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Devreese KMJ. Noncriteria antiphospholipid antibodies in antiphospholipid syndrome. Int J Lab Hematol 2024; 46 Suppl 1:34-42. [PMID: 38584293 DOI: 10.1111/ijlh.14268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 02/28/2024] [Indexed: 04/09/2024]
Abstract
Antiphospholipid syndrome (APS) is an autoimmune disease characterized by thrombotic manifestations and/or obstetric complications in patients with persistently positive antiphospholipid antibodies (aPL). aPL are a heterogeneous group of autoantibodies, but only lupus anticoagulant, anticardiolipin (aCL), and antibeta2-glycoprotein I antibodies (aβ2GPI) IgG or IgM are included as laboratory classification criteria. Seronegative APS patients are usually defined as patients with the clinical symptoms of APS but who test negative for aPL. The negativity to classic aPL criteria does not exclude the presence of other aPL. Several noncriteria aPL have been identified. Some noncriteria aPL are well studied, such as IgA aCL and aβ2GPI, the antiphosphatidylserine-prothrombin (aPS/PT) antibodies, and the antibodies against the domain I of beta2-glycoprotein I (aDI), both latter groups receiving more attention for their role in thrombotic events and pregnancy complications. Other noncriteria aPL that have been studied are antibodies against annexin V, prothrombin, phosphatidylethanolamine, phosphatidic acid, phosphatidylserine, phosphatidylinositol, vimentin-cardiolipin complex, anti-protein S/protein C. Measurement of some of these noncriteria aPL (aPS/PT, aDI) is useful in the laboratory work-out of APS in specific situations. We have to differentiate between patients who are positive for noncriteria aPL only, and patients who have both criteria and noncriteria aPL to enable us to study their role in the diagnosis or risk stratification of APS. The research on noncriteria aPL is continually developing as the clinical relevance of these antibodies is not yet fully clarified.
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Affiliation(s)
- Katrien M J Devreese
- Coagulation Laboratory, Ghent University Hospital, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
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2
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Gaspar P, Fernandes ASM, Abrantes AM, Parreira I, Silva I, Silva RC, Nobre MB, Martins JR, Mota C. Predictors of damage accrual and its impact on health-related quality of life of thrombotic antiphospholipid syndrome: Independent validation of the damage index for antiphospholipid syndrome (DIAPS). Lupus 2024:9612033241246360. [PMID: 38616341 DOI: 10.1177/09612033241246360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
OBJECTIVES We aim to independently assess the validity of the damage index for antiphospholipid syndrome (DIAPS) in thrombotic antiphospholipid syndrome (APS) patients by exploring the prevalence and risk factors of organ damage and evaluating its impact on health-related quality of life (HR-QoL). METHODS Cross-sectional study including all thrombotic APS patients (Sydney criteria) attending a Portuguese tertiary centre. Damage was assessed using the DIAPS, and HR-QoL using the 3- and 5-level EuroQol HR-QoL (EQ-D5-3L and 5L), and Visual Analogue Scale (VAS) applied via a phone questionnaire. Spearman's correlation between DIAPS and the HR-QoL scales was performed. Risk factors for damage accrual and HR-QoL impairment were explored using univariate and multivariate logistic regression. RESULTS Among the 108 patients (female, 65.7%; white, 90.7%; primary APS, 75.9%; median disease duration, 6 years), damage (DIAPS≥1) developed in 48.2% of patients (mean ± SD DIAPS, 3.08 ± 1.83). DIAPS's neuropsychiatric domain was the most affected (24.2%), followed by the peripheral vascular domain (20.3%). No clinical, demographic nor laboratory parameters were significantly associated with damage. Regarding HR-QoL, pain/discomfort, anxiety/depression and usual activities domains were the most frequently impaired in both scales. DIAPS's domains correlated similarly with the EQ-5D-3L and 5L scales' individual domains. Female sex, medical disorders, secondary APS and type of presenting thrombosis (arterial) increased the risk of HR-QoL impairment. Total DIAPS was associated with higher odds of mobility, self-care and pain/discomfort impairment in both EQ-5D-3L and 5L scales but lost its independent risk in multivariable analysis. CONCLUSION This external validation of DIAPS reinforces the ability of the score to correlate with HR-QoL while also highlighting risk factors for HR-QoL impairment other than damage accrual.
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Affiliation(s)
- Pedro Gaspar
- Internal Medicine Department, Hospital Santa Maria, Unidade Local de Saúde Santa Maria, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Centro Académico de Medicina de Lisboa, Universidade de Lisboa, Lisbon, Portugal
| | | | - Ana Mafalda Abrantes
- Internal Medicine Department, Hospital Santa Maria, Unidade Local de Saúde Santa Maria, Lisbon, Portugal
- Instituto de Semiótica Clínica, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Inês Parreira
- Internal Medicine Department, Hospital Santa Maria, Unidade Local de Saúde Santa Maria, Lisbon, Portugal
| | - Inês Silva
- Internal Medicine Department, Hospital Santa Maria, Unidade Local de Saúde Santa Maria, Lisbon, Portugal
| | - Ryan C Silva
- Internal Medicine Department, Hospital Santa Maria, Unidade Local de Saúde Santa Maria, Lisbon, Portugal
- Clínica Universitária de Medicina 1, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Mariana B Nobre
- Internal Medicine Department, Hospital Santa Maria, Unidade Local de Saúde Santa Maria, Lisbon, Portugal
| | - Joana R Martins
- Internal Medicine Department, Hospital Santa Maria, Unidade Local de Saúde Santa Maria, Lisbon, Portugal
- Clínica Universitária de Medicina 1, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Catarina Mota
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Centro Académico de Medicina de Lisboa, Universidade de Lisboa, Lisbon, Portugal
- Clínica Universitária de Medicina 2, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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Guo J, Tian M, Li Y, Guo Y, Zhang T, Liu X, Shen J, Zhang L, Yu Y, Cao L, Gu H, Li Y, Duan S, Wang Q. Exploring clinical indicator variations in stroke patients with multiple risk factors: focus on hypertension and inflammatory reactions. Eur J Med Res 2024; 29:81. [PMID: 38287458 PMCID: PMC10823715 DOI: 10.1186/s40001-024-01653-6] [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] [Received: 10/11/2023] [Accepted: 01/10/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Stroke stands as the second leading cause of death worldwide. Currently, extensive research has been conducted on stroke risk factors. However, when stroke patients contend with multiple risk factors, the impact on clinical indicators remains uncertain. OBJECTIVES This study seeks to investigate potential significant variations among distinct ranges of clinical indicators in instances where stroke patients experience multiple risk factors and various ischemic stroke subtypes. MATERIAL AND METHODS The research encompassed 440 stroke patients admitted to the First People's Hospital of Wenling City, Zhejiang Province, China. These patients were classified based on the type and quantity of risk factors and subtypes of ischemic stroke they presented. The χ2 test was employed to assess the relationship between the risk of comorbid diseases and clinical indicators in stroke patients. RESULTS The results of our study have underscored a significant correlation between various comorbid risk factors in stroke patients and the patients' age (P < 0.010). Furthermore, we observed noteworthy disparities in the plasma levels of IL-2, IL-4, IL-6, IL-10, TNF-α, and INF-γ between patients devoid of risk factors and those presenting with comorbid risk factors associated with stroke. Significant differences in INF-γ were observed between the two subtypes of ischemic stroke, namely lacunar infarction and cardioembolic stroke. CONCLUSION Age is correlated with an elevated risk of stroke. Individuals exhibiting multiple stroke risk factors and diverse ischemic stroke subtypes commonly present with abnormal lipid levels and imbalances in Th1/Th2 cytokines. These factors significantly contribute to the onset and progression of stroke. Furthermore, inflammatory responses, particularly those induced by atherosclerosis, play a pivotal role in the genesis of stroke and exert a substantial influence on its prognosis.
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Affiliation(s)
- Jiejie Guo
- Zhejiang Key Laboratory of Pathophysiology, NBU Health Science Center, Ningbo University, Ningbo, 315211, Zhejiang, China
- Department of Clinical Laboratory, The Affiliated Wenling Hospital, Wenzhou Medical University, Wenling, 317500, Zhejiang, China
- Department of Neurology, The Affiliated Wenling Hospital, Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Mei Tian
- College of Pharmacy, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, 310015, Zhejiang, China
| | - Yongang Li
- Department of Neurology, The Affiliated Wenling Hospital, Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Yitong Guo
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, 310015, Zhejiang, China
| | - Ting Zhang
- Department of Clinical Laboratory, The Affiliated Wenling Hospital, Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Xuan Liu
- Department of Neurology, The Affiliated Wenling Hospital, Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Jinze Shen
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, 310015, Zhejiang, China
| | - Lin Zhang
- Department of Neurology, The Affiliated Wenling Hospital, Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Yueqi Yu
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, 310015, Zhejiang, China
| | - Ling Cao
- Ningbo Rehabilitation Hospital, Ningbo, 315040, China
| | - Haiyan Gu
- Ningbo Rehabilitation Hospital, Ningbo, 315040, China
| | - Yanfang Li
- Ningbo Rehabilitation Hospital, Ningbo, 315040, China
| | - Shiwei Duan
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, 310015, Zhejiang, China.
| | - Qinwen Wang
- Zhejiang Key Laboratory of Pathophysiology, NBU Health Science Center, Ningbo University, Ningbo, 315211, Zhejiang, China.
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Aguirre Del-Pino R, Monahan RC, Huizinga TWJ, Eikenboom J, Steup-Beekman GM. Risk Factors for Antiphospholipid Antibodies and Antiphospholipid Syndrome. Semin Thromb Hemost 2024. [PMID: 38228166 DOI: 10.1055/s-0043-1776910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Persistence of serum antiphospholipid antibodies (aPL) is associated with a high thrombotic risk, both arterial and venous, and with pregnancy complications. Due to the potential morbidity and mortality associated with the presence of aPL, identifying and recognizing risk factors for the development of aPL and thrombosis in aPL carriers may help to prevent and reduce the burden of disease. Multiple elements are involved in the pathomechanism of aPL development and aPL-related thrombosis such as genetics, malignancy, and infections. This review will address the role of both well-known risk factors and their evolution, and of emerging risk factors, including COVID-19, in the development of aPL and thrombosis in aPL carriers.
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Affiliation(s)
- Rodrigo Aguirre Del-Pino
- Department of Rheumatology, Leiden University Medical Center (LUMC), Leiden, The Netherlands
- Division of Rheumatology, A Coruña University Hospital (CHUAC), Galicia, Spain
| | - Rory C Monahan
- Department of Rheumatology, Leiden University Medical Center (LUMC), Leiden, The Netherlands
- Department of Clinical Epidemiology, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Tom W J Huizinga
- Department of Rheumatology, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Jeroen Eikenboom
- Division of Thrombosis and Hemostasis, Department of Internal Medicine, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Gerda M Steup-Beekman
- Department of Rheumatology, Leiden University Medical Center (LUMC), Leiden, The Netherlands
- Department of Rheumatology, Haaglanden Medical Center, The Hague, The Netherlands
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Moore GW, Foxton E, Platton S, Yartey N, White D, MacDonald SG. Triple-positive antiphospholipid syndrome does not guarantee positivity in each lupus anticoagulant assay. J Thromb Haemost 2023; 21:3539-3546. [PMID: 37597725 DOI: 10.1016/j.jtha.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/21/2023]
Abstract
BACKGROUND Triple positivity for all 3 criteria antiphospholipid antibodies confers high risk of symptom development in carriers, and recurrence in antiphospholipid syndrome (APS). Most triple-positivity studies report lupus anticoagulant (LA) testing as positive without distinguishing between positivity with dilute Russell's viper venom time (dRVVT) and activated partial thromboplastin time (APTT) and single-assay positivity or only perform dRVVT. Single LA assay repertoires remain in use in some centers, which risks missing some triple positives. Positivity with both assays may identify higher risk. OBJECTIVES The aim of this study is to investigate the frequency of single LA assay positivity in triple-positive patients. METHODS Three hundred forty-two triple-positive profiles from nonanticoagulated patients (237 APS, 45 systemic lupus erythematosus without APS symptoms, and 60 nonclinical criteria) were identified from laboratory databases and assessed for LA positivity by dRVVT and/or APTT. RESULTS Seventy-three of 237 (30.8%) APS samples were LA-positive with 1 assay, 40/237 (16.9%) by dRVVT only, and 33/237 (13.9%) with APTT only. Nineteen of 45 (42.2%) were LA-positive with 1 assay in the systemic lupus erythematosus cohort; 12/45 (26.7%) with dRVVT only and 7/45 (15.5%) with APTT only. Thirty-three of 60 (55.0%) were LA-positive with 1 assay in the nonclinical criteria cohort; 24/60 (40.0%) with dRVVT only and 9/60 (15.0%) with APTT only. The most common solid-phase assay profile was elevated immunoglobulin G aCL and aβ2GPI. CONCLUSION Up to 55.0% of triple-positive samples were positive in 1 LA assay, representing significant potential for misdiagnosis and inappropriate management via single LA assay repertoires.
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Affiliation(s)
- Gary W Moore
- Department of Haematology, Specialist Haemostasis Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK; Department of Natural Sciences, Faculty of Science and Technology, Middlesex University, London, UK.
| | - Eleanor Foxton
- Synnovis Haemostasis and Thrombosis Laboratory, St Thomas' Hospital, London, UK
| | - Sean Platton
- The Royal London Hospital Haemophilia Centre, Barts Health NHS Trust, London, UK
| | - Nada Yartey
- East and South East London NHS Pathology Partnership, Barts Health NHS Trust, London, UK
| | - Danielle White
- Department of Haematology, Specialist Haemostasis Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Stephen G MacDonald
- Department of Haematology, Specialist Haemostasis Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
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Bouki K, Venetsanaki V, Chrysoulaki M, Pateromichelaki A, Betsi G, Daraki V, Sbyrakis N, Spanakis K, Bertsias G, Sidiropoulos PI, Xekouki P. Primary adrenal insufficiency due to bilateral adrenal hemorrhage-adrenal infarction in a patient with systemic lupus erythematosus and antiphospholipid syndrome: case presentation and review of the literature. Hormones (Athens) 2023; 22:521-531. [PMID: 37436639 PMCID: PMC10449959 DOI: 10.1007/s42000-023-00463-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 06/22/2023] [Indexed: 07/13/2023]
Abstract
Primary adrenal insufficiency (PAI) is a rare disease which represents the end stage of a destructive process involving the adrenal cortex. Occasionally it may be caused by bilateral adrenal hemorrhagic infarction in patients with antiphospholipid syndrome (APS). We herein report the challenging case of a 30-year-old female patient with systemic lupus erythematosus (SLE) and secondary APS who was admitted to the emergency department (ED) due to fever, lethargy, and syncopal episodes. Hyponatremia, hyperkalemia, hyperpigmentation, shock, altered mental status, and clinical response to glucocorticoid administration were features highly suggestive of an acute adrenal crisis. The patient's clinical status required admission to the intensive care unit (ICU), where steroid replacement, anticoagulation, and supportive therapy were provided, with a good outcome. Imaging demonstrated bilateral adrenal enlargement attributed to recent adrenal hemorrhage. This case highlights the fact that bilateral adrenal vein thrombosis and subsequent hemorrhage can be part of the thromboembolic complications seen in both primary and secondary APS and which, if misdiagnosed, may lead to a life-threatening adrenal crisis. High clinical suspicion is required for its prompt diagnosis and management. A literature search of past clinical cases with adrenal insufficiency (AI) in the setting of APS and SLE was conducted using major electronic databases. Our aim was to retrieve information about the pathophysiology, diagnosis, and management of similar conditions.
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Affiliation(s)
- K Bouki
- Endocrinology and Diabetes Clinic, University Hospital of Heraklion, University of Crete School of Medicine, Voutes, 71500, Heraklion Crete, Crete, Greece
| | - V Venetsanaki
- Endocrinology and Diabetes Clinic, University Hospital of Heraklion, University of Crete School of Medicine, Voutes, 71500, Heraklion Crete, Crete, Greece
| | - M Chrysoulaki
- Endocrinology and Diabetes Clinic, University Hospital of Heraklion, University of Crete School of Medicine, Voutes, 71500, Heraklion Crete, Crete, Greece
| | - A Pateromichelaki
- Rheumatology and Clinical Immunology, University General Hospital of Heraklion, Crete, Greece
| | - G Betsi
- Endocrinology and Diabetes Clinic, University Hospital of Heraklion, University of Crete School of Medicine, Voutes, 71500, Heraklion Crete, Crete, Greece
| | - V Daraki
- Endocrinology and Diabetes Clinic, University Hospital of Heraklion, University of Crete School of Medicine, Voutes, 71500, Heraklion Crete, Crete, Greece
| | - N Sbyrakis
- Emergency Department, University General Hospital of Heraklion, Crete, Greece
| | - K Spanakis
- Interventional Radiology Unit, Department of Medical Imaging, University General Hospital of Heraklion, Crete, Greece
| | - G Bertsias
- Rheumatology and Clinical Immunology, University General Hospital of Heraklion, Crete, Greece
| | - P I Sidiropoulos
- Rheumatology and Clinical Immunology, University General Hospital of Heraklion, Crete, Greece
| | - Paraskevi Xekouki
- Endocrinology and Diabetes Clinic, University Hospital of Heraklion, University of Crete School of Medicine, Voutes, 71500, Heraklion Crete, Crete, Greece.
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Gehlen R, Vandevelde A, de Laat B, Devreese KMJ. Application of the thrombin generation assay in patients with antiphospholipid syndrome: A systematic review of the literature. Front Cardiovasc Med 2023; 10:1075121. [PMID: 37057100 PMCID: PMC10089302 DOI: 10.3389/fcvm.2023.1075121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 02/20/2023] [Indexed: 03/30/2023] Open
Abstract
BackgroundThe antiphospholipid syndrome (APS) is classified by the presence of antiphospholipid antibodies (aPL) and thrombotic and/or adverse obstetric outcomes. The diagnosis and risk assessment of APS is challenging. This systematic review investigated if the thrombin generation (TG) assay could be helpful for APS diagnosis and risk assessment.MethodsA systemic review was performed by searching two databases (MEDLINE and Embase) until March 31, 2022, using a search strategy with two concepts: APS and TG, and related keywords. Two reviewers independently screened the articles based on predefined inclusion and exclusion criteria. Data extraction and quality assessment with the Newcastle-Ottawa Scale (NOS) were performed independently. Synthesis Without Meta-analysis guidelines were followed for data synthesis reporting.ResultsFourteen studies with 677 APS and 1,349 control subjects were included with variable quality according to the NOS. Twelve studies measured TG via the calibrated automated thrombogram (CAT) method using a fluorogenic substrate, whereas two used a chromogenic substrate-based TG assay. One study compared the CAT assay to the fully-automated ST Genesia® (Stago, France). Two studies initiated TG using platelet-rich plasma, whereas the rest of the studies used platelet-poor plasma. Resistance to activated protein C (aPC) was examined in ten studies. They reported a significant increase in aPC-resistance in APS patients compared to healthy controls, aPL-carriers, and thrombotic controls. Based on two studies, the prevalence of aPC-resistance was higher in APS patients compared to healthy controls and thrombotic controls with odds ratios of 5.9 and 6.8–12.8, respectively (p < 0.05). In contrast, no significant difference in aPC-resistance was found between APS patients and autoimmune disease controls. Furthermore, 7/14 studies reported TG-parameters including peak height, endogenous thrombin potential, lag time, and time to peak, but these outcomes were highly variable between studies. Furthermore, TG methodology between studies differed greatly, impacting the comparability of the studies.ConclusionaPC-resistance measured with TG was increased in APS patients compared to healthy and thrombotic controls, but the diagnostic and prognostic value is unclear compared to current diagnostic strategies. Studies of other TG-parameters were heterogeneous and more research is needed to identify their potential added value in APS diagnosis.Systematic Review Registrationhttps://www.PROSPERO/, identifier: CRD42022308363
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Affiliation(s)
- Rachel Gehlen
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Arne Vandevelde
- Coagulation Laboratory, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Bas de Laat
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Katrien M. J. Devreese
- Coagulation Laboratory, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Correspondence: Katrien M. J. Devreese
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Khalil DN, Prieto González-Albo I, Rosen L, Lillie T, Stacey A, Parfitt L, Soff GA. A tumor-selective adenoviral vector platform induces transient antiphospholipid antibodies, without increased risk of thrombosis, in phase 1 clinical studies. Invest New Drugs 2023; 41:317-323. [PMID: 36897458 PMCID: PMC9999314 DOI: 10.1007/s10637-023-01345-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 02/22/2023] [Indexed: 03/11/2023]
Abstract
Tumor-selective viruses are a novel therapeutic approach for treating cancer. Tumor-Specific Immuno Gene Therapy (T-SIGn) vectors are tumor-selective adenoviral vectors designed to express immunomodulatory transgenes. Prolonged activated partial thromboplastin time (aPTT), associated with the presence of antiphospholipid antibodies (aPL), has been observed in patients with viral infections, and following administration of adenovirus-based medicines. aPL may be detected as lupus anticoagulant (LA), anti-cardiolipin (aCL) and/or anti-beta 2 glycoprotein antibodies (aβ2GPI). No subtype alone is definitive for development of clinical sequalae, however, patients who are 'triple positive' have a greater thrombotic risk. Additionally, isolated aCL and aβ2GPI IgM do not appear to add value in thrombotic association to aPL positivity, rather IgG subtypes must also be present to confer an increased risk. Here we report induction of prolonged aPTT and aPL in patients from eight Phase 1 studies who were treated with adenoviral vectors (n = 204). Prolonged aPTT (≥ Grade 2) was observed in 42% of patients, with a peak at 2-3 weeks post-treatment and resolution within ~ 2 months. Among patients with aPTT prolongation, LA, but not aCL IgG nor aβ2GPI IgG, was observed. The transience of the prolongation and discordance between positive LA and negative aCL/aβ2GPI IgG assays is not typical of a prothrombotic state. Among the patients with prolonged aPTT there was no evidence of an increased rate of thrombosis. These findings elucidate the relationship between viral exposure and aPL in the context of clinical trials. They suggest a framework in which hematologic changes can be monitored in patients receiving similar treatments.Clinical trial registration:NCT02028442, NCT02636036, NCT02028117, NCT03852511, NCT04053283, NCT05165433, NCT04830592, NCT05043714.
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Affiliation(s)
- Danny N Khalil
- Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY, 10065, USA. .,Parker Institute for Cancer Immunotherapy, New York, NY, USA. .,Weill Cornell Medicine, New York, NY, USA.
| | | | - Lee Rosen
- UCLA Medical Center, Los Angeles, CA, USA
| | | | | | | | - Gerald A Soff
- University of Miami Health System/Sylvester Comprehensive Cancer Center, Miami, FL, USA
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Abstract
Antiphospholipid syndrome (APS) is a thrombo-inflammatory disease propelled by circulating autoantibodies that recognize cell surface phospholipids and phospholipid binding proteins. The result is an increased risk of thrombotic events, pregnancy morbidity, and various other autoimmune and inflammatory complications. Although antiphospholipid syndrome was first recognized in patients with lupus, the stand alone presentation of antiphospholipid syndrome is at least equally common. Overall, the diagnosis appears to affect at least one in 2000 people. Studies of antiphospholipid syndrome pathogenesis have long focused on logical candidates such as coagulation factors, endothelial cells, and platelets. Recent work has shed light on additional potential therapeutic targets within the innate immune system, including the complement system and neutrophil extracellular traps. Vitamin K antagonists remain the mainstay of treatment for most patients with thrombotic antiphospholipid syndrome and, based on current data, appear superior to the more targeted direct oral anticoagulants. The potential role of immunomodulatory treatments in antiphospholipid syndrome management is receiving increased attention. As for many systemic autoimmune diseases, the most important future direction is to more precisely identify mechanistic drivers of disease heterogeneity in pursuit of unlocking personalized and proactive treatments for patients.
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Affiliation(s)
- Jason S Knight
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - D Ware Branch
- James R. and Jo Scott Research Chair, Department of Obstetrics and Gynecology, University of Utah Health and Intermountain Healthcare, Salt Lake City, Utah, USA
| | - Thomas L Ortel
- Division of Hematology, Departments of Medicine and Pathology, Duke University, Durham, North Carolina, USA
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10
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Root-Bernstein R. From Co-Infections to Autoimmune Disease via Hyperactivated Innate Immunity: COVID-19 Autoimmune Coagulopathies, Autoimmune Myocarditis and Multisystem Inflammatory Syndrome in Children. Int J Mol Sci 2023; 24:ijms24033001. [PMID: 36769320 PMCID: PMC9917907 DOI: 10.3390/ijms24033001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
Neutrophilia and the production of neutrophil extracellular traps (NETs) are two of many measures of increased inflammation in severe COVID-19 that also accompany its autoimmune complications, including coagulopathies, myocarditis and multisystem inflammatory syndrome in children (MIS-C). This paper integrates currently disparate measures of innate hyperactivation in severe COVID-19 and its autoimmune complications, and relates these to SARS-CoV-2 activation of innate immunity. Aggregated data include activation of Toll-like receptors (TLRs), nucleotide-binding oligomerization domain (NOD) receptors, NOD leucine-rich repeat and pyrin-domain-containing receptors (NLRPs), retinoic acid-inducible gene I (RIG-I) and melanoma-differentiation-associated gene 5 (MDA-5). SARS-CoV-2 mainly activates the virus-associated innate receptors TLR3, TLR7, TLR8, NLRP3, RIG-1 and MDA-5. Severe COVID-19, however, is characterized by additional activation of TLR1, TLR2, TLR4, TLR5, TLR6, NOD1 and NOD2, which are primarily responsive to bacterial antigens. The innate activation patterns in autoimmune coagulopathies, myocarditis and Kawasaki disease, or MIS-C, mimic those of severe COVID-19 rather than SARS-CoV-2 alone suggesting that autoimmunity follows combined SARS-CoV-2-bacterial infections. Viral and bacterial receptors are known to synergize to produce the increased inflammation required to support autoimmune disease pathology. Additional studies demonstrate that anti-bacterial antibodies are also required to account for known autoantigen targets in COVID-19 autoimmune complications.
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Kansuttiviwat C, Niprapan P, Tantiworawit A, Norasetthada L, Rattarittamrong E, Rattanathammethee T, Hantrakool S, Piriyakhuntorn P, Punnachet T, Hantrakun N, Chai-adisaksopha C. Impact of antiphospholipid antibodies on thrombotic events in ambulatory cancer patients. PLoS One 2023; 18:e0279450. [PMID: 36662720 PMCID: PMC9858372 DOI: 10.1371/journal.pone.0279450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/07/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Despite the conflicting data, the positivity of antiphospholipid antibodies (aPL) in cancer patients may be associated with an increased risk of thrombosis. OBJECTIVE To identify the prevalence and impact of aPL on venous thromboembolic events (VTE) and arterial thrombosis (ATE) in ambulatory cancer patients. METHODS In this single-center, prospective cohort study, we enrolled newly diagnosed ambulatory cancer patients receiving chemotherapy. Non-cancer controls were age- and sex-matched. Participants were evaluated for aPL. Primary outcomes were the composite outcome of VTE or ATE and the prevalence of aPL positivity in cancer patients. Secondary outcomes included the risk of VTE and ATE in cancer patients and all-cause mortality at six-month follow-up duration. RESULTS There were 137 cases and 137 controls with mean age of 56.0±12.3 and 55.5±12.1 years, respectively. Cancer patients were more likely to have positive aPL compared to controls, with the risk difference of 9.4% (95%CI 1.5 to 17.5). Composite of ATE or VTE occurred in 9 (6.6%) in cancer patients and 2 (1.5%) in controls. Cancer patients with aPL positivity were associated with higher risk of ATE or VTE (risk ratio [RR] 3.6, 95% CI 1.04-12.4). Positive LA in cancer patients were associated with higher risk of composites of ATE or VTE (RR 5.3 95%CI 1.3-21.0), whereas the anti-β2-GPI positivity were associated with increased risk of VTE (RR 4.7, 95%CI 1.1-19.2). CONCLUSION aPL was more prevalent in active cancer patients and positive aPL in cancer patients was associated with arterial or venous thrombosis.
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Affiliation(s)
| | - Piangrawee Niprapan
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Adisak Tantiworawit
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Lalita Norasetthada
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Ekarat Rattarittamrong
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Thanawat Rattanathammethee
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Sasinee Hantrakool
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Pokpong Piriyakhuntorn
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Teerachat Punnachet
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Nonthakorn Hantrakun
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Chatree Chai-adisaksopha
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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12
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Devreese KMJ. Laboratory Testing for Non-criteria Antiphospholipid Antibodies: Anti-phosphatidylserine/Prothrombin Antibodies (aPS/PT). Methods Mol Biol 2023; 2663:315-327. [PMID: 37204720 DOI: 10.1007/978-1-0716-3175-1_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Since the discovery that antiphospholipid antibodies (aPL) bind to a cofactor at the phospholipid membrane, the proteins beta-2-glycoprotein I (β2GPI) and prothrombin seemed to be the antigens of importance in the antiphospholipid syndrome (APS). Anti-β2GPI antibodies (aβ2GPI) were soon included in the classification criteria, while anti-prothrombin antibodies (aPT) are still regarded as "non-criteria" aPL. Evidence is accumulating that antibodies against prothrombin are clinically relevant and closely associated with APS and the presence of lupus anticoagulant (LA). Among the non-criteria aPL, anti-phosphatidylserine/prothrombin antibodies (aPS/PT) are one of the most frequently studied aPL. More and more studies illustrate the evidence of the pathogenic capacity of these antibodies. aPS/PT IgG and IgM are associated with arterial and venous thrombosis, show an overlap with LA presence, and are frequently present in triple-positive patients, regarded as patients at highest risk for APS-related clinical symptoms. Moreover, the association of aPS/PT with thrombosis increases with higher titers, confirming that presence of aPS/PT consolidates the risk. So far, the added value of aPS/PT on top of the criteria aPL to diagnose APS is not clear with opposing findings in literature. Described in this chapter is the procedure for detecting these antibodies with a commercial ELISA, which can be used to determine the presence of IgG and IgM aPS/PT in human samples. Additionally, general guidelines that will facilitate optimal performance of the aPS/PT assay will be provided.
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Affiliation(s)
- Katrien M J Devreese
- Department of Diagnostic Sciences, Coagulation Laboratory, Ghent University Hospital, Ghent University, Ghent, Belgium.
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13
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Zolyan A, Crawford JR. Brainstem stroke in a patient with systemic lupus erythematosus and triple antiphospholipid antibody profile. BMJ Case Rep 2022; 15:e254147. [PMID: 36572448 PMCID: PMC9806061 DOI: 10.1136/bcr-2022-254147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Anna Zolyan
- Neurology, University of California Irvine, Irvine, California, USA
| | - John Ross Crawford
- Pediatrics, University of California Irvine, Irvine, California, USA
- Pediatrics, Children's Hospital Orange County, Orange, California, USA
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14
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Capecchi M, Abbattista M, Ciavarella A, Uhr M, Novembrino C, Martinelli I. Anticoagulant Therapy in Patients with Antiphospholipid Syndrome. J Clin Med 2022; 11:jcm11236984. [PMID: 36498557 PMCID: PMC9741036 DOI: 10.3390/jcm11236984] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/17/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Antiphospholipid syndrome (APS) is a systemic autoimmune disease characterized by the persistent positivity of antiphospholipid antibodies (aPLA) together with thrombosis or obstetrical complications. Despite their recognized predominant role, aPLA are not sufficient to induce the development of thrombosis and a second hit has been proposed to be necessary. The mainstay of treatment of APS is anticoagulant therapy. However, its optimal intensity in different presentations of the disease remains undefined. Moreover, decision on which patients with aPLA would benefit from an antithrombotic prophylaxis and its optimal intensity are challenging because of the lack of stratification tools for the risk of thrombosis. Finally, decision on the optimal type of anticoagulant drug is also complex because the central pathway responsible for the development of thrombosis is so far unknown and should be carried out on an individual basis after a careful evaluation of the clinical and laboratory features of the patient. This review addresses the epidemiology, physiopathology, diagnosis and management of thrombosis and obstetrical complications in APS, with a special focus on the role of direct oral anticoagulants.
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Affiliation(s)
- Marco Capecchi
- Division of Hematology, Clinica Moncucco, 6900 Lugano, Switzerland
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy
| | - Maria Abbattista
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Alessandro Ciavarella
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Mario Uhr
- Division of Hematology, Clinica Moncucco, 6900 Lugano, Switzerland
- Department of Hematology, Synlab-Suisse, 6900 Lugano, Switzerland
| | - Cristina Novembrino
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Ida Martinelli
- Division of Hematology, Clinica Moncucco, 6900 Lugano, Switzerland
- Correspondence: ; Tel.: +41-91-960-80-81
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15
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Vandevelde A, Chayoua W, de Laat B, Moore GW, Musiał J, Zuily S, Wahl D, Devreese KMJ. Added value of antiphosphatidylserine/prothrombin antibodies in the workup of thrombotic antiphospholipid syndrome: Communication from the ISTH SSC Subcommittee on Lupus Anticoagulant/Antiphospholipid Antibodies. J Thromb Haemost 2022; 20:2136-2150. [PMID: 35713971 DOI: 10.1111/jth.15785] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 06/08/2022] [Accepted: 06/14/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Diagnosis of antiphospholipid syndrome (APS) requires persistent presence of lupus anticoagulant (LAC), anticardiolipin (aCL) IgG/IgM, or anti-β2 glycoprotein I (aβ2GPI) IgG/IgM antibodies. Other antiphospholipid antibodies (aPL) such as antiphosphatidylserine/prothrombin antibodies (aPS/PT) are promising in assessment of thrombotic APS (TAPS). AIM To evaluate the added value of aPS/PT IgG and IgM in TAPS. MATERIAL AND METHODS aPS/PT IgG/IgM, aCL IgG/IgM, aβ2GPI IgG/IgM, and LAC were determined in 757 patients (TAPS and controls). aPS/PT cut-off values were calculated, and aPS/PT titers and positivity were compared between TAPS and controls, type of thrombosis, and antibody profiles. Likelihood ratios (LR), odds ratios (OR), and aPL score were determined. RESULTS aPS/PT IgG and IgM were associated with TAPS and triple positivity. In-house calculated cut-offs were higher for IgM (43 units), compared to manufacturer's cut-off (30 units). Thresholds of 90 (IgG) and 200 (IgM) units were determined as high-titer cut-off. Higher aPS/PT titers were observed in triple positive patients and showed higher LR and OR for TAPS. aPS/PT was independently associated with TAPS when adjusted for aCL/aβ2GPI, but not when adjusted for LAC. In isolated LAC positive patients, aPS/PT was positive in 27.1% TAPS patients and in 77.3% patients with autoimmune disease. Diagnostic value of aPL score did not differ with and without including aPS/PT. CONCLUSION aPS/PT positivity, especially with high antibody titer, is associated with TAPS diagnosis. Analysis on top of current laboratory criteria is not essential in TAPS diagnosis, but aPS/PT could be useful in patients with thrombosis and a double positive aPL profile (aCL+/aβ2GPI+).
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Affiliation(s)
- Arne Vandevelde
- Coagulation Laboratory, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Walid Chayoua
- Synapse Research Institute, Maastricht, the Netherlands
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, the Netherlands
- Department of Clinical Chemistry and Laboratory Medicine, Medisch Spectrum Twente, Enschede, the Netherlands
| | - Bas de Laat
- Synapse Research Institute, Maastricht, the Netherlands
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Gary W Moore
- Department of Haemostasis and Thrombosis, Viapath Analytics, Guy's & St. Thomas' Hospitals, London, UK
- Department of Haematology, Specialist Haemostasis Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Faculty of Science and Technology, Middlesex University, London, UK
| | - Jacek Musiał
- Department of Internal Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Stéphane Zuily
- Vascular Medicine Division and Regional Competence Center for Rare Vascular and Systemic Autoimmune Diseases, Centre Hospitalier Regional Universitaire de Nancy, Université de Lorraine, Inserm, DCAC, Nancy, France
| | - Denis Wahl
- Vascular Medicine Division and Regional Competence Center for Rare Vascular and Systemic Autoimmune Diseases, Centre Hospitalier Regional Universitaire de Nancy, Université de Lorraine, Inserm, DCAC, Nancy, France
| | - Katrien M J Devreese
- Coagulation Laboratory, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
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16
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Determination of Thrombogenicity Levels of Various Antiphospholipid Antibodies by a Modified Thrombin Generation Assay in Patients with Suspected Antiphospholipid Syndrome. Int J Mol Sci 2022; 23:ijms23168973. [PMID: 36012233 PMCID: PMC9409152 DOI: 10.3390/ijms23168973] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 11/23/2022] Open
Abstract
Antiphospholipid syndrome (APS) is a hypercoagulable state accompanied by the presence of heterogeneous antiphospholipid antibodies (aPL), which nonspecifically affect hemostasis by the presence of lupus anticoagulans (LA), anticardiolipin antibodies (aCL), antibodies against β2-glycoprotein-I (anti-β2GPI), but also non-criteria antibodies such as antibodies against β2-glycoprotein-I domain I (anti-DI), anti-phosphatidylserine/prothrombin (anti-PS/PT), anti-annexin V, and many others. The main target of the antibodies is the activated protein C (APC) system, the elimination of which can manifest itself as a thrombotic complication. The aim of this study was to determine the thrombogenicity of antibodies using a modified protein C-activated thrombin generation assay (TGA) on a group of 175 samples suspected of APS. TGA was measured with/without APC and the ratio of both measurements was evaluated (as for APC resistance), where a cut-off was calculated ≤4.5 (90th percentile) using 21 patients with heterozygous factor V Leiden mutation (FV Leiden heterozygous). Our study demonstrates the well-known fact that multiple positivity of different aPLs is a more severe risk for thrombosis than single positivity. Of the single antibody positivity, LA antibodies are the most serious (p value < 0.01), followed by aCL and their subgroup anti-DI (p value < 0.05). Non-criteria antibodies anti-annexin V and anti-PT/PS has a similar frequency occurrence of thrombogenicity as LA antibodies but without statistical significance or anti-β2GPI1 positivity. The modified TGA test can help us identify patients in all groups who are also at risk for recurrent thrombotic and pregnancy complications; thus, long-term prophylactic treatment is appropriate. For this reason, it is proving increasingly beneficial to include the determination antibodies in combination with modified TGA test.
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17
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Lee Y, Gu JY, Kim HK. Real-world evidence of lupus anticoagulant testing: simultaneous positivity of diluted Russell's viper venom time and silica clotting time increases thrombotic risk prediction. J Thromb Thrombolysis 2022; 54:318-322. [PMID: 35841477 DOI: 10.1007/s11239-022-02675-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/15/2022] [Indexed: 11/25/2022]
Abstract
Lupus anticoagulant (LA) is composed of heterogeneous autoantibodies, which have a close association with thrombotic events. Due to its heterogeneity, two methods for increasing sensitivity are recommended for LA. An investigation of the thrombotic risk and anticardiolipin (aCL) and anti-β2-glycoprotein I (aB2GPI) antibody profiles was conducted based on the results of using two parallel methods (dilute Russell viper venom time (dRVVT), silica clotting time (SCT)) in a real world clinical laboratory. Of 5120 patients, 684 patients (13%) were LA positive, and 422 patients (8%) experienced thrombotic events including pregnancy complication. Development of thrombotic events was more likely to occur in patients who were positive for both dRVVT and SCT compared with those who were positive for dRVVT or SCT only. In addition, significantly higher positive rates of aCL and aB2GPI and the persistently positive rate of LA at intervals of 12 weeks or longer were observed in patients who were positive for both dRVVT and SCT compared with those who were positive for dRVVT or SCT only. Considering three laboratory tests (LA, aCL, and aB2GPI), high thrombotic risk was observed for patients with both dRVVT and SCT positive LA results. A report on LA results that divides LA positive into two types (LA-single positive and LA-both positive) may be beneficial to clinicians in detection of high-risk thrombotic patients.
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Affiliation(s)
- Youngeun Lee
- Department of Laboratory Medicine, Chung-Ang University Medical Center, Seoul, Republic of Korea
| | - Ja-Yoon Gu
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, 03080, Seoul, Republic of Korea
| | - Hyun Kyung Kim
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, 03080, Seoul, Republic of Korea.
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18
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Abstract
The diagnosis of antiphospholipid syndrome (APS) relies on the detection of circulating antiphospholipid antibodies (aPL). Currently, lupus anticoagulant (LA), anticardiolipin (aCL), and anti-β2-glycoprotein I antibodies (aβ2GPI) IgG or IgM are the laboratory criteria if persistently present over time. As aCL and aβ2GPI are two out of the three laboratory criteria, the detection of aPL by solid phase assays is an essential step in the diagnosis of APS. Advancement has been made to resolve some of the methodological challenges of aCL and aβ2GPI assays by providing guidelines how to measure aPL, as well as to gain a better understanding of their diagnostic role. However, solid phase assays for aCL and aβ2GPI still show substantive inter-assay differences, resulting in disagreement concerning positive/negative results, but also differences in titer of antibodies. This hampers the semiquantitative classification into low-medium-high positivity. The non-criteria aPL, such as antibodies against the domain one of β2GPI and anti-phosphatidylserine/prothrombin antibodies (aPS/PT) have roles in confirming the risk in APS, and can be useful, especially in patients with incomplete antibody profiles.
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Affiliation(s)
- Katrien M J Devreese
- Department of Diagnostic Sciences, Coagulation Laboratory, Ghent University Hospital, Ghent University, Ghent, Belgium
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19
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Vandevelde A, Devreese KMJ. Laboratory Diagnosis of Antiphospholipid Syndrome: Insights and Hindrances. J Clin Med 2022; 11:jcm11082164. [PMID: 35456258 PMCID: PMC9025581 DOI: 10.3390/jcm11082164] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/08/2022] [Indexed: 12/11/2022] Open
Abstract
Diagnosis of antiphospholipid syndrome (APS) requires the presence of a clinical criterion (thrombosis and/or pregnancy morbidity), combined with persistently circulating antiphospholipid antibodies (aPL). Currently, laboratory criteria aPL consist of lupus anticoagulant (LAC), anticardiolipin antibodies (aCL) IgG/IgM, and anti-β2 glycoprotein I antibodies (aβ2GPI) IgG/IgM. Diagnosis and risk stratification of APS are complex and efforts to standardize and optimize laboratory tests have been ongoing since the initial description of the syndrome. LAC detection is based on functional coagulation assays, while aCL and aβ2GPI are measured with immunological solid-phase assays. LAC assays are especially prone to interference by anticoagulation therapy, but strategies to circumvent this interference are promising. Alternative techniques such as thrombin generation for LAC detection and to estimate LAC pathogenicity have been suggested, but are not applicable yet in routine setting. For aCL and aβ2GPI, a lot of different assays and detection techniques such as enzyme-linked immunosorbent and chemiluminescent assays are available. Furthermore, a lack of universal calibrators or standards results in high variability between the different solid-phase assays. Other non-criteria aPL such as anti-domain I β2 glycoprotein I and antiphosphatidylserine/prothrombin antibodies have been suggested for risk stratification purposes in APS, while their added value to diagnostic criteria seems limited. In this review, we will describe laboratory assays for diagnostic and risk evaluation in APS, integrating applicable guidelines and classification criteria. Current insights and hindrances are addressed with respect to both laboratory and clinical implications.
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Affiliation(s)
- Arne Vandevelde
- Department of Diagnostic Sciences, Ghent University, 9000 Gent, Belgium;
- Coagulation Laboratory, Ghent University Hospital, 9000 Gent, Belgium
| | - Katrien M. J. Devreese
- Department of Diagnostic Sciences, Ghent University, 9000 Gent, Belgium;
- Coagulation Laboratory, Ghent University Hospital, 9000 Gent, Belgium
- Correspondence:
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20
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Ho YC, Brake SJ, Ahuja K, Acott N, Tiao J, Baker R, Adams MJ. IgG fractions from patients with antiphospholipid syndrome and systemic lupus erythematosus bind to platelets, but do not affect collagen-induced platelet activation. Biotech Histochem 2022; 97:604-615. [PMID: 35394397 DOI: 10.1080/10520295.2022.2049878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Anti-beta-2 glycoprotein 1 (anti-β2GP1) is an antiphospholipid antibody found in patients with antiphospholipid syndrome (APS) and systemic lupus erythematosus (SLE). Its presence commonly is associated with thrombosis; however, the mechanisms of interaction of anti-β2GP1 antibodies and platelets remain unclear. We investigated the effects of APS and SLE patient-derived IgG fractions on collagen-mediated platelet aggregation and examined the binding of patient-derived IgG to platelets before and after activation by collagen. IgG fractions, 150, 200, 300 or 350 µg/ml, isolated from 11 patients with APS and SLE were incubated with two sets of platelet-rich plasma (PRP) in the incubation wells of an aggregometer. The first set was activated by collagen and the other set was incubated for an additional 10 min. All platelets were collected by centrifugation and fixed in cell blocks. We assessed binding of IgG to platelets using immunocytochemistry (ICC). Patient-derived IgG fractions did not affect collagen-induced platelet aggregation. ICC staining using anti-human IgG antibodies demonstrated that patient-derived IgG fractions had greater affinity for non-activated platelets than those activated by 0.75 µg/ml collagen. Patient-derived IgG fractions bound to the surface of platelets and potentially could be internalized by platelets. IgG fractions from APS and SLE patients may sensitize non-activated platelets, which could increase platelet reactivity and thrombotic risk in patients. We did not detect secondary effects of patient-derived IgG fractions.
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Affiliation(s)
- Y C Ho
- School of Health Sciences, University of Tasmania, Launceston, Tasmania, Australia
| | - S J Brake
- School of Health Sciences, University of Tasmania, Launceston, Tasmania, Australia
| | - Kdk Ahuja
- School of Health Sciences, University of Tasmania, Launceston, Tasmania, Australia
| | - N Acott
- PathWest Laboratory Medicine Western Australia, Nedlands, Western Australia, Australia
| | - J Tiao
- Western Australian Centre for Thrombosis and Haemostasis, Murdoch University, Murdoch, Western Australia, Australia
| | - R Baker
- Western Australian Centre for Thrombosis and Haemostasis, Murdoch University, Murdoch, Western Australia, Australia
| | - M J Adams
- College of Science, Health, Engineering and Education, Murdoch University, Murdoch, Western Australia, Australia
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21
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Dabit JY, Valenzuela-Almada MO, Vallejo-Ramos S, Duarte-García A. Epidemiology of Antiphospholipid Syndrome in the General Population. Curr Rheumatol Rep 2022; 23:85. [PMID: 34985614 PMCID: PMC8727975 DOI: 10.1007/s11926-021-01038-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2021] [Indexed: 11/24/2022]
Abstract
Purpose of Review The epidemiology of antiphospholipid syndrome (APS) is poorly understood. Here, we review the current understanding of the epidemiology of antiphospholipid syndrome in the general population and the frequency of antiphospholipid antibodies in the general population in patients with obstetric morbidity, arterial events, and venous thromboembolism. Recent Findings There have been few population-based studies that estimated the prevalence and incidence of APS. The estimated incidence and prevalence among most these studies ranged between 1 and 2 cases per 100,000 and 40 and 50 cases per 100,000 respectively. The prevalence of antiphospholipid antibodies in patients with obstetric morbidity was 6–9%, while in arterial events and venous thromboembolism is 9–10%. However, this data remains limited. Mortality of patients with APS is 50–80% higher than the general population. Summary The epidemiology of APS has been difficult to elucidate. Population-based studies patients with diverse age, racial, and ethnic backgrounds are needed.
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Affiliation(s)
- Jesse Y. Dabit
- Division of Rheumatology, Mayo Clinic, Rochester, MN USA
| | | | | | - Alí Duarte-García
- Division of Rheumatology, Mayo Clinic, Rochester, MN USA
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA
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22
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Islabão AG, Trindade VC, da Mota LMH, Andrade DCO, Silva CA. Managing Antiphospholipid Syndrome in Children and Adolescents: Current and Future Prospects. Paediatr Drugs 2022; 24:13-27. [PMID: 34904182 PMCID: PMC8667978 DOI: 10.1007/s40272-021-00484-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/03/2021] [Indexed: 11/28/2022]
Abstract
Pediatric antiphospholipid syndrome (APS) is a rare acquired multisystem autoimmune thromboinflammatory condition characterized by thrombotic and non-thrombotic clinical manifestations. APS in children and adolescents typically presents with large-vessel thrombosis, thrombotic microangiopathy, and, rarely, obstetric morbidity. Non-thrombotic clinical manifestations are frequently seen in pediatric APS and may be present even before the vascular thrombotic events occur. We review insights into the pathogenesis of APS and discuss potential targets for therapy. The identification of multiple immunologic abnormalities in patients with APS reveals molecular targets for current or future treatment. Management strategies, especially for APS in adolescents, require screening for additional prothrombotic risk factors and consideration of counseling regarding contraceptive strategies, lifestyle recommendations, treatment adherence, and mental health issues associated with this autoimmune thrombophilia. The main goal of therapy in pediatric APS is the prevention of thrombosis. The management of acute thrombosis events in children and adolescents is the same as for primary APS, which involves isolated occurrences, and secondary APS, which is seen in association with another autoimmune disease, e.g., systemic lupus erythematosus. A pediatric hematologist should be consulted so other differential thrombophilic conditions can be eliminated. Therapy includes unfractionated heparin or low-molecular-weight heparin followed by vitamin K antagonists. Treatment of catastrophic APS involves triple therapy (anticoagulation, intravenous corticosteroid pulse therapy, and plasma exchange) and may include intravenous immunoglobulin for children and adolescents with this condition. New drugs such as eculizumab and sirolimus seem to be promising drugs for APS.
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Affiliation(s)
- Aline Garcia Islabão
- Pediatric Rheumatology Unit, Hospital da Criança de Brasília Jose Alencar, Brasília, DF Brazil ,Programa de Pós-graduação em Ciências Médicas, Faculdade de Medicina, Universidade de Brasília, Brasília, DF Brazil
| | - Vitor Cavalcanti Trindade
- Faculdade de Medicina, Children and Adolescent Institute, Hospital das Clinicas HCFMUSP, Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647-Cerqueira César, São Paulo, SP 05403-000 Brazil
| | - Licia Maria Henrique da Mota
- Programa de Pós-graduação em Ciências Médicas, Faculdade de Medicina, Universidade de Brasília, Brasília, DF Brazil ,Rheumatology Unit, Hospital Universitário de Brasília, Universidade de Brasília, Brasília, Brazil
| | | | - Clovis Artur Silva
- Faculdade de Medicina, Children and Adolescent Institute, Hospital das Clinicas HCFMUSP, Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647-Cerqueira César, São Paulo, SP, 05403-000, Brazil. .,Rheumatology Division, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil.
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Bertin D, Camoin-Jau L, Veit V, Resseguier N, Lambert M, Buffet Delmas P, Heim X, Mège JL, Morange PE, Bardin N. Single or triple positivity for antiphospholipid antibodies in "carriers" or symptomatic patients: Untangling the knot. J Thromb Haemost 2021; 19:3018-3030. [PMID: 34469630 DOI: 10.1111/jth.15518] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Although the triple positivity of antiphospholipid antibodies (aPL) is important for classifying high-risk patients, interpretation of aPL positivity, namely the lupus anticoagulant (LA), anti-cardiolipin (aCL), and anti-beta2-glycoprotein I autoantibodies (aB2GPI) remains challenging for thrombotic risk stratification. OBJECTIVE To compare biological and clinical data between triple aPL- and single aCL-positive patients. METHODS Of the 6500 patients assayed for aPL in daily practice within 3 years, we retrospectively analyzed data from 161 patients that were either triple aPL-positive or single aCL-positive with 5 years' follow-up for 121 of them. RESULTS Whatever triple or single aPL positivity, we found a high prevalence of "carrier" patients (43%), which led us to question the clinical relevance of the triple aPL positivity. This result also justified the need to identify high-risk profiles. In asymptomatic patients, high risk of thrombotic events is associated with (1) two positive tests for LA or a Rosner Index >27 combined with both aCL-IgG and aB2GPI-IgG positivity, (2) persistent single aCL positivity without an associated autoimmune disease. In symptomatic patients, we demonstrated differences in the phenotype of patients and their therapeutic anticoagulation according to the number of positive aPL but we did not find differences in the number of clinical events, recurrence, or relapse, even in the absence of treatment. CONCLUSION This study shows that the thrombotic risk does not necessarily increase with the number of positive tests and raises the question of the therapeutic management of single aCL-positive patients.
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Affiliation(s)
- Daniel Bertin
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d'immunologie, Marseille, France
- Aix-Marseille Univ, CNRS, INP, Inst Neurophysiopathol, Marseille, France
| | - Laurence Camoin-Jau
- AP-HM, Hôpital de la Timone, Pôle de Biologie, Service d'hématologie, Marseille, France
- Aix-Marseille Univ, IRD, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Véronique Veit
- Assistance Publique de Marseille, Médecine Interne, Unité de Médecine Aigue Polyvalente (UMAP), Marseille, France
| | - Noémie Resseguier
- Aix-Marseille Univ, Unité de Recherche EA 3279, Service de Santé Publique, Marseille, France
| | - Mathilde Lambert
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d'immunologie, Marseille, France
| | - Pauline Buffet Delmas
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d'immunologie, Marseille, France
| | - Xavier Heim
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d'immunologie, Marseille, France
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
| | - Jean-Louis Mège
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d'immunologie, Marseille, France
- Aix-Marseille Univ, IRD, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Pierre-Emmanuel Morange
- AP-HM, Hôpital de la Timone, Pôle de Biologie, Service d'hématologie, Marseille, France
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
| | - Nathalie Bardin
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d'immunologie, Marseille, France
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
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24
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Devreese KM, Zuily S, Meroni PL. Role of antiphospholipid antibodies in the diagnosis of antiphospholipid syndrome. J Transl Autoimmun 2021; 4:100134. [PMID: 34816113 PMCID: PMC8592860 DOI: 10.1016/j.jtauto.2021.100134] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 11/05/2021] [Indexed: 01/07/2023] Open
Abstract
The diagnosis of antiphospholipid syndrome (APS) relies on the detection of antiphospholipid antibodies (aPL). Currently, lupus anticoagulant (LA), anticardiolipin (aCL), and antibeta2-glycoprotein I antibodies (aβ2GPI) IgG or IgM are included as laboratory criteria, if persistently present. LAC measurement remains a complicated procedure with many pitfalls and interfered by anticoagulant therapy. Solid-phase assays for aCL and aβ2GPI show interassay differences. These methodological issues make the laboratory diagnosis of APS challenging. In the interpretation of aPL results, antibody profiles help in identifying patients at risk. Other aPL, such as antibodies against the domain I of beta2-glycoprotein (aDI) and antiphosphatidylserine-prothrombin (aPS/PT) antibodies have been studied in the last years and may be useful in risk stratification of APS patients. Because of the methodological shortcomings of immunological and clotting assays, these non-criteria aPL may be useful in patients with incomplete antibody profiles to confirm or exclude the increased risk profile. This manuscript will focus on the laboratory aspects, the clinical relevance of assays and interpretation of aPL results in the diagnosis of APS. The presence of antiphospholipid antibodies (aPL) define the diagnosis of the antiphospholipid syndrome (APS). Laboratory criteria are lupus anticoagulant, anticardiolipin (aCL), and antibeta2-glycoprotein I antibodies (aβ2GPI) IgG/IgM. Lupus anticoagulant measurement, as well as solid phase assays for aCL and aβ2GPI, show methodological challenges. Antibodies against domain I of β2GPI (aDI) and antiphosphatidylserine-prothrombin (aPS/PT) antibodies are non-criteria aPL. aDI and aPS/PT may be useful in risk stratification of APS patients.
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Affiliation(s)
- Katrien M.J. Devreese
- Coagulation Laboratory, Ghent University Hospital, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Corresponding author. Coagulation Laboratory, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Gent, Belgium.
| | - Stéphane Zuily
- Université de Lorraine, Inserm, DCAC, Vascular Medicine Division and Regional Competence Center for Rare Vascular and Systemic Autoimmune Diseases, Centre Hospitalier Regional Universitaire de Nancy, 54000, Nancy, France
| | - Pier Luigi Meroni
- Experimental Laboratory of Immunological and Rheumatologic Researches, Istituto Auxologico Italiano–Istituto di Ricovero e Cura a Carattere Scientifico, Milano, Italy
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25
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Chinnaraj M, Pengo V, Pozzi N. A Novel ELISA Assay for the Detection of Anti-Prothrombin Antibodies in Antiphospholipid Syndrome Patients at High Risk of Thrombosis. Front Immunol 2021; 12:741589. [PMID: 34567006 PMCID: PMC8455811 DOI: 10.3389/fimmu.2021.741589] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 08/25/2021] [Indexed: 12/03/2022] Open
Abstract
Autoantibodies targeting prothrombin (aPT) can be found in antiphospholipid syndrome (APS) patients. However, their detection has proven difficult to standardize. Here, we developed a new ELISA assay to improve the identification of aPT and compared its performance with currently available anti-phosphatidylserine/prothrombin antibodies (aPS/PT) and autoantibodies targeting prothrombin bound to the plastic plate (aPT-A) assays using a cohort of 27 APS patients at high risk of thrombosis. We generated a novel prothrombin variant, ProTS525A-Biot, carrying an artificial tag at the C-terminus suitable for site-specific biotinylation and added the mutation S525A to improve stability. ProTS525A-Biot was immobilized to neutravidin-coated plates at the desired density and with a defined orientation, i.e., pointing the N-terminal fragment-1 toward the solvent. Antibodies against ProTS525A-Biot (aPT-Bio) were found in 24 out of 27 triple-positive APS patients (88%). When compared to aPS/PT and aPT-A, aPT-Bio showed an excellent linear correlation with aPS/PT (R2 = 0.85) but not with aPT-A (R2 = 0.40). Since aPS/PT but not aPT-A are an emerging biomarker of thrombosis in APS, this method may find utility for detecting pathogenic aPT in APS but also other prothrombotic conditions such as COVID-19.
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Affiliation(s)
- Mathivanan Chinnaraj
- Edward A. Doisy Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St. Louis, MO, United States
| | - Vittorio Pengo
- Thrombosis Research Laboratory, Department of Cardiac-Thoracic-Vascular Sciences and Public Health, University of Padova, Padua, Italy.,Arianna Foundation on Anticoagulation, Bologna, Italy
| | - Nicola Pozzi
- Edward A. Doisy Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St. Louis, MO, United States
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Li X, Shopit A, Wang J. Biochemical and clinical predictors in pregnant women with antiphospholipid syndrome and systemic lupus erythematosus: comprehensive update. Arch Gynecol Obstet 2021; 304:1153-1160. [PMID: 34390384 DOI: 10.1007/s00404-021-06178-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 08/04/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Autoimmune diseases as antiphospholipid syndrome (APS) and systemic lupus erythematosus (SLE) could cause many maternal complications. The most common maternal complications of autoimmune diseases are lupus flare, hypertension, nephritis, preeclampsia (PE), eclampsia, and poor pregnancy outcomes which including preterm delivery and pregnancy loss. Only the lupus anticoagulant in the greatest prospective multicenter study has been associated with adverse pregnancy outcomes of the APS. PURPOSE This review aims to provide a comprehensive update for predictors in pregnant women with APS/SLE. METHODS These data have been collected from clinical and pathological studies, systematic reviews, and meta-analysis. RESULTS In recent years the SLE and APS demonstrated to have different and valuable clinical and biomarker predictors for the pregnancy outcome. Treatment of pregnant women with APS is low molecular weight heparin (LMWH) and aspirin; however, around 75% of this management is considered successful. CONCLUSION This review summarizes recent research that focuses on biochemical and clinical predictors of adverse pregnancy outcomes (APOs) of pregnant women with SLE and APS. Furthermore, we have collected more evidence that confirms the safety and efficacy of hydroxychloroquine (HCQ) preventing APOs.
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Affiliation(s)
- Xiaodong Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116044, China
| | - Abdullah Shopit
- Department of Pharmacology, Academic Integrated Medicine and College of Pharmacy, Dalian Medical University, Dalian, 116044, China
| | - Jingmin Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116044, China.
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27
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Hu C, Li S, Xie Z, You H, Jiang H, Shi Y, Qi W, Zhao J, Wang Q, Tian X, Li M, Zhao Y, Zeng X. Comparison of Different Test Systems for the Detection of Antiphospholipid Antibodies in a Chinese Cohort. Front Immunol 2021; 12:648881. [PMID: 34276646 PMCID: PMC8283786 DOI: 10.3389/fimmu.2021.648881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 06/17/2021] [Indexed: 11/13/2022] Open
Abstract
Background Diagnosis of antiphospholipid syndrome (APS) is based on the positivity of laboratory criteria antiphospholipid antibodies (aPLs). Test results for aPLs could be contradictory among different detection methods as well as commercial manufacturers. This study aimed to assess and compare the diagnostic and analytic performances of four commercial assays prevalently used in China. Methods A total of 313 patients including 100 patients diagnosed with primary APS, 52 with APS secondary to SLE, 71 with SLE, and 90 health controls were recruited. Serum IgG, IgM, and IgA for aCL, and aβ2GPI antibodies were detected with two ELISA and two CLIA systems, and test system with the best diagnostic value was explored of its correlation with key clinical features. Results CLIA by YHLO Biotech Co. was considered as the system with the best predictive power, where 58.55 and 57.89% of APS patients were positive for aCL or aβ2GPI for at least one antibody (IgG or IgM or IgA). Overall, CLIA showed better performance characteristics than traditional ELISA test systems. Conclusion CLIA was considered as a better platform for aPL detection in APS diagnosis. A combination of other detection platforms could assist in differential diagnosis as well as in identifying high-risk patients.
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Affiliation(s)
- Chaojun Hu
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Siting Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Zhijuan Xie
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Hanxiao You
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Hui Jiang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Yu Shi
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Wanting Qi
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Jiuliang Zhao
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Qian Wang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Xinping Tian
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Mengtao Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Yan Zhao
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Xiaofeng Zeng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
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Pregnolato F, Gerosa M, Raimondo MG, Comerio C, Bartoli F, Lonati PA, Borghi MO, Acaia B, Ossola MW, Ferrazzi E, Trespidi L, Meroni PL, Chighizola CB. EUREKA algorithm predicts obstetric risk and response to treatment in women with different subsets of anti-phospholipid antibodies. Rheumatology (Oxford) 2021; 60:1114-1124. [PMID: 32441742 DOI: 10.1093/rheumatology/keaa203] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/30/2020] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES aPL, the serum biomarkers of APS, are the most common acquired causes of pregnancy morbidity (PM). This study investigates the impact of aPL positivity fulfilling classification criteria ('criteria aPL') and at titres lower than thresholds considered by classification criteria ('low-titre aPL') on PM and assesses the effectiveness of low-dose aspirin (LDASA), low molecular weight heparin (LMWH) and HCQ in reducing the probability of PM (PPM). METHODS Longitudinal data on 847 pregnancies in 155 women with persistent aPL at any titre and 226 women with autoimmune diseases and negative aPL were retrospectively collected. A generalized estimating equations model for repeated measures was applied to quantify PPM under different clinical situations. RESULTS EUREKA is a novel algorithm that accurately predicts the risk of aPL-associated PM by considering aPL titres and profiles. aPL significantly impact PPM when at low titres and when fulfilling classification criteria. PPM was further stratified upon the aPL tests: aCL IgG/IgM and anti-β2-glycoprotein I (β2GPI) IgM, alone or combined, do not affect the basal risks of PPM, an increase occurs in case of positive LA or anti-β2GPI IgG. LDASA significantly affects PPM exclusively in women with low-titre aPL without anti-β2GPI IgG. The LDASA + LMWH combination significantly reduces PPM in all women with low-titre aPL and women with criteria aPL, except those carrying LA and anti-β2GPI IgG. In this group, the addition of HCQ further reduces PPM, although not significantly. CONCLUSION EUREKA allows a tailored therapeutic approach, impacting everyday clinical management of aPL-positive pregnant women.
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Affiliation(s)
- Francesca Pregnolato
- Experimental Laboratory of Immunological and Rheumatologic Researches, Istituto Auxologico Italiano, IRCCS, Cusano Milanino, Milan, Italy
| | - Maria Gerosa
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Division of Rheumatology, ASST G. Pini & CTO, Milan, Italy
| | - Maria Gabriella Raimondo
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Division of Rheumatology, ASST G. Pini & CTO, Milan, Italy
| | - Chiara Comerio
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Department of Obstetrics and Gynaecology, Fondazione Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Francesca Bartoli
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Division of Rheumatology, ASST G. Pini & CTO, Milan, Italy
| | - Paola A Lonati
- Experimental Laboratory of Immunological and Rheumatologic Researches, Istituto Auxologico Italiano, IRCCS, Cusano Milanino, Milan, Italy
| | - Maria Orietta Borghi
- Experimental Laboratory of Immunological and Rheumatologic Researches, Istituto Auxologico Italiano, IRCCS, Cusano Milanino, Milan, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Barbara Acaia
- Department of Obstetrics and Gynaecology, Fondazione Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Manuela Wally Ossola
- Department of Obstetrics and Gynaecology, Fondazione Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Enrico Ferrazzi
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Department of Obstetrics and Gynaecology, Fondazione Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Laura Trespidi
- Department of Obstetrics and Gynaecology, Fondazione Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Pier Luigi Meroni
- Experimental Laboratory of Immunological and Rheumatologic Researches, Istituto Auxologico Italiano, IRCCS, Cusano Milanino, Milan, Italy.,Immunology and Rheumatology Unit, San Luca Hospital, Istituto Auxologico Italiano, IRCCS, Milan, Italy
| | - Cecilia B Chighizola
- Experimental Laboratory of Immunological and Rheumatologic Researches, Istituto Auxologico Italiano, IRCCS, Cusano Milanino, Milan, Italy.,Immunology and Rheumatology Unit, San Luca Hospital, Istituto Auxologico Italiano, IRCCS, Milan, Italy
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de Laat-Kremers RMW, Wahl D, Zuily S, Ninivaggi M, Chayouâ W, Regnault V, Musial J, de Groot PG, Devreese KMJ, de Laat B. Deciphered coagulation profile to diagnose the antiphospholipid syndrome using artificial intelligence. Thromb Res 2021; 203:142-151. [PMID: 34022673 DOI: 10.1016/j.thromres.2021.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/28/2021] [Accepted: 05/12/2021] [Indexed: 12/18/2022]
Abstract
The antiphospholipid syndrome (APS) is diagnosed by the presence of lupus anticoagulant and/or antibodies against cardiolipin or β2-glycoprotein-1 and the occurrence of thrombosis or pregnancy morbidity. The assessment of overall coagulation is known to differ in APS patients compared to normal subjects. The accelerated production of key factor thrombin causes a prothrombotic state in APS patients, and the reduced efficacy of the activated protein C pathway promotes this effect. Even though significant differences exist in the coagulation profile between normal controls and APS patients, it is not possible to rely on a single test result to diagnose APS. A neural network is a computing system inspired by the human brain that can be trained to distinguish between healthy subjects and patients based on subject specific data. In a first cohort of patients, we developed a neural networking that diagnoses APS. We clinically validated this neural network in a separate cohort consisting of APS patients, normal controls, controls visiting the hospital for other indications and two diseased control groups (thrombosis patients and auto-immune disease patients). The positive predictive value ranged from 62% in the hospital controls to 91% in normal controls and the negative predictive value of the neural network ranged from 86% in the thrombosis control group to 95% in the hospital controls. The sensitivity of the neural network was higher than 90% in all control groups. In conclusion, we developed a neural network that accurately diagnoses APS in the validation cohort. After further clinical validation in newly diagnosed patients, this neural network could possibly be clinically implemented to diagnose APS based on thrombin generation data.
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Affiliation(s)
- Romy M W de Laat-Kremers
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, the Netherlands; Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands
| | - Denis Wahl
- Vascular Medicine Division, CHU de Nancy, Nancy, France
| | | | - Marisa Ninivaggi
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands
| | - Walid Chayouâ
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands; Department of Biochemistry, CARIM, Maastricht University, Maastricht, the Netherlands
| | | | - Jacek Musial
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Jagiellonian University, Krakow, Poland
| | - Philip G de Groot
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands
| | - Katrien M J Devreese
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium; Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Bas de Laat
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, the Netherlands; Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands
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Abstract
Immune-related manifestations are increasingly recognized conditions in patients with COVID-19, with around 3,000 cases reported worldwide comprising more than 70 different systemic and organ-specific disorders. Although the inflammation caused by SARS-CoV-2 infection is predominantly centred on the respiratory system, some patients can develop an abnormal inflammatory reaction involving extrapulmonary tissues. The signs and symptoms associated with this excessive immune response are very diverse and can resemble some autoimmune or inflammatory diseases, with the clinical phenotype that is seemingly influenced by epidemiological factors such as age, sex or ethnicity. The severity of the manifestations is also very varied, ranging from benign and self-limiting features to life-threatening systemic syndromes. Little is known about the pathogenesis of these manifestations, and some tend to emerge within the first 2 weeks of SARS-CoV-2 infection, whereas others tend to appear in a late post-infectious stage or even in asymptomatic patients. As the body of evidence comprises predominantly case series and uncontrolled studies, diagnostic and therapeutic decision-making is unsurprisingly often based on the scarcely reported experience and expert opinion. Additional studies are required to learn about the mechanisms involved in the development of these manifestations and apply that knowledge to achieve early diagnosis and the most suitable therapy.
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31
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Nusbaum KB, Korman AM, Tyler KH, Kaffenberger JA, Trinidad JC, Dean S, Cataland S, Kaffenberger BH. In vitro diagnostics for the medical dermatologist. Part II: Hypercoagulability tests. J Am Acad Dermatol 2021; 85:301-310. [PMID: 33852929 DOI: 10.1016/j.jaad.2021.03.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 10/21/2022]
Abstract
The skin often provides initial clues of hypercoagulability with features such as livedo reticularis, livedo racemosa, retiform purpura, necrosis, and ulcerations. Because these cutaneous manifestations are nonspecific, laboratory testing is often needed to evaluate for underlying causes of hypercoagulability. Importantly, these disorders are reported to be the most common mimicker, resulting in an erroneous diagnosis of pyoderma gangrenosum. Understanding inherent properties of, and indications for, available tests is necessary for appropriate ordering and interpretation of results. Additionally, ordering of these tests in an indiscriminate manner may lead to inaccurate results, complicating the interpretation and approach to management. This second article in this continuing medical education series summarizes information on methodology, test characteristics, and limitations of several in vitro laboratory tests used for the work up of hypercoagulability and vasculopathic disease as it pertains to dermatologic disease.
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Affiliation(s)
| | - Abraham M Korman
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Kelly H Tyler
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Jessica A Kaffenberger
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - John C Trinidad
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Steven Dean
- Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Spero Cataland
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Benjamin H Kaffenberger
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio.
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Current Promising Biomarkers and Methods in the Diagnostics of Antiphospholipid Syndrome: A Review. Biomedicines 2021; 9:biomedicines9020166. [PMID: 33567576 PMCID: PMC7914732 DOI: 10.3390/biomedicines9020166] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 12/17/2022] Open
Abstract
Antiphospholipid syndrome (APS) is a hypercoagulation condition associated with the incidence of heterogenic antiphospholipid antibodies (aPLs), which non-specifically affect hemostasis processes. APS is clinically manifested by recurrent arterial and venous thromboses and reproduction losses. The aPL antibodies, which may induce clinical manifestations of APS, include criteria antibodies anti-cardiolipin, anti-β2-glycoprotein-I, and lupus anticoagulant, but also non-criteria antibodies, for example anti-β2-glycoprotein-I domain I, anti-phosphatidylserine/prothrombin, anti-annexin V, and many others. APS occurs mostly in patients of younger and middle age, most frequently in females. Laboratory diagnostics of APS are quite difficult, as they include a wide spectrum of examining methods, which are based on various principles of detection and are performed using various laboratory techniques. The objective of the review is to describe the current state of potentially examined biomarkers and methods in APS diagnostics. The aforementioned biomarkers are lupus anticoagulant, anti-β2-glycoprotein-I, anti-cardiolipin, anti-β2-glycoprotein-I domain I, anti-phosphatidylserine/prothrombin, anti-β2-glycoprotein-I IgA, anti-cardiolipin IgA, anti-annexin V and II, anti-prothrombin, anti-cardiolipin/vimentin, anti-protein S/protein C, and antibodies against phospholipid antigens for whose diagnostics we may use some of the methods established for a long time and some of the modern methods—the coagulation method for the determination of lupus anticoagulant (LA), enzyme-linked imunosorbent assay (ELISA), chemiluminescence analysis (CLIA), multiplex fluorescence flow immunoassay (MFFIA), fluorescence enzyme immunoassay (EliA), line immunoassay (LIA), multiline dot assay (MLDA), and thin-layer chromatography (TLC). Conclusion: Antibodies against phosphatidylethanolamine, phosphatidic acid, phosphatidylserine, phosphatidylinositol, cardiolipin/vimentin complex, and annexin V are currently the most studied new markers. However, these assays have not been standardized until now, both from the laboratory and clinical point of view. In this review we summarize the evidence of the most studied aPL markers and their potential clinical significance in seronegative APS (SN-APS).
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Rosina S, Chighizola CB, Ravelli A, Cimaz R. Pediatric Antiphospholipid Syndrome: from Pathogenesis to Clinical Management. Curr Rheumatol Rep 2021; 23:10. [PMID: 33511497 PMCID: PMC7843475 DOI: 10.1007/s11926-020-00976-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2020] [Indexed: 12/16/2022]
Abstract
PURPOSE OF REVIEW Elucidating the pathogenic mechanisms mediated by antiphospholipid antibodies (aPL) might exert important clinical implications in pediatric antiphospholipid syndrome (APS). RECENT FINDINGS aPL are traditionally regarded as the main pathogenic players in APS, inducing thrombosis via the interaction with fluid-phase and cellular components of coagulation. Recent APS research has focused on the role of β2 glycoprotein I, which bridges innate immunity and coagulation. In pediatric populations, aPL should be screened in appropriate clinical settings, such as thrombosis, multiple-organ dysfunction, or concomitant systemic autoimmune diseases. Children positive for aPL tests often present non-thrombotic non-criteria manifestations or asymptomatic aPL positivity. In utero aPL exposure has been suggested to result in developmental disabilities, warranting long-term follow-up. The knowledge of the multifaceted nature of pediatric APS should be implemented to reduce the risk of underdiagnosing/undertreating this condition. Hopefully, recent pathogenic insights will open new windows of opportunity in the management of pediatric APS.
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Affiliation(s)
- Silvia Rosina
- Clinica Pediatrica e Reumatologia, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Cecilia Beatrice Chighizola
- Experimental Laboratory of Immunological and Rheumatologic Researches, Immunology and Rheumatology Unit, San Luca Hospital, IRCCS Istituto Auxologico Italiano, Via Zucchi 18, Cusano Milanino, 20095, Milan, Italy.
| | - Angelo Ravelli
- Clinica Pediatrica e Reumatologia, IRCCS Istituto Giannina Gaslini, Genoa, Italy.,University of Genoa, Genoa, Italy.,Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Rolando Cimaz
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,RECAP_RD, University of Milan, Milan, Italy.,Pediatric Rheumatology Unit, ASST G. Pini & CTO, Milan, Italy
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Gavriș CM, Nedelcu LD, Pascu AM. Thrombotic risk in antiphospholipidic syndrome: From hypothesis to current evidence (Review). Exp Ther Med 2021; 21:287. [PMID: 33603894 DOI: 10.3892/etm.2021.9718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 12/08/2020] [Indexed: 11/05/2022] Open
Abstract
Thirty-five years after it was first described, antiphospholipid syndrome (APS) is unanimously recognized as a systemic autoimmune disease, a major acquired thrombophilia, which can affect any arterial or venous vascular territory, explaining the great diversity of clinical manifestations. The current classification criteria updated in the International Consensus Statement for Definite Antiphospholipid Syndrome from Sydney cannot explain alone the unpredictable evolution with thrombotic events of the patients diagnosed with APS. Although the link to genetics and epigenetics has not been clearly defined as in other autoimmune diseases, it is clear that a proper stratification of thrombotic risk in the era of personalized medicine must include classic biological markers (antiphospholipid antibodies, aPL), along with the already recognized phenotypes, non-conventional serological markers, and additional genetic risk factors for thrombosis. Moreover, with advancing age, a patient with APS develops other thrombotic risk factors which include: hypertension and dyslipidemia among others. According to the classification criteria, a patient is considered to have a low, moderate or high thrombotic risk. In clinical practice, patients with the same risk score may have completely different evolutions in terms of the recurrence of thrombosis. Concerning this approach, it appears that new non-conventional serological markers, phenotype-assessment and genetic determinants have an increasing importance and should be reconsidered in a proper thrombotic risk evaluation in patients with APS, compared to the initial concept of APS as first defined.
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Affiliation(s)
| | | | - Alina Mihaela Pascu
- Faculty of Medicine, 'Transilvania University' of Braşov, 500036 Brasov, Romania
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Devreese KMJ. Testing for antiphospholipid antibodies: Advances and best practices. Int J Lab Hematol 2021; 42 Suppl 1:49-58. [PMID: 32543059 DOI: 10.1111/ijlh.13195] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 02/24/2020] [Accepted: 03/10/2020] [Indexed: 01/19/2023]
Abstract
The diagnosis of antiphospholipid syndrome (APS) relies on the detection of circulating antiphospholipid antibodies (aPL). Currently, lupus anticoagulant (LAC), anticardiolipin (aCL), and antibeta2-glycoprotein I antibodies (aβ2GPI) IgG or IgM are included as laboratory criteria if persistently present. Progress has been made on the standardization of tests as guidelines on LAC testing and immunological assays for aCL and aβ2GPI are published. However, LAC measurement remains a complicated procedure with many pitfalls and interfered by anticoagulant therapy. Solid-phase assays for aCL and aβ2GPI still show interassay differences. These methodological issues make the laboratory diagnosis of APS challenging. In the interpretation of aPL results, antibody profiles help in identifying patients at risk. Noncriteria aPL, such as antibodies against the domain I of beta2-glycoprotein (aDI) and antiphosphatidylserine-prothrombin (aPS/PT) antibodies have been studied in the last years and may be useful in risk stratification of APS patients. But, aDI and aPS/PT are not included in the current diagnostic criteria and testing in daily practice is not recommended as these antibodies have no added value in the diagnosis of APS. This review will focus on the technical aspects of the laboratory methods, the clinical relevance of assays and interpretation of aPL results in the diagnosis of APS.
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Affiliation(s)
- Katrien M J Devreese
- Department of Laboratory Medicine, Coagulation Laboratory, Ghent University Hospital, Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
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Yin D, de Groot PG, Ninivaggi M, Devreese KMJ, de Laat B. Clinical Relevance of Isolated Lupus Anticoagulant Positivity in Patients with Thrombotic Antiphospholipid Syndrome. Thromb Haemost 2020; 121:1220-1227. [DOI: 10.1055/a-1344-4271] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abstract
Background Patients positive for all three types of antiphospholipid antibodies (aPLs; triple positivity) have been identified for having a high risk for thrombotic events. However, the clinical significance of isolated lupus anticoagulant (LAC) positivity is debated.
Objectives To investigate the clinical relevance of isolated LAC.
Methods A total of 456 patients were enrolled in this study; 66 antiphospholipid syndrome patients and 390 control patients. The control group consisted of autoimmune patients (n = 91), patients with thrombosis but without aPLs (n = 127), and normal controls (n = 172). LAC, anticardiolipin (anti-CL), and anti-β2 glycoprotein I (anti-β2GPI) immunoglobulin G (IgG) and immunoglobulin M (IgM) were determined according to the International Society on Thrombosis and Haemostasis (ISTH) guidelines. Anti-CL and anti-β2GPI were measured by four different solid-phase platforms to overcome variability between test systems. The noncriteria IgA anti-CL and anti-β2GPI, antidomain I of β2GPI IgG, and antiphosphatidylserine/prothrombin antibodies (anti-PS/PT) IgG and IgM were detected according to the ISTH guidelines for solid-phase assays.
Results In total, 70 patients were positive for LAC, of which 44 were negative for both anti-β2GPI and anti-CL antibodies. We found that isolated LAC proved to be strongly associated with vascular thrombosis (odds ratio [OR]: 7.3; 95% confidence interval [CI]: 3.3–16.1), even better than triple-positive samples (OR: 4.3; 95% CI: 1.6–12.2). The titers of the anti-PS/PT IgG and IgM were significantly higher in triple-positivity samples compared with samples with isolated LAC positivity. The majority of single LAC positives were anti-PS/PT-negative. We observed that LAC positivity was weaker in isolated LAC-positive patients compared with LAC activity in triple-positive patients.
Conclusion Isolated LAC was highly associated with thrombosis. The presence of anti-PS/PT antibodies could not explain LAC positivity in isolated LAC. Isolated LAC showed a weaker LAC activity compared with triple-positive patients.
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Affiliation(s)
- Dongmei Yin
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
| | - Philip G. de Groot
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
| | - Marisa Ninivaggi
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
| | - Katrien M. J. Devreese
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Bas de Laat
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
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Misdiagnosis of high thrombotic risk triple-positive antiphospholipid antibodies. Thromb Res 2020; 197:33-35. [PMID: 33161285 DOI: 10.1016/j.thromres.2020.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 09/09/2020] [Accepted: 10/10/2020] [Indexed: 11/24/2022]
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Devreese KMJ, Linskens EA, Benoit D, Peperstraete H. Antiphospholipid antibodies in patients with COVID-19: A relevant observation? J Thromb Haemost 2020; 18:2191-2201. [PMID: 32619328 PMCID: PMC7361253 DOI: 10.1111/jth.14994] [Citation(s) in RCA: 123] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/26/2020] [Accepted: 07/01/2020] [Indexed: 01/17/2023]
Abstract
BACKGROUND High incidence of thrombosis in COVID-19 patients indicates a hypercoagulable state. Hence, exploring the involvement of antiphospholipid antibodies (aPL) in these patients is of interest. OBJECTIVES To illustrate the incidence of criteria (lupus anticoagulant [LAC], anticardiolipin [aCL] immunoglobulin G [IgG]/IgM, antibeta2-glycoprotein I antibodies [aβ2GPI] IgG/IgM) and noncriteria (anti-phosphatidyl serine/prothrombin [aPS/PT], aCL, and aβ2GPI IgA) aPL in a consecutive cohort of critically ill SARS-CoV-2 patients, their association with thrombosis, antibody profile and titers of aPL. PATIENTS/METHODS Thirty-one consecutive confirmed COVID-19 patients admitted to the intensive care unit were included. aPL were measured at one time point, with part of the aPL-positive patients retested after 1 month. RESULTS Sixteen patients were single LAC-positive, two triple-positive, one double-positive, one single aCL, and three aCL IgG and LAC positive. Seven of nine thrombotic patients had at least one aPL. Sixteen of 22 patients without thrombosis were aPL positive, amongst them two triple positives. Nine of 10 retested LAC-positive patients were negative on a second occasion, as well as the double-positive patient. Seven patients were aPS/PT-positive associated to LAC. Three patients were aCL and aβ2GPI IgA-positive. CONCLUSION Our observations support the frequent single LAC positivity during (acute phase) observed in COVID-19 infection; however, not clearly related to thrombotic complications. Triple aPL positivity and high aCL/aβ2GPI titers are rare. Repeat testing suggests aPL to be mostly transient. Further studies and international registration of aPL should improve understanding the role of aPL in thrombotic COVID-19 patients.
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Affiliation(s)
- Katrien M J Devreese
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Eleni A Linskens
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Dominique Benoit
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium
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Abstract
PURPOSE OF THE REVIEW This review focuses on the laboratory tests necessary for the diagnosis of antiphospholipid syndrome (APS). For the interpretation of the results of the tests for antiphospholipid antibodies (aPL), understanding of all pitfalls and interferences is necessary. RECENT FINDINGS Progress has been made on the standardization of aPL tests and current guidelines for detection of lupus anticoagulant (LAC), anticardiolipin antibodies (aCL), and antibeta2-glycoprotein I antibodies (aβ2GPI) are useful tools. LAC measurement remains a complex procedure with many pitfalls and interference by anticoagulant therapy. Solid phase assays for aCL and aβ2GPI still show inter-assay differences. Measuring LAC, aCL, and aβ2GPI allows making antibody profiles that help in identifying patients at risk. Other aPL, such as antibodies against domain I of beta2-glycoprotein I (aDI) and antiphosphatidylserine-prothrombin (aPS/PT) antibodies, may be useful in risk stratification of APS patients, but are not included in the current diagnostic criteria as no added value in the diagnosis of APS has been illustrated so far. The laboratory diagnosis of APS remains challenging. LAC, aCL, aβ2GPI IgG, and IgM should be performed to increase diagnostic efficacy, with an integrated interpretation of all results and an interpretative comment. A close interaction between clinical pathologists and clinicians is mandatory.
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Affiliation(s)
- Katrien M J Devreese
- Department of Laboratory Medicine, Coagulation Laboratory, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium. .,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.
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Pericleous C, D'Souza A, McDonnell T, Ripoll VM, Leach O, Isenberg D, Giles I, Rahman A. Antiphospholipid antibody levels in early systemic lupus erythematosus: are they associated with subsequent mortality and vascular events? Rheumatology (Oxford) 2020; 59:146-152. [PMID: 31257438 PMCID: PMC6909892 DOI: 10.1093/rheumatology/kez239] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/13/2019] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES aPL are present in between 20 and 30% of patients with SLE. They can cause vascular events (VE) or pregnancy morbidity. aCL and anti-beta-2-glycoprotein I (anti-β2GPI) are measured in clinical practice. Domain I (DI) of β2GPI is the main site for aPL binding. We investigated the prevalence of IgG anti-DI, aCL and anti-β2GPI antibodies in early SLE and their association with mortality and development of VE. METHODS Samples from 501 patients with SLE that had been obtained and stored early during their disease were tested for IgG anti-DI, aCL and anti-β2GPI antibodies by ELISA. LA status and history of VE were obtained by reviewing medical records. Kaplan-Meier analysis was used to investigate mortality and occurrence of VE, comparing groups with and without aPL in early disease. RESULTS Of 501 patients, 190 (38%) had at least one of these aPL, of whom 112 had anti-DI alone. Of 276 patients with complete vascular history, 83 had experienced VE. The 39 patients who were double or triple-ELISA-positive for any combination of the three aPL were more likely to have or develop lupus anticoagulant (P<0.0001) than those who were single-ELISA-positive or negative. In Kaplan-Meier analysis, they showed a trend towards developing more VE (P = 0.06). CONCLUSION IgG anti-DI antibodies were present in early serum samples from 29% of patients and were more common than IgG aCL or anti-β2GPI. There was some evidence suggesting that double or triple-ELISA-positivity for these antibodies identified a group with worse outcomes.
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Affiliation(s)
- Charis Pericleous
- Division of Medicine, Centre for Rheumatology Research, University College London, London, UK
| | - Amrita D'Souza
- Division of Medicine, Centre for Rheumatology Research, University College London, London, UK
| | - Thomas McDonnell
- Division of Medicine, Centre for Rheumatology Research, University College London, London, UK
| | - Vera M Ripoll
- Division of Medicine, Centre for Rheumatology Research, University College London, London, UK
| | - Oliver Leach
- Division of Medicine, Centre for Rheumatology Research, University College London, London, UK
| | - David Isenberg
- Division of Medicine, Centre for Rheumatology Research, University College London, London, UK
| | - Ian Giles
- Division of Medicine, Centre for Rheumatology Research, University College London, London, UK
| | - Anisur Rahman
- Division of Medicine, Centre for Rheumatology Research, University College London, London, UK
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Yin D, Chayoua W, Kelchtermans H, de Groot PG, Moore GW, Gris JC, Zuily S, Musial J, de Laat B, Devreese KMJ. Detection of anti-domain I antibodies by chemiluminescence enables the identification of high-risk antiphospholipid syndrome patients: A multicenter multiplatform study. J Thromb Haemost 2020; 18:463-478. [PMID: 31749277 DOI: 10.1111/jth.14682] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 11/06/2019] [Accepted: 11/08/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Classification of the antiphospholipid syndrome (APS) relies predominantly on detecting antiphospholipid antibodies (aPLs). Antibodies against a domain I (DI) epitope of anti-β2glycoprotein I (β2GPI) proved to be pathogenic, but are not included in the current classification criteria. OBJECTIVES Investigate the clinical value of detecting anti-DI IgG in APS. PATIENTS/METHODS From eight European centers 1005 patients were enrolled. Anti-cardiolipin (CL) and anti-β2GPI were detected by four commercially available solid phase assays; anti-DI IgG by the QUANTA Flash® β2GPI domain I assay. RESULTS Odds ratios (ORs) of anti-DI IgG for thrombosis and pregnancy morbidity proved to be higher than those of the conventional assays. Upon restriction to patients positive for anti-β2GPI IgG, anti-DI IgG positivity still resulted in significant ORs. When anti-DI IgG was added to the criteria aPLs or used as a substitute for anti-β2GPI IgG/anti-CL IgG, ORs for clinical symptoms hardly improved. Upon removing anti-DI positive patients, lupus anticoagulant remained significantly correlated with clinical complications. Anti-DI IgG are mainly present in high-risk triple positive patients, showing higher levels. Combined anti-DI and triple positivity confers a higher risk for clinical symptoms compared to only triple positivity. CONCLUSIONS Detection of anti-DI IgG resulted in higher ORs for clinical manifestations than the current APS classification criteria. Regardless of the platform used to detect anti-β2GPI/anti-CL, addition of anti-DI IgG measured by QUANTA Flash® did not improve the clinical associations, possibly due to reduced exposure of the pathogenic epitope of DI. Our results demonstrate that anti-DI IgG potentially helps in identifying high-risk patients.
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Affiliation(s)
- Dongmei Yin
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands
- Synapse Research Institute, Maastricht, the Netherlands
| | - Walid Chayoua
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands
- Synapse Research Institute, Maastricht, the Netherlands
| | - Hilde Kelchtermans
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands
- Synapse Research Institute, Maastricht, the Netherlands
| | | | - Gary W Moore
- Viapath Analytics, Department of Haemostasis and Thrombosis, Guy's and St Thomas' Hospitals, London, UK
| | - Jean-Christophe Gris
- Department of Haematology, University Hospital of Nîmes and University of Montpellier, Montpellier, France
- Ivan Sechenov First Moscow State Medical University, Moscow, Russia
| | - Stéphane Zuily
- Inserm, DCAC, Vascular Medicine Division and Regional Competence Center for Rare Vascular and Systemic Autoimmune Diseases, Centre Hospitalier Regional Universitaire de Nancy, Université de Lorraine, Nancy, France
| | - Jacek Musial
- Department of Internal Medicine, Allergy and Immunology, Jagiellonian University Medical College, Kraków, Poland
| | - Bas de Laat
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands
- Synapse Research Institute, Maastricht, the Netherlands
| | - Katrien M J Devreese
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
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Chayoua W, Kelchtermans H, Gris JC, Moore GW, Musiał J, Wahl D, de Groot PG, de Laat B, Devreese KMJ. The (non-)sense of detecting anti-cardiolipin and anti-β2glycoprotein I IgM antibodies in the antiphospholipid syndrome. J Thromb Haemost 2020; 18:169-179. [PMID: 31519058 DOI: 10.1111/jth.14633] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 08/15/2019] [Accepted: 09/09/2019] [Indexed: 01/15/2023]
Abstract
BACKGROUND The antiphospholipid syndrome (APS) is characterized by thrombosis and/or pregnancy morbidity with the persistent presence of lupus anticoagulant (LAC), anti-cardiolipin (aCL) and/or anti-β2glycoprotein I (aβ2GPI) antibodies of the immunoglobulin G/immunoglobulin M (IgG/IgM) isotype. However, the role of aCL and aβ2GPI IgM as a serologic marker in APS is debated. OBJECTIVES We aimed to assess the diagnostic and clinical value of IgM antiphospholipid antibodies (aPL) in APS within the classification criteria. PATIENTS/METHODS Our multicenter study comprised 1008 patients, including APS patients and controls. Anti-CL and aβ2GPI IgG and IgM antibodies were detected with four commercially available solid phase assays. RESULTS Positivity for aCL and/or aβ2GPI antibodies was significantly correlated with thrombosis and pregnancy morbidity, independent of the isotype and solid phase assay. Higher odds ratios were obtained for IgG compared to IgM positivity. Isolated IgM was rare in thrombotic APS, but more frequent in obstetric APS, ranging from 3.5% to 5.4% and 5.7% to 12.3%, respectively, dependent on the solid phase assay. In a multivariate logistic regression analysis of aPL, IgM positivity was found to be associated with pregnancy morbidity. However, detection of IgM was not independently associated with thrombosis. Combined positivity for LAC, IgG, and IgM was highly associated with thrombosis and pregnancy morbidity. CONCLUSIONS Our data support testing for aCL and aβ2GPI IgM in women suspected of obstetric APS. However, no added value was found for testing IgM in patients suspected of thrombotic APS. Still, IgM aPL might be useful as a second-line test to improve thrombotic risk stratification.
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Affiliation(s)
- Walid Chayoua
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, the Netherlands
- Synapse Research Institute, Maastricht, the Netherlands
| | - Hilde Kelchtermans
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, the Netherlands
- Synapse Research Institute, Maastricht, the Netherlands
| | - Jean-Christophe Gris
- Centre Hospitalier Universitaire de Nîmes et Université de Montpellier, Montpellier, France
- Ivan Sechenov First Moscow State Medical University, Moscow, Russia
| | - Gary W Moore
- Department of Haemostasis & Thrombosis, Guy's & St. Thomas' Hospitals, London, UK
| | - Jacek Musiał
- Jagiellonian University Medical College, Krakow, Poland
| | - Denis Wahl
- DCAC, Vascular Medicine Division and Regional Competence Center for Rare Vascular and Systemic Autoimmune Diseases, Inserm, Centre Hospitalier Regional Universitaire de Nancy, Université de Lorraine, Nancy, France
| | | | - Bas de Laat
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, the Netherlands
- Synapse Research Institute, Maastricht, the Netherlands
| | - Katrien M J Devreese
- Department of Diagnostic Sciences, Coagulation Laboratory, Ghent University Hospital, Ghent, Belgium
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Petri M. Improvements in diagnosis and risk assessment of primary and secondary antiphospholipid syndrome. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2019; 2019:415-420. [PMID: 31808834 PMCID: PMC6913440 DOI: 10.1182/hematology.2019000046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Classification criteria for antiphospholipid syndrome have not been updated since the revised Sapporo classification criteria were published in 2006. These criteria have limitations in that they omit nonclassical manifestations (hematologic and neurologic), include anticardiolipin and anti-β2-glycoprotein I immunoglobulin (Ig)M isotypes, and do not separately consider primary (no autoimmune disease) or secondary (usually systemic lupus erythematosus) disease. Recent findings in antiphospholipid antibody include fluctuation of antiphospholipid antibodies, recognition that IgA isotypes do confer risk, identification of the role of complementopathy in catastrophic antiphospholipid syndrome, and elucidation of the role of thrombosis risk equations.
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Affiliation(s)
- Michelle Petri
- Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD
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Antiphospholipid antibodies and the risk of thrombocytopenia in patients with systemic lupus erythematosus: A systematic review and meta-analysis. Autoimmun Rev 2019; 18:102395. [DOI: 10.1016/j.autrev.2019.102395] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 05/12/2019] [Indexed: 01/30/2023]
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Yin D, de Laat B. Commentary on: Circulating plasmablasts contribute to antiphospholipid antibody production, associated with type I interferon upregulation. J Thromb Haemost 2019; 17:1030-1032. [PMID: 31257732 DOI: 10.1111/jth.14492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 05/21/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Dongmei Yin
- Synapse Research Institute, Maastricht, the Netherlands
| | - Bas de Laat
- Synapse Research Institute, Maastricht, the Netherlands
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Challenges and Advances in SLE Autoantibody Detection and Interpretation. CURRENT TREATMENT OPTIONS IN RHEUMATOLOGY 2019. [DOI: 10.1007/s40674-019-00122-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Li C, Zhao J, He K, Wu Y, Liu S, Wang Q, Zhao Y. Curative resolution of chronic thromboembolic pulmonary hypertension with pulmonary thromboendarterectomy in primary antiphospholipid syndrome: A case report. Medicine (Baltimore) 2018; 97:e12710. [PMID: 30290671 PMCID: PMC6200469 DOI: 10.1097/md.0000000000012710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Chronic thromboembolic pulmonary hypertension (CTEPH) is a severe complication of antiphospholipid syndrome (APS). Once diagnosed, the recommendation for the treatment of CTEPH is long-term anticoagulation and pulmonary thromboendarterectomy (PTE). However, cardiac surgeons apply PTE cautiously for these patients, as there is an increased risk of perioperative complications. Here, we present the curative case of a patient with severe APS-associated CTEPH treated with PTE. PATIENT CONCERNS A 29-year-old man presented with chest pain, decreased exercise capacity, dyspnoea, and haemoptysis. DIAGNOSES He was triple positive for antiphospholipid antibodies. Computed tomography pulmonary angiography revealed multiple, recurrent pulmonary embolisms and complete obstruction of the left pulmonary artery. He was diagnosed with APS and CTEPH. INTERVENTIONS After balancing the risk of thrombosis and haemorrhage, the patient underwent PTE. OUTCOMES The patient experienced symptom relief after PTE, and electrocardiography at a six-month follow-up showed a recovery of cardiac structure and pulmonary arterial pressure. LESSONS After evaluating the thrombosis risk at an experienced treatment centre and the application of standard anticoagulation treatment, PTE may be a curative resolution for APS-associated CTEPH.
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Affiliation(s)
- Can Li
- Department of Rheumatology
| | | | - Kun He
- Department of Medicine, Peking Union Medical College Hospital
| | | | - Sheng Liu
- Department of Cardiac Surgery, Fu Wai Hospital, Chinese Academy of Medical Science, Beijing, China
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