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Varelas C, Vlachaki E, Klonizakis P, Pantelidou D, Minti F, Diamantidis M, Sabanis N, Koravou E, Christodoulou I, Papadopoulou D, Theodoridou S, Touloumenidou T, Papalexandri A, Sakellari I, Vakalopoulou S, Perifanis V, Vassilopoulos G, Mitroulis I, Gavriilaki E. Prospective study of complement activation and thromboinflammation within sickle cell disease and its complications. Hemasphere 2024; 8:e135. [PMID: 39055645 PMCID: PMC11270009 DOI: 10.1002/hem3.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 05/14/2024] [Accepted: 07/04/2024] [Indexed: 07/27/2024] Open
Affiliation(s)
- Christos Varelas
- Hematology DepartmentGeneral Hospital “George Papanikolaou”ThessalonikiGreece
| | - Efthymia Vlachaki
- Adult Thalassaemia Unit, 2nd Department of Internal Medicine, Aristotle University of ThessalonikiHippokration General Hospital of ThessalonikiThessalonikiGreece
| | - Philippos Klonizakis
- Adult Thalassaemia Unit, 2nd Department of Internal Medicine, Aristotle University of ThessalonikiHippokration General Hospital of ThessalonikiThessalonikiGreece
| | | | - Fani Minti
- Department of Microbiology, School of Medicine, Faculty of Health SciencesAristotle University of ThessalonikiThessalonikiGreece
| | - Michael Diamantidis
- Department of Hematology, Thalassemia and Sickle Cell Disease UnitGeneral Hospital of LarissaLarissaThessalyGreece
| | | | - Evdoxia Koravou
- Hematology DepartmentGeneral Hospital “George Papanikolaou”ThessalonikiGreece
| | - Ioanna Christodoulou
- Adult Thalassaemia Unit, 2nd Department of Internal Medicine, Aristotle University of ThessalonikiHippokration General Hospital of ThessalonikiThessalonikiGreece
| | | | - Stamatia Theodoridou
- Adult Thalassaemia Unit, 2nd Department of Internal Medicine, Aristotle University of ThessalonikiHippokration General Hospital of ThessalonikiThessalonikiGreece
| | | | | | - Ioanna Sakellari
- Hematology DepartmentGeneral Hospital “George Papanikolaou”ThessalonikiGreece
| | - Sofia Vakalopoulou
- 2nd Propaedeutic Department of Internal Medicine, Aristotle University of ThessalonikiHippokration General Hospital of ThessalonikiThessalonikiGreece
| | - Vasilis Perifanis
- 1st Propaedeutic Department of Internal Medicine, Aristotle University of ThessalonikiAHEPA University HospitalThessalonikiGreece
| | | | - Ioannis Mitroulis
- First Department of Internal Medicine, University Hospital of AlexandroupolisDemocritus University of ThraceAlexandroupolisGreece
| | - Eleni Gavriilaki
- Hematology DepartmentGeneral Hospital “George Papanikolaou”ThessalonikiGreece
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Fogarty H, Ahmad A, Atiq F, Doherty D, Ward S, Karampini E, Rehill A, Leon G, Byrne C, Geoghegan R, Conroy H, Byrne M, Budde U, Schneppenheim S, Sheehan C, Ngwenya N, Baker RI, Preston RJS, Tuohy E, McMahon C, O’Donnell JS. VWF-ADAMTS13 axis dysfunction in children with sickle cell disease treated with hydroxycarbamide vs blood transfusion. Blood Adv 2023; 7:6974-6989. [PMID: 37773926 PMCID: PMC10690561 DOI: 10.1182/bloodadvances.2023010824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 09/17/2023] [Accepted: 09/21/2023] [Indexed: 10/01/2023] Open
Abstract
Previous studies have reported elevated von Willebrand factor (VWF) levels in patients with sickle cell disease (SCD) and demonstrated a key role for the VWF-ADAMTS13 axis in the pathobiology of SCD vaso-occlusion. Although blood transfusion is the gold standard for stroke prevention in SCD, the biological mechanisms underpinning its improved efficacy compared with hydroxycarbamide are not fully understood. We hypothesized that the improved efficacy of blood transfusion might relate to differences in VWF-ADAMTS13 axis dysfunction. In total, 180 children with a confirmed diagnosis of SCD (hemoglobin SS) on hydroxycarbamide (n = 96) or blood transfusion (n = 84) were included. Despite disease-modifying treatment, plasma VWF and VWF propeptide were elevated in a significant proportion of children with SCD (33% and 47%, respectively). Crucially, all VWF parameters were significantly higher in the hydroxycarbamide compared with the blood transfusion cohort (P < .05). Additionally, increased levels of other Weibel-Palade body-stored proteins, including factor VIII (FVIII), angiopoietin-2, and osteoprotegerin were observed, indicated ongoing endothelial cell activation. Children treated with hydroxycarbamide also had higher FVIII activity and enhanced thrombin generation compared with those in the blood transfusion cohort (P < .001). Finally, hemolysis markers strongly correlated with VWF levels (P < .001) and were significantly reduced in the blood transfusion cohort (P < .001). Cumulatively, to our knowledge, our findings demonstrate for the first time that despite treatment, ongoing dysfunction of the VWF-ADAMTS13 axis is present in a significant subgroup of pediatric patients with SCD, especially those treated with hydroxycarbamide.
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Affiliation(s)
- Helen Fogarty
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
- Department of Haematology, Children’s Health Ireland at Crumlin, Dublin, Ireland
- National Children’s Research Centre, Children’s Health Ireland at Crumlin, Dublin, Ireland
| | - Azaz Ahmad
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ferdows Atiq
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Dearbhla Doherty
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Soracha Ward
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ellie Karampini
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Aisling Rehill
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Gemma Leon
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ciara Byrne
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Rosena Geoghegan
- Department of Haematology, Children’s Health Ireland at Crumlin, Dublin, Ireland
| | - Helena Conroy
- Department of Haematology, Children’s Health Ireland at Crumlin, Dublin, Ireland
| | - Mary Byrne
- National Coagulation Centre, St. James’s Hospital, Dublin, Ireland
| | - Ulrich Budde
- Department of Haemostaseology, MVZ Medilys Laborgesellschaft mbH, Hamburg, Germany
| | - Sonja Schneppenheim
- Department of Haemostaseology, MVZ Medilys Laborgesellschaft mbH, Hamburg, Germany
| | - Ciara Sheehan
- Department of Haematology, St. James’s Hospital, Dublin, Ireland
| | - Noel Ngwenya
- Department of Haematology, St. James’s Hospital, Dublin, Ireland
| | - Ross I. Baker
- Western Australia Centre for Thrombosis and Haemostasis, Perth Blood Institute, Murdoch University, Perth, WA, Australia
- Irish-Australian Blood Collaborative Network, Dublin, Ireland and Perth, Australia
| | - Roger J. S. Preston
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
- National Children’s Research Centre, Children’s Health Ireland at Crumlin, Dublin, Ireland
| | - Emma Tuohy
- Department of Haematology, St. James’s Hospital, Dublin, Ireland
| | - Corrina McMahon
- Department of Haematology, Children’s Health Ireland at Crumlin, Dublin, Ireland
- National Children’s Research Centre, Children’s Health Ireland at Crumlin, Dublin, Ireland
| | - James S. O’Donnell
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
- National Children’s Research Centre, Children’s Health Ireland at Crumlin, Dublin, Ireland
- National Coagulation Centre, St. James’s Hospital, Dublin, Ireland
- Irish-Australian Blood Collaborative Network, Dublin, Ireland and Perth, Australia
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3
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Vital EF, Lam WA. Hidden behind thromboinflammation: revealing the roles of von Willebrand factor in sickle cell disease pathophysiology. Curr Opin Hematol 2023; 30:86-92. [PMID: 36853830 PMCID: PMC10065920 DOI: 10.1097/moh.0000000000000755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
PURPOSE OF REVIEW This review provides an update on the pathophysiology of sickle cell disease (SCD) with a particular focus on the dysregulation of the von Willebrand factor (VWF) - ADAMTS13 axis that contributes to its pathogenesis. In discussing recent developments, we hope to encourage new and ongoing discussions surrounding therapeutic targets for SCD. RECENT FINDINGS Within the last 5 years, the role of VWF in the pathophysiology of SCD has been further elucidated and is now a target of study in ongoing clinical trials. SUMMARY The pathophysiology of SCD is multifaceted, as it involves systemwide vascular activation, altered blood rheology, and the activation of immune responses and coagulative pathways. The presence of VWF in excess in SCD, particularly in its largest multimeric form, greatly contributes to its pathogenesis. Understanding the molecular mechanisms that underly the presence of large VWF multimers in SCD will provide further insight into the pathogenesis of SCD and provide specific targets for therapy.
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Affiliation(s)
- Eudorah F. Vital
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University
- Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta and Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Wilbur A. Lam
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University
- Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta and Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
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Ellsworth P, Sparkenbaugh EM. Targeting the von Willebrand Factor-ADAMTS-13 axis in sickle cell disease. J Thromb Haemost 2023; 21:2-6. [PMID: 36695390 PMCID: PMC10413208 DOI: 10.1016/j.jtha.2022.10.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 01/09/2023]
Affiliation(s)
- Patrick Ellsworth
- Department of Medicine, Division of Hematology and Blood Research Center, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Erica M Sparkenbaugh
- Department of Medicine, Division of Hematology and Blood Research Center, University of North Carolina, Chapel Hill, North Carolina, USA; Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, USA.
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Nwagha TU, Nweke M, Ezigbo ED. Contributions of von Willebrand factor to clinical severity of sickle cell disease: a systematic review and metanalysis. HEMATOLOGY (AMSTERDAM, NETHERLANDS) 2022; 27:860-866. [PMID: 35938970 DOI: 10.1080/16078454.2022.2107908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIM To evaluate the contributions of VWF to the clinical manifestation and severity of SCD. DESIGN A systematic review of peer-reviewed articles published in English. The review was carried out in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses checklist. METHODS The data sources for the review included MEDLINE, PubMed, CINAHL, and Academic Search Complete. Articles that applied a quantitative approach to the investigation of the relationship of vWF with clinical manifestations and severity indices were included. The risk of bias assessment was carried out with a mixed-method appraisal tool. We computed I 2 to estimate the degree of heterogeneity. RESULT There was a significantly higher level of VWF in SCD than in the control (d = 2.7, Z = 4.865, P < 0.001, I 2 = 96.41%). Significant positive correlations were obtained for the relationship of VWF with vasoocclusive crisis (r= 0.277, Z= 5.077, P < 0.001, 1 2 =15.62), rate of hemolysis (r=0.441; Z= 4.440, I 2 = <1%), extracellular haemoglobin (r=-0.397, Z=-4.155, I 2 =<1%) and CRP (r = 0.331, Z = 4.566, P < 0.001, I 2 < 1%).The VWF is important in determining the clinical severity of sickle cell disease, which constitutes a putative therapeutic target. More work is required to understand the causal direction underlying the association between VWF levels and the clinical severity of sickle cell disease and the potential role that VWF plays in the clinical manifestations of sickle cell disease. PROTOCOL REGISTRATION The protocol was registered with PROSPERO (CRD42021262625).
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Affiliation(s)
- T U Nwagha
- Department of Haematology, Faculty of Medicine, University of Nigeria /University of Nigeria Teaching Hospital Ituku Ozalla, Nsukka, Nigeria
| | | | - E D Ezigbo
- Department of Medical Laboratory Science, Faculty of Health Sciences, University of Nigeria Enugu Campus, Nsukka, Nigeria
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Tsitsikas DA, Mihalca D, Hall J, May JE, Gangaraju R, Marques MB, Scully M. Pitfalls in Diagnosing Thrombotic Thrombocytopenic Purpura in Sickle Cell Disease. J Clin Med 2022; 11:jcm11226676. [PMID: 36431152 PMCID: PMC9696110 DOI: 10.3390/jcm11226676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/13/2022] Open
Abstract
Thrombotic thrombocytopenia purpura is characterised by microangiopathic haemolytic anaemia and red cell fragmentation on the peripheral smear, neurological involvement and thrombocytopenia. Diagnosis in the context of sickle cell disease can be challenging due to the inherent haemolytic state and the multitude of other associated complications of the latter. Specifically, fat embolism syndrome characterised by respiratory failure, neurological impairment and thrombocytopenia can be misdiagnosed this way. Confirmation of a diagnosis of thrombotic thrombocytopenic purpura requires demonstration of very low levels (<10%) of the metalloproteinase ADAMTS13 which in fat embolism syndrome is normal. Existing scoring systems used to estimate the pre-test probability for thrombotic thrombocytopenic purpura cannot be applied in patients with sickle cell disease due to the chronic underlying haemolysis. Here, we analyse the diagnostic approach in published cases of thrombotic thrombocytopenic purpura affecting patients with sickle-cell disease. The vast majority of cases were characterised by severe respiratory failure before any other manifestation, a feature of fat embolism syndrome but not of thrombotic thrombocytopenic purpura, and all received red cell transfusion prior to receiving therapeutic plasma exchange. Despite the potential overestimation of the pre-test probability using the existing scoring systems, a large number of cases still scored low. There were no cases with documented low ADAMTS13. In the majority this was not tested, while in the 3 cases that ADAMTS13 was tested, levels were normal. Our review suggests that due to many overlapping clinical and laboratory features thrombotic thrombocytopenic purpura may be erroneously diagnosed in sickle cell disease instead of other complications such as fat embolism syndrome and confirmation with ADAMTS13 testing is essential.
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Affiliation(s)
| | - Diana Mihalca
- Homerton Healthcare NHS Foundation Trust, London E9 6SR, UK
| | - John Hall
- Homerton Healthcare NHS Foundation Trust, London E9 6SR, UK
| | - Jori E. May
- Department of Pathology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Radhika Gangaraju
- Department of Pathology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Marisa B. Marques
- Department of Pathology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Marie Scully
- University College Hospital, 235 Euston Road, Fitzrovia, London NW1 2BU, UK
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Hunt RC, Katneni U, Yalamanoglu A, Indig FE, Ibla JC, Kimchi-Sarfaty C. Contribution of ADAMTS13-independent VWF regulation in sickle cell disease. J Thromb Haemost 2022; 20:2098-2108. [PMID: 35753044 PMCID: PMC10460119 DOI: 10.1111/jth.15804] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/02/2022] [Accepted: 06/23/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Von Willebrand factor (VWF) is elevated in sickle cell disease (SCD) and contributes to vaso-occlusion through its thrombogenic properties. VWF is regulated by ADAMTS13, a plasma protease that cleaves VWF into less bioactive multimers. Independent investigations have shown VWF to be elevated in SCD, whereas measurements of ADAMTS13 have been variable. OBJECTIVES We assessed ADAMTS13 activity using multiple activity assays and measured levels of alternative VWF-cleaving proteases in SCD. METHODS/ PATIENTS Plasma samples were collected from adult patients with SCD (n = 20) at a single institution when presenting for routine red cell exchange transfusion therapy. ADAMTS13 activity was measured by FRETS-VWF73, Technozym ADAMTS-13 Activity ELISA kit and a full-length VWF digestion reaction. Alternative VWF-cleaving proteases were identified by ELISA. A cell culture model was used to study the impact of SCD stimuli on endothelial ADAMTS13 and alternative VWF-cleaving proteases. RESULTS ADAMTS13 activity was found to be moderately deficient across the SCD cohort as assessed by activity assays using a VWF A2 domain peptide substrate. However, SCD plasma showed preserved ability to digest full-length VWF, suggesting assay-discrepant results. Neutrophil and endothelial-derived proteases were found to be elevated in SCD plasma. Matrix metalloproteinase 9 specifically showed preferential cleavage of full-length VWF. Upregulation of alternative VWF-cleaving proteases occurred in endothelial cells exposed to SCD stimuli such as heme and hypoxia. CONCLUSIONS This is the first demonstration of accessory plasma enzymes contributing to the regulation of VWF in a specific disease state and may have implications for assessing the VWF/ADAMTS13 axis in other settings.
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Affiliation(s)
- Ryan C. Hunt
- Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapies, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Upendra Katneni
- Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapies, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Ayla Yalamanoglu
- Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapies, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Fred E. Indig
- Confocal Imaging Facility, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, USA
| | - Juan C. Ibla
- Division of Cardiac Anesthesia, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Chava Kimchi-Sarfaty
- Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapies, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
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