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Parchem K, Letsiou S, Petan T, Oskolkova O, Medina I, Kuda O, O'Donnell VB, Nicolaou A, Fedorova M, Bochkov V, Gladine C. Oxylipin profiling for clinical research: Current status and future perspectives. Prog Lipid Res 2024:101276. [PMID: 38697517 DOI: 10.1016/j.plipres.2024.101276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/24/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Oxylipins are potent lipid mediators with increasing interest in clinical research. They are usually measured in systemic circulation and can provide a wealth of information regarding key biological processes such as inflammation, vascular tone, or blood coagulation. Although procedures still require harmonization to generate comparable oxylipin datasets, performing comprehensive profiling of circulating oxylipins in large studies is feasible and no longer restricted by technical barriers. However, it is essential to improve and facilitate the biological interpretation of complex oxylipin profiles to truly leverage their potential in clinical research. This requires regular updating of our knowledge about the metabolism and the mode of action of oxylipins, and consideration of all factors that may influence circulating oxylipin profiles independently of the studied disease or condition. This review aims to provide the readers with updated and necessary information regarding oxylipin metabolism, their different forms in systemic circulation, the current limitations in deducing oxylipin cellular effects from in vitro bioactivity studies, the biological and technical confounding factors needed to consider for a proper interpretation of oxylipin profiles.
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Affiliation(s)
- Karol Parchem
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Gabriela Narutowicza St., 80-233 Gdańsk, Poland; Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
| | - Sophia Letsiou
- Department of Biomedical Sciences, University of West Attica, Ag. Spiridonos St. Egaleo, 12243 Athens, Greece.
| | - Toni Petan
- Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
| | - Olga Oskolkova
- Institute of Pharmaceutical Sciences, University of Graz, Humboldtstrasse 46/III, 8010 Graz, Austria.
| | - Isabel Medina
- Instituto de Investigaciones Marinas-Consejo Superior de Investigaciones Científicas (IIM-CSIC), Eduardo Cabello 6, E-36208 Vigo, Spain.
| | - Ondrej Kuda
- Institute of Physiology, Czech Academy of Sciences, Videnska 1083, 14200 Prague, Czech Republic.
| | - Valerie B O'Donnell
- Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK.
| | - Anna Nicolaou
- School of Health Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9NT, UK.
| | - Maria Fedorova
- Center of Membrane Biochemistry and Lipid Research, University Hospital and Faculty of Medicine Carl Gustav Carus of TU Dresden, 01307 Dresden, Germany.
| | - Valery Bochkov
- Institute of Pharmaceutical Sciences, University of Graz, Humboldtstrasse 46/III, 8010 Graz, Austria.
| | - Cécile Gladine
- Université Clermont Auvergne, INRAE, UNH, Clermont-Ferrand, France.
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Buckler AJ, Doros G, Kinninger A, Lakshmanan S, Le VT, Libby P, May HT, Muhlestein JB, Nelson JR, Nicolaou A, Roy SK, Shaikh K, Shekar C, Tayek JA, Zheng L, Bhatt DL, Budoff MJ. Quantitative imaging biomarkers of coronary plaque morphology: insights from EVAPORATE. Front Cardiovasc Med 2023; 10:1204071. [PMID: 37600044 PMCID: PMC10435977 DOI: 10.3389/fcvm.2023.1204071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/12/2023] [Indexed: 08/22/2023] Open
Abstract
Aims Residual cardiovascular risk persists despite statin therapy. In REDUCE-IT, icosapent ethyl (IPE) reduced total events, but the mechanisms of benefit are not fully understood. EVAPORATE evaluated the effects of IPE on plaque characteristics by coronary computed tomography angiography (CCTA). Given the conclusion that the IPE-treated patients demonstrate that plaque burden decreases has already been published in the primary study analysis, we aimed to demonstrate whether the use of an analytic technique defined and validated in histological terms could extend the primary study in terms of whether such changes could be reliably seen in less time on drug, at the individual (rather than only at the cohort) level, or both, as neither of these were established by the primary study result. Methods and Results EVAPORATE randomized the patients to IPE 4 g/day or placebo. Plaque morphology, including lipid-rich necrotic core (LRNC), fibrous cap thickness, and intraplaque hemorrhage (IPH), was assessed using the ElucidVivo® (Elucid Bioimaging Inc.) on CCTA. The changes in plaque morphology between the treatment groups were analyzed. A neural network to predict treatment assignment was used to infer patient representation that encodes significant morphological changes. Fifty-five patients completed the 18-month visit in EVAPORATE with interpretable images at each of the three time points. The decrease of LRNC between the patients on IPE vs. placebo at 9 months (reduction of 2 mm3 vs. an increase of 41 mm3, p = 0.008), widening at 18 months (6 mm3 vs. 58 mm3 increase, p = 0.015) were observed. While not statistically significant on a univariable basis, reductions in wall thickness and increases in cap thickness motivated multivariable modeling on an individual patient basis. The per-patient response assessment was possible using a multivariable model of lipid-rich phenotype at the 9-month follow-up, p < 0.01 (sustained at 18 months), generalizing well to a validation cohort. Conclusion Plaques in the IPE-treated patients acquired more characteristics of stability. Reliable assessment using histologically validated analysis of individual response is possible at 9 months, with sustained stabilization at 18 months, providing a quantitative basis to elucidate drug mechanism and assess individual patient response.
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Affiliation(s)
- Andrew J. Buckler
- Department of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Elucid Bioimaging Inc., Boston, MA, United States
| | | | - April Kinninger
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Suvasini Lakshmanan
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Viet T. Le
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, United States
- Rocky Mountain University of Health Profession, Provo, UT, United States
| | - Peter Libby
- Brigham and Women’s Hospital Heart & Vascular Center and Harvard Medical School, Boston, MA, United States
| | - Heidi T. May
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, United States
| | - Joseph B. Muhlestein
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, United States
| | - John R. Nelson
- California Cardiovascular Institute, Fresno, CA, United States
| | | | - Sion K. Roy
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Kashif Shaikh
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Chandana Shekar
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - John A. Tayek
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Luke Zheng
- BAIM Institute, Boston, MA, United States
| | - Deepak L. Bhatt
- Brigham and Women’s Hospital Heart & Vascular Center and Harvard Medical School, Boston, MA, United States
| | - Matthew J. Budoff
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
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Krakowiak K, Maidstone RJ, Chakraborty A, Kendall AC, Nicolaou A, Downton P, Cristian AD, Singh D, Loudon AS, Ray DW, Durrington HJ. Identification of diurnal rhythmic blood markers in bronchial asthma. ERJ Open Res 2023; 9:00161-2023. [PMID: 37404842 PMCID: PMC10316035 DOI: 10.1183/23120541.00161-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 04/01/2023] [Indexed: 07/06/2023] Open
Abstract
Rationale Asthma is a rhythmic inflammatory disease of the airway, regulated by the circadian clock. "Spill-over" of airway inflammation into the systemic circulation occurs in asthma and is reflected in circulating immune cell repertoire. The objective of the present study was to determine how asthma impacts peripheral blood diurnal rhythmicity. Methods 10 healthy and 10 mild/moderate asthma participants were recruited to an overnight study. Blood was drawn every 6 h for 24 h. Main results The molecular clock in blood cells in asthma is altered; PER3 is significantly more rhythmic in asthma compared to healthy controls. Blood immune cell numbers oscillate throughout the day, in health and asthma. Peripheral blood mononucleocytes from asthma patients show significantly enhanced responses to immune stimulation and steroid suppression at 16:00 h, compared to at 04:00 h. Serum ceramides show complex changes in asthma: some losing and others gaining rhythmicity. Conclusions This is the first report showing that asthma is associated with a gain in peripheral blood molecular clock rhythmicity. Whether the blood clock is responding to rhythmic signals received from the lung or driving rhythmic pathology within the lung itself is not clear. Dynamic changes occur in serum ceramides in asthma, probably reflecting systemic inflammatory action. The enhanced responses of asthma blood immune cells to glucocorticoid at 16:00 h may explain why steroid administration is more effective at this time.
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Affiliation(s)
- Karolina Krakowiak
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Robert J. Maidstone
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Amlan Chakraborty
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Alexandra C. Kendall
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Anna Nicolaou
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Polly Downton
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | | | - Dave Singh
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Andrew S.I. Loudon
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - David W. Ray
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Hannah J. Durrington
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Medicines Evaluation Unit, University of Manchester, Manchester, UK
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Papafilippou L, Nicolaou A, Kendall AC, Camacho-Muñoz D, Hadjidemetriou M. The lipidomic profile of the nanoparticle-biomolecule corona reflects the diversity of plasma lipids. Nanoscale 2023. [PMID: 37357917 DOI: 10.1039/d2nr05982g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
The spontaneous self-assembly of biomolecules around the surface of nanoparticles (NPs) once exposed to plasma and other biofluids, has been termed the 'biomolecule corona'. While the protein composition of the biomolecule corona has been widely characterised, the interaction of NPs with the plasma lipidome has not been fully investigated. Here, we use targeted and untargeted lipidomics to analyse a wide spectrum of bioactive lipids adsorbed onto the surface of liposome NPs post-incubation with human plasma. Our data indicate that the biomolecule corona contains a diverse mixture of simple and complex lipid species, including sphingolipids such as ceramides and sphingomyelins, glycerolipids, glycerophospholipids, cholesteryl esters, as well as oxylipin and N-acyl ethanolamine derivatives of fatty acids. Although the corona lipidomic profiles reflected the overall composition of the plasma lipidome, monohydroxy- and oxo-fatty acid oxylipins, mono-, di- and tri- acylglycerols, sphingomyelins and ceramides showed a preferential binding for liposome NP surface. Interestingly, the biomolecule corona lipid profiles appeared to mirror those of the lipoprotein lipid cargo, suggesting that lipid species may be carried within the lipoprotein complexes attached to the corona. Proteomic analysis of corona-associated proteins showed the presence of several apolipoproteins (A-I, A-II, A-IV, B, C-I, C-III, C-IV, C2-C4, D, E, L, M and lipoprotein Lp(A)), supporting this notion. Our findings reveal the wide lipid diversity of the biomolecule corona and indicate a potential lipoprotein-mediated adsorption mechanism of lipids onto liposome NPs, highlighting the importance of bridging proteomics with lipidomics to fully comprehend the interactions at the bio-nano interface.
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Affiliation(s)
- Lana Papafilippou
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, AV Hill Building, University of Manchester, Manchester Academic Healthy Science Centre, Manchester, M13 9PT, UK.
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester Academic Healthy Science Centre, Manchester, M13 9PT, UK.
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, University of Manchester, Manchester, M13 9PT, UK
| | - Alexandra C Kendall
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester Academic Healthy Science Centre, Manchester, M13 9PT, UK.
| | - Dolores Camacho-Muñoz
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester Academic Healthy Science Centre, Manchester, M13 9PT, UK.
| | - Marilena Hadjidemetriou
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, AV Hill Building, University of Manchester, Manchester Academic Healthy Science Centre, Manchester, M13 9PT, UK.
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Fabbris G, Meyers D, Shen Y, Bisogni V, Zhang J, Mitchell JF, Norman MR, Johnston S, Feng J, Chiuzbăian GS, Nicolaou A, Jaouen N, Dean MPM. Resonant inelastic x-ray scattering data for Ruddlesden-Popper and reduced Ruddlesden-Popper nickelates. Sci Data 2023; 10:174. [PMID: 36991033 PMCID: PMC10060392 DOI: 10.1038/s41597-023-02079-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 03/16/2023] [Indexed: 03/31/2023] Open
Abstract
Ruddlesden-Popper and reduced Ruddlesden-Popper nickelates are intriguing candidates for mimicking the properties of high-temperature superconducting cuprates. The degree of similarity between these nickelates and cuprates has been the subject of considerable debate. Resonant inelastic x-ray scattering (RIXS) has played an important role in exploring their electronic and magnetic excitations, but these efforts have been stymied by inconsistencies between different samples and the lack of publicly available data for detailed comparison. To address this issue, we present open RIXS data on La4Ni3O10 and La4Ni3O8.
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Affiliation(s)
- G Fabbris
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York, 11973, USA.
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois, 60439, USA.
| | - D Meyers
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York, 11973, USA
- Department of Physics, Oklahoma State University, Stillwater, Oklahoma, 74078, USA
| | - Y Shen
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York, 11973, USA
| | - V Bisogni
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York, 11973, USA
| | - J Zhang
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois, 60439, USA
- Institute of Crystal Materials, Shandong University, Jinan, Shandong, 250100, China
| | - J F Mitchell
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - M R Norman
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - S Johnston
- Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee, 37966, USA
- Institute of Advanced Materials and Manufacturing, The University of Tennessee, Knoxville, Tennessee, 37996, USA
| | - J Feng
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, 75005, Paris, France
- Institute of Advanced Science Facilities, Shenzhen, Guangdong, 518107, China
| | - G S Chiuzbăian
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, 75005, Paris, France
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192, Gif-sur-Yvette, France
| | - A Nicolaou
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192, Gif-sur-Yvette, France
| | - N Jaouen
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192, Gif-sur-Yvette, France
| | - M P M Dean
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York, 11973, USA.
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Villines TC, Ali ZA, Kitagawa K, Pelberg RA, Varga-Szemes A, Schoepf UJ, Rodriguez P, Phillips M, Rajeev A, Ruda H, Nicolaou A, Buckler A. DIAGNOSTIC ACCURACY OF A PLAQUE-BASED CORONARY CTA FRACTIONAL FLOW RESERVE SOFTWARE IN MEN VERSUS WOMEN: RESULTS FROM A MULTI-CENTER STUDY. J Am Coll Cardiol 2023. [DOI: 10.1016/s0735-1097(23)01868-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Villines TC, Varga-Szemes A, Schoepf UJ, Ali ZA, Pelberg RA, Kitagawa K, Phillips M, Rajeev A, Ruda H, Nicolaou A, Buckler A. RELATIONSHIP BETWEEN NON-INVASIVE FRACTIONAL FLOW RESERVE AND HISTOLOGICALLY-DEFINED UNSTABLE PLAQUE: A MULTI-COHORT CORONARY COMPUTED TOMOGRAPHY ANGIOGRAPHY STUDY. J Am Coll Cardiol 2023. [DOI: 10.1016/s0735-1097(23)01953-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Villines TC, Ali ZA, Kitagawa K, Pelberg RA, Varga-Szemes A, Schoepf UJ, Phillips M, Rajeev A, Ruda H, Nicolaou A, Buckler A. PERFORMANCE OF COMPUTED TOMOGRAPHY FRACTIONAL FLOW RESERVE FROM PLAQUE-BASED MEASURES OF VASODILATORY CAPACITY: A MULTICENTER STUDY. J Am Coll Cardiol 2023. [DOI: 10.1016/s0735-1097(23)01788-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Nicolaou A, Kendall AC. Current insights into skin lipids and their roles in cutaneous health and disease. Curr Opin Clin Nutr Metab Care 2023; 26:83-90. [PMID: 36574279 DOI: 10.1097/mco.0000000000000902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
PURPOSE OF REVIEW The unique and complex array of cutaneous lipids include essential components of the skin structure and signalling molecules mediating homeostasis and inflammation. Understanding skin lipid biology and metabolism can support our comprehension of health and disease, including systemic conditions with cutaneous involvement. RECENT FINDINGS Lipids found on the skin surface, produced by both the host and resident microbes, maintain and regulate the skin microbiome and the epidermal barrier, whilst altered contributions from either source can be detrimental to skin health. The unique lipid composition of the epidermal barrier is essential for its function, and recent studies have expanded our understanding of epidermal ceramide production. This has been supported by improved models available for skin research, including organotypic skin models enabling in-vitro production of complex acylceramides for the first time, and model systems facilitating in-silico exploration of the lipid profile changes observed in clinical samples. Studies have revealed further involvement of lipid mediators such as eicosanoids in cutaneous inflammation, as well as immune regulation in both healthy and diseased skin. SUMMARY Skin lipids offer exciting opportunities as therapeutic targets for many conditions, whether through topical interventions or nutritional supplementation.
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Affiliation(s)
- Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Alexandra C Kendall
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences
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Buckler AJ, Gotto AM, Rajeev A, Nicolaou A, Sakamoto A, St Pierre S, Phillips M, Virmani R, Villines TC. Atherosclerosis risk classification with computed tomography angiography: A radiologic-pathologic validation study. Atherosclerosis 2023; 366:42-48. [PMID: 36481054 DOI: 10.1016/j.atherosclerosis.2022.11.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/28/2022] [Accepted: 11/16/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND AIMS The application of machine learning to assess plaque risk phenotypes on cardiovascular CT angiography (CTA) is an area of active investigation. Studies using accepted histologic definitions of plaque risk as ground truth for machine learning models are uncommon. The aim was to evaluate the accuracy of a machine-learning software for determining plaque risk phenotype as compared to expert pathologists (histologic ground truth). METHODS Sections of atherosclerotic plaques paired with CTA were prospectively collected from patients undergoing carotid endarterectomy at two centers. Specimens were annotated for lipid-rich necrotic core, calcification, matrix, and intraplaque hemorrhage at 2 mm spacing and classified as minimal disease, stable plaque, or unstable plaque according to a modified American Heart Association histological definition. Phenotype is determined in two steps: plaque morphology is delineated according to histological tissue definitions, followed by a machine learning classifier. The performance in derivation and validation cohorts for plaque risk categorization and stenosis was compared to histologic ground truth at each matched cross-section. RESULTS A total of 496 and 408 vessel cross-sections in the derivation and validation cohorts (from 30 and 23 patients, respectively). The software demonstrated excellent agreement in the validation cohort with histological ground truth plaque risk phenotypes with weighted kappa of 0.82 [0.78-0.86] and area under the receiver operating curve for correct identification of plaque type was 0.97 [0.96, 0.98], 0.95 [0.94, 0.97], 0.99 [0.99, 1.0] for unstable plaque, stable plaque, and minimal disease, respectively. Diameter stenosis correlated poorly to histologically defined plaque type; weighted kappa 0.25 in the validation cohort. CONCLUSIONS A machine-learning software trained on histological ground-truth tissue inputs demonstrated high accuracy for identifying plaque stability phenotypes as compared to expert pathologists.
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Affiliation(s)
- Andrew J Buckler
- Department of Molecular Medicine, Karolinska Institute, Stockholm, Sweden; Elucid Bioimaging Inc., Boston, MA, USA.
| | - Antonio M Gotto
- Weill Medical College of Cornell University, New York, NY, USA
| | | | | | | | | | | | - Renu Virmani
- Cardiovascular Pathology Institute, Gaithersburg, MD, USA
| | - Todd C Villines
- Elucid Bioimaging Inc., Boston, MA, USA; Cardiology Division, University of Virginia Health System, Charlottesville, VA, USA
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Johnstone ED, Westwood M, Dilworth M, Wray JR, Kendall AC, Nicolaou A, Myers JE. Plasma S1P and Sphingosine are not Different Prior to Pre-Eclampsia in Women at High Risk of Developing the Disease. J Lipid Res 2022; 64:100312. [PMID: 36370808 PMCID: PMC9760648 DOI: 10.1016/j.jlr.2022.100312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022] Open
Abstract
Sphingolipids like sphingosine-1-phosphate (S1P) have been implicated in the pathophysiology of pre-eclampsia. We hypothesized that plasma S1P would be increased in women at high risk of developing pre-eclampsia who subsequently develop the disease. Low circulating placental growth factor (PlGF) is known to be associated with development of pre-eclampsia; so further, we hypothesized that increased S1P would be associated with concurrently low PlGF. This was a case-control study using stored maternal blood samples from 14 to 24 weeks of pregnancy, collected from 95 women at increased risk of pre-eclampsia. Pregnancy outcome was classified as uncomplicated, preterm pre-eclampsia (<37 weeks), or term pre-eclampsia. Plasma lipids were extracted and analyzed by ultraperformance liquid chromatography coupled to electrospray ionization MS/MS to determine concentrations of S1P and sphingosine. Median plasma S1P was 0.339 nmol/ml, and median sphingosine was 6.77 nmol/l. There were no differences in the plasma concentrations of S1P or sphingosine in women who subsequently developed pre-eclampsia, no effect of gestational age, fetal sex, ethnicity, or the presence of pre-existing hypertension. There was a correlation between S1P and sphingosine plasma concentration (P < 0.0001). There was no relationship between S1P or sphingosine with PlGF. Previous studies have suggested that plasma S1P may be a biomarker of pre-eclampsia. In our larger study, we failed to demonstrate there are women at high risk of developing the disease. We did not show a relationship with known biomarkers of the disease, suggesting that S1P is unlikely to be a useful predictor of the development of pre-eclampsia later in pregnancy.
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Affiliation(s)
- Edward D. Johnstone
- Maternal and Fetal Health Research Centre, School of Medical Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK,For correspondence: Edward D. Johnstone
| | - Melissa Westwood
- Maternal and Fetal Health Research Centre, School of Medical Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Mark Dilworth
- Maternal and Fetal Health Research Centre, School of Medical Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Jonathan R. Wray
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Alexandra C. Kendall
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Jenny E. Myers
- Maternal and Fetal Health Research Centre, School of Medical Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
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Camacho-Muñoz D, Niven J, Kucuk S, Cucchi D, Certo M, Jones SW, Fischer DP, Mauro C, Nicolaou A. Omega-3 polyunsaturated fatty acids reverse the impact of western diets on regulatory T cell responses through averting ceramide-mediated pathways. Biochem Pharmacol 2022; 204:115211. [PMID: 35985403 DOI: 10.1016/j.bcp.2022.115211] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 08/10/2022] [Accepted: 08/10/2022] [Indexed: 11/02/2022]
Abstract
Western diet (WD), high in sugar and fat, promotes obesity and associated chronic low-grade pro-inflammatory environment, leading to impaired immune function, reprogramming of innate and adaptive immune cells, and development of chronic degenerative diseases, including cardiovascular disease. Increased concentrations of circulating and tissue ceramides contribute to inflammation and cellular dysfunction common in immune metabolic and cardiometabolic disease. Therefore, ceramide-lowering interventions have been considered as strategies to improve adipose tissue health. Here, we report the ability of omega-3 polyunsaturated fatty acids (n-3PUFA) to attenuate inflammatory phenotypes promoted by WD, through ceramide-dependent pathways. Using an animal model, we show that enrichment of WD diet with n-3PUFA, reduced the expression of ceramide synthase 2 (CerS2), and lowered the concentration of long-chain ceramides (C23-C26) in plasma and adipose tissues. N-3PUFA also increased prevalence of the anti-inflammatory CD4+Foxp3+ and CD4+Foxp3+CD25+ Treg subtypes in lymphoid organs. The CerS inhibitor FTY720 mirrored the effect of n-3PUFA. Treatment of animal and human T cells with ceramide C24 in vitro, reduced CD4+Foxp3+ Treg polarisation and IL-10 production, and increased IL-17, while it decreased Erk and Akt phosphorylation downstream of T cell antigen receptors (TCR). These findings suggest that molecular mechanisms mediating the adverse effect of ceramides on regulatory T lymphocytes, progress through reduced TCR signalling. Our findings suggest that nutritional enrichment of WD with fish oil n-3PUFA can partially mitigate its detrimental effects, potentially improving the low-grade inflammation associated with immune metabolic disease. Compared to pharmacological interventions, n-3PUFA offer a simpler approach that can be accommodated as lifestyle choice.
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Affiliation(s)
- Dolores Camacho-Muñoz
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
| | - Jennifer Niven
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2WB, UK
| | - Salih Kucuk
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2WB, UK
| | - Danilo Cucchi
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
| | - Michelangelo Certo
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2WB, UK
| | - Simon W Jones
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2WB, UK
| | - Deborah P Fischer
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
| | - Claudio Mauro
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2WB, UK; William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK.
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9NT, UK.
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13
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McGurk KA, Farrell L, Kendall AC, Keavney BD, Nicolaou A. Genetic analyses of circulating PUFA-derived mediators identifies heritable dihydroxyeicosatrienoic acid species. Prostaglandins Other Lipid Mediat 2022; 160:106638. [PMID: 35472599 DOI: 10.1016/j.prostaglandins.2022.106638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/30/2022] [Accepted: 04/20/2022] [Indexed: 10/18/2022]
Abstract
Estimates of heritability are the first step in identifying a trait with substantial variation due to genetic factors. Large-scale genetic analyses can identify the DNA variants that influence the levels of circulating lipid species and the statistical technique Mendelian randomisation can use these DNA variants to address potential causality of these lipids in disease. We estimated the heritability of plasma eicosanoids, octadecanoids and docosanoids to identify those lipid species with substantial heritability. We analysed plasma lipid mediators in 31 White British families (196 participants) ascertained for high blood pressure and deeply clinically and biochemically phenotyped over a 25-year period. We found that the dihydroxyeicosatrienoic acid (DHET) species, 11,12-DHET and 14,15-DHET, products of arachidonic acid metabolism by cytochrome P450 (CYP) monooxygenase and soluble epoxide hydrolase (sEH), exhibited substantial heritability (h2 = 33%-37%; Padj<0.05). Identification of these two heritable bioactive lipid species allows for future large-scale, targeted, lipidomics-genomics analyses to address causality in cardiovascular and other diseases.
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Affiliation(s)
- Kathryn A McGurk
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK; Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Laura Farrell
- Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Alexandra C Kendall
- Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Bernard D Keavney
- Manchester Heart Centre, Manchester University NHS Foundation Trust, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
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14
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Kendall AC, Nicolaou A. Topical application of lipids to correct abnormalities in the epidermal lipid barrier. Br J Dermatol 2022; 186:764-765. [PMID: 35501940 PMCID: PMC9321633 DOI: 10.1111/bjd.21294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Linked Article: Danby et al. Br J Dermatol 2022; 186:875–886.
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Affiliation(s)
- Alexandra C Kendall
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, University of Manchester, Manchester, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, University of Manchester, Manchester, UK
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15
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Mellody KT, Kendall AC, Wray JR, Foster AR, Langton AK, Costello P, Newton VL, Bell M, Griffiths CEM, Nicolaou A, Watson REB, Pilkington SM. Influence of menopause and hormone replacement therapy on epidermal ageing and skin biomechanical function. J Eur Acad Dermatol Venereol 2022; 36:e576-e580. [PMID: 35279892 PMCID: PMC9314060 DOI: 10.1111/jdv.18071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K T Mellody
- Centre for Dermatology Research Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences The University of Manchester & Salford Royal NHS Foundation Trust Manchester Academic Health Science Centre UK
| | - A C Kendall
- Laboratory for Lipidomics and Lipid Biology Division of Pharmacy and Optometry School of Health Sciences Faculty of Biology Medicine and Health University of Manchester Manchester Academic Health Science Centre Manchester M13 9PL UK
| | - J R Wray
- Laboratory for Lipidomics and Lipid Biology Division of Pharmacy and Optometry School of Health Sciences Faculty of Biology Medicine and Health University of Manchester Manchester Academic Health Science Centre Manchester M13 9PL UK
| | - A R Foster
- Centre for Dermatology Research Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences The University of Manchester & Salford Royal NHS Foundation Trust Manchester Academic Health Science Centre UK
| | - A K Langton
- Centre for Dermatology Research Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences The University of Manchester & Salford Royal NHS Foundation Trust Manchester Academic Health Science Centre UK
| | - P Costello
- Centre for Dermatology Research Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences The University of Manchester & Salford Royal NHS Foundation Trust Manchester Academic Health Science Centre UK
| | - V L Newton
- No7 Beauty Company Walgreens Boots Alliance Nottingham UK
| | - M Bell
- No7 Beauty Company Walgreens Boots Alliance Nottingham UK
| | - C E M Griffiths
- Centre for Dermatology Research Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences The University of Manchester & Salford Royal NHS Foundation Trust Manchester Academic Health Science Centre UK
| | - A Nicolaou
- Laboratory for Lipidomics and Lipid Biology Division of Pharmacy and Optometry School of Health Sciences Faculty of Biology Medicine and Health University of Manchester Manchester Academic Health Science Centre Manchester M13 9PL UK
| | - R E B Watson
- Centre for Dermatology Research Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences The University of Manchester & Salford Royal NHS Foundation Trust Manchester Academic Health Science Centre UK
| | - S M Pilkington
- Centre for Dermatology Research Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences The University of Manchester & Salford Royal NHS Foundation Trust Manchester Academic Health Science Centre UK
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16
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Charoenchon N, Rhodes LE, Nicolaou A, Williamson G, Watson RE, Farrar MD. Ultraviolet radiation‐induced degradation of dermal extracellular matrix and protection by green tea catechins: a randomised controlled trial. Clin Exp Dermatol 2022; 47:1314-1323. [PMID: 35279873 PMCID: PMC9320810 DOI: 10.1111/ced.15179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/17/2022] [Accepted: 03/11/2022] [Indexed: 11/29/2022]
Abstract
Background Aim Methods Results Conclusions
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Affiliation(s)
- Nisamanee Charoenchon
- Centre for Dermatology Research, Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre Manchester UK
| | - Lesley E. Rhodes
- Centre for Dermatology Research, Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre Manchester UK
- Photobiology Unit, Dermatology Centre, Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre Manchester UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry School of Health Sciences Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre Manchester UK
| | - Gary Williamson
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences Monash University Victoria Australia
| | - Rachel E.B. Watson
- Centre for Dermatology Research, Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre Manchester UK
| | - Mark D. Farrar
- Centre for Dermatology Research, Division of Musculoskeletal and Dermatological Sciences School of Biological Sciences Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre Manchester UK
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17
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Trompette A, Pernot J, Perdijk O, Alqahtani RAA, Domingo JS, Camacho-Muñoz D, Wong NC, Kendall AC, Wiederkehr A, Nicod LP, Nicolaou A, von Garnier C, Ubags NDJ, Marsland BJ. Gut-derived short-chain fatty acids modulate skin barrier integrity by promoting keratinocyte metabolism and differentiation. Mucosal Immunol 2022; 15:908-926. [PMID: 35672452 PMCID: PMC9385498 DOI: 10.1038/s41385-022-00524-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/06/2022] [Accepted: 04/25/2022] [Indexed: 02/07/2023]
Abstract
Barrier integrity is central to the maintenance of healthy immunological homeostasis. Impaired skin barrier function is linked with enhanced allergen sensitization and the development of diseases such as atopic dermatitis (AD), which can precede the development of other allergic disorders, for example, food allergies and asthma. Epidemiological evidence indicates that children suffering from allergies have lower levels of dietary fibre-derived short-chain fatty acids (SCFA). Using an experimental model of AD-like skin inflammation, we report that a fermentable fibre-rich diet alleviates systemic allergen sensitization and disease severity. The gut-skin axis underpins this phenomenon through SCFA production, particularly butyrate, which strengthens skin barrier function by altering mitochondrial metabolism of epidermal keratinocytes and the production of key structural components. Our results demonstrate that dietary fibre and SCFA improve epidermal barrier integrity, ultimately limiting early allergen sensitization and disease development.The Graphical Abstract was designed using Servier Medical Art images ( https://smart.servier.com ).
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Affiliation(s)
- Aurélien Trompette
- grid.8515.90000 0001 0423 4662Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Julie Pernot
- grid.8515.90000 0001 0423 4662Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Olaf Perdijk
- grid.1002.30000 0004 1936 7857Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC Australia
| | - Rayed Ali A. Alqahtani
- grid.5379.80000000121662407Laboratory for Lipidomics and Lipid Biology, University of Manchester, Division of Pharmacy and Optometry, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT UK
| | - Jaime Santo Domingo
- grid.5333.60000000121839049Nestlé Institute of Health, EPFL innovation Park, Lausanne, Switzerland
| | - Dolores Camacho-Muñoz
- grid.5379.80000000121662407Laboratory for Lipidomics and Lipid Biology, University of Manchester, Division of Pharmacy and Optometry, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT UK
| | - Nicholas C. Wong
- grid.1002.30000 0004 1936 7857Monash Bioinformatics Platform, Monash University, Clayton, VIC Australia
| | - Alexandra C. Kendall
- grid.5379.80000000121662407Laboratory for Lipidomics and Lipid Biology, University of Manchester, Division of Pharmacy and Optometry, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT UK
| | - Andreas Wiederkehr
- grid.5333.60000000121839049Nestlé Institute of Health, EPFL innovation Park, Lausanne, Switzerland
| | - Laurent P. Nicod
- Pneumologie, Clinic Cecil from Hirslanden, Lausanne, Switzerland
| | - Anna Nicolaou
- grid.5379.80000000121662407Laboratory for Lipidomics and Lipid Biology, University of Manchester, Division of Pharmacy and Optometry, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT UK
| | - Christophe von Garnier
- grid.8515.90000 0001 0423 4662Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Niki D. J. Ubags
- grid.8515.90000 0001 0423 4662Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Benjamin J. Marsland
- grid.1002.30000 0004 1936 7857Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC Australia
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18
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Borsini A, Nicolaou A, Camacho-Muñoz D, Kendall AC, Di Benedetto MG, Giacobbe J, Su KP, Pariante CM. Omega-3 polyunsaturated fatty acids protect against inflammation through production of LOX and CYP450 lipid mediators: relevance for major depression and for human hippocampal neurogenesis. Mol Psychiatry 2021; 26:6773-6788. [PMID: 34131267 PMCID: PMC8760043 DOI: 10.1038/s41380-021-01160-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 04/29/2021] [Accepted: 05/05/2021] [Indexed: 02/04/2023]
Abstract
Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) can exert antidepressant, anti-inflammatory and neuroprotective properties, but the exact molecular mechanism underlying their effects is still not fully understood. We conducted both in vitro and clinical investigations to test which EPA or DHA metabolites are involved in these anti-inflammatory, neuroprotective and antidepressant effects. In vitro, we used the human hippocampal progenitor cell line HPC0A07/03C, and pre-treated cells with either EPA or DHA, followed by interleukin 1beta (IL1β), IL6 and interferon-alpha (IFN-α). Both EPA and DHA prevented the reduction in neurogenesis and the increase in apoptosis induced by these cytokines; moreover, these effects were mediated by the lipoxygenase (LOX) and cytochrome P450 (CYP450) EPA/DHA metabolites, 5-hydroxyeicosapentaenoic acid (HEPE), 4-hydroxydocosahexaenoic acid (HDHA), 18-HEPE, 20-HDHA, 17(18)-epoxyeicosatetraenoic acid (EpETE) and 19(20)-epoxydocosapentaenoic acid (EpDPA), detected here for the first time in human hippocampal neurones using mass spectrometry lipidomics of the supernatant. In fact, like EPA/DHA, co-treatment with these metabolites prevented cytokines-induced reduction in neurogenesis and apoptosis. Moreover, co-treatment with 17(18)-EpETE and 19(20)-EpDPA and the soluble epoxide hydroxylase (sEH) inhibitor, TPPU (which prevents their conversion into dihydroxyeicosatetraenoic acid (DiHETE)/ dihydroxydocosapentaenoic acid (DiHDPA) metabolites) further enhanced their neurogenic and anti-apoptotic effects. Interestingly, these findings were replicated in a sample of n = 22 patients with a DSM-IV Major Depressive Disorder, randomly assigned to treatment with either EPA (3.0 g/day) or DHA (1.4 g/day) for 12 weeks, with exactly the same LOX and CYP450 lipid metabolites increased in the plasma of these patients following treatment with their precursor, EPA or DHA, and some evidence that higher levels of these metabolites were correlated with less severe depressive symptoms. Overall, our study provides the first evidence for the relevance of LOX- and CYP450-derived EPA/DHA bioactive lipid metabolites as neuroprotective molecular targets for human hippocampal neurogenesis and depression, and highlights the importance of sEH inhibitors as potential therapeutic strategy for patients suffering from depressive symptoms.
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Affiliation(s)
- Alessandra Borsini
- Stress, Psychiatry and Immunology Laboratory, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, King's College London, London, UK.
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Dolores Camacho-Muñoz
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Alexandra C Kendall
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Maria Grazia Di Benedetto
- Stress, Psychiatry and Immunology Laboratory, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, King's College London, London, UK
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio, Fatebenefratelli, Brescia, Italy
| | - Juliette Giacobbe
- Stress, Psychiatry and Immunology Laboratory, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, King's College London, London, UK
| | - Kuan-Pin Su
- Stress, Psychiatry and Immunology Laboratory, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, King's College London, London, UK.
- College of Medicine, China Medical University, Taichung, Taiwan.
- Depression Center, An-Nan Hospital, China Medical University, Tainan, Taiwan.
| | - Carmine M Pariante
- Stress, Psychiatry and Immunology Laboratory, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, King's College London, London, UK
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19
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Camacho-Muñoz D, Kiezel-Tsugunova M, Kiss O, Uddin M, Sundén M, Ryaboshapkina M, Lind L, Oscarsson J, Nicolaou A. Omega-3 carboxylic acids and fenofibrate differentially alter plasma lipid mediators in patients with non-alcoholic fatty liver disease. FASEB J 2021; 35:e21976. [PMID: 34618982 DOI: 10.1096/fj.202100380rrr] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 09/17/2021] [Accepted: 09/21/2021] [Indexed: 12/23/2022]
Abstract
Fibrates and omega-3 polyunsaturated acids are used for the treatment of hypertriglyceridemia but have not demonstrated consistent effects on cardiovascular (CV) risk. In this study, we investigate how these two pharmacological agents influence plasma levels of bioactive lipid mediators, aiming to explore their efficacy beyond that of lipid-lowering agents. Plasma from overweight patients with non-alcoholic fatty liver disease (NAFLD) and hypertriglyceridemia, participating in a randomized placebo-controlled study investigating the effects of 12 weeks treatment with fenofibrate or omega-3 free carboxylic acids (OM-3CA) (200 mg or 4 g per day, respectively), were analyzed for eicosanoids and related PUFA species, N-acylethanolamines (NAE) and ceramides. OM-3CA reduced plasma concentrations of proinflammatory PGE2 , as well as PGE1 , PGD1 and thromboxane B2 but increased prostacyclin, and eicosapentaenoic acid- and docosahexaenoic acid-derived lipids of lipoxygenase and cytochrome P450 monooxygenase (CYP) (e.g., 17-HDHA, 18-HEPE, 19,20-DiHDPA). Fenofibrate reduced plasma concentrations of vasoactive CYP-derived eicosanoids (DHETs). Although OM-3CA increased plasma levels of the NAE docosahexaenoyl ethanolamine and docosapentaenoyl ethanolamine, and fenofibrate increased palmitoleoyl ethanolamine, the effect of both treatments may have been masked by the placebo (olive oil). Fenofibrate was more efficacious than OM-3CA in significantly reducing plasma ceramides, pro-inflammatory lipids associated with CV disease risk. Neither treatment affected putative lipid species associated with NAFLD. Our results show that OM-3CA and fenofibrate differentially modulate the plasma mediator lipidome, with OM-3CA promoting the formation of lipid mediators with potential effects on chronic inflammation, while fenofibrate mainly reducing ceramides. These findings suggest that both treatments could ameliorate chronic inflammation with possible impact on disease outcomes, independent of triglyceride reduction.
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Affiliation(s)
- Dolores Camacho-Muñoz
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Magdalena Kiezel-Tsugunova
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Orsolya Kiss
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Mohib Uddin
- AstraZeneca Gothenburg, Biopharmaceuticals R&D, Mӧlndal, Sweden
| | - Mattias Sundén
- Department of Economics, University of Gothenburg, Gothenburg, Sweden
| | | | - Lars Lind
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Jan Oscarsson
- AstraZeneca Gothenburg, Biopharmaceuticals R&D, Mӧlndal, Sweden
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
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20
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Kucuk S, Niven J, Caamano J, Jones SW, Camacho-Muñoz D, Nicolaou A, Mauro C. Unwrapping the mechanisms of ceramide and fatty acid-initiated signals leading to immune-inflammatory responses in obesity. Int J Biochem Cell Biol 2021; 135:105972. [PMID: 33864951 DOI: 10.1016/j.biocel.2021.105972] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 03/10/2021] [Accepted: 03/31/2021] [Indexed: 02/02/2023]
Abstract
Obesity is considered a global epidemic developed in part as a consequence of the overconsumption of high fat diets. One of the main negative outcomes of obesity is the development of low-grade chronic systemic inflammation, induced by dysregulated immune responses, which can lead to multiple obesity-related diseases. Ceramides are a group of bioactive lipids known to be elevated in obesity and obesity-associated conditions, including cardiovascular disease and type II diabetes. Ceramides may be key players in promoting an obesity-induced inflammatory environment due to their ability to activate key pathways such as Toll-like receptor 4 (TLR4) and NLR pyrin domain containing receptor 3 (Nlrp3), while studies have shown that inhibition of ceramide synthesis gives rise to an anti-inflammatory environment. N-3 polyunsaturated fatty acids (n-3 PUFA) have been of interest due to their anti-inflammatory actions and shown to have beneficial effects in obesity-related diseases. This review will highlight the impact of ceramides in promoting an obesity-induced inflammatory microenvironment and discuss how n-3 PUFA could potentially counteract these responses and have a regulatory effect promoting immune homeostasis.
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Affiliation(s)
- Salih Kucuk
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Jennifer Niven
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Jorge Caamano
- Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Simon W Jones
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Dolores Camacho-Muñoz
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Claudio Mauro
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
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McGurk KA, Keavney BD, Nicolaou A. Circulating ceramides as biomarkers of cardiovascular disease: Evidence from phenotypic and genomic studies. Atherosclerosis 2021; 327:18-30. [PMID: 34004484 DOI: 10.1016/j.atherosclerosis.2021.04.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/25/2021] [Accepted: 04/30/2021] [Indexed: 12/20/2022]
Abstract
There is a need for new biomarkers of atherosclerotic cardiovascular disease (ACVD), the main cause of death globally. Ceramides, a class of potent bioactive lipid mediators, have signalling roles in apoptosis, cellular stress and inflammation. Recent studies have highlighted circulating ceramides as novel biomarkers of coronary artery disease, type-2 diabetes and insulin resistance. Ceramides are highly regulated by enzymatic reactions throughout the body in terms of their activity and metabolism, including production, degradation and transport. The genetic studies that have been completed to date on the main ceramide species found in circulation are described, highlighting the importance of DNA variants in genes involved in ceramide biosynthesis as key influencers of heritable, circulating ceramide levels. We also review studies of disease associations with ceramides and discuss mechanistic insights deriving from recent genomic studies. The signalling activities of ceramides in vascular inflammation and apoptosis, associations between circulating ceramides and coronary artery disease risk, type-2 diabetes and insulin resistance, and the potential importance of ceramides with regard to ACVD risk factors, such as blood pressure, lipoproteins and lifestyle factors, are also discussed.
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Affiliation(s)
- Kathryn A McGurk
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, UK; Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, UK
| | - Bernard D Keavney
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, UK; Manchester Heart Centre, Manchester University NHS Foundation Trust, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, UK; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
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22
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Domi M, Leitson M, Gifford D, Nicolaou A, Sreenivas K, Bishnoi C. The BNT162b2 vaccine is associated with lower new COVID-19 cases in nursing home residents and staff. J Am Geriatr Soc 2021; 69:2079-2089. [PMID: 33955567 PMCID: PMC8242377 DOI: 10.1111/jgs.17224] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 12/17/2022]
Abstract
Background/Objectives The effectiveness of the BNT162b2 vaccine on preventing the spread of COVID‐19 and deaths in nursing homes (NH) is unknown. Design We used zero‐inflated negative binomial mixed effects regressions to model the associations of time since the vaccine clinic ending the week of December 27, 2020 (cohort 1), January 3, 2021 (cohort 2), or January 10, 2021 (cohort 3) controlling for county rate of COVID‐19, bed size, urban location, racial and ethnic census, and level of registered nurses with resident cases and deaths of COVID‐19 and staff cases of COVID‐19. Setting and Participants All 2501 NHs who held a vaccine clinic from the first 17 states to initiate clinics as part of the Pharmacy Partnership for Long‐Term Care Program. Main Outcome(s) and Measure(s) Adjusted Incidence Rate Ratio (IRR) for time in 3, 4, 5, and 6 weeks after the first vaccine clinic for resident cases and deaths of COVID‐19 and staff cases of COVID‐19. Results Resident and staff cases trended downward in all three cohorts following the vaccine clinics. Time following the first clinic at 5 and 6 weeks was consistently associated with fewer resident cases (IRR: 0.68 [95% CI: 0.54–0.84], IRR: 0.64 [95% CI: 0.48–0.86], respectively); resident deaths (IRR: 0.59 [95% CI: 0.45–0.77], IRR: 0.45 [95% CI: 0.31–0.65], respectively); and staff cases (IRR: 0.64 [95% CI: 0.56–0.73], IRR: 0.51 [95% CI: 0.42–0.62], respectively). Other factors associated with fewer resident and staff cases included facilities with less than 50 certified beds and high nurse staffing per resident day (>0.987). Contrary to prior research, higher Hispanic non‐white resident census was associated with fewer resident cases (IRR: 0.42, 95% CI: 0.31–0.56) and deaths (IRR: 0.18, 95% CI: 0.12–0.27). Conclusions The BNT162b2 vaccine is associated with decreased spread of SARS‐CoV‐2 in both residents and staff as well as decreased deaths among residents. See related editorial by Ouslander et al and related articles by Mor et al, Moore et al, and Rudolph et al. in this issue.
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Affiliation(s)
- Marsida Domi
- Center for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA
| | - Michael Leitson
- Center for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA
| | - David Gifford
- Center for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA
| | - Anna Nicolaou
- Center for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA
| | - Kiran Sreenivas
- Center for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA
| | - Courtney Bishnoi
- Center for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA
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McGurk KA, Williams SG, Guo H, Watkins H, Farrall M, Cordell HJ, Nicolaou A, Keavney BD. Heritability and family-based GWAS analyses of the N-acyl ethanolamine and ceramide plasma lipidome. Hum Mol Genet 2021; 30:500-513. [PMID: 33437986 PMCID: PMC8101358 DOI: 10.1093/hmg/ddab002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/25/2020] [Accepted: 12/23/2020] [Indexed: 12/11/2022] Open
Abstract
Signalling lipids of the N-acyl ethanolamine (NAE) and ceramide (CER) classes have emerged as potential biomarkers of cardiovascular disease (CVD). We sought to establish the heritability of plasma NAEs (including the endocannabinoid anandamide) and CERs, to identify common DNA variants influencing the circulating concentrations of the heritable lipids, and assess causality of these lipids in CVD using 2-sample Mendelian randomization (2SMR). Nine NAEs and 16 CERs were analyzed in plasma samples from 999 members of 196 British Caucasian families, using targeted ultra-performance liquid chromatography with tandem mass spectrometry. All lipids were significantly heritable (h2 = 36-62%). A missense variant (rs324420) in the gene encoding the enzyme fatty acid amide hydrolase (FAAH), which degrades NAEs, associated at genome-wide association study (GWAS) significance (P < 5 × 10-8) with four NAEs (DHEA, PEA, LEA and VEA). For CERs, rs680379 in the SPTLC3 gene, which encodes a subunit of the rate-limiting enzyme in CER biosynthesis, associated with a range of species (e.g. CER[N(24)S(19)]; P = 4.82 × 10-27). We observed three novel associations between SNPs at the CD83, SGPP1 and DEGS1 loci, and plasma CER traits (P < 5 × 10-8). 2SMR in the CARDIoGRAMplusC4D cohorts (60 801 cases; 123 504 controls) and in the DIAGRAM cohort (26 488 cases; 83 964 controls), using the genetic instruments from our family-based GWAS, did not reveal association between genetically determined differences in CER levels and CVD or diabetes. Two of the novel GWAS loci, SGPP1 and DEGS1, suggested a casual association between CERs and a range of haematological phenotypes, through 2SMR in the UK Biobank, INTERVAL and UKBiLEVE cohorts (n = 110 000-350 000).
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Affiliation(s)
- Kathryn A McGurk
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9NT, UK
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PG, UK
| | - Simon G Williams
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9NT, UK
| | - Hui Guo
- Division of Population Health, Health Services Research & Primary Care, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, UK
| | - Hugh Watkins
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - Martin Farrall
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - Heather J Cordell
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PG, UK
| | - Bernard D Keavney
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9NT, UK
- Manchester Heart Centre, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
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24
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Mitchell JA, Shala F, Pires MEL, Loy RY, Ravendren A, Benson J, Urquhart P, Nicolaou A, Herschman HR, Kirkby NS. Endothelial cyclooxygenase-1 paradoxically drives local vasoconstriction and atherogenesis despite underpinning prostacyclin generation. Sci Adv 2021; 7:7/12/eabf6054. [PMID: 33741600 PMCID: PMC7978428 DOI: 10.1126/sciadv.abf6054] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/02/2021] [Indexed: 05/03/2023]
Abstract
Endothelial cyclooxygenase-1-derived prostanoids, including prostacyclin, have clear cardioprotective roles associated with their anti-thrombotic potential but have also been suggested to have paradoxical pathological activities within arteries. To date it has not been possible to test the importance of this because no models have been available that separate vascular cyclooxygenase-1 products from those generated elsewhere. Here, we have used unique endothelial-specific cyclooxygenase-1 knockout mice to show that endothelial cyclooxygenase-1 produces both protective and pathological products. Functionally, however, the overall effect of these was to drive pathological responses in the context of both vasoconstriction in vitro and the development of atherosclerosis and vascular inflammation in vivo. These data provide the first demonstration of a pathological role for the vascular cyclooxygenase-1 pathway, highlighting its potential as a therapeutic target. They also emphasize that, across biology, the role of prostanoids is not always predictable due to unique balances of context, products, and receptors.
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Affiliation(s)
- Jane A Mitchell
- Cardio-Respiratory Interface Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - Fisnik Shala
- Cardio-Respiratory Interface Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - Maria Elisa Lopes Pires
- Cardio-Respiratory Interface Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - Rachel Y Loy
- Cardio-Respiratory Interface Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - Andrew Ravendren
- Cardio-Respiratory Interface Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - Joshua Benson
- Cardio-Respiratory Interface Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - Paula Urquhart
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, UK
| | - Harvey R Herschman
- Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles, CA, USA
| | - Nicholas S Kirkby
- Cardio-Respiratory Interface Section, National Heart and Lung Institute, Imperial College London, London, UK.
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Volpato M, Ingram N, Perry SL, Spencer J, Race AD, Marshall C, Hutchinson JM, Nicolaou A, Loadman PM, Coletta PL, Hull MA. Correction to: Cyclooxygenase activity mediates colorectal cancer cell resistance to the omega‑3 polyunsaturated fatty acid eicosapentaenoic acid. Cancer Chemother Pharmacol 2020; 87:879-880. [PMID: 33200275 DOI: 10.1007/s00280-020-04194-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Milene Volpato
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK.
| | - Nicola Ingram
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - Sarah L Perry
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - Jade Spencer
- Institute of Cancer Therapeutics, University of Bradford, Bradford, BD7 1DP, UK
| | - Amanda D Race
- Institute of Cancer Therapeutics, University of Bradford, Bradford, BD7 1DP, UK
| | - Catriona Marshall
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - John M Hutchinson
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, University of Manchester, Manchester, M13 9PT, UK
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, M13 9PT, UK
| | - Paul M Loadman
- Institute of Cancer Therapeutics, University of Bradford, Bradford, BD7 1DP, UK
| | - P Louise Coletta
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - Mark A Hull
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
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26
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Volpato M, Ingram N, Perry SL, Spencer J, Race AD, Marshall C, Hutchinson JM, Nicolaou A, Loadman PM, Coletta PL, Hull MA. Cyclooxygenase activity mediates colorectal cancer cell resistance to the omega-3 polyunsaturated fatty acid eicosapentaenoic acid. Cancer Chemother Pharmacol 2020; 87:173-184. [PMID: 33040178 PMCID: PMC7870614 DOI: 10.1007/s00280-020-04157-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/24/2020] [Indexed: 01/05/2023]
Abstract
Purpose The naturally-occurring omega-3 polyunsaturated fatty acid eicosapentaenoic acid (EPA) is safe, well-tolerated and inexpensive, making it an attractive anti-cancer intervention. However, EPA has only modest anti-colorectal cancer (CRC) activity, when used alone. Both cyclooxygenase (COX) isoforms metabolise EPA and are over-expressed in CRC cells. We investigated whether COX inhibition increases the sensitivity of CRC cells to growth inhibition by EPA. Methods A panel of 18 human and mouse CRC cell lines was used to characterize the differential sensitivity of CRC cells to the growth inhibitory effects of EPA. The effect of CRISPR-Cas9 genetic deletion and pharmacological inhibition of COX-1 and COX-2 on the anti-cancer activity of EPA was determined using in vitro and in vivo models. Results Genetic ablation of both COX isoforms increased sensitivity of CT26 mouse CRC cells to growth inhibition by EPA in vitro and in vivo. The non-selective COX inhibitor aspirin and the selective COX-2 inhibitor celecoxib increased sensitivity of several human and mouse CRC cell lines to EPA in vitro. However, in a MC38 mouse CRC cell tumour model, with dosing that mirrored low-dose aspirin use in humans, thereby producing significant platelet COX-1 inhibition, there was ineffective intra-tumoral COX-2 inhibition by aspirin and no effect on EPA sensitivity of MC38 cell tumours. Conclusion Cyclooxygenase inhibition by non-steroidal anti-inflammatory drugs represents a therapeutic opportunity to augment the modest anti-CRC activity of EPA. However, intra-tumoral COX inhibition is likely to be critical for this drug-nutrient interaction and careful tissue pharmacodynamic profiling is required in subsequent pre-clinical and human studies. Electronic supplementary material The online version of this article (10.1007/s00280-020-04157-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Milene Volpato
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK.
| | - Nicola Ingram
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - Sarah L Perry
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - Jade Spencer
- Institute of Cancer Therapeutics, University of Bradford, Bradford, BD7 1DP, UK
| | - Amanda D Race
- Institute of Cancer Therapeutics, University of Bradford, Bradford, BD7 1DP, UK
| | - Catriona Marshall
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - John M Hutchinson
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, University of Manchester, Manchester, M13 9PT, UK.,Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, M13 9PT, UK
| | - Paul M Loadman
- Institute of Cancer Therapeutics, University of Bradford, Bradford, BD7 1DP, UK
| | - P Louise Coletta
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
| | - Mark A Hull
- Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, UK
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Hawkshaw NJ, Pilkington SM, Murphy SA, Al‐Gazaq N, Farrar MD, Watson REB, Nicolaou A, Rhodes LE. UV radiation recruits CD4 +GATA3 + and CD8 +GATA3 + T cells while altering the lipid microenvironment following inflammatory resolution in human skin in vivo. Clin Transl Immunology 2020; 9:e01104. [PMID: 32257209 PMCID: PMC7114692 DOI: 10.1002/cti2.1104] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/11/2019] [Accepted: 01/01/2020] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVES Solar ultraviolet radiation (UVR) has major adverse effects on human health. While the mechanisms responsible for induction of UVR-induced inflammation are well-documented, the mediation of its resolution and longer-term adaptive homeostasis is unknown. Therefore, we examined the skin immune and lipid profile over time following UVR inflammation. METHODS To investigate the self-resolving events of UVR inflammation in vivo, human skin was exposed to a single pro-inflammatory dose of UVR. Skin biopsies and suction blister fluid were taken at intervals up to 2 weeks post-UVR. The immune infiltrate was quantified by immunohistochemistry, and lipid mediators were profiled by liquid chromatography/mass spectrometry. RESULTS We identified that cellular resolution events including switching of macrophage phenotype apply to human sunburn. However, UVR-induced inflammation in humans involves a post-resolution phase that differs from other experimental models. We demonstrate that 2 weeks after the initiating UVR stimulus, there is considerable immune activity with CD8+GATA3+ T cells maintained in human skin. Our results challenge the dogma of CD4+FOXP3+ T cells being the main effector CD4+ T-cell population following UVR, with CD4+GATA3+ T cells the dominant phenotype. Furthermore, lipid mediators are elevated 14 days post-UVR, demonstrating the skin lipid microenvironment does not revert to the tissue setting occurring prior to UVR exposure. CONCLUSION We have identified for the first time that CD4+GATA3+ and CD8+GATA3+ T-cell subpopulations are recruited to UVR-inflamed human skin, demonstrating discrepancies between the adaptive UVR response in mice and humans. Future strategies to abrogate UVR effects may target these T-cell subpopulations and also the persistent alteration of the lipid microenvironment post-UVR.
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Affiliation(s)
- Nathan J Hawkshaw
- Centre for Dermatology ResearchDivision of Musculoskeletal and Dermatological SciencesFaculty of Biology, Medicine and HealthSchool of Biological SciencesManchester Academic Health Science CentreThe University of Manchester and Salford Royal NHS Foundation TrustManchesterUK
| | - Suzanne M Pilkington
- Centre for Dermatology ResearchDivision of Musculoskeletal and Dermatological SciencesFaculty of Biology, Medicine and HealthSchool of Biological SciencesManchester Academic Health Science CentreThe University of Manchester and Salford Royal NHS Foundation TrustManchesterUK
| | - Sharon A Murphy
- Laboratory for Lipidomics and Lipid BiologyDivision of Pharmacy and OptometryFaculty of Biology Medicine and HealthSchool of Health SciencesThe University of ManchesterManchesterUK
| | - Norah Al‐Gazaq
- Laboratory for Lipidomics and Lipid BiologyDivision of Pharmacy and OptometryFaculty of Biology Medicine and HealthSchool of Health SciencesThe University of ManchesterManchesterUK
| | - Mark D Farrar
- Centre for Dermatology ResearchDivision of Musculoskeletal and Dermatological SciencesFaculty of Biology, Medicine and HealthSchool of Biological SciencesManchester Academic Health Science CentreThe University of Manchester and Salford Royal NHS Foundation TrustManchesterUK
| | - Rachel EB Watson
- Centre for Dermatology ResearchDivision of Musculoskeletal and Dermatological SciencesFaculty of Biology, Medicine and HealthSchool of Biological SciencesManchester Academic Health Science CentreThe University of Manchester and Salford Royal NHS Foundation TrustManchesterUK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid BiologyDivision of Pharmacy and OptometryFaculty of Biology Medicine and HealthSchool of Health SciencesThe University of ManchesterManchesterUK
| | - Lesley E Rhodes
- Centre for Dermatology ResearchDivision of Musculoskeletal and Dermatological SciencesFaculty of Biology, Medicine and HealthSchool of Biological SciencesManchester Academic Health Science CentreThe University of Manchester and Salford Royal NHS Foundation TrustManchesterUK
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Cucchi D, Camacho-Muñoz D, Certo M, Niven J, Smith J, Nicolaou A, Mauro C. Omega-3 polyunsaturated fatty acids impinge on CD4+ T cell motility and adipose tissue distribution via direct and lipid mediator-dependent effects. Cardiovasc Res 2020; 116:1006-1020. [PMID: 31399738 DOI: 10.1093/cvr/cvz208] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 07/16/2019] [Accepted: 08/01/2019] [Indexed: 12/12/2022] Open
Abstract
AIMS Adaptive immunity contributes to the pathogenesis of cardiovascular metabolic disorders (CVMD). The omega-3 polyunsaturated fatty acids (n-3PUFA) are beneficial for cardiovascular health, with potential to improve the dysregulated adaptive immune responses associated with metabolic imbalance. We aimed to explore the mechanisms through which n-3PUFA may alter T cell motility and tissue distribution to promote a less inflammatory environment and improve lymphocyte function in CVMD. METHODS AND RESULTS Using mass spectrometry lipidomics, cellular, biochemical, and in vivo and ex vivo analyses, we investigated how eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), the main n-3PUFA, modify the trafficking patterns of activated CD4+ T cells. In mice subjected to allogeneic immunization, a 3-week n-3PUFA-enriched diet reduced the number of effector memory CD4+ T cells found in adipose tissue, and changed the profiles of eicosanoids, octadecanoids, docosanoids, endocannabinoids, 2-monoacylglycerols, N-acyl ethanolamines, and ceramides, in plasma, lymphoid organs, and fat tissues. These bioactive lipids exhibited differing chemotactic properties when tested in chemotaxis assays with activated CD4+ T cells in vitro. Furthermore, CD4+ T cells treated with EPA and DHA showed a significant reduction in chemokinesis, as assessed by trans-endothelial migration assays, and, when implanted in recipient mice, demonstrated less efficient migration to the inflamed peritoneum. Finally, EPA and DHA treatments reduced the number of polarized CD4+ T cells in vitro, altered the phospholipid composition of membrane microdomains and decreased the activity of small Rho GTPases, Rhoα, and Rac1 instrumental in cytoskeletal dynamics. CONCLUSIONS Our findings suggest that EPA and DHA affect the motility of CD4+ T cells and modify their ability to reach target tissues by interfering with the cytoskeletal rearrangements required for cell migration. This can explain, at least in part, the anti-inflammatory effects of n-3PUFA supporting their potential use in interventions aiming to address adipocyte low-grade inflammation associated with cardiovascular metabolic disease.
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Affiliation(s)
- Danilo Cucchi
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - Dolores Camacho-Muñoz
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PT, UK
| | - Michelangelo Certo
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
| | - Jennifer Niven
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
| | - Joanne Smith
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PT, UK
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PT, UK
| | - Claudio Mauro
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
- Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
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29
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McGurk KA, Dagliati A, Chiasserini D, Lee D, Plant D, Baricevic-Jones I, Kelsall J, Eineman R, Reed R, Geary B, Unwin RD, Nicolaou A, Keavney BD, Barton A, Whetton AD, Geifman N. The use of missing values in proteomic data-independent acquisition mass spectrometry to enable disease activity discrimination. Bioinformatics 2020; 36:2217-2223. [PMID: 31790148 PMCID: PMC7141869 DOI: 10.1093/bioinformatics/btz898] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/14/2019] [Accepted: 11/26/2019] [Indexed: 12/14/2022] Open
Abstract
MOTIVATION Data-independent acquisition mass spectrometry allows for comprehensive peptide detection and relative quantification than standard data-dependent approaches. While less prone to missing values, these still exist. Current approaches for handling the so-called missingness have challenges. We hypothesized that non-random missingness is a useful biological measure and demonstrate the importance of analysing missingness for proteomic discovery within a longitudinal study of disease activity. RESULTS The magnitude of missingness did not correlate with mean peptide concentration. The magnitude of missingness for each protein strongly correlated between collection time points (baseline, 3 months, 6 months; R = 0.95-0.97, confidence interval = 0.94-0.97) indicating little time-dependent effect. This allowed for the identification of proteins with outlier levels of missingness that differentiate between the patient groups characterized by different patterns of disease activity. The association of these proteins with disease activity was confirmed by machine learning techniques. Our novel approach complements analyses on complete observations and other missing value strategies in biomarker prediction of disease activity. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Kathryn A McGurk
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, UK
| | - Arianna Dagliati
- Division of Informatics, Imaging and Data Sciences, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, UK
| | - Davide Chiasserini
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Dave Lee
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Darren Plant
- NIHR Manchester Biomedical Research Centre, Manchester Academic Health Science Centre, Manchester University NHS Foundation Trust, Manchester, UK
| | - Ivona Baricevic-Jones
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Janet Kelsall
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Rachael Eineman
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Rachel Reed
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Bethany Geary
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Richard D Unwin
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, UK
| | - Bernard D Keavney
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK
| | - Anne Barton
- NIHR Manchester Biomedical Research Centre, Manchester Academic Health Science Centre, Manchester University NHS Foundation Trust, Manchester, UK
- Arthritis Research UK Centre for Genetics and Genomics, Centre for Musculoskeletal Research, University of Manchester, Manchester, UK
| | - Anthony D Whetton
- Stoller Biomarker Discovery Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Nophar Geifman
- Division of Informatics, Imaging and Data Sciences, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, UK
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Kwon SY, Massey K, Watson MA, Hussain T, Volpe G, Buckley CD, Nicolaou A, Badenhorst P. Oxidised metabolites of the omega-6 fatty acid linoleic acid activate dFOXO. Life Sci Alliance 2020; 3:3/2/e201900356. [PMID: 31992650 PMCID: PMC6988086 DOI: 10.26508/lsa.201900356] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 12/20/2019] [Accepted: 12/23/2019] [Indexed: 01/04/2023] Open
Abstract
Obesity-induced inflammation, or meta-inflammation, plays key roles in metabolic syndrome and is a significant risk factor in diabetes and cardiovascular disease. To investigate causal links between obesity, meta-inflammation, and insulin signaling we established a Drosophila model to determine how elevated dietary fat and changes in the levels and balance of saturated fatty acids (SFAs) and polyunsaturated fatty acids (PUFAs) influence inflammation. We observe negligible effect of saturated fatty acid on inflammation but marked enhancement or suppression by omega-6 and omega-3 PUFAs, respectively. Using combined lipidomic and genetic analysis, we show omega-6 PUFA enhances meta-inflammation by producing linoleic acid-derived lipid mediator 9-hydroxy-octadecadienoic acid (9-HODE). Transcriptome analysis reveals 9-HODE functions by regulating FOXO family transcription factors. We show 9-HODE activates JNK, triggering FOXO nuclear localisation and chromatin binding. FOXO TFs are important transducers of the insulin signaling pathway that are normally down-regulated by insulin. By activating FOXO, 9-HODE could antagonise insulin signaling providing a molecular conduit linking changes in dietary fatty acid balance, meta-inflammation, and insulin resistance.
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Affiliation(s)
- So Yeon Kwon
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, UK
| | - Karen Massey
- Bradford School of Pharmacy, University of Bradford, Bradford, UK
| | - Mark A Watson
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, UK
| | - Tayab Hussain
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, UK
| | - Giacomo Volpe
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, UK
| | - Christopher D Buckley
- Institute of Inflammation and Ageing, Centre for Translational Inflammation Research, Queen Elizabeth Hospital, Edgbaston, UK.,Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Anna Nicolaou
- Bradford School of Pharmacy, University of Bradford, Bradford, UK.,Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, Manchester, UK
| | - Paul Badenhorst
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, UK
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Cucchi D, Camacho-Muñoz D, Certo M, Pucino V, Nicolaou A, Mauro C. Fatty acids - from energy substrates to key regulators of cell survival, proliferation and effector function. Cell Stress 2019; 4:9-23. [PMID: 31922096 PMCID: PMC6946016 DOI: 10.15698/cst2020.01.209] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
Recent advances in immunology and cancer research show that fatty acids, their metabolism and their sensing have a crucial role in the biology of many different cell types. Indeed, they are able to affect cellular behaviour with great implications for pathophysiology. Both the catabolic and anabolic pathways of fatty acids present us with a number of enzymes, receptors and agonists/antagonists that are potential therapeutic targets, some of which have already been successfully pursued. Fatty acids can affect the differentiation of immune cells, particularly T cells, as well as their activation and function, with important consequences for the balance between anti- and pro-inflammatory signals in immune diseases, such as rheumatoid arthritis, psoriasis, diabetes, obesity and cardiovascular conditions. In the context of cancer biology, fatty acids mainly provide substrates for energy production, which is of crucial importance to meet the energy demands of these highly proliferating cells. Fatty acids can also be involved in a broader transcriptional programme as they trigger signals necessary for tumorigenesis and can confer to cancer cells the ability to migrate and generate distant metastasis. For these reasons, the study of fatty acids represents a new research direction that can generate detailed insight and provide novel tools for the understanding of immune and cancer cell biology, and, more importantly, support the development of novel, efficient and fine-tuned clinical interventions. Here, we review the recent literature focusing on the involvement of fatty acids in the biology of immune cells, with emphasis on T cells, and cancer cells, from sensing and binding, to metabolism and downstream effects in cell signalling.
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Affiliation(s)
- Danilo Cucchi
- Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - Dolores Camacho-Muñoz
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health sciences, The University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PT, UK
| | - Michelangelo Certo
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
| | - Valentina Pucino
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health sciences, The University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PT, UK
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester M13 9PT, UK
| | - Claudio Mauro
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
- Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
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Kendall AC, Pilkington SM, Murphy SA, Del Carratore F, Sunarwidhi AL, Kiezel-Tsugunova M, Urquhart P, Watson REB, Breitling R, Rhodes LE, Nicolaou A. Dynamics of the human skin mediator lipidome in response to dietary ω-3 fatty acid supplementation. FASEB J 2019; 33:13014-13027. [PMID: 31518521 PMCID: PMC6902719 DOI: 10.1096/fj.201901501r] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Nutritional supplementation with fish oil or ω-3 (n-3) polyunsaturated fatty acids (PUFAs) has potential benefits for skin inflammation. Although the differential metabolism of the main n-3PUFA eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) could lead to distinct activities, there are no clinical studies comparing their relative efficacy in human skin. Following a 10-wk oral supplementation of healthy volunteers and using mass spectrometry-based lipidomics, we found that n-3PUFA mainly affected the epidermal mediator lipidome. EPA was more efficient than DHA in reducing production of arachidonic acid–derived lipids, and both n-3PUFA lowered N-acyl ethanolamines. In UV radiation–challenged skin (3 times the minimum erythemal dose), EPA attenuated the production of proinflammatory lipids, whereas DHA abrogated the migration of Langerhans cells, as assessed by immunohistochemistry. Interestingly, n-3PUFA increased the infiltration of CD4+ and CD8+ T cells but did not alter the erythemal response, either the sunburn threshold or the resolution of erythema, as assessed by spectrophotometric hemoglobin index readings. As EPA and DHA differentially impact cutaneous inflammation through changes in the network of epidermal lipids and dendritic and infiltrating immune cells, they should be considered separately when designing interventions for cutaneous disease.—Kendall, A. C., Pilkington, S. M., Murphy, S. A., Del Carratore, F., Sunarwidhi, A. L., Kiezel-Tsugunova, M., Urquhart, P., Watson, R. E. B., Breitling, R., Rhodes, L. E., Nicolaou, A. Dynamics of the human skin mediator lipidome in response to dietary ω-3 fatty acid supplementation.
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Affiliation(s)
- Alexandra C Kendall
- Division of Pharmacy and Optometry, Laboratory for Lipidomics and Lipid Biology, School of Heath Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Suzanne M Pilkington
- Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, United Kingdom.,Salford Royal National Health Service (NHS) Foundation Trust, Centre for Dermatology Research, Manchester Academic Health Science Centre, The University of Manchester, Manchester, United Kingdom
| | - Sharon A Murphy
- Division of Pharmacy and Optometry, Laboratory for Lipidomics and Lipid Biology, School of Heath Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Francesco Del Carratore
- School of Chemistry, Faculty of Science and Engineering, The University of Manchester, Manchester, United Kingdom
| | - Anggit L Sunarwidhi
- Division of Pharmacy and Optometry, Laboratory for Lipidomics and Lipid Biology, School of Heath Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Magdalena Kiezel-Tsugunova
- Division of Pharmacy and Optometry, Laboratory for Lipidomics and Lipid Biology, School of Heath Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Paula Urquhart
- Division of Pharmacy and Optometry, Laboratory for Lipidomics and Lipid Biology, School of Heath Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Rachel E B Watson
- Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, United Kingdom.,Salford Royal National Health Service (NHS) Foundation Trust, Centre for Dermatology Research, Manchester Academic Health Science Centre, The University of Manchester, Manchester, United Kingdom.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, United Kingdom.,National Institute of Health Research Manchester Biomedical Research Centre, Manchester University National Health Service (NHS) Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Rainer Breitling
- School of Chemistry, Faculty of Science and Engineering, The University of Manchester, Manchester, United Kingdom
| | - Lesley E Rhodes
- Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, United Kingdom.,Salford Royal National Health Service (NHS) Foundation Trust, Centre for Dermatology Research, Manchester Academic Health Science Centre, The University of Manchester, Manchester, United Kingdom.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, United Kingdom.,National Institute of Health Research Manchester Biomedical Research Centre, Manchester University National Health Service (NHS) Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Anna Nicolaou
- Division of Pharmacy and Optometry, Laboratory for Lipidomics and Lipid Biology, School of Heath Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, United Kingdom.,National Institute of Health Research Manchester Biomedical Research Centre, Manchester University National Health Service (NHS) Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
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Hawkshaw N, Pilkington S, Murphy S, Kendall A, Watson R, Nicolaou A, Rhodes L. 538 Acute UVR exposure has prolonged impact on eicosanoid and immune profile of healthy human skin in vivo: Implications for resolution biology. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Poolman TM, Gibbs J, Walker AL, Dickson S, Farrell L, Hensman J, Kendall AC, Maidstone R, Warwood S, Loudon A, Rattray M, Bruce IN, Nicolaou A, Ray DW. Rheumatoid arthritis reprograms circadian output pathways. Arthritis Res Ther 2019; 21:47. [PMID: 30728072 PMCID: PMC6366099 DOI: 10.1186/s13075-019-1825-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 01/15/2019] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE We applied systems biology approaches to investigate circadian rhythmicity in rheumatoid arthritis (RA). METHODS We recruited adults (age 16-80 years old) with a clinical diagnosis of RA (active disease [DAS28 > 3.2]). Sleep profiles were determined before inpatient measurements of saliva, serum, and peripheral blood mononuclear leukocytes (PBML). Transcriptome and proteome analyses were carried out by RNA-SEQ and LC-MS/MS. Serum samples were analysed by targeted lipidomics, along with serum from mouse collagen induced-arthritis (CIA). Bioinformatic analysis identified RA-specific gene networks and rhythmic processes differing between healthy and RA. RESULTS RA caused greater time-of-day variation in PBML gene expression, and ex vivo stimulation identified a time-of-day-specific RA transcriptome. We found increased phospho-STAT3 in RA patients, and some targets, including phospho-ATF2, acquired time-of-day variation in RA. Serum ceramides also gained circadian rhythmicity in RA, which was also seen in mouse experimental arthritis, resulting from gain in circadian rhythmicity of hepatic ceramide synthases. CONCLUSION RA drives a gain in circadian rhythmicity, both in immune cells, and systemically. The coupling of distant timing information to ceramide synthesis and joint inflammation points to a systemic re-wiring of the circadian repertoire. Circadian reprogramming in response to chronic inflammation has implications for inflammatory co-morbidities and time-of-day therapeutics.
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Affiliation(s)
- Toryn M Poolman
- Division of Digestion, Endocrinology and Metabolism, The University of Manchester, Manchester, M13 9PT, UK.,NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK and Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, OX37LE, UK
| | - Julie Gibbs
- Division of Digestion, Endocrinology and Metabolism, The University of Manchester, Manchester, M13 9PT, UK
| | - Amy L Walker
- Division of Digestion, Endocrinology and Metabolism, The University of Manchester, Manchester, M13 9PT, UK
| | - Suzanna Dickson
- Division of Digestion, Endocrinology and Metabolism, The University of Manchester, Manchester, M13 9PT, UK
| | - Laura Farrell
- Division of Digestion, Endocrinology and Metabolism, The University of Manchester, Manchester, M13 9PT, UK
| | | | - Alexandra C Kendall
- Laboratory for Lipidomics and Lipid Biology, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9PT, UK.,Specialist Medicine, Central Manchester Foundation Trust, Manchester, M13 9PL, UK
| | - Robert Maidstone
- Division of Digestion, Endocrinology and Metabolism, The University of Manchester, Manchester, M13 9PT, UK
| | - Stacey Warwood
- Biological Mass Spectrometry Core Research Facility, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PT, UK
| | - Andrew Loudon
- Division of Digestion, Endocrinology and Metabolism, The University of Manchester, Manchester, M13 9PT, UK
| | - Magnus Rattray
- Division of Digestion, Endocrinology and Metabolism, The University of Manchester, Manchester, M13 9PT, UK
| | - Ian N Bruce
- Arthritis Research UK Centre for Epidemiology, Centre for Musculoskeletal Research, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK.,NIHR Manchester Musculoskeletal Biomedical Research Unit, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9PT, UK. .,Specialist Medicine, Central Manchester Foundation Trust, Manchester, M13 9PL, UK.
| | - David W Ray
- Division of Digestion, Endocrinology and Metabolism, The University of Manchester, Manchester, M13 9PT, UK. .,NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK and Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, OX37LE, UK.
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Toovey R, Spittle AJ, Nicolaou A, McGinley JL, Harvey AR. Training Two-Wheel Bike Skills in Children with Cerebral Palsy: A Practice Survey of Therapists in Australia. Phys Occup Ther Pediatr 2019; 39:580-597. [PMID: 30880531 DOI: 10.1080/01942638.2019.1585404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Aim: To describe current practices of physiotherapists and occupational therapists when training two-wheel bike skills in children with cerebral palsy (CP) within an International Classification of Functioning, Disability and Health (ICF) framework. Methods: Ninety-five physiotherapists and occupational therapists working with children with CP in Australia completed a customized online survey. Survey questions related to: eligibility, initial assessment, intervention characteristics, and evaluation of effectiveness. Open-ended responses were analyzed using deductive content analysis. Close-ended questions were analyzed using descriptive statistics. The ICF was used as a framework for coding and reporting. Results: Body structure and function factors were most frequently considered in eligibility (56% of observations) and assessment (47%). Activity and participation-related factors were considered more in intervention (42%) and evaluation (75%). While functional training approaches were predominant, intervention characteristics varied markedly. Excepting goal-related tools, few measures were identified for assessment or evaluation of effectiveness. Environmental and personal factors were seldom considered across practice areas. Conclusions: Current two-wheel bike skills training for children with CP in Australia appears highly variable. Development and testing of bike skills-specific outcome measures and interventions and guidance for therapists on consideration of environmental and personal factors are warranted.
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Affiliation(s)
- Rachel Toovey
- Department of Physiotherapy, University of Melbourne , Melbourne , Victoria , Australia.,Neurodisability and Rehabilitation, Murdoch Children's Research Institute , Melbourne , Victoria , Australia
| | - Alicia J Spittle
- Department of Physiotherapy, University of Melbourne , Melbourne , Victoria , Australia.,Victorian Infant Brain Studies, Murdoch Children's Research Institute , Melbourne , Victoria , Australia
| | - Anna Nicolaou
- Department of Physiotherapy, University of Melbourne , Melbourne , Victoria , Australia
| | - Jennifer L McGinley
- Department of Physiotherapy, University of Melbourne , Melbourne , Victoria , Australia
| | - Adrienne R Harvey
- Neurodisability and Rehabilitation, Murdoch Children's Research Institute , Melbourne , Victoria , Australia.,Neurodevelopment and Disability, The Royal Children's Hospital , Melbourne , Victoria , Australia
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Cummings M, Massey KA, Mappa G, Wilkinson N, Hutson R, Munot S, Saidi S, Nugent D, Broadhead T, Wright AI, Barber S, Nicolaou A, Orsi NM. Integrated eicosanoid lipidomics and gene expression reveal decreased prostaglandin catabolism and increased 5-lipoxygenase expression in aggressive subtypes of endometrial cancer. J Pathol 2018; 247:21-34. [PMID: 30168128 DOI: 10.1002/path.5160] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/30/2018] [Accepted: 08/26/2018] [Indexed: 02/06/2023]
Abstract
Eicosanoids comprise a diverse group of bioactive lipids which orchestrate inflammation, immunity, and tissue homeostasis, and whose dysregulation has been implicated in carcinogenesis. Among the various eicosanoid metabolic pathways, studies of their role in endometrial cancer (EC) have very much been confined to the COX-2 pathway. This study aimed to determine changes in epithelial eicosanoid metabolic gene expression in endometrial carcinogenesis; to integrate these with eicosanoid profiles in matched clinical specimens; and, finally, to investigate the prognostic value of candidate eicosanoid metabolic enzymes. Eicosanoids and related mediators were profiled using liquid chromatography-tandem mass spectrometry in fresh frozen normal, hyperplastic, and cancerous (types I and II) endometrial specimens (n = 192). Sample-matched epithelia were isolated by laser capture microdissection and whole genome expression analysis was performed using microarrays. Integration of eicosanoid and gene expression data showed that the accepted paradigm of increased COX-2-mediated prostaglandin production does not apply in EC carcinogenesis. Instead, there was evidence for decreased PGE2 /PGF2α inactivation via 15-hydroxyprostaglandin dehydrogenase (HPGD) in type II ECs. Increased expression of 5-lipoxygenase (ALOX5) mRNA was also identified in type II ECs, together with proportional increases in its product, 5-hydroxyeicosatetraenoic acid (5-HETE). Decreased HPGD and elevated ALOX5 mRNA expression were associated with adverse outcome, which was confirmed by immunohistochemical tissue microarray analysis of an independent series of EC specimens (n = 419). While neither COX-1 nor COX-2 protein expression had prognostic value, low HPGD combined with high ALOX5 expression was associated with the worst overall and progression-free survival. These findings highlight HPGD and ALOX5 as potential therapeutic targets in aggressive EC subtypes. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Michele Cummings
- Department of Pathology and Tumour Biology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Leeds, UK
| | - Karen A Massey
- School of Pharmacy and Centre for Skin Sciences, Bradford School of Pharmacy, School of Life Sciences, University of Bradford, Bradford, UK
| | - Georgia Mappa
- Department of Pathology and Tumour Biology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Leeds, UK
| | - Nafisa Wilkinson
- Department of Cellular Pathology, University College London Hospital NHS Trust, London, UK
| | - Richard Hutson
- Department of Gynaecological Oncology, St James's Institute of Oncology, St James's University Hospital, Leeds, UK
| | - Sarika Munot
- Department of Gynaecological Oncology, St James's Institute of Oncology, St James's University Hospital, Leeds, UK
| | - Sam Saidi
- Department of Obstetrics and Gynaecology, Central Clinical School, University of Sydney, Camperdown, Australia
| | - David Nugent
- Department of Gynaecological Oncology, St James's Institute of Oncology, St James's University Hospital, Leeds, UK
| | - Timothy Broadhead
- Department of Gynaecological Oncology, St James's Institute of Oncology, St James's University Hospital, Leeds, UK
| | - Alexander I Wright
- Department of Pathology and Tumour Biology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Leeds, UK
| | - Stuart Barber
- Department of Statistics, University of Leeds, Leeds, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Nicolas M Orsi
- Department of Pathology and Tumour Biology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Leeds, UK
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Farrar MD, Huq R, Mason S, Nicolaou A, Clarke KA, Dew TP, Williamson G, Watson REB, Rhodes LE. Oral green tea catechins do not provide photoprotection from direct DNA damage induced by higher dose solar simulated radiation: A randomized controlled trial. J Am Acad Dermatol 2018; 78:414-416. [PMID: 29332714 PMCID: PMC5785335 DOI: 10.1016/j.jaad.2017.08.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 07/07/2017] [Accepted: 08/08/2017] [Indexed: 11/25/2022]
Affiliation(s)
- Mark D Farrar
- Centre for Dermatology, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, United Kingdom
| | - Raqib Huq
- Centre for Dermatology, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, United Kingdom
| | - Sarah Mason
- Centre for Dermatology, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, United Kingdom
| | - Anna Nicolaou
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Kayleigh A Clarke
- School of Food Science and Nutrition, University of Leeds, Leeds, United Kingdom
| | - Tristan P Dew
- Department of Health Professions, Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, United Kingdom
| | - Gary Williamson
- School of Food Science and Nutrition, University of Leeds, Leeds, United Kingdom
| | - Rachel E B Watson
- Centre for Dermatology, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, United Kingdom
| | - Lesley E Rhodes
- Centre for Dermatology, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, United Kingdom.
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Newson J, Motwani MP, Kendall AC, Nicolaou A, Muccioli GG, Alhouayek M, Bennett M, Van De Merwe R, James S, De Maeyer RPH, Gilroy DW. Inflammatory Resolution Triggers a Prolonged Phase of Immune Suppression through COX-1/mPGES-1-Derived Prostaglandin E 2. Cell Rep 2018; 20:3162-3175. [PMID: 28954232 PMCID: PMC5639146 DOI: 10.1016/j.celrep.2017.08.098] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/18/2017] [Accepted: 08/28/2017] [Indexed: 01/07/2023] Open
Abstract
Acute inflammation is characterized by granulocyte infiltration followed by efferocytosing mononuclear phagocytes, which pave the way for inflammatory resolution. Until now, it was believed that resolution then leads back to homeostasis, the physiological state tissues experience before inflammation occurred. However, we discovered that resolution triggered a prolonged phase of immune suppression mediated by prostanoids. Specifically, once inflammation was switched off, natural killer cells, secreting interferon γ (IFNγ), infiltrated the post-inflamed site. IFNγ upregulated microsomal prostaglandin E synthase-1 (mPGES-1) alongside cyclo-oxygenase (COX-1) within macrophage populations, resulting in sustained prostaglandin (PG)E2 biosynthesis. Whereas PGE2 suppressed local innate immunity to bacterial infection, it also inhibited lymphocyte function and generated myeloid-derived suppressor cells, the net effect of which was impaired uptake/presentation of exogenous antigens. Therefore, we have defined a sequence of post-resolution events that dampens the propensity to develop autoimmune responses to endogenous antigens at the cost of local tissue infection. Inflammatory resolution triggers T/NK cell infiltration, which synthesizes IFNγ Through IP-10, IFNγ indirectly triggers monocyte-derived macrophage infiltration Macrophages are directly acted upon by IFNγ to make abundant PGE2 PGE2 exerts a phase of post-inflammation immune suppression and tolerance
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Affiliation(s)
- Justine Newson
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, UK
| | - Madhur P Motwani
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, UK
| | - Alexandra C Kendall
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, UK
| | - Anna Nicolaou
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, UK
| | - Giulio G Muccioli
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Av. E. Mounier, 72 (B1.72.01), 1200 Bruxelles, Belgium
| | - Mireille Alhouayek
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Av. E. Mounier, 72 (B1.72.01), 1200 Bruxelles, Belgium
| | - Melanie Bennett
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, UK
| | - Rachel Van De Merwe
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, UK
| | - Sarah James
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, UK
| | - Roel P H De Maeyer
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, UK
| | - Derek W Gilroy
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, UK.
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Kendall AC, Koszyczarek MM, Jones EA, Hart PJ, Towers M, Griffiths CEM, Morris M, Nicolaou A. Lipidomics for translational skin research: A primer for the uninitiated. Exp Dermatol 2018; 27:721-728. [DOI: 10.1111/exd.13558] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Alexandra C. Kendall
- Laboratory for Lipidomics and Lipid Biology; Division of Pharmacy and Optometry; School of Health Sciences; Faculty of Biology, Medicine and Health; University of Manchester; Manchester Academic Health Science Centre; Manchester UK
| | - Marta M. Koszyczarek
- Laboratory for Lipidomics and Lipid Biology; Division of Pharmacy and Optometry; School of Health Sciences; Faculty of Biology, Medicine and Health; University of Manchester; Manchester Academic Health Science Centre; Manchester UK
| | | | | | | | - Christopher E. M. Griffiths
- Dermatology Centre; Salford Royal Hospital; University of Manchester; Manchester Academic Health Science Centre; Manchester UK
| | | | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology; Division of Pharmacy and Optometry; School of Health Sciences; Faculty of Biology, Medicine and Health; University of Manchester; Manchester Academic Health Science Centre; Manchester UK
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Hawkshaw N, Pilkington S, Murphy S, Kendall A, Nicolaou A, Rhodes L. 1134 UVR modulates macrophage recruitment and phenotype in the resolution phase of human skin inflammation in vivo. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Felton SJ, Kendall AC, Almaedani AFM, Urquhart P, Webb AR, Kift R, Vail A, Nicolaou A, Rhodes LE. Serum endocannabinoids and N-acyl ethanolamines and the influence of simulated solar UVR exposure in humans in vivo. Photochem Photobiol Sci 2018; 16:564-574. [PMID: 28138687 DOI: 10.1039/c6pp00337k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solar ultraviolet radiation (UVR) exposure of human skin has beneficial and harmful effects on health, including impact on immune function, inflammation and reportedly mood, but these are not fully elucidated. Since the endocannabinoid system is implicated in many activities including mood alteration, our objective was to (i) determine and quantify circulating levels of a wide range of endocannabinoid and N-acyl ethanolamine (NAE) species (ii) evaluate whether these are modulated by cutaneous UVR exposures, as attained through repeated low level summer sunlight exposure. Wearing goggles to prevent eye exposure, 16 healthy volunteers (23-59 y; 10 light skin, phototype II, and 6 dark skin, phototype V) received the same UVR exposures (1.3 SED, 95% UVA/5% UVB) thrice weekly for 6 weeks, whilst casually dressed to expose ∼35% skin surface area. Blood samples were taken at baseline, days 1, 3 and 5 of week one, then at weekly intervals, and analysed by LC-MS/MS. Eleven endocannabinoids and NAEs were detected and quantified at baseline, with N-palmitoyl ethanolamine the most abundant (30% of total). Levels did not vary according to phototype (p > 0.05), except for the NAE docosapentaenoyl ethanolamide, which was higher in phototype II than V (p = 0.0002). Level of the endocannabinoid, 2-AG, was elevated during the UVR exposure course (p < 0.05 vs. baseline for all subjects; p < 0.01 for each phototype group), with maximum levels reached by week 2-3, while NAE species did not significantly alter. These findings suggest differential involvement of the cutaneous endocannabinoid system in low dose solar UVR responses in humans.
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Affiliation(s)
- Sarah J Felton
- Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, UK.
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Pappas A, Kendall AC, Brownbridge LC, Batchvarova N, Nicolaou A. Seasonal changes in epidermal ceramides are linked to impaired barrier function in acne patients. Exp Dermatol 2018; 27:833-836. [DOI: 10.1111/exd.13499] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2018] [Indexed: 01/01/2023]
Affiliation(s)
| | - Alexandra C. Kendall
- Laboratory for Lipidomics and Lipid Biology; Division of Pharmacy and Optometry; Faculty of Biology, Medicine and Health; School of Health Sciences; The University of Manchester; Manchester Academic Health Science Centre; Manchester UK
| | - Luke C. Brownbridge
- Laboratory for Lipidomics and Lipid Biology; Division of Pharmacy and Optometry; Faculty of Biology, Medicine and Health; School of Health Sciences; The University of Manchester; Manchester Academic Health Science Centre; Manchester UK
| | | | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology; Division of Pharmacy and Optometry; Faculty of Biology, Medicine and Health; School of Health Sciences; The University of Manchester; Manchester Academic Health Science Centre; Manchester UK
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Denecke T, Hildebrandt B, Rühl R, Miersch A, Nicolaou A, Ruf J, Plotkin M, Hänninen EL, Stroszczynski C, Gutberlet M, Langrehr J, Riess H, Ricke J, Amthauer H. Evaluation of patients with liver metastases from colorectal cancer for locally ablative treatment with laser induced thermotherapy. Nuklearmedizin 2018. [DOI: 10.1055/s-0038-1625115] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryPurpose: Before locally ablative treatment of colorectal liver metastases, patients have to be carefully evaluated to decide whether this is the adequate therapy. In this study we determined the value of FDG-PET in comparison to conventional staging procedures. Patients, methods: In 68 consecutive patients referred for laser induced thermotherapy (LITT) of liver metastases from colorectal cancer, pretherapeutic staging with conventional imaging (thoracic and abdominal CT, liver MRI, chest X-ray) and FDG-PET was performed. The examinations were analysed separately and blinded. Based on the staging information, therapeutic decisions were made by an interdisciplinary review board according to a standardized algorithm. The results were compared between conventional imaging and FDG-PET, and were validated by clinical follow up data and histopathology, respectively. Results: On FDG-PET 210 lesions were interpreted as tumour manifestations. 48 of these were not seen on conventional imaging (true positive, n=46). In contrast, 24 lesions were visualized by conventional imaging only (true positive, n=12). Compared to conventional imaging, discrepant findings on FDG-PET led to treatment modifications in 25 patients (37%); these were correct in 20/25 patients. According to the actual treatment course, the inadequate treatment modifications in the remaining 5 patients were avoided by further diagnostic procedures (i.e. biopsies). Conclusion: In the evaluation of patients with known liver metastases from colorectal cancer before LITT, FDG-PET depicts relevant findings subsidiary to conventional imaging and thus is of high value for therapeutic decision making.
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Pilkington S, Al-Gazaq N, Murphy S, Nicolaou A, Rhodes L. 627 A single sunburn influences the immune component of human skin for up to 14 days. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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McGurk K, Nicolaou A, Keavney B. P4249Genetic determinants of biaoctive lipid species in a hypertension cohort. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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McGurk K, Nicolaou A, Keavney B. 141 Heritability and family-based gwas analyses to discover novel lipidomic biomarkers of cardiovascular disease. Heart 2017. [DOI: 10.1136/heartjnl-2017-311726.140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Pilkington SM, Gibbs NK, Costello P, Bennett SP, Massey KA, Friedmann PS, Nicolaou A, Rhodes LE. Effect of oral eicosapentaenoic acid on epidermal Langerhans cell numbers and PGD2production in UVR-exposed human skin: a randomised controlled study. Exp Dermatol 2016; 25:962-968. [DOI: 10.1111/exd.13177] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Suzanne M. Pilkington
- Centre for Dermatology; Institute of Inflammation and Repair; University of Manchester; Manchester UK
| | - Neil K. Gibbs
- Centre for Dermatology; Institute of Inflammation and Repair; University of Manchester; Manchester UK
| | - Patrick Costello
- Centre for Dermatology; Institute of Inflammation and Repair; University of Manchester; Manchester UK
| | - Susan P. Bennett
- Centre for Dermatology; Salford Royal Hospital; Manchester Academic Health Science Centre; Manchester UK
| | - Karen A. Massey
- School of Pharmacy; Faculty of Medical and Human Sciences; University of Manchester; Manchester UK
| | | | - Anna Nicolaou
- School of Pharmacy; Faculty of Medical and Human Sciences; University of Manchester; Manchester UK
| | - Lesley E. Rhodes
- Centre for Dermatology; Institute of Inflammation and Repair; University of Manchester; Manchester UK
- Centre for Dermatology; Salford Royal Hospital; Manchester Academic Health Science Centre; Manchester UK
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O'Brien A, China L, Massey KA, Nicolaou A, Winstanley A, Newson J, Hobbs A, Audzevich T, Gilroy DW. Bile duct-ligated mice exhibit multiple phenotypic similarities to acute decompensation patients despite histological differences. Liver Int 2016; 36:837-46. [PMID: 26012885 PMCID: PMC4869675 DOI: 10.1111/liv.12876] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 05/13/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND & AIMS Patients with decompensated cirrhosis are susceptible to infection. Innate immune dysfunction and development of organ failure are considered to underlie this. A rodent model of liver disease sharing these phenotypic features would assist in vivo study of underlying mechanisms and testing of therapeutics. We evaluated three models to identify which demonstrated the greatest clinical and immunological phenotypic similarity to patients with acutely decompensated (AD) cirrhosis. METHODS We selected Bile Duct Ligation (BDL) rats at 4 weeks, BDL mice at 14 days and Carbon tetrachloride (CCl4 ) mice at 10 weeks (with studies performed 7 days after final CCl4 infection). We examined organ dysfunction, inflammatory response to carrageenan-in-paw, plasma eicosanoid concentrations, macrophage cytokine production and responses to peritoneal infection. RESULTS Bile duct ligation caused sarcopenia, liver, cardiovascular and renal dysfunction whereas CCl4 mice demonstrated no clinical abnormalities. BDL rodents exhibited depressed response to carrageenan-in-paw unlike CCl4 mice. BDL rats have slightly elevated plasma eicosanoid levels and plasma showed partial PGE2 -mediated immune suppression whereas CCl4 mice did not. Plasma NOx was elevated in patients with acute or chronic liver failure (AoCLF) compared to healthy volunteers and BDL rodents but not CCl4 mice. Elevated nitric oxide (NO) via inducible nitric oxide synthase (iNOS) mediates defective leucocyte trafficking in BDL rodent models. CONCLUSIONS We conclude that BDL mice and rats are not simply models of cholestatic liver injury but may be used to study mechanisms underlying poor outcome from infection in AD and have identified elevated NO as a potential mediator of depressed leucocyte trafficking.
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Affiliation(s)
- Alastair O'Brien
- Centre for Clinical Pharmacology and TherapeuticsDivision of MedicineUniversity College LondonLondonUK
| | - Louise China
- Centre for Clinical Pharmacology and TherapeuticsDivision of MedicineUniversity College LondonLondonUK
| | - Karen A. Massey
- Manchester Pharmacy SchoolFaculty of Medical and Human Sciencesthe University of ManchesterManchesterUK
| | - Anna Nicolaou
- Manchester Pharmacy SchoolFaculty of Medical and Human Sciencesthe University of ManchesterManchesterUK
| | - Alison Winstanley
- Department of HistopathologyUniversity College London HospitalsLondonUK
| | - Justine Newson
- Centre for Clinical Pharmacology and TherapeuticsDivision of MedicineUniversity College LondonLondonUK
| | | | - Tatsiana Audzevich
- Centre for Clinical Pharmacology and TherapeuticsDivision of MedicineUniversity College LondonLondonUK
| | - Derek W. Gilroy
- Manchester Pharmacy SchoolFaculty of Medical and Human Sciencesthe University of ManchesterManchesterUK
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Charoenchon N, Rhodes L, Nicolaou A, Williamson G, Farrar M, Watson R. 288 Dietary green tea catechins protect dermal elasic fibers from UV-induced remodeling. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kendall AC, Pilkington SM, Sassano G, Rhodes LE, Nicolaou A. N-Acyl ethanolamide and eicosanoid involvement in irritant dermatitis. Br J Dermatol 2016; 175:163-71. [PMID: 26947140 DOI: 10.1111/bjd.14521] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2016] [Indexed: 12/30/2022]
Abstract
BACKGROUND Sodium lauryl sulfate (SLS) and ultraviolet radiation (UVR) are two commonly encountered cutaneous inflammatory stimuli. Differing histopathological and clinical features implicate involvement of alternative inflammatory pathways; bioactive lipid mediators (eicosanoids, endocannabinoids and sphingolipids) are likely candidates for regulation of the divergent inflammatory responses. OBJECTIVES To assess comprehensively bioactive lipid involvement in SLS- and UVR-induced inflammatory responses, to provide a better understanding of bioactive lipid mediator pathways in irritant inflammation. METHODS Buttock skin from 10 healthy volunteers was treated with two minimal erythema doses of UVR (275-380 nm, peak 305 nm) or an SLS dose optimized for each individual, to produce a comparable, moderate erythema. Punch biopsies were taken 24 h postchallenge and from untreated skin, and separated into dermis and epidermis. Lipids [including 15 prostanoids, 15 hydroxy fatty acids (HFAs), nine endocannabinoids and related N-acyl ethanolamides (NAE), and 21 sphingolipids] were extracted and quantified using liquid chromatography-tandem mass spectrometry. RESULTS Increased epidermal NAE and HFA expression was observed in response to SLS but not UVR-induced low-level inflammation. Significant changes following SLS treatment included augmented levels of NAE, possessing proinflammatory and some reported anti-inflammatory properties, with 3·7-fold (P = 0·02) and threefold (P = 0·01) increased expression of palmitoyl and stearoyl ethanolamides, respectively, in addition to 1·9-fold (P = 0·02) increased expression of 12-hydroxyeicosatetraenoic acid. CONCLUSIONS The differential bioactive lipid upregulation implicates their involvement in skin irritant responses, potentially reflecting roles in inflammatory cell recruitment and subsequent resolution of inflammation, giving scope for new treatment approaches to irritant dermatitis.
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Affiliation(s)
- A C Kendall
- Manchester Pharmacy School, Institute of Inflammation and Repair, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K
| | - S M Pilkington
- Dermatology Centre, Institute of Inflammation and Repair, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K.,Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K
| | - G Sassano
- Safety and Environmental Assurance Centre, Unilever, Sharnbrook, MK44 1LQ, U.K
| | - L E Rhodes
- Dermatology Centre, Institute of Inflammation and Repair, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K.,Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K
| | - A Nicolaou
- Manchester Pharmacy School, Institute of Inflammation and Repair, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K
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