Journal article
ADAMTS13 regulation of VWF multimer distribution in severe COVID‐19
Journal of Thrombosis and Haemostasis, Vol.19(8), pp.1914-1921
2021
Abstract
Background
Consistent with fulminant endothelial cell activation, elevated plasma von Willebrand factor (VWF) antigen levels have been reported in patients with COVID-19. The multimeric size and function of VWF are normally regulated through A Disintegrin And Metalloprotease with ThrombSpondin Motif type 1 motif, member 13 (ADAMTS-13)--mediated proteolysis.
Objectives
This study investigated the hypothesis that ADAMTS-13 regulation of VWF multimer distribution may be impaired in severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infection contributing to the observed microvascular thrombosis.
Patients and Methods
Patients with COVID-19 (n = 23) were recruited from the Beaumont Hospital Intensive Care Unit (ICU) in Dublin. Plasma VWF antigen, multimer distribution, ADAMTS-13 activity, and known inhibitors thereof were assessed.
Results
We observed markedly increased VWF collagen-binding activity in patients with severe COVID-19 compared to controls (median 509.1 versus 94.3 IU/dl). Conversely, plasma ADAMTS-13 activity was significantly reduced (median 68.2 IU/dl). In keeping with an increase in VWF:ADAMTS-13 ratio, abnormalities in VWF multimer distribution were common in patients with COVID-19, with reductions in high molecular weight VWF multimers. Terminal sialylation regulates VWF susceptibility to proteolysis by ADAMTS-13 and other proteases. We observed that both N- and O-linked sialylation were altered in severe COVID-19. Furthermore, plasma levels of the ADAMTS-13 inhibitors interleukin-6, thrombospondin-1, and platelet factor 4 were significantly elevated.
Conclusions
These findings support the hypothesis that SARS-CoV-2 is associated with profound quantitative and qualitative increases in plasma VWF levels, and a multifactorial down-regulation in ADAMTS-13 function. Further studies will be required to determine whether therapeutic interventions to correct ADAMTS-13-VWF multimer dysfunction may be useful in COVID-microvascular thrombosis and angiopathy.
Details
- Title
- ADAMTS13 regulation of VWF multimer distribution in severe COVID‐19
- Authors/Creators
- S.E. Ward (Author/Creator) - Royal College of Surgeons in IrelandH. Fogarty (Author/Creator) - Royal College of Surgeons in IrelandE. Karampini (Author/Creator) - Royal College of Surgeons in IrelandM. Lavin (Author/Creator) - Royal College of Surgeons in IrelandS. Schneppenheim (Author/Creator) - Department of Hämostaseology Medilys Laborgesellschaft mbH Hamburg GermanyR. Dittmer (Author/Creator) - Department of Hämostaseology Medilys Laborgesellschaft mbH Hamburg GermanyH. Morrin (Author/Creator) - Royal College of Surgeons in IrelandS. Glavey (Author/Creator) - Beaumont HospitalC. Ni Cheallaigh (Author/Creator) - St. James's HospitalC. Bergin (Author/Creator) - St. James's HospitalI. Martin‐Loeches (Author/Creator)P.W. Mallon (Author/Creator) - University College DublinG.F. Curley (Author/Creator) - Royal College of Surgeons in IrelandR.I. Baker (Author/Creator) - Western Australia Centre for Thrombosis and Haemostasis Perth Blood InstituteMurdoch University Perth AustraliaU. Budde (Author/Creator) - Department of Hämostaseology Medilys Laborgesellschaft mbH Hamburg GermanyJ.M. O’Sullivan (Author/Creator) - Royal College of Surgeons in IrelandJ.S. O’Donnell (Author/Creator) - Royal College of Surgeons in IrelandN. O’Connell (Author/Creator)M. Byrne (Author/Creator)L. Townsend (Author/Creator)N.L. McEvoy (Author/Creator)J. Clarke (Author/Creator)M. Boylan (Author/Creator)R. Alalqam (Author/Creator)A.P. Worrall (Author/Creator)C. Kelly (Author/Creator)E. de Barra (Author/Creator)R. Preston (Author/Creator)D. Kenny (Author/Creator)
- Publication Details
- Journal of Thrombosis and Haemostasis, Vol.19(8), pp.1914-1921
- Publisher
- Wiley-Blackwell
- Identifiers
- 991005542346907891
- Copyright
- © 2021 The Authors.
- Murdoch Affiliation
- Western Australian Centre for Thrombosis and Haemostasis
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
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- Citation topics
- 1 Clinical & Life Sciences
- 1.104 Virology - General
- 1.104.1353 Coronavirus Research
- Web Of Science research areas
- Hematology
- Peripheral Vascular Disease
- ESI research areas
- Clinical Medicine