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Thromb Haemost 2020; 120(04): 592-598
DOI: 10.1055/s-0040-1705115
Coagulation and Fibrinolysis
Georg Thieme Verlag KG Stuttgart · New York

Antiphosphatidylserine/Prothrombin Antibodies: An Update on Their Association with Clinical Manifestations of Antiphospholipid Syndrome

Massimo Radin
1   Center of Research of Immunopathology and Rare Diseases-Coordinating Center of Piemonte and Valle d'Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, and SCDU Nephrology and Dialysis, S. Giovanni Bosco Hospital, Turin, Italy
,
Silvia G. Foddai
1   Center of Research of Immunopathology and Rare Diseases-Coordinating Center of Piemonte and Valle d'Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, and SCDU Nephrology and Dialysis, S. Giovanni Bosco Hospital, Turin, Italy
,
Irene Cecchi
1   Center of Research of Immunopathology and Rare Diseases-Coordinating Center of Piemonte and Valle d'Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, and SCDU Nephrology and Dialysis, S. Giovanni Bosco Hospital, Turin, Italy
,
Elena Rubini
1   Center of Research of Immunopathology and Rare Diseases-Coordinating Center of Piemonte and Valle d'Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, and SCDU Nephrology and Dialysis, S. Giovanni Bosco Hospital, Turin, Italy
,
Karen Schreiber
3   Department of Thrombosis and Haemophilia, Guy's and St Thomas' Hospital, London, United Kingdom
4   Department of Rheumatology, Copenhagen University Hospital, Copenhagen, Denmark
,
Dario Roccatello
1   Center of Research of Immunopathology and Rare Diseases-Coordinating Center of Piemonte and Valle d'Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, and SCDU Nephrology and Dialysis, S. Giovanni Bosco Hospital, Turin, Italy
,
Maria Laura Bertolaccini
2   Academic Department of Vascular Surgery, School of Cardiovascular Sciences and Medicine, King's College London, United Kingdom
,
Savino Sciascia
1   Center of Research of Immunopathology and Rare Diseases-Coordinating Center of Piemonte and Valle d'Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, and SCDU Nephrology and Dialysis, S. Giovanni Bosco Hospital, Turin, Italy
› Author Affiliations Funding M.L.B. is funded by the King’s BHF Centre for Award Excellence RE/18/2/34213; M.R. is funded by a grant from the Italian Ministry of Health SG-2018-12368028.
Further Information

Publication History

30 October 2019

15 January 2020

Publication Date:
17 March 2020 (online)

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Abstract

Objective The aim of the study is to perform a systematic review on the recent available evidence on antiphosphatidylserine/prothrombin (aPS/PT) antibodies and their association with clinical manifestations of the antiphospholipid syndrome (APS).

Methods A detailed literature search was applied a priori to Ovid MEDLINE, In-Process and Other Non-Indexed Citation 2012 to present and to abstract from EULAR and ACR/ARHP Annual Meetings (2012–2019).

Results Data from 2,901 patients, 587 diseases controls and 559 healthy controls included in 15 retrieved studies was analyzed. The patient population included 1,219 patients classified as APS according to the Sidney criteria, 285 patients with isolated persistently positive antiphospholipid antibodies (aPL) and 1,397 patients with a clinical suspicion of APS. Twelve studies, including 1,888 patients, analyzed the association between aPS/PT antibodies and thrombosis. We observed a statistically significant association between aPS/PT IgG/IgM positivity and thrombotic events (mean odds ratio [OR]: 6.8 [95% CI: 3.18–16.4], p < 0.05), confirmed when analyzing aPS/PT IgG (mean OR: 6.7 [95% CI: 3.04–21.6], p < 0.05) and aPS/PT IgM (mean OR: 4.35 [95% CI: 1.54–17.77], p < 0.05) separately. Seven studies, including 1,388 patients, evaluated the association between aPS/PT antibodies and PM. When pooled together, we found a statistically significant association between any PM and aPS/PT IgG/IgM positivity (mean OR: 10.6 [95% CI: 3.54–35.38], p < 0.05), particularly aPS/PT IgG positivity (mean OR: 6.7 [95% CI: 3.04–21.6], p < 0.05).

Conclusion Our results highlight the strong association between aPS/PT and the clinical manifestations of APS. With the available level of evidence, aPS/PT testing can be considered as a robust test applicable in the investigation of patients suspected for APS, also beyond the research settings.

Keywords

antiphospholipid syndrome - antiphospholipid antibodies - antiphosphatidylserine - antiphosphatidylserine/prothrombin - non criteria aPL - thrombosis - autoimmunity

Authors' Contributions

R.M., S.G.F., C.I., R.E., and S.K. searched the literature, assisted with the organization of the manuscript, interpreted and collected data, and wrote and edited the systematic review. R.M., S.S., R.D., and M.L.B. interpreted and collected data, helped to design the figures and panel, and wrote and edited the systematic review.


 

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