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Hu J, Chen L, Ruan J, Chen X. The role of the annexin A protein family at the maternal-fetal interface. Front Endocrinol (Lausanne) 2024; 15:1314214. [PMID: 38495790 PMCID: PMC10940358 DOI: 10.3389/fendo.2024.1314214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 02/09/2024] [Indexed: 03/19/2024] Open
Abstract
Successful pregnancy requires the tolerance of the maternal immune system for the semi-allogeneic embryo, as well as a synchrony between the receptive endometrium and the competent embryo. The annexin family belongs to calcium-regulated phospholipid-binding protein, which functions as a membrane skeleton to stabilize the lipid bilayer and participate in various biological processes in humans. There is an abundance of the annexin family at the maternal-fetal interface, and it exerts a crucial role in embryo implantation and the subsequent development of the placenta. Altered expression of the annexin family and dysfunction of annexin proteins or polymorphisms of the ANXA gene are involved in a range of pregnancy complications. In this review, we summarize the current knowledge of the annexin A protein family at the maternal-fetal interface and its association with female reproductive disorders, suggesting the use of ANXA as the potential therapeutic target in the clinical diagnosis and treatment of pregnancy complications.
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Affiliation(s)
- Jingwen Hu
- Maternal-Fetal Medicine Institute, Department of Obstetrics and Gynaecology, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen University, Shenzhen, China
| | - Lin Chen
- Fertility Preservation Research Center, Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Jing Ruan
- Maternal-Fetal Medicine Institute, Department of Obstetrics and Gynaecology, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen University, Shenzhen, China
| | - Xiaoyan Chen
- Maternal-Fetal Medicine Institute, Department of Obstetrics and Gynaecology, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen University, Shenzhen, China
- Fertility Preservation Research Center, Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
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Jing J. The Relevance, Predictability, and Utility of Annexin A5 for Human Physiopathology. Int J Mol Sci 2024; 25:2865. [PMID: 38474114 PMCID: PMC10932194 DOI: 10.3390/ijms25052865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
As an important functional protein molecule in the human body, human annexin A5 (hAnxA5) is widely found in human cells and body fluids. hAnxA5, the smallest type of annexin, performs a variety of biological functions by reversibly and specifically binding phosphatidylserine (PS) in a calcium-dependent manner and plays an important role in many human physiological and pathological processes. The free state hAnxA5 exists in the form of monomers and usually forms a polymer in a specific self-assembly manner when exerting biological activity. This review systematically discusses the current knowledge and understanding of hAnxA5 from three perspectives: physiopathological relevance, diagnostic value, and therapeutic utility. hAnxA5 affects the occurrence and development of many physiopathological processes. Moreover, hAnxA5 can be used independently or in combination as a biomarker of physiopathological phenomena for the diagnosis of certain diseases. Importantly, based on the properties of hAnxA5, many novel drug candidates have been designed and prepared for application in actual medical practice. However, there are also some gaps and shortcomings in hAnxA5 research. This in-depth study will not only expand the understanding of structural and functional relationships but also promote the application of hAnxA5 in the field of biomedicine.
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Affiliation(s)
- Jian Jing
- Beijing Key Laboratory of Biotechnology and Genetic Engineering, College of Life Sciences, Beijing Normal University, Beijing 100875, China
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Andreoli L, Regola F, Caproli A, Crisafulli F, Fredi M, Lazzaroni MG, Nalli C, Piantoni S, Zatti S, Franceschini F, Tincani A. Pregnancy in antiphospholipid syndrome: what should a rheumatologist know? Rheumatology (Oxford) 2024; 63:SI86-SI95. [PMID: 38320595 DOI: 10.1093/rheumatology/kead537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/03/2023] [Indexed: 02/08/2024] Open
Abstract
This review focuses on the management of reproductive issues in women who have antiphospholipid syndrome (APS) or are carriers of antiphospholipid antibodies (aPL). The importance of aPL detection during preconception counselling relies on their pathogenic potential for placental insufficiency and related obstetric complications. The risk of adverse pregnancy outcomes can be minimized by individualized risk stratification and tailored treatment aimed at preventing placental insufficiency. Combination therapy of low-dose acetylsalicylic acid and heparin is the mainstay of prophylaxis during pregnancy; immunomodulation, especially with hydroxychloroquine, should be considered in refractory cases. Supplementary ultrasound surveillance is useful to detect fetal growth restriction and correctly tailor the time of delivery. The individual aPL profile must be considered in the stratification of thrombotic risk, such as during assisted reproduction techniques requiring hormonal ovarian stimulation or during the follow-up after pregnancy in order to prevent the first vascular event.
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Affiliation(s)
- Laura Andreoli
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Francesca Regola
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Alessia Caproli
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Francesca Crisafulli
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Micaela Fredi
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Maria-Grazia Lazzaroni
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Cecilia Nalli
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Silvia Piantoni
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Sonia Zatti
- Department of Obstetrics and Gynaecology, ASST Spedali Civili, Brescia, Italy
| | - Franco Franceschini
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Angela Tincani
- Rheumatology and Clinical Immunology Unit - ERN ReCONNET, ASST Spedali Civili; Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
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Bitsadze V, Yakubova F, Khizroeva J, Lazarchuk A, Salnikova P, Vorobev A, Tretyakova M, Degtyareva N, Grigoreva K, Gashimova N, Kvaratskheliia M, Makatsariya N, Kudryavtseva E, Tomlenova A, Gris JC, Elalamy I, Ay C, Makatsariya A. Catastrophic Antiphospholipid Syndrome. Int J Mol Sci 2024; 25:668. [PMID: 38203837 PMCID: PMC10779422 DOI: 10.3390/ijms25010668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/26/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Unlike classic APS, CAPS causes multiple microthrombosis due to an increased inflammatory response, known as a "thrombotic storm". CAPS typically develops after infection, trauma, or surgery and begins with the following symptoms: fever, thrombocytopenia, muscle weakness, visual and cognitive disturbances, abdominal pain, renal failure, and disseminated intravascular coagulation. Although the presence of antiphospholipid antibodies in the blood is one of the diagnostic criteria, the level of these antibodies can fluctuate significantly, which complicates the diagnostic process and can lead to erroneous interpretation of rapidly developing symptoms. Triple therapy is often used to treat CAPS, which includes the use of anticoagulants, plasmapheresis, and high doses of glucocorticosteroids and, in some cases, additional intravenous immunoglobulins. The use of LMWH is recommended as the drug of choice due to its anti-inflammatory and anticoagulant properties. CAPS is a multifactorial disease that requires not only an interdisciplinary approach but also highly qualified medical care, adequate and timely diagnosis, and appropriate prevention in the context of relapse or occurrence of the disease. Improved new clinical protocols and education of medical personnel regarding CAPS can significantly improve the therapeutic approach and reduce mortality rates.
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Affiliation(s)
- Victoria Bitsadze
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Fidan Yakubova
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Jamilya Khizroeva
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Arina Lazarchuk
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Polina Salnikova
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Alexander Vorobev
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Maria Tretyakova
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Natalia Degtyareva
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Kristina Grigoreva
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Nilufar Gashimova
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Margaret Kvaratskheliia
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Nataliya Makatsariya
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Ekaterina Kudryavtseva
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Anna Tomlenova
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
| | - Jean-Christophe Gris
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
- Faculty of Pharmaceutical and Biological Sciences, Montpellier University, 34093 Montpellier, France
| | - Ismail Elalamy
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
- Department Hematology and Thrombosis Center, Medicine Sorbonne University, 75012 Paris, France
- Hospital Tenon, 4 Rue de la Chine, 75020 Paris, France
| | - Cihan Ay
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
- Department of Medicine I, Clinical Division of Hematology and Hemostaseology, Medical University of Vienna, 1080 Vienna, Austria
| | - Alexander Makatsariya
- Department of Obstetrics, Gynecology and Perinatal Medicine, N. F. Filatov Clinical Institute of Children’s Health, I. M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Str. 8-2, 119991 Moscow, Russia; (F.Y.); (J.K.); (A.L.); (P.S.); (A.V.); (M.T.); (N.D.); (K.G.); (N.G.); (M.K.); (N.M.); (E.K.); (A.T.); (J.-C.G.); (I.E.); (C.A.)
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Serag WM, Eysa BE. Diagnosis of portal vein thrombosis in cirrhotic patients with and without hepatocellular carcinoma. EGYPTIAN LIVER JOURNAL 2022. [DOI: 10.1186/s43066-022-00201-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The levels of Annexin A5 (Annexin V) were measured in patients with and without HCC who had liver cirrhosis. These patients were followed for 12 months to determine the incidence of PVT and to determine the role of Annexin V in the diagnosis of PVT. Our goal was to look at the value of Annexin A5, platelet count, spleen size, portal flow velocity, portal vein width, Fibrosis 4, and APRI score in these individuals to see if they might be used as PVT markers.
Methods
Between March 2017 and August 2018, ninety-one HCV patients with cirrhosis with and without HCC, as well as a control group of twenty healthy people, were included in this longitudinal study at the NHTMRI. The blood anxA5 level was determined using a commercial Hyphen BioMed immunoassay using Stat Fax 4700’s Microstrip Reader l.
Results
Cirrhotic patients with and without HCC who developed PVT had higher Annexin A5 scales (5.75 + 0.18), compared to cirrhotic patients who did not develop PVT (3.63 + 1.08 (P 0.001). PVT was 20% in all cirrhotic patients after a year, 15% in cirrhotic patients without HCC, and 25% in cirrhotic patients with HCC. Cirrhotic patients who had PVT throughout the follow-up period had greater AnxA5 serum levels than cirrhotic patients who did not develop PVT.
Conclusions
In all cirrhotic patients, AnxA5 level, platelet count, spleen size, portal flow velocity, portal vein diameter, and Fibrosis 4 score might be employed as markers for PVT development.
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Hubben A, McCrae KR. Emerging Therapies in Antiphospholipid Syndrome. Transfus Med Rev 2022; 36:195-203. [PMID: 36272841 PMCID: PMC10162403 DOI: 10.1016/j.tmrv.2022.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/15/2022]
Abstract
The antiphospholipid syndrome (APS) is the most common cause of acquired immune-mediated thrombophilia. This syndrome is broadly defined by the presence of arterial or venous thrombosis, or pregnancy morbidity, in the presence of high levels of antiphospholipid antibodies. Despite recognition of this disorder more than 50 years ago, a fundamental unifying pathogenesis has not been determined. Due to this, mechanism-based therapies for APS are not available, and current management following thrombotic events suggests anticoagulation of indeterminate duration, or for obstetric complications, heparin/low molecular weight heparin and aspirin. However, APS is an autoimmune disorder, and several approaches focused on modulating the immune response or its effectors have been employed. Those which have been most extensively studied include hydroxychloroquine, rituximab and eculizumab, an inhibitor of complement C5. In this report, we review in depth, and critique, key clinical studies of these agents. Since all of these studies are small, our conclusions are qualified. However, it appears that hydroxychloroquine may enhance the anticoagulant efficacy of vitamin K antagonists in APS patients, and that rituximab may ameliorate some of the "non-criteria" manifestations of APS. The catastrophic antiphospholipid syndrome (CAPS) is associated with diffuse thrombosis, multi-organ dysfunction, and ∼30% mortality. A high incidence of complement regulatory gene mutations, and compelling data concerning the efficacy of eculizumab in CAPS, suggests an important role for complement in this disorder. However, additional work is needed to clarify the role of complement in non-catastrophic APS, though emerging data suggests that complement inhibition may be effective in preventing thrombosis in these patients as well.
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Affiliation(s)
- Anne Hubben
- Department of Cardiovascular and Metabolic Sciences, Taussig Cancer Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Keith R McCrae
- Department of Cardiovascular and Metabolic Sciences, Taussig Cancer Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.
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Alijotas-Reig J, Esteve-Valverde E, Anunciación-Llunell A, Marques-Soares J, Pardos-Gea J, Miró-Mur F. Pathogenesis, Diagnosis and Management of Obstetric Antiphospholipid Syndrome: A Comprehensive Review. J Clin Med 2022; 11:675. [PMID: 35160128 PMCID: PMC8836886 DOI: 10.3390/jcm11030675] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/18/2022] [Accepted: 01/25/2022] [Indexed: 02/04/2023] Open
Abstract
Antiphospholipid syndrome is an autoimmune disorder characterized by vascular thrombosis and/or pregnancy morbidity associated with persistent antiphospholipid antibody positivity. Cases fulfilling the Sydney criteria for obstetric morbidity with no previous thrombosis are known as obstetric antiphospholipid syndrome (OAPS). OAPS is the most identified cause of recurrent pregnancy loss and late-pregnancy morbidity related to placental injury. Cases with incomplete clinical or laboratory data are classified as obstetric morbidity APS (OMAPS) and non-criteria OAPS (NC-OAPS), respectively. Inflammatory and thrombotic mechanisms are involved in the pathophysiology of OAPS. Trophoblasts, endothelium, platelets and innate immune cells are key cellular players. Complement activation plays a crucial pathogenic role. Secondary placental thrombosis appears by clot formation in response to tissue factor activation. New risk assessment tools could improve the prediction of obstetric complication recurrences or thromboses. The standard-of-care treatment consists of low-dose aspirin and prophylactic low molecular weight heparin. In refractory cases, the addition of hydroxychloroquine, low-dose prednisone or IVIG improve pregnancy outcomes. Statins and eculizumab are currently being tested for treating selected OAPS women. Finally, we revisited recent insights and concerns about the pathophysiology, diagnosis and management of OAPS.
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Affiliation(s)
- Jaume Alijotas-Reig
- Systemic Autoimmune Diseases Research Unit, Vall d’Hebron Hospital Campus, Vall d’Hebron Institut de Recerca (VHIR), Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.A.-L.); (J.M.-S.); (J.P.-G.)
- Systemic Autoimmune Diseases Unit, Department of Internal Medicine, Vall d’Hebron Hospital Campus, Hospital Universitari Vall d’Hebron (HUVH), Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain
- Department of Medicine, Faculty of Medicine, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain
| | - Enrique Esteve-Valverde
- Department of Internal Medicine, Althaia Xarxa Assistencial, Carrer Dr Joan Soler 1-3, 08243 Manresa, Spain;
| | - Ariadna Anunciación-Llunell
- Systemic Autoimmune Diseases Research Unit, Vall d’Hebron Hospital Campus, Vall d’Hebron Institut de Recerca (VHIR), Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.A.-L.); (J.M.-S.); (J.P.-G.)
| | - Joana Marques-Soares
- Systemic Autoimmune Diseases Research Unit, Vall d’Hebron Hospital Campus, Vall d’Hebron Institut de Recerca (VHIR), Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.A.-L.); (J.M.-S.); (J.P.-G.)
- Systemic Autoimmune Diseases Unit, Department of Internal Medicine, Vall d’Hebron Hospital Campus, Hospital Universitari Vall d’Hebron (HUVH), Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain
| | - Josep Pardos-Gea
- Systemic Autoimmune Diseases Research Unit, Vall d’Hebron Hospital Campus, Vall d’Hebron Institut de Recerca (VHIR), Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.A.-L.); (J.M.-S.); (J.P.-G.)
- Systemic Autoimmune Diseases Unit, Department of Internal Medicine, Vall d’Hebron Hospital Campus, Hospital Universitari Vall d’Hebron (HUVH), Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain
| | - Francesc Miró-Mur
- Systemic Autoimmune Diseases Research Unit, Vall d’Hebron Hospital Campus, Vall d’Hebron Institut de Recerca (VHIR), Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.A.-L.); (J.M.-S.); (J.P.-G.)
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Gerde M, Ibarra E, Mac Kenzie R, Fernandez Suarez C, Heer C, Alvarez R, Iglesias M, Balparda J, Beruti E, Rubinstein F. The impact of hydroxychloroquine on obstetric outcomes in refractory obstetric antiphospholipid syndrome. Thromb Res 2021; 206:104-110. [PMID: 34454240 DOI: 10.1016/j.thromres.2021.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 08/06/2021] [Accepted: 08/06/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND The use of low-dose aspirin (LDA) and heparin has improved pregnancy outcomes in women with antiphospholipid syndrome (APS). However, 20-30% still have adverse outcomes despite treatment. Recent retrospective studies showed a beneficial effect of hydroxychloroquine (HCQ) in APS due to its anti-inflammatory, immunomodulatory and antithrombotic properties. Data in refractory obstetric APS (OAPS) remain scarce and include heterogeneous populations with various concomitant treatments. OBJECTIVE The objective of this study was to assess the impact on the obstetric outcomes of adding HCQ to classical treatments for women with refractory primary obstetric APS. METHODS In a retrospective single-centre cohort study, we compared pregnancy outcomes in women with refractory primary OAPS (2004-2019) who received two different treatments in subsequent pregnancies. Group A received 400 mg HCQ + 60 mg enoxaparin + LDA, while Group B received 60 mg enoxaparin + LDA. The main outcome was live birth rates, while pregnancy complications (early and late pregnancy losses and placental-mediated complications) were the secondary outcome. RESULTS A total of 101 pregnancies in 87 refractory primary OAPS patients were included. The rate of live-born babies in Group A (HCQ) was 97.1% (67/69) vs. 62.5% (20/32) in Group B (RR: 1.55 [95% CI, 1.19-2.1]; p < 0.001). Pregnancy complications in Group A were 8.7% (6/69) vs. 37.5% (12/32) in Group B (RR 0.22 [95% CI, 0.15-0.30]; p < 0.001). CONCLUSION Hydroxychloroquine was associated with a higher rate of live births and a lower prevalence of pregnancy complications in refractory primary obstetric APS. The addition of HCQ to classical treatment may present a promising approach that needs to be confirmed with prospective studies.
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Affiliation(s)
- M Gerde
- Department of Obstetrics and Gynecology, Hospital Universitario Austral, Av., Juan Domingo Perón 1500, Pilar Centro, Provincia de Buenos Aires, Argentina.
| | - E Ibarra
- Department of Obstetrics and Gynecology, Hospital Universitario Austral, Av., Juan Domingo Perón 1500, Pilar Centro, Provincia de Buenos Aires, Argentina
| | - R Mac Kenzie
- Division of Vascular Surgery and Phlebology, FLENI, Montañeses 2325, Ciudad de Buenos Aires, Argentina
| | - C Fernandez Suarez
- Department of Obstetrics and Gynecology, Hospital Universitario Austral, Av., Juan Domingo Perón 1500, Pilar Centro, Provincia de Buenos Aires, Argentina
| | - C Heer
- Department of Obstetrics and Gynecology, Hospital Universitario Austral, Av., Juan Domingo Perón 1500, Pilar Centro, Provincia de Buenos Aires, Argentina
| | - R Alvarez
- Department of Obstetrics and Gynecology, Hospital Universitario Austral, Av., Juan Domingo Perón 1500, Pilar Centro, Provincia de Buenos Aires, Argentina
| | - M Iglesias
- Department of Obstetrics and Gynecology, Hospital Universitario Austral, Av., Juan Domingo Perón 1500, Pilar Centro, Provincia de Buenos Aires, Argentina
| | - J Balparda
- Department of Obstetrics and Gynecology, Hospital Universitario Austral, Av., Juan Domingo Perón 1500, Pilar Centro, Provincia de Buenos Aires, Argentina.
| | - E Beruti
- Department of Obstetrics and Gynecology, Hospital Universitario Austral, Av., Juan Domingo Perón 1500, Pilar Centro, Provincia de Buenos Aires, Argentina.
| | - F Rubinstein
- Departamento de Educación, Instituto de Efectividad Clínica y Sanitaria (IECS), Dr. Emilio Ravignani 2024, Ciudad de Buenos Aires, Argentina
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Autoimmunity to Annexin A2 predicts mortality among hospitalised COVID-19 patients. Eur Respir J 2021; 58:13993003.00918-2021. [PMID: 34244321 PMCID: PMC8859972 DOI: 10.1183/13993003.00918-2021] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 06/24/2021] [Indexed: 02/07/2023]
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Leal Rato M, Bandeira M, Romão VC, Aguiar de Sousa D. Neurologic Manifestations of the Antiphospholipid Syndrome - an Update. Curr Neurol Neurosci Rep 2021; 21:41. [PMID: 34125304 PMCID: PMC8200381 DOI: 10.1007/s11910-021-01124-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2021] [Indexed: 12/21/2022]
Abstract
PURPOSE OF REVIEW In recent years, the spectrum of neurological manifestations of antiphospholipid syndrome (APS) has been growing. We provide a critical review of the literature with special emphasis on presentation, proposed mechanisms of disease, and treatment of neurological involvement in APS. RECENT FINDINGS Although stroke is the most common cause of neurological manifestations in patients with APS, other neurological disorders have been increasingly associated with the disease, including cognitive dysfunction, headache, and epilepsy. Direct oral anticoagulants have failed to show non-inferiority compared to vitamin K antagonists for the prevention of major thrombotic events. Antiphospholipid antibodies are often found in patients with acute COVID-19 but clear evidence supporting an association between these antibodies and the risk of thrombotic events, including stroke and cerebral venous thrombosis, is still lacking. APS patients may present with several distinct neurological manifestations. New criteria will facilitate the classification of patients presenting with increasingly recognized non-criteria neurological manifestations.
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Affiliation(s)
- Miguel Leal Rato
- Neurology, Department of Neurosciences and Mental Health, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Av. Prof. Egas Moniz, 1649-028, Lisbon, Portugal
- Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Matilde Bandeira
- Rheumatology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
- Rheumatology Research Unit, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Vasco C Romão
- Rheumatology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
- Rheumatology Research Unit, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Diana Aguiar de Sousa
- Neurology, Department of Neurosciences and Mental Health, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Av. Prof. Egas Moniz, 1649-028, Lisbon, Portugal.
- Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
- Instituto de Medicina Molecular João Lobo Antunes, Lisbon, Portugal.
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12
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Grewal T, Rentero C, Enrich C, Wahba M, Raabe CA, Rescher U. Annexin Animal Models-From Fundamental Principles to Translational Research. Int J Mol Sci 2021; 22:ijms22073439. [PMID: 33810523 PMCID: PMC8037771 DOI: 10.3390/ijms22073439] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/18/2021] [Accepted: 03/24/2021] [Indexed: 02/07/2023] Open
Abstract
Routine manipulation of the mouse genome has become a landmark in biomedical research. Traits that are only associated with advanced developmental stages can now be investigated within a living organism, and the in vivo analysis of corresponding phenotypes and functions advances the translation into the clinical setting. The annexins, a family of closely related calcium (Ca2+)- and lipid-binding proteins, are found at various intra- and extracellular locations, and interact with a broad range of membrane lipids and proteins. Their impacts on cellular functions has been extensively assessed in vitro, yet annexin-deficient mouse models generally develop normally and do not display obvious phenotypes. Only in recent years, studies examining genetically modified annexin mouse models which were exposed to stress conditions mimicking human disease often revealed striking phenotypes. This review is the first comprehensive overview of annexin-related research using animal models and their exciting future use for relevant issues in biology and experimental medicine.
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Affiliation(s)
- Thomas Grewal
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia;
- Correspondence: (T.G.); (U.R.); Tel.: +61-(0)2-9351-8496 (T.G.); +49-(0)251-83-52121 (U.R.)
| | - Carles Rentero
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain; (C.R.); (C.E.)
- Centre de Recerca Biomèdica CELLEX, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Carlos Enrich
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain; (C.R.); (C.E.)
- Centre de Recerca Biomèdica CELLEX, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Mohamed Wahba
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia;
| | - Carsten A. Raabe
- Research Group Regulatory Mechanisms of Inflammation, Center for Molecular Biology of Inflammation (ZMBE) and Cells in Motion Interfaculty Center (CiM), Institute of Medical Biochemistry, University of Muenster, 48149 Muenster, Germany;
| | - Ursula Rescher
- Research Group Regulatory Mechanisms of Inflammation, Center for Molecular Biology of Inflammation (ZMBE) and Cells in Motion Interfaculty Center (CiM), Institute of Medical Biochemistry, University of Muenster, 48149 Muenster, Germany;
- Correspondence: (T.G.); (U.R.); Tel.: +61-(0)2-9351-8496 (T.G.); +49-(0)251-83-52121 (U.R.)
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Méndez-Barbero N, Gutiérrez-Muñoz C, Blázquez-Serra R, Martín-Ventura JL, Blanco-Colio LM. Annexins: Involvement in cholesterol homeostasis, inflammatory response and atherosclerosis. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2021; 33:206-216. [PMID: 33622609 DOI: 10.1016/j.arteri.2020.12.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/09/2020] [Accepted: 12/16/2020] [Indexed: 11/27/2022]
Abstract
The annexin superfamily consists of 12 proteins with a highly structural homology that binds to phospholipids depending on the availability of Ca2+-dependent. Different studies of overexpression, inhibition, or using recombinant proteins have linked the main function of these proteins to their dynamic and reversible binding to membranes. Annexins are found in multiple cellular compartments, regulating different functions, such as membrane trafficking, anchoring to the cell cytoskeleton, ion channel regulation, as well as pro- or anti-inflammatory and anticoagulant activities. The use of animals deficient in any of these annexins has established their possible functions in vivo, demonstrating that annexins can participate in relevant functions independent of Ca2+ signalling. This review will focus mainly on the role of different annexins in the pathological vascular remodelling that underlies the formation of the atherosclerotic lesion, as well as in the control of cholesterol homeostasis.
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Affiliation(s)
- Nerea Méndez-Barbero
- Laboratorio de Patología Vascular, IIS-Fundación Jiménez Díaz, Madrid, España; CIBER de Enfermedades Cardiovasculares (CIBERCV), España
| | - Carmen Gutiérrez-Muñoz
- Laboratorio de Patología Vascular, IIS-Fundación Jiménez Díaz, Madrid, España; CIBER de Enfermedades Cardiovasculares (CIBERCV), España
| | | | - José Luis Martín-Ventura
- Laboratorio de Patología Vascular, IIS-Fundación Jiménez Díaz, Madrid, España; CIBER de Enfermedades Cardiovasculares (CIBERCV), España
| | - Luis Miguel Blanco-Colio
- Laboratorio de Patología Vascular, IIS-Fundación Jiménez Díaz, Madrid, España; CIBER de Enfermedades Cardiovasculares (CIBERCV), España.
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14
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Abd Rahman R, Min Tun K, Kamisan Atan I, Mohamed Said MS, Mustafar R, Zainuddin AA. New Benefits of Hydroxychloroquine in Pregnant Women with Systemic Lupus Erythematosus: A Retrospective Study in a Tertiary Centre. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2020; 42:705-711. [PMID: 33254264 PMCID: PMC10309213 DOI: 10.1055/s-0040-1715140] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE To determine pregnancy outcomes in women with systemic lupus erythematosus (SLE) who were treated with hydroxychloroquine in a tertiary center. METHODS A retrospective study involving pregnant women with SLE who had antenatal follow-up and delivery in between 1 January 2007 and 1 January 2017. All participants were retrospectively enrolled and categorized into two groups based on hydroxychloroquine treatment during pregnancy. RESULTS There were 82 pregnancies included with 47 (57.3%) in the hydroxychloroquine group and 35 (42.7%) in the non-hydroxychloroquine group. Amongst hydroxychloroquine users, there were significantly more pregnancies with musculoskeletal involvement (p = 0.03), heavier mean neonatal birthweight (p = 0.02), and prolonged duration of pregnancy (p = 0.001). In non-hydroxychloroquine patients, there were significantly more recurrent miscarriages (p = 0.003), incidence of hypertension (p = 0.01) and gestational diabetes mellitus (p = 0.01) and concurrent medical illness (p = 0.005). Hydroxychloroquine use during pregnancy was protective against hypertension (p = 0.001), and the gestational age at delivery had significant effect on the neonatal birthweight (p = 0.001). However, duration of the disease had a significant negative effect on the neonatal birthweight (p = 0.016). CONCLUSION Hydroxychloroquine enhanced better neonatal outcomes and reduced adverse pregnancy outcomes and antenatal complications such as hypertension and diabetes.
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Affiliation(s)
- Rahana Abd Rahman
- Department of Obstetrics and Gynaecology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Kyaw Min Tun
- Department of Obstetrics and Gynaecology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Ixora Kamisan Atan
- Department of Obstetrics and Gynaecology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | | | - Ruslinda Mustafar
- Department of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Ani Amelia Zainuddin
- Department of Obstetrics and Gynaecology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
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Quiros Roldan E, Biasiotto G, Magro P, Zanella I. The possible mechanisms of action of 4-aminoquinolines (chloroquine/hydroxychloroquine) against Sars-Cov-2 infection (COVID-19): A role for iron homeostasis? Pharmacol Res 2020; 158:104904. [PMID: 32430286 PMCID: PMC7217799 DOI: 10.1016/j.phrs.2020.104904] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/04/2020] [Accepted: 05/06/2020] [Indexed: 02/06/2023]
Abstract
The anti-malarial drugs chloroquine (CQ) and primarily the less toxic hydroxychloroquine (HCQ) are currently used to treat autoimmune diseases for their immunomodulatory and anti-thrombotic properties. They have also been proposed for the treatment of several viral infections, due to their anti-viral effects in cell cultures and animal models, and, currently, for the treatment of coronavirus disease 2019 (COVID-19), the pandemic severe acute respiratory syndrome caused by coronavirus 2 (Sars-Cov-2) infection that is spreading all over the world. Although in some recent studies a clinical improvement in COVID-19 patients has been observed, the clinical efficacy of CQ and HCQ in COVID-19 has yet to be proven with randomized controlled studies, many of which are currently ongoing, also considering pharmacokinetics, optimal dosing regimen, therapeutic level and duration of treatment and taking into account patients with different severity degrees of disease. Here we review what is currently known on the mechanisms of action of CQ and HCQ as anti-viral, anti-inflammatory and anti-thrombotic drugs and discuss the up-to-date experimental evidence on the potential mechanisms of action of CQ/HCQ in Sars-Cov2 infection and the current clinical knowledge on their efficacy in the treatment of COVID-19 patients. Given the role of iron in several human viral infections, we also propose a different insight into a number of CQ and HCQ pharmacological effects, suggesting a potential involvement of iron homeostasis in Sars-Cov-2 infection and COVID-19 clinical course.
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Affiliation(s)
- Eugenia Quiros Roldan
- University Department of Infectious and Tropical Diseases, University of Brescia and ASST Spedali Civili di Brescia, Brescia, Italy
| | - Giorgio Biasiotto
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy; Clinical Chemistry Laboratory, Cytogenetics and Molecular Genetics Section, Diagnostic Department, ASST Spedali Civili di Brescia, Brescia, Italy
| | - Paola Magro
- University Department of Infectious and Tropical Diseases, University of Brescia and ASST Spedali Civili di Brescia, Brescia, Italy
| | - Isabella Zanella
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy; Clinical Chemistry Laboratory, Cytogenetics and Molecular Genetics Section, Diagnostic Department, ASST Spedali Civili di Brescia, Brescia, Italy.
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16
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Volkov I, Seguro L, Leon EP, Kovács L, Roggenbuck D, Schierack P, Gilburd B, Doria A, Tektonidou MG, Agmon-Levin N. Profiles of criteria and non-criteria anti-phospholipid autoantibodies are associated with clinical phenotypes of the antiphospholipid syndrome. AUTOIMMUNITY HIGHLIGHTS 2020; 11:8. [PMID: 32467748 PMCID: PMC7229627 DOI: 10.1186/s13317-020-00131-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 05/06/2020] [Indexed: 12/26/2022]
Abstract
Background Specific anti-phospholipids antibodies (aPLs) are used as classification criteria of the antiphospholipid syndrome (APS). These aPLs, although essential for diagnosis, do not predict disease phenotypes, which may require specific therapies. Non-criteria aPLs are rarely evaluated and their role is yet to be defined. In the current study, we aimed to examine the association between criteria and non-criteria aPLs and APS phenotypes. Methods Serum samples from 188 subjects, 130 APS patients and 58 controls were analyzed for the presence of 20 aPLs (IgG and IgM isotypes to cardiolipin (CL), beta2-glycoprotein1 (β2GP1), phosphatidic acid (P-acid), phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylglycerol (PG), phosphatidylinositol (PI), phosphatidylserine (PS), annexin-5 (AN) and prothrombin (PT) using a line immunoassay (GA Generic Assays, Germany). Sero-positivity to the different aPLs/aPLs profiles was correlated to APS phenotypes (i.e. arterial thrombosis, CNS manifestations, venous thrombosis, relapsing disease, obstetric morbidity). Results In this cohort, arterial thrombosis was associated with accumulative number of ≥ 7/20 aPLs evaluated (OR 4.1; CI 95% 1.9–96, p = 0.001) as well as the sole presence of aPT (IgG) (OR 2.3;CI 95% 1.1–5.1, p = 0.03). CNS manifestations were linked with a profile of 4 aPLs (IgG): aPT, aPG, aPI and aAN (OR 2.6;CI 95% 1.1–6.3, p = 0.03). Symptom-free period of ≥ 3 years was linked with lower number of aPLs and the presence of aPI (IgG) (OR 3.0;CI 95% 1.08–8.1, p < 0.05) or aAN (IgG) (OR 3.4;CI 95% 1.08–10.9, p < 0.05). APS related pregnancy morbidity correlated with a profile of 2 aPLs (IgG): aCL and aPS (OR 2.9; CI 95% 1.3–6.5, p < 0.05) or the sole presence of aAN (IgG) (OR 2.8; CI 95% 1.02–8, p = 0.05). Conclusion In this study, we observed an association between specific criteria/non-criteria aPLs or aPLs profiles and clinical phenotypes of APS. Our data suggest that examination of a wider variety of aPLs may allow better characterization of APS.
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Affiliation(s)
- Ilan Volkov
- 1Clinical Immunology, Angioedema and Allergy Unit, Zabludowicz Center for Autoimmune Diseases, The Chaim Sheba Medical Center, Tel-Hashomer, 52621 Israel.,2Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, 52621 Israel
| | - Luciana Seguro
- 2Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, 52621 Israel.,3Rheumatology Division, Hospital Das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP Brazil
| | - Elaine P Leon
- 3Rheumatology Division, Hospital Das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP Brazil
| | - László Kovács
- 4Department of Rheumatology and Immunology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Dirk Roggenbuck
- 5Institute of Biotechnology, Faculty Environment and Natural Sciences, Brandenburg University of Technology Cottbus-Senftenberg, Cottbus, Germany
| | - Peter Schierack
- 5Institute of Biotechnology, Faculty Environment and Natural Sciences, Brandenburg University of Technology Cottbus-Senftenberg, Cottbus, Germany
| | - Boris Gilburd
- 2Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, 52621 Israel
| | - Andrea Doria
- 6Rheumatology Unit, Department of Medicine, University of Padova, Padova, Italy
| | - Maria G Tektonidou
- 7Rheumatology Unit, First Department of Propaedeutic Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Nancy Agmon-Levin
- 1Clinical Immunology, Angioedema and Allergy Unit, Zabludowicz Center for Autoimmune Diseases, The Chaim Sheba Medical Center, Tel-Hashomer, 52621 Israel.,2Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, 52621 Israel.,8Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
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Svenungsson E, Antovic A. The antiphospholipid syndrome - often overlooked cause of vascular occlusions? J Intern Med 2020; 287:349-372. [PMID: 31957081 DOI: 10.1111/joim.13022] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 01/09/2020] [Indexed: 01/25/2023]
Abstract
The antiphospholipid syndrome (APS) was fully recognized as a clinical entity in the early 1980s. Still, more than 30 years later, the epidemiology of APS is not well described, and furthermore, APS remains a challenge in terms of both diagnostic issues and clinical praxis involving a wide range of specialties. To date, there are no diagnostic criteria for APS. The present classification criteria rely on a combination of clinical manifestations and persistently positive tests for antiphospholipid antibodies (aPL). Clinical symptoms comprise vascular thrombosis, which can affect any vascular bed, including venous, microvascular and arterial vessels, and a set of pregnancy morbidities including early and late miscarriages, foetal death and preeclampsia. APS is more frequent among patients with other autoimmune diseases, and it is especially common in systemic lupus erythematosus (SLE). Importantly, APS symptoms can present in almost any medical specialty, but general knowledge and most previous clinical studies have essentially been confined to haematology, rheumatology and obstetrics/gynaecology. However, recent data demonstrate a relatively high prevalence of aPL also in patients from the general population who suffer from vascular occlusions or pregnancy complications. It is important that these patients are recognized by the general health care since APS is a treatable condition. This review aims to summarize the present knowledge on the history, pathogenesis, clinical manifestations and treatment of APS in order to urge a wide range of clinicians to consider comprehensive assessment of all patients where the diagnosis APS may be conceivable.
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Affiliation(s)
- E Svenungsson
- From the, Department of Medicine Solna, Division of Rheumatology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - A Antovic
- From the, Department of Medicine Solna, Division of Rheumatology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
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Petri M. Improvements in diagnosis and risk assessment of primary and secondary antiphospholipid syndrome. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2019; 2019:415-420. [PMID: 31808834 PMCID: PMC6913440 DOI: 10.1182/hematology.2019000046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Classification criteria for antiphospholipid syndrome have not been updated since the revised Sapporo classification criteria were published in 2006. These criteria have limitations in that they omit nonclassical manifestations (hematologic and neurologic), include anticardiolipin and anti-β2-glycoprotein I immunoglobulin (Ig)M isotypes, and do not separately consider primary (no autoimmune disease) or secondary (usually systemic lupus erythematosus) disease. Recent findings in antiphospholipid antibody include fluctuation of antiphospholipid antibodies, recognition that IgA isotypes do confer risk, identification of the role of complementopathy in catastrophic antiphospholipid syndrome, and elucidation of the role of thrombosis risk equations.
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Affiliation(s)
- Michelle Petri
- Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD
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Grewal T, Enrich C, Rentero C, Buechler C. Annexins in Adipose Tissue: Novel Players in Obesity. Int J Mol Sci 2019; 20:ijms20143449. [PMID: 31337068 PMCID: PMC6678658 DOI: 10.3390/ijms20143449] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 12/12/2022] Open
Abstract
Obesity and the associated comorbidities are a growing health threat worldwide. Adipose tissue dysfunction, impaired adipokine activity, and inflammation are central to metabolic diseases related to obesity. In particular, the excess storage of lipids in adipose tissues disturbs cellular homeostasis. Amongst others, organelle function and cell signaling, often related to the altered composition of specialized membrane microdomains (lipid rafts), are affected. Within this context, the conserved family of annexins are well known to associate with membranes in a calcium (Ca2+)- and phospholipid-dependent manner in order to regulate membrane-related events, such as trafficking in endo- and exocytosis and membrane microdomain organization. These multiple activities of annexins are facilitated through their diverse interactions with a plethora of lipids and proteins, often in different cellular locations and with consequences for the activity of receptors, transporters, metabolic enzymes, and signaling complexes. While increasing evidence points at the function of annexins in lipid homeostasis and cell metabolism in various cells and organs, their role in adipose tissue, obesity and related metabolic diseases is still not well understood. Annexin A1 (AnxA1) is a potent pro-resolving mediator affecting the regulation of body weight and metabolic health. Relevant for glucose metabolism and fatty acid uptake in adipose tissue, several studies suggest AnxA2 to contribute to coordinate glucose transporter type 4 (GLUT4) translocation and to associate with the fatty acid transporter CD36. On the other hand, AnxA6 has been linked to the control of adipocyte lipolysis and adiponectin release. In addition, several other annexins are expressed in fat tissues, yet their roles in adipocytes are less well examined. The current review article summarizes studies on the expression of annexins in adipocytes and in obesity. Research efforts investigating the potential role of annexins in fat tissue relevant to health and metabolic disease are discussed.
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Affiliation(s)
- Thomas Grewal
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
| | - Carlos Enrich
- Department of Biomedicine, Unit of Cell Biology, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Centre de Recerca Biomèdica CELLEX, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Carles Rentero
- Department of Biomedicine, Unit of Cell Biology, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Centre de Recerca Biomèdica CELLEX, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Christa Buechler
- Department of Internal Medicine I, Regensburg University Hospital, 93053 Regensburg, Germany.
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Lan Y, Wang J, Zhang Q, Yang X, Li L, Yin J, Li H, Song X, Chen Z, Liu Y. Genetic variations and haplotypes in the annexin A5 gene are associated with the risk of recurrent pregnancy loss. J Cell Physiol 2019; 234:18308-18316. [PMID: 30887514 DOI: 10.1002/jcp.28463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 02/02/2019] [Accepted: 02/19/2019] [Indexed: 11/10/2022]
Abstract
The expression of annexin A5 (ANXA5) was shown to affect the pathogenesis of recurrent pregnancy loss (RPL). In this study, the effects of two haplotypes, M1 and M2, on the transcription efficiency of ANXA5 promoter were explored. Correlation analysis was used to investigate the association between the single-nucleotide polymorphism haplotypes in ANXA5 promoter and the risk of RPL. And a luciferase reporter assay was carried out to study the effects of haplotypes M1 and M2 on the transcription efficiency of the ANXA5 promoter. To study the association between ANXA5 haplotypes and the risk of RPL, real-time polymerase chain reaction, western blot analysis, and immunohistochemistry assays were conducted to observe the expressions of ANXA5 messenger RNA (mRNA) and protein. Compared to M1 haplotype carriers, M2 haplotype carriers were associated with a higher risk of RPL. Additionally, compared to GATGTC haplotype carriers, GATGGC haplotype carriers were associated with a higher risk of RPL. Compared with RPL cases, the incidences of M2 haplotype were lower in both the population control and parous control cases. Furthermore, M2 carriers showed more significantly decreased activity of ANXA5 promoter compared to the carriers of other haplotypes, indicating that the haplotypes of ANXA5 promoter may be used as a potential biomarker to predict the prognosis of RPL. Moreover, the activity of ANXA5 as well as the mRNA/protein expression of ANXA5 was significantly downregulated in RPL patients, indicating that the M2 haplotype significantly increased the risk of RPL. Therefore, haplotype M2 increased the risk of RPL by inhibiting the expression of ANXA5.
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Affiliation(s)
- Yanli Lan
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei, China
| | - Jing Wang
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei, China
| | - Qinghua Zhang
- Department of Obstetrics and Gynecology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xuezhou Yang
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei, China
| | - Lin Li
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei, China
| | - Jiu Yin
- Department of Obstetrics and Gynecology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hemei Li
- Department of Obstetrics and Gynecology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xuan Song
- Department of Obstetrics and Gynecology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhilan Chen
- Department of Obstetrics and Gynecology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yun Liu
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei, China
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21
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Ruffatti A, Favaro M, Calligaro A, Zambon A, Del Ross T. Management of pregnant women with antiphospholipid antibodies. Expert Rev Clin Immunol 2019; 15:347-358. [DOI: 10.1080/1744666x.2019.1565995] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Amelia Ruffatti
- Rheumatology Unit, Department of Medicine, University Hospital of Padua, Padua, Italy
| | - Maria Favaro
- Rheumatology Unit, Department of Medicine, University Hospital of Padua, Padua, Italy
| | - Antonia Calligaro
- Rheumatology Unit, Department of Medicine, University Hospital of Padua, Padua, Italy
| | - Alessandra Zambon
- Obstetrics and Gynecology Unit, Department of Woman’s and Child’s Health, University Hospital of Padua, Padua, Italy
| | - Teresa Del Ross
- Rheumatology Unit, Department of Medicine, University Hospital of Padua, Padua, Italy
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22
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Belizna C, Pregnolato F, Abad S, Alijotas-Reig J, Amital H, Amoura Z, Andreoli L, Andres E, Aouba A, Apras Bilgen S, Arnaud L, Bienvenu B, Bitsadze V, Blanco P, Blank M, Borghi MO, Caligaro A, Candrea E, Canti V, Chiche L, Chretien JM, Cohen Tervaert JW, Damian L, Delross T, Dernis E, Devreese K, Djokovic A, Esteve-Valverde E, Favaro M, Fassot C, Ferrer-Oliveras R, Godon A, Hamidou M, Hasan M, Henrion D, Imbert B, Jeandel PY, Jeannin P, Jego P, Jourde-Chiche N, Khizroeva J, Lambotte O, Landron C, Latino JO, Lazaro E, de Leeuw K, Le Gallou T, Kiliç L, Limper M, Loufrani L, Lubin R, Magy-Bertrand N, Mahe G, Makatsariya A, Martin T, Muchardt C, Nagy G, Omarjee L, Van Paasen P, Pernod G, Perrinet F, Pïres Rosa G, Pistorius MA, Ruffatti A, Said F, Saulnier P, Sene D, Sentilhes L, Shovman O, Sibilia J, Sinescu C, Stanisavljevic N, Stojanovich L, Tam LS, Tincani A, Tollis F, Udry S, Ungeheuer MN, Versini M, Cervera R, Meroni PL. HIBISCUS: Hydroxychloroquine for the secondary prevention of thrombotic and obstetrical events in primary antiphospholipid syndrome. Autoimmun Rev 2018; 17:1153-1168. [PMID: 30316994 DOI: 10.1016/j.autrev.2018.05.012] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 05/25/2018] [Indexed: 02/09/2023]
Abstract
The relapse rate in antiphospholipid syndrome (APS) remains high, i.e. around 20%-21% at 5 years in thrombotic APS and 20-28% in obstetrical APS [2, 3]. Hydroxychloroquine (HCQ) appears as an additional therapy, as it possesses immunomodulatory and anti-thrombotic various effects [4-16]. Our group recently obtained the orphan designation of HCQ in antiphospholipid syndrome by the European Medicine Agency. Furthermore, the leaders of the project made the proposal of an international project, HIBISCUS, about the use of Hydroxychloroquine in secondary prevention of obstetrical and thrombotic events in primary APS. This study has been launched in several countries and at now, 53 centers from 16 countries participate to this international trial. This trial consists in two parts: a retrospective and a prospective study. The French part of the trial in thrombosis has been granted by the French Minister of Health in December 2015 (the academic trial independent of the pharmaceutical industry PHRC N PAPIRUS) and is coordinated by one of the members of the leading consortium of HIBISCUS.
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Affiliation(s)
- Cristina Belizna
- Vascular and Coagulation Department, University Hospital Angers, Angers, France; MITOVASC institute and CARFI facility, UMR CNRS 6015, INSERM U1083, University of Angers, Angers, France.
| | - Francesca Pregnolato
- Istituto Auxologico Italiano, IRCCS, Laboratory of Immunorheumatology, Milan, Italy
| | - Sebastien Abad
- Department of Internal Medicine, Hospital Avicenne, Publique - Hôpitaux de Paris, University Paris 13, Bobigny, France
| | - Jaume Alijotas-Reig
- Systemic Autoimmune Disease Unit, Department of Internal Medicine, Vall d'Hebron University Hospital, Barcelona, Spain; Department of Medicine, Universitat Autonòma, Barcelona, Spain
| | - Howard Amital
- The Zabludowicz Center for Autoimmune Diseases, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Zahir Amoura
- Internal Medicine Department 2, Pitié-Salpêtrière Hospital, French National Centre for Rare Systemic Diseases, AP-HP, Paris, France; Paris VI University, UPMC, Sorbonne Universities, Paris, France
| | - Laura Andreoli
- Rheumatology and Clinical Immunology Unit, University of Brescia, Brescia, Italy
| | - Emmanuel Andres
- Internal Medicine Department, University Hospital Strasbourg, Strasbourg, France
| | - Achile Aouba
- Department of Internal Medicine, Caen University Hospital, Caen, France; University of Normandy, Caen, France
| | | | - Laurent Arnaud
- Rheumatology Department, University Hospital Strasbourg, Strasbourg, France
| | - Boris Bienvenu
- Department of Internal Medicine, Saint Joseph Hospital, Marseille, France
| | - Viktoria Bitsadze
- Department of Obstetrics and Gynecology, I.M. Sechenow First Moscow State Medical University, Moscow, Russia
| | - Patrick Blanco
- ImmunoConcEpT, CNRS-UMR 5164, University Bordeaux, Bordeaux, France; FHU ACRONIM, Bordeaux University Hospital, Place Amélie Raba Léon, 33076 Bordeaux, France
| | - Miri Blank
- The Zabludowicz Center for Autoimmune Diseases, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Maria Orietta Borghi
- Istituto Auxologico Italiano, IRCCS, Laboratory of Immunorheumatology, Milan, Italy
| | - Antonia Caligaro
- Rheumatology Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Elisabeta Candrea
- Department of Dermatology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Valentina Canti
- Immunology, Rheumatology, Allergology and Rare Disease-IRCCS San Raffaele Hospital, Laboratory of Autoimmunity and vascular inflammation San Raffaele, Milan, Italy
| | - Laurent Chiche
- Department of Internal Medicine and Infectious Disease, Hôpital européen Marseille, Marseille, France
| | | | - Jan Willem Cohen Tervaert
- Nephrology Department, Maastricht University, Maastricht, the Netherlands; Rheumatology Department, Kaye Edmonton Clinic University of Alberta, Edmonton, Canada
| | - Laura Damian
- Department of Rheumatology, County Emergency Hospital Cluj-Napoca, Cluj-Napoca, Romania
| | - Teresa Delross
- Rheumatology Unit, Department of Medicine, University of Padua, Padua, Italy
| | | | - Katrien Devreese
- Coagulation Laboratory, Department of Clinical Biology, Immunology and Microbiology, Ghent University Hospital, Ghent, Belgium
| | - Aleksandra Djokovic
- Scientific Research Department, Internal Medicine-Rheumatology Bezhanijska Kosa, University Medical Center, Belgrade University, Belgrade, Serbia
| | | | - Maria Favaro
- Rheumatology Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Céline Fassot
- MITOVASC institute and CARFI facility, UMR CNRS 6015, INSERM U1083, University of Angers, Angers, France
| | - Raquel Ferrer-Oliveras
- Systemic Autoimmune Disease Unit, Department of Internal Medicine, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Alban Godon
- Departement of hematology et immunology, University Hospital Angers, Angers, France
| | - Mohamed Hamidou
- Department of Internal Medicine, University Hospital Nantes, Nantes, France
| | - Milena Hasan
- Cytometry and Biomarkers Unit of Technology and Service, Center for Translational Science, Institut Pasteur, 28, Rue Doct Roux, 75015 Paris, France
| | - Daniel Henrion
- MITOVASC institute and CARFI facility, UMR CNRS 6015, INSERM U1083, University of Angers, Angers, France
| | - Bernard Imbert
- Vascular Medicine Department, Grenoble University Hospital, Grenoble, France
| | - Pierre Yves Jeandel
- Department of Internal Medicine, Archet-1 Hospital, University of Nice-Sophia-Antipolis, 151 Route de Saint Antoine de Ginestière, 06202 Nice, France
| | - Pascale Jeannin
- Departement of hematology et immunology, University Hospital Angers, Angers, France
| | - Patrick Jego
- Department of Internal Medicine, University Hospital Rennes, Rennes, France
| | - Noemie Jourde-Chiche
- INSERM, UMR-S 1076, VRCM, Aix-Marseille University, Marseille, France; Centre de Néphrologie et Transplantation Rénale, AP-HM, Marseille, France
| | - Jamilya Khizroeva
- Department of Obstetrics and Gynecology, I.M. Sechenow First Moscow State Medical University, Moscow, Russia
| | - Olivier Lambotte
- Publique - Hôpitaux de Paris, Hôpital Bicêtre, Service de Médecine Interne et Immunologie clinique, F-94275 Le Kremlin-Bicêtre, France; UMR 1184, Université Paris Sud, F-94276 Le Kremlin-Bicêtre, France; INSERM, U1184, Immunology of Viral Infections and Autoimmune Diseases, F-94276 Le Kremlin-Bicêtre, France; CEA, DSV/iMETI, IDMIT, F-92265 Fontenay-aux-Roses, France
| | - Cédric Landron
- Department of Internal Medicine, University Hospital Poitiers, Poitiers, France
| | - Jose Omar Latino
- Autoimmune and thrombophilic disorders Department, Hospital Carlos G. Durand, Buenos Aires, Argentina
| | - Estibaliz Lazaro
- Department of Internal Medicine, Haut-Lévêque Hospital, 33604 Pessac, France
| | - Karina de Leeuw
- Department of Internal Medicine, Division of Clinical Immunology, University Hospital Groningen, Groningen, the Netherlands
| | - Thomas Le Gallou
- Department of Internal Medicine, University Hospital Rennes, Rennes, France
| | - Levent Kiliç
- Internal Medicine Department, Hacettepe University, Ankara, Turkey
| | - Maarten Limper
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Laurent Loufrani
- MITOVASC institute and CARFI facility, UMR CNRS 6015, INSERM U1083, University of Angers, Angers, France
| | - Romain Lubin
- MITOVASC institute and CARFI facility, UMR CNRS 6015, INSERM U1083, University of Angers, Angers, France
| | - Nadine Magy-Bertrand
- Department of Internal Medicine, University Hospital Jean Minjoz, Besançon, France
| | - Guillaume Mahe
- Vascular Medicine Department, University Hospital Rennes, Rennes, France; CHU Rennes, INSERM, CIC 1414, University Rennes, F-35000 Rennes, France
| | - Alexander Makatsariya
- Department of Obstetrics and Gynecology, I.M. Sechenow First Moscow State Medical University, Moscow, Russia
| | - Thierry Martin
- Clinical Immunology Department, University Hospital Strasbourg, Strasbourg, France
| | - Christian Muchardt
- CM Unit of Epigenetic Regulation, Department of Developmental and Stem Cell Biology UMR3738 CNRS, Pasteur Institute, Paris, France
| | - Gyorgy Nagy
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary; Department of Rheumatology, 3rd Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - Loukman Omarjee
- Vascular Medicine Department, University Hospital Rennes, Rennes, France; CHU Rennes, INSERM, CIC 1414, University Rennes, F-35000 Rennes, France
| | - Pieter Van Paasen
- Department of Nephrology and Clinical Immunology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Gilles Pernod
- InnoVTE: French Investigation Network on Venous Thromboembolique Disease, Grenoble-Alps University, France; Informatique, Mathématiques et Applications (IMAG) Unité Mixte de Recherche (UMR), 5525/Themas, Centre National de Recherche Scientifique (CNRS)/Techniques de l'Ingénieurie Médicale et de la Complexité (TIMC), Grenoble, France
| | | | - Gilberto Pïres Rosa
- Internal Medicine Sao Joao Hospital, Alameda Prof Hernani Monteiro Vila Nova de Gaia, 4200-319 Porto, Portugal
| | | | - Amelia Ruffatti
- Rheumatology Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Fatma Said
- Internal Medicine Department, University Hospital La Rabta, Tunis, Tunisia
| | - Patrick Saulnier
- Research Department Unit, University Hospital Angers, Angers, France
| | - Damien Sene
- Department of Internal Medicine, Lariboisière Hospital, Paris Diderot University, Paris, France
| | - Loic Sentilhes
- Department of Obstetrics and Gynecology, Bordeaux University Hospital, Bordeaux, France
| | - Ova Shovman
- The Zabludowicz Center for Autoimmune Diseases, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Jean Sibilia
- Rheumatology Department, University Hospital Strasbourg, Strasbourg, France
| | - Crina Sinescu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Natasa Stanisavljevic
- Scientific Research Department, Internal Medicine-Rheumatology Bezhanijska Kosa, University Medical Center, Belgrade University, Belgrade, Serbia
| | - Ljudmila Stojanovich
- Scientific Research Department, Internal Medicine-Rheumatology Bezhanijska Kosa, University Medical Center, Belgrade University, Belgrade, Serbia
| | - Lai Shan Tam
- Department of Medicine and Therapeutics, and Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Angela Tincani
- Rheumatology and Clinical Immunology Unit, University of Brescia, Brescia, Italy
| | | | - Sebastian Udry
- Autoimmune and thrombophilic disorders Department, Hospital Carlos G. Durand, Buenos Aires, Argentina
| | - Marie Noelle Ungeheuer
- Clinical Investigation and Acces to Bioresources Department, Institut Pasteur, 28, Rue Doct Roux, 75015 Paris, France
| | | | - Ricard Cervera
- Department of Autoimmune Diseases, Hospital Clinic, Barcelona, Catalonia, Spain
| | - Pier Luigi Meroni
- Istituto Auxologico Italiano, IRCCS, Laboratory of Immunorheumatology, Milan, Italy
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Noureldine MHA, Nour-Eldine W, Khamashta MA, Uthman I. Insights into the diagnosis and pathogenesis of the antiphospholipid syndrome. Semin Arthritis Rheum 2018; 48:860-866. [PMID: 30217394 DOI: 10.1016/j.semarthrit.2018.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/30/2018] [Accepted: 08/14/2018] [Indexed: 11/16/2022]
Abstract
The Antiphospholipid syndrome (APS), formerly known as Anticardiolipin or Hughes syndrome, is a systemic autoimmune disorder characterized by obstetrical complications and thrombotic events affecting almost every organ-system in patients persistently testing positive for antiphospholipid antibodies (aPL). The contribution of the extra-criteria aPL to the pathogenesis of APS have exceeded the expectations of a simple, direct pathologic 'hit' leading to thrombogenesis or obstetrical complications, and more pathologic pathways are being linked directly or indirectly to aPL. The value of extra-criteria aPL is on the rise, and these antibodies are nowadays evaluated as markers for risk assessment in the diagnostic approach to APS. A diagnosis of APS should be considered in pediatric patients with suggestive clinical and laboratory picture. Management of APS remains mostly based on anticoagulation, while other drugs are being tested for efficacy and side effects. Low-dose aspirin may have a role in the management of thrombotic and obstetric APS. Due to the high variability in disease severity and complication recurrence outcomes, new tools are being developed and validated to assess the damage index and quality of life of APS patients.
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Affiliation(s)
| | - Wared Nour-Eldine
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | | | - Imad Uthman
- Division of Rheumatology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
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24
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Rand JH, Taatjes DJ. Reimagining the antiphospholipid syndrome, an enigmatic thrombophilic disorder, through the looking glass of microscopic imaging. Histochem Cell Biol 2018; 150:529-543. [PMID: 30121745 DOI: 10.1007/s00418-018-1709-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2018] [Indexed: 12/21/2022]
Abstract
The antiphospholipid syndrome (APS) is an autoimmune thrombophilic disorder that was described as a diagnostic entity over 30 years ago. And yet the pathogenic mechanisms that are responsible for its clinical manifestations remain to be definitively established. The syndrome is defined by (1) the concurrence of vascular thrombosis and/or pregnancy complications together with (2) positivity for immunoassays and coagulation tests that were derived from clinical observations of two anomalous laboratory test results-specifically, false positivity for syphilis infection in uninfected individuals and the finding of inhibitors of blood coagulation in patients who lacked any bleeding tendencies. Over the years, these were standardized into immunoassays and coagulation assays for APS. Here, we describe how prior knowledge of the immunologic and coagulation aspects of the disorder led to research involving a range of imaging modalities including light microscopy, immunohistochemistry, confocal scanning laser microscopy, transmission and scanning electron microscopy, and atomic force microscopy. In turn, the results from those studies led to a "reimagining" of APS that has advanced the understanding of pathogenic mechanisms of the disorder and has led to the development of novel mechanistically based diagnostics along with potential new treatment approaches that target disease mechanisms.
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Affiliation(s)
- Jacob H Rand
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Douglas J Taatjes
- Department of Pathology and Laboratory Medicine, and Microscopy Imaging Center, Larner College of Medicine, University of Vermont, 89 Beaumont Avenue, Burlington, VT, 05405, USA.
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Radic M, Pattanaik D. Cellular and Molecular Mechanisms of Anti-Phospholipid Syndrome. Front Immunol 2018; 9:969. [PMID: 29867951 PMCID: PMC5949565 DOI: 10.3389/fimmu.2018.00969] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 04/18/2018] [Indexed: 01/10/2023] Open
Abstract
The primary anti-phospholipid syndrome (APS) is characterized by the production of antibodies that bind the phospholipid-binding protein β2 glycoprotein I (β2GPI) or that directly recognize negatively charged membrane phospholipids in a manner that may contribute to arterial or venous thrombosis. Clinically, the binding of antibodies to β2GPI could contribute to pathogenesis by formation of immune complexes or modification of coagulation steps that operate along cell surfaces. However, additional events are likely to play a role in pathogenesis, including platelet and endothelial cell activation. Recent studies focus on neutrophil release of chromatin in the form of neutrophil extracellular traps as an important disease contributor. Jointly, the participation of both the innate and adaptive arms of the immune system in aspects of the APS make the complete understanding of crucial steps in pathogenesis extremely difficult. Only coordinated and comprehensive analyses, carried out in different clinical and research settings, are likely to advance the understanding of this complex disease condition.
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Affiliation(s)
- Marko Radic
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Debendra Pattanaik
- Division of Rheumatology, Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
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Ruffatti A, Hoxha A, Favaro M, Tonello M, Colpo A, Cucchini U, Banzato A, Pengo V. Additional Treatments for High-Risk Obstetric Antiphospholipid Syndrome: a Comprehensive Review. Clin Rev Allergy Immunol 2018; 53:28-39. [PMID: 27342460 DOI: 10.1007/s12016-016-8571-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Most investigators currently advocate prophylactic-dose heparin plus low-dose aspirin as the preferred treatment of otherwise healthy women with obstetric antiphospholipid syndrome, whilst women with a history of vascular thrombosis alone or associated with pregnancy morbidity are usually treated with therapeutic heparin doses in association with low-dose aspirin in an attempt to prevent both thrombosis and pregnancy morbidity. However, the protocols outlined above fail in about 20 % of pregnant women with antiphospholipid syndrome. Identifying risk factors associated with pregnancy failure when conventional therapies are utilized is an important step in establishing guidelines to manage these high-risk patients. Some clinical and laboratory risk factors have been found to be related to maternal-foetal complications in pregnant women on conventional therapy. However, the most efficacious treatments to administer to high-risk antiphospholipid syndrome women in addition to conventional therapy in order to avoid pregnancy complications are as yet unestablished. This is a comprehensive review on this topic and an invitation to participate in a multicentre study in order to identify the best additional treatments to be used in this subset of antiphospholipid syndrome patients.
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Affiliation(s)
- Amelia Ruffatti
- Rheumatology Unit, Department of Medicine, University of Padua, Padua, Italy.
- Reumatologia, Policlinico Universitario, Via Giustiniani, 2-35128, Padova, Italy.
| | - Ariela Hoxha
- Rheumatology Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Maria Favaro
- Rheumatology Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Marta Tonello
- Rheumatology Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Anna Colpo
- Blood Transfusion Unit, University-Hospital of Padua, Padua, Italy
| | - Umberto Cucchini
- Cardiology Unit, Department of Cardio-Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Alessandra Banzato
- Cardiology Unit, Department of Cardio-Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Vittorio Pengo
- Cardiology Unit, Department of Cardio-Thoracic and Vascular Sciences, University of Padua, Padua, Italy
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27
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Immunoglobulins from sera of APS patients bind HTR-8/SVneo trophoblast cell line and reduce additional mediators of cell invasion. Reprod Biol 2017; 17:389-395. [PMID: 29102762 DOI: 10.1016/j.repbio.2017.10.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 10/18/2017] [Accepted: 10/27/2017] [Indexed: 12/20/2022]
Abstract
Immunoglobulins from sera of patients with antiphospholipid syndrome (APS) decrease trophoblast cell invasion in vitro. This study aimed to extend understanding of cellular effects of immunoglobulins from APS (aPL+) in HTR-8/SVneo cells. aPL+ IgG induced change in effector molecules important for cell invasion was investigated further. After 1h of culture 21% cells bound aPL+ IgG, as opposed to 6% in control (aPL-). This was accompanied by increase in phospho-p38 at 30min. After 24h treatment aPL+IgG decreased protein levels of integrin subunits α1 (78% of control; p<0.01), α4 (65% of control, p<0.01), α5 (76% of control; p<0.01) and β1 (80% of control; p<0.01), and secreted gal-1 (68% of control; p<0.05). ProMMP-9 was reduced to 70% of control (p<0.001). Treatment with inhibitor of p38 MAPK signaling SB202190 reversed inhibition in integrin β1 and secreted gal-1. Involvement of p38 MAPK signaling and decrease in integrin subunit α4, proMMP-9, and secreted gal-1 in HTR-8/SVneo cells are novel and extend the list of mediators of trophoblast invasion affected by aPL.
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Potential Roles of Antiphospholipid Antibodies in Generating Platelet-C4d in Systemic Lupus Erythematosus. Antibodies (Basel) 2017; 6:antib6030009. [PMID: 31548524 PMCID: PMC6698828 DOI: 10.3390/antib6030009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 05/12/2017] [Accepted: 06/21/2017] [Indexed: 01/29/2023] Open
Abstract
Premature, accelerated onset of atherothrombotic disease is prevalent in patients with systemic lupus erythematosus (SLE). Most, if not all, atherothrombotic diseases are likely to involve platelets and complement. Previously, we discovered that platelets bearing complement activation product C4d (P-C4d) are present in SLE patients, and are significantly associated with antiphospholipid (aPL) antibody positivity and stroke in SLE patients. The goal of the present study was to further elucidate the role of aPL and other platelet-reactive autoantibodies in the generation of P-C4d. To determine the association between P-C4d and aPL antibodies, the serum levels of aPL antibodies and P-C4d of 180 SLE patients were measured by enzyme-linked immunoassays and flow cytometry, respectively. To investigate the role of aPL antibodies, and possibly other autoantibodies as well, in mediating the generation of P-C4d, in vitro 2-step P-C4d induction experiments were performed. The results showed that the presence and levels of aPL antibodies in the serum were specifically elevated in SLE patients with positive P-C4d. The plasma and immunoglobulins purified from SLE patients who were positive for P-C4d and aPL were capable of inducing C4d deposition on normal platelets in vitro. The capacity of SLE plasma in inducing P-C4d appeared to correlate proportionately to the serum aPL levels. Collectively, the results demonstrate that both aPL and other platelet-reactive autoantibodies may participate in mediating the generation of P-C4d in SLE patients.
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Grewal T, Wason SJ, Enrich C, Rentero C. Annexins - insights from knockout mice. Biol Chem 2017; 397:1031-53. [PMID: 27318360 DOI: 10.1515/hsz-2016-0168] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 06/14/2016] [Indexed: 12/23/2022]
Abstract
Annexins are a highly conserved protein family that bind to phospholipids in a calcium (Ca2+) - dependent manner. Studies with purified annexins, as well as overexpression and knockdown approaches identified multiple functions predominantly linked to their dynamic and reversible membrane binding behavior. However, most annexins are found at multiple locations and interact with numerous proteins. Furthermore, similar membrane binding characteristics, overlapping localizations and shared interaction partners have complicated identification of their precise functions. To gain insight into annexin function in vivo, mouse models deficient of annexin A1 (AnxA1), A2, A4, A5, A6 and A7 have been generated. Interestingly, with the exception of one study, all mice strains lacking one or even two annexins are viable and develop normally. This suggested redundancy within annexins, but examining these knockout (KO) strains under stress conditions revealed striking phenotypes, identifying underlying mechanisms specific for individual annexins, often supporting Ca2+ homeostasis and membrane transport as central for annexin biology. Conversely, mice lacking AnxA1 or A2 show extracellular functions relevant in health and disease that appear independent of membrane trafficking or Ca2+ signaling. This review will summarize the mechanistic insights gained from studies utilizing mouse models lacking members of the annexin family.
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Abstract
There is biological plausibility that coagulation activation underlies a proportion of in vitro fertilisation IVF failures and recurrent early clinical pregnancy loss (RPL). However, low-molecular-weight heparin (LMWH) use, based upon previous clinical outcome alone, is not effective in preventing RPL. RPL is heterogeneous in mechanism. Identifying those with an underlying thrombotic mechanism would allow stratification for LMWH treatment. Annexin A5 is an anticoagulant protein expressed on the trophoblast surface. The annexin A5 M2 haplotype (ANXA5 M2) is associated with several placenta mediated pregnancy complications (PMPC) and poor IVF outcome. It is transmitted equally by males and females. A pragmatic observational study of IVF couples screened for M2 carriage and treated with LMWH achieved a 37.9% live birth rate, similar to an unscreened and untreated group with fewer adverse risk factors for conception and a better prognosis from assisted conception. This suggests that LMWH may counteract the adverse effects of M2 carriage. Using this biomarker to stratify IVF and PMPC patients for LMWH treatment merits further evaluation.
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Affiliation(s)
- Simon Fishel
- CARE Fertility Group, John Webster House, 6 Lawrence Drive, Nottingham, United Kingdom
| | - Deborah J Baker
- IHG Pharmaco Ltd, 20-22 Wenlock Road, London, United Kingdom.
| | - Ian A Greer
- Faculty of Biology Medicine and Health, Core Technology, Facility, University of Manchester, Manchester, United Kingdom
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Taatjes DJ, Bouffard N, von Turkovich M, Quinn AS, Wu XX, Vasovic LV, Rand JH. Visualization of macro-immune complexes in the antiphospholipid syndrome by multi-modal microscopy imaging. Micron 2017; 100:23-29. [PMID: 28463750 DOI: 10.1016/j.micron.2017.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 01/01/2023]
Abstract
The antiphospholipid syndrome (APS) is an autoimmune thrombotic condition that is marked by autoantibodies against phospholipid-binding proteins. The mechanism(s) of thrombogenesis has (have) resisted elucidation since its description over thirty years ago. Nevertheless, a defining aspect of the disorder is positivity for clinical laboratory tests that confirm antibody binding to anionic phospholipids. It is remarkable that, to our knowledge, the binding of proteins from plasmas of APS patients to phospholipid has not been previously imaged. We therefore investigated this with high resolution microscopy-based imaging techniques that have not been previously used to address this question, namely atomic force microscopy and scanning electron microscopy. Atomic force microscopy imaging of APS plasmas incubated on an anionic planar phospholipid layer revealed the formation of distinct complex three-dimensional structures, which were morphologically dissimilar to structures formed from control plasmas from healthy patients. Likewise, scanning electron microscopy analysis of phospholipid vesicles incubated with APS plasmas in suspension showed formation of layered macro-immune complexes demonstrated by the significant agglomeration of a complex proteinaceous matrix from soluble plasma and aggregation of particles. In contrast, plasmas from healthy control samples bound to phospholipid vesicles in suspension generally displayed a more flattened, mat-like appearance by scanning electron microscopy. Scanning electron microscopy of plasma samples incubated on planar phospholipid layers and previously imaged by atomic force microscopy, corroborated the results obtained by mixing the plasmas with phospholipids in solution. Analysis of the incorporated proteins by silver stained SDS-polyacrylamide gel electrophoresis indicated considerable heterogeneity in the composition of the phospholipid vesicle-adsorbed proteins among APS patients. To our knowledge, these results provide the first images of plasma-derived APS immune complexes at high resolution, and show their consistent presence and heterogeneous compositions in APS patients. These findings demonstrate how high resolution microscopic techniques can contribute to advancing the understanding of an enigmatic disorder and may lay additional groundwork for furthering mechanistic understanding of APS.
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Affiliation(s)
- Douglas J Taatjes
- Department of Pathology and Laboratory Medicine, Microscopy Imaging Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT, United States.
| | - Nicole Bouffard
- Department of Pathology and Laboratory Medicine, Microscopy Imaging Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT, United States
| | - Michele von Turkovich
- Department of Pathology and Laboratory Medicine, Microscopy Imaging Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT, United States
| | - Anthony S Quinn
- Department of Pathology and Laboratory Medicine, Microscopy Imaging Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT, United States
| | - Xiao-Xuan Wu
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, United States
| | - Ljiljana V Vasovic
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, United States
| | - Jacob H Rand
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, United States
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Arachchillage DRJ, Laffan M. Pathogenesis and management of antiphospholipid syndrome. Br J Haematol 2017; 178:181-195. [PMID: 28339096 DOI: 10.1111/bjh.14632] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Antiphospholipid antibodies are a heterogeneous group of autoantibodies that have clear associations with thrombosis and pregnancy morbidity, and which together constitute the 'antiphospholipid syndrome' (APS). However, the pathophysiology of these complications is not well understood and their heterogeneity suggests that more than one pathogenic process may be involved. Diagnosis remains a combination of laboratory analysis and clinical observation but there have been significant advances in identifying specific pathogenic features, such as domain I-specific anti-β2-glycoprotein-I antibodies. This in turn has pointed to endothelial and complement activation as important factors in the pathogenesis of APS. Consequently, although anticoagulation remains the standard treatment for thrombotic APS and during pregnancy, the realisation that these additional pathways are involved in the pathogenesis of APS has significant implications for treatment: agents acting outside the coagulation system, such as hydroxychloroquine for pregnancy complications and sirolimus as an inhibitor of the mammalian target of rapamycin (mTOR) pathway, are now under evaluation and represent a radical change in thinking for haematologists. Conventional anticoagulation is also under challenge from new, direct acting anticoagulants. This review will provide a comprehensive overview of the evolving understanding of APS pathogenesis and how this and novel therapeutics will alter diagnosis and management.
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Affiliation(s)
- Deepa R J Arachchillage
- Department of Haematology, Imperial College Healthcare NHS Trust and Imperial College London, Hammersmith Hospital, London, UK
| | - Mike Laffan
- Department of Haematology, Imperial College Healthcare NHS Trust and Imperial College London, Hammersmith Hospital, London, UK
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Zhang S, Wu Z, Li J, Wen X, Li L, Zhang W, Zhao J, Zhang F, Li Y. Evaluation of the clinical relevance of anti-annexin-A5 antibodies in Chinese patients with antiphospholipid syndrome. Clin Rheumatol 2016; 36:407-412. [DOI: 10.1007/s10067-016-3510-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 11/15/2016] [Accepted: 12/09/2016] [Indexed: 10/20/2022]
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Whitlock JM, Hartzell HC. Anoctamins/TMEM16 Proteins: Chloride Channels Flirting with Lipids and Extracellular Vesicles. Annu Rev Physiol 2016; 79:119-143. [PMID: 27860832 DOI: 10.1146/annurev-physiol-022516-034031] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Anoctamin (ANO)/TMEM16 proteins exhibit diverse functions in cells throughout the body and are implicated in several human diseases. Although the founding members ANO1 (TMEM16A) and ANO2 (TMEM16B) are Ca2+-activated Cl- channels, most ANO paralogs are Ca2+-dependent phospholipid scramblases that serve as channels facilitating the movement (scrambling) of phospholipids between leaflets of the membrane bilayer. Phospholipid scrambling significantly alters the physical properties of the membrane and its landscape and has vast downstream signaling consequences. In particular, phosphatidylserine exposed on the external leaflet of the plasma membrane functions as a ligand for receptors vital for cell-cell communication. A major consequence of Ca2+-dependent scrambling is the release of extracellular vesicles that function as intercellular messengers by delivering signaling proteins and noncoding RNAs to alter target cell function. We discuss the physiological implications of Ca2+-dependent phospholipid scrambling, the extracellular vesicles associated with this activity, and the roles of ANOs in these processes.
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Affiliation(s)
- Jarred M Whitlock
- Department of Cell Biology, Emory University School of Medicine, Atlanta, Georgia 30322;
| | - H Criss Hartzell
- Department of Cell Biology, Emory University School of Medicine, Atlanta, Georgia 30322;
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Velo-García A, Castro SG, Isenberg DA. The diagnosis and management of the haematologic manifestations of lupus. J Autoimmun 2016; 74:139-160. [DOI: 10.1016/j.jaut.2016.07.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 07/01/2016] [Indexed: 12/21/2022]
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Avriel A, Fleischer S, Friger M, Shovman O, Neuman G, Shoenfeld Y, Abu-Shakra M. Prediction of Antiphospholipid syndrome using Annexin A5 competition assay in patients with SLE. Clin Rheumatol 2016; 35:2933-2938. [PMID: 27704312 DOI: 10.1007/s10067-016-3428-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/17/2016] [Accepted: 09/20/2016] [Indexed: 01/04/2023]
Abstract
A significantly high correlation between reduced activity of Annexin A5 by the flow cytometric assay (FCA) and the diagnosis of antiphospholipid syndrome (APS) has been reported. The aim of this study was to assess the clinical and laboratory significance of the Annexin A5 competition assay among patients with systemic lupus erythematosus (SLE). The FCA competition assay was performed on blood samples from 57 consecutive SLE patients. The FCA was performed according to a previously validated method. Forty-seven patients (82.5 %) had SLE without APS and ten (17.5 %) had SLE with APS. Twenty-four (42 %) of the patients had mean levels of AnxA5 fluorescence below the mean and standard deviation of the controls and were considered positive. SLE patients with a positive FCA were found to have an increased risk for a hypercoagulable or vascular state (86 % of the patients had cerebrovascular disease, 89 % had Raynaud's phenomenon, and 80 % had deep vein thrombosis). The risk for any hypercoagulable or vascular state was significantly increased (P = 0.012, RR-2.3, 95 % CI 1.4-3.8). A positive FCA assay was found in 90 % of the patients with APS (P < 0.001), with a sensitivity of 90 % and a specificity of 68 % for this diagnosis. The positive and negative predictive values were 0.4 and 0.97, respectively. Correlations were found between positive FCA and positive Anti-Cardiolipin antibody (P < 0.001), and Anti-β2 glycoprotein I levels (P = 0.013). Our findings suggest that the FCA is a practical assay for the detection of clinically relevant APS among patients with SLE.
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Affiliation(s)
- Avital Avriel
- Department of Medicine, Soroka Medical Center, Faculty of Health Sciences Ben-Gurion University, Beer-Sheva, Israel
| | - Stela Fleischer
- Blood Bank and Transfusion Medicine, Soroka University Medical Centre, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Michael Friger
- Department of Public Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ora Shovman
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Sackler Faculty of Medicine in Tel-Aviv University, Tel-Aviv, Israel
| | - Gal Neuman
- Rambam Medical Center and Technion Faculty of Medicine, Haifa, Israel
| | - Yehuda Shoenfeld
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Sackler Faculty of Medicine in Tel-Aviv University, Tel-Aviv, Israel
| | - Mahmoud Abu-Shakra
- Department of Medicine, Soroka Medical Center, Faculty of Health Sciences Ben-Gurion University, Beer-Sheva, Israel. .,Rheumatic Diseases Unit, Soroka University Medical Centre, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
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Bećarević M. The IgG and IgM isotypes of anti-annexin A5 antibodies: relevance for primary antiphospholipid syndrome. J Thromb Thrombolysis 2016; 42:552-7. [DOI: 10.1007/s11239-016-1389-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Ho YC, Ahuja KDK, Körner H, Adams MJ. β 2GP1, Anti-β 2GP1 Antibodies and Platelets: Key Players in the Antiphospholipid Syndrome. Antibodies (Basel) 2016; 5:E12. [PMID: 31557993 PMCID: PMC6698853 DOI: 10.3390/antib5020012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 04/26/2016] [Accepted: 04/26/2016] [Indexed: 12/21/2022] Open
Abstract
Anti-beta 2 glycoprotein 1 (anti-β2GP1) antibodies are commonly found in patients with autoimmune diseases such as the antiphospholipid syndrome (APS) and systemic lupus erythematosus (SLE). Their presence is highly associated with increased risk of vascular thrombosis and/or recurrent pregnancy-related complications. Although they are a subtype of anti-phospholipid (APL) antibody, anti-β2GP1 antibodies form complexes with β2GP1 before binding to different receptors associated with anionic phospholipids on structures such as platelets and endothelial cells. β2GP1 consists of five short consensus repeat termed "sushi" domains. It has three interchangeable conformations with a cryptic epitope at domain 1 within the molecule. Anti-β2GP1 antibodies against this cryptic epitope are referred to as 'type A' antibodies, and have been suggested to be more strongly associated with both vascular and obstetric complications. In contrast, 'type B' antibodies, directed against other domains of β2GP1, are more likely to be benign antibodies found in asymptomatic patients and healthy individuals. Although the interactions between anti-β2GP1 antibodies, β2GP1, and platelets have been investigated, the actual targeted metabolic pathway(s) and/or receptor(s) involved remain to be clearly elucidated. This review will discuss the current understanding of the interaction between anti-β2GP1 antibodies and β2GP1, with platelet receptors and associated signalling pathways.
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Affiliation(s)
- Yik C Ho
- School of Health Sciences, University of Tasmania, Locked Bag 1322, Launceston, Tasmania 7250, Australia.
| | - Kiran D K Ahuja
- School of Health Sciences, University of Tasmania, Locked Bag 1322, Launceston, Tasmania 7250, Australia.
| | - Heinrich Körner
- Menzies Institute for Medical Research, University of Tasmania, Private Bag 23, Hobart, Tasmania 7001, Australia.
| | - Murray J Adams
- School of Health Sciences, University of Tasmania, Locked Bag 1322, Launceston, Tasmania 7250, Australia.
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Khamashta M, Taraborelli M, Sciascia S, Tincani A. Antiphospholipid syndrome. Best Pract Res Clin Rheumatol 2016; 30:133-48. [DOI: 10.1016/j.berh.2016.04.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mandoj C, Renna R, Plantone D, Sperduti I, Cigliana G, Conti L, Koudriavtseva T. Anti-annexin antibodies, cholesterol levels and disability in multiple sclerosis. Neurosci Lett 2015; 606:156-60. [DOI: 10.1016/j.neulet.2015.08.054] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 08/14/2015] [Accepted: 08/30/2015] [Indexed: 10/23/2022]
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Abstract
INTRODUCTION A pro-coagulant state during pregnancy can be involved in the occurrence of gestational vascular complications (GVCs) and venous thromboembolism (VTE). AREAS COVERED Antithrombotic drugs are used to prevent GVCs and VTE. Aspirin is not efficacious to prevent recurrences in women with previous early loss, while it can prevent pre-eclampsia in some groups of women. Heparins are not effective in the prevention of early recurrent loss and there is uncertainty about their efficacy in women carrying inherited thrombophilias. They could be efficacious in the prevention of GVCs in carriers of inherited thrombophilias, as GVCs have heterogeneous causes, and future studies have to focus on more homogeneous groups of patients. Not enough data are available regarding prophylaxis with heparins to prevent pregnancy-related VTE, but an accurate risk stratification of women during pregnancy and puerperium is crucial for administering prophylaxis in moderate-/high-risk women. Aspirin does not improve live births after assisted reproductive technologies, while heparins increase the number of clinical pregnancies and live births. EXPERT OPINION Aspirin is efficacious in the prevention of GVCs in women at risk for pre-eclampsia and in those with antiphospholipid antibodies syndrome. Heparins could give benefit to women at risk for GVCs and/or pregnancy-related VTE.
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Affiliation(s)
- Elvira Grandone
- Unita' di Aterosclerosi e Trombosi, I.R.C.C.S. 'Casa Sollievo della Sofferenza' , S. Giovanni Rotondo (FOGGIA) , Italy +39 0 882 416 286 ; +39 0 882 416 273 ;
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Rodríguez-García V, Ioannou Y, Fernández-Nebro A, Isenberg DA, Giles IP. Examining the prevalence of non-criteria anti-phospholipid antibodies in patients with anti-phospholipid syndrome: a systematic review. Rheumatology (Oxford) 2015; 54:2042-50. [DOI: 10.1093/rheumatology/kev226] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Indexed: 11/13/2022] Open
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Dahm AEA, Tiscia G, Holmgren A, Jacobsen AF, Skretting G, Grandone E, Sandset PM. Genetic variations in the annexin A5 gene and the risk of pregnancy-related venous thrombosis. J Thromb Haemost 2015; 13:409-13. [PMID: 25495894 DOI: 10.1111/jth.12817] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 12/09/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Annexin A5 is a natural anticoagulant assumed to have thrombomodulary functions as it shields phospholipid layers from coagulation complexes. It was recently shown that the M2 haplotype within the annexin A5 gene (ANXA5) promoter reduces the transcriptional activity of the gene. In a previous report, the M2 haplotype was found to be associated with pregnancy-related venous thrombosis (VT). OBJECTIVES To investigate whether the M1 or M2 haplotypes or other genetic variations in ANXA5 are associated with pregnancy-related VT. PATIENTS/METHODS We investigated samples from 313 cases and 353 controls included in the VIP study, which is a case-control study of pregnancy-related VT. We analyzed tag single nucleotide polymorphisms (SNPs) selected from the CEU population (Utah Residents with Northern and Western European Ancestry) of HapMap and the M1 and the M2 haplotypes of the promoter. Odds ratios for VT were calculated for each haplotype with the wild type as the reference and for each tag SNP with the most common genotype as reference. RESULTS We did not find any association between genetic variants in ANXA5 and the risk of pregnancy related VT, but some of the genetic variants were not in Hardy-Weinberg equilibrium. CONCLUSION Neither the M1/M2 haplotypes nor the tag SNPs in ANXA5 were convincingly associated with pregnancy related VT, but other studies in this field are needed.
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Affiliation(s)
- A E A Dahm
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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Kolyada A, Karageorgos I, Mahlawat P, Beglova N. An A1-A1 mutant with improved binding and inhibition of β2GPI/antibody complexes in antiphospholipid syndrome. FEBS J 2015; 282:864-73. [PMID: 25546421 DOI: 10.1111/febs.13185] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 12/01/2014] [Accepted: 12/24/2014] [Indexed: 11/29/2022]
Abstract
β2 glycoprotein I (β2GPI) is the most common antigen for autoimmune antibodies in antiphospholipid syndrome (APS). Thrombosis is a clinical feature of APS. We created a molecule (A1-A1) that consists of two identical β2GPI-binding modules from ApoE receptor 2 (ApoER2). A1-A1 binds to β2GPI/antibody complexes, preventing their association with ApoER2 and anionic phospholipids, and reducing thrombus size in the mouse model of APS. Here, we describe a mutant of A1-A1 (mA1-A1ND) with improved affinity for β2GPI. mA1-A1ND inhibits the binding of β2GPI to cardiolipin in the presence of anti-β2GPI antibodies, and inhibits the binding to phospholipids in plasma samples of APS patients, affecting the clotting time. Reduction of the clotting time demonstrates the presence of soluble β2GPI/antibody complexes in patients' plasma. These complexes either already exist in patients' plasma or form rapidly in the proximity to phospholipids. All members of the low-density lipoprotein receptor family bind β2GPI. Modeling studies of A1 in a complex with domain V of β2GPI (β2GPI-DV) revealed two possible modes of interaction of a ligand-binding module from lipoprotein receptors with β2GPI-DV. In both orientations, the ligand-binding module interferes with binding of β2GPI to anionic phospholipids; however, it interacts with two different but overlapping sets of lysine residues in β2GPI-DV, depending on the orientation.
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Affiliation(s)
- Alexey Kolyada
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
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Belizna C. Hydroxychloroquine as an anti-thrombotic in antiphospholipid syndrome. Autoimmun Rev 2014; 14:358-62. [PMID: 25534016 DOI: 10.1016/j.autrev.2014.12.006] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 12/11/2014] [Indexed: 01/12/2023]
Abstract
Elective therapeutic approaches are required since recurrent thrombosis remains a major challenge in the management of antiphospholipid syndrome (APS) despite an efficient anticoagulation. Several data suggest that hydroxychloroquine (HCQ) could play a role in the prevention of thrombosis. The goal of this review is to point out the different aspects that could suggest the usefulness and the efficacy of HCQ for the prevention of thrombosis relapse in APS. By Medline research we collected important data dealing with potential anti-thrombotic effects of HCQ. The mechanisms of action of HCQ, and clinical and experimental data in systemic lupus erythematosus (SLE) and APS are discussed. As HCQ reduces the risk of thrombosis in both SLE patients and animal models of APS (1-7), and possibly decreases the titre of aPL [8], its beneficial role as a potential antithrombotic could be suggested.
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Affiliation(s)
- Cristina Belizna
- Internal Medicine Department, University Hospital Angers, 4 rue Larrey, 49000 Angers, France; INSERM 1083, Angers, France.
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Hiddink L, de Laat B, Derksen RHWM, de Groot PG, van Heerde WL. Annexin A5 haplotypes in the antiphospholipid syndrome. Thromb Res 2014; 135:417-9. [PMID: 25511578 DOI: 10.1016/j.thromres.2014.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 11/30/2014] [Accepted: 12/01/2014] [Indexed: 11/17/2022]
Affiliation(s)
- Larissa Hiddink
- Department of Laboratory Medicine, Laboratory of Hematology, Radboudumc, Nijmegen, the Netherlands
| | - Bas de Laat
- Department of Clinical Chemistry and Haematology, University Medical Centre, Utrecht, the Netherlands; Laboratory of the Pathophysiology of Thrombin Generation, Department of Biochemistry, CARIM, Maastricht University Medical Centre, the Netherlands
| | - Ronald H W M Derksen
- Department of Rheumatology and Clinical Immunology, University Medical Centre, Utrecht, the Netherlands
| | - Philip G de Groot
- Department of Clinical Chemistry and Haematology, University Medical Centre, Utrecht, the Netherlands
| | - Waander L van Heerde
- Department of Laboratory Medicine, Laboratory of Hematology, Radboudumc, Nijmegen, the Netherlands.
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Wu YY, V. Nguyen A, Wu XX, Loh M, Vu M, Zou Y, Liu Q, Guo P, Wang Y, Montgomery LL, Orlofsky A, Rand JH, Lin EY. Antiphospholipid Antibodies Promote Tissue Factor–Dependent Angiogenic Switch and Tumor Progression. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 184:3359-75. [DOI: 10.1016/j.ajpath.2014.07.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 07/22/2014] [Accepted: 07/29/2014] [Indexed: 12/30/2022]
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Upregulation of annexin A5 affects the biological behaviors of lung squamous carcinoma cells in vitro. CHINESE SCIENCE BULLETIN-CHINESE 2014. [DOI: 10.1007/s11434-014-0301-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pericleous C, Ripoll VM, Giles I, Ioannou Y. Laboratory tests for the antiphospholipid syndrome. Methods Mol Biol 2014; 1134:221-35. [PMID: 24497366 DOI: 10.1007/978-1-4939-0326-9_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Antiphospholipid syndrome (APS) is an autoimmune disorder characterized by recurrent vascular thrombosis (VT) and/or pregnancy morbidity (PM) in the presence of persistent antiphospholipid antibodies (aPL), detected by lupus anticoagulant (LA), anticardiolipin (aCL) antibody, and/or anti-β₂ glycoprotein I (aβ₂GPI) antibody assays. These aPL, considered to be diagnostic markers and pathogenic drivers of APS, are a heterogeneous group of antibodies directed against anionic phospholipids, phospholipid-binding plasma proteins, and phospholipid-protein complexes. Although APS is currently considered as a single disease, it presents with a wide range of clinical symptoms and biological characteristics. The clinical diagnosis of APS in a patient with symptoms and signs is dependent upon the presence of a persistently positive result in an aPL assay. The tests recommended for detecting aPL are the standardized enzyme-linked immunosorbent assay (ELISA) to detect aCL and aβ₂GPI and clotting assays for LA performed according to the guidelines of the International Society on Thrombosis and Haemostasis. This chapter describes the standard laboratory test for the diagnosis of APS discussing the clinical and theoretical aspects of LA, aCL, and aβ₂GPI assays.
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Abstract
Women with persistently circulating antiphospholipid antibodies (aPL) have a higher incidence of recurrent abortions, fetal losses, pre-eclampsia, and placental insufficiency. Current treatment of patients with antiphospholipid syndrome (APS) during pregnancy with heparin and aspirin can act by preventing clot formation and improving live birth rates, but other obstetric morbidities remain high, especially in patients with a history of thrombotic events. In addition to the classical thrombotic placental events, other factors involving inflammation and complement activation seem to play a role in certain complications. In this article, we will review how medications interfere in the pathogenic mechanisms of APS, discuss the impact of current recommended treatment on pregnancy morbidity, and analyze new promising therapies.
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