic fragment ions, namely the unmodified cholestenyl cation (m/z 369) for the isomer with oxidation in the fatty acyl chain or ions at m/z 367 and m/z 385 (369 + 16) when oxygenation occurs in the cholesterol ring. Additionally, we identified CE 18:2 and 20:4 aldehydic and carboxylic short-chain products that showed a clear fragmentation pattern that confirmed the modification in the fatty acyl chain. Specific fragmentation fingerprinting allowed discrimination of the isobaric short-chain species, namely carboxylic short-chain products, from hydroxy aldehyde short-chain products, with a hydroxycholesterol moiety. This new information is important to identify different oxCE in biological samples and will contribute to unraveling their role in biological conditions and diseases such as cardiovascular disease.
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Affiliation(s)
- Helena Beatriz Ferreira
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro, Portugal
| | - Cristina Barros
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Tânia Melo
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro, Portugal
| | - Artur Paiva
- Unidade de Gestão Operacional em Citometria, Centro Hospitalar e Universitário de Coimbra (CHUC), 3004-561 Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-370 Coimbra, Portugal
- Instituto Politécnico de Coimbra, ESTESC - Coimbra Health School, Ciências Biomédicas Laboratoriais, 3046-854 Coimbra, Portugal
| | - M Rosário Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro, Portugal
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16
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Tsimikas S, Narula J. Lipoprotein(a) and CT Angiography. J Am Coll Cardiol 2022; 79:234-237. [DOI: 10.1016/j.jacc.2021.11.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 12/24/2022]
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17
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Solati Z, Surendran A, Edel A, Roznik M, Allen D, Ravandi A. Increase in Plasma Oxidized Phosphatidylcholines (OxPCs) in Patients Presenting With ST-Elevation Myocardial Infarction (STEMI). Front Med (Lausanne) 2021; 8:716944. [PMID: 34926484 PMCID: PMC8671696 DOI: 10.3389/fmed.2021.716944] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 11/02/2021] [Indexed: 12/28/2022] Open
Abstract
Objective: ST-segment Elevation Myocardial Infarction (STEMI) occurs as a result of acute occlusion of the coronary artery. Despite successful reperfusion using percutaneous coronary intervention (PCI), a large percentage of myocardial cells die after reperfusion which is recognized as ischemia/reperfusion injury (I/R). Oxidized phosphatidylcholines (OxPCs) are a group of oxidized lipids generated through non-enzymatic oxidation and have pro-inflammatory properties. This study aimed to examine the roles of OxPCs in a clinical setting of myocardial I/R. Methods: Blood samples were collected from STEMI patients at presentation prior to primary PCI (PPCI) (Isch) and at 4 time-points post-PPCI, including 2 h (R-2 h), 24 h (R-24 h), 48 h (R-48 h), and 30 days (R-30 d) post-PPCI. As controls, blood samples were collected from patients with non-obstructive coronary artery disease after diagnostic coronary angiography. Aspiration thrombectomy was also performed in selected STEMI patients. High-performance lipid chromatography-electrospray mass spectrometry (LC-MS/MS) was used for OxPCs analysis. Results: Twenty-two distinct OxPC species were identified and quantified in plasma samples in patients presenting with STEMI. These compounds were categorized as fragmented and non-fragmented species. Total levels of OxPCs did not significantly differ between Isch and control groups. However, total levels of fragmented OxPCs increased significantly in the ischemic period compared with controls (Isch: 4.79 ± 0.94, Control: 1.69 ± 0.19 ng/μl of plasma, P < 0.05). Concentrations of non-fragmented OxPCs had significant reductions during ischemia compared to the control group (Isch: 4.84 ± 0.30, Control: 6.6 ± 0.51 ng/μl, P < 0.05). Levels of total OxPCs in patients with STEMI were not significantly different during reperfusion periods. However, fragmented OxPCs levels were elevated at 48 h post-reperfusion and decreased at 30 days following MI, when compared to R-2 h and R-24 h time points (Isch: 4.79 ± 0.94, R-2 h: 5.33 ± 1.17, R-24 h: 5.20 ± 1.1, R-48 h: 4.18 ± 1.07, R-30 d: 1.87 ± 0.31 ng/μl, P < 0.05). Plasma levels of two fragmented OxPCs, namely, POVPC and PONPC were significantly correlated with peak creatine kinase (CK) levels (P < 0.05). As with plasma levels, the dominant OxPC species in coronary aspirated thrombus were fragmented OxPCs, which constituted 77% of total OxPC concentrations. Conclusion: Biologically active fragmented OxPC were elevated in patients presenting with STEMI when compared to controls. PONPC concentrations were subsequently increased after PPCI resulting in reperfusion. Moreover, levels of POVPC and PONPC were also associated with peak CK levels. Since these molecules are potent stimulators for cardiomyocyte cell death, therapeutics attenuating their activities can result in a novel therapeutic pathway for myocardial salvage for patients undergoing reperfusion therapy.
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Affiliation(s)
- Zahra Solati
- Cardiovascular Lipidomics Laboratory, St. Boniface Hospital, Albrechtsen Research Centre, Winnipeg, MB, Canada.,Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Arun Surendran
- Cardiovascular Lipidomics Laboratory, St. Boniface Hospital, Albrechtsen Research Centre, Winnipeg, MB, Canada.,Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Andrea Edel
- Cardiovascular Lipidomics Laboratory, St. Boniface Hospital, Albrechtsen Research Centre, Winnipeg, MB, Canada.,Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Marynia Roznik
- Department of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - David Allen
- Section of Cardiology, Department of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Amir Ravandi
- Cardiovascular Lipidomics Laboratory, St. Boniface Hospital, Albrechtsen Research Centre, Winnipeg, MB, Canada.,Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,Department of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,Section of Cardiology, Department of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
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18
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Wang X, Li H, Zou X, Yan X, Cong P, Li H, Wang H, Xue C, Xu J. Deep mining and quantification of oxidized cholesteryl esters discovers potential biomarkers involved in breast cancer by liquid chromatography-mass spectrometry. J Chromatogr A 2021; 1663:462764. [PMID: 34954533 DOI: 10.1016/j.chroma.2021.462764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 10/19/2022]
Abstract
Oxidized cholesteryl ester (OxCE) is produced by the oxidation of cholesteryl ester (CE) in the cores of lipoproteins. OxCE production and oxidative stress have been largely associated with breast cancer. Herein, we developed a novel reverse-phase liquid chromatography coupling quadrupole time-of-flight mass spectrometry (RPLC‒Q-TOF‒MS) method based on the iterative acquisition mode and used the MS/MS mode for deep mining and simultaneous quantification of cholesterol (Chol), CEs and OxCEs in human serum. A mathematical model was used to globally profile 57 molecular species of both CEs and OxCEs in the serum of both healthy volunteers and patients with breast cancer, and the qualitative results were verified based on the retention regularity. An abnormal elevation of OxCEs was found in serum samples of breast cancer patients, where OxCEs were produced by the oxidation of the fatty acyl chain of CE (20:4), such as CE (20:1)+3O, CE (20:2)+2O and CE (20:3)+O, which could be regarded as biomarkers. This comprehensive method for the global profiling of Chol, OxCEs and CEs sheds light on the role OxCEs and CEs play in breast cancer and has enabled the discovery of breast cancer biomarkers.
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Affiliation(s)
- Xincen Wang
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong 266003, China
| | - He Li
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong 266003, China
| | - Xiao Zou
- Qingdao Central Hospital, No. 127, Siliu Nan Road, Qingdao, Shandong 266500, China
| | - Xiong Yan
- Qingdao Central Hospital, No. 127, Siliu Nan Road, Qingdao, Shandong 266500, China
| | - Peixu Cong
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong 266003, China
| | - Hongyan Li
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong 266003, China; College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Hui Wang
- Agilent Technologies Co. Ltd., No. 9 Hongkong Zhong Road, Qingdao Shandong 266071, China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong 266003, China; Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1, Wenhai Road, Qingdao, Shandong 266237, China.
| | - Jie Xu
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong 266003, China.
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19
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Gladine C, Fedorova M. The clinical translation of eicosanoids and other oxylipins, although challenging, should be actively pursued. J Mass Spectrom Adv Clin Lab 2021; 21:27-30. [PMID: 34820674 PMCID: PMC8600996 DOI: 10.1016/j.jmsacl.2021.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/19/2021] [Accepted: 08/19/2021] [Indexed: 01/02/2023] Open
Key Words
- CE, cholesteryl ester
- CVD, cardiovascular disease
- LDL, low density lipoprotein
- NFκB, nuclear factor kappa B
- PC, phosphatidylcholine
- PL, phospholipid
- PPAR, peroxisome proliferator-activated receptor
- PUFA, polyunsaturated fatty acid
- TG, triglyceride
- oxCE, oxidized CE
- oxLDL, oxidized LDL
- oxTG, oxidized TG
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Affiliation(s)
- Cécile Gladine
- Université Clermont Auvergne, INRAE, UNH, Clermont-Ferrand, France
| | - Maria Fedorova
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, University of Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany.,Center for Biotechnology and Biomedicine, University of Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany
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20
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Comparative lipid profiling of murine and human atherosclerotic plaques using high-resolution MALDI MSI. Pflugers Arch 2021; 474:231-242. [PMID: 34797426 PMCID: PMC8766400 DOI: 10.1007/s00424-021-02643-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 10/19/2021] [Accepted: 11/06/2021] [Indexed: 11/20/2022]
Abstract
The distribution of atherosclerotic lesions in the aorta and its branches of ApoE knockout (ApoE−/−) mice is like that of patients with atherosclerosis. By using high-resolution MALDI mass spectrometry imaging (MSI), we aimed at characterizing universally applicable physiological biomarkers by comparing the murine lipid marker profile with that of human atherosclerotic arteries. Therefore, the aorta or carotid artery of male ApoE−/− mice at different ages, human arteries with documented atherosclerotic changes originated from amputated limbs, and corresponding controls were analysed. Obtained data were subjected to multivariate statistical analysis to identify potential biomarkers. Thirty-one m/z values corresponding to individual lipid species of cholesterol esters, lysophosphatidylcholines, lysophosphatidylethanolamines, and cholesterol derivatives were found to be specific in aortic atherosclerotic plaques of old ApoE−/− mice. The lipid composition at related vessel positions of young ApoE−/− mice was more comparable with wild-type mice. Twenty-six m/z values of the murine lipid markers were found in human atherosclerotic peripheral arteries but also control vessels and showed a more patient-dependent diverse distribution. Extensive data analysis without marker preselection based on mouse data revealed lysophosphatidylcholine and glucosylated cholesterol species, the latter not being detected in the murine atherosclerotic tissue, as specific potential novel human atherosclerotic vessel markers. Despite the heterogeneous lipid profile of atherosclerotic peripheral arteries derived from human patients, we identified lipids specifically colocalized to atherosclerotic human tissue and plaques in ApoE−/− mice. These data highlight species-dependent differences in lipid profiles between peripheral artery disease and aortic atherosclerosis.
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21
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Tsimikas S, Reeves RR, Patel MP. Always Present, But Now Rediscovered: Lp(a) as a Predictor of Long-Term Outcomes in PCI. JACC Cardiovasc Interv 2021; 14:2069-2072. [PMID: 34556281 DOI: 10.1016/j.jcin.2021.08.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 08/10/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Sotirios Tsimikas
- Division of Cardiovascular Medicine, Sulpizio Cardiovascular Center, University of California-San Diego, La Jolla, California, USA.
| | - Ryan R Reeves
- Division of Cardiovascular Medicine, Sulpizio Cardiovascular Center, University of California-San Diego, La Jolla, California, USA
| | - Mitul P Patel
- Division of Cardiovascular Medicine, Sulpizio Cardiovascular Center, University of California-San Diego, La Jolla, California, USA
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22
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Nakagawa K, Tanaka M, Hahm TH, Nguyen HN, Matsui T, Chen YX, Nakashima Y. Accumulation of Plasma-Derived Lipids in the Lipid Core and Necrotic Core of Human Atheroma: Imaging Mass Spectrometry and Histopathological Analyses. Arterioscler Thromb Vasc Biol 2021; 41:e498-e511. [PMID: 34470476 DOI: 10.1161/atvbaha.121.316154] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Kazunori Nakagawa
- Pathophysiological and Experimental Pathology, Graduate School of Medical Sciences (K.N., Y.-X.C., Y.N.), Kyushu University, Fukuoka, Japan
| | - Mitsuru Tanaka
- Laboratory of Food Analysis, Department of Bioscience and Biotechnology, Faculty of Agriculture (M.T., T.-H.H., T.M.), Kyushu University, Fukuoka, Japan
| | - Tae-Hun Hahm
- Laboratory of Food Analysis, Department of Bioscience and Biotechnology, Faculty of Agriculture (M.T., T.-H.H., T.M.), Kyushu University, Fukuoka, Japan
| | - Huu-Nghi Nguyen
- Department of Science and International Collaboration, Institute for Research and Development of Organic Products, Hanoi, Vietnam (H.-N.N.)
| | - Toshiro Matsui
- Laboratory of Food Analysis, Department of Bioscience and Biotechnology, Faculty of Agriculture (M.T., T.-H.H., T.M.), Kyushu University, Fukuoka, Japan
| | - Yong-Xiang Chen
- Pathophysiological and Experimental Pathology, Graduate School of Medical Sciences (K.N., Y.-X.C., Y.N.), Kyushu University, Fukuoka, Japan.,Department of Cardiac Sciences, Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Alberta, Canada (Y.-X.C.)
| | - Yutaka Nakashima
- Pathophysiological and Experimental Pathology, Graduate School of Medical Sciences (K.N., Y.-X.C., Y.N.), Kyushu University, Fukuoka, Japan
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23
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Nicholls SJ, Bubb KJ. The Riskier Lipid: What Is on the HORIZON for Lipoprotein (a) and Should There Be Lp(a) Screening for All? Curr Cardiol Rep 2021; 23:97. [PMID: 34196823 DOI: 10.1007/s11886-021-01528-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/14/2021] [Indexed: 12/24/2022]
Abstract
PURPOSE OF REVIEW Despite widespread targeting of cardiovascular risk factors, many patients continue to experience clinical events. This residual risk has stimulated efforts to develop novel therapeutic approaches to target additional factors underscoring cardiovascular disease. This review aimed to summarize existing evidence supporting targeting of Lp(a) as a novel cardioprotective strategy. RECENT FINDINGS Increasing evidence has implicated lipoprotein (a) [Lp(a)] in the pathogenesis of both atherosclerotic and calcific aortic valve disease. Therapeutic advances have produced novel agents that selectively lower Lp(a) levels, which have now progressed to evaluate their impact on cardiovascular events in large clinical outcome trials. Evidence continues to accumulate suggesting that targeting Lp(a) may be effective in reducing cardiovascular risk. With advances in Lp(a) targeted therapeutics, clinical trials now have the opportunity to determine whether this strategy will be effective for high-risk patients.
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Affiliation(s)
- Stephen J Nicholls
- Monash Cardiovascular Research Centre, Victorian Heart Institute, Monash University, 246 Clayton Road, Clayton, VIC, 3168, Australia.
| | - Kristen J Bubb
- Biomedical Discovery Institute, Monash University, Melbourne, Australia
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24
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Li Y, Zhang YX, Ning DS, Chen J, Li SX, Mo ZW, Peng YM, He SH, Chen YT, Zheng CJ, Gao JJ, Yuan HX, Ou JS, Ou ZJ. Simvastatin inhibits POVPC-mediated induction of endothelial-to-mesenchymal cell transition. J Lipid Res 2021; 62:100066. [PMID: 33711324 PMCID: PMC8063863 DOI: 10.1016/j.jlr.2021.100066] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 02/22/2021] [Accepted: 03/05/2021] [Indexed: 11/16/2022] Open
Abstract
Endothelial-to-mesenchymal transition (EndMT), the process by which an endothelial cell (EC) undergoes a series of molecular events that result in a mesenchymal cell phenotype, plays an important role in atherosclerosis. 1-Palmitoyl-2-(5-oxovaleroyl)-sn-glycero-3-phosphocholine (POVPC), derived from the oxidation of 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphatidylcholine, is a proinflammatory lipid found in atherosclerotic lesions. Whether POVPC promotes EndMT and how simvastatin influences POVPC-mediated EndMT remains unclear. Here, we treated human umbilical vein ECs with POVPC, simvastatin, or both, and determined their effect on EC viability, morphology, tube formation, proliferation, and generation of NO and superoxide anion (O2•-). Expression of specific endothelial and mesenchymal markers was detected by immunofluorescence and immunoblotting. POVPC did not affect EC viability but altered cellular morphology from cobblestone-like ECs to a spindle-like mesenchymal cell morphology. POVPC increased O2- generation and expression of alpha-smooth muscle actin, vimentin, Snail-1, Twist-1, transforming growth factor-beta (TGF-β), TGF-β receptor II, p-Smad2/3, and Smad2/3. POVPC also decreased NO production and expression of CD31 and endothelial NO synthase. Simvastatin inhibited POVPC-mediated effects on cellular morphology, production of O2•- and NO, and expression of specific endothelial and mesenchymal markers. These data demonstrate that POVPC induces EndMT by increasing oxidative stress, which stimulates TGF-β/Smad signaling, leading to Snail-1 and Twist-1 activation. Simvastatin inhibited POVPC-induced EndMT by decreasing oxidative stress, suppressing TGF-β/Smad signaling, and inactivating Snail-1 and Twist-1. Our findings reveal a novel mechanism of atherosclerosis that can be inhibited by simvastatin.
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Affiliation(s)
- Yan Li
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Yi-Xin Zhang
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Da-Sheng Ning
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Jing Chen
- National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; Division of Hypertension and Vascular Diseases, Department of Cardiology, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Shang-Xuan Li
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Zhi-Wei Mo
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Yue-Ming Peng
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Shi-Hui He
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Ya-Ting Chen
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Chun-Juan Zheng
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Jian-Jun Gao
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Hao-Xiang Yuan
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China
| | - Jing-Song Ou
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; Guangdong Provincial Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China.
| | - Zhi-Jun Ou
- National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; NHC key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, People's Republic of China; Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, People's Republic of China; Division of Hypertension and Vascular Diseases, Department of Cardiology, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.
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25
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Izzo C, Vitillo P, Di Pietro P, Visco V, Strianese A, Virtuoso N, Ciccarelli M, Galasso G, Carrizzo A, Vecchione C. The Role of Oxidative Stress in Cardiovascular Aging and Cardiovascular Diseases. Life (Basel) 2021; 11:60. [PMID: 33467601 PMCID: PMC7829951 DOI: 10.3390/life11010060] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/12/2022] Open
Abstract
Aging can be seen as process characterized by accumulation of oxidative stress induced damage. Oxidative stress derives from different endogenous and exogenous processes, all of which ultimately lead to progressive loss in tissue and organ structure and functions. The oxidative stress theory of aging expresses itself in age-related diseases. Aging is in fact a primary risk factor for many diseases and in particular for cardiovascular diseases and its derived morbidity and mortality. Here we highlight the role of oxidative stress in age-related cardiovascular aging and diseases. We take into consideration the molecular mechanisms, the structural and functional alterations, and the diseases accompanied to the cardiovascular aging process.
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Affiliation(s)
- Carmine Izzo
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
| | - Paolo Vitillo
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
| | - Paola Di Pietro
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
| | - Valeria Visco
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
| | - Andrea Strianese
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
| | - Nicola Virtuoso
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
| | - Michele Ciccarelli
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
| | - Gennaro Galasso
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
| | - Albino Carrizzo
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
- Department of Angio-Cardio-Neurology, Vascular Physiopathology Unit, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Carmine Vecchione
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081 Salerno, Italy; (C.I.); (P.V.); (P.D.P.); (V.V.); (A.S.); (N.V.); (M.C.); (G.G.); (A.C.)
- Department of Angio-Cardio-Neurology, Vascular Physiopathology Unit, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
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26
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Liu J, Zhao M, Zhu Y, Zheng L, Yin Y. Plasma Metabolomic and Lipidomic Profiling of a Genetically Modified Mouse Model of Scavenger Receptor Class B Type I. Proteomics 2020; 20:e2000050. [PMID: 33090674 DOI: 10.1002/pmic.202000050] [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: 03/07/2020] [Revised: 08/31/2020] [Indexed: 11/06/2022]
Abstract
Atherosclerosis is a chronic inflammatory disease of the arterial wall and is becoming the principal cause of death globally. The reverse cholesterol transport (RCT) mediated by scavenger receptor class B type I (SR-BI) is a major protection mechanism against atherosclerosis. To investigate the metabolome changes and to find potential biomarkers involved in RCT, nontargeted metabolomics and nontargeted lipidomics are applied to SR-BI knockout mice that are fed a high fat and high cholesterol diet. SR-BI knockout mice and controls are told apart using multidimensional statistical analysis, and potential biomarkers are found and identified. The pathophysiological meaning of the biomarkers and the perturbed metabolic pathways are also addressed, which could provide new evidence for atherosclerosis studies.
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Affiliation(s)
- Jia Liu
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Mingming Zhao
- The Institute of Cardiovascular Sciences, School of Basic Medical Sciences, and Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Peking University Health Science Center, Beijing, 100191, China
| | - Yizhang Zhu
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Lemin Zheng
- The Institute of Cardiovascular Sciences, School of Basic Medical Sciences, and Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Peking University Health Science Center, Beijing, 100191, China
| | - Yuxin Yin
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191, China
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27
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Moriarty PM, Gorby LK, Stroes ES, Kastelein JP, Davidson M, Tsimikas S. Lipoprotein(a) and Its Potential Association with Thrombosis and Inflammation in COVID-19: a Testable Hypothesis. Curr Atheroscler Rep 2020; 22:48. [PMID: 32710255 PMCID: PMC7381416 DOI: 10.1007/s11883-020-00867-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PURPOSE OF REVIEW The COVID-19 pandemic has infected over > 11 million as of today people worldwide and is associated with significant cardiovascular manifestations, particularly in subjects with preexisting comorbidities and cardiovascular risk factors. Recently, a predisposition for arterial and venous thromboses has been reported in COVID-19 infection. We hypothesize that besides conventional risk factors, subjects with elevated lipoprotein(a) (Lp(a)) may have a particularly high risk of developing cardiovascular complications. RECENT FINDINGS The Lp(a) molecule has the propensity for inhibiting endogenous fibrinolysis through its apolipoprotein(a) component and for enhancing proinflammatory effects such as through its content of oxidized phospholipids. The LPA gene contains an interleukin-6 (IL-6) response element that may induce an acute phase-type increase in Lp(a) levels following a cytokine storm from COVID-19. Thus, subjects with either baseline elevated Lp(a) or those who have an increase following COVID-19 infection, or both, may be at very high risk of developing thromboses. Elevated Lp(a) may also lead to acute destabilization of preexisting but quiescent atherosclerotic plaques, which might induce acute myocardial infarction and stroke. Ongoing studies with IL-6 antagonists may be informative in understanding this relationship, and registries are being initiated to measure Lp(a) in subjects infected with COVID-19. If indeed an association is suggestive of being causal, consideration can be given to systematic testing of Lp(a) and prophylactic systemic anticoagulation in infected inpatients. Therapeutic lipid apheresis and pharmacotherapy for the reduction of Lp(a) levels may minimize thrombogenic potential and proinflammatory effects. We propose studies to test the hypothesis that Lp(a) may contribute to cardiovascular complications of COVID-19.
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Affiliation(s)
- Patrick M Moriarty
- Division of Clinical Pharmacology, University of Kansas Medical Center, Kansas City, KS, USA.
| | - Lauryn K Gorby
- Division of Clinical Pharmacology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Erik S Stroes
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - John P Kastelein
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - Michael Davidson
- Lipid Clinic, The University of Chicago Pritzker School of Medicine, Chicago, IL, USA
| | - Sotirios Tsimikas
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, CA, USA.
- Vascular Medicine Program, Sulpizio Cardiovascular Center, University of California San Diego, 9500 Gilman Drive, BSB 1080, La Jolla, CA, 92093-0682, USA.
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28
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Oehler B, Brack A, Blum R, Rittner HL. Pain Control by Targeting Oxidized Phospholipids: Functions, Mechanisms, Perspectives. Front Endocrinol (Lausanne) 2020; 11:613868. [PMID: 33569042 PMCID: PMC7868524 DOI: 10.3389/fendo.2020.613868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 11/19/2020] [Indexed: 01/09/2023] Open
Abstract
Within the lipidome oxidized phospholipids (OxPL) form a class of chemically highly reactive metabolites. OxPL are acutely produced in inflamed tissue and act as endogenous, proalgesic (pain-inducing) metabolites. They excite sensory, nociceptive neurons by activating transient receptor potential ion channels, specifically TRPA1 and TRPV1. Under inflammatory conditions, OxPL-mediated receptor potentials even potentiate the action potential firing rate of nociceptors. Targeting OxPL with D-4F, an apolipoprotein A-I mimetic peptide or antibodies like E06, specifically binding oxidized headgroups of phospholipids, can be used to control acute, inflammatory pain syndromes, at least in rodents. With a focus on proalgesic specificities of OxPL, this article discusses, how targeting defined substances of the epilipidome can contribute to mechanism-based therapies against primary and secondary chronic inflammatory or possibly also neuropathic pain.
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Affiliation(s)
- Beatrice Oehler
- Wolfson Center of Age-Related Diseases, IoPPN, Health and Life Science, King’s College London, London, United Kingdom
- Department of Anesthesiology, University Hospital of Heidelberg, Heidelberg, Germany
- Department of Anesthesiology, University Hospital of Würzburg, Würzburg, Germany
| | - Alexander Brack
- Department of Anesthesiology, University Hospital of Würzburg, Würzburg, Germany
| | - Robert Blum
- Institute of Clinical Neurobiology, Department of Neurology, University Hospital of Würzburg, Würzburg, Germany
| | - Heike L. Rittner
- Department of Anesthesiology, University Hospital of Würzburg, Würzburg, Germany
- *Correspondence: Heike L. Rittner,
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29
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Gonen A, Miller YI. From Inert Storage to Biological Activity-In Search of Identity for Oxidized Cholesteryl Esters. Front Endocrinol (Lausanne) 2020; 11:602252. [PMID: 33329402 PMCID: PMC7715012 DOI: 10.3389/fendo.2020.602252] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/23/2020] [Indexed: 12/31/2022] Open
Abstract
Esterification of cholesterol is a universal mechanism to store and transport large quantities of cholesterol between organs and tissues and to avoid toxicity of the excess of cellular cholesterol. Intended for transport and storage and thus to be inert, cholesteryl esters (CEs) reside in hydrophobic cores of circulating lipoproteins and intracellular lipid droplets. However, the inert identity of CEs is dramatically changed if cholesterol is esterified to a polyunsaturated fatty acid and subjected to oxidative modification. Post-synthetic, or epilipidomic, oxidative modifications of CEs are mediated by specialized enzymes, chief among them are lipoxygenases, and by free radical oxidation. The complex repertoire of oxidized CE (OxCE) products exhibit various, context-dependent biological activities, surveyed in this review. Oxidized fatty acyl chains in OxCE can be hydrolyzed and re-esterified, thus seeding oxidized moieties into phospholipids (PLs), with OxPLs having different from OxCEs biological activities. Technological advances in mass spectrometry and the development of new anti-OxCE antibodies make it possible to validate the presence and quantify the levels of OxCEs in human atherosclerotic lesions and plasma. The article discusses the prospects of measuring OxCE levels in plasma as a novel biomarker assay to evaluate risk of developing cardiovascular disease and efficacy of treatment.
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Li L, Zhong S, Shen X, Li Q, Xu W, Tao Y, Yin H. Recent development on liquid chromatography-mass spectrometry analysis of oxidized lipids. Free Radic Biol Med 2019; 144:16-34. [PMID: 31202785 DOI: 10.1016/j.freeradbiomed.2019.06.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/21/2019] [Accepted: 06/05/2019] [Indexed: 12/13/2022]
Abstract
Polyunsaturated fatty acids (PUFAs) in the cellular membrane can be oxidized by various enzymes or reactive oxygen species (ROS) to form many oxidized lipids. These metabolites are highly bioactive, participating in a variety of physiological and pathophysiological processes. Mass spectrometry (MS), coupled with Liquid Chromatography, has been increasingly recognized as an indispensable tool for the analysis of oxidized lipids due to its excellent sensitivity and selectivity. We will give an update on the understanding of the molecular mechanisms related to generation of various oxidized lipids and recent progress on the development of LC-MS in the detection of these bioactive lipids derived from fatty acids, cholesterol esters, and phospholipids. The purpose of this review is to provide an overview of the formation mechanisms and technological advances in LC-MS for the study of oxidized lipids in human diseases, and to shed new light on the potential of using oxidized lipids as biomarkers and mechanistic clues of pathogenesis related to lipid metabolism. The key technical problems associated with analysis of oxidized lipids and challenges in the field will also discussed.
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Affiliation(s)
- Luxiao Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, 200031, China; University of Chinese Academy of Sciences, CAS, Beijing, 100049, China
| | - Shanshan Zhong
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, 200031, China; University of Chinese Academy of Sciences, CAS, Beijing, 100049, China
| | - Xia Shen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, 200031, China; University of Chinese Academy of Sciences, CAS, Beijing, 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai, 200031, China
| | - Qiujing Li
- Department of Pharmacy, Zhangzhou Health Vocational College, Zhangzhou, 363000, China
| | - Wenxin Xu
- Department of Medical Technology, Zhangzhou Health Vocational College, Zhangzhou, 363000, China
| | - Yongzhen Tao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, 200031, China
| | - Huiyong Yin
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, 200031, China; University of Chinese Academy of Sciences, CAS, Beijing, 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai, 200031, China; Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100000, China.
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Zhong S, Li L, Shen X, Li Q, Xu W, Wang X, Tao Y, Yin H. An update on lipid oxidation and inflammation in cardiovascular diseases. Free Radic Biol Med 2019; 144:266-278. [PMID: 30946962 DOI: 10.1016/j.freeradbiomed.2019.03.036] [Citation(s) in RCA: 208] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 03/26/2019] [Accepted: 03/29/2019] [Indexed: 12/28/2022]
Abstract
Cardiovascular diseases (CVD), including ischemic heart diseases and cerebrovascular diseases, are the leading causes of morbidity and mortality worldwide. Atherosclerosis is the major underlying factor for most CVD. It is well-established that oxidative stress and inflammation are two major mechanisms leading to atherosclerosis. Under oxidative stress, polyunsaturated fatty acids (PUFA)-containing phospholipids and cholesterol esters in cellular membrane and lipoproteins can be readily oxidized through a free radical-induced lipid peroxidation (LPO) process to form a complex mixture of oxidation products. Overwhelming evidence demonstrates that these oxidized lipids are actively involved in the inflammatory responses in atherosclerosis by interacting with immune cells (such as macrophages) and endothelial cells. In addition to lipid lowering in the prevention and treatment of atherosclerotic CVD, targeting chronic inflammation has been entering the medical realm. Clinical trials are under way to lower the lipoprotein (a) (Lp(a)) and its associated oxidized phospholipids, which will provide clinical evidence that targeting inflammation caused by oxidized lipids is a viable approach for CVD. In this review, we aim to give an update on our understanding of the free radical oxidation of LPO, analytical technique to analyze the oxidation products, especially the oxidized phospholipids and cholesterol esters in low density lipoproteins (LDL), and focusing on the experimental and clinical evidence on the role of lipid oxidation in the inflammatory responses associated with CVD, including myocardial infarction and calcific aortic valve stenosis. The challenges and future directions in understanding the role of LPO in CVD will also be discussed.
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Affiliation(s)
- Shanshan Zhong
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Luxiao Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Xia Shen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China; School of Life Science and Technology, ShanghaiTech University, Shanghai, 200031, China
| | - Qiujing Li
- Department of Pharmacy, Zhangzhou Health Vocational College, Zhangzhou, 363000, China
| | - Wenxin Xu
- Department of Medical Technology, Zhangzhou Health Vocational College, Zhangzhou, 363000, China
| | - Xiaoping Wang
- Department of Pharmacy, Zhangzhou Health Vocational College, Zhangzhou, 363000, China
| | - Yongzhen Tao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Huiyong Yin
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China; School of Life Science and Technology, ShanghaiTech University, Shanghai, 200031, China; Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100000, China.
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32
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Machiraju P, Wang X, Sabouny R, Huang J, Zhao T, Iqbal F, King M, Prasher D, Lodha A, Jimenez-Tellez N, Ravandi A, Argiropoulos B, Sinasac D, Khan A, Shutt TE, Greenway SC. SS-31 Peptide Reverses the Mitochondrial Fragmentation Present in Fibroblasts From Patients With DCMA, a Mitochondrial Cardiomyopathy. Front Cardiovasc Med 2019; 6:167. [PMID: 31803760 PMCID: PMC6873783 DOI: 10.3389/fcvm.2019.00167] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 10/31/2019] [Indexed: 12/04/2022] Open
Abstract
We used patient dermal fibroblasts to characterize the mitochondrial abnormalities associated with the dilated cardiomyopathy with ataxia syndrome (DCMA) and to study the effect of the mitochondrially-targeted peptide SS-31 as a potential novel therapeutic. DCMA is a rare and understudied autosomal recessive disorder thought to be related to Barth syndrome but caused by mutations in DNAJC19, a protein of unknown function localized to the mitochondria. The clinical disease is characterized by 3-methylglutaconic aciduria, dilated cardiomyopathy, abnormal neurological development, and other heterogeneous features. Until recently no effective therapies had been identified and affected patients frequently died in early childhood from intractable heart failure. Skin fibroblasts from four pediatric patients with DCMA were used to establish parameters of mitochondrial dysfunction. Mitochondrial structure, reactive oxygen species (ROS) production, cardiolipin composition, and gene expression were evaluated. Immunocytochemistry with semi-automated quantification of mitochondrial structural metrics and transmission electron microscopy demonstrated mitochondria to be highly fragmented in DCMA fibroblasts compared to healthy control cells. Live-cell imaging demonstrated significantly increased ROS production in patient cells. These abnormalities were reversed by treating DCMA fibroblasts with SS-31, a synthetic peptide that localizes to the inner mitochondrial membrane. Levels of cardiolipin were not significantly different between control and DCMA cells and were unaffected by SS-31 treatment. Our results demonstrate the abnormal mitochondria in fibroblasts from patients with DCMA and suggest that SS-31 may represent a potential therapy for this devastating disease.
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Affiliation(s)
- Pranav Machiraju
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Xuemei Wang
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Rasha Sabouny
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Joshua Huang
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Tian Zhao
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Fatima Iqbal
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Melissa King
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Dimple Prasher
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Arijit Lodha
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Nerea Jimenez-Tellez
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Amir Ravandi
- Department of Physiology and Pathophysiology, St. Boniface Hospital Research Centre, Institute of Cardiovascular Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Bob Argiropoulos
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - David Sinasac
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Aneal Khan
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Timothy E Shutt
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Steven C Greenway
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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33
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Rohani L, Machiraju P, Sabouny R, Meng G, Liu S, Zhao T, Iqbal F, Wang X, Ravandi A, Wu JC, Khan A, Shutt T, Rancourt D, Greenway SC. Reversible Mitochondrial Fragmentation in iPSC-Derived Cardiomyocytes From Children With DCMA, a Mitochondrial Cardiomyopathy. Can J Cardiol 2019; 36:554-563. [PMID: 32046906 DOI: 10.1016/j.cjca.2019.09.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 09/17/2019] [Accepted: 09/20/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Dilated cardiomyopathy with ataxia syndrome (DCMA) is an understudied autosomal recessive disease caused by loss-of-function mutations in the poorly characterized gene DNAJC19. Clinically, DCMA is commonly associated with heart failure and early death in affected children through an unknown mechanism. DCMA has been linked to Barth syndrome, a rare but well-studied disorder caused by deficient maturation of cardiolipin (CL), a key mitochondrial membrane phospholipid. METHODS Peripheral blood mononuclear cells from 2 children with DCMA and severe cardiac dysfunction were reprogrammed into induced pluripotent stem cells (iPSCs). Patient and control iPSCs were differentiated into beating cardiomyocytes (iPSC-CMs) using a metabolic selection strategy. Mitochondrial structure and CL content before and after incubation with the mitochondrially targeted peptide SS-31 were quantified. RESULTS Patient iPSCs carry the causative DNAJC19 mutation (rs137854888) found in the Hutterite population, and the iPSC-CMs demonstrated highly fragmented and abnormally shaped mitochondria associated with an imbalanced isoform ratio of the mitochondrial protein OPA1, an important regulator of mitochondrial fusion. These abnormalities were reversible by incubation with SS-31 for 24 hours. Differentiation of iPSCs into iPSC-CMs increased the number of CL species observed, but consistent, significant differences in CL content were not seen between patients and control. CONCLUSIONS We describe a unique and novel cellular model that provides insight into the mitochondrial abnormalities present in DCMA and identifies SS-31 as a potential therapeutic for this devastating disease.
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Affiliation(s)
- Leili Rohani
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Pranav Machiraju
- Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Rasha Sabouny
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Guoliang Meng
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Shiying Liu
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Tian Zhao
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Fatima Iqbal
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Xuemei Wang
- Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Amir Ravandi
- Department of Physiology and Pathophysiology and Institute of Cardiovascular Sciences, St Boniface Hospital Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Joseph C Wu
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Aneal Khan
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Timothy Shutt
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Derrick Rancourt
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - Steven C Greenway
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute of Alberta, University of Calgary, Calgary, Alberta, Canada.
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Goldberg IJ, Reue K, Abumrad NA, Bickel PE, Cohen S, Fisher EA, Galis ZS, Granneman JG, Lewandowski ED, Murphy R, Olive M, Schaffer JE, Schwartz-Longacre L, Shulman GI, Walther TC, Chen J. Deciphering the Role of Lipid Droplets in Cardiovascular Disease: A Report From the 2017 National Heart, Lung, and Blood Institute Workshop. Circulation 2019; 138:305-315. [PMID: 30012703 DOI: 10.1161/circulationaha.118.033704] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lipid droplets (LDs) are distinct and dynamic organelles that affect the health of cells and organs. Much progress has been made in understanding how these structures are formed, how they interact with other cellular organelles, how they are used for storage of triacylglycerol in adipose tissue, and how they regulate lipolysis. Our understanding of the biology of LDs in the heart and vascular tissue is relatively primitive in comparison with LDs in adipose tissue and liver. The National Heart, Lung, and Blood Institute convened a working group to discuss how LDs affect cardiovascular diseases. The goal of the working group was to examine the current state of knowledge on the cell biology of LDs, including current methods to study them in cells and organs and reflect on how LDs influence the development and progression of cardiovascular diseases. This review summarizes the working group discussion and recommendations on research areas ripe for future investigation that will likely improve our understanding of atherosclerosis and heart function.
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Affiliation(s)
| | - Karen Reue
- University of California, Los Angeles (K.R.)
| | | | - Perry E Bickel
- University of Texas Southwestern Medical Center, Dallas (P.E.B.)
| | - Sarah Cohen
- University of North Carolina at Chapel Hill (S.C.)
| | | | - Zorina S Galis
- National Institutes of Health/National, Heart, Lung, and Blood Institute, Bethesda, MD (Z.S.G., M.O., L.S.-L., J.C.)
| | | | | | | | - Michelle Olive
- National Institutes of Health/National, Heart, Lung, and Blood Institute, Bethesda, MD (Z.S.G., M.O., L.S.-L., J.C.)
| | | | - Lisa Schwartz-Longacre
- National Institutes of Health/National, Heart, Lung, and Blood Institute, Bethesda, MD (Z.S.G., M.O., L.S.-L., J.C.)
| | - Gerald I Shulman
- Yale University, Howard Hughes Medical Institute, New Haven, CT (G.I.S.)
| | - Tobias C Walther
- Harvard University, Howard Hughes Medical Institute, Boston, MA (T.C.W.)
| | - Jue Chen
- National Institutes of Health/National, Heart, Lung, and Blood Institute, Bethesda, MD (Z.S.G., M.O., L.S.-L., J.C.).
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35
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Investigation of lipidomic perturbations in oxidatively stressed subcellular organelles and exosomes by asymmetrical flow field–flow fractionation and nanoflow ultrahigh performance liquid chromatography–tandem mass spectrometry. Anal Chim Acta 2019; 1073:79-89. [DOI: 10.1016/j.aca.2019.04.069] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/23/2019] [Accepted: 04/27/2019] [Indexed: 12/22/2022]
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36
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Godzien J, Kalaska B, Adamska-Patruno E, Siroka J, Ciborowski M, Kretowski A, Barbas C. Oxidized glycerophosphatidylcholines in diabetes through non-targeted metabolomics: Their annotation and biological meaning. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1120:62-70. [DOI: 10.1016/j.jchromb.2019.04.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/26/2019] [Accepted: 04/28/2019] [Indexed: 02/07/2023]
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37
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Solati Z, Ravandi A. Lipidomics of Bioactive Lipids in Acute Coronary Syndromes. Int J Mol Sci 2019; 20:ijms20051051. [PMID: 30823404 PMCID: PMC6429306 DOI: 10.3390/ijms20051051] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/22/2019] [Accepted: 02/24/2019] [Indexed: 02/07/2023] Open
Abstract
Acute coronary syndrome (ACS) refers to ischemic conditions that occur as a result of atherosclerotic plaque rupture and thrombus formation. It has been shown that lipid peroxidation may cause plaque instability by inducing inflammation, apoptosis, and neovascularization. There is some evidence showing that these oxidized lipids may have a prognostic value in ACS. For instance, higher levels of oxidized phospholipids on apo B-100 lipoproteins (OxPL/apoB) predicted cardiovascular events independent of traditional risk factors, C-reactive protein (hsCRP), and the Framingham Risk Score (FRS). A recent cross-sectional study showed that levels of oxylipins, namely 8,9-DiHETrE and 16-HETE, were significantly associated with cardiovascular and cerebrovascular events, respectively. They found that with every 1 nmol/L increase in the concentrations of 8,9-DiHETrE, the odds of ACS increased by 454-fold. As lipid peroxidation makes heterogonous pools of secondary products, therefore, rapid multi-analyte quantification methods are needed for their assessment. Conventional lipid assessment methods such as chemical reagents or immunoassays lack specificity and sensitivity. Lipidomics may provide another layer of a detailed molecular level to lipid assessment, which may eventually lead to exploring novel biomarkers and/or new treatment options. Here, we will briefly review the lipidomics of bioactive lipids in ACS.
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Affiliation(s)
- Zahra Solati
- Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, MB R2H 2A6, Canada.
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada.
| | - Amir Ravandi
- Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, MB R2H 2A6, Canada.
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada.
- Section of Cardiology, Department of Internal Medicine, Max Rady College of Medicine, Faculty of Health Sciences, University of Manitoba, 409 Tache Avenue, Winnipeg, MB R2H 2A6, Canada.
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Yeang C, Hasanally D, Que X, Hung MY, Stamenkovic A, Chan D, Chaudhary R, Margulets V, Edel AL, Hoshijima M, Gu Y, Bradford W, Dalton N, Miu P, Cheung DY, Jassal DS, Pierce GN, Peterson KL, Kirshenbaum LA, Witztum JL, Tsimikas S, Ravandi A. Reduction of myocardial ischaemia-reperfusion injury by inactivating oxidized phospholipids. Cardiovasc Res 2019; 115:179-189. [PMID: 29850765 PMCID: PMC6302283 DOI: 10.1093/cvr/cvy136] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/18/2018] [Accepted: 05/22/2018] [Indexed: 02/06/2023] Open
Abstract
Aims Myocardial ischaemia followed by reperfusion (IR) causes an oxidative burst resulting in cellular dysfunction. Little is known about the impact of oxidative stress on cardiomyocyte lipids and their role in cardiac cell death. Our goal was to identify oxidized phosphatidylcholine-containing phospholipids (OxPL) generated during IR, and to determine their impact on cell viability and myocardial infarct size. Methods and results OxPL were quantitated in isolated rat cardiomyocytes using mass spectrophotometry following 24 h of IR. Cardiomyocyte cell death was quantitated following exogenously added OxPL and in the absence or presence of E06, a 'natural' murine monoclonal antibody that binds to the PC headgroup of OxPL. The impact of OxPL on mitochondria in cardiomyocytes was also determined using cell fractionation and Bnip expression. Transgenic Ldlr-/- mice, overexpressing a single-chain variable fragment of E06 (Ldlr-/--E06-scFv-Tg) were used to assess the effect of inactivating endogenously generated OxPL in vivo on myocardial infarct size. Following IR in vitro, isolated rat cardiomyocytes showed a significant increase in the specific OxPLs PONPC, POVPC, PAzPC, and PGPC (P < 0.05 to P < 0.001 for all). Exogenously added OxPLs resulted in significant death of rat cardiomyocytes, an effect inhibited by E06 (percent cell death with added POVPC was 22.6 ± 4.14% and with PONPC was 25.3 ± 3.4% compared to 8.0 ± 1.6% and 6.4 ± 1.0%, respectively, with the addition of E06, P < 0.05 for both). IR increased mitochondrial content of OxPL in rat cardiomyocytes and also increased expression of Bcl-2 death protein 3 (Bnip3), which was inhibited in presence of E06. Notably cardiomyocytes with Bnip3 knock-down were protected against cytotoxic effects of OxPL. In mice exposed to myocardial IR in vivo, compared to Ldlr-/- mice, Ldlr-/--E06-scFv-Tg mice had significantly smaller myocardial infarct size normalized to area at risk (72.4 ± 21.9% vs. 47.7 ± 17.6%, P = 0.023). Conclusions OxPL are generated within cardiomyocytes during IR and have detrimental effects on cardiomyocyte viability. Inactivation of OxPL in vivo results in a reduction of infarct size.
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MESH Headings
- Animals
- Cell Death
- Cells, Cultured
- Disease Models, Animal
- Male
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/pathology
- Mitochondrial Proteins/genetics
- Mitochondrial Proteins/metabolism
- Myocardial Infarction/genetics
- Myocardial Infarction/metabolism
- Myocardial Infarction/pathology
- Myocardial Infarction/prevention & control
- Myocardial Reperfusion Injury/genetics
- Myocardial Reperfusion Injury/metabolism
- Myocardial Reperfusion Injury/pathology
- Myocardial Reperfusion Injury/prevention & control
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Oxidation-Reduction
- Oxidative Stress/drug effects
- Phospholipids/metabolism
- Rats, Sprague-Dawley
- Receptors, LDL/genetics
- Receptors, LDL/metabolism
- Signal Transduction
- Single-Chain Antibodies/genetics
- Single-Chain Antibodies/metabolism
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Affiliation(s)
- Calvin Yeang
- Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Devin Hasanally
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Xuchu Que
- Division of Endocrinology and Metabolism, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Ming-Yow Hung
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan
| | - Aleksandra Stamenkovic
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - David Chan
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Rakesh Chaudhary
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Victoria Margulets
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Andrea L Edel
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Masahiko Hoshijima
- Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Yusu Gu
- Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - William Bradford
- Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Nancy Dalton
- Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Phuong Miu
- Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - David Yc Cheung
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Davinder S Jassal
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Grant N Pierce
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Kirk L Peterson
- Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Lorrie A Kirshenbaum
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Joseph L Witztum
- Division of Endocrinology and Metabolism, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Sotirios Tsimikas
- Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Amir Ravandi
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
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Gonen A, Choi SH, Miu P, Agatisa-Boyle C, Acks D, Taylor AM, McNamara CA, Tsimikas S, Witztum JL, Miller YI. A monoclonal antibody to assess oxidized cholesteryl esters associated with apoAI and apoB-100 lipoproteins in human plasma. J Lipid Res 2018; 60:436-445. [PMID: 30563909 PMCID: PMC6358287 DOI: 10.1194/jlr.d090852] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/15/2018] [Indexed: 11/20/2022] Open
Abstract
Atherosclerosis is associated with increased lipid peroxidation, leading to generation of multiple oxidation-specific epitopes (OSEs), contributing to the pathogenesis of atherosclerosis and its clinical manifestation. Oxidized cholesteryl esters (OxCEs) are a major class of OSEs found in human plasma and atherosclerotic tissue. To evaluate OxCEs as a candidate biomarker, we generated a novel mouse monoclonal Ab (mAb) specific to an OxCE modification of proteins. The mAb AG23 (IgG1) was raised in C57BL6 mice immunized with OxCE-modified keyhole limpet hemocyanin, and hybridomas were screened against OxCE-modified BSA. This method ensures mAb specificity to the OxCE modification, independent of a carrier protein. AG23 specifically stained human carotid artery atherosclerotic lesions. An ELISA method, with AG23 as a capture and either anti-apoAI or anti-apoB-100 as the detection Abs, was developed to assay apoAI and apoB-100 lipoproteins that have one or more OxCE epitopes. OxCE-apoA or OxCE-apoB did not correlate with the well-established oxidized phospholipid-apoB biomarker. In a cohort of subjects treated with atorvastatin, OxCE-apoA was significantly lower than in the placebo group, independent of the apoAI levels. These results suggest the potential diagnostic utility of a new biomarker assay to measure OxCE-modified lipoproteins in patients with CVD.
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Affiliation(s)
- Ayelet Gonen
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Soo-Ho Choi
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Phuong Miu
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Colin Agatisa-Boyle
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Daniel Acks
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Angela M Taylor
- Cardiovascular Research Center, Department of Medicine, University of Virginia, Charlottesville, VA 22908
| | - Coleen A McNamara
- Cardiovascular Research Center, Department of Medicine, University of Virginia, Charlottesville, VA 22908
| | - Sotirios Tsimikas
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Joseph L Witztum
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Yury I Miller
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
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40
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Guo S, Lu J, Zhuo Y, Xiao M, Xue X, Zhong S, Shen X, Yin C, Li L, Chen Q, Zhu M, Chen B, Zhao M, Zheng L, Tao Y, Yin H. Endogenous cholesterol ester hydroperoxides modulate cholesterol levels and inhibit cholesterol uptake in hepatocytes and macrophages. Redox Biol 2018; 21:101069. [PMID: 30576926 PMCID: PMC6302155 DOI: 10.1016/j.redox.2018.101069] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 12/06/2018] [Indexed: 12/14/2022] Open
Abstract
Dysregulation of cholesterol metabolism represents one of the major risk factors for atherosclerotic cardiovascular disease (CVD). Oxidized cholesterol esters (oxCE) in low-density lipoprotein (LDL) have been implicated in CVD but the underlying mechanisms remain poorly defined. We use a targeted lipidomic approach to demonstrate that levels of oxCEs in human plasma are associated with different types of CVD and significantly elevated in patients with myocardial infarction. We synthesized a major endogenous cholesterol ester hydroperoxide (CEOOH), cholesteryl-13(cis, trans)-hydroperoxy-octadecadienoate (ch-13(c,t)-HpODE) and show that this endogenous compound significantly increases plasma cholesterol level in mice while decrease cholesterol levels in mouse liver and peritoneal macrophages, which is primarily due to the inhibition of cholesterol uptake in macrophages and liver. Further studies indicate that inhibition of cholesterol uptake by ch-13(c,t)-HpODE in macrophages is dependent on LXRα-IDOL-LDLR pathway, whereas inhibition on cholesterol levels in hepatocytes is dependent on LXRα and LDLR. Consistently, these effects on cholesterol levels by ch-13(c,t)-HpODE are diminished in LDLR or LXRα knockout mice. Together, our study provides evidence that elevated plasma cholesterol levels by CEOOHs are primarily due to the inhibition of cholesterol uptake in the liver and macrophages, which may play an important role in the pathogenesis of CVD.
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Affiliation(s)
- Shuyuan Guo
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Jianhong Lu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China
| | - Yujuan Zhuo
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Mengqing Xiao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Xinli Xue
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China
| | - Shanshan Zhong
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China
| | - Xia Shen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Chunzhao Yin
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Luxiao Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Qun Chen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China
| | - Mingjiang Zhu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China
| | - Buxing Chen
- Department of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Mingming Zhao
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Lemin Zheng
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Yongzhen Tao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China
| | - Huiyong Yin
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China; Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100000, China.
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41
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Cho KI, Sakuma I, Sohn IS, Jo SH, Koh KK. Inflammatory and metabolic mechanisms underlying the calcific aortic valve disease. Atherosclerosis 2018; 277:60-65. [PMID: 30173080 DOI: 10.1016/j.atherosclerosis.2018.08.029] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/04/2018] [Accepted: 08/24/2018] [Indexed: 12/19/2022]
Abstract
Although calcific aortic stenosis is a very common disease with major adverse cardiovascular events and healthcare costs, there are no effective medical interventions to delay or halt its progression. Cardiometabolic risk factors, including smoking and male sex, are linked to aortic stenosis. Emerging studies have identified important regulatory roles for immunological and inflammatory responses, including oxidized lipids, various cytokines, and biomineralization. Recent clinical and experimental studies in atherosclerosis and osteoporosis have demonstrated that oxidative stress and oxidized lipids decrease bone formation in the skeletal system while they increase bone formation in the cardiovascular system. Multidisciplinary factors contribute to vascular calcification, including inflammation and metabolic regulation of osteogenesis in the cardiovascular system via similar signaling pathways as bone formation. Calcific aortic valve disease (CAVD) is no longer considered a simple passive process of calcium deposition that occurs with advanced age. Biomineralization in CAVD is a complex, regulated process that involves valvular, circulating, bone marrow-derived cells, macrophage heterogeneity and genetic factors along with biochemical and mechanical factors. The current review will discuss the recently discovered important role of inflammation, metabolic risk factors, and molecular and cellular mechanisms that promote CAVD, as well as the link between osteogenic signals in the skeletal and cardiovascular systems. This may inform future therapeutic strategies for CAVD progression.
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Affiliation(s)
- Kyoung Im Cho
- Department of Cardiology, Kosin University Gospel Hospital, Busan, Republic of Korea
| | - Ichiro Sakuma
- Cardiovascular Medicine, Hokko Memorial Clinic, Sapporo, Japan; Health Science University of Hokkaido, Tobetsu, Japan
| | - Il Suk Sohn
- Department of Cardiology, Cardiovascular Center, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
| | - Sang-Ho Jo
- Department of Cardiology, Hanlym University Hospital at Pyungchon, Pyungchon, Republic of Korea
| | - Kwang Kon Koh
- Department of Cardiovascular Medicine, Heart Center, Gachon University Gil Medical Center, Incheon, Republic of Korea; Gachon Cardiovascular Research Institute, Incheon, Republic of Korea.
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42
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Agarwal P, Cole LK, Chandrakumar A, Hauff KD, Ravandi A, Dolinsky VW, Hatch GM. Phosphokinome Analysis of Barth Syndrome Lymphoblasts Identify Novel Targets in the Pathophysiology of the Disease. Int J Mol Sci 2018; 19:ijms19072026. [PMID: 30002286 PMCID: PMC6073761 DOI: 10.3390/ijms19072026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/06/2018] [Accepted: 07/09/2018] [Indexed: 12/25/2022] Open
Abstract
Barth Syndrome (BTHS) is a rare X-linked genetic disease in which the specific biochemical deficit is a reduction in the mitochondrial phospholipid cardiolipin (CL) as a result of a mutation in the CL transacylase tafazzin. We compared the phosphokinome profile in Epstein-Barr-virus-transformed lymphoblasts prepared from a BTHS patient with that of an age-matched control individual. As expected, mass spectrometry analysis revealed a significant (>90%) reduction in CL in BTHS lymphoblasts compared to controls. In addition, increased oxidized phosphatidylcholine (oxPC) and phosphatidylethanolamine (PE) levels were observed in BTHS lymphoblasts compared to control. Given the broad shifts in metabolism associated with BTHS, we hypothesized that marked differences in posttranslational modifications such as phosphorylation would be present in the lymphoblast cells of a BTHS patient. Phosphokinome analysis revealed striking differences in the phosphorylation levels of phosphoproteins in BTHS lymphoblasts compared to control cells. Some phosphorylated proteins, for example, adenosine monophosphate kinase, have been previously validated as bonafide modified phosphorylation targets observed in tafazzin deficiency or under conditions of reduced cellular CL. Thus, we report multiple novel phosphokinome targets in BTHS lymphoblasts and hypothesize that alteration in the phosphokinome profile may provide insight into the pathophysiology of BTHS and potential therapeutic targets.
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Affiliation(s)
- Prasoon Agarwal
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB R3E 3P4, Canada.
- Diabetes Research Envisioned and Accomplished in Manitoba (DREAM), Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3E 3P4, Canada.
- Manitoba Developmental Origins of Chronic Diseases in Children Network (DEVOTION), University of Manitoba, Winnipeg, MB R3E 3P4, Canada.
| | - Laura K Cole
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB R3E 3P4, Canada.
| | - Abin Chandrakumar
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB R3E 3P4, Canada.
- Clinical Research Unit, Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3E 3P4, Canada.
| | - Kristin D Hauff
- Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, Canada.
| | - Amir Ravandi
- Physiology and Pathophysiology, University of Manitoba, St. Boniface Hospital Research Center, Winnipeg, MB R2H 2A6, Canada.
| | - Vernon W Dolinsky
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB R3E 3P4, Canada.
- Diabetes Research Envisioned and Accomplished in Manitoba (DREAM), Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3E 3P4, Canada.
- Manitoba Developmental Origins of Chronic Diseases in Children Network (DEVOTION), University of Manitoba, Winnipeg, MB R3E 3P4, Canada.
| | - Grant M Hatch
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB R3E 3P4, Canada.
- Diabetes Research Envisioned and Accomplished in Manitoba (DREAM), Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3E 3P4, Canada.
- Center for Research and Treatment of Atherosclerosis, University of Manitoba, Winnipeg, MB R3E 3P4, Canada.
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Mohammadi M, Oehler B, Kloka J, Martin C, Brack A, Blum R, Rittner HL. Antinociception by the anti-oxidized phospholipid antibody E06. Br J Pharmacol 2018; 175:2940-2955. [PMID: 29679953 DOI: 10.1111/bph.14340] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 03/08/2018] [Accepted: 04/05/2018] [Indexed: 12/11/2022] Open
Affiliation(s)
- Milad Mohammadi
- Department of Anaesthesiology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Beatrice Oehler
- Department of Anaesthesiology, University Hospital of Wuerzburg, Wuerzburg, Germany.,Institute of Clinical Neurobiology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Jan Kloka
- Department of Anaesthesiology, University Hospital of Wuerzburg, Wuerzburg, Germany.,Institute of Clinical Neurobiology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Corinna Martin
- Institute of Clinical Neurobiology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Alexander Brack
- Department of Anaesthesiology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Robert Blum
- Institute of Clinical Neurobiology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Heike L Rittner
- Department of Anaesthesiology, University Hospital of Wuerzburg, Wuerzburg, Germany
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Hartikainen J, Hassinen I, Hedman A, Kivelä A, Saraste A, Knuuti J, Husso M, Mussalo H, Hedman M, Rissanen TT, Toivanen P, Heikura T, Witztum JL, Tsimikas S, Ylä-Herttuala S. Adenoviral intramyocardial VEGF-DΔNΔC gene transfer increases myocardial perfusion reserve in refractory angina patients: a phase I/IIa study with 1-year follow-up. Eur Heart J 2018; 38:2547-2555. [PMID: 28903476 PMCID: PMC5837555 DOI: 10.1093/eurheartj/ehx352] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 06/02/2017] [Indexed: 12/18/2022] Open
Abstract
Aims We evaluated for the first time the effects of angiogenic and lymphangiogenic AdVEGF-DΔNΔC gene therapy in patients with refractory angina. Methods and results Thirty patients were randomized to AdVEGF-DΔNΔC (AdVEGF-D) or placebo (control) groups. Electromechanical NOGA mapping and radiowater PET were used to identify hibernating viable myocardium where treatment was targeted. Safety, severity of symptoms, quality of life, lipoprotein(a) [Lp(a)] and routine clinical chemistry were measured. Myocardial perfusion reserve (MPR) was assessed with radiowater PET at baseline and after 3- and 12-months follow-up. Treatment was well tolerated. Myocardial perfusion reserve increased significantly in the treated area in the AdVEGF-D group compared with baseline (1.00 ± 0.36) at 3 months (1.31 ± 0.46, P = 0.045) and 12 months (1.44 ± 0.48, P = 0.009) whereas MPR in the reference area tended to decrease (2.05 ± 0.69, 1.76 ± 0.62, and 1.87 ± 0.69; baseline, 3 and 12 months, respectively, P = 0.551). Myocardial perfusion reserve in the control group showed no significant change from baseline to 3 and 12 months (1.26 ± 0.37, 1.57 ± 0.55, and 1.48 ± 0.48; respectively, P = 0.690). No major changes were found in clinical chemistry but anti-adenovirus antibodies increased in 54% of the treated patients compared with baseline. AdVEGF-D patients in the highest Lp(a) tertile at baseline showed the best response to therapy (MPR 0.94 ± 0.32 and 1.76 ± 0.41 baseline and 12 months, respectively, P = 0.023). Conclusion AdVEGF-DΔNΔC gene therapy was safe, feasible, and well tolerated. Myocardial perfusion increased at 1 year in the treated areas with impaired MPR at baseline. Plasma Lp(a) may be a potential biomarker to identify patients that may have the greatest benefit with this therapy.
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Affiliation(s)
- Juha Hartikainen
- Heart Center, Kuopio University Hospital, Kuopio 70029, Finland.,Institute of Clinical Medicine, University of Eastern Finland, Kuopio 70211, Finland
| | - Iiro Hassinen
- Heart Center, Kuopio University Hospital, Kuopio 70029, Finland
| | - Antti Hedman
- Heart Center, Kuopio University Hospital, Kuopio 70029, Finland
| | - Antti Kivelä
- Heart Center, Kuopio University Hospital, Kuopio 70029, Finland
| | - Antti Saraste
- Turku PET Centre, Turku University Hospital, Turku 20521, Finland
| | - Juhani Knuuti
- Turku PET Centre, Turku University Hospital, Turku 20521, Finland
| | - Minna Husso
- Center of Diagnostic Imaging, Kuopio University Hospital, Kuopio 70029, Finland
| | - Hanna Mussalo
- Center of Diagnostic Imaging, Kuopio University Hospital, Kuopio 70029, Finland
| | - Marja Hedman
- Heart Center, Kuopio University Hospital, Kuopio 70029, Finland.,Center of Diagnostic Imaging, Kuopio University Hospital, Kuopio 70029, Finland
| | - Tuomas T Rissanen
- Heart Center, Kuopio University Hospital, Kuopio 70029, Finland.,Heart Center, Central Hospital of North Karelia, Joensuu 80210, Finland
| | - Pyry Toivanen
- A.I. Virtanen Institute, University of Eastern Finland, Kuopio 70211, Finland
| | - Tommi Heikura
- A.I. Virtanen Institute, University of Eastern Finland, Kuopio 70211, Finland
| | | | | | - Seppo Ylä-Herttuala
- Heart Center, Kuopio University Hospital, Kuopio 70029, Finland.,A.I. Virtanen Institute, University of Eastern Finland, Kuopio 70211, Finland.,Gene Therapy Unit, Kuopio University Hospital, Kuopio 70029, Finland
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Solati Z, Edel AL, Shang Y, O K, Ravandi A. Oxidized phosphatidylcholines are produced in renal ischemia reperfusion injury. PLoS One 2018; 13:e0195172. [PMID: 29684044 PMCID: PMC5912739 DOI: 10.1371/journal.pone.0195172] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 03/16/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The aim of this study was to determine the individual oxidized phosphatidylcholine (OxPC) molecules generated during renal ischemia/ reperfusion (I/R) injury. METHODS Kidney ischemia was induced in male Sprague-Dawley rats by clamping the left renal pedicle for 45 min followed by reperfusion for either 6h or 24h. Kidney tissue was subjected to lipid extraction. Phospholipids and OxPC species were identified and quantitated using liquid chromatography coupled to electrospray ionization tandem mass spectrometry using internal standards. RESULT We identified fifty-five distinct OxPC in rat kidney following I/R injury. These included a variety of fragmented (aldehyde and carboxylic acid containing species) and non-fragmented products. 1-stearoyl-2-linoleoyl-phosphatidylcholine (SLPC-OH), which is a non-fragmented OxPC and 1-palmitoyl-2-azelaoyl-sn-glycero-3-phosphocholine (PAzPC), which is a fragmented OxPC, were the most abundant OxPC species after 6h and 24 h I/R respectively. Total fragmented aldehyde OxPC were significantly higher in 6h and 24h I/R groups compared to sham operated groups (P = 0.03, 0.001 respectively). Moreover, levels of aldehyde OxPC at 24h I/R were significantly greater than those in 6h I/R (P = 0.007). Fragmented carboxylic acid increased significantly in 24h I/R group compared with sham and 6h I/R groups (P = 0.001, 0.001). Moreover, levels of fragmented OxPC were significantly correlated with creatinine levels (r = 0.885, P = 0.001). Among non-fragmented OxPC, only isoprostanes were elevated significantly in 6h I/R group compared with sham group but not in 24h I/R group (P = 0.01). No significant changes were observed in other non-fragmented OxPC including long chain products and terminal furans. CONCLUSION We have shown for the first time that bioactive OxPC species are produced in renal I/R and their levels increase with increasing time of reperfusion in a kidney model of I/R and correlate with severity of I/R injury. Given the pathological activity of fragmented OxPCs, therapies focused on their reduction may be a mechanism to attenuate renal I/R injury.
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Affiliation(s)
- Zahra Solati
- Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Andrea L. Edel
- Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Yue Shang
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Animal Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Karmin O
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Animal Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Amir Ravandi
- Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
- * E-mail:
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Gaddis DE, Padgett LE, Wu R, McSkimming C, Romines V, Taylor AM, McNamara CA, Kronenberg M, Crotty S, Thomas MJ, Sorci-Thomas MG, Hedrick CC. Apolipoprotein AI prevents regulatory to follicular helper T cell switching during atherosclerosis. Nat Commun 2018; 9:1095. [PMID: 29545616 PMCID: PMC5854619 DOI: 10.1038/s41467-018-03493-5] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 02/19/2018] [Indexed: 12/18/2022] Open
Abstract
Regulatory T (Treg) cells contribute to the anti-inflammatory response during atherogenesis. Here we show that during atherogenesis Treg cells lose Foxp3 expression and their immunosuppressive function, leading to the conversion of a fraction of these cells into T follicular helper (Tfh) cells. We show that Tfh cells are pro-atherogenic and that their depletion reduces atherosclerosis. Mechanistically, the conversion of Treg cells to Tfh cells correlates with reduced expression of IL-2Rα and pSTAT5 levels and increased expression of IL-6Rα. In vitro, incubation of naive T cells with oxLDL prevents their differentiation into Treg cells. Furthermore, injection of lipid-free Apolipoprotein AI (ApoAI) into ApoE−/− mice reduces intracellular cholesterol levels in Treg cells and prevents their conversion into Tfh cells. Together our results suggest that ApoAI, the main protein in high-density lipoprotein particles, modulates the cellular fate of Treg cells and thus influences the immune response during atherosclerosis. Regulatory T (Treg) cells contribute to the anti-inflammatory response during atherogenesis. Here Gaddis et al. show that Apolipoprotein AI prevents the conversion of Treg cells into pro-atherogenic T follicular helper cells, and thus regulates the immune response during atherogenesis.
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Affiliation(s)
- Dalia E Gaddis
- Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
| | - Lindsey E Padgett
- Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
| | - Runpei Wu
- Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
| | - Chantel McSkimming
- Cardiovascular Research Center and Division of Cardiology, University of Virginia, 415 Lane Road, Charlottesville, VA, 22908, USA
| | - Veronica Romines
- Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
| | - Angela M Taylor
- Cardiovascular Research Center and Division of Cardiology, University of Virginia, 415 Lane Road, Charlottesville, VA, 22908, USA
| | - Coleen A McNamara
- Cardiovascular Research Center and Division of Cardiology, University of Virginia, 415 Lane Road, Charlottesville, VA, 22908, USA
| | - Mitchell Kronenberg
- Division of Developmental Immunology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
| | - Shane Crotty
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA.,Division of Infectious Diseases, Department of Medicine, UCSD School of Medicine, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Michael J Thomas
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI, 53226, USA
| | - Mary G Sorci-Thomas
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI, 53226, USA.,Department of Medicine, Division of Endocrinology, Medical College of Wisconsin, 9200W. Wisconsin Ave., Milwaukee, WI, 53226, USA
| | - Catherine C Hedrick
- Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA.
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Association of D-dimer with Plaque Characteristics and Plasma Biomarkers of Oxidation-Specific Epitopes in Stable Subjects with Coronary Artery Disease. J Cardiovasc Transl Res 2018; 11:221-229. [PMID: 29344841 DOI: 10.1007/s12265-018-9790-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 01/09/2018] [Indexed: 12/20/2022]
Abstract
D-dimer has emerged as a biomarker of cardiovascular event risk, yet pathophysiological factors associated with plasma D-dimer levels in stable coronary artery disease (CAD) subjects are poorly understood. In 106 stable CAD subjects undergoing intravascular ultrasound with virtual histology (IVUS-VH), we measured D-dimer, lipoprotein(a) (Lp(a)), plasminogen, biomarkers reflecting oxidation-specific epitopes (OSE) such as oxidized phospholipids on apolipoprotein B-100 (OxPL-apoB), OxPL on plasminogen (OxPL-PLG), and autoantibodies to phosphorylcholine-BSA [PC-BSA] and a malondialdehyde [MDA] mimotope. In univariate analysis, D-dimer was positively associated with Lp(a), OxPL-apoB, OxPL-PLG, and coronary artery calcium, and inversely associated with autoantibodies to OSE and plaque fibrosis. D-dimer levels > 500 ng/ml also showed positive association with plaque necrosis. After multivariate analysis, D-dimer remained significantly associated with Lp(a) and plaque calcium. While further studies are needed, results provide evidence that plasma D-dimer levels are associated with levels of OxPLs and IVUS-VH indices linked to plaque erosion and rupture.
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Gritti BB, Binder C. Oxidation-specific epitopes are major targets of innate immunity in atherothrombosis. Hamostaseologie 2017; 36:89-96. [DOI: 10.5482/hamo-14-11-0069] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 01/30/2015] [Indexed: 01/08/2023] Open
Abstract
ZusammenfassungAtherosklerose ist eine chronisch-entzündliche Erkrankung der Gefäßwände, die durch das Zusammenspiel von Dyslipidämie und vermehrtem oxidativen Stress verursacht wird. Die damit verbundene Lipidperoxidation führt zu einer Reihe von Abbauprodukten von Membranlipiden, sogenannten oxidations-spezifischen Epitopen (OSE). OSE finden sich in oxidierten Lipoproteinen und auf der Oberfläche absterbender Zellen, und ihre Fähigkeit inflammatorische und thrombogene Reaktionen auszulösen ist weithin bekannt. Jüngste Studien konnten zeigen, daß OSE spezifische Zielstrukturen für eine Reihe von zellulären und humoralen Rezeptoren des angeborenen Immunsystems darstellen. Dadurch kann das Immunsystem, metabolische Abbaubprodukte erkennen und wichtige physiologische “Haushaltsfunktionen” vermitteln, z.B. durch die kontrollierte Entsorgung abgestorbener Zellen und oxidierten Moleküle. So wurde gezeigt, daß natürliche IgM Antikörper mit Spezifität für OSE Mäuse vor der Entstehung atherosklerotischer Läsionen schützen. So können spezifische natürliche IgM Antikörper die pro-inflammatorischen und pro-thrombotischen Effekte von OSE neutralisieren, währenddessen niedrige Plasmaspiegel OSE-spezifischer IgM Antikörper mit einem erhöhten Risiko für Myokardinfarkt assoziiert sind. Schlussfolgerung: Das Verständnis der molekularen Komponenten und Mechanismen, die an diesem Prozess beteiligt sind, werden in Zukunft dazu beitragen, Personen mit einem erhöhten Risiko für Atherothrombose besser zu identifizieren und möglicherweise neue therapeutische Ansatzpunkte zu definieren.
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Chen Q, Wang X, Cong P, Liu Y, Wang Y, Xu J, Xue C. Mechanism of Phospholipid Hydrolysis for Oyster Crassostrea plicatula
Phospholipids During Storage Using Shotgun Lipidomics. Lipids 2017; 52:1045-1058. [DOI: 10.1007/s11745-017-4305-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 09/19/2017] [Indexed: 11/24/2022]
Affiliation(s)
- Qinsheng Chen
- ; College of Food Science and Engineering; Ocean University of China; No. 5, Yu Shan Road Qingdao Shandong Province 266003 China
| | - Xincen Wang
- ; College of Tea and Food Science; Wuyi University; No. 16, Wu Yi Avenue Wuyishan Fujian Province 354300 China
| | - Peixu Cong
- ; College of Food Science and Engineering; Ocean University of China; No. 5, Yu Shan Road Qingdao Shandong Province 266003 China
| | - Yanjun Liu
- ; College of Food Science and Engineering; Ocean University of China; No. 5, Yu Shan Road Qingdao Shandong Province 266003 China
| | - Yuming Wang
- ; College of Food Science and Engineering; Ocean University of China; No. 5, Yu Shan Road Qingdao Shandong Province 266003 China
| | - Jie Xu
- ; College of Food Science and Engineering; Ocean University of China; No. 5, Yu Shan Road Qingdao Shandong Province 266003 China
| | - Changhu Xue
- ; College of Food Science and Engineering; Ocean University of China; No. 5, Yu Shan Road Qingdao Shandong Province 266003 China
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Bochkov V, Gesslbauer B, Mauerhofer C, Philippova M, Erne P, Oskolkova OV. Pleiotropic effects of oxidized phospholipids. Free Radic Biol Med 2017; 111:6-24. [PMID: 28027924 DOI: 10.1016/j.freeradbiomed.2016.12.034] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 12/25/2022]
Abstract
Oxidized phospholipids (OxPLs) are increasingly recognized to play a role in a variety of normal and pathological states. OxPLs were implicated in regulation of inflammation, thrombosis, angiogenesis, endothelial barrier function, immune tolerance and other important processes. Rapidly accumulating evidence suggests that OxPLs are biomarkers of atherosclerosis and other pathologies. In addition, successful application of experimental drugs based on structural scaffold of OxPLs in animal models of inflammation was recently reported. This review briefly summarizes current knowledge on generation, methods of quantification and biological activities of OxPLs. Furthermore, receptor and cellular mechanisms of these effects are discussed. The goal of the review is to give a broad overview of this class of lipid mediators inducing pleiotropic biological effects.
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Affiliation(s)
- Valery Bochkov
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Austria.
| | - Bernd Gesslbauer
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Austria
| | - Christina Mauerhofer
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Austria
| | - Maria Philippova
- Signaling Laboratory, Department of Biomedicine, Basel University Hospital, Basel, Switzerland
| | - Paul Erne
- Signaling Laboratory, Department of Biomedicine, Basel University Hospital, Basel, Switzerland
| | - Olga V Oskolkova
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Austria.
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