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Cabrera-Marante O, Garcinuño S, Pleguezuelo DE, Gil-Etayo FJ, Tenica I, Rodríguez de Frías E, Zafra D, Castro N, Paz-Artal E, Serrano A, Serrano M. Quantification of Antiphospholipid Antibodies: The Importance of Using an Appropriate Methodology for Each Clinical Profile. Int J Mol Sci 2023; 24:17373. [PMID: 38139202 PMCID: PMC10743765 DOI: 10.3390/ijms242417373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/05/2023] [Accepted: 12/10/2023] [Indexed: 12/24/2023] Open
Abstract
The presence of antiphospholipid antibodies (aPLs) is associated with antiphospholipid syndrome (APS), characterized by thrombosis and obstetric morbidity. aPLs included in APS classification criteria are lupus anticoagulant, anti-cardiolipin and anti-beta-2-glycoprotein-I of IgG or IgM isotypes. Enzyme-linked immunosorbent assay is the most used diagnostic technique to determine aPLs. Recently, new automated technologies mainly based in antigen-coated beads have been developed. The aim is to compare a fluorescence enzyme immunoassay (M1) and an antigen-coated bead assay (M2) in obstetric and thrombotic APS patients. All samples from the first 1020 patients received in the Immune Service Laboratory (Hospital 12 de Octubre) during the recruitment period, without exclusions, were analysed for aPLs. The weighted kappa for both methods in all the patients was 0.39 (0.30-0.47). Agreement increased to 0.56 (0.38-0.73) in patients with autoimmune disease. Sensitivity and specificity obtained for M1 were 17.1% and 89.3%, respectively, and 12.7% and 91.4% for M2. The sensibility and specificity of IgG isotypes were higher than the IgM ones. Regarding obstetric patients, M1 obtained significant diagnostic performance and had more sensitivity 23.75 (14.95-34.58) compared to M2 12.50 (6.16-21.79). In conclusion, clinical suspicion-based method selection for aPLs should be considered. To identify obstetric APS patients, solid phase methods remain more preferable.
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Affiliation(s)
- Oscar Cabrera-Marante
- Department of Immunology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (O.C.-M.); (D.E.P.); (F.J.G.-E.); (E.R.d.F.); (E.P.-A.); (M.S.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain;
| | - Sara Garcinuño
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain;
| | - Daniel Enrique Pleguezuelo
- Department of Immunology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (O.C.-M.); (D.E.P.); (F.J.G.-E.); (E.R.d.F.); (E.P.-A.); (M.S.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain;
| | - Francisco J. Gil-Etayo
- Department of Immunology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (O.C.-M.); (D.E.P.); (F.J.G.-E.); (E.R.d.F.); (E.P.-A.); (M.S.)
- Department of Haematology, Hospital Universitario de Salamanca, 37007 Salamanca, Spain
| | - Iulian Tenica
- Department of Occupational Medicine, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain;
| | - Edgard Rodríguez de Frías
- Department of Immunology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (O.C.-M.); (D.E.P.); (F.J.G.-E.); (E.R.d.F.); (E.P.-A.); (M.S.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain;
| | - Denis Zafra
- Department of Haematology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (D.Z.); (N.C.)
| | - Nerea Castro
- Department of Haematology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (D.Z.); (N.C.)
| | - Estela Paz-Artal
- Department of Immunology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (O.C.-M.); (D.E.P.); (F.J.G.-E.); (E.R.d.F.); (E.P.-A.); (M.S.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain;
| | - Antonio Serrano
- Department of Immunology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (O.C.-M.); (D.E.P.); (F.J.G.-E.); (E.R.d.F.); (E.P.-A.); (M.S.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain;
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | - Manuel Serrano
- Department of Immunology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (O.C.-M.); (D.E.P.); (F.J.G.-E.); (E.R.d.F.); (E.P.-A.); (M.S.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain;
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Ding Z, Pan H, Yang Z, Yang C, Shi H. Beyond the classics: The emerging value of anti-phosphatidylserine/prothrombin antibodies in antiphospholipid syndrome. Clin Immunol 2023; 256:109804. [PMID: 37838215 DOI: 10.1016/j.clim.2023.109804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/24/2023] [Accepted: 10/05/2023] [Indexed: 10/16/2023]
Abstract
Antiphospholipid syndrome (APS) is an autoimmune disorder characterized by the presence of antiphospholipid antibodies (aPLs), which can lead to thrombosis and pregnancy complications. Within the diverse range of aPLs, anti-phosphatidylserine/prothrombin antibodies (aPS/PT) have gained significance in clinical practice. The detection of aPS/PT has proven valuable in identifying APS patients and stratifying their risk, especially when combined with other aPL tests like lupus anticoagulant (LA) and anti-β2-glycoprotein I (aβ2GPI). Multivariate analyses have confirmed aPS/PT as an independent risk factor for vascular thrombosis and obstetric complications, with its inclusion in the aPL score and the Global Anti-Phospholipid Syndrome Score (GAPSS) aiding in risk evaluation. However, challenges remain in the laboratory testing of aPS/PT, including the need for assay standardization and its lower sensitivity in certain patient populations. Further research is necessary to validate the clinical utility of aPS/PT antibodies in APS diagnosis, risk stratification, and management.
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Affiliation(s)
- Zetao Ding
- Department of Rheumatology and Immunology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Haoyu Pan
- Department of Rheumatology and Immunology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhixia Yang
- Department of Rheumatology and Immunology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chengde Yang
- Department of Rheumatology and Immunology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Shi
- Department of Rheumatology and Immunology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Vandevelde A, Gris JC, Moore GW, Musiał J, Zuily S, Wahl D, Devreese KMJ. Added value of antiphosphatidylserine/prothrombin antibodies in the workup of obstetric antiphospholipid syndrome: communication from the ISTH SSC Subcommittee on Lupus Anticoagulant/Antiphospholipid Antibodies. J Thromb Haemost 2023; 21:1981-1994. [PMID: 37061133 DOI: 10.1016/j.jtha.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/17/2023] [Accepted: 04/03/2023] [Indexed: 04/17/2023]
Abstract
BACKGROUND The added value of antiphosphatidylserine/prothrombin antibodies (aPS/PT) in the diagnostic workup of antiphospholipid syndrome (APS) is unclear. Currently, diagnosis of thrombotic APS (TAPS) and obstetric APS (OAPS) requires persistent presence of lupus anticoagulant (LAC), anticardiolipin (aCL) immunoglobulin (Ig) G/IgM, or anti-β2-glycoprotein I (aβ2GPI) IgG/IgM antibodies. OBJECTIVES To evaluate the role of aPS/PT IgG and IgM in OAPS. METHODS aPS/PT IgG/IgM, aCL IgG/IgM, aβ2GPI IgG/IgM, and LAC were determined in 653 patients (OAPS, TAPS, and controls). In-house aPS/PT cut-off values were calculated, titers and prevalence were compared between OAPS, TAPS, and controls and type of pregnancy morbidity. Sensitivity, specificity, likelihood ratios, and odds ratios (OR) with 95% CI were calculated. RESULTS In OAPS, aPS/PT IgG and IgM showed an OR of 4.32 (95% CI, 2.54-7.36) and 3.37 (95% CI, 1.93-5.89), respectively, but the association was not independent of LAC. Prevalence and titers of aPS/PT IgG and IgM were lower in OAPS than in patients with TAPS. aPS/PT were more prevalent and showed higher titers in patients with late pregnancy loss than in patients with early pregnancy loss with a positivity of 86.4% and 39.3%, respectively. Higher aPS/PT titers did not increase the likelihood of having OAPS. CONCLUSION The added value of aPS/PT testing in the current diagnostic workup of OAPS seems limited compared with LAC, aCL, and aβ2GPI. aPS/PT might be useful in specific subsets of patients with OAPS. However, future multicentric studies are needed to elucidate the risk of less frequent and most severe obstetrical manifestations.
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Affiliation(s)
- Arne Vandevelde
- Coagulation Laboratory, Ghent University Hospital, Ghent, Belgium; Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Jean-Christophe Gris
- Department of Hematology, CHU Nîmes, Montpellier University, Nîmes, France; Department of Hematology, Faculty of Pharmaceutical and Biological Sciences, Montpellier University, France; UMR UA11 INSERM IDESP - Montpellier University, France; Department of Obstetrics and Gynecology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Gary W Moore
- Department of Haemostasis and Thrombosis, Viapath Analytics, Guy's & St. Thomas' Hospitals, London, United Kingdom; Department of Haematology, Specialist Haemostasis Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom; Department of Natural Sciences, Faculty of Science and Technology, Middlesex University, London, United Kingdom
| | - Jacek Musiał
- Department of Internal Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Stéphane Zuily
- Université de Lorraine, Inserm, DCAC and Centre Hospitalier Regional Universitaire de Nancy, Vascular Medicine Division and Regional Competence Center for Rare Vascular and Systemic Autoimmune Diseases, Nancy, France
| | - Denis Wahl
- Université de Lorraine, Inserm, DCAC and Centre Hospitalier Regional Universitaire de Nancy, Vascular Medicine Division and Regional Competence Center for Rare Vascular and Systemic Autoimmune Diseases, 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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Arachchillage DRJ, Pericleous C. Evolution of Antiphospholipid Syndrome. Semin Thromb Hemost 2023; 49:295-304. [PMID: 36646109 DOI: 10.1055/s-0042-1760333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Antiphospholipid syndrome (APS) is an autoimmune prothrombotic disease characterized by thrombosis and/or pregnancy complications caused by antiphospholipid antibodies (aPL). The history of APS can be traced back to observations made during screening programs for syphilis conducted in the mid-20th century, with identification of patients with the so-called biological false-positive serological reactions for syphilis. Initial observation linking aPL with recurrent miscarriages was first reported more than 40 years ago. Since then, our understanding of the pathogenesis and management of APS has evolved markedly. Although APS is an autoimmune disease, anticoagulation mainly with vitamin K antagonists (VKAs) rather than immunomodulation, is the treatment of choice for thrombotic APS. Direct acting oral anticoagulants are inferior to VKAs, especially those with triple-positive APS and arterial thrombosis. Inflammation, complement activation, and thrombosis in the placenta may contribute to pathogenesis of obstetric APS. Heparin, mainly low-molecular-weight heparin, and low-dose aspirin represent the treatments of choice for women with obstetric complications. Increasingly, immunomodulatory agents such as hydroxychloroquine for thrombotic and obstetric APS are being used, especially in patients who are refractory to present standard treatment.
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Affiliation(s)
- Deepa R J Arachchillage
- Department of Immunology and Inflammation, Centre for Haematology, Imperial College London, London, United Kingdom
- Department of Haematology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Charis Pericleous
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
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El Hasbani G, Saliba AN, Uthman I, Taher AT. Hematological manifestations of antiphospholipid syndrome: Going beyond thrombosis. Blood Rev 2023; 58:101015. [PMID: 36175215 DOI: 10.1016/j.blre.2022.101015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 11/30/2022]
Abstract
Thrombotic complications are a hallmark of antiphospholipid syndrome (APS). These vascular - arterial, venous, and/or small vessel - complications are well described and known to hematologists and healthcare providers caring for patients with this disease. In this review, we shed light on other hematological manifestations of the disease, including bleeding, thrombocytopenia, autoimmune hemolytic anemia, and thrombotic microangiopathy syndromes. While these manifestations are not bona fide clinical criteria for the diagnosis of APS, they frequently interact and contribute to the complexity of clinical management of APS.
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Affiliation(s)
- Georges El Hasbani
- Department of Internal Medicine, Hartford Healthcare, St. Vincent's Medical Center, Bridgeport, CT 06606, USA
| | - Antoine N Saliba
- Division of Hematology, Department of Medicine, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA
| | - Imad Uthman
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ali T Taher
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon..
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Noble H, Crossette-Thambiah C, Odho Z, Karawitage N, Logan K, Pericleous C, Laffan M, Arachchillage DJ. Frequency and Clinical Significance Anti-PS/PT Antibodies in Patients with Antiphospholipid Syndrome - Single Centre Observational Study in the United Kingdom. Semin Thromb Hemost 2022. [PMID: 36318961 DOI: 10.1055/s-0042-1757633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Hithin Noble
- Department of Immunology and Inflammation, Centre for Haematology, Imperial College London, London, United Kingdom
| | - Christina Crossette-Thambiah
- Department of Immunology and Inflammation, Centre for Haematology, Imperial College London, London, United Kingdom
- Department of Haematology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Zain Odho
- Department of Laboratory medicine, Royal Brompton Hospital, London, United Kingdom
| | - Nilanthi Karawitage
- Department of Immunology and Inflammation, Centre for Haematology, Imperial College London, London, United Kingdom
| | - Karen Logan
- Department of Immunology and Inflammation, Centre for Haematology, Imperial College London, London, United Kingdom
| | - Charis Pericleous
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Mike Laffan
- Department of Immunology and Inflammation, Centre for Haematology, Imperial College London, London, United Kingdom
- Department of Haematology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Deepa J Arachchillage
- Department of Immunology and Inflammation, Centre for Haematology, Imperial College London, London, United Kingdom
- Department of Haematology, Imperial College Healthcare NHS Trust, London, United Kingdom
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Pham M, Orsolini G, Crowson C, Snyder M, Pruthi R, Moder K. Anti-phosphatidylserine prothrombin antibodies as a predictor of the lupus anticoagulant in an all-comer population. J Thromb Haemost 2022; 20:2070-2074. [PMID: 35722911 DOI: 10.1111/jth.15792] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 05/20/2022] [Accepted: 06/17/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Anti-phosphatidylserine prothrombin antibodies (aPSPT) are reported to be highly associated with the lupus anticoagulant (LAC) in established antiphospholipid syndrome (APS) and systemic lupus erythematosus (SLE) cohorts. Further, aPSPT has been suggested to be a useful surrogate LAC marker. However, validation studies replicating this relationship in an all-comer study population in the diagnostic clinical setting are lacking. OBJECTIVES To determine the sensitivity and specificity of aPSPT to the LAC in an all-comer population undergoing evaluation for suspected APS. METHODS An assembled cross-sectional cohort from June 2017 to December 2018 undergoing APS evaluations across all medical specialties were reviewed for LAC, aPSPT, anti-cardiolipin (aCL), and anti-β2 glycoprotein-1 (β2GP1). Sensitivities, specificities, and negative and positive predictive values were calculated. RESULTS AND CONCLUSIONS A cohort of 166 eligible patients was identified. Seventy-one percent were female, 89% White, 15% with SLE, and 21% with APS. The aPSPT was found to be the most specific to the LAC. Specificity of IgG aPSPT was 100% (96%-100%) and IgM aPSPT was 97% (91%-100%) to the LAC. Corresponding positive predictive value for IgG aPSPT was 100% (89%-100%) and IgM aPSPT was 95% (84%-99%). In contrast, the sensitivities of aPSPT to the LAC were less robust, only in the 40%-50% range. The findings validate previously reported findings and lends extension to an all-comer population. These findings corroborate aPSPT as a potentially useful clinical marker of the LAC.
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Affiliation(s)
- Michael Pham
- Department of Rheumatology, Mayo Clinic, Scottsdale, Arizona, USA
| | - Giovanni Orsolini
- Department of Medicine, Rheumatology Unit, University of Verona, Verona, Italy
| | - Cynthia Crowson
- Department of Health Sciences Research, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA
| | - Melissa Snyder
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Rajiv Pruthi
- Department of Hematology and Special Coagulation Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Kevin Moder
- Department of Rheumatology, Mayo Clinic, Rochester, Minnesota, USA
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Zhu R, Cheng CY, Yang Y, Denas G, Pengo V. Prevalence of aPhosphatidylserine/prothrombin antibodies and association with antiphospholipid antibody profiles in patients with antiphospholipid syndrome: A systematic review and meta-analysis. Thromb Res 2022; 214:106-114. [DOI: 10.1016/j.thromres.2022.04.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/18/2022] [Accepted: 04/28/2022] [Indexed: 11/16/2022]
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Egri N, Bentow C, Rubio L, Norman GL, López-Sañudo S, Mahler M, Pérez-Isidro A, Cervera R, Viñas O, Espinosa G, Ruiz-Ortiz E. Anti-Phosphatidylserine/Prothrombin Antibodies at Two Points: Correlation With Lupus Anticoagulant and Thrombotic Risk. Front Immunol 2021; 12:754469. [PMID: 34790198 PMCID: PMC8592011 DOI: 10.3389/fimmu.2021.754469] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/29/2021] [Indexed: 01/18/2023] Open
Abstract
Antibodies to phospholipids (aPL) and associated proteins are a hallmark in the diagnosis of anti-phospholipid syndrome (APS). Those included in the classification criteria are the lupus anticoagulant (LA) and the IgG and IgM isotypes of anticardiolipin (aCL) and anti-beta-2 glycoprotein I (β2GPI) antibodies. Non-classification criteria markers such as autoantibodies that recognize the phosphatidylserine/prothrombin (aPS/PT) complex have been proposed as biomarkers for APS. Studies of aPS/PT antibodies have shown a strong correlation to clinical manifestations and LA. We aimed to study the value and the persistence of aPS/PT IgG and IgM antibodies in a cohort of consecutive patients with clinical suspicion of APS and their utility as thrombotic risk markers. Our study, with 103 patients, demonstrates that persistently positive results for aPS/PT IgG antibodies were significantly associated with APS classification, thrombosis, triple aPL positivity, LA positive result, and the Global APS Score (GAPSS) > than 9 points (p < 0.01, for each condition). On the other hand, no association was seen with pregnancy morbidity (p = 0.56) and SLE (p = 0.07). Persistence of aPS/PT antibodies, defined according to the current laboratory classification criteria, likely improves the diagnosis and clinical assessment of patients with APS.
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Affiliation(s)
- Natalia Egri
- Institut de Recerca Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Department of Immunology, Centre de Diagnòstic Biomèdic, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Chelsea Bentow
- Headquarters & Technology Center, Autoimmunity, Werfen, San Diego, CA, United States
| | - Laura Rubio
- Department of Immunology, Centre de Diagnòstic Biomèdic, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Gary L Norman
- Headquarters & Technology Center, Autoimmunity, Werfen, San Diego, CA, United States
| | | | - Michael Mahler
- Headquarters & Technology Center, Autoimmunity, Werfen, San Diego, CA, United States
| | - Albert Pérez-Isidro
- Institut de Recerca Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Department of Immunology, Centre de Diagnòstic Biomèdic, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Ricard Cervera
- Institut de Recerca Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Department of Autoimmune Diseases, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Odette Viñas
- Institut de Recerca Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Department of Immunology, Centre de Diagnòstic Biomèdic, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Gerard Espinosa
- Institut de Recerca Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Department of Autoimmune Diseases, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Estíbaliz Ruiz-Ortiz
- Institut de Recerca Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Department of Immunology, Centre de Diagnòstic Biomèdic, Hospital Clínic de Barcelona, Barcelona, Spain
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Lee A, Nahm CH, Lee JS, Lee MK, Lee KR. Assessment of antiphospholipid antibodies and calprotectin as biomarkers for discriminating mild from severe COVID-19. J Clin Lab Anal 2021; 35:e24004. [PMID: 34608677 PMCID: PMC8605160 DOI: 10.1002/jcla.24004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/23/2021] [Accepted: 09/03/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND To explore the association of thrombo-inflammatory biomarkers with severity in coronavirus disease (COVID-19), we measured antiphospholipid antibodies (aPL) and calprotectin in sera of COVID-19 patients. METHODS Anticardiolipin antibodies (aCL) and anti-β2-glycoprotein I antibodies were measured using enzyme-linked immunosorbent assay (ELISA) and multiplex flow immunoassay (MFIA) in hospitalized COVID-19 patients (N = 105) and healthy controls (N = 38). Anti-phosphatidylserine/prothrombin antibodies, calprotectin, and C-reactive protein (CRP) levels were also measured. We assessed the potential correlation between calprotectin levels and various laboratory parameters that were measured during the hospitalization period. After stratifying COVID-19 patients into two groups by their oxygenation status or acute respiratory distress syndrome presentation, the discriminatory performance of each biomarker was evaluated. RESULTS A high proportion of COVID-19 patients (29.5%, 31/105) had low aCL IgM titers that were detectable by ELISA but mostly below the detection limit of MFIA. Calprotectin levels in severe groups of COVID-19 were significantly higher than those in non-severe groups, while CRP levels revealed no significant differences. Serum calprotectin levels showed strong to moderate degree of correlation with other routinely used parameters including peak levels of CRP, ferritin, procalcitonin, BUN, and neutrophil-to-lymphocyte ratio, but a negative correlation with minimal lymphocyte count and CD4+ T cells. The discriminatory performance was highest for calprotectin in discriminating severe groups of COVID-19. CONCLUSIONS Serum calprotectin levels were significantly elevated in severe COVID-19 cases. The prevalence of clinically significant aPL did not differ. The link between calprotectin and inflammatory pathway in COVID-19 may help improve the management and outcomes of COVID-19 patients.
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Affiliation(s)
- Anna Lee
- Department of Laboratory Medicine, Seoul Clinical Laboratories, Yong-In, Korea
| | - Chung Hyun Nahm
- Department of Laboratory Medicine, Inha University College of Medicine, Incheon, Korea
| | - Jin-Soo Lee
- Division of Infectious Diseases, Department of Internal Medicine, Inha University College of Medicine, Incheon, Korea
| | - Mi-Kyeong Lee
- Department of Laboratory Medicine, Seoul Clinical Laboratories, Yong-In, Korea
| | - Kyoung-Ryul Lee
- Department of Laboratory Medicine, Seoul Clinical Laboratories, Yong-In, Korea
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Kawakami T, Okiyama N, Kodera M, Seishima M, Yamaguchi Y. The relationship between anti-phosphatidylserine/prothrombin complex IgM antibodies and cutaneous ulcers in patients with cutaneous vasculitis. J Dermatol 2021; 48:1457-1458. [PMID: 34173266 DOI: 10.1111/1346-8138.16014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/14/2021] [Accepted: 05/15/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Tamihiro Kawakami
- Division of Dermatology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Naoko Okiyama
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masanari Kodera
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Mariko Seishima
- Japan Community Health Care Organization Chukyo Hospital, Nagoya, Japan
| | - Yukie Yamaguchi
- Department of Environmental Immuno-Dermatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Naranjo L, Ostos F, Gil-Etayo FJ, Hernández-Gallego J, Cabrera-Marante Ó, Pleguezuelo DE, Díaz-Simón R, Cerro M, Lora D, Martínez-Salio A, Serrano A. Presence of Extra-Criteria Antiphospholipid Antibodies Is an Independent Risk Factor for Ischemic Stroke. Front Cardiovasc Med 2021; 8:665741. [PMID: 34012984 PMCID: PMC8126615 DOI: 10.3389/fcvm.2021.665741] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/01/2021] [Indexed: 12/23/2022] Open
Abstract
Background: Ischemic stroke is the most common and severe arterial thrombotic event in Antiphospholipid syndrome (APS). APS is an autoimmune disease characterized by the presence of thrombosis and antiphospholipid antibodies (aPL), which provide a pro-coagulant state. The aPL included in the classification criteria are lupus anticoagulant, anti-cardiolipin (aCL) and anti-β2-glycoprotein-I antibodies (aB2GPI) of IgG and IgM isotypes. Extra-criteria aPL, especially IgA aB2GPI and IgG/IgM anti-phosphatidylserine/prothrombin antibodies (aPS/PT), have been strongly associated with thrombosis. However, their role in the general population suffering from stroke is unknown. We aim (1) to evaluate the aPL prevalence in ischemic stroke patients, (2) to determine the role of aPL as a risk factor for stroke, and (3) to create an easy-to-use tool to stratify the risk of ischemic stroke occurrence considering the presence of aPL and other risk factors. Materials and Methods: A cohort of 245 consecutive ischemic stroke patients was evaluated in the first 24 h after the acute event for the presence of classic aPL, extra-criteria aPL (IgA aB2GPI, IgG, and IgM aPS/PT) and conventional cardiovascular risk factors. These patients were followed-up for 2-years. A group of 121 healthy volunteers of the same age range and representative of the general population was used as reference population. The study was approved by the Ethics Committee for Clinical Research (Reference numbers CEIC-14/354 and CEIC-18/182). Results: The overall aPL prevalence in stroke patients was 28% and IgA aB2GPI were the most prevalent (20%). In the multivariant analysis, the presence of IgA aB2GPI (OR 2.40, 95% CI: 1.03–5.53), dyslipidemia (OR 1.70, 95% CI: 1.01–2.84), arterial hypertension (OR 1.82, 95% CI: 1.03–3.22), atrial fibrillation (OR 4.31, 95% CI: 1.90–9.78), and active smoking (OR 3.47, 95% CI: 1.72–6.99) were identified as independent risk factors for ischemic stroke. A risk stratification tool for stroke was created based on these factors (AUC: 0.75). Conclusions: IgA aB2GPI are an important independent risk factor for ischemic stroke. Evaluation of aPL (including extra-criteria) in cardiovascular risk factor assessment for stroke can potentially increase the identification of patients at risk of thrombotic event, facilitating a decision on preventive treatments.
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Affiliation(s)
- Laura Naranjo
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Immunology Department, Hospital Universitario 12 de Octubre, Madrid, Spain.,Faculty of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Fernando Ostos
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Neurology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Francisco Javier Gil-Etayo
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Immunology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Jesús Hernández-Gallego
- Faculty of Medicine, Universidad Complutense de Madrid, Madrid, Spain.,Neurology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Óscar Cabrera-Marante
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Immunology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Daniel Enrique Pleguezuelo
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Immunology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Raquel Díaz-Simón
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Internal Medicine Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Mercedes Cerro
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Department of Nursing, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - David Lora
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Epidemiology Department, Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Faculty of Statistical Studies, Universidad Complutense de Madrid, Madrid, Spain
| | - Antonio Martínez-Salio
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Faculty of Medicine, Universidad Complutense de Madrid, Madrid, Spain.,Neurology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Antonio Serrano
- Healthcare Research Institute, Hospital Universitario 12 de Octubre, Madrid, Spain.,Immunology Department, Hospital Universitario 12 de Octubre, Madrid, Spain.,Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
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Abstract
Introduction: As soon as the association of lupus anticoagulant (LAC) and anticardiolipin antibodies (aCL) with thrombosis and miscarriages was described in the 1980s, the definition of the antiphospholipid syndrome (APS) became a need. Early descriptions of the disease by members of the Graham Hughes team included broad categories and unexplained laboratory inclusions. Over time, new clinical and experimental data refined the criteria, especially the obstetric manifestations, as well as the laboratory criteria.Areas covered: The authors performed a review of the literature using the PubMed database, and the following keywords were used: 'antiphospholipid antibody', 'antiphospholipid syndrome', and 'criteria of antiphospholipid'. The history of antiphospholipid criteria, clinical and experimental advancements, and other expert opinions were included in this paper.Expert opinion: It has been 14 years since an international congress on antiphospholipid antibodies has generated new classification based on the recent extensive research performed in the field. Currently, there is a need to update the international APS classification taking into consideration the inclusion of new clinical criteria such as aPL-related nephropathy as well as new standardized antibody specificities (e.g., anti-phosphatidylserine/prothrombin antibodies) with the adoption of a standardized scoring system that can stratify APS patients.
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Affiliation(s)
- Georges El Hasbani
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ali T Taher
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Savino Sciascia
- Center of Research of Immunopathology and Rare Diseases and SCDU Nephrology and Dialysis, Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Imad Uthman
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
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Pontara E, Cattini MG, Cheng C, Bison E, Denas G, Pengo V. Insight into the hypercoagulable state of high-risk thrombotic APS patients: Contribution of aβ2GPI and aPS/PT antibodies. J Thromb Haemost 2021; 19:805-813. [PMID: 33249717 DOI: 10.1111/jth.15199] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/24/2020] [Accepted: 11/24/2020] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Most high-risk thrombotic antiphospholipid syndrome (APS) patients test positive for anti-β2-glycoprotein I (aβ2GPI) and anti-phosphatidylserine/prothrombin (aPS/PT) antibodies. Information on the influence of these antibodies on thrombin generation and activated protein C resistance (aPCr) is still sparse and contradictory. METHODS Plasma of 16 patients poured into a β2GPI affinity column allowed the perfect separation of aβ2GPI and aPS/PT antibodies. aPS/PT antibodies were further purified through a prothrombin affinity column. Obtained material was spiked into normal pooled plasma (NPP) and tested in the thrombin generation assay in the absence or presence of aPC. RESULTS aPS/PT antibodies showed a marked anticoagulant effect. Affinity purified aPS/PT and aβ2GPI antibodies from five patients were compared. aPS/PT antibodies showed significantly prolonged lag time and time to peak (5.0 minutes [interquartile range (IQR)3.5-6.1] versus 2.7 minutes [IQR2.2-3.5], P = .03 and 8.7 minutes [IQR6.7-10.3] versus 5.7 minutes [IQR4.5-6.2], P = .05, respectively) and significantly lower peak and velocity index (143 nmol/L [IQR131-163] versus 171 nmol/L [IQR157-182], P = .03 and 35 nmol/L/min [IQR32-59] versus 72 nmol/L/min [IQR54-77], P = .03, respectively). When aPC was added to the system, aPCr was significantly increased compared to controls for both aβ2GPI and aPS/PT antibodies. However, it was significantly stronger using aPS/PT antibodies. Median inhibition of endogenous thrombin potential was 22% (IQR16-33) with aPS/PT compared to 52% (IQR46-56) with aβ2GPI antibodies (P = .002). CONCLUSIONS Aβ2GPI antibodies show a mild anticoagulant and moderate procoagulant effect in thrombin generation and moderate aPC resistance. Conversely, aPS/PT antibodies show a strong anticoagulant effect and a strong aPCr.
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Affiliation(s)
- Elena Pontara
- Thrombosis Research Laboratory, University of Padova, Padova, Italy
| | | | - Chunyan Cheng
- Thrombosis Research Laboratory, University of Padova, Padova, Italy
| | - Elisa Bison
- Thrombosis Research Laboratory, University of Padova, Padova, Italy
| | - Gentian Denas
- Thrombosis Research Laboratory, University of Padova, Padova, Italy
| | - Vittorio Pengo
- Thrombosis Research Laboratory, University of Padova, Padova, Italy
- Arianna Foundation on Anticoagulation, Bologna, Italy
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15
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Sarinc Ulasli S, Koksal D, Karcioglu O, Armagan B, Sari A, Babaoglu E, Akdogan A, Apras Bilgen S. Pulmonary manifestations of antiphospholipid syndrome: a retrospective analysis of 67 patients. J Thromb Thrombolysis 2021. [PMID: 33386561 DOI: 10.1007/s11239-020-02351-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/23/2020] [Indexed: 10/22/2022]
Abstract
Antiphospholipid syndrome (APS) is a systemic autoimmune disorder characterized by arterial and/ or venous thrombosis accompanied by persistently elevated levels of antiphospholipid antibodies (aPLs). The aim of this study is to evaluate the pulmonary manifestations of APS and compare the levels of aPLs in patients with and without pulmonary involvement. We retrospectively reviewed the files of patients with the diagnosis of APS between October 2010 and May 2017. Demographic data, clinical, radiological and laboratory findings were recorded. The study included 67 patients (56 female/11 male) with a mean age of 39 ± 13 years. Pulmonary manifestations such as parenchymal and/or vascular involvement were seen in 12 (17.9%) patients. The patients with and without pulmonary manifestations were not significantly different in terms of age (p = 0.46), comorbidities (p = 0.48) and APS duration (p = 0.66). Acute pulmonary thromboembolism (PE) was determined in 11 (16.4%), alveolar hemorrhage in 2 (3%) patients. Four patients with acute PE (36%) developed chronic thromboembolic pulmonary hypertension (CTEPH). One patient developed both CTEPH and diffuse alveolar hemorrhage after acute PE during follow up. Antiphosholipid antibody IgM was highly positive in patients with PE compared to patients without PE (p = 0.005). Other antibodies and lupus anticoagulant were not significantly different in patients with and without PE. None of the patients were deceased due to pulmonary manifestations of APS. PE was the most common pulmonary manifestation of APS. The development of CTEPH was high among APS patients. Patients with APS should be closely followed for the onset of PE and CTEPH.
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Bertin D, Beziane A, Resseguier N, Pelissier M, Morange PE, Mege JL, Bardin N. Interest of IgG and IgM antiprothrombin autoantibodies in the exploration of antiphospholipid syndrome: a 5-year retrospective study. Rheumatology (Oxford) 2020; 59:1539-1544. [DOI: 10.1093/rheumatology/kez453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/22/2019] [Indexed: 11/12/2022] Open
Abstract
Abstract
Objectives
Non-conventional aPL have been described in patients presenting clinical manifestations of antiphospholipid syndrome but negative for conventional markers. Among them, detection of autoantibodies against prothrombin has been proposed to improve diagnosis and management of these patients. However autoantibodies against prothrombin are heterogeneous and their use in clinical practice still remains unclear. The aim of this study was to evaluate the interest of IgG and IgM autoantibodies directed against the prothrombin only (aPT).
Methods
We retrospectively studied IgM and IgG aPT results, conventional antiphospholipid syndrome markers and clinical data of a large cohort of 441 patients referred for antiphospholipid syndrome exploration with aPT detection over a period of 5 years.
Results
We observed a total prevalence of 17% of aPT-positive patients (75/441). A significant association was found between aPT and thrombosis (P = 0.035), with 70% of patients having unexplained thrombosis, aPT representing the sole aPL detected. aPT positivity was significantly more frequent in venous thrombosis than in arterial thrombosis (P = 0.004). Interestingly, we demonstrated for the first time that aPT IgG levels were higher in recurrent thrombosis than in isolated thrombosis (P = 0.013), leading us to propose a predictive level of recurrence for thrombosis.
Conclusion
Our results show that aPT are associated with thrombosis and demonstrate the interest of assessing both IgG and IgM aPT, in particular in venous thrombosis when conventional markers are negative. Quantification of aPT could predict recurrence of thrombosis and influence subsequent treatment strategy. Prospective clinical studies are now required to confirm these results.
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Affiliation(s)
- Daniel Bertin
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d’immunologie
| | | | - Noemie Resseguier
- Aix-Marseille Univ, Unité de Recherche EA 3279, Service de Santé Publique
| | - Morgane Pelissier
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d’immunologie
| | - Pierre-Emmanuel Morange
- AP-HM, Hôpital de la Timone, Pôle de Biologie, Service d’hématologie
- Aix Marseille Univ, INSERM UMR_S 1263, C2VN
| | - Jean Louis Mege
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d’immunologie
- Aix-Marseille Univ, IRD, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Nathalie Bardin
- AP-HM, Hôpital de la Conception, Pôle de Biologie, Service d’immunologie
- Aix Marseille Univ, INSERM UMR_S 1263, C2VN
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17
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Liu T, Gu J, Wan L, Hu Q, Teng J, Liu H, Cheng X, Ye J, Su Y, Sun Y, Zhou J, Norman GL, Wang X, Yang C, Shi H. "Non-criteria" antiphospholipid antibodies add value to antiphospholipid syndrome diagnoses in a large Chinese cohort. Arthritis Res Ther 2020; 22:33. [PMID: 32085759 PMCID: PMC7035660 DOI: 10.1186/s13075-020-2131-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 02/14/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Despite expansion in the 2006 Sydney antiphospholipid syndrome (APS) classification criteria to include IgG/IgM anti-β2-glycoprotein (aβ2GPI) antibodies in addition to IgG/IgM anti-cardiolipin antibodies (aCL) and lupus anticoagulant (LAC), some individuals with clinical features of APS remain seronegative (seronegative APS or SNAPS) and are at risk of recurrent thrombosis and pregnancy morbidities. Our aim was to assess the value of "non-criteria" aPL antibodies to detect these SNAPS patients. METHODS One hundred ninety-two APS patients, 90 SNAPS patients, 193 autoimmune disease controls, and 120 healthy controls were evaluated. Ten antiphospholipid antibodies (aPLs) were tested using commercial kits, including 5 non-criteria aPLs: anti-phosphatidylserine/prothrombin antibodies (aPS/PT) IgG/IgM, aCL IgA, aβ2GPI IgA, and anti-β2GPI Domain 1 (aβ2GPI-D1) IgG. RESULTS Up to 60.9% of the SNAPS and 93.5% of APS patients were detected by at least one non-criteria aPL. aPS/PT IgG had the highest Youden index in classifying APS and SNAPS from controls. aPS/PT IgG and aβ2GPI Domain 1 IgG seem to be the most significant risk factors for thrombotic events and pregnancy morbidity, respectively. aPS/PT IgG/IgM and aβ2GPI-D1 IgG were detected in some SNAPS patients, while IgA isotypes of aCL/aβ2GPI tended to appear together with other biomarkers. The combined analysis showed enhanced diagnostic performance with the inclusion of non-criteria aPLs. CONCLUSIONS Recognition of SNAPS patients is critical for clinical management and prevention of potential thrombotic and obstetric adverse events. The non-criteria antiphospholipid antibodies help to identify a considerable portion (60.9%) of these patients who otherwise may remain untreated and at clinical risk.
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Affiliation(s)
- Tingting Liu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Jieyu Gu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Liyan Wan
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Qiongyi Hu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Jialin Teng
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Honglei Liu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Xiaobing Cheng
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Junna Ye
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Yutong Su
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Yue Sun
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China
| | - Jinfeng Zhou
- Werfen China, 10 Jiuxianqiao RD., Chaoyang District, Beijing, China
| | - Gary L Norman
- INOVA Diagnostics, Inc., 9900 Old Grove Road, San Diego, CA, 92131, USA
| | - Xuefeng Wang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chengde Yang
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China.
| | - Hui Shi
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai, 200025, China.
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Ferreira TG, Delhommeau F, Johanet C, Gerotziafas G, Bornes M, Cohen J, Kayem G, Fain O, Planche V, Mékinian A. Annexin-A5 resistance and non-criteria antibodies for the diagnosis of seronegative antiphospholipid syndrome. Clin Rheumatol 2020; 39:1167-71. [PMID: 31925628 DOI: 10.1007/s10067-019-04915-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/03/2019] [Accepted: 12/23/2019] [Indexed: 12/29/2022]
Abstract
In this study, we aimed to analyze the value of annexin-A5 anticoagulant ratio (A5R) and non-criteria antibodies for the diagnosis of APS in patients with clinical seronegative APS. Three groups were defined, including 21 seronegative APS patients with unexplained obstetrical adverse events or thrombosis history, 15 confirmed APS patients with triple aPL positivity, and a control group of 20 healthy patients without any history of thrombosis or pregnancy complications. Seronegative APS patients have similar levels of A5R in comparison to healthy controls (202% [171%-238%] versus 191% [178%-221%]; p = 0.65), whereas triple-positive APS patients have significantly more reduced A5R in comparison to both seronegative and healthy patients (149% [138%-158%] versus 202% [171%-238%] and 191% [178%-221%], respectively, p < 0.001). The non-criteria aPL were found in 24% of seronegative APS: anti-PE IgM in 3 cases (14%) and anti-PS/PT IgG and anti-PS/PT IgM in 1 (5%) case each. The frequency of non-criteria APL was significantly more frequent in comparison to healthy controls (p = 0.048). All triple-positive APS patients have at least one non-criteria aPL, and the non-criteria aPL were significantly more frequent in these patients compared to seronegative APS and healthy controls (p < 0.001). Whereas A5R levels do not allow to discriminate seronegative APS from healthy controls, our results demonstrate that non-criteria aPL can help to APS diagnosis in clinical seronegative APS.Key points• Annexin-A5 resistance testing does not help for the diagnosis of seronegative APS.• The non-criteria antiphospholipid antibodies can contribute to APS diagnosis in patients without conventional antibodies.
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Ramirez GA, Canti V, Del Rosso S, Erra R, Moiola L, Magnoni M, Bozzolo EP, Manfredi AA, Rovere-Querini P. Diagnostic performance of aPS/PT antibodies in neuropsychiatric lupus and cardiovascular complications of systemic lupus erythematosus. Autoimmunity 2019; 53:21-27. [PMID: 31782311 DOI: 10.1080/08916934.2019.1696778] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Background: Systemic lupus erythematosus (SLE) is associated with a constellation of complications affecting multiple organs, including neuropsychiatric manifestations (NPSLE) and ischaemic events, leading to increased long-term morbidity. Antiphospholipid antibodies (aPL) are a major determinant of vascular inflammation and thromboembolic risk. The diagnostic role of anti-phosphatidylserine/prothrombin (aPS/PT) antibodies in this setting is incompletely defined.Aim: To verify whether aPS/PT add to diagnostics and disease stratification in patients with SLE with or without other aPL.Methods: 131 consecutive patients were studied, including 20 patients with SLE and secondary antiphospholipid syndrome (APS). aPS/PT IgG and IgM were assessed through ELISA and patients were stratified based on the presence of other aPL, on their clinical and laboratory features at time of blood sampling and on their clinical history. Synthetic indices of disease activity, chronic damage and cardiovascular risk were calculated at time of venipuncture.Results: Fifty-one (38.9%) patients with SLE had aPS/PT and 15 (11.5%) patients had aPS/PT as the only aPL (aPS/PT-only). aPS/PT-only patients had a significantly higher prevalence of NPSLE than quadruple aPL-negative patients (p = .007). Patients with aPS/PT were more likely to have a history of ischaemia, thrombocytopenia and Libman-Sacks' endocarditis. The presence of aPS/PT also associated with previous accrual of at least one damage item (p = .043), but had limited predictive values for damage progression in the short term.Conclusion: aPS/PT antibodies provide non-redundant information that could contribute to risk assessment and stratification of patients with SLE.
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Affiliation(s)
- Giuseppe A Ramirez
- Università Vita-Salute San Raffaele, Milan, Italy.,Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.,Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Valentina Canti
- Università Vita-Salute San Raffaele, Milan, Italy.,Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.,Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Stefania Del Rosso
- Laboratory Medicine, Autoimmunity Section, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Roberta Erra
- Università Vita-Salute San Raffaele, Milan, Italy.,Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.,Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Lucia Moiola
- Department of Neurology, Division of Neuroscience, Institute of Experimental Neurology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Marco Magnoni
- Cardiothoracic and Vascular Department, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Enrica P Bozzolo
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.,Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Angelo A Manfredi
- Università Vita-Salute San Raffaele, Milan, Italy.,Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.,Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Patrizia Rovere-Querini
- Università Vita-Salute San Raffaele, Milan, Italy.,Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.,Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, Milan, Italy
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21
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Heikal N, Martins TB, White SK, Willis R, Ware Branch D, Schmidt RL, Tebo AE. Laboratory Evaluation of Antiphospholipid Syndrome. Am J Clin Pathol 2019; 152:638-646. [PMID: 31305881 DOI: 10.1093/ajcp/aqz085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Anti-β2 glycoprotein I domain I (anti-domain I) and anti-phosphatidylserine/prothrombin (aPS/PT) antibodies are present in patients with antiphospholipid syndrome (APS); however, their use in evaluation remains unclear. METHODS Diagnostic attributes of lupus anticoagulant (LAC), anti-domain I IgG, anti-cardiolipin, anti-β2 glycoprotein I (anti-β2GPI), and aPS/PT IgG and IgM antibodies were assessed in 216 patients evaluated for APS. RESULTS LAC had the best odds ratio (OR, 14.2) while that for anti-domain 1 IgG was comparable to anti-β2GPI IgG (OR, 8.3 vs 9.4) but higher than all others. Significant correlations were observed for thrombosis (P = .03) and pregnancy-related morbidity (P = .001) with anti-domain IgG and for any thrombosis with aPS/PT IgG (P = .006). Use of noncriteria antiphospholipid with or without criteria markers did not significantly increase the probability to diagnose APS. CONCLUSIONS Noncriteria tests can contribute to diagnosis and stratification of APS but do not improve diagnostic yield. Optimal strategies for implementation require prospective investigation.
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Affiliation(s)
- Nahla Heikal
- ARUP Institute of Clinical and Experimental Pathology, University of Utah School of Medicine, Salt Lake City
- Department of Pathology, University of Utah School of Medicine, Salt Lake City
| | - Thomas B Martins
- ARUP Institute of Clinical and Experimental Pathology, University of Utah School of Medicine, Salt Lake City
| | - Sandra K White
- Department of Pathology, University of Utah School of Medicine, Salt Lake City
| | - Rohan Willis
- Division of Rheumatology, Department of Internal Medicine, University of Texas Medical Branch, Galveston
| | - D Ware Branch
- Division of Maternal-Fetal Medicine, University of Utah School of Medicine, Salt Lake City
- Intermountain Healthcare, Salt Lake City, UT
| | - Robert L Schmidt
- ARUP Institute of Clinical and Experimental Pathology, University of Utah School of Medicine, Salt Lake City
- Department of Pathology, University of Utah School of Medicine, Salt Lake City
| | - Anne E Tebo
- ARUP Institute of Clinical and Experimental Pathology, University of Utah School of Medicine, Salt Lake City
- Department of Pathology, University of Utah School of Medicine, Salt Lake City
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Cifù A, Domenis R, Pistis C, Curcio F, Fabris M. Anti-β2-glycoprotein I and anti-phosphatidylserine/prothrombin antibodies exert similar pro-thrombotic effects in peripheral blood monocytes and endothelial cells. Auto Immun Highlights 2019; 10:3. [PMID: 32257059 PMCID: PMC6909027 DOI: 10.1186/s13317-019-0113-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 03/25/2019] [Indexed: 11/13/2022]
Abstract
Purpose The introduction of the anti-phosphatidylserine/prothrombin (aPS/PT) antibodies among the routinely investigated anti-phospholipid (aPL) antibodies led to an improvement in anti-phospholipid syndrome (APS) laboratory diagnostic performance; however, their pathogenic mechanism is still substantially undefined. To support clinical data and future inclusion as possible new criteria antibodies, we designed a head-to-head study to directly compare the procoagulant effects sustained in vitro by aPS/PT to those sustained by anti-β2-glycoprotein I (aβ2GpI) domain 1-specific antibodies. Methods Blood donors-derived monocytes and endothelial cells (HUVEC) were stimulated with lipopolysaccharides (LPS) alone or in combination with the IgG fractions isolated from the serum of six APS patients, positive only for aβ2GpI or for aPS/PT antibodies. As control, cells were incubated with LPS plus the IgG isolated from blood donors. Tissue factor (TF) mRNA expression was measured after four hours incubation by real-time PCR. Nitric oxide (NO) levels were measured in cells supernatant after 16 h incubation by colorimetric assay. Results aPS/PT and aβ2GpI IgG antibodies fractions showed comparable ability to enhance LPS-induced TF mRNA expression, either in monocytes and in HUVEC. Compared to LPS alone, we found that NO levels are strongly overproduced in HUVEC treated with LPS plus aβ2GpI and aPS/PT IgG fractions. Conclusions Our data support the significant and independent role of aPS/PT in the pathogenesis of the thrombotic events in APS patients, possibly adding new light to the therapeutic management of cases characterized by the sole presence of aPS/PT IgG antibodies. Electronic supplementary material The online version of this article (10.1186/s13317-019-0113-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- A Cifù
- 1Deparment of Medical Area (DAME), University of Udine, Udine, Italy
| | - R Domenis
- 1Deparment of Medical Area (DAME), University of Udine, Udine, Italy
| | - C Pistis
- 2Department of Laboratory Medicine, Institute of Clinical Pathology, University Hospital of Udine, Via Chiusaforte, Ingresso H, 33100 Udine, Italy
| | - F Curcio
- 1Deparment of Medical Area (DAME), University of Udine, Udine, Italy
| | - M Fabris
- 2Department of Laboratory Medicine, Institute of Clinical Pathology, University Hospital of Udine, Via Chiusaforte, Ingresso H, 33100 Udine, Italy
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Nakamura H, Oku K, Amengual O, Ohmura K, Fujieda Y, Kato M, Bohgaki T, Yasuda S, Atsumi T. First-Line, Non-Criterial Antiphospholipid Antibody Testing for the Diagnosis of Antiphospholipid Syndrome in Clinical Practice: A Combination of Anti-β 2 -Glycoprotein I Domain I and Anti-Phosphatidylserine/Prothrombin Complex Antibodies Tests. Arthritis Care Res (Hoboken) 2019; 70:627-634. [PMID: 28686816 DOI: 10.1002/acr.23310] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 06/20/2017] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To assess the value of a combination of anti-β2 -glycoprotein I (anti-β2 GPI) domain I antibody and anti-phosphatidylserine/prothrombin complex (anti-PS/PT) antibody tests for the diagnosis of antiphospholipid syndrome (APS). METHODS This cross-sectional study involved a cohort of the patients who visited our clinic from April 2005 to March 2013. Tests for anti-β2 GPI domain I antibodies, IgG anti-PS/PT antibodies, and IgM anti-PS/PT antibodies, together with tests for criteria-defined antiphospholipid antibodies (aPL), were performed in all patients. The total antiphospholipid score (aPL-S) was calculated for each patient according to titers of and positivity for aPL. RESULTS The study enrolled 157 patients (51 patients with APS and 106 with non-APS autoimmune diseases). All 21 patients positive for both anti-β2 GPI domain I antibodies and IgG and/or IgM (IgG/IgM) anti-PS/PT antibodies had APS with a high total aPL-S (median 46, range 26-76), as did all of the 10 patients who were positive for anti-β2 GPI domain I antibodies but negative for IgG/IgM anti-PS/PT antibodies (median 22, range 4-39). Of the 14 patients who were positive for IgG/IgM anti-PS/PT antibodies but negative for anti-β2 GPI domain I antibodies, 11 (79%) had APS; these individuals also had high total aPL-S values (median 23, range 11-60). In contrast, only 9 of the 112 patients (8%) with none of these antibodies had APS. CONCLUSION The combination of the IgG anti-β2 GPI domain I antibody and IgG/IgM anti-PS/PT antibody tests shows a high positive predictive value for the diagnosis of APS and a strong correlation with the aPL-S. This combination as the first-line test for aPL may contribute to the simple and definite identification of APS with a high risk of thrombosis in clinical practice.
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Affiliation(s)
| | - Kenji Oku
- Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Olga Amengual
- Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kazumasa Ohmura
- Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuichiro Fujieda
- Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masaru Kato
- Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | | | - Shinsuke Yasuda
- Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tatsuya Atsumi
- Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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24
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Litvinova E, Darnige L, Kirilovsky A, Burnel Y, de Luna G, Dragon-Durey MA. Prevalence and Significance of Non-conventional Antiphospholipid Antibodies in Patients With Clinical APS Criteria. Front Immunol 2018; 9:2971. [PMID: 30619328 PMCID: PMC6302212 DOI: 10.3389/fimmu.2018.02971] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 12/03/2018] [Indexed: 12/29/2022] Open
Abstract
Background: The biological diagnostics of antiphospholipid syndrome (APS) takes into account the persistent positivity for anticardiolipin and/or anti-β2GP1 antibodies and/or presence of lupus anticoagulant (LA). However, some non-conventional antiphospholipid antibodies have emerged that could help in the diagnosis of APS. Objectives: To study the potential usefulness of non-conventional antiphospholipid antibodies in clinical practice. Methods: Eighty-seven patients, aged from 15 to 92 years were included and classified in following groups: 41 patients positive for the conventional antibodies with clinical criterion of APS (31 with primary APS and 10 secondary), 17 seronegative APS (SNAPS) patients (i.e., persistent negativity for the conventional antibodies with a strong clinical suspicion of APS), 11 asymptomatic antiphospholipid antibodies carriers (i.e., persistent positivity for the conventional antibodies without clinical evidence of APS), and 18 patients presenting with a first thrombotic or obstetrical event. IgG and IgM were detected to the following antigens: phosphatidylserine/prothrombin (PS/PT) by ELISA, and phosphatidic acid, phosphatidyl-ethanolamine, phosphatidyl-glycerol, phosphatidyl-inositol, phosphatidylserine, annexin V, prothrombin by immunodot. Anti-β2GP1 IgA, and anti-β2GP1 domain 1 IgG were detected by chemiluminescence. Results: Positivity for the non-conventional antibodies was correlated with APS severity; patients with catastrophic APS (CAPS) being positive for 10.7 (Median, Range: 5–14) non-conventional antibodies. 9/17 seronegative patients were positive for at least one of non-conventional antibodies. A study of non-supervised hierarchical clustering of all markers revealed that anti-PS/PT antibodies showed high correlation with the presence of LA. All patients with APS triple positivity (highest risk profile) exhibited also persistent positivity for anti-PS/PT antibodies. Conclusions: Our data obtained from a prospective cohort constituted mainly by patients with primary APS, suggest that non-conventional APS antibodies may be useful for patients classified as SNAPS. They demonstrate the potential value of aPS/PT antibodies as a strong marker of APS. We propose that anti-PS/PT antibodies could be a surrogate APS biological marker of LA to classify in high-risk profile patients treated by direct oral anticoagulants (DOACs), in whom LA detection cannot be achieved.
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Affiliation(s)
| | - Luc Darnige
- Department of Biological Haematology, HEGP, APHP, Paris, France.,Inserm UMR-S1140, Paris, France.,Paris Descartes University, Paris, France
| | | | - Yann Burnel
- Department of Biological Haematology, HEGP, APHP, Paris, France
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Shi H, Zheng H, Yin YF, Hu QY, Teng JL, Sun Y, Liu HL, Cheng XB, Ye JN, Su YT, Wu XY, Zhou JF, Norman GL, Gong HY, Shi XM, Peng YB, Wang XF, Yang CD. Antiphosphatidylserine/prothrombin antibodies (aPS/PT) as potential diagnostic markers and risk predictors of venous thrombosis and obstetric complications in antiphospholipid syndrome. Clin Chem Lab Med 2018; 56:614-624. [PMID: 29166262 DOI: 10.1515/cclm-2017-0502] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 09/18/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND The aim of the study was to determine the prevalence and clinical associations of antiphosphatidylserine/prothrombin antibodies (aPS/PT) with thrombosis and pregnancy loss in Chinese patients with antiphospholipid syndrome (APS) and seronegative APS (SNAPS). METHODS One hundred and eighty six Chinese patients with APS (67 primary, 119 secondary), 48 with SNAPS, 176 disease controls (79 systemic lupus erythematosus [SLE], 29 Sjogren's syndrome [SS], 30 ankylosing spondylitis [AS], 38 rheumatoid arthritis [RA]) and 90 healthy donors were examined. IgG and IgM aPS/PT, IgG/IgM/IgA anticardiolipin (aCL) and IgG/IgM/IgA anti-β2-glycoprotein I (anti-β2GPI) antibodies were tested by ELISA. RESULTS One hundred and sixty (86.0%) of APS patients were positive for at least one aPS/PT isotype. One hundred and thirty five (72.6%) were positive for IgG aPS/PT, 124/186 (66.7%) positive for IgM aPS/PT and 99 (53.2%) positive for both. Approximately half of the SNAPS patients were positive for IgG and/or IgM aPS/PT. Highly significant associations between IgG aPS/PT and venous thrombotic events (odds ratio [OR]=6.72) and IgG/IgM aPS/PT and pregnancy loss (OR=9.44) were found. Levels of IgM aPS/PT were significantly different in APS patients with thrombotic manifestations and those with fetal loss (p=0.014). The association between IgG/IgM aPS/PT and lupus anticoagulant (LAC) was highly significant (p<0.001). When both were positive, the OR for APS was 101.6. Notably, 91.95% (80/87) of LAC-positive specimens were positive for IgG and/or IgM aPS/PT, suggesting aPS/PT is an effective option when LAC testing is not available. CONCLUSIONS Anti-PS/PT antibody assays demonstrated high diagnostic performance for Chinese patients with APS, detected some APS patients negative for criteria markers and may serve as potential risk predictors for venous thrombosis and obstetric complications.
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Affiliation(s)
- Hui Shi
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Hui Zheng
- Department of Rheumatology and Immunology, Affiliated Hospital of Taishan Medical University, Shandong, P.R. China
| | - Yu-Feng Yin
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Qiong-Yi Hu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Jia-Lin Teng
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Yue Sun
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Hong-Lei Liu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xiao-Bing Cheng
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Jun-Na Ye
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Yu-Tong Su
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xin-Yao Wu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Jin-Feng Zhou
- Werfen Medical Device Trading (Beijing) Co. Ltd., Beijing, P.R. China
| | | | - Hui-Yun Gong
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xin-Ming Shi
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Yi-Bing Peng
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xue-Feng Wang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai 200025, P.R. China, Phone: +86 21 54667770, Fax: +86 21 64333548
| | - Cheng-De Yang
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai 200025, P.R. China, Phone: +86 21 64370045, Fax: +86 21 34186000
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26
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Ganapati A, Goel R, Kabeerdoss J, Gowri M, Mathew J, Danda D. Study of clinical utility of antibodies to phosphatidylserine/prothrombin complex in Asian-Indian patients with suspected APS. Clin Rheumatol 2019; 38:545-53. [DOI: 10.1007/s10067-018-4301-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/09/2018] [Accepted: 09/14/2018] [Indexed: 10/28/2022]
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Abstract
PURPOSE OF REVIEW Laboratory criteria for the classification of antiphospholipid syndrome include the detection of a lupus anticoagulant and/or anticardiolipin and anti-β2-glycoprotein I antibodies. However, the majority of patients who test positive in these assays do not have thrombosis. Current risk-stratification tools are largely limited to the antiphospholipid antibody profile and traditional thrombotic risk factors. RECENT FINDINGS Novel biomarkers that correlate with disease activity and potentially provide insight into future clinical events include domain 1 specific anti-β2GPI antibodies, antibodies to other phospholipids or phospholipid/protein antigens (such as anti-PS/PT), and functional/biological assays such as thrombin generation, complement activation, levels of circulating microparticles, and annexin A5 resistance. Clinical risk scores may also have value in predicting clinical events. Biomarkers that predict thrombosis risk in patients with antiphospholipid antibodies have been long sought, and several biomarkers have been proposed. Ultimately, integration of biomarkers with established assays and clinical characteristics may offer the best chance of identifying patients at highest risk of APS-related complications.
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Affiliation(s)
- Shruti Chaturvedi
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37235, USA
| | - Keith R McCrae
- Department of Cellular and Molecular Medicine, Taussig Cancer Institute, Cleveland Clinic, CA6-154, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
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28
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Kopytek M, Natorska J, Undas A. Antiphosphatidylserine/prothrombin (aPS/PT) antibodies are associated with Raynaud phenomenon and migraine in primary thrombotic antiphospholipid syndrome. Lupus 2018; 27:812-819. [DOI: 10.1177/0961203317751644] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Objectives Antibodies to phosphatidylserine/prothrombin complex (aPS/PT) detectable in sera of some patients with antiphospholipid syndrome (APS) have been shown to correlate with thrombosis. However, associations of aPS/PT antibodies with APS related disorders remain unclear. Aim To evaluate whether there are any associations between aPS/PT antibodies and Raynaud phenomenon, migraine and/or valvular lesions in primary thrombotic APS (PAPS). Methods We enrolled 67 consecutive patients (56 women) with thrombotic PAPS (VTE in 80.6%), aged 46.2 ± 13.5 years. The exclusion criteria were: acute coronary syndromes or stroke within preceding 6 months, cancer, severe comorbidities and pregnancy. The IgG and IgM aPS/PT antibodies were determined by ELISA with the cut-off of 30 units. We recorded Raynaud phenomenon, migraine and valvular lesions. Results Positive IgM or/and IgG aPS/PT antibodies were observed in 29 patients (43.3%), with a higher prevalence of IgM antibodies ( n = 27, 40.3%) compared with IgG isotype ( n = 12, 17.9%, p = 0.014). aPS/PT antibodies were observed most commonly in patients with triple aPL ( n = 12, 85.7%) compared with those with double ( n = 5, 35.7%) or single aPL antibodies (n = 12, 30.8%, p = 0.03), with no association with demographics, the ANA titre, the type of thrombotic events or medications. Raynaud phenomenon, migraine and valvular lesions were observed in 15% ( n = 10), 30% ( n = 20) and 18% ( n = 12) of the patients, respectively. Raynaud phenomenon and migraine, but not valvular lesions, were markedly more frequent in PAPS patients presenting with positive aPS/PT antibodies ( n = 10, 34.5% vs. n = 0, 0%; p = 0.0001). Conclusions In PAPS patients aPS/PT antibodies are related to the occurrence of both Raynaud phenomenon and migraine.
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Affiliation(s)
- M Kopytek
- John Paul II Hospital, Kraków, Poland
| | - J Natorska
- John Paul II Hospital, Kraków, Poland
- Institute of Cardiology, Jagiellonian University Medical College, Kraków, Poland
| | - A Undas
- John Paul II Hospital, Kraków, Poland
- Institute of Cardiology, Jagiellonian University Medical College, Kraków, Poland
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Simonin L, Pasquier E, Leroyer C, Cornec D, Lemerle J, Bendaoud B, Hillion S, Pers JO, Couturaud F, Renaudineau Y. Lymphocyte Disturbances in Primary Antiphospholipid Syndrome and Application to Venous Thromboembolism Follow-Up. Clin Rev Allergy Immunol 2017; 53:14-27. [PMID: 27342459 DOI: 10.1007/s12016-016-8568-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Among patients with venous thromboembolism (VTE), the persistent detection of antiphospholipid (aPL) antibodies (Ab) represents an independent high risk factor for recurrence. However, oral anticoagulation vitamin K antagonist therapy, frequently used in these patients, is problematic in assessing and/or confirming a diagnosis of primary aPL syndrome (pAPS), suggesting use of alternative strategies. For this reason, and by analogy with other autoimmune diseases, a flow cytometer approach testing peripheral T cell subsets (CD3, CD4, and CD8), B cell subsets (B1, transitional, naive, and memory), and NK cells can be proposed. As an example and to validate the concept, pAPS patients selected from the monocentric VTE case-control EDITH's cohort were selected during their follow-up. As suspected and in contrast to non-APS VTE patients, other autoimmune diseases, and controls, pAPS VTE patients displayed specific lymphocyte disturbances. Quantitative and qualitative modifications were related to total CD4+ T cell reduction, a lower CD4/CD8 ratio, and disturbance in B cell homeostasis with increased proportions of B1 cells, transitional B cells (CD24++CD38++), and naive B cells (IgD+CD27-), while memory B cells (IgD+CD27+ and IgD-CD27+) were reduced. Interestingly, the absolute number of CD4+ T cells positively correlated with IgG anti-cardiolipin Ab levels. Altogether, disturbances of T and B cell homeostasis characterized pAPS VTE patients during their follow-up. This suggests a means of profiling that could be used in addition to existing criteria to characterize them.
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Zhang S, Wu Z, Zhang W, Zhao J, Norman GL, Zeng X, Zhang F, Li Y. Antibodies to phosphatidylserine/prothrombin (aPS/PT) enhanced the diagnostic performance in Chinese patients with antiphospholipid syndrome. ACTA ACUST UNITED AC 2018; 56:939-946. [PMID: 29561729 DOI: 10.1515/cclm-2017-0811] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 11/27/2017] [Indexed: 11/15/2022]
Abstract
Abstract
Background:
Increasing evidence has highlighted the role of non-criteria antiphospholipid antibodies (aPLs) as important supplements to the current criteria aPLs for the diagnosis of antiphospholipid syndrome (APS). In this retrospective study, we evaluated the clinical relevance of antibodies to phosphatidylserine/prothrombin (aPS/PT) in Chinese patients with APS.
Methods:
A total of 441 subjects were tested, including 101 patients with primary APS (PAPS), 140 patients with secondary APS (SAPS), 161 disease controls (DCs) and 39 healthy controls (HCs). Serum IgG/IgM aPS/PT was determined by ELISA.
Results:
The levels of IgG/IgM aPS/PT were significantly increased in patients with APS compared with DCs and HCs. IgG and IgM aPS/PT were present in 29.7% and 54.5% of PAPS, and 42.1% and 53.6% of SAPS, respectively. For diagnosis of APS, IgG aCL exhibited the highest positive likelihood ratio (LR+) of 21.60, followed by LA (13.84), IgG aβ2GP1 (9.19) and IgG aPS/PT (8.49). aPS/PT was detected in 13.3% of seronegative PAPS patients and 31.3% of seronegative SAPS patients. LA exhibited the highest OR of 3.64 in identifying patients with thrombosis, followed by IgG aCL (OR, 2.63), IgG aPS/PT (OR, 2.55) and IgG aβ2GP1 (OR, 2.33). LA and IgG aCL were correlated with both arterial and venous thrombosis, whereas IgG aPS/PT and IgG aβ2GP1 correlated with venous or arterial thrombosis, respectively.
Conclusions:
Our findings suggest that the inclusion of IgG/IgM aPS/PT may enhance the diagnostic performance for APS, especially in those in whom APS is highly suspected, but conventional aPLs are repeatedly negative. In addition, IgG aPS/PT may contribute to identify patients at risk of thrombosis.
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Affiliation(s)
- Shulan Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, P.R. China
- Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, P.R. China
| | - Ziyan Wu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, P.R. China
- Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, P.R. China
| | - Wen Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, P.R. China
- Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, P.R. China
| | - Jiuliang Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, P.R. China
- Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, P.R. China
| | | | - Xiaofeng Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, P.R. China
- Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, P.R. China
| | - Fengchun Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, P.R. China
- Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, P.R. China
| | - Yongzhe Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, P.R. China
- Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, No. 1 Shuai Fu Yuan, Eastern District, Beijing 100730, P.R. China
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31
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Zohoury N, Bertolaccini ML, Rodriguez-Garcia JL, Shums Z, Ateka-Barrutia O, Sorice M, Norman GL, Khamashta M. Closing the Serological Gap in the Antiphospholipid Syndrome: The Value of "Non-criteria" Antiphospholipid Antibodies. J Rheumatol 2017; 44:1597-1602. [PMID: 28864642 DOI: 10.3899/jrheum.170044] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/14/2017] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Most clinicians use the 2006 Sydney classification criteria to evaluate patients suspected of having antiphospholipid syndrome (APS). Although sensitive and specific for APS, many patients fulfilling clinical criteria for the syndrome are persistently negative for the specific serological tests ("laboratory criteria"). These "seronegative APS" (SN-APS) patients can go undiagnosed and untreated until they experience serious clinical events. This study's objective was to describe antibody profiles of SN-APS patients using non-criteria markers, assess the clinical utility of these markers separately and in combination, and suggest incorporation into guidelines for patients suspected of APS. METHODS We categorized 175 consecutive patients suspected of APS into 2 subgroups: 107 fulfilling Sydney APS classification for seropositive APS (SP-APS) and 68 with clinical manifestations suggestive of APS but having negative serology, on 2 occasions, for criteria markers (SN-APS). On study inclusion, samples were retested for criteria and 11 non-criteria markers, including antiphosphatidylserine/prothrombin antibodies. RESULTS Using 4 of 11 non-criteria tests, a cumulative 30.9% of SN-APS patients were detected. Combining results of all 11 non-criteria tests, 25 SN-APS (36.8%) and 89 SP-APS (83.2%) were positive for 1 or more non-criteria antibodies. CONCLUSION Failure to diagnose APS can result in severe clinical consequences. Patients displaying clinical features of APS, but negative for conventional criteria markers, should undergo additional testing for non-criteria biomarkers. In our cohort, around one-third of SN-APS patients showed reactivity to 1 or more non-criteria markers. An update to the current classification criteria incorporating new serological markers should be considered to identify and stratify patients with APS for more effective treatment and management.
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Affiliation(s)
- Navid Zohoury
- From Inova Diagnostics Inc., San Diego, California, USA; Academic Department of Vascular Surgery, King's College London; Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital, London, UK; Department of Internal Medicine, University of Castilla-La Mancha, Albacete, Spain; Department of Experimental Medicine, La Sapienza University, Rome, Italy. .,Navid Zohoury, Zakera Shums, and Gary L. Norman are employees of Inova Diagnostics. .,N. Zohoury, BS, Inova Diagnostics Inc.; M.L. Bertolaccini, PhD, Academic Department of Vascular Surgery, King's College London; J.L. Rodriguez-Garcia, PhD, Department of Internal Medicine, University of Castilla-La Mancha; Z. Shums, MSc, Inova Diagnostics Inc.; O. Ateka-Barrutia, MD, Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital; M. Sorice, MD, Department of Experimental Medicine, La Sapienza University; G.L. Norman, PhD (AGAF, FAASLD), Inova Diagnostics Inc.; M. Khamashta, MD, PhD (FRCP), Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital.
| | - Maria Laura Bertolaccini
- From Inova Diagnostics Inc., San Diego, California, USA; Academic Department of Vascular Surgery, King's College London; Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital, London, UK; Department of Internal Medicine, University of Castilla-La Mancha, Albacete, Spain; Department of Experimental Medicine, La Sapienza University, Rome, Italy.,Navid Zohoury, Zakera Shums, and Gary L. Norman are employees of Inova Diagnostics.,N. Zohoury, BS, Inova Diagnostics Inc.; M.L. Bertolaccini, PhD, Academic Department of Vascular Surgery, King's College London; J.L. Rodriguez-Garcia, PhD, Department of Internal Medicine, University of Castilla-La Mancha; Z. Shums, MSc, Inova Diagnostics Inc.; O. Ateka-Barrutia, MD, Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital; M. Sorice, MD, Department of Experimental Medicine, La Sapienza University; G.L. Norman, PhD (AGAF, FAASLD), Inova Diagnostics Inc.; M. Khamashta, MD, PhD (FRCP), Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital
| | - Jose Luis Rodriguez-Garcia
- From Inova Diagnostics Inc., San Diego, California, USA; Academic Department of Vascular Surgery, King's College London; Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital, London, UK; Department of Internal Medicine, University of Castilla-La Mancha, Albacete, Spain; Department of Experimental Medicine, La Sapienza University, Rome, Italy.,Navid Zohoury, Zakera Shums, and Gary L. Norman are employees of Inova Diagnostics.,N. Zohoury, BS, Inova Diagnostics Inc.; M.L. Bertolaccini, PhD, Academic Department of Vascular Surgery, King's College London; J.L. Rodriguez-Garcia, PhD, Department of Internal Medicine, University of Castilla-La Mancha; Z. Shums, MSc, Inova Diagnostics Inc.; O. Ateka-Barrutia, MD, Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital; M. Sorice, MD, Department of Experimental Medicine, La Sapienza University; G.L. Norman, PhD (AGAF, FAASLD), Inova Diagnostics Inc.; M. Khamashta, MD, PhD (FRCP), Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital
| | - Zakera Shums
- From Inova Diagnostics Inc., San Diego, California, USA; Academic Department of Vascular Surgery, King's College London; Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital, London, UK; Department of Internal Medicine, University of Castilla-La Mancha, Albacete, Spain; Department of Experimental Medicine, La Sapienza University, Rome, Italy.,Navid Zohoury, Zakera Shums, and Gary L. Norman are employees of Inova Diagnostics.,N. Zohoury, BS, Inova Diagnostics Inc.; M.L. Bertolaccini, PhD, Academic Department of Vascular Surgery, King's College London; J.L. Rodriguez-Garcia, PhD, Department of Internal Medicine, University of Castilla-La Mancha; Z. Shums, MSc, Inova Diagnostics Inc.; O. Ateka-Barrutia, MD, Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital; M. Sorice, MD, Department of Experimental Medicine, La Sapienza University; G.L. Norman, PhD (AGAF, FAASLD), Inova Diagnostics Inc.; M. Khamashta, MD, PhD (FRCP), Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital
| | - Oier Ateka-Barrutia
- From Inova Diagnostics Inc., San Diego, California, USA; Academic Department of Vascular Surgery, King's College London; Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital, London, UK; Department of Internal Medicine, University of Castilla-La Mancha, Albacete, Spain; Department of Experimental Medicine, La Sapienza University, Rome, Italy.,Navid Zohoury, Zakera Shums, and Gary L. Norman are employees of Inova Diagnostics.,N. Zohoury, BS, Inova Diagnostics Inc.; M.L. Bertolaccini, PhD, Academic Department of Vascular Surgery, King's College London; J.L. Rodriguez-Garcia, PhD, Department of Internal Medicine, University of Castilla-La Mancha; Z. Shums, MSc, Inova Diagnostics Inc.; O. Ateka-Barrutia, MD, Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital; M. Sorice, MD, Department of Experimental Medicine, La Sapienza University; G.L. Norman, PhD (AGAF, FAASLD), Inova Diagnostics Inc.; M. Khamashta, MD, PhD (FRCP), Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital
| | - Maurizio Sorice
- From Inova Diagnostics Inc., San Diego, California, USA; Academic Department of Vascular Surgery, King's College London; Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital, London, UK; Department of Internal Medicine, University of Castilla-La Mancha, Albacete, Spain; Department of Experimental Medicine, La Sapienza University, Rome, Italy.,Navid Zohoury, Zakera Shums, and Gary L. Norman are employees of Inova Diagnostics.,N. Zohoury, BS, Inova Diagnostics Inc.; M.L. Bertolaccini, PhD, Academic Department of Vascular Surgery, King's College London; J.L. Rodriguez-Garcia, PhD, Department of Internal Medicine, University of Castilla-La Mancha; Z. Shums, MSc, Inova Diagnostics Inc.; O. Ateka-Barrutia, MD, Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital; M. Sorice, MD, Department of Experimental Medicine, La Sapienza University; G.L. Norman, PhD (AGAF, FAASLD), Inova Diagnostics Inc.; M. Khamashta, MD, PhD (FRCP), Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital
| | - Gary L Norman
- From Inova Diagnostics Inc., San Diego, California, USA; Academic Department of Vascular Surgery, King's College London; Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital, London, UK; Department of Internal Medicine, University of Castilla-La Mancha, Albacete, Spain; Department of Experimental Medicine, La Sapienza University, Rome, Italy.,Navid Zohoury, Zakera Shums, and Gary L. Norman are employees of Inova Diagnostics.,N. Zohoury, BS, Inova Diagnostics Inc.; M.L. Bertolaccini, PhD, Academic Department of Vascular Surgery, King's College London; J.L. Rodriguez-Garcia, PhD, Department of Internal Medicine, University of Castilla-La Mancha; Z. Shums, MSc, Inova Diagnostics Inc.; O. Ateka-Barrutia, MD, Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital; M. Sorice, MD, Department of Experimental Medicine, La Sapienza University; G.L. Norman, PhD (AGAF, FAASLD), Inova Diagnostics Inc.; M. Khamashta, MD, PhD (FRCP), Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital
| | - Munther Khamashta
- From Inova Diagnostics Inc., San Diego, California, USA; Academic Department of Vascular Surgery, King's College London; Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital, London, UK; Department of Internal Medicine, University of Castilla-La Mancha, Albacete, Spain; Department of Experimental Medicine, La Sapienza University, Rome, Italy.,Navid Zohoury, Zakera Shums, and Gary L. Norman are employees of Inova Diagnostics.,N. Zohoury, BS, Inova Diagnostics Inc.; M.L. Bertolaccini, PhD, Academic Department of Vascular Surgery, King's College London; J.L. Rodriguez-Garcia, PhD, Department of Internal Medicine, University of Castilla-La Mancha; Z. Shums, MSc, Inova Diagnostics Inc.; O. Ateka-Barrutia, MD, Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital; M. Sorice, MD, Department of Experimental Medicine, La Sapienza University; G.L. Norman, PhD (AGAF, FAASLD), Inova Diagnostics Inc.; M. Khamashta, MD, PhD (FRCP), Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women's Health, King's College London, St. Thomas' Hospital
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Lee JS, Gu J, Park HS, Yoo HJ, Kim HK. Coexistence of anti-β2-glycoprotein I domain I and anti-phosphatidylserine/prothrombin antibodies suggests strong thrombotic risk. Clin Chem Lab Med 2017; 55:882-889. [PMID: 28002027 DOI: 10.1515/cclm-2016-0676] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 11/01/2016] [Indexed: 12/29/2022]
Abstract
BACKGROUND Highly specific assays for measuring antiphospholipid antibodies (aPLs) are required for accurate assessment of thrombotic risk. aPLs against β2-glycoprotein I domain I (anti-β2GPIdI) and against prothrombin complexed with phosphatidylserine (anti-PS/PT) have been recently identified as being associated with a hypercoagulable state. This study evaluated the synergism between anti-β2GPIdI and anti-PS/PT for predicting thrombotic events. METHODS A total of 180 patients with clinical suspicion of hypercoagulability were evaluated. The plasma levels of lupus anticoagulant (LA) and antibodies against anticardiolipin (anti-CL) (IgG and IgM), β2GPI (IgG and IgM), PS/PT (IgG and IgM), and β2GPI dI (IgG) were measured. RESULTS IgG anti-β2GPIdI and LA were highly associated with thrombosis. Mean values and positivity rates of IgG anti-β2GPI dI and IgG anti-PS/PT were significantly higher in the triple-positive group (LA+, IgG anti-CL+, IgG anti-β2GPI+) than in the other groups. Interestingly, the thrombotic risk [odds ratio (OR) 24.400, 95% confidence interval (CI) 1.976-63.273, p<0.001] of the newly defined triple positive group (LA+, IgG anti-CL+, IgG anti-β2GPIdI+; OR 11.182, 95% CI 1.976-63.273, p=0.006) was more than twice that of the triple-positive group (LA+, IgG anti-CL+, IgG anti-β2GPI+). Double positivity for IgG anti-PS/PT and IgG anti-β2GPI also indicated significant thrombotic risk (OR 7.467, 95% CI 2.350-23.729, p=0.001). Furthermore, the thrombotic risk associated with double positivity for IgG anti-PS/PT and IgG anti-β2GPIdI was markedly elevated (OR 33.654, 95% CI 6.322-179.141, p<0.001). CONCLUSIONS Our data suggest that simultaneous measurement of IgG anti-β2GPIdI and IgG anti-PS/PT may improve clinical decision-making for aPL-positive patients.
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Affiliation(s)
- Jee-Soo Lee
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of
| | - JaYoon Gu
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of
| | - Hee Sue Park
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of
| | - Hyun Ju Yoo
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of
| | - Hyun Kyung Kim
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of
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Hoxha A, Mattia E, Tonello M, Grava C, Pengo V, Ruffatti A. Antiphosphatidylserine/prothrombin antibodies as biomarkers to identify severe primary antiphospholipid syndrome. ACTA ACUST UNITED AC 2017; 55:890-898. [DOI: 10.1515/cclm-2016-0638] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 09/23/2016] [Indexed: 11/15/2022]
Abstract
Abstract
Background:
Anti-phosphatidylserine/prothrombin (aPS/PT) antibodies have begun to be considered potentional biomarkers for antiphospholipid syndrome (APS). This cohort study investigate the role of aPS/PT antibodies as a risk factor for severe APS by evaluating the association between those antibodies and clinical/laboratory profiles of APS.
Methods:
Plasma/serum samples from 197 APS patients, 100 healthy subjects and 106 patients with autoimmune diseases were collected. IgG/IgM aPS/PT antibodies were assayed using commercial ELISA kit.
Results:
Prevalences of IgG and IgM aPS/PT (p<0.0001 and p=0.0009, respectively) and their titres (p<0.0001 and p=0.0002, respectively) were significantly higher in thrombosis/pregnancy group with respect to pregnancy morbidity alone. Prevalences of IgG and IgM aPS/PT (p<0.0001 and p=0.0004, respectively) and their mean levels (p=0.0001 for both) were significantly higher in the prematurity linked to life-threatening obstetric complications group with respect to miscarriage group. There was a significant relationship between IgG and IgM aPS/PT (p=0.001 and p=0.0002) and their mean levels were higher (p=0.0004 and p=0.0002, respectively) in the thrombotic microangiopathy group, considered a milestone manifestation of catastrophic APS. The relationship between IgG and IgM aPS/PT was significant and mean levels were higher in triple positive antiphospholipid antibody patients than in double and single positivity ones (p<0.0001 for all).
Conclusions:
APS/PT antibodies were associated to severe thrombosis, severe pregnancy complications inducing prematurity, and vascular microangiopathy, all generally associated to high risk APS forms requiring strong therapy.
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Abstract
The term "lupus anticoagulant" (LA) refers to a heterogeneous group of immunoglobulins behaving as acquired in vitro inhibitors of coagulation. These antibodies, namely anti-β2GPI and anti-prothrombin antibodies, induce the in vitro elongation of clotting time interfering with phospholipid-dependent coagulation cofactors. Positive LA is associated with thrombosis and pregnancy complications, providing one of the three laboratory criteria for the classification of the anti-phospholipid syndrome. LA is the strongest predictor of clinical events, especially when associated with other anti-phospholipid antibodies. Much more controversial is the risk conveyed by isolated and weak LA. LA detection is technically laborious, envisaging screening, mixing and confirming tests. Hopefully critical issues in LA detection, such as the interference of anticoagulants, will be overcome, in the next future.
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Affiliation(s)
- Cecilia Beatrice Chighizola
- a Department of Clinical Sciences and Community Health , University of Milan , Milan , Italy.,b Experimental Laboratory of Immunological and Rheumatologic Researches , Istituto Auxologico Italiano , Milan , Italy
| | - Elena Raschi
- b Experimental Laboratory of Immunological and Rheumatologic Researches , Istituto Auxologico Italiano , Milan , Italy
| | - Alessandra Banzato
- c Clinical Cardiology, Thrombosis Centre, Department of Cardiac Thoracic and Vascular Science , University of Padua , Padua , Italy
| | - Maria Orietta Borghi
- a Department of Clinical Sciences and Community Health , University of Milan , Milan , Italy.,b Experimental Laboratory of Immunological and Rheumatologic Researches , Istituto Auxologico Italiano , Milan , Italy
| | - Vittorio Pengo
- c Clinical Cardiology, Thrombosis Centre, Department of Cardiac Thoracic and Vascular Science , University of Padua , Padua , Italy
| | - Pier Luigi Meroni
- a Department of Clinical Sciences and Community Health , University of Milan , Milan , Italy.,b Experimental Laboratory of Immunological and Rheumatologic Researches , Istituto Auxologico Italiano , Milan , Italy.,d Department of Rheumatology , Istituto Ortopedico Gaetano Pini , Milan , Italy
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Peterson LK, Willis R, Harris EN, Branch WD, Tebo AE. Antibodies to Phosphatidylserine/Prothrombin Complex in Antiphospholipid Syndrome: Analytical and Clinical Perspectives. Adv Clin Chem 2016; 73:1-28. [PMID: 26975968 DOI: 10.1016/bs.acc.2015.10.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Antiphospholipid syndrome (APS) is an autoimmune disorder characterized by thrombosis and/or pregnancy-related morbidity accompanied by persistently positive antiphospholipid antibodies (aPL). Current laboratory criteria for APS classification recommend testing for lupus anticoagulant as well as IgG and IgM anticardiolipin, and beta-2 glycoprotein I (anti-β2GPI) antibodies. However, there appears to be a subset of patients with classical APS manifestations who test negative for the recommended criteria aPL tests. While acknowledging that such patients may have clinical features that are not of an autoimmune etiology, experts also speculate that these "seronegative" patients may test negative for relevant autoantibodies as a result of a lack of harmonization and/or standardization. Alternatively, they may have aPL that target other antigens involved in the pathogenesis of APS. In the latter, autoantibodies that recognize a phosphatidylserine/prothrombin (PS/PT) complex have been reported to be associated with APS and may have diagnostic relevance. This review highlights analytical and clinical attributes associated with PS/PT antibodies, taking into consideration the performance characteristics of criteria aPL tests in APS with specific recommendations for harmonization and standardization efforts.
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Affiliation(s)
- Lisa K Peterson
- Department of Pathology, University of Utah, Salt Lake City, Utah, USA
| | - Rohan Willis
- Rheumatology/Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | | | - Ware D Branch
- Maternal Fetal Medicine, University of Utah and Intermountain Healthcare, Salt Lake City, Utah, USA
| | - Anne E Tebo
- Department of Pathology, University of Utah, Salt Lake City, Utah, USA; ARUP Laboratories, Institute of Clinical and Experimental Pathology, Salt Lake City, Utah, USA.
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Zuily S, de Laat B, Mohamed S, Kelchtermans H, Shums Z, Albesa R, Norman GL, Lamboux-Matthieu C, Rat AC, Ninet J, Magy-Bertrand N, Pasquali JL, Lambert M, Lorcerie B, Kaminsky P, Guillemin F, Regnault V, Wahl D. Validity of the global anti-phospholipid syndrome score to predict thrombosis: a prospective multicentre cohort study. Rheumatology (Oxford) 2015; 54:2071-5. [PMID: 26163690 DOI: 10.1093/rheumatology/kev238] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To investigate the validity of the global APS score (GAPSS) to predict thrombosis in patients with autoimmune diseases. METHODS This prospective cohort study included consecutive patients with aPL or SLE. aPL, aPS-PT and GAPSS were determined. A Cox proportional hazards model assessed the validity of GAPSS and identified other potential independent predictors of thrombosis. RESULTS One hundred and thirty-seven patients [43.5 (s.d. 15.4) years old; 107 women] were followed up for a mean duration of 43.1 (s.d. 20.7) months. Mean GAPSS was significantly higher in patients who experienced a thrombotic event compared with those without [10.88 (s.d. 5.06) vs 8.15 (s.d. 5.31), respectively, P = 0.038]. In univariate analysis, age [hazard ratio (HR) = 1.04 (95% CI 1.01, 1.08)] and GAPSS above 16 [HR = 6.86 (95% CI 1.90, 24.77)] were each significantly associated with thrombosis during follow-up, while history of arterial thrombosis [HR = 2.61 (95% CI 0.87, 7.82)] failed to reach significance. Among aPL assays, IgG aPS/PT--a component of the GAPSS--was significantly associated with thrombosis [HR = 2.95 (95% CI 1.02, 8.51)]. In multivariate analysis, GAPSS above 16 remained the only significant predictor of thrombosis [HR = 6.17 (95% CI 1.70, 22.40)]. CONCLUSION This first external validation study confirmed that GAPSS can predict thrombosis in patients with aPL and associated autoimmune diseases.
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Affiliation(s)
- Stéphane Zuily
- CHU de Nancy, Regional Competence Centre for Rare Vascular and Systemic Autoimmune Diseases, Vascular Medicine Division, Inserm, UMRS 1116, Nancy School of Medicine, Université de Lorraine, Nancy, France,
| | - Bas de Laat
- Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Clinical Chemistry and Haematology, University Medical Centre Utrecht, Synapse BV, Maastricht, Department of Plasma Proteins/Blood coagulation, Sanquin Research, Amsterdam, The Netherlands
| | - Shirine Mohamed
- Nancy School of Medicine, Université de Lorraine, Nancy, France, CHU de Nancy, Orphan Disease Unit, Nancy, France
| | - Hilde Kelchtermans
- Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht
| | - Zakera Shums
- Research and Development, Inova Diagnostics, San Diego, CA, USA
| | - Roger Albesa
- Research and Development, Inova Diagnostics, San Diego, CA, USA
| | - Gary L Norman
- Research and Development, Inova Diagnostics, San Diego, CA, USA
| | - Claire Lamboux-Matthieu
- CHU de Nancy, Regional Competence Centre for Rare Vascular and Systemic Autoimmune Diseases, Vascular Medicine Division
| | - Anne-Christine Rat
- Université de Lorraine, Paris Descartes University, APEMAC, EA 4360, Inserm, CIC-EC 1433, CHU de Nancy, Clinical Epidemiology and Evaluation Department, CHU de Nancy, Rheumatology Department, Nancy
| | | | | | - Jean-Louis Pasquali
- CHU de Strasbourg, Internal Medicine and Clinical Immunology Department, Strasbourg, F-67000
| | - Marc Lambert
- CHRU de Lille, Department of Internal Medicine, Lille
| | - Bernard Lorcerie
- CHU de Dijon, Internal Medicine and Clinical Immunology Department, Dijon and
| | - Pierre Kaminsky
- Nancy School of Medicine, Université de Lorraine, Nancy, France, CHU de Nancy, Orphan Disease Unit, Nancy, France
| | - Francis Guillemin
- Université de Lorraine, Paris Descartes University, APEMAC, EA 4360, Inserm, CIC-EC 1433, CHU de Nancy, Clinical Epidemiology and Evaluation Department
| | | | - Denis Wahl
- CHU de Nancy, Regional Competence Centre for Rare Vascular and Systemic Autoimmune Diseases, Vascular Medicine Division, Inserm, UMRS 1116, Nancy School of Medicine, Université de Lorraine, Nancy, France
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Kawakami T, Yoon SY, Takeuchi S, Soma Y, Kuroha S, Yoshida S, Shida H, Nakazawa D, Tomaru U, Ishizu A. Novel monoclonal antibodies that recognize both rat and mouse phosphatidylserine/prothrombin complexes. Mod Rheumatol 2015; 26:470-1. [PMID: 26011442 DOI: 10.3109/14397595.2015.1054090] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Tamihiro Kawakami
- a Department of Dermatology , St. Marianna University School of Medicine , Kawasaki , Japan
| | - Sun Young Yoon
- a Department of Dermatology , St. Marianna University School of Medicine , Kawasaki , Japan
| | - Sora Takeuchi
- a Department of Dermatology , St. Marianna University School of Medicine , Kawasaki , Japan
| | - Yoshinao Soma
- a Department of Dermatology , St. Marianna University School of Medicine , Kawasaki , Japan
| | - Sayo Kuroha
- b Graduate School of Health Sciences, Hokkaido University , Sapporo , Japan
| | - Shigeru Yoshida
- c Faculty of Health Sciences, Hokkaido University , Sapporo , Japan
| | - Haruki Shida
- d Department of Internal Medicine II , Hokkaido University Graduate School of Medicine , Sapporo , Japan
| | - Daigo Nakazawa
- d Department of Internal Medicine II , Hokkaido University Graduate School of Medicine , Sapporo , Japan
| | - Utano Tomaru
- e Department of Pathology , Hokkaido University Graduate School of Medicine , Sapporo , Japan
| | - Akihiro Ishizu
- c Faculty of Health Sciences, Hokkaido University , Sapporo , Japan
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Heikal NM, Jaskowski TD, Malmberg E, Lakos G, Branch DW, Tebo AE. Laboratory evaluation of anti-phospholipid syndrome: a preliminary prospective study of phosphatidylserine/prothrombin antibodies in an at-risk patient cohort. Clin Exp Immunol 2015; 180:218-26. [PMID: 25522978 DOI: 10.1111/cei.12573] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2014] [Indexed: 01/31/2023] Open
Abstract
Immunoglobulin (Ig)G/IgM autoantibodies to phosphatidylserine/prothrombin (aPS/PT) were evaluated individually and in combination with criteria anti-phospholipid (aPL) tests in a prospectively ascertained cohort of patients at risk for anti-phospholipid syndrome (APS). One hundred and sixty (160) consecutive requests for lupus anti-coagulant (LAC) from the University of Utah Health Sciences Center were identified during 8 weeks. Of these, 104 unique patients had additional requests for cardiolipin (aCL) and/or beta2 glycoprotein I (aβ2 GPI) IgG and/or IgM; samples were retained and analysed for aPS/PT, aCL and/or aβ2 GPI IgG and IgM antibodies. Following testing, a comprehensive chart review was performed and patients categorized according to their clinical diagnosis. Individual and combined sensitivities, specificities, odd ratios (OR), diagnostic accuracy for specific tests or combinations by receiver operating characteristic (ROC), area under the curve (AUC) analyses and correlations between test results were determined. The sensitivities of aPS/PT IgG/IgM (54·6/45·5%) were lower than LAC (81·8%) but higher relative to aCL IgG/IgM (27·3/0%) or aβ2 GPI IgG/IgM (27·3/0%). The best correlation between LAC and any aPL test was observed with aPS/PT (P = 0·002). There was no significant difference in the diagnostic accuracies for any panel with LAC: LAC/aβ2 GPI IgG/aCL IgG [AUC 0·979, OR 475·4, 95% confidence interval (CI) 23·1-9056·5, P = 0·0001 and LAC/aβ2 GPI IgG/aPS/PT IgG or LAC/aPS/PT IgG/aCL IgG (AUC 0·962, OR 265·3, 14·2-4958·2, P = 0·0001). The high correlation between LAC and aPS/PT IgG/IgM in this preliminary study suggest that this marker may be useful in the evaluation of APS. More studies to determine the optimal aPL antibody tests combination are needed.
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Affiliation(s)
- N M Heikal
- Associated Regional and University Pathologists (ARUP) Institute for Clinical and Experimental Pathology, Salt Lake City, UT, USA; Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, USA
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Abstract
Antibodies to prothrombin can be detected by ELISA using prothrombin coated onto irradiated plates (aPT) or the phosphatidylserine/prothrombin complex as antigen (aPS/PT) and they have been both related with the clinical manifestation of APS. Current evidence supports the concept that they belong to distinct populations of autoantibodies. Nevertheless, they can both be detected simultaneously in one patient. This mini-review will focus on data available on aPS/PT antibodies and their clinical utility in the diagnosis of APS.
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Affiliation(s)
- S Sciascia
- Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women’s Health, King’s College London, UK
- Centro di Ricerche di Immunologia Clinica ed Immunopatologia e Documentazione su Malattie Rare (CMID), Università di Torino, Italy
| | - ML Bertolaccini
- Graham Hughes Lupus Research Laboratory, Lupus Research Unit, The Rayne Institute, Division of Women’s Health, King’s College London, UK
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Abstract
Bavituximab is a an unconjugated, chimeric immunoglobulin G1 (IgG1) monoclonal antibody directed against the phosphatidylserine (PS) expressed on tumor endothelium, with a specific mechanism of action. PS is an anionic membrane phospholipid, physiologically restricted to the internal membrane leaflet; various pathophysiologic processes cause the exposure of PS on the external membrane leaflet. Bavituximab, once bound, starts up host effector activities, such as antibody dependent cellular cytotoxicity, causing vessel destruction and enhancing antitumor immunity. Phase I clinical trials of bavituximab administered as monotherapy or in combination with other chemotherapeutic agents in adults with pretreated solid tumors have been accomplished, indicating that bavituximab can be safely dispensed weekly, with a recommended dose of 1 and 3 mg/kg. A Phase II randomized, placebo-controlled trial of bavituximab plus docetaxel, in the second-line therapy setting of locally advanced or metastatic non-small-cell lung cancer, has been conducted and recently presented, suggesting a clinical benefit of the combination, with an overall response rate of 17% and median overall survival of more than 11 months. A Phase III trial is currently ongoing. Bavituximab has been studied in combination with platinum-based doublets with promising results. In the present paper we summarize the preclinical development and clinical experience with bavituximab in non-small-cell lung cancer.
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Affiliation(s)
- Irene Stasi
- Medical Oncology Department, Istituto Toscano Tumori, Ospedale Civile, Livorno, Italy
| | - Federico Cappuzzo
- Medical Oncology Department, Istituto Toscano Tumori, Ospedale Civile, Livorno, Italy
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Fabris M, Giacomello R, Poz A, Pantarotto L, Tanzi N, Curcio F, Tonutti E. The introduction of anti-phosphatidylserine/prothrombin autoantibodies in the laboratory diagnostic process of anti-phospholipid antibody syndrome: 6 months of observation. Auto Immun Highlights 2014; 5:63-7. [PMID: 26000157 PMCID: PMC4389041 DOI: 10.1007/s13317-014-0061-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 07/07/2014] [Indexed: 11/26/2022]
Abstract
PURPOSE To evaluate the impact of the introduction of the anti-phosphatidylserine/prothrombin autoantibodies (aPS/PT) in the laboratory diagnostic process of anti-phospholipid antibody syndrome (APS). METHODS Four hundred and twenty-one patients (71.5 % females; 53 ± 15 years) presenting a medical prescription for aPS/PT antibodies were consecutively enrolled in the study from March 2013 to August 2013. During the same period, aPS/PT were additionally investigated in a selected series of 62 patients characterized by difficult lupus anticoagulant (LA) tests interpretation and in a retrospective series of 52 LA positive cases with available data about anti-prothrombin (aPT) antibodies. The aPS/PT antibodies, as well as the anti-cardiolipin (aCL), the anti-β2 glycoprotein I (aβ2GPI) and the aPT antibodies were analyzed by ELISA. LA was tested according to the recommended criteria, performing both the screen and the confirm steps. RESULTS Overall, aPS/PT IgM positive (>30 U/ml) and/or IgG frankly positive (>40 U/ml) antibodies were found in 49/421 (11.6 %) cases. Among the LA positive patients, we found 56.1 % aPS/PT positive versus 31.7 % aCL and/or aβ2GPI positive cases, with limited (17.1 %) simultaneous positivity. The PS/PT complex resulted the newly recognized specificity in about 27 % of patients recruited from the subset with difficult LA test interpretation. Compared to aPT antibodies, the aPS/PT antibodies displayed a much higher sensitivity (55.8 versus 15.4 %) in LA positive patients. CONCLUSIONS The introduction of aPS/PT antibodies in the diagnostic process of APS is highly recommended, since they disclose a notable diagnostic performance and a high correlation with LA activity, such that they can be a viable alternative.
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Affiliation(s)
- Martina Fabris
- Department of Laboratory Medicine, Institute of Clinical Pathology, University Hospital of Udine, Piazzale S. Maria Misericordia, 15, 33100 Udine, Italy
- Department of Medical and Biological Sciences, University of Udine, Udine, Italy
| | - Roberta Giacomello
- Department of Laboratory Medicine, Institute of Clinical Pathology, University Hospital of Udine, Piazzale S. Maria Misericordia, 15, 33100 Udine, Italy
- Department of Medical and Biological Sciences, University of Udine, Udine, Italy
| | - Alessandra Poz
- Department of Medical and Biological Sciences, University of Udine, Udine, Italy
| | - Lisa Pantarotto
- Immunepathology and Allergy, Department of Laboratory Medicine, University Hospital of Udine, Udine, Italy
| | - Nicolanna Tanzi
- Department of Medical and Biological Sciences, University of Udine, Udine, Italy
| | - Francesco Curcio
- Department of Laboratory Medicine, Institute of Clinical Pathology, University Hospital of Udine, Piazzale S. Maria Misericordia, 15, 33100 Udine, Italy
- Department of Medical and Biological Sciences, University of Udine, Udine, Italy
| | - Elio Tonutti
- Immunepathology and Allergy, Department of Laboratory Medicine, University Hospital of Udine, Udine, Italy
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Bertolaccini ML, Amengual O, Andreoli L, Atsumi T, Chighizola CB, Forastiero R, de Groot P, Lakos G, Lambert M, Meroni P, Ortel TL, Petri M, Rahman A, Roubey R, Sciascia S, Snyder M, Tebo AE, Tincani A, Willis R. 14th International Congress on Antiphospholipid Antibodies Task Force. Report on antiphospholipid syndrome laboratory diagnostics and trends. Autoimmun Rev 2014; 13:917-30. [PMID: 24824074 DOI: 10.1016/j.autrev.2014.05.001] [Citation(s) in RCA: 196] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 04/30/2014] [Indexed: 12/24/2022]
Abstract
Current classification criteria for definite Antiphospholipid Syndrome (APS) require the use of three laboratory assays to detect antiphospholipid antibodies (aCL, anti-β2GPI and LA) in the presence of at least one of the two major clinical manifestations (i.e. thrombosis or pregnancy morbidity) of the syndrome. However, several other autoantibodies shown to be directed to other proteins or their complex with phospholipids have been proposed to be relevant to APS but their clinical utility and their diagnostic value remains elusive. This report summarizes the findings, conclusions and recommendations of the "APS Task Force 3-Laboratory Diagnostics and Trends" meeting that took place during the 14th International Congress on Antiphospholipid Antibodies (APLA 2013, September 18-21, Rio de Janeiro, RJ, Brazil).
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Lis-Święty A, Brzezińska-Wcisło L, Arasiewicz H, Bergler-Czop B. Antiphospholipid antibodies in localized scleroderma: the potential role of screening tests for the detection of antiphospholipid syndrome. Postepy Dermatol Alergol 2014; 31:65-70. [PMID: 25097470 DOI: 10.5114/pdia.2014.40978] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 12/17/2013] [Accepted: 01/25/2014] [Indexed: 11/17/2022] Open
Abstract
Introduction The presence of antiphospholipid antibodies (aPL) is associated with infections, drugs and autoimmune disorders. Those antibodies are also detected in approximately 5–20% of the healthy population. The presence of aPL can lead to the occurrence of thrombotic events or abortion, which define the antiphospholipid syndrome (APS). Aim To evaluate the potential role of aPL in diagnosing APS in patients with localized scleroderma (LoS). Material and methods Serum samples from 45 patients with various forms of LoS were examined. They were screened with the commercially-available immunodot assay Anti-Phospholipid 10 Dot (GA Generic Assays GmbH, Dahlewitz, Germany). A number of clinical and laboratory parameters, especially APS symptoms, were assessed in patients with positive aPL: arterial and venous thrombotic events, obstetric complications, thrombocytopenia and neurological symptoms. Results The following profile of aPL IgG or IgM was obtained from patients with LoS: cardiolipin 15/45, phosphatidic acid 41/45, phosphatidyl-choline 0/45, -ethanolamine 6/45, -glycerole 1/45 (patient with Lyme disease), -inositol 7/45, -serine 14/45, annexin V 34/45, β2GPI 21/45, prothrombin 30/45. Antiphospholipid antibodies profile screening in these individuals revealed two cases of suspected secondary laboratory APS. However, no such clinical and laboratory parameters were found in other LoS patients with positive aPL. Similarly, no association was found between the presence of aPL and either thrombotic events or other APS symptoms. Conclusions Antiphospholipid antibodies are commonly found in patients with LoS but the exact role of these antibodies remains unclear. Clinical manifestations of APS are not frequently seen during LoS.
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Amengual O, Horita T, Binder W, Norman GL, Shums Z, Kato M, Otomo K, Fujieda Y, Oku K, Bohgaki T, Yasuda S, Atsumi T. Comparative analysis of different enzyme immunoassays for assessment of phosphatidylserine-dependent antiprothrombin antibodies. Rheumatol Int 2014; 34:1225-30. [DOI: 10.1007/s00296-014-2951-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 01/22/2014] [Indexed: 03/06/2023]
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Meroni PL, Chighizola CB, Rovelli F, Gerosa M. Antiphospholipid syndrome in 2014: more clinical manifestations, novel pathogenic players and emerging biomarkers. Arthritis Res Ther 2014; 16:209. [PMID: 25166960 PMCID: PMC4060447 DOI: 10.1186/ar4549] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The clinical spectrum of the anti-phospholipid syndrome (APS) is not limited to vascular thrombosis or miscarriages but includes additional manifestations that cannot be explained solely by a thrombophilic state. Anti-cardiolipin, anti-beta₂ glycoprotein I (anti-β₂GPI) and lupus anticoagulant (LA) assays are not only the formal diagnostic and classification laboratory tools but also parameters to stratify the risk to develop the clinical manifestations of the syndrome. In particular, anti-β₂GPI antibodies reacting with an immunodominant epitope on domain I of the molecule were reported as the prevalent specificity in APS patients, correlating with a more aggressive clinical picture. Several laboratory assays to improve the diagnostic and predictive power of the standard tests have been proposed. Plates coated with the phosphatidylserine-prothrombin complex for detecting antibodies represent a promising laboratory tool correlating with LA and with clinical manifestations. Anti-phospholipid antibodies can be found in patients with full-blown APS, in those with thrombotic events or obstetric complications only or in asymptomatic carriers. An inflammatory second hit is required to increase the presence of β₂GPI in vascular tissues, eventually triggering thrombosis. Post-transcriptional modifications of circulating β₂GPI, different epitope specificities or diverse anti-β₂GPI antibody-induced cell signaling have all been suggested to affect the clinical manifestations and/or to modulate their occurrence.
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Affiliation(s)
- Pier Luigi Meroni
- Division of Rheumatology - Istituto Ortopedico Gaetano Pini, Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
- Istituto Auxologico Italiano, via Zucchi 18, 20095 Cusano Milanino, Mi, Italy
| | - Cecilia Beatrice Chighizola
- Division of Rheumatology - Istituto Ortopedico Gaetano Pini, Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
- Istituto Auxologico Italiano, via Zucchi 18, 20095 Cusano Milanino, Mi, Italy
| | - Francesca Rovelli
- Division of Rheumatology - Istituto Ortopedico Gaetano Pini, Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Maria Gerosa
- Division of Rheumatology - Istituto Ortopedico Gaetano Pini, Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
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Colafrancesco S, Agmon-levin N, Perricone C, Shoenfeld Y. Unraveling the soul of autoimmune diseases: pathogenesis, diagnosis and treatment adding dowels to the puzzle. Immunol Res 2013; 56:200-5. [DOI: 10.1007/s12026-013-8429-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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