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Liu J, Zhang L, Tian Y, Wan S, Hu M, Song S, Zhang M, Zhou Q, Xia Y, Wang X. Protection by hydroxychloroquine prevents placental injury in obstetric antiphospholipid syndrome. J Cell Mol Med 2022; 26:4357-4370. [PMID: 35770338 PMCID: PMC9344817 DOI: 10.1111/jcmm.17459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 06/06/2022] [Accepted: 06/10/2022] [Indexed: 12/15/2022] Open
Abstract
Obstetric antiphospholipid syndrome (OAPS) is mediated by antiphospholipid antibodies (aPLs, and anti‐β2 glycoprotein I antibody is the main pathogenic antibody), and recurrent abortion, preeclampsia, foetal growth restriction and other placental diseases are the main clinical characteristics of placental pathological pregnancy. It is a disease that seriously threatens the health of pregnant women. Hydroxychloroquine (HCQ) was originally used as an anti‐malaria drug and has now shown benefit in refractory OAPS where conventional treatment has failed, with the expectation of providing protective clinical benefits for both the mother and foetus. However, its efficacy and mechanism of action are still unclear. After clinical data were collected to determine the therapeutic effect, human trophoblast cells in early pregnancy were prepared and treated with aPL. After the addition of HCQ, the proliferation, invasion, migration and tubule formation of the trophoblast cells were observed so that the therapeutic mechanism of HCQ on trophoblast cells could be determined. By establishing an obstetric APS mouse model similar to the clinical situation, we were able to detect the therapeutic effect of HCQ on pathological pregnancy. The normal function of trophoblast cells is affected by aPL. Antibodies reduce the ability of trophoblast cells to invade and migrate and can impair tubule formation, which are closely related to placental insufficiency. HCQ can partially reverse these side effects. In the OAPS mouse model, we found that HCQ prevented foetal death and reduced the incidence of pathological pregnancy. Therefore, HCQ can improve pregnancy outcomes and reverse the aPL inhibition of trophoblast disease. In OAPS, the use of HCQ needs to be seriously considered.
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Affiliation(s)
- Jing Liu
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Liting Zhang
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Yijia Tian
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Shuting Wan
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Min Hu
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Shasha Song
- Maternal and Child Health Care Hospital of Shandong Province, Jinan, China
| | - Meihua Zhang
- The Laboratory of Placenta-Related Diseases, Key Laboratory of Birth Regulation and Control Technology of National Health and Family Planning Commission of China, Jinan, China
| | - Qian Zhou
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Yu Xia
- Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xietong Wang
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, China.,Maternal and Child Health Care Hospital of Shandong Province, Jinan, China.,The Laboratory of Placenta-Related Diseases, Key Laboratory of Birth Regulation and Control Technology of National Health and Family Planning Commission of China, Jinan, China
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2
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Willis R, McDonnell TCR, Pericleous C, Gonzalez EB, Schleh A, Romay-Penabad Z, Giles IP, Rahman A. PEGylated Domain I of Beta-2-Glycoprotein I Inhibits Thrombosis in a Chronic Mouse Model of the Antiphospholipid Syndrome. Front Immunol 2022; 13:842923. [PMID: 35479096 PMCID: PMC9035797 DOI: 10.3389/fimmu.2022.842923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Antiphospholipid syndrome (APS) is an autoimmune disorder in which autoantibodies cause clinical effects of vascular thrombosis and pregnancy morbidity. The only evidence-based treatments are anticoagulant medications such as warfarin and heparin. These medications have a number of disadvantages, notably risk of haemorrhage. Therefore, there is a pressing need to develop new, more focused treatments that target the actual pathogenic disease process in APS. The pathogenic antibodies exert their effects by interacting with phospholipid-binding proteins, of which the most important is beta-2-glycoprotein I. This protein has five domains, of which the N-terminal Domain I (DI) is the main site for binding of pathogenic autoantibodies. We previously demonstrated bacterial expression of human DI and showed that this product could inhibit the ability of IgG from patients with APS (APS-IgG) to promote thrombosis in a mouse model. Since DI is a small 7kDa protein, its serum half-life would be too short to be therapeutically useful. We therefore used site-specific chemical addition of polyethylene glycol (PEG) to produce a larger variant of DI (PEG-DI) and showed that PEG-DI was equally effective as the non-PEGylated DI in inhibiting thrombosis caused by passive transfer of APS-IgG in mice. In this paper, we have used a mouse model that reflects human APS much more closely than the passive transfer of APS-IgG. In this model, the mice are immunized with human beta-2-glycoprotein I and develop endogenous anti-beta-2-glycoprotein I antibodies. When submitted to a pinch stimulus at the femoral vein, these mice develop clots. Our results show that PEG-DI inhibits production of thromboses in this model and also reduces expression of tissue factor in the aortas of the mice. No toxicity was seen in mice that received PEG-DI. Therefore, these results provide further evidence supporting possible efficacy of PEG-DI as a potential treatment for APS.
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Affiliation(s)
- Rohan Willis
- Internal Medicine, University of Texas Medical Branch, Galveston, TX, United States
| | - Thomas C. R. McDonnell
- Centre for Rheumatology Research, Division of Medicine, University College London, London, United Kingdom
| | - Charis Pericleous
- Centre for Rheumatology Research, Division of Medicine, University College London, London, United Kingdom
| | - Emilio B. Gonzalez
- Internal Medicine, University of Texas Medical Branch, Galveston, TX, United States
| | - Alvaro Schleh
- Internal Medicine, University of Texas Medical Branch, Galveston, TX, United States
| | - Zurina Romay-Penabad
- Internal Medicine, University of Texas Medical Branch, Galveston, TX, United States
| | - Ian P. Giles
- Centre for Rheumatology Research, Division of Medicine, University College London, London, United Kingdom
| | - Anisur Rahman
- Centre for Rheumatology Research, Division of Medicine, University College London, London, United Kingdom
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3
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Cohen H, Cuadrado MJ, Erkan D, Duarte-Garcia A, Isenberg DA, Knight JS, Ortel TL, Rahman A, Salmon JE, Tektonidou MG, Williams DJ, Willis R, Woller SC, Andrade D. 16th International Congress on Antiphospholipid Antibodies Task Force Report on Antiphospholipid Syndrome Treatment Trends. Lupus 2020; 29:1571-1593. [PMID: 33100166 PMCID: PMC7658424 DOI: 10.1177/0961203320950461] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 07/24/2020] [Indexed: 12/13/2022]
Abstract
Antiphospholipid syndrome (APS), an acquired autoimmune thrombophilia, is characterised by thrombosis and/or pregnancy morbidity in association with persistent antiphospholipid antibodies. The 16th International Congress on Antiphospholipid Antibodies Task Force on APS Treatment Trends reviewed the current status with regard to existing and novel treatment trends for APS, which is the focus of this Task Force report. The report addresses current treatments and developments since the last report, on the use of direct oral anticoagulants in patients with APS, antiplatelet agents, adjunctive therapies (hydroxychloroquine, statins and vitamin D), targeted treatment including rituximab, belimumab, and anti-TNF agents, complement inhibition and drugs based on peptides of beta-2-glycoprotein I. In addition, the report summarises potential new players, including coenzyme Q10, adenosine receptor agonists and adenosine potentiation. In each case, the report provides recommendations for clinicians, based on the current state of the art, and suggests a clinical research agenda. The initiation and development of appropriate clinical studies requires a focus on devising suitable outcome measures, including a disease activity index, an optimal damage index, and a specific quality of life index.
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Affiliation(s)
- Hannah Cohen
- Haemostasis Research Unit, Department of Haematology, University
College London, London, UK
- University College London Hospitals NHS Foundation Trust,
London, UK
| | - Maria J Cuadrado
- Rheumatology Department, Clinica Universidad de Navarra, Madrid,
Spain
| | - Doruk Erkan
- Barbara Volcker Center for Women and Rheumatic Disease, Hospital
for Special Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Ali Duarte-Garcia
- Division of Rheumatology, Department of Internal Medicine, Mayo
Clinic, Rochester, Minnesota, USA
- Robert D. and Patricia E. Kern Center for the Science of Health
Care Delivery, Mayo Clinic, Rochester, Minnesota, USA
| | - David A Isenberg
- University College London Hospitals NHS Foundation Trust,
London, UK
- Centre for Rheumatology, Division of Medicine, University
College London, London, UK
| | - Jason S Knight
- Division of Rheumatology, University of Michigan, Ann Arbor,
Michigan, USA
| | - Thomas L Ortel
- Division of Hematology, Department of Medicine, and Department
of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Anisur Rahman
- Centre for Rheumatology, Division of Medicine, University
College London, London, UK
| | - Jane E Salmon
- Division of Rheumatology, Hospital for Special surgery, Weill
Cornell Medicine, New York, NY, USA
| | - Maria G Tektonidou
- First Department of Propaedeutic Internal Medicine, National
and Kapodistrian University of Athens, Athens, Greece
| | - David J Williams
- University College London Hospitals NHS Foundation Trust,
London, UK
- UCL EGA Institute for Women’s Health, University College
London, London, UK
| | - Rohan Willis
- Antiphospholipid Standardization Laboratory, University of
Texas Medical Branch, Galveston, TX, USA
| | - Scott C Woller
- Department of Medicine, Intermountain Medical Center, Murray
UT; Division of General Internal Medicine, University of Utah School of
Medicine, Salt Lake City, UT, USA
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McDonnell T, Wincup C, Buchholz I, Pericleous C, Giles I, Ripoll V, Cohen H, Delcea M, Rahman A. The role of beta-2-glycoprotein I in health and disease associating structure with function: More than just APS. Blood Rev 2020; 39:100610. [PMID: 31471128 PMCID: PMC7014586 DOI: 10.1016/j.blre.2019.100610] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 08/09/2019] [Accepted: 08/15/2019] [Indexed: 12/22/2022]
Abstract
Beta-2-Glycoprotein I (β2GPI) plays a number of essential roles throughout the body. β2GPI, C-reactive protein and thrombomodulin are the only three proteins that possess the dual capability to up and down regulate the complement and coagulation systems depending upon external stimulus. Clinically, β2GPI is the primary antigen in the autoimmune condition antiphospholipid syndrome (APS), which is typically characterised by pregnancy morbidity and vascular thrombosis. This protein is also capable of adopting at least two distinct structural forms, but it has been argued that several other intermediate forms may exist. Thus, β2GPI is a unique protein with a key role in haemostasis, homeostasis and immunity. In this review, we examine the genetics, structure and function of β2GPI in the body and how these factors may influence its contribution to disease pathogenesis. We also consider the clinical implications of β2GPI in the diagnosis of APS and as a potentially novel therapeutic target.
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Affiliation(s)
- Thomas McDonnell
- Rheumatology, Division of Medicine, Rayne Institute, University College London, UK.
| | - Chris Wincup
- Rheumatology, Division of Medicine, Rayne Institute, University College London, UK
| | - Ina Buchholz
- Nanostructure Group, Institute of Biochemistry, University of Greifswald, Germany
| | - Charis Pericleous
- Imperial College London, Imperial College Vascular Sciences, National Heart & Lung Institute, ICTEM, Hammersmith Campus, Du Cane Road, London, UK
| | - Ian Giles
- Rheumatology, Division of Medicine, Rayne Institute, University College London, UK
| | - Vera Ripoll
- Rheumatology, Division of Medicine, Rayne Institute, University College London, UK
| | - Hannah Cohen
- Department of Haematology, University College London Hospitals NHS Foundation Trust, London, UK
| | - Mihaela Delcea
- Nanostructure Group, Institute of Biochemistry, University of Greifswald, Germany
| | - Anisur Rahman
- Rheumatology, Division of Medicine, Rayne Institute, University College London, UK
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Albay A, Artim-Esen B, Pericleous C, Wincup C, Giles I, Rahman A, McDonnell T. Domain I of β2GPI is capable of blocking serum IgA antiphospholipid antibodies binding in vitro: an effect enhanced by PEGylation. Lupus 2019; 28:893-897. [PMID: 31126213 PMCID: PMC6567316 DOI: 10.1177/0961203319851571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objectives This study aims to inhibit antiphospholipid syndrome (APS) serum derived IgA anti-beta-2-glycoprotein I (aβ2GPI) binding using Domain I (DI). Methods Serum from 13 APS patients was tested for IgA aβ2GPI and Anti-Domain I. Whole IgA was purified by peptide M affinity chromatography from positive serum samples. Serum was tested for IgA aβ2GPI binding in the presence and absence of either DI or of two biochemically modified variants containing either 20 kDa of poly(ethylene glycol) (PEG) or 40 kDa of PEG. Results Significant inhibition with DI was possible with average inhibition of 23% (N = 13). Further inhibitions using 20 kDa PEG-DI and 40 kDa PEG-DI variants showed significant inhibition (p = 0.0001) with both the 40 kDa PEG-DI and 20 kDa PEG-DI variants showing increased inhibition compared with DI alone (p = 0.0001 and p = 0.001, n = 10). Conclusions Inhibition of IgA aβ2GPI by DI is possible and can be enhanced by biochemical modification in a subset of patients.
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Affiliation(s)
- A Albay
- 1 Centre for Rheumatology Research, Division of Medicine, University College London, Department of Medicine, Rayne Institute, London, UK
| | - B Artim-Esen
- 2 Istanbul University, Istanbul Faculty of Medicine, Department of Internal Medicine, Division of Rheumatology, Turkey
| | - C Pericleous
- 3 Imperial College London, Imperial College Vascular Sciences, National Heart & Lung Institute, ICTEM, London, UK
| | - C Wincup
- 1 Centre for Rheumatology Research, Division of Medicine, University College London, Department of Medicine, Rayne Institute, London, UK
| | - I Giles
- 1 Centre for Rheumatology Research, Division of Medicine, University College London, Department of Medicine, Rayne Institute, London, UK
| | - A Rahman
- 1 Centre for Rheumatology Research, Division of Medicine, University College London, Department of Medicine, Rayne Institute, London, UK
| | - T McDonnell
- 1 Centre for Rheumatology Research, Division of Medicine, University College London, Department of Medicine, Rayne Institute, London, UK
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