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Ojo JO, Crynen G, Reed JM, Ajoy R, Vallabhaneni P, Algamal M, Leary P, Rafi NG, Mouzon B, Mullan M, Crawford F. Unbiased Proteomic Approach Identifies Unique and Coincidental Plasma Biomarkers in Repetitive mTBI and AD Pathogenesis. Front Aging Neurosci 2018; 10:405. [PMID: 30618712 PMCID: PMC6305374 DOI: 10.3389/fnagi.2018.00405] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 11/26/2018] [Indexed: 12/14/2022] Open
Abstract
The relationship between repetitive mild traumatic brain injury (r-mTBI) and Alzheimer's disease (AD) is well-recognized. However, the precise nature of how r-mTBI leads to or precipitates AD pathogenesis is currently not understood. Plasma biomarkers potentially provide non-invasive tools for detecting neurological changes in the brain, and can reveal overlaps between long-term consequences of r-mTBI and AD. In this study we address this by generating time-dependent molecular profiles of response to r-mTBI and AD pathogenesis in mouse models using unbiased proteomic analyses. To model AD, we used the well-validated hTau and PSAPP(APP/PS1) mouse models that develop age-related tau and amyloid pathological features, respectively, and our well-established model of r-mTBI in C57BL/6 mice. Plasma were collected at different ages (3, 9, and 15 months-old for hTau and PSAPP mice), encompassing pre-, peri- and post-"onset" of the cognitive and neuropathological phenotypes, or at different timepoints after r-mTBI (24 h, 3, 6, 9, and 12 months post-injury). Liquid chromatography/mass spectrometry (LC-MS) approaches coupled with Tandem Mass Tag labeling technology were applied to develop molecular profiles of protein species that were significantly differentially expressed as a consequence of mTBI or AD. Mixed model ANOVA after Benjamini-Hochberg correction, and a stringent cut-off identified 31 proteins significantly changing in r-mTBI groups over time and, when compared with changes over time in sham mice, 13 of these were unique to the injured mice. The canonical pathways predicted to be modulated by these changes were LXR/RXR activation, production of nitric oxide and reactive oxygen species and complement systems. We identified 18 proteins significantly changing in PSAPP mice and 19 proteins in hTau mice compared to their wild-type littermates with aging. Six proteins were found to be significantly regulated in all three models, i.e., r-mTBI, hTau, and PSAPP mice compared to their controls. The top canonical pathways coincidently changing in all three models were LXR/RXR activation, and production of nitric oxide and reactive oxygen species. This work suggests potential biomarkers for TBI and AD pathogenesis and for the overlap between these two, and warrant targeted investigation in human populations. Data are available via ProteomeXchange with identifier PXD010664.
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Affiliation(s)
- Joseph O. Ojo
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- James A. Haley Veterans’ Hospital, Tampa, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Gogce Crynen
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Jon M. Reed
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, United States
| | - Rosa Ajoy
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
| | - Prashanthi Vallabhaneni
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
| | - Moustafa Algamal
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Paige Leary
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
| | - Naomi G. Rafi
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
| | - Benoit Mouzon
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- James A. Haley Veterans’ Hospital, Tampa, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Michael Mullan
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Fiona Crawford
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- James A. Haley Veterans’ Hospital, Tampa, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
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Layne K, Goodman T, Ferro A, Passacquale G. The effect of aspirin on circulating netrin-1 levels in humans is dependent on the inflammatory status of the vascular endothelium. Oncotarget 2017; 8:86548-86555. [PMID: 29156815 PMCID: PMC5689705 DOI: 10.18632/oncotarget.21240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 08/07/2017] [Indexed: 01/19/2023] Open
Abstract
In atherosclerotic animal models, the cyclo-oxygenase (COX)-inhibitor aspirin counteracts downregulation of endothelial-derived netrin-1, thus reducing arterial inflammation. We here explored the effect of aspirin on netrin-1 in healthy subjects undergoing influenza immunisation, which is an established experimental model of inflammation-related endothelial dysfunction. Our data showed that netrin-1 undergoes reduction (-29.25% from baseline; p=0.0017) in the presence of endothelial activation (VCAM-1 rose by 9.98% 2-days post-vaccination; p=0.0022). Aspirin counteracted vaccine-induced endothelial activation and reduction of netrin-1 in a dose-dependent manner (-3.06% and -17.03% from baseline at a dose of 300mg and 75mg respectively; p=0.0465 and p>0.05 vs untreated). Clopidogrel, which was used as a comparator due to its similar anti-platelet activity, also reduced endothelial activation but, unlike aspirin, enhanced netrin-1 levels (+20.96% from baseline; p=0.0033 vs untreated). A correlation analysis incorporating cytokines, hs-CRP, VCAM-1, TXB2 and PGE2, showed that changes in netrin-1 were directly related to PGE2 variations only (r=0.6103; p=0.0002). In a separate population of 40 healthy unimmunised volunteers, 28-day treatment with aspirin 300mg reduced netrin-1 (-18.76% from baseline; p=0.0012) without affecting endothelial markers or hs-CRP; as expected, aspirin suppressed TXB2 and PGE2. Netrin-1 and PGE2 levels were directly related (r=0.358; p=0.0015), but other parameters including TXB2, hs-CRP and endothelial markers, were not. In conclusion, aspirin counteracts downregulation of netrin-1 following endothelial dysfunction due to its anti-inflammatory effect on the activated endothelium. However, inhibition of COX-dependent prostanoids negatively modulates netrin-1 synthesis in healthy subjects, and this could give rise to aspirin-dependent reduction in netrin-1 under steady state conditions.
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Affiliation(s)
- Kerry Layne
- Department of Clinical Pharmacology, BHF Centre of Research Excellence, Cardiovascular Division, King's College London, London, UK
| | - Timothy Goodman
- Department of Clinical Pharmacology, BHF Centre of Research Excellence, Cardiovascular Division, King's College London, London, UK
| | - Albert Ferro
- Department of Clinical Pharmacology, BHF Centre of Research Excellence, Cardiovascular Division, King's College London, London, UK
| | - Gabriella Passacquale
- Department of Clinical Pharmacology, BHF Centre of Research Excellence, Cardiovascular Division, King's College London, London, UK
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Sterba PM, Hamilton RG, Saini SS. Suppression of basophil FcɛRI activation by serum from active chronic idiopathic/spontaneous urticaria (CIU/CSU) subjects. J Invest Dermatol 2015; 135:1454-1456. [PMID: 25885681 PMCID: PMC4402712 DOI: 10.1038/jid.2015.13] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Patricia M Sterba
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Robert G Hamilton
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sarbjit S Saini
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
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Yeager ME, Colvin KL, Everett AD, Stenmark KR, Ivy DD. Plasma proteomics of differential outcome to long-term therapy in children with idiopathic pulmonary arterial hypertension. Proteomics Clin Appl 2012; 6:257-67. [PMID: 22653875 DOI: 10.1002/prca.201100078] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE The prognosis for children with IPAH unresponsive to therapy is poor. We investigated the plasma proteome for a molecular basis of good versus poor outcome to long-term vasodilator therapy. EXPERIMENTAL DESIGN Plasma was collected at baseline or shortly after therapy initiation and following chronic vasodilator therapy, then divided into those with good outcome (n = 8), and those with a poor outcome (n = 7). To identify proteins unique to either outcome, we used differential gel electrophoresis and mass spectrometry. Results were confirmed by commercial enzyme-linked immunosorbent assay. RESULTS Before and after therapy, SAA-4 was 4-fold lower in those with good outcome compared to those with poor outcome, while serum paraoxonase/arylesterase-1 was increased 2-fold in those with good outcome versus poor outcome. After therapy, haptoglobin and hemopexin were 1.45- and 1.8-fold lower, respectively, in those with a good versus poor outcome. Among those with a good outcome, SAP was 1.3-fold lower prior to therapy. CONCLUSIONS AND CLINICAL RELEVANCE SAP and SAA-4 regulate circulating mononuclear phagocytes. As such, they may contribute to the differential response to chronic vasodilator therapy in the context of inflammation in IPAH.
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Affiliation(s)
- Michael E Yeager
- Department of Pediatric Critical Care, University of Colorado Denver, Denver, CO 80045, USA.
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Fischer R, Trudgian DC, Wright C, Thomas G, Bradbury LA, Brown MA, Bowness P, Kessler BM. Discovery of candidate serum proteomic and metabolomic biomarkers in ankylosing spondylitis. Mol Cell Proteomics 2011; 11:M111.013904. [PMID: 21997733 PMCID: PMC3277768 DOI: 10.1074/mcp.m111.013904] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Ankylosing Spondylitis (AS) is a common inflammatory rheumatic disease with a predilection for the axial skeleton, affecting 0.2% of the population. Current diagnostic criteria rely on a composite of clinical and radiological changes, with a mean time to diagnosis of 5 to 10 years. In this study we employed nano liquid-chromatography mass spectrometry analysis to detect and quantify proteins and small compounds including endogenous peptides and metabolites in serum from 18 AS patients and nine healthy individuals. We identified a total of 316 proteins in serum, of which 22 showed significant up- or down-regulation (p < 0.05) in AS patients. Receiver operating characteristic analysis of combined levels of serum amyloid P component and inter-α-trypsin inhibitor heavy chain 1 revealed high diagnostic value for Ankylosing Spondylitis (area under the curve = 0.98). We also depleted individual sera of proteins to analyze endogenous peptides and metabolic compounds. We detected more than 7000 molecular features in patients and healthy individuals. Quantitative MS analysis revealed compound profiles that correlate with the clinical assessment of disease activity. One molecular feature identified as a Vitamin D3 metabolite—(23S,25R)-25-hydroxyvitamin D3 26,23-peroxylactone—was down-regulated in AS. The ratio of this vitamin D metabolite versus vitamin D binding protein serum levels was also altered in AS as compared with controls. These changes may contribute to pathological skeletal changes in AS. Our study is the first example of an integration of proteomic and metabolomic techniques to find new biomarker candidates for the diagnosis of Ankylosing Spondylitis.
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Affiliation(s)
- Roman Fischer
- Henry Wellcome Building for Cellular and Molecular Physiology, Oxford, OX3 7BN, UK
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Liumbruno GM. Proteomics: applications in transfusion medicine. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2008; 6:70-85. [PMID: 18946951 PMCID: PMC2626841 DOI: 10.2450/2008.0038-07] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/02/2007] [Accepted: 12/20/2007] [Indexed: 12/30/2022]
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Vivanco F, Padial L, Darde V, de la Cuesta F, Alvarez-Llamas G, Diaz-Prieto N, Barderas M. Proteomic Biomarkers of Atherosclerosis. Biomark Insights 2008; 3:101-113. [PMID: 19578499 PMCID: PMC2688368 DOI: 10.4137/bmi.s488] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
SUMMARY: Biomarkers provide a powerful approach to understanding the spectrum of cardiovascular diseases. They have application in screening, diagnostic, prognostication, prediction of recurrences and monitoring of therapy. The "omics" tool are becoming very useful in the development of new biomarkers in cardiovascular diseases. Among them, proteomics is especially fitted to look for new proteins in health and disease and is playing a significant role in the development of new diagnostic tools in cardiovascular diagnosis and prognosis. This review provides an overview of progress in applying proteomics to atherosclerosis. First, we describe novel proteins identified analysing atherosclerotic plaques directly. Careful analysis of proteins within the atherosclerotic vascular tissue can provide a repertoire of proteins involved in vascular remodelling and atherogenesis. Second, we discuss recent data concerning proteins secreted by atherosclerotic plaques. The definition of the atheroma plaque secretome resides in that proteins secreted by arteries can be very good candidates of novel biomarkers. Finally we describe proteins that have been differentially expressed (versus controls) by individual cells which constitute atheroma plaques (endothelial cells, vascular smooth muscle cells, macrophages and foam cells) as well as by circulating cells (monocytes, platelets) or novel biomarkers present in plasma.
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Affiliation(s)
- F. Vivanco
- Department of Immunology. Fundación Jiménez Díaz, Madrid, Spain
- Department of Biochemistry and Molecular Biology I, Universidad Complutense, Proteomic Unit, Madrid, Spain
| | - L.R. Padial
- Department of Cardiology. Hospital Virgen de la Salud, SESCAM, Toledo, Spain
| | - V.M. Darde
- Department of Immunology. Fundación Jiménez Díaz, Madrid, Spain
| | - F. de la Cuesta
- Department of Immunology. Fundación Jiménez Díaz, Madrid, Spain
| | | | - Natacha Diaz-Prieto
- Department of Vascular Pathophysiology. Hospital Nacional de Paraplejicos, SESCAM, Toledo, Spain
| | - M.G. Barderas
- Department of Immunology. Fundación Jiménez Díaz, Madrid, Spain
- Department of Vascular Pathophysiology. Hospital Nacional de Paraplejicos, SESCAM, Toledo, Spain
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Matt P, Fu Z, Fu Q, Van Eyk JE. Biomarker discovery: proteome fractionation and separation in biological samples. Physiol Genomics 2008; 33:12-7. [DOI: 10.1152/physiolgenomics.00282.2007] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Proteomics, analogous with genomics, is the analysis of the protein complement present in a cell, organ, or organism at any given time. While the genome provides information about the theoretical status of the cellular proteins, the proteome describes the actual content, which ultimately determines the phenotype. The broad application of proteomic technologies in basic science and clinical medicine has the potential to accelerate our understanding of the molecular mechanisms underlying disease and may facilitate the discovery of new drug targets and diagnostic disease markers. Proteomics is a rapidly developing and changing scientific discipline, and the last 5 yr have seen major advances in the underlying techniques as well as expansion into new applications. Core technologies for the separation of proteins and/or peptides are one- and two-dimensional gel electrophoresis and one- and two-dimensional liquid chromatography, and these are coupled almost exclusively with mass spectrometry. Proteomic studies have shown that the most effective analysis of even simple biological samples requires subfractionation and/or enrichment before protein identification by mass spectrometry. Selection of the appropriate technology or combination of technologies to match the biological questions is essential for maximum coverage of the selected subproteome and to ensure both the full interpretation and the downstream utility of the data. In this review, we describe the current technologies for proteome fractionation and separation of biological samples, based on our lab workflow for biomarker discovery and validation.
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Affiliation(s)
- Peter Matt
- Johns Hopkins Proteomics Center, Johns Hopkins Medicine, Baltimore, Maryland
- Howard Hughes Medical Institute, Johns Hopkins Medicine, Baltimore, Maryland
| | - Zongming Fu
- Johns Hopkins Proteomics Center, Johns Hopkins Medicine, Baltimore, Maryland
| | - Qin Fu
- Johns Hopkins Proteomics Center, Johns Hopkins Medicine, Baltimore, Maryland
| | - Jennifer E. Van Eyk
- Johns Hopkins Proteomics Center, Johns Hopkins Medicine, Baltimore, Maryland
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