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Petan T, Manček-Keber M. Half is enough: Oxidized lysophospholipids as novel bioactive molecules. Free Radic Biol Med 2022; 188:351-362. [PMID: 35779690 DOI: 10.1016/j.freeradbiomed.2022.06.228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/01/2022] [Accepted: 06/13/2022] [Indexed: 10/17/2022]
Abstract
Studies in the last decade have established the roles of oxidized phospholipids as modulators of various cellular processes, from inflammation and immunity to cell death. Oxidized lysophospholipids, formed through the activity of phospholipases and oxidative enzymes and lacking an acyl chain in comparison with parent phospholipids, are now emerging as novel bioactive lipid mediators. Their detection and structural characterization have been limited in the past due to low amounts and the complexity of their biosynthetic and removal pathways, but recent studies have unequivocally demonstrated their formation under inflammatory conditions. The involvement of oxidized lysophospholipids in immune regulation classifies them as damage-associated molecular patterns (DAMPs), which can promote sterile inflammation and contribute to autoimmune and chronic diseases as well as aging-related diseases. Their signaling pathways are just beginning to be revealed. As the first publications indicate that oxidized lysophospholipids use the same receptors as pathogen-associated molecular patterns (PAMPs), it is likely that the inhibition of signaling pathways activated by oxidized lysophospholipids would affect innate immunity per se. On the other hand, inhibition or modulation of their enzymatic formation, which would not interfere with the response to pathogens, might be beneficial and is potentially a promising new field of research.
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Affiliation(s)
- Toni Petan
- Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, 1000, Ljubljana, Slovenia.
| | - Mateja Manček-Keber
- Department of Synthetic Biology and Immunology, National Institute of Chemistry, 1000, Ljubljana, Slovenia.
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2
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Protty MB, Jenkins PV, Collins PW, O'Donnell VB. The role of procoagulant phospholipids on the surface of circulating blood cells in thrombosis and haemostasis. Open Biol 2022; 12:210318. [PMID: 35440201 PMCID: PMC9019515 DOI: 10.1098/rsob.210318] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/21/2022] [Indexed: 01/09/2023] Open
Abstract
Phospholipids (PLs) are found in all cell types and are required for structural support and cell activation signalling pathways. In resting cells, PLs are asymmetrically distributed throughout the plasma membrane with native procoagulant aminophospholipids (aPLs) being actively maintained in the inner leaflet of the membrane. Upon platelet activation, aPLs rapidly externalize to the outer leaflet and are essential for supporting the coagulation cascade by providing binding sites for factors in the cell-based model. More recent work has uncovered a role for enzymatically oxidized PLs (eoxPLs) in facilitating coagulation, working in concert with native aPLs. Despite this, the role of aPLs and eoxPLs in thrombo-inflammatory conditions, such as arterial and venous thrombosis, has not been fully elucidated. In this review, we describe the biochemical structures, distribution and regulation of aPL externalization and summarize the literature on eoxPL generation in circulating blood cells. We focus on the currently understood role of these lipids in mediating coagulation reactions in vitro, in vivo and in human thrombotic disease. Finally, we highlight gaps in our understanding in how these lipids vary in health and disease, which may place them as future therapeutic targets for the management of thrombo-inflammatory conditions.
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Affiliation(s)
- Majd B. Protty
- Systems Immunity Research Institute, Cardiff University, Cardiff CF14 4XN, UK
| | - P. Vince Jenkins
- Systems Immunity Research Institute, Cardiff University, Cardiff CF14 4XN, UK
| | - Peter W. Collins
- Systems Immunity Research Institute, Cardiff University, Cardiff CF14 4XN, UK
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3
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O'Donnell VB. New appreciation for an old pathway: the Lands Cycle moves into new arenas in health and disease. Biochem Soc Trans 2022; 50:1-11. [PMID: 35225335 PMCID: PMC9022965 DOI: 10.1042/bst20210579] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/15/2022] [Accepted: 02/15/2022] [Indexed: 02/08/2023]
Abstract
The Lands Pathway is a fundamental biochemical process named for its discovery by William EM Lands and revealed in a series of seminal papers published in the Journal of Biological Chemistry between 1958-65. It describes the selective placement in phospholipids of acyl chains, by phospholipid acyltransferases. This pathway has formed a core component of our knowledge of phospholipid and also diglyceride metabolism in mammalian tissues for over 60 years now. Our understanding of how the Lands pathways are enzymatically mediated via large families of related gene products that display both substrate and tissue specificity has grown exponentially since. Recent studies building on this are starting to reveal key roles for the Lands pathway in specific scenarios, in particular inflammation, immunity and inflammation. This review will cover the Lands cycle from historical perspectives first, then present new information on how this important cycle forms a central regulatory node connecting fatty acyl and phospholipid metabolism and how its altered regulation may present new opportunities for therapeutic intervention in human disease.
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Affiliation(s)
- Valerie B. O'Donnell
- Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4SN, U.K
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4
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Viedma-Poyatos Á, González-Jiménez P, Langlois O, Company-Marín I, Spickett CM, Pérez-Sala D. Protein Lipoxidation: Basic Concepts and Emerging Roles. Antioxidants (Basel) 2021; 10:295. [PMID: 33669164 PMCID: PMC7919664 DOI: 10.3390/antiox10020295] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 12/13/2022] Open
Abstract
Protein lipoxidation is a non-enzymatic post-translational modification that consists of the covalent addition of reactive lipid species to proteins. This occurs under basal conditions but increases in situations associated with oxidative stress. Protein targets for lipoxidation include metabolic and signalling enzymes, cytoskeletal proteins, and transcription factors, among others. There is strong evidence for the involvement of protein lipoxidation in disease, including atherosclerosis, neurodegeneration, and cancer. Nevertheless, the involvement of lipoxidation in cellular regulatory mechanisms is less understood. Here we review basic aspects of protein lipoxidation and discuss several features that could support its role in cell signalling, including its selectivity, reversibility, and possibilities for regulation at the levels of the generation and/or detoxification of reactive lipids. Moreover, given the great structural variety of electrophilic lipid species, protein lipoxidation can contribute to the generation of multiple structurally and functionally diverse protein species. Finally, the nature of the lipoxidised proteins and residues provides a frameshift for a complex interplay with other post-translational modifications, including redox and redox-regulated modifications, such as oxidative modifications and phosphorylation, thus strengthening the importance of detailed knowledge of this process.
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Affiliation(s)
- Álvaro Viedma-Poyatos
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (C.S.I.C.), 28040 Madrid, Spain
| | - Patricia González-Jiménez
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (C.S.I.C.), 28040 Madrid, Spain
| | - Ophélie Langlois
- College of Health & Life Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Idoia Company-Marín
- College of Health & Life Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Corinne M Spickett
- College of Health & Life Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Dolores Pérez-Sala
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (C.S.I.C.), 28040 Madrid, Spain
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5
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Wheelock CE, Strandvik B. Abnormal n-6 fatty acid metabolism in cystic fibrosis contributes to pulmonary symptoms. Prostaglandins Leukot Essent Fatty Acids 2020; 160:102156. [PMID: 32750662 DOI: 10.1016/j.plefa.2020.102156] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/24/2020] [Accepted: 06/24/2020] [Indexed: 01/09/2023]
Abstract
Cystic fibrosis (CF) is a recessively inherited fatal disease that is the subject of extensive research and ongoing development of therapeutics targeting the defective protein, cystic fibrosis transmembrane conductance regulator (CFTR). Despite progress, the link between CFTR and clinical symptoms is incomplete. The severe CF phenotypes are associated with a deficiency of linoleic acid, which is the precursor of arachidonic acid. The release of arachidonic acid from membranes via phospholipase A2 is the rate-limiting step for eicosanoid synthesis and is increased in CF, which contributes to the observed inflammation. A potential deficiency of docosahexaenoic acid may lead to decreased levels of specialized pro-resolving mediators. This pathophysiology may contribute to an early and sterile inflammation, mucus production, and to bacterial colonization, which further increases inflammation and potentiates the clinical symptoms. Advances in lipid technology will assist in elucidating the role of lipid metabolism in CF, and stimulate therapeutic modulations of inflammation.
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Affiliation(s)
- Craig E Wheelock
- Division of Physiological Chemistry 2, Dept of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Birgitta Strandvik
- Dept of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden.
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6
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Oskolkova OV, Bochkov VN. Gain of function mechanisms triggering biological effects of oxidized phospholipids. CURRENT OPINION IN TOXICOLOGY 2020. [DOI: 10.1016/j.cotox.2020.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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7
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Colombo S, Criscuolo A, Zeller M, Fedorova M, Domingues MR, Domingues P. Analysis of oxidised and glycated aminophospholipids: Complete structural characterisation by C30 liquid chromatography-high resolution tandem mass spectrometry. Free Radic Biol Med 2019; 144:144-155. [PMID: 31150763 DOI: 10.1016/j.freeradbiomed.2019.05.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/14/2019] [Accepted: 05/22/2019] [Indexed: 12/19/2022]
Abstract
The aminophospholipids (APL), phosphatidylethanolamine (PE) and phosphatidylserine (PS) are widely present in cell membranes and lipoproteins. Glucose and reactive oxygen species (ROS), such as the hydroxyl radical (•OH), can react with APL leading to an array of oxidised, glycated and glycoxidised derivatives. Modified APL have been implicated in inflammatory diseases and diabetes, and were identified as signalling molecules regulating cell death. However, the biological relevance of these molecules has not been completely established, since they are present in very low amounts, and new sensitive methodologies are needed to detect them in biological systems. Few studies have focused on the characterisation of APL modifications using liquid chromatography-tandem mass spectrometry (LC-MS/MS), mainly using C5 or C18 reversed phase (RP) columns. In the present study, we propose a new analytical approach for the characterisation of complex mixtures of oxidised, glycated and glycoxidised PE and PS. This LC approach was based on a reversed-phase C30 column combined with high-resolution MS, and higher energy C-trap dissociation (HCD) MS/MS. C30 RP-LC separated short and long fatty acyl oxidation products, along with glycoxidised APL bearing oxidative modifications on the glucose moiety and the fatty acyl chains. Functional isomers (e.g. hydroxy-hydroperoxy-APL and tri-hydroxy-APL) and positional isomers (e.g. 9-hydroxy-APL and 13-hydroxy-APL) were also discriminated by the method. HCD fragmentation patterns allowed unequivocal structural characterisation of the modified APL, and are translatable into targeted MS/MS fingerprinting of the modified derivatives in biological samples.
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Affiliation(s)
- Simone Colombo
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Angela Criscuolo
- Thermo Fisher Scientific, Hanna-Kunath-Straße 11, 28199, Bremen, Germany; Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Universität Leipzig, Germany; Center for Biotechnology and Biomedicine, Universität Leipzig, Germany
| | - Martin Zeller
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Maria Fedorova
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Universität Leipzig, Germany; Center for Biotechnology and Biomedicine, Universität Leipzig, Germany
| | - M Rosário Domingues
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal; Department of Chemistry & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Pedro Domingues
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
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8
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Colombo S, Domingues P, Domingues MR. Mass spectrometry strategies to unveil modified aminophospholipids of biological interest. MASS SPECTROMETRY REVIEWS 2019; 38:323-355. [PMID: 30597614 DOI: 10.1002/mas.21584] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 10/30/2018] [Indexed: 06/09/2023]
Abstract
The biological functions of modified aminophospholipids (APL) have become a topic of interest during the last two decades, and distinct roles have been found for these biomolecules in both physiological and pathological contexts. Modifications of APL include oxidation, glycation, and adduction to electrophilic aldehydes, altogether contributing to a high structural variability of modified APL. An outstanding technique used in this challenging field is mass spectrometry (MS). MS has been widely used to unveil modified APL of biological interest, mainly when associated with soft ionization methods (electrospray and matrix-assisted laser desorption ionization) and coupled with separation techniques as liquid chromatography. This review summarizes the biological roles and the chemical mechanisms underlying APL modifications, and comprehensively reviews the current MS-based knowledge that has been gathered until now for their analysis. The interpretation of the MS data obtained by in vitro-identification studies is explained in detail. The perspective of an analytical detection of modified APL in clinical samples is explored, highlighting the fundamental role of MS in unveiling APL modifications and their relevance in pathophysiology.
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Affiliation(s)
- Simone Colombo
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Pedro Domingues
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - M Rosário Domingues
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
- Department of Chemistry and CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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9
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O'Donnell VB, Aldrovandi M, Murphy RC, Krönke G. Enzymatically oxidized phospholipids assume center stage as essential regulators of innate immunity and cell death. Sci Signal 2019; 12:12/574/eaau2293. [PMID: 30914483 DOI: 10.1126/scisignal.aau2293] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Enzymatically oxidized phospholipids (eoxPLs) are formed through regulated processes by which eicosanoids or prostaglandins are attached to phospholipids (PLs) in immune cells. These eoxPLs comprise structurally diverse families of biomolecules with potent bioactivities, and they have important immunoregulatory roles in both health and disease. The formation of oxPLs through enzymatic pathways and their signaling capabilities are emerging concepts. This paradigm is changing our understanding of eicosanoid, prostaglandin, and PL biology in health and disease. eoxPLs have roles in cellular events such as ferroptosis, apoptosis, and blood clotting and diseases such as arthritis, diabetes, and cardiovascular disease. They are increasingly recognized as endogenous bioactive mediators and potential targets for drug development. This review will describe recent evidence that places eoxPLs and their biosynthetic pathways center stage in immunoregulation.
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Affiliation(s)
- Valerie B O'Donnell
- Systems Immunity Research Institute, Cardiff University, Cardiff CF14 4XN, UK.
| | - Maceler Aldrovandi
- Systems Immunity Research Institute, Cardiff University, Cardiff CF14 4XN, UK
| | - Robert C Murphy
- Department of Pharmacology, University of Colorado, 12801 East 17th Avenue, Aurora, CO 80045, USA
| | - Gerhard Krönke
- Department of Internal Medicine 3-Rheumatology and Immunology, University Hospital Erlangen and Friedrich-Alexander University Erlangen-Nuremberg (FAU) 91054, Erlangen, Germany
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10
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Dias IHK, Ferreira R, Gruber F, Vitorino R, Rivas-Urbina A, Sanchez-Quesada JL, Vieira Silva J, Fardilha M, de Freitas V, Reis A. Sulfate-based lipids: Analysis of healthy human fluids and cell extracts. Chem Phys Lipids 2019; 221:53-64. [PMID: 30910732 DOI: 10.1016/j.chemphyslip.2019.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/15/2019] [Accepted: 03/15/2019] [Indexed: 12/12/2022]
Abstract
Sulfate-based lipids (SL) have been proposed as players in inflammation, immunity and infection. In spite of the many biochemical processes linked to SL, analysis on this class of lipids has only focused on specific SL sub-classes in individual fluids or cells leaving a range of additional SL in other biological samples unaccounted for. This study describes the mass spectrometry screening of SL in lipid extracts of human fluids (saliva, plasma, urine, seminal fluid) and primary human cells (RBC, neutrophils, fibroblasts and skin epidermal) using targeted precursor ion scanning (PIS) approach. The PIS 97 mass spectra reveal a wide diversity of SL including steroid sulfates, sulfoglycolipids and other unidentified SL, as well as metabolites such as taurines, sulfated polyphenols and hypurate conjugates. Semi-quantification of SL revealed that plasma exhibited the highest content of SL whereas seminal fluid and epithelial cells contained the highest sulphur to phosphorous (S/P) ratio. The complexity of biofluids and cells sulfateome presented in this study highlight the importance of expanding the panel of synthetic sulfate-based lipid standards. Also, the heterogenous distribution of SL provides evidence for the interplay of sulfotransferases/sulfatases, opening new avenues for biomarker discovery in oral health, cardiovascular, fertility and dermatology research areas.
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Affiliation(s)
| | - Rita Ferreira
- Departamento de Quimica, Research Unit of Química Orgânica, Produtos Naturais e Agro-alimentares (QOPNA), Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Florian Gruber
- Medical University of Vienna, Department of Dermatology, Vienna, Austria; Christian Doppler Laboratory for Biotechnology of Skin Aging, Vienna, Austria
| | - Rui Vitorino
- Unidade de Investigação Cardiovascular, Departamento de Cirurgia e Fisiologia, Faculdade de Medicina, Universidade do Porto, 4200-319, Porto, Portugal; Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Andrea Rivas-Urbina
- Cardiovascular Biochemistry, Biomedical Research Institute IIB Sant Pau, Sant Antoni Ma Claret, 167, Barcelona, Spain
| | - José Luis Sanchez-Quesada
- Cardiovascular Biochemistry, Biomedical Research Institute IIB Sant Pau, Sant Antoni Ma Claret, 167, Barcelona, Spain
| | - Joana Vieira Silva
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, 3810-193, Aveiro, Portugal; Reproductive Genetics & Embryo-fetal Development Group, Institute for Innovation and Health Research (I3S), University of Porto, Porto, Portugal; Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Margarida Fardilha
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Victor de Freitas
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre 687, 4169-007, Porto, Portugal
| | - Ana Reis
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre 687, 4169-007, Porto, Portugal.
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11
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Tyurina YY, Shrivastava I, Tyurin VA, Mao G, Dar HH, Watkins S, Epperly M, Bahar I, Shvedova AA, Pitt B, Wenzel SE, Mallampalli RK, Sadovsky Y, Gabrilovich D, Greenberger JS, Bayır H, Kagan VE. "Only a Life Lived for Others Is Worth Living": Redox Signaling by Oxygenated Phospholipids in Cell Fate Decisions. Antioxid Redox Signal 2018; 29:1333-1358. [PMID: 28835115 PMCID: PMC6157439 DOI: 10.1089/ars.2017.7124] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 08/10/2017] [Accepted: 08/18/2017] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE Oxygenated polyunsaturated lipids are known to play multi-functional roles as essential signals coordinating metabolism and physiology. Among them are well-studied eicosanoids and docosanoids that are generated via phospholipase A2 hydrolysis of membrane phospholipids and subsequent oxygenation of free polyunsaturated fatty acids (PUFA) by cyclooxygenases and lipoxygenases. Recent Advances: There is an emerging understanding that oxygenated PUFA-phospholipids also represent a rich signaling language with yet-to-be-deciphered details of the execution machinery-oxygenating enzymes, regulators, and receptors. Both free and esterified oxygenated PUFA signals are generated in cells, and their cross-talk and inter-conversion through the de-acylation/re-acylation reactions is not sufficiently explored. CRITICAL ISSUES Here, we review recent data related to oxygenated phospholipids as important damage signals that trigger programmed cell death pathways to eliminate irreparably injured cells and preserve the health of multicellular environments. We discuss the mechanisms underlying the trans-membrane redistribution and generation of oxygenated cardiolipins in mitochondria by cytochrome c as pro-apoptotic signals. We also consider the role of oxygenated phosphatidylethanolamines as proximate pro-ferroptotic signals. FUTURE DIRECTIONS We highlight the importance of sequential processes of phospholipid oxygenation and signaling in disease contexts as opportunities to use their regulatory mechanisms for the identification of new therapeutic targets.
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Affiliation(s)
- Yulia Y. Tyurina
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Indira Shrivastava
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Vladimir A. Tyurin
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Gaowei Mao
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Haider H. Dar
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Simon Watkins
- Department of Cell Biology and Physiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michael Epperly
- Radiation Oncology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Ivet Bahar
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Anna A. Shvedova
- Exposure Assessment Branch/NIOSH/CDC, West Virginia University, Morgantown, West Virginia
- Department of Physiology and Pharmacology, West Virginia University, Morgantown, West Virginia
| | - Bruce Pitt
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sally E. Wenzel
- Department of Medicine, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Asthma Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Rama K. Mallampalli
- Department of Medicine, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yoel Sadovsky
- Magee Women's Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | | | - Hülya Bayır
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Valerian E. Kagan
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
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12
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Modulation of the inflammatory response of immune cells in human peripheral blood by oxidized arachidonoyl aminophospholipids. Arch Biochem Biophys 2018; 660:64-71. [PMID: 30315768 DOI: 10.1016/j.abb.2018.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/18/2018] [Accepted: 10/09/2018] [Indexed: 01/06/2023]
Abstract
Aminophospholipids (APL), phosphatidylethanolamine (PE) and phosphatidylserine (PS), can be oxidized upon oxidative stress. Oxidized PE and PS have been detected in clinical samples of different pathologies and may act as modulators of the inflammatory response. However, few studies have focused on the effects of oxidized APL (ox-APL) esterified with arachidonic acid, even though a considerable number of studies have assessed the modulation of the immune system by oxidized 1-palmitoyl-2-arachidonoyl-sn-3-glycerophosphocholine (OxPAPC). In the present study, we have used flow cytometry to evaluate the ability of oxidized PAPE (OxPAPE) and PAPS (OxPAPS) to promote or suppress an inflammatory phenotype on monocytes subsets and myeloid dendritic cells (mDCs). The results indicate that OxPAPE increases the frequency of all monocyte subpopulations expressing TNF-α, which promotes an inflammatory response. However, immune cell stimulation with OxPAPE in the presence of LPS results in a decrease of TNF-α expressed by classical monocytes. Incubation with OxPAPS and LPS induces a decrease in TNF-α produced by monocytes, and a significant decrease in IL-1β expressed by monocytes and mDCs, indicating that OxPAPS reduces the LPS-induced pro-inflammatory expression in these populations. These results show the importance of OxPAPE and OxPAPS as modulators of the inflammatory response and demonstrate their possible contribution to the onset and resolution of human diseases related to oxidative stress and inflammation.
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13
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Higgins CB, Zhang Y, Mayer AL, Fujiwara H, Stothard AI, Graham MJ, Swarts BM, DeBosch BJ. Hepatocyte ALOXE3 is induced during adaptive fasting and enhances insulin sensitivity by activating hepatic PPARγ. JCI Insight 2018; 3:120794. [PMID: 30135298 PMCID: PMC6141168 DOI: 10.1172/jci.insight.120794] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 07/10/2018] [Indexed: 12/12/2022] Open
Abstract
The hepatic glucose fasting response is gaining traction as a therapeutic pathway to enhance hepatic and whole-host metabolism. However, the mechanisms underlying these metabolic effects remain unclear. Here, we demonstrate the epidermal-type lipoxygenase, eLOX3 (encoded by its gene, Aloxe3), is a potentially novel effector of the therapeutic fasting response. We show that Aloxe3 is activated during fasting, glucose withdrawal, or trehalose/trehalose analogue treatment. Hepatocyte-specific Aloxe3 expression reduced weight gain and hepatic steatosis in diet-induced and genetically obese (db/db) mouse models. Aloxe3 expression, moreover, enhanced basal thermogenesis and abrogated insulin resistance in db/db diabetic mice. Targeted metabolomics demonstrated accumulation of the PPARγ ligand 12-KETE in hepatocytes overexpressing Aloxe3. Strikingly, PPARγ inhibition reversed hepatic Aloxe3–mediated insulin sensitization, suppression of hepatocellular ATP production and oxygen consumption, and gene induction of PPARγ coactivator-1α (PGC1α) expression. Moreover, hepatocyte-specific PPARγ deletion reversed the therapeutic effect of hepatic Aloxe3 expression on diet-induced insulin intolerance. Aloxe3 is, therefore, a potentially novel effector of the hepatocellular fasting response that leverages both PPARγ-mediated and pleiotropic effects to augment hepatic and whole-host metabolism, and it is, thus, a promising target to ameliorate metabolic disease. The lipoxygenase ALOXE3 is an effector of the hepatic fasting response that improves insulin sensitivity by activating hepatic PPARγ.
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Affiliation(s)
| | | | | | - Hideji Fujiwara
- Department of Medicine, Diabetic Cardiovascular Disease Center, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Alicyn I Stothard
- Department of Chemistry & Biochemistry, Central Michigan University, Mt. Pleasant, Michigan, USA
| | | | - Benjamin M Swarts
- Department of Chemistry & Biochemistry, Central Michigan University, Mt. Pleasant, Michigan, USA
| | - Brian J DeBosch
- Department of Pediatrics and.,Department of Cell Biology & Physiology, Washington University School of Medicine, St. Louis, Missouri, USA
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14
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Colombo S, Melo T, Martínez-López M, Carrasco MJ, Domingues MR, Pérez-Sala D, Domingues P. Phospholipidome of endothelial cells shows a different adaptation response upon oxidative, glycative and lipoxidative stress. Sci Rep 2018; 8:12365. [PMID: 30120318 PMCID: PMC6097988 DOI: 10.1038/s41598-018-30695-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/23/2018] [Indexed: 01/05/2023] Open
Abstract
Endothelial dysfunction has been widely associated with oxidative stress, glucotoxicity and lipotoxicity and underlies the development of cardiovascular diseases (CVDs), atherosclerosis and diabetes. In such pathological conditions, lipids are emerging as mediators of signalling pathways evoking key cellular responses as expression of proinflammatory genes, proliferation and apoptosis. Hence, the assessment of lipid profiles in endothelial cells (EC) can provide valuable information on the molecular alterations underlying CVDs, atherosclerosis and diabetes. We performed a lipidomic approach based on hydrophilic interaction liquid chromatography-tandem mass spectrometry (HILIC-MS/MS) for the analysis of the phospholipidome of bovine aortic EC (BAEC) exposed to oxidative (H2O2), glycative (glucose), or lipoxidative (4-hydroxynonenal, HNE) stress. The phospholipid (PL) profile was evaluated for the classes PC, PE, PS, PG, PI, SM, LPC and CL. H2O2 induced a more acute adaptation of the PL profile than glucose or HNE. Unsaturated PL molecular species were up-regulated after 24 h incubation with H2O2, while an opposite trend was observed in glucose- and HNE-treated cells. This study compared, for the first time, the adaptation of the phospholipidome of BAEC upon different induced biochemical stresses. Although further biological studies will be necessary, our results unveil specific lipid signatures in response to characteristic types of stress.
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Affiliation(s)
- Simone Colombo
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Tânia Melo
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Marta Martínez-López
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro, de Maeztu, 9, 28040, Madrid, Spain
| | - M Jesús Carrasco
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro, de Maeztu, 9, 28040, Madrid, Spain
| | - M Rosário Domingues
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Dolores Pérez-Sala
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro, de Maeztu, 9, 28040, Madrid, Spain
| | - Pedro Domingues
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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15
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O'Donnell VB, Rossjohn J, Wakelam MJ. Phospholipid signaling in innate immune cells. J Clin Invest 2018; 128:2670-2679. [PMID: 29683435 DOI: 10.1172/jci97944] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Phospholipids comprise a large body of lipids that define cells and organelles by forming membrane structures. Importantly, their complex metabolism represents a highly controlled cellular signaling network that is essential for mounting an effective innate immune response. Phospholipids in innate cells are subject to dynamic regulation by enzymes, whose activities are highly responsive to activation status. Along with their metabolic products, they regulate multiple aspects of innate immune cell biology, including shape change, aggregation, blood clotting, and degranulation. Phospholipid hydrolysis provides substrates for cell-cell communication, enables regulation of hemostasis, immunity, thrombosis, and vascular inflammation, and is centrally important in cardiovascular disease and associated comorbidities. Phospholipids themselves are also recognized by innate-like T cells, which are considered essential for recognition of infection or cancer, as well as self-antigens. This Review describes the major phospholipid metabolic pathways present in innate immune cells and summarizes the formation and metabolism of phospholipids as well as their emerging roles in cell biology and disease.
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Affiliation(s)
- Valerie B O'Donnell
- Systems Immunity Research Institute and Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Jamie Rossjohn
- Systems Immunity Research Institute and Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom.,Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, and.,ARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia
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16
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Slatter DA, Percy CL, Allen-Redpath K, Gajsiewicz JM, Brooks NJ, Clayton A, Tyrrell VJ, Rosas M, Lauder SN, Watson A, Dul M, Garcia-Diaz Y, Aldrovandi M, Heurich M, Hall J, Morrissey JH, Lacroix-Desmazes S, Delignat S, Jenkins PV, Collins PW, O'Donnell VB. Enzymatically oxidized phospholipids restore thrombin generation in coagulation factor deficiencies. JCI Insight 2018; 3:98459. [PMID: 29563336 PMCID: PMC5926910 DOI: 10.1172/jci.insight.98459] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 02/16/2018] [Indexed: 12/11/2022] Open
Abstract
Hemostatic defects are treated using coagulation factors; however, clot formation also requires a procoagulant phospholipid (PL) surface. Here, we show that innate immune cell–derived enzymatically oxidized phospholipids (eoxPL) termed hydroxyeicosatetraenoic acid–phospholipids (HETE-PLs) restore hemostasis in human and murine conditions of pathological bleeding. HETE-PLs abolished blood loss in murine hemophilia A and enhanced coagulation in factor VIII- (FVIII-), FIX-, and FX-deficient human plasma . HETE-PLs were decreased in platelets from patients after cardiopulmonary bypass (CPB). To explore molecular mechanisms, the ability of eoxPL to stimulate individual isolated coagulation factor/cofactor complexes was tested in vitro. Extrinsic tenase (FVIIa/tissue factor [TF]), intrinsic tenase (FVIIIa/FIXa), and prothrombinase (FVa/FXa) all were enhanced by both HETE-PEs and HETE-PCs, suggesting a common mechanism involving the fatty acid moiety. In plasma, 9-, 15-, and 12-HETE-PLs were more effective than 5-, 11-, or 8-HETE-PLs, indicating positional isomer specificity. Coagulation was enhanced at lower lipid/factor ratios, consistent with a more concentrated area for protein binding. Surface plasmon resonance confirmed binding of FII and FX to HETE-PEs. HETE-PEs increased membrane curvature and thickness, but not surface charge or homogeneity, possibly suggesting increased accessibility to cations/factors. In summary, innate immune-derived eoxPL enhance calcium-dependent coagulation factor function, and their potential utility in bleeding disorders is proposed. Innate immune-derived enzymatically oxidized phospholipids enhance calcium-dependent coagulation factor function.
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Affiliation(s)
- David A Slatter
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Charles L Percy
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Keith Allen-Redpath
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Joshua M Gajsiewicz
- Departments of Biological Chemistry and Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Nick J Brooks
- Faculty of Natural Science, Department of Chemistry, Imperial College London, London, United Kingdom
| | - Aled Clayton
- Institute of Cancer and Genetics, Velindre Cancer Centre, School of Medicine, and
| | - Victoria J Tyrrell
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Marcela Rosas
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Sarah N Lauder
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Andrew Watson
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Maria Dul
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, United Kingdom
| | - Yoel Garcia-Diaz
- School of Chemistry, Vanderbilt University, Nashville, Tennessee, USA
| | - Maceler Aldrovandi
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Meike Heurich
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Judith Hall
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - James H Morrissey
- Departments of Biological Chemistry and Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | | | | | - P Vincent Jenkins
- Haematology Department, University Hospital of Wales, Cardiff, United Kingdom
| | - Peter W Collins
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Valerie B O'Donnell
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
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17
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Colombo S, Coliva G, Kraj A, Chervet JP, Fedorova M, Domingues P, Domingues MR. Electrochemical oxidation of phosphatidylethanolamines studied by mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:223-233. [PMID: 29282829 DOI: 10.1002/jms.4056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/29/2017] [Accepted: 12/18/2017] [Indexed: 06/07/2023]
Affiliation(s)
- Simone Colombo
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Giulia Coliva
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Universität Leipzig, Leipzig, Germany
- Center for Biotechnology and Biomedicine, Universität Leipzig, Leipzig, Germany
| | | | | | - Maria Fedorova
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Universität Leipzig, Leipzig, Germany
- Center for Biotechnology and Biomedicine, Universität Leipzig, Leipzig, Germany
| | - Pedro Domingues
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - M Rosário Domingues
- Mass Spectrometry Centre, Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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18
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Lauder SN, Allen-Redpath K, Slatter DA, Aldrovandi M, O'Connor A, Farewell D, Percy CL, Molhoek JE, Rannikko S, Tyrrell VJ, Ferla S, Milne GL, Poole AW, Thomas CP, Obaji S, Taylor PR, Jones SA, de Groot PG, Urbanus RT, Hörkkö S, Uderhardt S, Ackermann J, Vince Jenkins P, Brancale A, Krönke G, Collins PW, O'Donnell VB. Networks of enzymatically oxidized membrane lipids support calcium-dependent coagulation factor binding to maintain hemostasis. Sci Signal 2017; 10:10/507/eaan2787. [PMID: 29184033 DOI: 10.1126/scisignal.aan2787] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Blood coagulation functions as part of the innate immune system by preventing bacterial invasion, and it is critical to stopping blood loss (hemostasis). Coagulation involves the external membrane surface of activated platelets and leukocytes. Using lipidomic, genetic, biochemical, and mathematical modeling approaches, we found that enzymatically oxidized phospholipids (eoxPLs) generated by the activity of leukocyte or platelet lipoxygenases (LOXs) were required for normal hemostasis and promoted coagulation factor activities in a Ca2+- and phosphatidylserine (PS)-dependent manner. In wild-type mice, hydroxyeicosatetraenoic acid-phospholipids (HETE-PLs) enhanced coagulation and restored normal hemostasis in clotting-deficient animals genetically lacking p12-LOX or 12/15-LOX activity. Murine platelets generated 22 eoxPL species, all of which were missing in the absence of p12-LOX. Humans with the thrombotic disorder antiphospholipid syndrome (APS) had statistically significantly increased HETE-PLs in platelets and leukocytes, as well as greater HETE-PL immunoreactivity, than healthy controls. HETE-PLs enhanced membrane binding of the serum protein β2GP1 (β2-glycoprotein 1), an event considered central to the autoimmune reactivity responsible for APS symptoms. Correlation network analysis of 47 platelet eoxPL species in platelets from APS and control subjects identified their enzymatic origin and revealed a complex network of regulation, with the abundance of 31 p12-LOX-derived eoxPL molecules substantially increased in APS. In summary, circulating blood cells generate networks of eoxPL molecules, including HETE-PLs, which change membrane properties to enhance blood coagulation and contribute to the excessive clotting and immunoreactivity of patients with APS.
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Affiliation(s)
- Sarah N Lauder
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Keith Allen-Redpath
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - David A Slatter
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Maceler Aldrovandi
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Anne O'Connor
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Daniel Farewell
- Division of Population Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Charles L Percy
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Jessica E Molhoek
- Department of Clinical Chemistry and Haematology, University of Utrecht, University Medical Center Utrecht, Utrecht 3584 CX, Netherlands
| | - Sirpa Rannikko
- Department of Medical Microbiology and Immunology, Research Unit of Biomedicine, Finland and Medical Research Center, University of Oulu, P.O. Box 5000, Oulu 90220, Finland.,Nordlab Oulu, University Hospital, Oulu 90220, Finland
| | - Victoria J Tyrrell
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Salvatore Ferla
- Welsh School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff CF14 4XN, UK
| | - Ginger L Milne
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37240, USA
| | - Alastair W Poole
- School of Physiology, Pharmacy and Neuroscience, Medical Sciences Building, University Walk, Bristol BS8 1TD, UK
| | - Christopher P Thomas
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK.,Welsh School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff CF14 4XN, UK
| | - Samya Obaji
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Philip R Taylor
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Simon A Jones
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Phillip G de Groot
- Department of Clinical Chemistry and Haematology, University of Utrecht, University Medical Center Utrecht, Utrecht 3584 CX, Netherlands
| | - Rolf T Urbanus
- Department of Clinical Chemistry and Haematology, University of Utrecht, University Medical Center Utrecht, Utrecht 3584 CX, Netherlands
| | - Sohvi Hörkkö
- Department of Medical Microbiology and Immunology, Research Unit of Biomedicine, Finland and Medical Research Center, University of Oulu, P.O. Box 5000, Oulu 90220, Finland.,Nordlab Oulu, University Hospital, Oulu 90220, Finland
| | - Stefan Uderhardt
- Department of Internal Medicine and Institute for Clinical Immunology, University Hospital Erlangen, Erlangen, Germany
| | - Jochen Ackermann
- Department of Internal Medicine and Institute for Clinical Immunology, University Hospital Erlangen, Erlangen, Germany
| | - P Vince Jenkins
- Institute of Molecular Medicine, St James's Hospital, Dublin, Ireland
| | - Andrea Brancale
- Welsh School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff CF14 4XN, UK
| | - Gerhard Krönke
- Department of Internal Medicine and Institute for Clinical Immunology, University Hospital Erlangen, Erlangen, Germany
| | - Peter W Collins
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK. .,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
| | - Valerie B O'Donnell
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff CF14 4XN, UK. .,Division of Infection and Immunity, Cardiff University, Cardiff CF14 4XN, UK
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19
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Reis A. Oxidative Phospholipidomics in health and disease: Achievements, challenges and hopes. Free Radic Biol Med 2017; 111:25-37. [PMID: 28088624 DOI: 10.1016/j.freeradbiomed.2017.01.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 01/09/2017] [Accepted: 01/09/2017] [Indexed: 12/14/2022]
Abstract
Phospholipid peroxidation products are recognized as important bioactive lipid mediators playing an active role as modulators in signalling events in inflammation, immunity and infection. The biochemical responses are determined by the oxidation structural features present in oxPL modulating biophysical and biological properties in model membranes and lipoproteins. In spite of the extensive work conducted with model systems over the last 20 years, the study of oxPL in biological systems has virtually stagnated. In fact, very little is known concerning the predominant oxPL in fluids and tissues, their basal levels, and any variations introduced with age, gender and ethnicity in health and disease. In consequence, knowledge on oxPL has not yet translated into clinical diagnostic, in the early and timely diagnosis of "silent" diseases such as atherosclerosis and cardiovascular diseases, or as prognosis tools in disease stratification and particularly useful in the context of multimorbidities. Their use as therapeutic solutions or the development of innovative functional biomaterials remains to be explored. This review summarizes the achievements made in the identification of oxPL revealing an enormous structural diversity. A brief overview of the challenges associated with the analysis of such diverse array of products is given and a critical evaluation on key aspects in the analysis pipeline that need to be addressed. Once these issues are addressed, Oxidative Phospholipidomics will hopefully lead to major breakthrough discoveries in biochemistry, pharmaceutical, and clinical areas for the upcoming 20 years. This article is part of Special Issue entitled 4-Hydroxynonenal and Related Lipid Oxidation Products.
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Affiliation(s)
- Ana Reis
- Mass Spectrometry Centre, Department of Chemistry, Campus Santiago, University of Aveiro, Aveiro, Portugal.
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20
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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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21
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Fessler MB, Summer RS. Surfactant Lipids at the Host-Environment Interface. Metabolic Sensors, Suppressors, and Effectors of Inflammatory Lung Disease. Am J Respir Cell Mol Biol 2017; 54:624-35. [PMID: 26859434 DOI: 10.1165/rcmb.2016-0011ps] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The lipid composition of pulmonary surfactant is unlike that of any other body fluid. This extracellular lipid reservoir is also uniquely susceptible by virtue of its direct and continuous exposure to environmental oxidants, inflammatory agents, and pathogens. Historically, the greatest attention has been focused on those biophysical features of surfactant that serve to reduce surface tension at the air-liquid interface. More recently, surfactant lipids have also been recognized as bioactive molecules that maintain immune quiescence in the lung but can also be remodeled by the inhaled environment into neolipids that mediate key roles in inflammation, immunity, and fibrosis. This review focuses on the roles in inflammatory and infectious lung disease of two classes of native surfactant lipids, glycerophospholipids and sterols, and their corresponding oxidized species, oxidized glycerophospholipids and oxysterols. We highlight evidence that surfactant composition is sensitive to circulating lipoproteins and that the lipid milieu of the alveolus should thus be recognized as susceptible to diet and common systemic metabolic disorders. We also discuss intriguing evidence suggesting that oxidized surfactant lipids may represent an evolutionary link between immunity and tissue homeostasis that arose in the primordial lung. Taken together, the emerging picture is one in which the unique environmental susceptibility of the lung, together with its unique extracellular lipid requirements, may have made this organ both an evolutionary hub and an engine for lipid-immune cross-talk.
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Affiliation(s)
- Michael B Fessler
- 1 Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina; and
| | - Ross S Summer
- 2 Center for Translational Medicine and Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania
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22
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Mesaros C, Arroyo AD, Blair IA, Snyder NW. Coenzyme A thioester formation of 11- and 15-oxo-eicosatetraenoic acid. Prostaglandins Other Lipid Mediat 2017; 130:1-7. [PMID: 28238887 PMCID: PMC5446925 DOI: 10.1016/j.prostaglandins.2017.02.004] [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: 09/26/2016] [Revised: 01/26/2017] [Accepted: 02/10/2017] [Indexed: 10/20/2022]
Abstract
Release of arachidonic acid (AA) by cytoplasmic phospholipase A2 (cPLA2), followed by metabolism through cyclooxygenase-2 (COX-2) and 15-hydroxyprostaglandin dehydrogenase (15-PGDH), results in the formation of the eicosanoids 11-oxo- and 15-oxo-eicosatetraenoic acid (oxo-ETE). Both 11-oxo- and 15-oxo-ETE have been identified in human biospecimens but their function and further metabolism is poorly described. The oxo-ETEs contain an α,β-unsaturated ketone and a free carboxyclic acid, and thus may form Michael adducts with a nucleophile or a thioester with the free thiol of Coenzyme A (CoA). To examine the potential for eicosanoid-CoA formation, which has not previously been a metabolic route examined for this class of lipids, we applied a semi-targeted neutral loss scanning approach following arachidonic acid treatment in cell culture and detected inducible long-chain acyl-CoAs including a predominant AA-CoA peak. Interestingly, a series of AA-inducible acyl-CoAs at lower abundance but higher mass, likely corresponding to eicosanoid metabolites, was detected. Using a targeted LC-MS/MS approach we detected the formation of CoA thioesters of both 11-oxo- and 15-oxo-ETE and monitored the kinetics of their formation. Subsequently, we demonstrated that these acyl-CoA species undergo up to four double bond reductions. We confirmed the generation of 15-oxo-ETE-CoA in human platelets via LC-high resolution MS. Acyl-CoA thioesters of eicosanoids may provide a route to generate reducing equivalents, substrates for fatty acid oxidation, and substrates for acyl-transferases through cPLA2-dependent eicosanoid metabolism outside of the signaling contexts traditionally ascribed to eicosanoid metabolites.
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Affiliation(s)
- Clementina Mesaros
- Penn SRP and Center for Excellence in Environmental Toxicology, Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Alejandro D Arroyo
- Penn SRP and Center for Excellence in Environmental Toxicology, Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Ian A Blair
- Penn SRP and Center for Excellence in Environmental Toxicology, Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Nathaniel W Snyder
- A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA 19104, United States.
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Doll S, Conrad M. Iron and ferroptosis: A still ill-defined liaison. IUBMB Life 2017; 69:423-434. [PMID: 28276141 DOI: 10.1002/iub.1616] [Citation(s) in RCA: 299] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 02/13/2017] [Indexed: 12/16/2022]
Abstract
Ferroptosis is a recently described form of regulated necrotic cell death, which appears to contribute to a number of diseases, such as tissue ischemia/reperfusion injury, acute renal failure, and neurodegeneration. A hallmark of ferroptosis is iron-dependent lipid peroxidation, which can be inhibited by the key ferroptosis regulator glutathione peroxidase 4(Gpx4), radical trapping antioxidants and ferroptosis-specific inhibitors, such as ferrostatins and liproxstatins, as well as iron chelation. Although great strides have been made towards a better understanding of the proximate signals of distinctive lipid peroxides in ferroptosis, still little is known about the mechanistic implication of iron in the ferroptotic process. Hence, this review aims at summarizing recent advances in our understanding to what is known about enzymatic and nonenzymatic routes of lipid peroxidation, the involvement of iron in this process and the identification of novel players in ferroptotic cell death. Additionally, we review early works carried out long time before the term "ferroptosis" was actually introduced but which were instrumental in a better understanding of the role of ferroptosis in physiological and pathophysiological contexts. © 2017 IUBMB Life, 69(6):423-434, 2017.
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Affiliation(s)
- Sebastian Doll
- Helmholtz Zentrum München, Institute of Developmental Genetics, Neuherberg, Germany
| | - Marcus Conrad
- Helmholtz Zentrum München, Institute of Developmental Genetics, Neuherberg, Germany
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O'Donnell VB, Murphy RC. Directing eicosanoid esterification into phospholipids. J Lipid Res 2017; 58:837-839. [PMID: 28242788 DOI: 10.1194/jlr.c075986] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Valerie B O'Donnell
- Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CV14 4XN, UK
| | - Robert C Murphy
- Department of Pharmacology, University of Colorado Denver, Aurora, CO
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Chlorinated Phospholipids and Fatty Acids: (Patho)physiological Relevance, Potential Toxicity, and Analysis of Lipid Chlorohydrins. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:8386362. [PMID: 28090245 PMCID: PMC5206476 DOI: 10.1155/2016/8386362] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/24/2016] [Accepted: 11/06/2016] [Indexed: 12/17/2022]
Abstract
Chlorinated phospholipids are formed by the reaction of hypochlorous acid (HOCl), generated by the enzyme myeloperoxidase under inflammatory conditions, and the unsaturated fatty acyl residues or the head group. In the first case the generated chlorohydrins are both proinflammatory and cytotoxic, thus having a significant impact on the structures of biomembranes. The latter case leads to chloramines, the properties of which are by far less well understood. Since HOCl is also widely used as a disinfecting and antibacterial agent in medicinal, industrial, and domestic applications, it may represent an additional source of danger in the case of abuse or mishandling. This review discusses the reaction behavior of in vivo generated HOCl and biomolecules like DNA, proteins, and carbohydrates but will focus on phospholipids. Not only the beneficial and pathological (toxic) effects of chlorinated lipids but also the importance of these chlorinated species is discussed. Some selected cleavage products of (chlorinated) phospholipids and plasmalogens such as lysophospholipids, (chlorinated) free fatty acids and α-chloro fatty aldehydes, which are all well known to massively contribute to inflammatory diseases associated with oxidative stress, will be also discussed. Finally, common analytical methods to study these compounds will be reviewed with focus on mass spectrometric techniques.
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26
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The impact of impaired macrophage functions in cystic fibrosis disease progression. J Cyst Fibros 2016; 16:443-453. [PMID: 27856165 DOI: 10.1016/j.jcf.2016.10.011] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/21/2016] [Accepted: 10/23/2016] [Indexed: 01/29/2023]
Abstract
The underlying cause of morbidity in cystic fibrosis (CF) is the decline in lung function, which results in part from chronic inflammation. Inflammation and infection occur early in infancy in CF and the role of innate immune defense in CF has been highlighted in the last years. Once thought simply to be consumers of bacteria, macrophages have emerged as highly sensitive immune cells that are located at the balance point between inflammation and resolution of this inflammation in CF pathophysiology. In order to assess the potential role of macrophage in CF, we review the evidence that: (1) CF macrophage has a dysregulated inflammatory phenotype; (2) CF macrophage presents altered phagocytosis capacity and bacterial killing; and (3) lipid disorders in CF macrophage affect its function. These alterations of macrophage weaken innate defense of CF patients and may be involved in CF disease progression and lung damage.
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27
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Hormetic and anti-inflammatory properties of oxidized phospholipids. Mol Aspects Med 2016; 49:78-90. [DOI: 10.1016/j.mam.2016.02.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/04/2016] [Accepted: 02/04/2016] [Indexed: 12/15/2022]
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The role of mid-chain hydroxyeicosatetraenoic acids in the pathogenesis of hypertension and cardiac hypertrophy. Arch Toxicol 2015; 90:119-36. [PMID: 26525395 DOI: 10.1007/s00204-015-1620-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 10/19/2015] [Indexed: 12/16/2022]
Abstract
The incidence, prevalence, and hospitalization rates associated with cardiovascular diseases (CVDs) are projected to increase substantially in the world. Understanding of the biological and pathophysiological mechanisms of survival can help the researchers to develop new management modalities. Numerous experimental studies have demonstrated that mid-chain HETEs are strongly involved in the pathogenesis of the CVDs. Mid-chain HETEs are biologically active eicosanoids that result from the metabolism of arachidonic acid (AA) by both lipoxygenase and CYP1B1 (lipoxygenase-like reaction). Therefore, identifying the localizations and expressions of the lipoxygenase and CYP1B1 and their associated AA metabolites in the cardiovascular system is of major importance in understanding their pathological roles. Generally, the expression of these enzymes is shown to be induced during several CVDs, including hypertension and cardiac hypertrophy. The induction of these enzymes is associated with the generation of mid-chain HETEs and subsequently causation of cardiovascular events. Of interest, inhibiting the formation of mid-chain HETEs has been reported to confer a protection against different cardiac hypertrophy and hypertension models such as angiotensin II, Goldblatt, spontaneously hypertensive rat and deoxycorticosterone acetate (DOCA)-salt-induced models. Although the exact mechanisms of mid-chain HETEs-mediated cardiovascular dysfunction are not fully understood, the present review proposes several mechanisms which include activating G-protein-coupled receptor, protein kinase C, mitogen-activated protein kinases, and nuclear factor kappa B. This review provides a clear understanding of the role of mid-chain HETEs in the pathogenesis of cardiovascular diseases and their importance as novel targets in the treatment for hypertension and cardiac hypertrophy.
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Abrial C, Grassin-Delyle S, Salvator H, Brollo M, Naline E, Devillier P. 15-Lipoxygenases regulate the production of chemokines in human lung macrophages. Br J Pharmacol 2015; 172:4319-30. [PMID: 26040494 DOI: 10.1111/bph.13210] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 04/01/2015] [Accepted: 05/27/2015] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND PURPOSE 15-Lipoxygenase (15-LOX) activity is associated with inflammation and immune regulation. The objectives of the present study were to investigate the expression of 15-LOX-1 and 15-LOX-2 and evaluate the enzymes' roles in the polarization of human lung macrophages (LMs) in response to LPS and Th2 cytokines (IL-4/-13). EXPERIMENTAL APPROACH LMs were isolated from patients undergoing surgery for carcinoma. The cells were cultured with a 15-LOX inhibitor (PD146176 or ML351), a COX inhibitor (indomethacin), a 5-LOX inhibitor (MK886) or vehicle and then stimulated with LPS (10 ng · mL(-1)), IL-4 (10 ng · mL(-1)) or IL-13 (50 ng · mL(-1)) for 24 h. Levels of ALOX15 (15-LOX-1) and ALOX15B (15-LOX-2) transcripts were determined by real-time quantitative PCR. Immunoassays were used to measure levels of LPS-induced cytokines (TNF-α, CCL2, CCL3, CCL4, CXCL1, CXCL8 and CXCL10) and Th2 cytokine-induced chemokines (CCL13, CCL18 and CCL22) in the culture supernatant. KEY RESULTS Stimulation of LMs with LPS was associated with increased expression of ALOX15B, whereas stimulation with IL-4/IL-13 induced the expression of ALOX15. PD146176 and ML351 (10 μM) reduced the release of the chemokines induced by LPS and Th2 cytokines. The effects of these 15-LOX inhibitors were maintained in the presence of indomethacin and MK886. Furthermore, indomethacin revealed the inhibitory effect of PD146176 on TNF-α release. CONCLUSIONS AND IMPLICATIONS Inhibition of the 15-LOX pathways is involved in the down-regulation of the in vitro production of chemokines in LMs. Our results suggest that the 15-LOX pathways have a role in the pathogenesis of inflammatory lung disorders and may thus constitute a potential drug target.
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Affiliation(s)
- C Abrial
- Laboratoire de Pharmacologie UPRES EA220, Hôpital Foch, Suresnes, France.,UFR Sciences de la santé, Université Versailles Saint Quentin, Saint Quentin en Yvelines, France
| | - S Grassin-Delyle
- Laboratoire de Pharmacologie UPRES EA220, Hôpital Foch, Suresnes, France.,UFR Sciences de la santé, Université Versailles Saint Quentin, Saint Quentin en Yvelines, France
| | - H Salvator
- Laboratoire de Pharmacologie UPRES EA220, Hôpital Foch, Suresnes, France.,UFR Sciences de la santé, Université Versailles Saint Quentin, Saint Quentin en Yvelines, France
| | - M Brollo
- Laboratoire de Pharmacologie UPRES EA220, Hôpital Foch, Suresnes, France
| | - E Naline
- Laboratoire de Pharmacologie UPRES EA220, Hôpital Foch, Suresnes, France.,UFR Sciences de la santé, Université Versailles Saint Quentin, Saint Quentin en Yvelines, France
| | - P Devillier
- Laboratoire de Pharmacologie UPRES EA220, Hôpital Foch, Suresnes, France.,UFR Sciences de la santé, Université Versailles Saint Quentin, Saint Quentin en Yvelines, France
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30
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Kagan VE, Tyurina YY, Tyurin VA, Mohammadyani D, Angeli JPF, Baranov SV, Klein-Seetharaman J, Friedlander RM, Mallampalli RK, Conrad M, Bayir H. Cardiolipin signaling mechanisms: collapse of asymmetry and oxidation. Antioxid Redox Signal 2015; 22:1667-80. [PMID: 25566681 PMCID: PMC4486147 DOI: 10.1089/ars.2014.6219] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
SIGNIFICANCE An ancient anionic phospholipid, cardiolipin (CL), ubiquitously present in prokaryotic and eukaryotic membranes, is essential for several structural and functional purposes. RECENT ADVANCES The emerging role of CLs in signaling has become the focus of many studies. CRITICAL ISSUES In this work, we describe two major pathways through which mitochondrial CLs may fulfill the signaling functions via utilization of their (i) asymmetric distribution across membranes and translocations, leading to the surface externalization and (ii) ability to undergo oxidation reactions to yield the signature products recognizable by the executionary machinery of cells. FUTURE DIRECTIONS We present a concept that CLs and their oxidation/hydrolysis products constitute a rich communication language utilized by mitochondria of eukaryotic cells for diversified regulation of cell physiology and metabolism as well as for inter-cellular interactions.
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Affiliation(s)
- Valerian E Kagan
- 1Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania.,2Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania.,3Department of Radiation Oncology, University of Pittsburgh, Pittsburgh, Pennsylvania.,4Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yulia Y Tyurina
- 1Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Vladimir A Tyurin
- 1Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Dariush Mohammadyani
- 5Department of Bioengineering, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jose Pedro Friedmann Angeli
- 6Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Sergei V Baranov
- 7Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Judith Klein-Seetharaman
- 8Division of Metabolic and Vascular Health, Medical School, University of Warwick, Coventry, United Kingdom
| | | | - Rama K Mallampalli
- 9Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, and VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania
| | - Marcus Conrad
- 6Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Hülya Bayir
- 10Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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Spickett CM, Pitt AR. Oxidative lipidomics coming of age: advances in analysis of oxidized phospholipids in physiology and pathology. Antioxid Redox Signal 2015; 22:1646-66. [PMID: 25694038 PMCID: PMC4486145 DOI: 10.1089/ars.2014.6098] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
SIGNIFICANCE Oxidized phospholipids are now well recognized as markers of biological oxidative stress and bioactive molecules with both pro-inflammatory and anti-inflammatory effects. While analytical methods continue to be developed for studies of generic lipid oxidation, mass spectrometry (MS) has underpinned the advances in knowledge of specific oxidized phospholipids by allowing their identification and characterization, and it is responsible for the expansion of oxidative lipidomics. RECENT ADVANCES Studies of oxidized phospholipids in biological samples, from both animal models and clinical samples, have been facilitated by the recent improvements in MS, especially targeted routines that depend on the fragmentation pattern of the parent molecular ion and improved resolution and mass accuracy. MS can be used to identify selectively individual compounds or groups of compounds with common features, which greatly improves the sensitivity and specificity of detection. Application of these methods has enabled important advances in understanding the mechanisms of inflammatory diseases such as atherosclerosis, steatohepatitis, leprosy, and cystic fibrosis, and it offers potential for developing biomarkers of molecular aspects of the diseases. CRITICAL ISSUES AND FUTURE DIRECTIONS The future in this field will depend on development of improved MS technologies, such as ion mobility, novel enrichment methods and databases, and software for data analysis, owing to the very large amount of data generated in these experiments. Imaging of oxidized phospholipids in tissue MS is an additional exciting direction emerging that can be expected to advance understanding of physiology and disease.
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Affiliation(s)
- Corinne M. Spickett
- School of Life & Health Sciences, Aston University, Birmingham, United Kingdom
| | - Andrew R. Pitt
- School of Life & Health Sciences, Aston University, Birmingham, United Kingdom
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32
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Manček-Keber M, Frank-Bertoncelj M, Hafner-Bratkovič I, Smole A, Zorko M, Pirher N, Hayer S, Kralj-Iglič V, Rozman B, Ilc N, Horvat S, Jerala R. Toll-like receptor 4 senses oxidative stress mediated by the oxidation of phospholipids in extracellular vesicles. Sci Signal 2015; 8:ra60. [PMID: 26082436 DOI: 10.1126/scisignal.2005860] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Oxidative stress produced in response to infection or sterile injury activates the innate immune response. We found that extracellular vesicles (EVs) isolated from the plasma of patients with rheumatoid arthritis or secreted from cells subjected to oxidative stress contained oxidized phospholipids that stimulated cells expressing Toll-like receptor 4 (TLR4) in a manner dependent on its co-receptor MD-2. EVs from healthy subjects or reconstituted synthetic EVs subjected to limited oxidation gained the ability to stimulate TLR4-expressing cells, whereas prolonged oxidation abrogated this property. Furthermore, we found that 15-lipoxygenase generated hydro(pero)xylated phospholipids that stimulated TLR4-expressing cells. Molecular modeling suggested that the mechanism of activation of TLR4 by oxidized phospholipids in EVs was structurally similar to that of the TLR4 ligand lipopolysaccharide (LPS). This was supported by experiments showing that EV-mediated stimulation of cells required MD-2, that mutations that block LPS binding to TLR4 abrogated the stimulatory effect of EVs, and that EVs induced TLR4 dimerization. On the other hand, analysis of gene expression profiles showed that genes encoding factors that resolve inflammation were more abundantly expressed in responses to EVs than in response to LPS. Together, these data suggest that EVs act as an oxidative stress-induced endogenous danger signal that underlies the pervasive role of TLR4 in inflammatory diseases.
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Affiliation(s)
- Mateja Manček-Keber
- Department of Biotechnology, National Institute of Chemistry, 1000 Ljubljana, Slovenia. Excellent NMR Future Innovation for Sustainable Technologies, Centre of Excellence, 1000 Ljubljana, Slovenia.
| | - Mojca Frank-Bertoncelj
- Department of Rheumatology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
| | - Iva Hafner-Bratkovič
- Department of Biotechnology, National Institute of Chemistry, 1000 Ljubljana, Slovenia. Excellent NMR Future Innovation for Sustainable Technologies, Centre of Excellence, 1000 Ljubljana, Slovenia
| | - Anže Smole
- Department of Biotechnology, National Institute of Chemistry, 1000 Ljubljana, Slovenia
| | - Mateja Zorko
- Department of Biotechnology, National Institute of Chemistry, 1000 Ljubljana, Slovenia
| | - Nina Pirher
- Department of Biotechnology, National Institute of Chemistry, 1000 Ljubljana, Slovenia
| | - Silvia Hayer
- Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria
| | - Veronika Kralj-Iglič
- Laboratoryof Clinical Biophysics, Faculty of Health Sciences, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Blaž Rozman
- Department of Rheumatology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
| | - Nejc Ilc
- Faculty of Computer and Information Science, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Simon Horvat
- Department of Biotechnology, National Institute of Chemistry, 1000 Ljubljana, Slovenia. Department of Animal Science, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Roman Jerala
- Department of Biotechnology, National Institute of Chemistry, 1000 Ljubljana, Slovenia. Excellent NMR Future Innovation for Sustainable Technologies, Centre of Excellence, 1000 Ljubljana, Slovenia.
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Goto T, Kim YI, Furuzono T, Takahashi N, Yamakuni K, Yang HE, Li Y, Ohue R, Nomura W, Sugawara T, Yu R, Kitamura N, Park SB, Kishino S, Ogawa J, Kawada T. 10-oxo-12(Z)-octadecenoic acid, a linoleic acid metabolite produced by gut lactic acid bacteria, potently activates PPARγ and stimulates adipogenesis. Biochem Biophys Res Commun 2015; 459:597-603. [PMID: 25749343 DOI: 10.1016/j.bbrc.2015.02.154] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 02/25/2015] [Indexed: 10/23/2022]
Abstract
Our previous study has shown that gut lactic acid bacteria generate various kinds of fatty acids from polyunsaturated fatty acids such as linoleic acid (LA). In this study, we investigated the effects of LA and LA-derived fatty acids on the activation of peroxisome proliferator-activated receptors (PPARs) which regulate whole-body energy metabolism. None of the fatty acids activated PPARδ, whereas almost all activated PPARα in luciferase assays. Two fatty acids potently activated PPARγ, a master regulator of adipocyte differentiation, with 10-oxo-12(Z)-octadecenoic acid (KetoA) having the most potency. In 3T3-L1 cells, KetoA induced adipocyte differentiation via the activation of PPARγ, and increased adiponectin production and insulin-stimulated glucose uptake. These findings suggest that fatty acids, including KetoA, generated in gut by lactic acid bacteria may be involved in the regulation of host energy metabolism.
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Affiliation(s)
- Tsuyoshi Goto
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan; Research Unit for Physiological Chemistry, The Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Japan.
| | - Young-Il Kim
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan
| | - Tomoya Furuzono
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan
| | - Nobuyuki Takahashi
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan; Research Unit for Physiological Chemistry, The Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Japan
| | - Kanae Yamakuni
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan
| | - Ha-Eun Yang
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan
| | - Yongjia Li
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan
| | - Ryuji Ohue
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan; Research Unit for Physiological Chemistry, The Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Japan
| | - Wataru Nomura
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan
| | - Tatsuya Sugawara
- Laboratory of Marine Bioproducts Technology, Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Rina Yu
- Department of Food Science and Nutrition, University of Ulsan, Ulsan 680-749, South Korea
| | - Nahoko Kitamura
- Laboratory of Fermentation Physiology and Applied Microbiology, Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Si-Bum Park
- Laboratory of Industrial Microbiology, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Shigenobu Kishino
- Laboratory of Fermentation Physiology and Applied Microbiology, Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Jun Ogawa
- Research Unit for Physiological Chemistry, The Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Japan; Laboratory of Fermentation Physiology and Applied Microbiology, Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Teruo Kawada
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji 611-0011, Japan; Research Unit for Physiological Chemistry, The Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Japan
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Heshof R, de Graaff LH, Villaverde JJ, Silvestre AJ, Haarmann T, Dalsgaard TK, Buchert J. Industrial potential of lipoxygenases. Crit Rev Biotechnol 2015; 36:665-74. [DOI: 10.3109/07388551.2015.1004520] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ruud Heshof
- Laboratory of Systems and Synthetic Biology, Wageningen University, Wageningen, The Netherlands,
| | - Leo H. de Graaff
- Laboratory of Systems and Synthetic Biology, Wageningen University, Wageningen, The Netherlands,
| | - Juan J. Villaverde
- Department of Chemistry, CICECO, University of Aveiro, Aveiro, Portugal,
- On leave to INIA, DTEVPF, Plant Protection Products Unit, Ctra. de La Coruña, Madrid, Spain,
| | | | | | - Trine K. Dalsgaard
- Department of Food Sciences, Faculty of Science and Technology, Aarhus University, Tjele, Denmark, and
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35
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Morgan AH, Hammond VJ, Sakoh-Nakatogawa M, Ohsumi Y, Thomas CP, Blanchet F, Piguet V, Kiselyov K, O'Donnell VB. A novel role for 12/15-lipoxygenase in regulating autophagy. Redox Biol 2014; 4:40-7. [PMID: 25498966 PMCID: PMC4309860 DOI: 10.1016/j.redox.2014.11.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 11/07/2014] [Accepted: 11/11/2014] [Indexed: 11/28/2022] Open
Abstract
12/15-Lipoxygenase (LOX) enzymatically generates oxidized phospholipids in monocytes and macrophages. Herein, we show that cells deficient in 12/15-LOX contain defective mitochondria and numerous cytoplasmic vacuoles containing electron dense material, indicating defects in autophagy or membrane processing, However, both LC3 expression and lipidation were normal both basally and on chloroquine treatment. A LOX-derived oxidized phospholipid, 12-hydroxyeicosatetraenoic acid-phosphatidylethanolamine (12-HETE-PE) was found to be a preferred substrate for yeast Atg8 lipidation, versus native PE, while both native and oxidized PE were effective substrates for LC3 lipidation. Last, phospholipidomics demonstrated altered levels of several phospholipid classes. Thus, we show that oxidized phospholipids generated by 12/15-LOX can act as substrates for key proteins required for effective autophagy and that cells deficient in this enzyme show evidence of autophagic dysfunction. The data functionally link phospholipid oxidation with autophagy for the first time. 12/15-Lipoxygenase-deficient macrophages show evidence of autophagic dysfunction. 12-HETE-PE is a substrate for LC2 and Atg8 lipidation. Macrophages deficient in 12/15-lipoxygenase show altered phospholipid content.
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Affiliation(s)
- Alwena H Morgan
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Victoria J Hammond
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | | | - Yoshinori Ohsumi
- Frontier Research Center, Tokyo Institute of Technology, Nagatsuta 4259-S2-12, Yokohama, Japan
| | - Christopher P Thomas
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Fabien Blanchet
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Vincent Piguet
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Kirill Kiselyov
- Department of Biological Sciences, University of Pittsburgh, Langley Hall, 4249 Fifth Avenue, Pittsburgh, PA 15260, USA
| | - Valerie B O'Donnell
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK.
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36
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Powell WS, Rokach J. Biosynthesis, biological effects, and receptors of hydroxyeicosatetraenoic acids (HETEs) and oxoeicosatetraenoic acids (oxo-ETEs) derived from arachidonic acid. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1851:340-55. [PMID: 25449650 DOI: 10.1016/j.bbalip.2014.10.008] [Citation(s) in RCA: 218] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 10/10/2014] [Accepted: 10/21/2014] [Indexed: 12/14/2022]
Abstract
Arachidonic acid can be oxygenated by a variety of different enzymes, including lipoxygenases, cyclooxygenases, and cytochrome P450s, and can be converted to a complex mixture of oxygenated products as a result of lipid peroxidation. The initial products in these reactions are hydroperoxyeicosatetraenoic acids (HpETEs) and hydroxyeicosatetraenoic acids (HETEs). Oxoeicosatetraenoic acids (oxo-ETEs) can be formed by the actions of various dehydrogenases on HETEs or by dehydration of HpETEs. Although a large number of different HETEs and oxo-ETEs have been identified, this review will focus principally on 5-oxo-ETE, 5S-HETE, 12S-HETE, and 15S-HETE. Other related arachidonic acid metabolites will also be discussed in less detail. 5-Oxo-ETE is synthesized by oxidation of the 5-lipoxygenase product 5S-HETE by the selective enzyme, 5-hydroxyeicosanoid dehydrogenase. It actions are mediated by the selective OXE receptor, which is highly expressed on eosinophils, suggesting that it may be important in eosinophilic diseases such as asthma. 5-Oxo-ETE also appears to stimulate tumor cell proliferation and may also be involved in cancer. Highly selective and potent OXE receptor antagonists have recently become available and could help to clarify its pathophysiological role. The 12-lipoxygenase product 12S-HETE acts by the GPR31 receptor and promotes tumor cell proliferation and metastasis and could therefore be a promising target in cancer therapy. It may also be involved as a proinflammatory mediator in diabetes. In contrast, 15S-HETE may have a protective effect in cancer. In addition to GPCRs, higher concentration of HETEs and oxo-ETEs can activate peroxisome proliferator-activated receptors (PPARs) and could potentially regulate a variety of processes by this mechanism. This article is part of a Special Issue entitled "Oxygenated metabolism of PUFA: analysis and biological relevance".
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Affiliation(s)
- William S Powell
- Meakins-Christie Laboratories, Department of Medicine, McGill University, 3626St. Urbain Street, Montreal, Quebec H2X 2P2, Canada.
| | - Joshua Rokach
- Claude Pepper Institute and Department of Chemistry, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32901, USA
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Armstrong MM, Diaz G, Kenyon V, Holman TR. Inhibitory and mechanistic investigations of oxo-lipids with human lipoxygenase isozymes. Bioorg Med Chem 2014; 22:4293-7. [PMID: 24924423 PMCID: PMC4112157 DOI: 10.1016/j.bmc.2014.05.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 05/05/2014] [Accepted: 05/13/2014] [Indexed: 11/22/2022]
Abstract
Oxo-lipids, a large family of oxidized human lipoxygenase (hLOX) products, are of increasing interest to researchers due to their involvement in different inflammatory responses in the cell. Oxo-lipids are unique because they contain electrophilic sites that can potentially form covalent bonds through a Michael addition mechanism with nucleophilic residues in protein active sites and thus increase inhibitor potency. Due to the resemblance of oxo-lipids to LOX substrates, the inhibitor potency of 4 different oxo-lipids; 5-oxo-6,8,11,14-(E,Z,Z,Z)-eicosatetraenoic acid (5-oxo-ETE), 15-oxo-5,8,11,13-(Z,Z,Z,E)-eicosatetraenoic acid (15-oxo-ETE), 12-oxo-5,8,10,14-(Z,Z,E,Z)-eicosatetraenoic acid (12-oxo-ETE), and 13-oxo-9,11-(Z,E)-octadecadienoic acid (13-oxo-ODE) were determined against a library of LOX isozymes; leukocyte 5-lipoxygenase (h5-LOX), human reticulocyte 15-lipoxygenase-1 (h15-LOX-1), human platelet 12-lipoxygenase (h12-LOX), human epithelial 15-lipoxygenase-2 (h15-LOX-2), soybean 15-lipoxygenase-1 (s15-LOX-1), and rabbit reticulocyte 15-LOX (r15-LOX). 15-Oxo-ETE exhibited the highest potency against h12-LOX, with an IC₅₀=1 ± 0.1 μM and was highly selective. Steady state inhibition kinetic experiments determined 15-oxo-ETE to be a mixed inhibitor against h12-LOX, with a Kic value of 0.087 ± 0.008 μM and a Kiu value of 2.10 ± 0.8 μM. Time-dependent studies demonstrated irreversible inhibition with 12-oxo-ETE and h15-LOX-1, however, the concentration of 12-oxo-ETE required (Ki=36.8 ± 13.2 μM) and the time frame (k₂=0.0019 ± 0.00032 s(-1)) were not biologically relevant. These data are the first observations that oxo-lipids can inhibit LOX isozymes and may be another mechanism in which LOX products regulate LOX activity.
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Affiliation(s)
- Michelle M Armstrong
- Chemistry and Biochemistry Department, University of California, Santa Cruz, CA 95064, United States
| | - Giovanni Diaz
- Chemistry and Biochemistry Department, University of California, Santa Cruz, CA 95064, United States
| | - Victor Kenyon
- Chemistry and Biochemistry Department, University of California, Santa Cruz, CA 95064, United States
| | - Theodore R Holman
- Chemistry and Biochemistry Department, University of California, Santa Cruz, CA 95064, United States.
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Generation and dietary modulation of anti-inflammatory electrophilic omega-3 fatty acid derivatives. PLoS One 2014; 9:e94836. [PMID: 24736647 PMCID: PMC3988126 DOI: 10.1371/journal.pone.0094836] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 03/19/2014] [Indexed: 01/07/2023] Open
Abstract
Dietary ω-3 polyunsaturated fatty acids (PUFAs) decrease cardiovascular risk via suppression of inflammation. The generation of electrophilic α,β-unsaturated ketone derivatives of the ω-3 PUFAs docosahexaenoic acid (DHA) and docosapentaenoic acid (DPA) in activated human macrophages is catalyzed by cyclooxygenase-2 (Cox-2). These derivatives are potent pleiotropic anti-inflammatory signaling mediators that act via mechanisms including the activation of Nrf2-dependent phase 2 gene expression and suppression of pro-inflammatory NF-κB-driven gene expression. Herein, the endogenous generation of ω-3 PUFAs electrophilic ketone derivatives and their hydroxy precursors was evaluated in human neutrophils. In addition, their dietary modulation was assessed through a randomized clinical trial. Methods Endogenous generation of electrophilic omega-3 PUFAs and their hydroxy precursors was evaluated by mass spectrometry in neutrophils isolated from healthy subjects, both at baseline and upon stimulation with calcium ionophore. For the clinical trial, participants were healthy adults 30–55 years of age with a reported EPA+DHA consumption of ≤300 mg/day randomly assigned to parallel groups receiving daily oil capsule supplements for a period of 4 months containing either 1.4 g of EPA+DHA (active condition, n = 24) or identical appearing soybean oil (control condition, n = 21). Participants and laboratory technicians remained blinded to treatment assignments. Results 5-lypoxygenase-dependent endogenous generation of 7-oxo-DHA, 7-oxo-DPA and 5-oxo-EPA and their hydroxy precursors is reported in human neutrophils stimulated with calcium ionophore and phorbol 12-myristate 13-acetate (PMA). Dietary EPA+DHA supplementation significantly increased the formation of 7-oxo-DHA and 5-oxo-EPA, with no significant modulation of arachidonic acid (AA) metabolite levels. Conclusions The endogenous detection of these electrophilic ω-3 fatty acid ketone derivatives supports the precept that the benefit of ω-3 PUFA-rich diets can be attributed to the generation of electrophilic oxygenated metabolites that transduce anti-inflammatory actions rather than the suppression of pro-inflammatory AA metabolites. Trial Registration ClinicalTrials.gov NCT00663871
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Davies SS, Guo L. Lipid peroxidation generates biologically active phospholipids including oxidatively N-modified phospholipids. Chem Phys Lipids 2014; 181:1-33. [PMID: 24704586 DOI: 10.1016/j.chemphyslip.2014.03.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 02/28/2014] [Accepted: 03/18/2014] [Indexed: 12/25/2022]
Abstract
Peroxidation of membranes and lipoproteins converts "inert" phospholipids into a plethora of oxidatively modified phospholipids (oxPL) that can act as signaling molecules. In this review, we will discuss four major classes of oxPL: mildly oxygenated phospholipids, phospholipids with oxidatively truncated acyl chains, phospholipids with cyclized acyl chains, and phospholipids that have been oxidatively N-modified on their headgroups by reactive lipid species. For each class of oxPL we will review the chemical mechanisms of their formation, the evidence for their formation in biological samples, the biological activities and signaling pathways associated with them, and the catabolic pathways for their elimination. We will end by briefly highlighting some of the critical questions that remain about the role of oxPL in physiology and disease.
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Affiliation(s)
- Sean S Davies
- Division of Clinical Pharmacology, Department of Pharmacology, Vanderbilt University, United States.
| | - Lilu Guo
- Division of Clinical Pharmacology, Department of Pharmacology, Vanderbilt University, United States
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O'Donnell VB, Murphy RC, Watson SP. Platelet lipidomics: modern day perspective on lipid discovery and characterization in platelets. Circ Res 2014; 114:1185-203. [PMID: 24677238 PMCID: PMC4021279 DOI: 10.1161/circresaha.114.301597] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Lipids are diverse families of biomolecules that perform essential structural and signaling roles in platelets. Their formation and metabolism are tightly controlled by enzymes and signal transduction pathways, and their dysregulation leads to significant defects in platelet function and disease. Platelet activation is associated with significant changes to membrane lipids, and formation of diverse bioactive lipids plays essential roles in hemostasis. In recent years, new generation mass spectrometry analysis of lipids (termed lipidomics) has begun to alter our understanding of how these molecules participate in key cellular processes. Although the application of lipidomics to platelet biology is still in its infancy, seminal earlier studies have shaped our knowledge of how lipids regulate key aspects of platelet biology, including aggregation, shape change, coagulation, and degranulation, as well as how lipids generated by platelets influence other cells, such as leukocytes and the vascular wall, and thus how they regulate hemostasis, vascular integrity, and inflammation, as well as contribute to pathologies, including arterial/deep vein thrombosis and atherosclerosis. This review will provide a brief historical perspective on the characterization of lipids in platelets, then an overview of the new generation lipidomic approaches, their recent application to platelet biology, and future perspectives for research in this area. The major platelet-regulatory lipid families, their formation, metabolism, and their role in health and disease, will be summarized.
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Affiliation(s)
- Valerie B O'Donnell
- From the Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom (V.B.O'D.); Department of Pharmacology, University of Colorado at Denver, Aurora (R.C.M.); and Birmingham Platelet Group, Centre for Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, Birmingham, United Kingdom (S.P.W.)
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Abstract
Oxidized PLs (OxPLs) generated in health and disease are now recognized as important mediators of cellular signalling. There is an increasing body of evidence showing that PL peroxidation is not only increased in vascular disorders, but is also a physiological event of relevance to coagulation, innate immunity, and self-tolerance. Nonenzymatically formed OxPLs generated during chronic inflammation is an uncontrolled event, generating hundreds of diverse structures, and prone to more deleterious bioactivities. In contrast, enzymatic formation of OxPLs is tightly regulated, involving receptors and intracellular signaling, acting as part of the normal physiological response to injury in order to restore homeostasis. In the present review, the major nonenzymatic OxPLs structures found during vascular inflammation are summarized, along with a brief description of their known biological activities. Also, we review what is currently known about enzymatic formation of OxPLs by acutely activated immune cells and their signaling actions under homeostatic and pathological conditions.
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Affiliation(s)
- Maceler Aldrovandi
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, CF14 4XN, UK.
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Aldrovandi M, Hammond VJ, Podmore H, Hornshaw M, Clark SR, Marnett LJ, Slatter DA, Murphy RC, Collins PW, O'Donnell VB. Human platelets generate phospholipid-esterified prostaglandins via cyclooxygenase-1 that are inhibited by low dose aspirin supplementation. J Lipid Res 2013; 54:3085-97. [PMID: 23883581 PMCID: PMC3793613 DOI: 10.1194/jlr.m041533] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Oxidized phospholipids (oxPLs) generated nonenzymatically display pleiotropic biological actions in inflammation. Their generation by cellular cyclooxygenases (COXs) is currently unknown. To determine whether platelets generate prostaglandin (PG)-containing oxPLs, then characterize their structures and mechanisms of formation, we applied precursor scanning-tandem mass spectrometry to lipid extracts of agonist-activated human platelets. Thrombin, collagen, or ionophore activation stimulated generation of families of PGs comprising PGE2 and D2 attached to four phosphatidylethanolamine (PE) phospholipids (16:0p/, 18:1p/, 18:0p/, and 18:0a/). They formed within 2 to 5 min of activation in a calcium, phospholipase C, p38 MAP kinases, MEK1, cPLA2, and src tyrosine kinase-dependent manner (28.1 ± 2.3 pg/2 × 108 platelets). Unlike free PGs, they remained cell associated, suggesting an autocrine mode of action. Their generation was inhibited by in vivo aspirin supplementation (75 mg/day) or in vitro COX-1 blockade. Inhibitors of fatty acyl reesterification blocked generation significantly, while purified COX-1 was unable to directly oxidize PE in vitro. This indicates that they form in platelets via rapid esterification of COX-1 derived PGE2/D2 into PE. In summary, COX-1 in human platelets acutely mediates membrane phospholipid oxidation via formation of PG-esterified PLs in response to pathophysiological agonists.
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Affiliation(s)
- Maceler Aldrovandi
- Institute of Infection and Immunity, School of Medicine, Cardiff University
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Jónasdóttir HS, Nicolardi S, Jonker W, Derks R, Palmblad M, Ioan-Facsinay A, Toes R, van der Burgt YEM, Deelder AM, Mayboroda OA, Giera M. Detection and Structural Elucidation of Esterified Oxylipids in Human Synovial Fluid by Electrospray Ionization-Fourier Transform Ion-Cyclotron Mass Spectrometry and Liquid Chromatography-Ion Trap-MS3: Detection of Esterified Hydroxylated Docosapentaenoic Acid Containing Phospholipids. Anal Chem 2013; 85:6003-10. [DOI: 10.1021/ac400826z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hulda S. Jónasdóttir
- Leiden University Medical Center (LUMC), Center for Proteomics and Metabolomics,
Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Simone Nicolardi
- Leiden University Medical Center (LUMC), Center for Proteomics and Metabolomics,
Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Willem Jonker
- Leiden University Medical Center (LUMC), Center for Proteomics and Metabolomics,
Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Rico Derks
- Leiden University Medical Center (LUMC), Center for Proteomics and Metabolomics,
Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Magnus Palmblad
- Leiden University Medical Center (LUMC), Center for Proteomics and Metabolomics,
Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Andreea Ioan-Facsinay
- Leiden University Medical Center (LUMC), Department of Rheumatology, Albinusdreef
2, 2300RC Leiden, The Netherlands
| | - René Toes
- Leiden University Medical Center (LUMC), Department of Rheumatology, Albinusdreef
2, 2300RC Leiden, The Netherlands
| | - Yuri E. M. van der Burgt
- Leiden University Medical Center (LUMC), Center for Proteomics and Metabolomics,
Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - André M. Deelder
- Leiden University Medical Center (LUMC), Center for Proteomics and Metabolomics,
Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Oleg A. Mayboroda
- Leiden University Medical Center (LUMC), Center for Proteomics and Metabolomics,
Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Martin Giera
- Leiden University Medical Center (LUMC), Center for Proteomics and Metabolomics,
Albinusdreef 2, 2300RC Leiden, The Netherlands
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Villacorta L, Chang L, Salvatore SR, Ichikawa T, Zhang J, Petrovic-Djergovic D, Jia L, Carlsen H, Schopfer FJ, Freeman BA, Chen YE. Electrophilic nitro-fatty acids inhibit vascular inflammation by disrupting LPS-dependent TLR4 signalling in lipid rafts. Cardiovasc Res 2013; 98:116-24. [PMID: 23334216 DOI: 10.1093/cvr/cvt002] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
AIMS Electrophilic fatty acid nitroalkene derivatives, products of unsaturated fatty acid nitration, exert long-term cardiovascular protection in experimental models of metabolic and cardiovascular diseases. The goal of this study is to examine the effects of nitro-fatty acids in the regulation of upstream signalling events in nuclear factor-κB (NF-κB) activation and determine whether low-dose acute administration of nitro-fatty acids reduces vascular inflammation in vivo. METHODS AND RESULTS Using NF-κB-luciferase transgenic mice, it was determined that pre-emptive treatment with nitro-oleic acid (OA-NO2), but not oleic acid (OA) inhibits lipopolysaccharide (LPS)-induced NF-κB activation both in vivo and in isolated macrophages. Acute intravenous administration of OA-NO2 was equally effective to inhibit leukocyte recruitment to the vascular endothelium assessed by intravital microscopy and significantly reduces aortic expression of adhesion molecules. An acute treatment with OA-NO2 in vivo yielding nanomolar concentrations in plasma, is sufficient to inhibit LPS-induced Toll-like receptor 4 (TLR4)-induced cell surface expression in leukocytes and NF-κB activation. In vitro experiments reveal that OA-NO2 suppresses LPS-induced TLR4 signalling, inhibitor of κB (IκBα) phosphorylation and ubiquitination, phosphorylation of the IκB kinase (IKK), impairing the recruitment of the TLR4 and TNF receptor associated factor 6 (TRAF6) to the lipid rafts compartments. CONCLUSION These studies demonstrate that acute administration of nitro-fatty acids is effective to reduce vascular inflammation in vivo. These findings reveal a direct role of nitro-fatty acids in the disruption of the TLR4 signalling complex in lipid rafts, upstream events of the NF-κB pathway, leading to resolution of pro-inflammatory activation of NF-κB in the vasculature.
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Affiliation(s)
- Luis Villacorta
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, North Campus Research Complex Building 26 Room 355S, 2800 Plymouth Road, Ann Arbor, MI, USA.
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Musille PM, Kohn JA, Ortlund EA. Phospholipid--driven gene regulation. FEBS Lett 2013; 587:1238-46. [PMID: 23333623 DOI: 10.1016/j.febslet.2013.01.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 01/03/2013] [Accepted: 01/07/2013] [Indexed: 12/15/2022]
Abstract
Phospholipids (PLs), well known for their fundamental role in cellular structure, play critical signaling roles via their derivatives and cleavage products acting as second messengers in signaling cascades. Recent work has shown that intact PLs act as signaling molecules in their own right by modulating the activity of nuclear hormone transcription factors responsible for tuning genes involved in metabolism, lipid flux, steroid synthesis and inflammation. As such, PLs have been classified as novel hormones. This review highlights recent work in PL-driven gene regulation with a focus on the unique structural features of phospholipid-sensing transcription factors and what sets them apart from well known soluble phospholipid transporters.
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Affiliation(s)
- Paul M Musille
- Department of Biochemistry, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, USA
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