Article (Scientific journals)
Soluble GPVI is elevated in injured patients: shedding is mediated by fibrin activation of GPVI
Montague, Samantha; Delierneux, Céline; LECUT, Christelle et al.
2018In Blood, 2 (3), p. 240/251
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Abstract :
[en] Soluble glycoprotein VI (sGPVI) is shed from the platelet surface and is a marker of platelet activation in thrombotic conditions. We assessed sGPVI levels together with patient and clinical parameters in acute and chronic inflammatory conditions, including patients with thermal injury and inflammatory bowel disease and patients admitted to the intensive care unit (ICU) for elective cardiac surgery, trauma, acute brain injury, or prolonged ventilation. Plasma sGPVI was measured by enzyme-linked immunosorbent assay and was elevated on day 14 after thermal injury, and was higher in patients who developed sepsis. sGPVI levels were associated with sepsis, and the value for predicting sepsis was increased in combination with platelet count and Abbreviated Burn Severity Index. sGPVI levels positively correlated with levels of D-dimer (a fibrin degradation product) in ICU patients and patients with thermal injury. sGPVI levels in ICU patients at admission were significantly associated with 28- and 90-day mortality independent of platelet count. sGPVI levels in patients with thermal injury were associated with 28-day mortality at days 1, 14, and 21 when adjusting for platelet count. In both cohorts, sGPVI associations with mortality were stronger than D-dimer levels. Mechanistically, release of GPVI was triggered by exposure of platelets to polymerized fibrin, but not by engagement of G protein-coupled receptors by thrombin, adenosine 5'-diphosphate, or thromboxane mimetics. Enhanced fibrin production in these patients may therefore contribute to the observed elevated sGPVI levels. sGPVI is an important platelet-specific marker for platelet activation that predicts sepsis progression and mortality in injured patients.
Disciplines :
Cardiovascular & respiratory systems
Author, co-author :
Montague, Samantha ;  Australian Cancer Research Foundation Department of Cancer Biology and Therapeutics, John Curtin School of Medical Research
Delierneux, Céline ;  Department of Cellular and Molecular Physiology Pennsylvania State University College of Medicine
LECUT, Christelle ;  Centre Hospitalier Universitaire de Liège - CHU > Unité de laboratoire - thrombose - hémostase
LAYIOS, Nathalie  ;  Centre Hospitalier Universitaire de Liège - CHU > Service des soins intensifs généraux
Dinsdale, RJ;  Scar Free Foundation for Burns Research, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
Lee, CS;  Australian Cancer Research Foundation Department of Cancer Biology and Therapeutics, John Curtin School of Medical Research
Poulter, NS;  Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
Andrews, RK;  Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
Hampson, P;  Scar Free Foundation for Burns Research, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
Wearn, CM;  Scar Free Foundation for Burns Research, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
MAES, Nathalie ;  Centre Hospitalier Universitaire de Liège - CHU > Secteur d'appui à la recherche clinique et biostatistique
Bishop, J;  National Institute for Health Research Surgical Reconstruction and Microbiology Centre (Trauma Research), University of Birmingham, Birmingham
Bamford, A;  Scar Free Foundation for Burns Research, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
Gardiner, C;  Department of Haematology, University College London, London,
Lee, WM;  Australian Cancer Research Foundation Department of Cancer Biology and Therapeutics, John Curtin School of Medical Research
Iqbal, T;  Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham NHS Foundation Trust, Birmingham
Moiemen, N;  Scar Free Foundation for Burns Research, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
Watson, SP;  Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
Oury, Cécile   ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > GIGA-R : GIGA - Cardiovascular Sciences
Harrisson, P ;  Scar Free Foundation for Burns Research, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
Gardiner, E ;  Australian Cancer Research Foundation Department of Cancer Biology and Therapeutics, John Curtin School of Medical Research
More authors (11 more) Less
 These authors have contributed equally to this work.
Language :
English
Title :
Soluble GPVI is elevated in injured patients: shedding is mediated by fibrin activation of GPVI
Publication date :
February 2018
Journal title :
Blood
ISSN :
0006-4971
eISSN :
1528-0020
Publisher :
American Society of Hematology, United States
Volume :
2
Issue :
3
Pages :
240/251
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 June 2018

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