101
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Schulte C, Barwari T, Joshi A, Theofilatos K, Zampetaki A, Barallobre-Barreiro J, Singh B, Sörensen NA, Neumann JT, Zeller T, Westermann D, Blankenberg S, Marber M, Liebetrau C, Mayr M. Comparative Analysis of Circulating Noncoding RNAs Versus Protein Biomarkers in the Detection of Myocardial Injury. Circ Res 2019; 125:328-340. [PMID: 31159652 PMCID: PMC6641471 DOI: 10.1161/circresaha.119.314937] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
RATIONALE Noncoding RNAs (ncRNAs), including microRNAs (miRNAs), circular RNAs (circRNAs), and long noncoding RNAs (lncRNAs), are proposed novel biomarkers of myocardial injury. Their release kinetics have not been explored without confounding by heparin nor has their relationship to myocardial protein biomarkers. OBJECTIVE To compare ncRNA types in heparinase-treated samples with established and emerging protein biomarkers for myocardial injury. METHODS AND RESULTS Screening of 158 circRNAs and 21 lncRNAs in human cardiac tissue identified 12 circRNAs and 11 lncRNAs as potential biomarkers with cardiac origin. Eleven miRNAs were included. At low spike-in concentrations of myocardial tissue, significantly higher regression coefficients were observed across ncRNA types compared with cardiac troponins and cMyBP-C (cardiac myosin-binding protein C). Heparinase treatment of serial plasma and serum samples of patients undergoing transcoronary ablation of septal hypertrophy removed spurious correlations between miRNAs in non-heparinase-treated samples. After transcoronary ablation of septal hypertrophy, muscle-enriched miRNAs (miR-1 and miR-133a) showed a steeper and earlier increase than cardiac-enriched miRNAs (miR-499 and miR-208b). Putative cardiac lncRNAs, including LIPCAR (long intergenic noncoding RNA predicting cardiac remodeling and survival), did not rise, refuting a predominant cardiac origin. Cardiac circRNAs remained largely undetectable. In a validation cohort of acute myocardial infarction, receiver operating characteristic curve analysis revealed noninferiority of cardiac-enriched miRNAs, but miRNAs failed to identify cases presenting with low troponin values. cMyBP-C was validated as a biomarker with highly sensitive properties, and the combination of muscle-enriched miRNAs with high-sensitive cardiac troponin T and cMyBP-C returned the highest area under the curve values. CONCLUSIONS In a comparative assessment of ncRNAs and protein biomarkers for myocardial injury, cMyBP-C showed properties as the most sensitive cardiac biomarker while miRNAs emerged as promising candidates to integrate ncRNAs with protein biomarkers. Sensitivity of current miRNA detection is inferior to cardiac proteins but a multibiomarker combination of muscle-enriched miRNAs with cMyBP-C and cardiac troponins could open a new path of integrating complementary characteristics of different biomarker types.
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Affiliation(s)
- Christian Schulte
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (C.S., T.B., A.J., K.T., A.Z., J.B.-B., B.S., M. Mayr).,Department of General and Interventional Cardiology, University Heart Centre Hamburg Eppendorf, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.).,German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg, Luebeck, Kiel, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.)
| | - Temo Barwari
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (C.S., T.B., A.J., K.T., A.Z., J.B.-B., B.S., M. Mayr)
| | - Abhishek Joshi
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (C.S., T.B., A.J., K.T., A.Z., J.B.-B., B.S., M. Mayr).,Bart's Heart Centre, St. Bartholomew's Hospital, West Smithfield, London (A.J.)
| | - Konstantinos Theofilatos
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (C.S., T.B., A.J., K.T., A.Z., J.B.-B., B.S., M. Mayr)
| | - Anna Zampetaki
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (C.S., T.B., A.J., K.T., A.Z., J.B.-B., B.S., M. Mayr)
| | - Javier Barallobre-Barreiro
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (C.S., T.B., A.J., K.T., A.Z., J.B.-B., B.S., M. Mayr)
| | - Bhawana Singh
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (C.S., T.B., A.J., K.T., A.Z., J.B.-B., B.S., M. Mayr)
| | - Nils A Sörensen
- Department of General and Interventional Cardiology, University Heart Centre Hamburg Eppendorf, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.).,German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg, Luebeck, Kiel, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.)
| | - Johannes T Neumann
- Department of General and Interventional Cardiology, University Heart Centre Hamburg Eppendorf, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.).,German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg, Luebeck, Kiel, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.)
| | - Tanja Zeller
- Department of General and Interventional Cardiology, University Heart Centre Hamburg Eppendorf, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.).,German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg, Luebeck, Kiel, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.)
| | - Dirk Westermann
- Department of General and Interventional Cardiology, University Heart Centre Hamburg Eppendorf, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.).,German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg, Luebeck, Kiel, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.)
| | - Stefan Blankenberg
- Department of General and Interventional Cardiology, University Heart Centre Hamburg Eppendorf, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.).,German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg, Luebeck, Kiel, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.)
| | - Michael Marber
- King's British Heart Foundation Centre, King's College London, Guy's and St Thomas' Hospitals, United Kingdom (M. Marber)
| | - Christoph Liebetrau
- Department of Cardiology, Kerckhoff Heart and Thorax Center, Bad Nauheim, Germany and German Centre of Cardiovascular Research (DZHK), Partner Site Rhine-Main, Bad Nauheim, Germany (C.L.)
| | - Manuel Mayr
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (C.S., T.B., A.J., K.T., A.Z., J.B.-B., B.S., M. Mayr)
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102
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Ziegler M, Wang X, Peter K. Platelets in cardiac ischaemia/reperfusion injury: a promising therapeutic target. Cardiovasc Res 2019; 115:1178-1188. [PMID: 30906948 PMCID: PMC6529900 DOI: 10.1093/cvr/cvz070] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 02/01/2019] [Accepted: 03/21/2019] [Indexed: 12/21/2022] Open
Abstract
Acute myocardial infarction (AMI) is the single leading cause of mortality and morbidity worldwide. A key component of AMI therapy is the timely reopening of occluded vessels to prevent further ischaemic damage to the myocardium. However, reperfusion of the ischaemic myocardium can itself trigger reperfusion injury causing up to 50% of the overall infarct size. In recent years, considerable research has been devoted to understanding the pathogenesis of ischaemia/reperfusion (I/R) injury and platelets have emerged as a major contributing factor. This review summarizes the role of platelets in the pathogenesis of I/R injury and highlights the potential of platelet-directed therapeutics to minimize cardiac I/R injury. Activated platelets infiltrate specifically into the ischaemic/reperfused myocardium and contribute to I/R injury by the formation of microthrombi, enhanced platelet-leucocyte aggregation, and the release of potent vasoconstrictor and pro-inflammatory molecules. This review demonstrates the benefits of platelet inhibition beyond their well-described anti-thrombotic effect and highlights the direct cardioprotective role of anti-platelet drugs. In particular, the inhibition of COX, the P2Y12 receptor and the GPIIb/IIIa receptor has demonstrated the potential to attenuate I/R injury. Moreover, targeting of drug candidates or regenerative cells to the activated platelets accumulated within the ischaemic/reperfused myocardium shows remarkable potential to protect the myocardium from I/R injury. Overall, activated platelets play a key role in the pathogenesis of I/R injury. Their direct inhibition as well as their use as epitopes for site-directed therapy is a unique and promising therapeutic approach for the prevention of I/R injury and ultimately the preservation of cardiac function.
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Affiliation(s)
- Melanie Ziegler
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Commercial Road 75, Melbourne, Australia
| | - Xiaowei Wang
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Commercial Road 75, Melbourne, Australia
| | - Karlheinz Peter
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Commercial Road 75, Melbourne, Australia
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103
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Sluijter JPG, Davidson SM, Boulanger CM, Buzás EI, de Kleijn DPV, Engel FB, Giricz Z, Hausenloy DJ, Kishore R, Lecour S, Leor J, Madonna R, Perrino C, Prunier F, Sahoo S, Schiffelers RM, Schulz R, Van Laake LW, Ytrehus K, Ferdinandy P. Extracellular vesicles in diagnostics and therapy of the ischaemic heart: Position Paper from the Working Group on Cellular Biology of the Heart of the European Society of Cardiology. Cardiovasc Res 2019; 114:19-34. [PMID: 29106545 PMCID: PMC5852624 DOI: 10.1093/cvr/cvx211] [Citation(s) in RCA: 248] [Impact Index Per Article: 49.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 11/01/2017] [Indexed: 12/13/2022] Open
Abstract
Extracellular vesicles (EVs)—particularly exosomes and microvesicles (MVs)—are attracting considerable interest in the cardiovascular field as the wide range of their functions is recognized. These capabilities include transporting regulatory molecules including different RNA species, lipids, and proteins through the extracellular space including blood and delivering these cargos to recipient cells to modify cellular activity. EVs powerfully stimulate angiogenesis, and can protect the heart against myocardial infarction. They also appear to mediate some of the paracrine effects of cells, and have therefore been proposed as a potential alternative to cell-based regenerative therapies. Moreover, EVs of different sources may be useful biomarkers of cardiovascular disease identities. However, the methods used for the detection and isolation of EVs have several limitations and vary widely between studies, leading to uncertainties regarding the exact population of EVs studied and how to interpret the data. The number of publications in the exosome and MV field has been increasing exponentially in recent years and, therefore, in this ESC Working Group Position Paper, the overall objective is to provide a set of recommendations for the analysis and translational application of EVs focussing on the diagnosis and therapy of the ischaemic heart. This should help to ensure that the data from emerging studies are robust and repeatable, and optimize the pathway towards the diagnostic and therapeutic use of EVs in clinical studies for patient benefit.
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Affiliation(s)
- Joost Petrus Gerardus Sluijter
- Experimental Cardiology Laboratory, UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, University Utrecht, 3508GA Utrecht, The Netherlands
| | | | | | - Edit Iren Buzás
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary.,MTA-SE Immunoproteogenomics Research Group, Budapest, Hungary
| | - Dominique Paschalis Victor de Kleijn
- Department of Vascular Surgery, UMC Utrecht, Utrecht University, Utrecht, the Netherlands.,Netherlands Heart Institute, Utrecht, the Netherlands
| | - Felix Benedikt Engel
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Zoltán Giricz
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Derek J Hausenloy
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Singapore 169857.,National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609.,Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, Singapore 119228.,The Hatter Cardiovascular Institute, University College London, 67 Chenies Mews, London WC1E 6HX, UK.,The National Institute of Health Research University College London Hospitals Biomedical Research Centre, Research & Development, Maple House 1st floor, 149 Tottenham Court Road, London W1T 7DN, UK.,Department of Cardiology, Barts Heart Centre, St Bartholomew's Hospital, W Smithfield, London EC1A 7BE, UK
| | - Raj Kishore
- Department of Pharmacology, Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Sandrine Lecour
- Hatter Institute for Cardiovascular Research in Africa and Lionel Opie Preclinical Imaging Core Facility, Faculty of Health Sciences, University of Cape Town, South Africa
| | - Jonathan Leor
- Neufeld Cardiac Research Institute, Sackler Faculty of Medicine, Tel-Aviv University, Tel Hashomer, Israel; Tamman Cardiovascular Research Institute, Heart Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Rosalinda Madonna
- Center of Aging Science and Regenerative Medicine, CESI-Met and Institute of Cardiology, "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy.,Department of Internal Medicine, University of Texas Medical School in Houston, TX, USA.,Texas Heart Institute, Houston, TX, USA
| | - Cinzia Perrino
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Fabrice Prunier
- Institut Mitovasc, CHU d'Angers, Université d'Angers, Angers, France
| | - Susmita Sahoo
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ray Michel Schiffelers
- Laboratory Clinical Chemistry and Hematology Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig University of Giessen, Aulweg 129, 35392, Giessen, Germany
| | - Linda Wilhelmina Van Laake
- Division Heart and Lungs, and Hubrecht Institute, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Kirsti Ytrehus
- Cardiovascular Research Group, Department of Medical Biology, UiT The Arctic University of Norway, Tromsø, Norway
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Nagyvárad tér 4, Budapest 1089, Hungary and.,Pharmahungary Group, Szeged, Hungary
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104
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Abstract
Traditional circulating biomarkers play a fundamental role in the diagnosis and prognosis of acute myocardial infarction (AMI). However, they have several limitations. microRNAs (miRs), a class of RNA molecules that do not encode proteins, function directly at the RNA level by inhibiting the translation of messenger RNAs. Due to their significant roles in disease development, they can be used as biomarkers. Accumulating evidence has revealed an attractive role of miRs as biomarkers of AMI and its associated symptoms, including vulnerable atherosclerotic plaques, and their role in disease diagnosis, platelet activation monitoring, and prognostic outcome prediction. This manuscript will highlight the recent updates regarding the involvement of miRs as biomarkers in AMI and emphasize their value in vulnerable atherosclerotic plaque prediction and monitoring of platelet activation.
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105
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Understanding Platelets in Infectious and Allergic Lung Diseases. Int J Mol Sci 2019; 20:ijms20071730. [PMID: 30965568 PMCID: PMC6480134 DOI: 10.3390/ijms20071730] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/02/2019] [Accepted: 04/05/2019] [Indexed: 12/29/2022] Open
Abstract
Emerging evidence suggests that platelets, cytoplasmic fragments derived from megakaryocytes, can no longer be considered just as mediators in hemostasis and coagulation processes, but as key modulators of immunity. Platelets have received increasing attention as the emergence of new methodologies has allowed the characterization of their components and functions in the immune continuum. Platelet activation in infectious and allergic lung diseases has been well documented and associated with bacterial infections reproduced in several animal models of pulmonary bacterial infections. Direct interactions between platelets and bacteria have been associated with increased pulmonary platelet accumulation, whereas bacterial-derived toxins have also been reported to modulate platelet function. Recently, platelets have been found extravascular in the lungs of patients with asthma, and in animal models of allergic lung inflammation. Their ability to interact with immune and endothelial cells and secrete immune mediators makes them one attractive target for biomarker identification that will help characterize their contribution to lung diseases. Here, we present an original review of the last advances in the platelet field with a focus on the contribution of platelets to respiratory infections and allergic-mediated diseases.
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106
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Garabet L, Ghanima W, Rangberg A, Teruel-Montoya R, Martinez C, Lozano ML, Nystrand CF, Bussel JB, Sandset PM, Jonassen CM. Circulating microRNAs in patients with immune thrombocytopenia before and after treatment with thrombopoietin-receptor agonists. Platelets 2019; 31:198-205. [PMID: 30885035 DOI: 10.1080/09537104.2019.1585527] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs involved in the regulation of gene expression. Dysregulated expression of several miRNAs has been found in primary immune thrombocytopenia (ITP) suggesting that miRNAs are likely involved in the pathogenesis of ITP. We aimed to explore the differential expression of miRNAs in patients with ITP before and after starting treatment with thrombopoietin-receptor agonists (TPO-RAs) to clarify their roles in the pathophysiology of ITP, and as potential diagnostic and prognostic markers of this disorder.We performed a profiling study where 179 miRNAs were analyzed in eight ITP patients before and during treatment with TPO-RAs and in eight controls using miRNA PCR panel; 81 miRNAs were differentially expressed in ITP patients compared to controls, and 14 miRNAs showed significant changes during TPO-RA-treatment. Ten miRNAs were selected for validation that was performed in 23 patients and 22 controls using droplet digital PCR. Three miRNAs were found to be differentially expressed in ITP patients before TPO-RA-treatment compared to controls: miR-199a-5p was down-regulated (p = 0.0001), miR-33a-5p (p = 0.0002) and miR-195-5p (p = 0.035) were up-regulated. Treatment with TPO-RAs resulted in changes in six miRNAs including miR-199a-5p (p = 0.001), miR-33a-5p (p = 0.003), miR-382-5p (p = 0.004), miR-92b-3p (p = 0.005), miR-26a-5p (p = 0.008) and miR-221-3p (p = 0.023); while miR-195-5p remained unchanged and significantly higher than in controls, despite the increase in the platelet count, which may indicate its possible role in the pathophysiology of ITP. Regression analysis revealed that pre-treatment levels of miR-199a-5p and miR-221-3p could help to predict platelet response to TPO-RA-treatment. ROC curve analysis showed that the combination of miR-199a-5p and miR-33a-5p could distinguish patients with ITP from controls with AUC of 0.93.This study identifies a number of differentially expressed miRNAs in ITP patients before and after initiation of TPO-RAs with potential roles in the pathophysiology, as well as with a possible utility as diagnostic and prognostic biomarkers. These interesting findings deserve further exploration and validation in future studies.
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Affiliation(s)
- Lamya Garabet
- Multidisciplinary Laboratory Medicine and Medical Biochemistry, Akershus University Hospital, Lørenskog, Norway.,Center for Laboratory Medicine, Østfold Hospital Trust, Grålum, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Waleed Ghanima
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Research, Østfold Hospital Trust, Grålum, Norway.,Department of Medicine, Østfold Hospital Trust, Grålum, Norway
| | - Anbjørg Rangberg
- Center for Laboratory Medicine, Østfold Hospital Trust, Grålum, Norway
| | - Raul Teruel-Montoya
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Universidad de Murcia, IMIB-Arrixaca, Servicio de Hematología y Oncología Médica, Murcia, Spain.,Grupo de investigación CB15/00055 del Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Constantino Martinez
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Universidad de Murcia, IMIB-Arrixaca, Servicio de Hematología y Oncología Médica, Murcia, Spain
| | - Maria Luisa Lozano
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Universidad de Murcia, IMIB-Arrixaca, Servicio de Hematología y Oncología Médica, Murcia, Spain.,Grupo de investigación CB15/00055 del Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | | | - James B Bussel
- Department of Pediatrics, Division of Hematology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Per Morten Sandset
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Haematology, Oslo University Hospital, Oslo, Norway.,Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
| | - Christine M Jonassen
- Center for Laboratory Medicine, Østfold Hospital Trust, Grålum, Norway.,Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
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107
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Miliotis S, Nicolalde B, Ortega M, Yepez J, Caicedo A. Forms of extracellular mitochondria and their impact in health. Mitochondrion 2019; 48:16-30. [PMID: 30771504 DOI: 10.1016/j.mito.2019.02.002] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 11/09/2018] [Accepted: 02/06/2019] [Indexed: 12/15/2022]
Abstract
Mitochondria play an important role as an intracellular energy plant and signaling organelle. However, mitochondria also exist outside cells where they could mediate cell-to-cell communication, repair and serve as an activator of the immune response. Their effects depend on the mitochondrial state or the form in which it is present, either as a whole functional structure as fragments or only as mitochondrial DNA. Herein, we provide evidence of why extracellular mitochondria and their varying forms are considered regenerative factors or pro-inflammatory activators. Understanding these aspects will provide the base of their use in therapy or as a biomarker of disease severity and prognosis.
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Affiliation(s)
- Sophia Miliotis
- Universidad San Francisco de Quito, The Latitude Zero Ecuador Research Initiative, L0ERI, 17-12-841, Ecuador
| | - Bryan Nicolalde
- Universidad San Francisco de Quito, Colegio de Ciencias de la Salud - Hospital de los Valles, Escuela de Medicina, Quito 17-12-841, Ecuador
| | - Mayra Ortega
- Universidad San Francisco de Quito, Colegio de Ciencias Biológicas y Ambientales, Escuela de Biotecnología, Quito 17-12-841, Ecuador; Universidad San Francisco de Quito, Instituto de Investigaciones en Biomedicina, Quito 17-12-841, Ecuador
| | - Jackie Yepez
- Universidad San Francisco de Quito, The Latitude Zero Ecuador Research Initiative, L0ERI, 17-12-841, Ecuador
| | - Andrés Caicedo
- Universidad San Francisco de Quito, Colegio de Ciencias de la Salud - Hospital de los Valles, Escuela de Medicina, Quito 17-12-841, Ecuador; Universidad San Francisco de Quito, Instituto de Investigaciones en Biomedicina, Quito 17-12-841, Ecuador; Mito-Act Research Consortium, Quito, Ecuador; Sistemas Médicos - Universidad San Francisco de Quito, SIME-USFQ, Quito 17-12-841, Ecuador.
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108
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Halushka PV, Goodwin AJ, Halushka MK. Opportunities for microRNAs in the Crowded Field of Cardiovascular Biomarkers. ANNUAL REVIEW OF PATHOLOGY 2019; 14:211-238. [PMID: 30332561 PMCID: PMC6442682 DOI: 10.1146/annurev-pathmechdis-012418-012827] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cardiovascular diseases exist across all developed countries. Biomarkers that can predict or diagnose diseases early in their pathogeneses can reduce their morbidity and mortality in afflicted individuals. microRNAs are small regulatory RNAs that modulate translation and have been identified as potential fluid-based biomarkers across numerous maladies. We describe the current state of cardiovascular disease biomarkers across a range of diseases, including myocardial infarction, acute coronary syndrome, myocarditis, hypertension, heart failure, heart transplantation, aortic stenosis, diabetic cardiomyopathy, atrial fibrillation, and sepsis. We present the current understanding of microRNAs as possible biomarkers in these categories and where their best opportunities exist to enter clinical practice.
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Affiliation(s)
- Perry V Halushka
- Department of Pharmacology, South Carolina Clinical and Translational Research Institute, Medical University of South Carolina, Charleston, South Carolina 29425, USA;
- Department of Medicine, South Carolina Clinical and Translational Research Institute, Medical University of South Carolina, Charleston, South Carolina 29425, USA
| | - Andrew J Goodwin
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Medical University of South Carolina, Charleston, South Carolina 29425, USA;
| | - Marc K Halushka
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA;
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109
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Bär C, Thum T, de Gonzalo-Calvo D. Circulating miRNAs as mediators in cell-to-cell communication. Epigenomics 2019; 11:111-113. [PMID: 30638052 DOI: 10.2217/epi-2018-0183] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Christian Bär
- Institute of Molecular & Translational Therapeutic Strategies (IMTTS), Hannover Medical School, 30625, Hannover, Germany
| | - Thomas Thum
- Institute of Molecular & Translational Therapeutic Strategies (IMTTS), Hannover Medical School, 30625, Hannover, Germany.,National Heart & Lung Institute, Imperial College London, London, SW7 2AZ, UK
| | - David de Gonzalo-Calvo
- Institute of Molecular & Translational Therapeutic Strategies (IMTTS), Hannover Medical School, 30625, Hannover, Germany.,Institute of Biomedical Research of Barcelona (IIBB) - Spanish National Research Council (CSIC), 08036, Barcelona, Spain.,CIBERCV, Institute of Health Carlos III, 28029, Madrid, Spain.,Biomedical Research Institute Sant Pau (IIB Sant Pau), 08025, Barcelona, Spain
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110
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Wang B, Wang LN, Cheng FF, Lv HT, Sun L, Wei DK, Pu Y, Wu J, Hou YY, Wen B, Xu XP, Yan WH. MiR-222-3p in Platelets Serves as a Distinguishing Marker for Early Recognition of Kawasaki Disease. Front Pediatr 2019; 7:237. [PMID: 31316949 PMCID: PMC6611386 DOI: 10.3389/fped.2019.00237] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 05/24/2019] [Indexed: 12/19/2022] Open
Abstract
Kawasaki disease (KD) is an acute vasculitis, which leads to 20% of sufferers developing coronary artery aneurysm in children if not appropriately treated. Therefore, the early diagnosis of KD is essential for alleviating the risk of developing heart disease. MicroRNAs (miRNAs) are a large class of small non-coding RNAs which post-transcriptionally regulate gene expression and have been shown to play critical roles in numerous biological processes and diseases. In this study, we used high-throughput miRNA sequencing and found dozens of miRNAs are highly expressed in platelets. By comparing the miRNA expression profile of platelets of acute KD patients and other febrile patients, miR-222-3p is validated to be significantly upregulated in platelets of acute KD patients. Furthermore, KEGG pathway analysis shows that targets of miR-222-3p are enriched in immune-related signaling pathways. Our study uncovers the potential of miR-222-3p in platelets as biomarker for early diagnosis of Kawasaki disease.
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Affiliation(s)
- Bo Wang
- Internal Medicine-Cardiovascular Department, Children's Hospital of Soochow University, Suzhou, China
| | - Li-Nong Wang
- Internal Medicine-Cardiovascular Department, Children's Hospital of Soochow University, Suzhou, China
| | - Fang-Fang Cheng
- Internal Medicine-Cardiovascular Department, Children's Hospital of Soochow University, Suzhou, China
| | - Hai-Tao Lv
- Internal Medicine-Cardiovascular Department, Children's Hospital of Soochow University, Suzhou, China
| | - Ling Sun
- Internal Medicine-Cardiovascular Department, Children's Hospital of Soochow University, Suzhou, China
| | - Dong-Kai Wei
- QIAGEN (Suzhou) Translational Medicine Co., Ltd., Suzhou, China
| | - Yu Pu
- QIAGEN (Suzhou) Translational Medicine Co., Ltd., Suzhou, China
| | - Jie Wu
- QIAGEN (Suzhou) Translational Medicine Co., Ltd., Suzhou, China
| | - Yuan-Yuan Hou
- QIAGEN (Suzhou) Translational Medicine Co., Ltd., Suzhou, China
| | - Bin Wen
- QIAGEN (Suzhou) Translational Medicine Co., Ltd., Suzhou, China
| | - Xia-Ping Xu
- QIAGEN (Suzhou) Translational Medicine Co., Ltd., Suzhou, China
| | - Wen-Hua Yan
- Internal Medicine-Cardiovascular Department, Children's Hospital of Soochow University, Suzhou, China
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Barwari T, Eminaga S, Mayr U, Lu R, Armstrong PC, Chan MV, Sahraei M, Fernández-Fuertes M, Moreau T, Barallobre-Barreiro J, Lynch M, Yin X, Schulte C, Baig F, Pechlaner R, Langley SR, Zampetaki A, Santer P, Weger M, Plasenzotti R, Schosserer M, Grillari J, Kiechl S, Willeit J, Shah AM, Ghevaert C, Warner TD, Fernández-Hernando C, Suárez Y, Mayr M. Inhibition of profibrotic microRNA-21 affects platelets and their releasate. JCI Insight 2018; 3:123335. [PMID: 30385722 PMCID: PMC6238735 DOI: 10.1172/jci.insight.123335] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 09/26/2018] [Indexed: 12/22/2022] Open
Abstract
Fibrosis is a major contributor to organ disease for which no specific therapy is available. MicroRNA-21 (miR-21) has been implicated in the fibrogenetic response, and inhibitors of miR-21 are currently undergoing clinical trials. Here, we explore how miR-21 inhibition may attenuate fibrosis using a proteomics approach. Transfection of miR-21 mimic or inhibitor in murine cardiac fibroblasts revealed limited effects on extracellular matrix (ECM) protein secretion. Similarly, miR-21–null mouse hearts showed an unaltered ECM composition. Thus, we searched for additional explanations as to how miR-21 might regulate fibrosis. In plasma samples from the community-based Bruneck Study, we found a marked correlation of miR-21 levels with several platelet-derived profibrotic factors, including TGF-β1. Pharmacological miR-21 inhibition with an antagomiR reduced the platelet release of TGF-β1 in mice. Mechanistically, Wiskott-Aldrich syndrome protein, a negative regulator of platelet TGF-β1 secretion, was identified as a direct target of miR-21. miR-21–null mice had lower platelet and leukocyte counts compared with littermate controls but higher megakaryocyte numbers in the bone marrow. Thus, to our knowledge this study reports a previously unrecognized effect of miR-21 inhibition on platelets. The effect of antagomiR-21 treatment on platelet TGF-β1 release, in particular, may contribute to the antifibrotic effects of miR-21 inhibitors. MicroRNA-21 inhibition may convey its therapeutic benefits in fibrosis through its action in bone marrow cells rather than targeting fibroblasts directly.
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Affiliation(s)
- Temo Barwari
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Seda Eminaga
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Ursula Mayr
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Ruifang Lu
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Paul C Armstrong
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Melissa V Chan
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Mahnaz Sahraei
- Department of Comparative Medicine and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Marta Fernández-Fuertes
- Department of Comparative Medicine and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Thomas Moreau
- Department of Haematology, University of Cambridge, National Health Blood Service Centre, Cambridge, United Kingdom
| | | | - Marc Lynch
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Xiaoke Yin
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Christian Schulte
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Ferheen Baig
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Raimund Pechlaner
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - Sarah R Langley
- Duke-NUS Medical School, Singapore.,National Heart Centre Singapore, Singapore
| | - Anna Zampetaki
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | | | - Martin Weger
- Department of Internal Medicine, Bruneck Hospital, Bruneck, Italy
| | - Roberto Plasenzotti
- Medical University of Vienna, Institute of Biomedical Research, Vienna, Austria
| | - Markus Schosserer
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Department of Biotechnology, BOKU - University of Natural Resources and Life Sciences, Vienna, Austria
| | - Johannes Grillari
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Department of Biotechnology, BOKU - University of Natural Resources and Life Sciences, Vienna, Austria
| | - Stefan Kiechl
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - Johann Willeit
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - Ajay M Shah
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Cedric Ghevaert
- Department of Haematology, University of Cambridge, National Health Blood Service Centre, Cambridge, United Kingdom
| | - Timothy D Warner
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Carlos Fernández-Hernando
- Department of Comparative Medicine and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Yajaira Suárez
- Department of Comparative Medicine and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Manuel Mayr
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
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Elia E, Montecucco F, Portincasa P, Sahebkar A, Mollazadeh H, Carbone F. Update on pathological platelet activation in coronary thrombosis. J Cell Physiol 2018; 234:2121-2133. [PMID: 30317596 DOI: 10.1002/jcp.27575] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 09/17/2018] [Indexed: 12/19/2022]
Abstract
Although coronary thrombosis (CT) is integral to cardiovascular outcomes, the underlying pathophysiological mechanisms remain unclear. CT may occur in case of atherosclerotic plaque erosion/rupture, or even after stenting implantation. Platelets (PLT) activation is the keystone of atherothrombosis and depends on many dysregulated elements, including endothelial dysfunction, oxidized lipoproteins, and immune response. Besides the classical view of PLT as an effector of hemostatic response, a new repertoire of PLT activities is emerging. PLT lipidome oxidation is a self-maintaining process which promotes PLT reactivity, coagulation cascade, and inflammatory cell activation. PLT-innate immune cell interaction is also sustained by neutrophil extracellular traps and NLRP3 inflammasome pathways. Other noteworthy emerging mechanisms are implicated in the crosstalk between PLT and surrounding cells. Especially, microvesicles (MVs) released from PLT may extend their signaling network far beyond the classical cell-cell interactions. Moreover, the recognition of noncoding RNA in PLT MVs introduce another layer of complexity in terms of intercellular signaling by a direct regulation of messenger RNA profile and gene expression in the recipient cells. The aim of this narrative review is to update the recent advance in CT and intracoronary stent thrombosis, including causal factors and potential translation of experimental evidence into the clinical setting.
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Affiliation(s)
- Edoardo Elia
- Department of Internal Medicine, First Clinic of Internal Medicine, University of Genoa, Genoa, Italy
| | - Fabrizio Montecucco
- Department of Internal Medicine, First Clinic of Internal Medicine, University of Genoa, Genoa, Italy.,Department of Internal Medicine, First Clinic of Internal Medicine, Ospedale Policlinico San Martino, 10 Largo Benzi, Genoa, Italy.,Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
| | - Piero Portincasa
- Department of Biomedical Sciences and Human Oncology, Clinica Medica "A. Murri," University of Bari Medical School, Bari, Italy
| | - Amirhossein Sahebkar
- Department of Pharmaceutical Biotechnology, Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Mollazadeh
- Department of Physiology and Pharmacology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Federico Carbone
- Department of Internal Medicine, First Clinic of Internal Medicine, University of Genoa, Genoa, Italy
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Maués JHDS, Moreira-Nunes CDFA, Pontes TB, Vieira PCM, Montenegro RC, Lamarão LM, Lima EM, Burbano RMR. Differential Expression Profile of MicroRNAs During Prolonged Storage of Platelet Concentrates As a Quality Measurement Tool in Blood Banks. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2018; 22:653-664. [PMID: 30260743 DOI: 10.1089/omi.2018.0126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Platelet concentrate (PC) is a key blood component, which even in good storage conditions, susceptible to cellular damage over time. Hence, blood banks discard unused PC bags after 5 days of storage. Biomarkers of PC quality are therefore highly sought after in blood bank governance. We used the data (Gene Expression Omnibus: GSE61856) generated with next-generation sequencing to examine the expression profiles of microRNAs (miRNAs) from PCs that were stored for 6 days in a blood bank, that is, 1 day longer than is normally stored PC. We identified the 14 most differentially expressed miRNAs by comparing a control PC on the first day of storage with the PCs on each of the subsequent 5 days of storage from day 1 to 6. In all, we identified nine miRNAs with the downregulated profile (miR-145-5p, miR-150-5p, miR-183-5p, miR-26a-5p, miR-331-3p, miR-338-5p, miR-451a, miR-501-3p, and miR-99b-5p) and five upregulated miRNAs (miR-1304-3p, miR-411-5p, miR-432-5p, miR-668-3p, and miR-939-5p). These miRNAs were validated by real-time quantitative PCR in 100 PC units. As each PC unit is composed of platelets of five individuals, the validation was thus performed in 500 individuals (250 men and 250 women, comprised 18-40 years old adults). The data were analyzed with hierarchical clustering and principal component analysis, which revealed the variation of mean relative expression and the instability of miRNAs half-life on the fourth day of PC storage, which coincides with time of onset of platelet storage lesions. These new observations can usefully inform future decision-making and governance in blood banks concerning PC quality.
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Affiliation(s)
- Jersey Heitor da Silva Maués
- 1 Laboratory of Human Cytogenetics, Institute of Biological Sciences, Federal University of Pará , Belém, Brazil
| | - Caroline de Fátima Aquino Moreira-Nunes
- 1 Laboratory of Human Cytogenetics, Institute of Biological Sciences, Federal University of Pará , Belém, Brazil .,2 Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará , Fortaleza, Brazil
| | | | | | - Raquel Carvalho Montenegro
- 2 Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará , Fortaleza, Brazil
| | - Letícia Martins Lamarão
- 4 Laboratory of Genetics and Molecular Biology, Foundation Center of Hemotherapy and Hematology of Para (HEMOPA) , Belém, Brazil
| | - Eleonidas Moura Lima
- 5 Laboratory of Structural Molecular Biology and Oncogenetics-LBMEO, Department of Molecular Biology, Federal University of Paraíba , Joao Pessoa, Brazil
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Abstract
SIGNIFICANCE Platelets are anucleate blood cells that are involved in hemostasis and thrombosis. Although no longer able to generate ribonucleic acid (RNA) de novo, platelets contain messenger RNA (mRNA), YRNA fragments, and premature microRNAs (miRNAs) that they inherit from megakaryocytes. Recent Advances: Novel sequencing techniques have helped identify the unexpectedly large number of RNA species present in platelets. Throughout their life time, platelets can process the pre-existing pool of premature miRNA to give the fully functional miRNA that can regulate platelet protein expression and function. CRITICAL ISSUES Platelets make a major contribution to the circulating miRNA pool but platelet activation can have major consequences on Dicer levels and thus miRNA maturation, which has implications for studies that are focused on screening-stored platelets. FUTURE DIRECTIONS It will be important to determine the importance of platelets as donors for miRNA-containing microvesicles that can be taken up and processed by other (particularly vascular) cells, thus contributing to homeostasis as well as disease progression. Antioxid. Redox Signal. 29, 902-921.
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Affiliation(s)
- Amro Elgheznawy
- 1 Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University , Frankfurt am Main, Germany .,2 German Center for Cardiovascular Research (DZHK) , Partner site Rhein-Main, Frankfurt am Main, Germany
| | - Ingrid Fleming
- 1 Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University , Frankfurt am Main, Germany .,2 German Center for Cardiovascular Research (DZHK) , Partner site Rhein-Main, Frankfurt am Main, Germany
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The Effects of Andrographis paniculata on Platelet Activity in Healthy Thai Volunteers. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:2458281. [PMID: 30174700 PMCID: PMC6106912 DOI: 10.1155/2018/2458281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 07/24/2018] [Indexed: 01/26/2023]
Abstract
Background. Andrographis paniculata (AP) has been used in Thai traditional medicine to treat various infections, including the common cold and fever. Its bioactive compound, andrographolide, has shown antiplatelet activities in an in vitro study model. Since clinical studies of the effects of AP on the human platelet function have never been reported, we investigated its effect on platelet activity in ten healthy volunteers. Methods. Two grams of AP was taken 3 times within one day. The blood was withdrawn by venipuncture before and 2 and 24 hours after the AP administration to analyze the effects of AP on platelet aggregation, the expression of enzyme cyclooxygenase (COX) mRNA and protein, and TXB2, including P-selectin. Result. Even though there was no significant change in the studied parameters, this study exhibited patient-to-patient variability in platelet function. It was found that ADP-induced platelet aggregation tended to decrease after AP administration, while epinephrine-induced platelet aggregation in females tended to be higher than that in males for the entire study period. Moreover, COX-1 mRNA levels tended to decrease while P-selectin levels tended to rise after AP administration. Conclusion. These controversial results are possibly due to the multifactorial mechanisms of platelet aggregation as well as the multichemical composition of AP. Further study, probably at the molecular level, is needed to unveil the underlying mechanisms of action of AP.
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Kay SD, Carlsen AL, Voss A, Burton M, Diederichsen ACP, Poulsen MK, Heegaard NHH. Associations of circulating cell-free microRNA with vasculopathy and vascular events in systemic lupus erythematosus patients. Scand J Rheumatol 2018; 48:32-41. [DOI: 10.1080/03009742.2018.1450892] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- SD Kay
- Department of Rheumatology, Odense University Hospital, Odense, Denmark
| | - AL Carlsen
- Department of Autoimmunology and Biomarkers, Statens Serum Institut, Copenhagen, Denmark
| | - A Voss
- Department of Rheumatology, Odense University Hospital, Odense, Denmark
| | - M Burton
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, Research Unit and Human Genetics, University of Southern Denmark, Odense, Denmark
| | - ACP Diederichsen
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | - MK Poulsen
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | - NHH Heegaard
- Department of Autoimmunology and Biomarkers, Statens Serum Institut, Copenhagen, Denmark
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
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Circulating miRNA-155 as a Potential Biomarker for Coronary Slow Flow. DISEASE MARKERS 2018; 2018:6345284. [PMID: 30046360 PMCID: PMC6036848 DOI: 10.1155/2018/6345284] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 04/11/2018] [Indexed: 01/08/2023]
Abstract
Objective Recent studies have demonstrated that miRNA-155 is involved in the occurrence and development of atherosclerosis. Furthermore, miRNA-155 has emerged as a new indirect marker for inflammation associated with adverse outcomes in oncology and cardiovascular diseases. This study investigated the correlation between the levels of miRNA-155 and coronary slow flow (CSF). Methods A total of 66 patients with CSF and 66 patients with normal coronary flow were enrolled in this study. Coronary flow velocity was determined using the thrombolysis in myocardial infarction frame count (TFC) method. The plasma levels of miRNA-155 were quantified using real-time quantitative polymerase chain reaction. Results The plasma levels of miRNA-155 were significantly higher in the CSF group compared to the control group (P < 0.05). In addition, miRNA-155 levels were positively correlated with TFC and high-sensitivity C-reactive protein (hs-CRP) levels (P < 0.05 for both parameters). Multivariate linear regression analysis demonstrated that plasma miRNA-155 (OR = 2.384, 95% confidence interval 1.847–3.273, P = 0.032) and hs-CRP (OR = 1.273, 95% confidence interval 1.036–2.253, P = 0.013) were independent predictors for CSF. Using plasma miRNA-155 levels as the test variable, ROC curve analysis indicated that the area under the curve was 0.782 (P < 0.05). Conclusion Patients with CSF have higher plasma levels of miRNA-155, and this may play an important role in the pathogenesis of CSF, and an elevated plasma miRNA-155 level may be a predictor for CSF. A large-scale and multicenter study is required to elucidate the role of miRNA-155 as a potential biomarker for patients with CSF.
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Stępień EŁ, Durak-Kozica M, Kamińska A, Targosz-Korecka M, Libera M, Tylko G, Opalińska A, Kapusta M, Solnica B, Georgescu A, Costa MC, Czyżewska-Buczyńska A, Witkiewicz W, Małecki MT, Enguita FJ. Circulating ectosomes: Determination of angiogenic microRNAs in type 2 diabetes. Am J Cancer Res 2018; 8:3874-3890. [PMID: 30083267 PMCID: PMC6071541 DOI: 10.7150/thno.23334] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 05/03/2018] [Indexed: 12/30/2022] Open
Abstract
Ectosomes (Ects) are a subpopulation of extracellular vesicles formed by the process of plasma membrane shedding. In the present study, we profiled ectosome-specific microRNAs (miRNAs) in patients with type 2 diabetes mellitus (T2DM) and analyzed their pro- and anti-angiogenic potential. Methods: We used different approaches for detecting and enumerating Ects, including atomic force microscopy, cryogenic transmission electron microscopy, and nanoparticle tracking analysis. Furthermore, we used bioinformatics tools to analyze functional data obtained from specific miRNA enrichment signatures during angiogenesis and vasculature development. Results: Levels of miR-193b-3p, miR-199a-3p, miR-20a-3p, miR-26b-5p, miR-30b-5p, miR-30c-5p, miR-374a-5p, miR-409-3p, and miR-95-3p were significantly different between Ects obtained from patients with T2DM and those obtained from healthy controls. Conclusion: Our results showed differences in the abundance of pro- and anti-angiogenic miRNAs in Ects of patients with T2DM, and are suggestive of mechanisms underlying the development of vascular complications due to impaired angiogenesis in such patients.
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Affiliation(s)
| | | | - Manuel Mayr
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
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123
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De Los Reyes-García AM, Arroyo AB, Teruel-Montoya R, Vicente V, Lozano ML, González-Conejero R, Martínez C. MicroRNAs as potential regulators of platelet function and bleeding diatheses. Platelets 2018; 30:803-808. [PMID: 29787683 DOI: 10.1080/09537104.2018.1475635] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Although a growing number of studies suggest that microRNAs (miRNAs) play a relevant role in platelet biology, their implications in bleeding diatheses are starting to be investigated. Indeed, several studies have shown that alterations in the intracellular levels of highly expressed platelet miRNAs provoke a thrombotic phenotype. On the other hand, primary immune thrombocytopenia (ITP), which is considered the hallmark of acquired bleeding disorders, has been recently associated with altered levels of miRNAs in peripheral blood mononuclear cells, plasma, and platelets. In this review, we will focus on miRNAs that may affect the hemostatic and thrombotic functions of platelets, and we will discuss the different studies that have attempted to associate miRNAs with regulatory mechanisms of ITP.
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Affiliation(s)
- Ascensión M De Los Reyes-García
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain
| | - Ana B Arroyo
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain
| | - Raúl Teruel-Montoya
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain.,Red CIBERER CB15/00055 , Murcia , Spain
| | - Vicente Vicente
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain.,Red CIBERER CB15/00055 , Murcia , Spain
| | - María L Lozano
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain.,Red CIBERER CB15/00055 , Murcia , Spain
| | - Rocío González-Conejero
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain
| | - Constantino Martínez
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain
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Arroyo AB, de Los Reyes-García AM, Teruel-Montoya R, Vicente V, González-Conejero R, Martínez C. microRNAs in the haemostatic system: More than witnesses of thromboembolic diseases? Thromb Res 2018; 166:1-9. [PMID: 29649766 DOI: 10.1016/j.thromres.2018.03.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 03/28/2018] [Accepted: 03/30/2018] [Indexed: 12/18/2022]
Abstract
MicroRNAs (miRNAs) are small endogenous RNAs that post-transcriptionally regulate gene expression. In the last few years, these molecules have been implicated in the regulation of haemostasis, and an increasing number of studies have investigated their relationship with the development of thrombosis. In this review, we discuss the latest developments regarding the role of miRNAs in the regulation of platelet function and secondary haemostasis. We also discuss the genetic and environmental factors that regulate miRNAs. Finally, we address the potential use of miRNAs as prognostic and diagnostic tools in thrombosis.
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Affiliation(s)
- Ana B Arroyo
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca, Murcia, Spain
| | - Ascensión M de Los Reyes-García
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca, Murcia, Spain
| | - Raúl Teruel-Montoya
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca, Murcia, Spain; Red CIBERER CB15/00055, Murcia, Spain
| | - Vicente Vicente
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca, Murcia, Spain; Red CIBERER CB15/00055, Murcia, Spain
| | - Rocío González-Conejero
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca, Murcia, Spain.
| | - Constantino Martínez
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca, Murcia, Spain.
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Xia L, Zeng Z, Tang WH. The Role of Platelet Microparticle Associated microRNAs in Cellular Crosstalk. Front Cardiovasc Med 2018; 5:29. [PMID: 29670887 PMCID: PMC5893844 DOI: 10.3389/fcvm.2018.00029] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 03/15/2018] [Indexed: 01/11/2023] Open
Abstract
Platelet is an anucleate cell containing abundant messenger RNAs and microRNAs (miRNAs), and their functional roles in hemostasis and inflammation remain elusive. Accumulating evidence has suggested that platelets can actively transfer RNAs to hepatocytes, vascular cells, macrophages, and tumor cells. The incorporated mRNAs are translated into proteins, and miRNAs were found to regulate the gene expression, resulting in the functional change of the recipient cells. This novel intercellular communication opens up a new avenue for the pathophysiological role of platelet in platelet-associated vascular diseases. Therefore, understanding the underlying mechanism and identification of the platelet miRNAs involved in this biological process would provide novel diagnostic and therapeutic targets for cardiovascular diseases.
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Affiliation(s)
- Luoxing Xia
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - Zhi Zeng
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - Wai Ho Tang
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
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126
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Zhou M, Gao M, Luo Y, Gui R, Ji H. Long non-coding RNA metallothionein 1 pseudogene 3 promotes p2y12 expression by sponging miR-126 to activate platelet in diabetic animal model. Platelets 2018; 30:452-459. [PMID: 29617185 DOI: 10.1080/09537104.2018.1457781] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Platelet hyperaggregation and hypercoagulation are associated with increase of thrombogenic risk, especially in patients with type 2 diabetes (T2D). High activity of P2Y12 receptor is found in T2D patients, exposing such patients to a prothrombotic condition. P2Y12 is a promising target for antiplatelet, but due to P2Y12 receptor constitutive activation, the clinical practical phenomena such as "clopidogrel resistance" are commonly occurring. In this study, we investigate the role of lncRNA on platelet activation. By lncRNA array, we screened thousands of differentially expressed lncRNA in megakaryocytes from T2D patients and confirmed that lncRNA metallothionein 1 pseudogene 3 (MT1P3) was significantly upregulated in megakaryocytes from T2D patients than in healthy controls. And we further investigate the biofunction of MT1P3 on platelet activation and the regulatory mechanism on p2y12. MT1P3 was positively correlated with p2y12 mRNA levels and promoted p2y12 expression by sponging miR-126. Knockdown of MT1P3 by siRNA reduced p2y12 expression, inhibiting platelet activation and aggregation in diabetes animal model. In conclusion, our findings identify MT1P3 as a key regulator in platelet activation by increasing p2y12 expression through sponging miR-126 under T2D condition. These findings may provide a new insight for managing platelet hyperactivity-related diseases.
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Affiliation(s)
- Ming Zhou
- a Department of Hematology , Hunan Provincial People's Hospital, The first affiliated hospital of Hunan normal University , Hunan Province , China
| | - Meng Gao
- b Department of Transfusion , The Third Xiangya Hospital, Central South University , Changsha , China
| | - Yanwei Luo
- b Department of Transfusion , The Third Xiangya Hospital, Central South University , Changsha , China
| | - Rong Gui
- b Department of Transfusion , The Third Xiangya Hospital, Central South University , Changsha , China
| | - Hongwen Ji
- c Department of Anesthesiology , Transfusion Medicine, Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing , China
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127
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Miao X, Rahman MFU, Jiang L, Min Y, Tan S, Xie H, Lee L, Wang M, Malmström RE, Lui WO, Li N. Thrombin-reduced miR-27b attenuates platelet angiogenic activities in vitro via enhancing platelet synthesis of anti-angiogenic thrombospondin-1. J Thromb Haemost 2018; 16:791-801. [PMID: 29442415 DOI: 10.1111/jth.13978] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Indexed: 12/29/2022]
Abstract
Essentials It is unclear if platelet micro-RNAs can regulate de novo protein synthesis of platelets. Platelet de novo protein synthesis of thrombospondin-1 (TSP-1) was induced by thrombin. Thrombin stimulation in vitro altered platelet microRNA profiles, including decreased miR-27b. Decreased miR-27b hampers platelet angiogenic activities via enhancing de novo TSP-1 synthesis. SUMMARY Background Platelets can synthesize proteins upon activation. Platelets contain a number of microRNAs (miRNA) and a fully functional miRNA effector machinery. It is, however, unclear if platelet miRNAs can regulate protein synthesis of platelets, and whether the regulation may produce a physiological impact. Objectives To investigate if and how platelet miRNAs regulate de novo syntheses of angiogenic regulators and subsequently modulate platelet angiogenic activities. Methods and Results Microarray-based miRNA profiling showed that thrombin stimulation in vitro down- or up-regulated a number of platelet miRNAs, both in the total platelet miRNAs and in Ago2-associated miRNAs. Among those altered miRNAs, miR-27b was down-regulated in both the total and Ago2-immunoprecipitated miRNA profiles of platelets, which was confirmed by reverse transcription-quantitative PCR (RT-qPCR). Using western blotting assays, we showed that thrombin induced platelet de novo synthesis of thrombospondin-1, and that the level of thrombospondin-1 synthesis could reach a level of 3-5-fold higher than that before thrombin stimulation. With either the platelet precursor megakaryocyte cell line MEG-01 cells or mature platelets, we demonstrated that transfection of miR-27b mimic, but not the negative control of miRNA mimic, markedly reduced thrombospondin-1 protein levels. The latter subsequently enhanced platelet-dependent endothelial tube formation on matrigel. Conclusions Thrombin stimulation in vitro reduces platelet miR-27b levels that may markedly enhance thrombin-evoked platelet de novo synthesis of thrombospondin-1. Elevation of platelet miR-27b by transfection inhibits thrombospondin-1 synthesis, and subsequently enhances platelet pro-angiogenic activities. Hence, platelet activation-dependent reduction of miR-27b levels may represent a novel negative regulatory mechanism of platelet angiogenic activities.
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Affiliation(s)
- X Miao
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
| | - M F-U Rahman
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
| | - L Jiang
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
- Department of Pathology, Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo, China
| | - Y Min
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
| | - S Tan
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
| | - H Xie
- Department of Oncology-Pathology and Cancer Center Karolinska, Karolinska University Hospital-Solna, Stockholm, Sweden
- School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - L Lee
- Department of Oncology-Pathology and Cancer Center Karolinska, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - M Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - R E Malmström
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pharmacology, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - W-O Lui
- Department of Oncology-Pathology and Cancer Center Karolinska, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - N Li
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pharmacology, Karolinska University Hospital-Solna, Stockholm, Sweden
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128
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Mukai N, Nakayama Y, Murakami S, Tanahashi T, Sessler DI, Ishii S, Ogawa S, Tokuhira N, Mizobe T, Sawa T, Nakajima Y. Potential contribution of erythrocyte microRNA to secondary erythrocytosis and thrombocytopenia in congenital heart disease. Pediatr Res 2018; 83:866-873. [PMID: 29281614 DOI: 10.1038/pr.2017.327] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 12/18/2017] [Indexed: 12/19/2022]
Abstract
BackgroundChildren with cyanotic heart disease develop secondary erythrocytosis and thrombocytopenia via unknown mechanisms. Mature erythrocyte microRNAs may reflect clinical pathologies and cell differentiation processes pre-enucleation. This study evaluated erythrocyte microRNAs in children with cyanotic heart disease.MethodsErythrocyte microRNAs from children with cyanotic and acyanotic heart disease and without cardiac disease were quantified with Ion PGM System (n=10 per group). Differential expression was confirmed by quantitative PCR (qPCR; n=20 per group).ResultsMir-486-3p, mir-486-5p, and mir-155-5p increased in patients with cyanotic heart disease compared with those without heart disease: fold differences (95% confidence interval): mir-486-3p: 1.92 (1.14-3.23), P=0.011; mir-486-5p: 2.27 (1.41-3.65), P<0.001; and mir-155-5p: 1.44 (1.03-2.03), P=0.028. Mir-486-5p was increased, and let-7e-5p and mir-1260a were decreased in patients with acyanotic heart disease compared with those without heart disease: mir-486-5p: 1.66 (1.03-2.66), P=0.035; let-7e-5p: 0.66 (0.44-0.99), P=0.049; and mir-1260a: 0.53 (0.29-0.99), P=0.045.ConclusionSeveral microRNA levels changed in children with cyanotic and acyanotic heart disease. Mir-486-3p and -5p are associated with hematopoietic differentiation. Mir-486-3p regulates the erythroid vs. megakaryocyte lineage fate decision. Mir-155 is a hypoxia-inducible microRNA, whose overexpression inhibits megakaryocyte differentiation. Erythrocyte microRNA expression changes may contribute to erythrocytosis and thrombocytopenia in children with cyanotic heart disease.
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Affiliation(s)
- Nobuhiro Mukai
- Department of Anesthesiology and Intensive Care, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshinobu Nakayama
- Department of Anesthesiology and Intensive Care, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satoshi Murakami
- Life Solution Group, Thermo Fisher Scientific Lifetechnologies, Tokyo, Japan
| | - Toshihito Tanahashi
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Daniel I Sessler
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, Ohio
| | - Sachiyo Ishii
- Department of Anesthesiology and Intensive Care, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satoru Ogawa
- Department of Anesthesiology and Intensive Care, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Natsuko Tokuhira
- Department of Anesthesiology and Intensive Care, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshiki Mizobe
- Department of Anesthesiology and Intensive Care, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Teiji Sawa
- Department of Anesthesiology and Intensive Care, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yasufumi Nakajima
- Department of Anesthesiology and Intensive Care, Kansai Medical University, Osaka, Japan
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129
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Walsh TG, Poole AW. Do platelets promote cardiac recovery after myocardial infarction: roles beyond occlusive ischemic damage. Am J Physiol Heart Circ Physiol 2018; 314:H1043-H1048. [PMID: 29547023 PMCID: PMC6008147 DOI: 10.1152/ajpheart.00134.2018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Our understanding of platelet function has traditionally focused on their roles in physiological hemostasis and pathological thrombosis, with the latter being causative of vessel occlusion and subsequent ischemic damage to various tissues. In particular, numerous in vivo studies have implicated causative roles for platelets in the pathogenesis of ischemia-reperfusion (I/R) injury to the myocardium. However, platelets clearly have more complex pathophysiological roles, particularly as a result of the heterogeneous nature of biologically active cargo secreted from their granules or contained within released microparticles or exosomes. While some of these released mediators amplify platelet activation and thrombosis through autocrine or paracrine amplification pathways, they can also regulate diverse cellular functions within the localized microenvironment and recruit progenitor cells to the damage site to facilitate repair processes. Notably, there is evidence to support cardioprotective roles for platelet mediators during I/R injury. As such, it is becoming more widely appreciated that platelets fulfill a host of physiological and pathological roles beyond our basic understanding. Therefore, the purpose of this perspective is to consider whether platelets, through their released mediators, can assume a paradoxically beneficial role to promote cardiac recovery after I/R injury.
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Affiliation(s)
- Tony G Walsh
- School of Physiology, Pharmacology and Neuroscience, University of Bristol , Bristol , United Kingdom
| | - Alastair W Poole
- School of Physiology, Pharmacology and Neuroscience, University of Bristol , Bristol , United Kingdom
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130
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Abstract
Platelets play a vital role in normal hemostasis to stem blood loss at sites of vascular injury by tethering and adhering to sites of injury, recruiting other platelets and blood cells to the developing clot, releasing vasoactive small molecules and proteins, and assembling and activating plasma coagulation proteins in a tightly regulated temporal and spatial manner. In synchrony with specific end products of coagulation, primarily cross-linked fibrin, a stable thrombus quickly forms. Far beyond physiological hemostasis and pathological thrombosis, emerging evidence supports platelets playing a pivotal role in vascular homeostasis, inflammation, cellular repair, regeneration, and wide range of autocrine and paracrine functions. In essence, platelets play both structural and functional roles as reporters, messengers, and active transporters surveying the vasculature for cues of environmental or developmental stimuli and participating as first responders.1 In this review, we will provide a contemporary perspective of platelet physiology, including fundamental, translational, and clinical constructs that apply directly to human health and disease.
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Affiliation(s)
- Richard C Becker
- From the Heart, Lung and Vascular Institute, University of Cincinnati College of Medicine, OH (R.C.B.); and Gill Heart and Vascular Institute (T.S., S.S.S.) and Lexington VA Medical Center (T.S., S.S.S.), University of Kentucky School of Medicine.
| | - Travis Sexton
- From the Heart, Lung and Vascular Institute, University of Cincinnati College of Medicine, OH (R.C.B.); and Gill Heart and Vascular Institute (T.S., S.S.S.) and Lexington VA Medical Center (T.S., S.S.S.), University of Kentucky School of Medicine
| | - Susan S Smyth
- From the Heart, Lung and Vascular Institute, University of Cincinnati College of Medicine, OH (R.C.B.); and Gill Heart and Vascular Institute (T.S., S.S.S.) and Lexington VA Medical Center (T.S., S.S.S.), University of Kentucky School of Medicine
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131
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Vea A, Llorente-Cortes V, de Gonzalo-Calvo D. Circular RNAs in Blood. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1087:119-130. [PMID: 30259362 DOI: 10.1007/978-981-13-1426-1_10] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent advances in RNA sequencing and bioinformatic analysis have allowed the development of a new research field: circular RNAs (circRNAs). These members of the non-coding transcriptome are generated by backsplicing, which results in a covalently closed, single-stranded RNA molecule. To date, thousands of circRNAs have been identified in different human cell types. CircRNAs are evolutionarily conserved, highly stable, cell-/developmental stage-specific and have longer half-lives compared with linear RNAs. Interestingly, different studies have demonstrated that circRNAs are abundantly expressed in the bloodstream. In this chapter, we review the current knowledge of circRNA biology in blood cells and the cell-free compartment, including extracellular vesicles. The potential clinical application of blood circRNAs in the biomarker and therapy fields is also discussed. Finally, perspectives for future studies are proposed.
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Affiliation(s)
- Angela Vea
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Vicenta Llorente-Cortes
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain.,Institute of Biomedical Research of Barcelona (IIBB) - Spanish National Research Council (CSIC), Barcelona, Spain.,CIBERCV, Institute of Health Carlos III, Madrid, Spain
| | - David de Gonzalo-Calvo
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain. .,Institute of Biomedical Research of Barcelona (IIBB) - Spanish National Research Council (CSIC), Barcelona, Spain. .,CIBERCV, Institute of Health Carlos III, Madrid, Spain.
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132
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Mariner PD, Korst A, Karimpour-Fard A, Stauffer BL, Miyamoto SD, Sucharov CC. Improved Detection of Circulating miRNAs in Serum and Plasma Following Rapid Heat/Freeze Cycling. Microrna 2018; 7:138-147. [PMID: 29658445 PMCID: PMC6198569 DOI: 10.2174/2211536607666180416152112] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 01/31/2018] [Accepted: 04/10/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND The measurement of circulating miRNAs has proven to be a powerful biomarker tool for several disease processes. Current protocols for the detection of miRNAs usually involve an RNA extraction step, requiring a substantial volume of patient serum or plasma to obtain sufficient input material. OBJECTIVE Here, we describe a novel methodology that allows detection of a large number of miRNAs from a small volume of serum or plasma without the need for RNA extraction. METHODS Three μl of serum or plasma was subjected to three cycles of high and low temperatures (heat/freeze cycles) followed by miRNA arrays. RESULTS Our results indicate that miRNA detection following this process is highly reproducible when comparing multiple samples from the same subject. Moreover, this protocol increases the reproducibility of miRNA detection in samples that were previously subjected to multiple freeze-thaw cycles. Importantly, the detection of miRNAs from serum vs. plasma following heat/freeze cycling are highly comparable, indicating that this heat/freeze process effectively eliminates differences in detection between serum and plasma samples that have been reported using other sample preparation methodologies. CONCLUSION We propose that this method is a potent alternative to current RNA extraction protocols, substantially reducing the amount of sample necessary for miRNA detection while simultaneously improving miRNA detection and reproducibility.
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Affiliation(s)
| | | | | | | | | | - Carmen C. Sucharov
- Address correspondence to this author at the Department of Medicine, Division of Cardiology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO 80045, USA; Tel: 303 724 5409; Fax: 303 724 5450; E-mail:
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133
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Cardiovascular Risk Factors and Markers. BIOMATHEMATICAL AND BIOMECHANICAL MODELING OF THE CIRCULATORY AND VENTILATORY SYSTEMS 2018. [PMCID: PMC7123062 DOI: 10.1007/978-3-319-89315-0_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cardiovascular risk is assessed for the prediction and appropriate management of patients using collections of identified risk markers obtained from clinical questionnaire information, concentrations of certain blood molecules (e.g., N-terminal proB-type natriuretic peptide fragment and soluble receptors of tumor-necrosis factor-α and interleukin-2), imaging data using various modalities, and electrocardiographic variables, in addition to traditional risk factors.
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134
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de Freitas RCC, Bortolin RH, Lopes MB, Tamborlin L, Meneguello L, Silbiger VN, Hirata RDC, Hirata MH, Luchessi AD, Luchessi AD. Modulation of miR-26a-5p and miR-15b-5p Exosomal Expression Associated with Clopidogrel-Induced Hepatotoxicity in HepG2 Cells. Front Pharmacol 2017; 8:906. [PMID: 29311920 PMCID: PMC5733064 DOI: 10.3389/fphar.2017.00906] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 11/28/2017] [Indexed: 01/25/2023] Open
Abstract
Clopidogrel is an essential antiplatelet drug used to prevent thrombosis complications associated with atherosclerosis. However, hepatotoxicity is a potential adverse effect related to clopidogrel therapy. Exosome-derived miRNAs may be useful for improved monitoring of drug response and hepatotoxicity risk. In the present study, the expression of several exosomal miRNAs (miR-26a-5p, miR-145-5p, miR-15b-5p, and miR-4701-3p) and cell-derived mRNA targets (PLOD2, SENP5, EIF4G2, HMGA2, STRADB, and TLK1) were evaluated in HepG2 cells treated with clopidogrel (6.25, 12.5, 25, 50, and 100 μM) for 24 and 48 h. Then, clopidogrel cytotoxicity was evaluated by analyzing DNA fragmentation and the cell cycle profile using flow cytometry. Differential expression of exosome-derived miRNAs and cell-derived mRNAs was analyzed by RT-qPCR. Exposure of HepG2 cells to high concentrations of clopidogrel (50 and 100 μM) for 24 h caused significant DNA fragmentation (17.6 and 44.4%, respectively; p < 0.05) and 48 h (26.8 and 48.9%, respectively; p < 0.05), indicating cellular toxicity. Upregulation of miR-26a-5p and downregulation of miR-15b-5p was observed in cells exposed to 100 μM clopidogrel for 24 and 48 h. The miR-26a-5p target mRNAs HMGA2, EIF4G2, STRADB, and SENP5 were downregulated in HepG2 cells following exposure to cytotoxic concentrations of clopidogrel (50 and 100 μM) for 24 h, and HMGA2 levels remained low after 48 h of treatment. TLK1, a target of miR-15b-5p, was downregulated by 50 and 100 μM clopidogrel at 24 h. In conclusion, our results suggest that exposure to high concentrations of clopidogrel modulates the expression of exosomal miR-26a-5p and miR-15b-5p and their target mRNAs in HepG2 cells. Dysregulation of these miRNAs maybe modulate the regulatory pathways involved in clopidogrel-induced liver injury.
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Affiliation(s)
- Renata C Costa de Freitas
- Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Raul H Bortolin
- Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Mariana B Lopes
- Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Letícia Tamborlin
- Laboratory of Biotechnology, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Letícia Meneguello
- Post graduation in Biological Science, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, Brazil
| | - Vivian N Silbiger
- Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Rosario D C Hirata
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Mário H Hirata
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Augusto D Luchessi
- Laboratory of Biotechnology, School of Applied Sciences, University of Campinas, Limeira, Brazil.,Post graduation in Biological Science, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, Brazil
| | - André D Luchessi
- Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Natal, Brazil
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135
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Jiang Z, Ma J, Wang Q, Wu F, Ping J, Ming L. Circulating microRNA expression and their target genes in deep vein thrombosis: A systematic review and bioinformatics analysis. Medicine (Baltimore) 2017; 96:e9330. [PMID: 29390402 PMCID: PMC5815814 DOI: 10.1097/md.0000000000009330] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Clinically, D-dimer is the only established biomarker for the diagnosis of deep vein thrombosis (DVT). However, low specificity discounts its diagnostic value. Several publications have illustrated the differentially expressed circulating microRNAs (miRNAs) and their potential diagnostic values for DVT patients. Therefore, we systematically evaluated present researches and further performed bioinformatics analysis, to provide new insights into the diagnosis and underlying mechanisms of miRNAs in DVT. METHODS Databases PubMed, Web of Science, and Embase were searched from January 2000 to April 2017. Articles on circulating miRNAs expression in DVT were retrieved and reference lists were handpicked. Bioinformatics analysis was conducted for further evaluation. RESULTS Eventually, the eligibility criteria for inclusion in this study were met by 3 articles, which consisted of 13 specially expressed miRNAs and 149 putative target genes. Two representative KEGG pathways, vascular endothelial growth factor and phosphatidylinositol 3'-kinase (PI3K)-Akt signaling pathway, seemed to participate in the regulatory network of thrombosis. CONCLUSIONS Despite the potential diagnostic value and regulation effect, the results of circulating miRNAs used as biomarkers for DVT are not so encouraging. More in-depth and larger sample investigations are needed to explore the diagnostic and therapeutic values of miRNAs for DVT.
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136
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Chen Y, Ding YY, Ren Y, Cao L, Xu QQ, Sun L, Xu MG, Lv HT. Identification of differentially expressed microRNAs in acute Kawasaki disease. Mol Med Rep 2017; 17:932-938. [PMID: 29115644 PMCID: PMC5780174 DOI: 10.3892/mmr.2017.8016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 09/27/2017] [Indexed: 12/13/2022] Open
Abstract
The present study used microarray analysis to screen the plasma expression of microRNAs (miRNAs) in patients with acute Kawasaki disease (KD) and aimed to explore the pathogenesis of KD. Plasma was collected from children with acute KD (n=6) and from healthy control children (n=6). Total RNA was extracted and differential miRNA expression between the two groups was determined. Differentially expressed miRNAs were validated using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) in an independent cohort (n=8). Target genes of the differentially expressed miRNAs were predicted and analyzed for gene ontology term enrichment and Kyoto Encyclopedia of Genes and Genomes pathways. miRNA microarray analysis revealed that seven miRNAs (miRs) were significantly upregulated (hsa-let-7b-5p, hsa-miR-223-3p, hsa-miR-4485, hsa-miR-4644, hsa-miR-4800-5p, hsa-miR-6510-5p and hsa-miR-765) and three were significantly downregulated (hsa-miR-33b-3p, hsa-miR-4443 and hsa-miR-4515) in acute KD compared with the healthy controls. hsa-miR-223-3p expression levels detected by RT-qPCR were consistent with the microarray results. A total of 62 target genes of hsa-miR-223-3p were predicted. In total, 10 differentially expressed miRNAs were identified in acute KD, of which hsa-miR-223-3p was verified by RT-qPCR.
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Affiliation(s)
- Ye Chen
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Yue-Yue Ding
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Yan Ren
- Radiology Department, Fudan University Affiliated Huashan Hospital, Shanghai 200040, P.R. China
| | - Lei Cao
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Qiu-Qin Xu
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Ling Sun
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Ming-Guo Xu
- Cardiovascular Center, Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, P.R. China
| | - Hai-Tao Lv
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
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137
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Bär C, Thum T. A long way for microRNAs to become meaningful prognostic biomarkers. Eur J Heart Fail 2017; 20:76-77. [PMID: 29044870 DOI: 10.1002/ejhf.1036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 09/13/2017] [Indexed: 11/08/2022] Open
Affiliation(s)
- Christian Bär
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany.,National Heart and Lung Institute, Imperial College London, UK.,REBIRTH Excellence Cluster, Hannover Medical School, Hannover, Germany
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138
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Milasan A, Jean G, Dallaire F, Tardif JC, Merhi Y, Sorci-Thomas M, Martel C. Apolipoprotein A-I Modulates Atherosclerosis Through Lymphatic Vessel-Dependent Mechanisms in Mice. J Am Heart Assoc 2017; 6:JAHA.117.006892. [PMID: 28939717 PMCID: PMC5634311 DOI: 10.1161/jaha.117.006892] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background Subcutaneously injected lipid‐free apoA‐I (apolipoprotein A‐I) reduces accumulation of lipid and immune cells within the aortic root of hypercholesterolemic mice without increasing high‐density lipoprotein–cholesterol concentrations. Lymphatic vessels are now recognized as prerequisite players in the modulation of cholesterol removal from the artery wall in experimental conditions of plaque regression, and particular attention has been brought to the role of the collecting lymphatic vessels in early atherosclerosis‐related lymphatic dysfunction. In the present study, we address whether and how preservation of collecting lymphatic function contributes to the protective effect of apoA‐I. Methods and Results Atherosclerotic Ldlr−/− mice treated with low‐dose lipid‐free apoA‐I showed enhanced lymphatic transport and abrogated collecting lymphatic vessel permeability in atherosclerotic Ldlr−/− mice when compared with albumin‐control mice. Treatment of human lymphatic endothelial cells with apoA‐I increased the adhesion of human platelets on lymphatic endothelial cells, in a bridge‐like manner, a mechanism that could strengthen endothelial cell–cell junctions and limit atherosclerosis‐associated collecting lymphatic vessel dysfunction. Experiments performed with blood platelets isolated from apoA‐I‐treated Ldlr−/− mice revealed that apoA‐I decreased ex vivo platelet aggregation. This suggests that in vivo apoA‐I treatment limits platelet thrombotic potential in blood while maintaining the platelet activity needed to sustain adequate lymphatic function. Conclusions Altogether, we bring forward a new pleiotropic role for apoA‐I in lymphatic function and unveil new potential therapeutic targets for the prevention and treatment of atherosclerosis.
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Affiliation(s)
- Andreea Milasan
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada.,Montreal Heart Institute, Montreal, Quebec, Canada
| | - Gabriel Jean
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada.,Montreal Heart Institute, Montreal, Quebec, Canada
| | | | - Jean-Claude Tardif
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada.,Montreal Heart Institute, Montreal, Quebec, Canada
| | - Yahye Merhi
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada.,Montreal Heart Institute, Montreal, Quebec, Canada
| | | | - Catherine Martel
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada .,Montreal Heart Institute, Montreal, Quebec, Canada
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139
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Anderson R, Feldman C. Review manuscript: Mechanisms of platelet activation by the pneumococcus and the role of platelets in community-acquired pneumonia. J Infect 2017; 75:473-485. [PMID: 28943342 DOI: 10.1016/j.jinf.2017.09.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/13/2017] [Accepted: 09/15/2017] [Indexed: 12/11/2022]
Abstract
There is increasing recognition of the involvement of platelets in orchestrating inflammatory responses, driving the activation of neutrophils, monocytes and vascular endothelium, which, if poorly controlled, may lead to microvascular dysfunction. Importantly, hyperreactivity of platelets has been implicated in the pathogenesis of myocardial injury and the associated particularly high prevalence of acute cardiovascular events in patients with severe community-acquired pneumonia (CAP), of which Streptococcus pneumoniae (pneumococcus) is the most commonly encountered aetiologic agent. In this context, it is noteworthy that a number of studies have documented various mechanisms by which the pneumococcus may directly promote platelet aggregation and activation. The major contributors to platelet activation include several different types of pneumococcal adhesin, the pore-forming toxin, pneumolysin, and possibly pathogen-derived hydrogen peroxide, which collectively represent a major focus of the current review. This is followed by an overview of the limited experimental studies together with a larger series of clinical studies mainly focused on all-cause CAP, which have provided evidence in support of associations between alterations in circulating platelet counts, most commonly thrombocytopenia, and a poor clinical outcome. The final section of the review covers, albeit briefly, systemic biomarkers of platelet activation which may have prognostic potential.
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Affiliation(s)
- Ronald Anderson
- Department of Immunology and Institute for Cellular and Molecular Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
| | - Charles Feldman
- Division of Pulmonology, Department of Internal Medicine, Charlotte Maxeke Johannesburg Academic Hospital and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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140
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Peng L, Liu J, Qin L, Liu J, Xi S, Lu C, Yin T. Interaction between platelet-derived microRNAs and CYP2C19*2 genotype on clopidogrel antiplatelet responsiveness in patients with ACS. Thromb Res 2017; 157:97-102. [DOI: 10.1016/j.thromres.2017.07.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 06/21/2017] [Accepted: 07/12/2017] [Indexed: 10/19/2022]
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141
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Tao SC, Guo SC, Zhang CQ. Platelet-derived Extracellular Vesicles: An Emerging Therapeutic Approach. Int J Biol Sci 2017; 13:828-834. [PMID: 28808416 PMCID: PMC5555101 DOI: 10.7150/ijbs.19776] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 04/30/2017] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicles (EVs) are a newly-discovered way by which cells communicate with their neighbors, as well as transporting cargos which once were considered to be limited by membrane barriers, including membrane proteins, cytosolic proteins and RNA. The discovery of platelet-derived EVs (P-EVs), the most abundant EVs in human blood, has been a very tortuous process. At first, P-EVs were identified as nothing but 'platelet dust', and subsequent research did not progress smoothly because of the limited research techniques to study EVs. Following leaps and bounds of technical progress in studying EVs, more and more attractive features of P-EVs were revealed and they began to be further researched. The aim of this review is to present the latest knowledge about the role of P-EVs in tissue repair and tumor progression. The potential mechanism of P-EVs is emphasized. Then the limitations of the present study and future research directions are discussed.
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Affiliation(s)
- Shi-Cong Tao
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Shang-Chun Guo
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Chang-Qing Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
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Circular RNAs: A novel type of biomarker and genetic tools in cancer. Oncotarget 2017; 8:64551-64563. [PMID: 28969093 PMCID: PMC5610025 DOI: 10.18632/oncotarget.18350] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 05/23/2017] [Indexed: 12/13/2022] Open
Abstract
Circular RNAs (circRNAs) are a novel type of universal and diverse endogenous noncoding RNAs (ncRNAs) and they form a covalently closed continuous loop without 5′ or 3′ tails unlike linear RNAs. Most circRNAs are presented with characteristics of abundance, stability, conservatism, and often exhibiting tissue/developmental-stage-specific expression. CircRNAs are generated either from exons or introns by back splicing or lariat introns. CircRNAs play important roles as miRNA sponges, gene transcription and expression regulators, RNA-binding protein (RBP) sponges and protein/peptide translators. Emerging evidence revealed the function of circRNAs in cancer and may potentially serve as a required novel biomarker and therapeutic target for cancer treatment. In this review, we discuss about the origins, characteristics and functions of circRNA and how they work as miRNA sponges, gene transcription and expression regulators, RBP sponges in cancer as well as current research methods of circRNAs, providing evidence for the significance of circRNAs in cancer diagnosis and clinical treatment.
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