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Fang L, Wang Z, Song HH, Zhou YF, Chen C, Yan YP, Qiu W. Hydroxychloroquine fails to attenuate lesion development in a mouse model of neuromyelitis optica. CNS Neurosci Ther 2018; 24:842-845. [PMID: 29761646 DOI: 10.1111/cns.12975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Ling Fang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhen Wang
- Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Huan-Huan Song
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yi-Fan Zhou
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chen Chen
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ya-Ping Yan
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Wei Qiu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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52
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Ye SL, Gu XK, Tao LY, Cong JM, Wang YQ. Efficacy of Different Treatment Regimens for Antiphospholipid Syndrome-related Recurrent Spontaneous Abortion. Chin Med J (Engl) 2018; 130:1395-1399. [PMID: 28584200 PMCID: PMC5463467 DOI: 10.4103/0366-6999.207471] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Background: Antiphospholipid syndrome (APS)-related immune factors are considered as an important cause of recurrent spontaneous abortion (RSA). Anticoagulant and anti-inflammatory treatments are believed to effectively improve adverse pregnancy outcomes by affecting the abnormal autoimmune response of the maternal-fetal interface. The aim of this study was to observe the clinical characteristics and treatment outcomes of anticoagulant regimens and anti-inflammatory plus anticoagulation regimens for APS-related RSA. Methods: APS-related RSA cases from September 2011 to September 2016 at Peking University Third Hospital were retrospectively analyzed. The patients were assigned to study group (anti-inflammation plus anticoagulation) and control group (simple anticoagulation). The incidence of repeat abortion, the incidence of placental dysfunction, the gestational weeks of pregnancy, and the mean weight of the fetus were observed. Results: The pregnancy and neonatal outcome indicators of the repeat pregnancy loss rate (11.11% vs. 22.70%), placental dysfunction-related diseases (6.35% vs. 15.60%), the mean birth weight of infants born after 24 weeks gestation (3152.41 ± 844.67 g vs. 2765.76 ± 816.40 g), full-term delivery weight (3456.28 ± 419.79 g vs. 3076.18 ± 518.79 g), the proportions of low birth weight infants (12.70% vs. 21.98%), and small for gestational age (6.35% vs. 14.18%) differed significantly between the study and control groups (all P < 0.05). The incidence of preterm delivery, term delivery, and stillbirth was not significantly different between the two groups, and there was no significant difference between the study and control groups in gestational age at birth (37.6 ± 3.3 weeks vs. 36.9 ± 3.2 weeks; P > 0.05). Conclusion: The anti-inflammatory and anticoagulation regimen is more effective than the simple anticoagulation regimen in the treatment of APS recurrent abortion.
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Affiliation(s)
- Sheng-Long Ye
- Department of Obstetrics and Gynaecology, Peking University Third Hospital, Beijing 100191, China
| | - Xun-Ke Gu
- Department of Obstetrics and Gynaecology, Peking University Third Hospital, Beijing 100191, China
| | - Li-Yuan Tao
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China
| | - Ji-Mei Cong
- Department of Obstetrics and Gynaecology, Peking University Third Hospital, Beijing 100191, China
| | - Yong-Qing Wang
- Department of Obstetrics and Gynaecology, Peking University Third Hospital, Beijing 100191, China
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Abstract
The number of peer-reviewed articles published during the 2016 solar year and retrieved using the "autoimmunity" key word remained stable while gaining a minimal edge among the immunology articles. Nonetheless, the quality of the publications has been rising significantly and, importantly, acquisitions have become available through scientific journals dedicated to immunology or autoimmunity. Major discoveries have been made in the fields of systemic lupus erythematosus, rheumatoid arthritis, autoimmunity of the central nervous system, vasculitis, and seronegative spondyloarthrithritides. Selected examples include the role of IL17-related genes and long noncoding RNAs in systemic lupus erythematosus or the effects of anti-pentraxin 3 (PTX3) in the treatment of this paradigmatic autoimmune condition. In the case of rheumatoid arthritis, there have been reports of the role of induced regulatory T cells (iTregs) or fibrocytes and T cell interactions with exciting implications. The large number of studies dealing with neuroimmunology pointed to Th17 cells, CD56(bright) NK cells, and low-level TLR2 ligands as involved in multiple sclerosis, along with a high salt intake or the micriobiome-derived Lipid 654. Lastly, we focused on the rare vasculitides to which numerous studies were devoted and suggested that unsuspected cell populations, including monocytes, mucosal-associated invariant T cells, and innate lymphoid cells, may be crucial to ANCA-associated manifestations. This brief and arbitrary discussion of the findings published in 2016 is representative of a promising background for developments that will enormously impact the work of laboratory scientists and physicians at an exponential rate.
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Affiliation(s)
- Carlo Selmi
- Division of Rheumatology and Clinical Immunology, Humanitas Research Hospital, via A. Manzoni 56, 20089, Rozzano, Milan, Italy.
- Department of Medical Biotechnologies and Translational Medicine (BIOMETRA), University of Milan, Milan, Italy.
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Abstract
PURPOSE OF REVIEW Antiphospholipid syndrome (APS) is a leading acquired cause of thrombosis and pregnancy loss. Upon diagnosis (which is unlikely to be made until at least one morbid event has occurred), anticoagulant medications are typically prescribed in an attempt to prevent future events. This approach is not uniformly effective and does not prevent associated autoimmune and inflammatory complications. The goal of this review is to update clinicians and scientists on mechanistic and clinically relevant studies from the past 18 months, which have especially focused on inflammatory aspects of APS pathophysiology. RECENT FINDINGS How antiphospholipid antibodies leverage receptors and signaling pathways to activate cells is being increasingly defined. Although established mediators of disease pathogenesis (like endothelial cells and the complement system) continue to receive intensive study, emerging concepts (such as the role of neutrophils) are also receiving increasing attention. In-vivo animal studies and small clinical trials are demonstrating how repurposed medications (hydroxychloroquine, statins, and rivaroxaban) may have clinical benefit in APS, with these concepts importantly supported by mechanistic data. SUMMARY As anticoagulant medications are not uniformly effective and do not comprehensively target the underlying pathophysiology of APS, there is a continued need to reveal the inflammatory aspects of APS, which may be modulated by novel and repurposed therapies.
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55
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Cavazzana I, Andreoli L, Limper M, Franceschini F, Tincani A. Update on Antiphospholipid Syndrome: Ten Topics in 2017. Curr Rheumatol Rep 2018. [DOI: 10.1007/s11926-018-0718-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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56
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Dobrowolski C, Erkan D. Treatment of antiphospholipid syndrome beyond anticoagulation. Clin Immunol 2018; 206:53-62. [PMID: 29510235 DOI: 10.1016/j.clim.2018.03.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 03/02/2018] [Accepted: 03/02/2018] [Indexed: 10/17/2022]
Abstract
Antiphospholipid syndrome (APS) is a systemic autoimmune disorder marked by thrombosis and/or pregnancy morbidity in the presence of antiphospholipid antibodies (aPL). At the present time, treatment is primarily focused on anticoagulation. However, there is increasing awareness of the mechanisms involved in APS pathogenesis, which has led to the trial of novel therapies targeting those mechanisms. Following a brief review of the etiopathogenesis of and current management strategies in APS, this paper focuses on the evidence for these potential, targeted APS treatments, e.g., hydroxychloroquine, statins, rituximab, belimumab, eculizumab, defibrotide, sirolimus, and peptide therapy.
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Affiliation(s)
| | - Doruk Erkan
- Barbara Volcker Center for Women and Rheumatic Diseases, Hospital for Special Surgery, Weill Cornell Medicine, New York, NY, USA.
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57
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Chighizola CB, Andreoli L, Gerosa M, Tincani A, Ruffatti A, Meroni PL. The treatment of anti-phospholipid syndrome: A comprehensive clinical approach. J Autoimmun 2018; 90:1-27. [PMID: 29449131 DOI: 10.1016/j.jaut.2018.02.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 02/06/2018] [Indexed: 01/02/2023]
Abstract
Anti-phospholipid syndrome (APS) is an acquired pro-thrombotic autoimmune disease that predisposes to thrombotic events and/or obstetric complications, in the persistent presence of anti-phospholipid antibodies (aPL). Life long moderate-intensity anticoagulation is the option of choice for aPL-positive patients with a previous thrombosis; critical issues concern the management of those with a history of arterial event due to the high rate of recurrence. Alternatives comprise anti-platelet agents and high-intensity anticoagulation. Low dose aspirin (LDASA) and low molecular weight heparin provide the mainstay of the treatment of obstetric APS, allowing a birth rate in 70% of cases. The management of refractory APS, thrombotic as well as obstetric, is highly debated, but an increasing burden of evidence points towards the beneficial effects of multiple treatments. Similarly, a management envisaging multiple drugs (anticoagulation, steroids, plasma exchange and/or intravenous immunoglobulins) is the most effective approach in catastrophic APS. Asymptomatic aPL carriers are at higher risk of thrombotic and obstetric complications compared to the general population, thus potentially benefitting of a pharmacological intervention. LDASA and hydroxychloroquine can be considered as options, in particular in case of high risk aPL profile, concomitant cardiovascular risk factors or associated autoimmune disease. APS is apparently a simple condition, but its multifaceted nature requires a complex and tailored treatment.
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Affiliation(s)
- Cecilia Beatrice Chighizola
- Department of Clinical Sciences and Community Health, University of Milan, Via Festa del Perdono 7, 20122, Milan, Italy; Experimental Laboratory of Immunological and Rheumatologic Researches, IRCCS Istituto Auxologico Italiano, Via Zucchi 18, 20095 Cusano Milanino, Milan, Italy; Allergology, Clinical Immunology and Rheumatology, Piazzale Brescia 20, 20149, Milan, Italy.
| | - Laura Andreoli
- Rheumatology and Clinical Immunology, Spedali Civili of Brescia, Department of Clinical and Experimental Sciences, University of Brescia, Piazzale Spedali Civili 1, 25123, Brescia, Italy
| | - Maria Gerosa
- Department of Clinical Sciences and Community Health, University of Milan, Via Festa del Perdono 7, 20122, Milan, Italy; Experimental Laboratory of Immunological and Rheumatologic Researches, IRCCS Istituto Auxologico Italiano, Via Zucchi 18, 20095 Cusano Milanino, Milan, Italy; Department of Rheumatology, ASST Istituto Gaetano Pini & CTO, Piazza Cardinal Ferrari, 1 20122, Milan, Italy
| | - Angela Tincani
- Rheumatology and Clinical Immunology, Spedali Civili of Brescia, Department of Clinical and Experimental Sciences, University of Brescia, Piazzale Spedali Civili 1, 25123, Brescia, Italy
| | - Amelia Ruffatti
- Rheumatology Unit, Department of Medicine, University of Padua, Via Giustiniani 2, 35128, Padua, Italy
| | - Pier Luigi Meroni
- Experimental Laboratory of Immunological and Rheumatologic Researches, IRCCS Istituto Auxologico Italiano, Via Zucchi 18, 20095 Cusano Milanino, Milan, Italy
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Abstract
Antiphospholipid syndrome (APS) is an autoimmune disease characterized by the presence of antiphospholipid antibodies, such as lupus anticoagulant, anticardiolipin antibodies and anti-β2-glycoprotein 1 antibodies. APS can present with a variety of clinical phenotypes, including thrombosis in the veins, arteries and microvasculature as well as obstetrical complications. The pathophysiological hallmark is thrombosis, but other factors such as complement activation might be important. Prevention of thrombotic manifestations associated with APS includes lifestyle changes and, in individuals at high risk, low-dose aspirin. Prevention and treatment of thrombotic events are dependent mainly on the use of vitamin K antagonists. Immunosuppression and anticomplement therapy have been used anecdotally but have not been adequately tested. Pregnancy morbidity includes unexplained recurrent early miscarriage, fetal death and late obstetrical manifestation such as pre-eclampsia, premature birth or fetal growth restriction associated with placental insufficiency. Current treatment to prevent obstetrical morbidity is based on low-dose aspirin and/or low-molecular-weight heparin and has improved pregnancy outcomes to achieve successful live birth in >70% of pregnancies. Although hydroxychloroquine and pravastatin might further improve pregnancy outcomes, prospective clinical trials are required to confirm these findings.
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Schreiber K, Breen K, Parmar K, Rand JH, Wu XX, Hunt BJ. The effect of hydroxychloroquine on haemostasis, complement, inflammation and angiogenesis in patients with antiphospholipid antibodies. Rheumatology (Oxford) 2017; 57:120-124. [PMID: 29045759 DOI: 10.1093/rheumatology/kex378] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Indexed: 11/13/2022] Open
Abstract
Objectives HCQ has been described as having a beneficial effect in patients with APS but its mechanism of action is unclear. We hypothesized that HCQ may have effects on subnormal angiogenesis, inflammation and haemostatic biomarkers seen in APS. The aim of our study was to assess laboratory markers [annexin A5 (AnxA5) anticoagulant activity, tissue factor (TF) levels, thromboelastography (TEG), CRP, Bb, C3a and VEGF] in HCQ-naïve patients with aPL at baseline and after commencing HCQ. Methods Twenty-two patients with aPL [20 female, 2 male, median age 55 (range 18-70) years] had blood taken pre- and 3 months after starting HCQ 200 mg daily. Results Soluble TF levels were significantly reduced comparing baseline and 3 months after HCQ commencement [401.8 (152.8) vs 300.9 (108) pg/ml (P = 0.010)]. No significant changes were found in the following [reported as pre- and post-HCQ commencement, mean (s.d.)]: AnxA5 anticoagulant ratio [187.1 (29.5) vs 193 (31) (P = 0.157)], anti-domain1 β2 glycoprotein1 IgG activity [1.8 (2) vs 1.2 (1.4) μg/ml (P = 0.105)], complement C3a-des-Arg [147.8 (84.5) vs 154.4 (88.1) ng/ml (P = 0.905)], complement Bb [1.3 (0.7) vs 1.1 (0.7) μg/ml (P = 0.422)], VEGF [68.8 (40) vs 59.4 (19.6) pg/ml (P = 0.454)] and CRP [7 (3.5) vs 7 (3.9) μg/ml (P = 0.917)]. TEG results including TEG reaction time, achievement of clot firmness, TEG maximum amplitude and TEG percentage lysis 30 and 60 min after maximum amplitude showed no significant difference. Conclusion HCQ significantly reduced soluble TF levels in patients with aPL. No significant change was observed in AnxA5 activity, anti-domain 1 IgG activity, TEG, CRP, complement Bb and C3a-des-Arg, and VEGF. Further studies of a larger patient cohort are needed.
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Affiliation(s)
- Karen Schreiber
- Thrombosis & Haemophilia Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Department of Rheumatology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Karen Breen
- Thrombosis & Haemophilia Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Kiran Parmar
- Thrombosis & Haemophilia Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Jacob H Rand
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Xiao-Xuan Wu
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Beverley J Hunt
- Thrombosis & Haemophilia Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,King's College London, London, UK
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60
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Dahan S, Segal Y, Watad A, Azrielant S, Shemer A, Maymon D, Stroev YI, Sobolevskaya PA, Korneva EA, Blank M, Gilburd B, Shovman O, Amital H, Ehrenfeld M, Tanay A, Kivity S, Pras E, Chapman J, Damoiseaux J, Cervera R, Putterman C, Shapiro I, Mouthon L, Perricone R, Bizzaro N, Koren O, Riemekasten G, Chereshnev VA, Mazurov VI, Goloviznin M, Gurevich V, Churilov LP, Shoenfeld Y. Novelties in the field of autoimmunity – 1st Saint Petersburg congress of autoimmunity, the bridge between east and west. Autoimmun Rev 2017; 16:1175-1184. [DOI: 10.1016/j.autrev.2017.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 07/30/2017] [Indexed: 12/16/2022]
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61
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Girardi G. Pravastatin to treat and prevent preeclampsia. Preclinical and clinical studies. J Reprod Immunol 2017; 124:15-20. [DOI: 10.1016/j.jri.2017.09.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 09/26/2017] [Accepted: 09/26/2017] [Indexed: 12/19/2022]
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62
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Girardi G. Complement activation, a threat to pregnancy. Semin Immunopathol 2017; 40:103-111. [PMID: 28900713 DOI: 10.1007/s00281-017-0645-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 08/03/2017] [Indexed: 12/11/2022]
Abstract
Pregnancy poses a challenge for the immune systems of placental mammals. As fetal tissues are semi-allogeneic and alloantibodies that commonly develop in the mother, the fetus and the placenta might be subject to complement-mediated immune attack with the potential risk of adverse pregnancy outcomes. Here, I describe how the use of animal models was pivotal in demonstrating that complement inhibition at the fetomaternal interface is essential for a successful pregnancy. Studies in animals also helped the identification of uncontrolled complement activation as a crucial effector in the pathogenesis of recurrent miscarriages, intrauterine growth restriction, preeclampsia, and preterm birth. Clinical studies employing complement biomarkers in plasma and urine showed an association between dysregulation of the complement system and adverse pregnancy outcomes. A better understanding of the role of the complement system in pregnancy complications will allow a rational approach to manipulate its activation as a potential therapeutic strategy with the goal of protecting pregnancies and improving long-term outcomes for mother and child.
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Affiliation(s)
- Guillermina Girardi
- Pregnancy Laboratory, Department of Women and Children's Health, The Rayne Institute, St Thomas' Hospital, King's College London, London, SE1 7EH, UK.
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63
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Faissner S, Mahjoub Y, Mishra M, Haupeltshofer S, Hahn JN, Gold R, Koch M, Metz LM, Ben-Hur T, Yong VW. Unexpected additive effects of minocycline and hydroxychloroquine in models of multiple sclerosis: Prospective combination treatment for progressive disease? Mult Scler 2017; 24:1543-1556. [DOI: 10.1177/1352458517728811] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Most multiple sclerosis (MS) patients succumb to a progressive phenotype. Continued lymphocyte activity in the brain, microglia-mediated injury, iron deposition, and oxidative stress are characteristics of progressive MS. Objective: As minocycline and hydroxychloroquine have been shown to inhibit microglia, we evaluated their effects on other outcomes relevant for progression. Methods: Medications were evaluated in culture and in mice with acute and chronic experimental autoimmune encephalomyelitis (EAE). Results: Both medications individually reduced iron neurotoxicity and a combination effect was not observed. Hydroxyl radical scavenging activity was manifested by minocycline only. Minocycline reduced T-cell proliferation more prominently than hydroxychloroquine; an aggregate effect occurred at low but not high concentrations. B-cell proliferation was mitigated to a greater extent by hydroxychloroquine and an additive effect was not evident. In EAE, suboptimal doses of minocycline and hydroxychloroquine individually delayed onset of clinical signs, while their combination suppressed clinical manifestations until treatment was stopped. In Biozzi ABH mice, a model of progressive MS, the chronic phase was beneficially altered using the combination. Conclusion: While minocycline and hydroxychloroquine did not manifest additive effects in most culture assays, their combination at suboptimal doses in EAE unexpectedly exceeded their individual activity. Minocycline and hydroxychloroquine combined are candidate treatments for progressive MS.
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Affiliation(s)
- Simon Faissner
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada/St. Josef-Hospital and Department of Neurology, Ruhr-University Bochum, Bochum, Germany
| | - Yasamin Mahjoub
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Manoj Mishra
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Steffen Haupeltshofer
- St. Josef-Hospital and Department of Neurology, Ruhr-University Bochum, Bochum, Germany
| | - Jennifer Nancy Hahn
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Ralf Gold
- St. Josef-Hospital and Department of Neurology, Ruhr-University Bochum, Bochum, Germany
| | - Marcus Koch
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Luanne M Metz
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Tamir Ben-Hur
- Department of Neurology, Hadassah Medical Center and The Hebrew University of Jerusalem, Jerusalem, Israel
| | - V Wee Yong
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
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64
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Sciascia S, Amigo MC, Roccatello D, Khamashta M. Diagnosing antiphospholipid syndrome: 'extra-criteria' manifestations and technical advances. Nat Rev Rheumatol 2017; 13:548-560. [PMID: 28769114 DOI: 10.1038/nrrheum.2017.124] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
First described in the early 1980s, antiphospholipid syndrome (APS) is a unique form of acquired autoimmune thrombophilia in which patients present with clinical features of recurrent thrombosis and pregnancy morbidity and persistently test positive for the presence of antiphospholipid antibodies (aPL). At least one clinical (vascular thrombosis or pregnancy morbidity) and one lab-based (positive test result for lupus anticoagulant, anticardiolipin antibodies and/or anti-β2-glycoprotein 1 antibodies) criterion have to be met for a patient to be classified as having APS. However, the clinical spectrum of APS encompasses additional manifestations that can affect many organs and cannot be explained exclusively by patients being in a prothrombotic state; clinical manifestations not listed in the classification criteria (known as extra-criteria manifestations) include neurologic manifestations (chorea, myelitis and migraine), haematologic manifestations (thrombocytopenia and haemolytic anaemia), livedo reticularis, nephropathy and valvular heart disease. Increasingly, research interest has focused on the development of novel assays that might be more specific for APS than the current aPL tests. This Review focuses on the current classification criteria for APS, presenting the role of extra-criteria manifestations and lab-based tests. Diagnostic approaches to difficult cases, including so-called seronegative APS, are also discussed.
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Affiliation(s)
- Savino Sciascia
- Centre of Research of Immunopathology and Rare Diseases (CMID), Coordinating Centre of Piedmont and Aosta Valley Network for Rare Diseases, Department of Clinical and Biological Sciences, St Giovanni Bosco Hospital and the University of Turin, Piazza del Donatore di Sangue 3, 10154 Turin, Italy.,SCDU Nephrology and Dialysis, Department of Clinical and Biological Sciences, St Giovanni Bosco Hospital and the University of Turin, Piazza del Donatore di Sangue 3, 10154 Turin, Italy
| | - Mary-Carmen Amigo
- Service of Rheumatology, ABC Medical Center, Sur 136 No. 116, Colonia Las Américas, Mexico City 01220, Mexico
| | - Dario Roccatello
- Centre of Research of Immunopathology and Rare Diseases (CMID), Coordinating Centre of Piedmont and Aosta Valley Network for Rare Diseases, Department of Clinical and Biological Sciences, St Giovanni Bosco Hospital and the University of Turin, Piazza del Donatore di Sangue 3, 10154 Turin, Italy.,SCDU Nephrology and Dialysis, Department of Clinical and Biological Sciences, St Giovanni Bosco Hospital and the University of Turin, Piazza del Donatore di Sangue 3, 10154 Turin, Italy
| | - Munther Khamashta
- Department of Rheumatology, Dubai Hospital, PO box 7272, Dubai, UAE.,Graham Hughes Lupus Research Laboratory, Division of Women's Health, King's College London, The Rayne Institute, 4th Floor Lambeth Wing, St Thomas' Hospital, London SE1 7EH, UK
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65
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Soh MC, Nelson-Piercy C, Westgren M, McCowan L, Pasupathy D. Do adverse pregnancy outcomes contribute to accelerated cardiovascular events seen in young women with systemic lupus erythematosus? Lupus 2017; 26:1351-1367. [PMID: 28728509 DOI: 10.1177/0961203317719146] [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] [Indexed: 12/11/2022]
Abstract
Cardiovascular events (CVEs) are prevalent in patients with systemic lupus erythematosus (SLE), and it is the young women who are disproportionately at risk. The risk factors for accelerated cardiovascular disease remain unclear, with multiple studies producing conflicting results. In this paper, we aim to address both traditional and SLE-specific risk factors postulated to drive the accelerated vascular disease in this cohort. We also discuss the more recent hypothesis that adverse pregnancy outcomes in the form of maternal-placental syndrome and resultant preterm delivery could potentially contribute to the CVEs seen in young women with SLE who have fewer traditional cardiovascular risk factors. The pathophysiology of how placental-mediated vascular insufficiency and hypoxia (with the secretion of placenta-like growth factor (PlGF) and soluble fms-tyrosine-like kinase-1 (sFlt-1), soluble endoglin (sEng) and other placental factors) work synergistically to damage the vascular endothelium is discussed. Adverse pregnancy outcomes ultimately are a small contributing factor to the complex pathophysiological process of cardiovascular disease in patients with SLE. Future collaborative studies between cardiologists, obstetricians, obstetric physicians and rheumatologists may pave the way for a better understanding of a likely multifactorial aetiological process.
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Affiliation(s)
- M C Soh
- 1 Women's Health Academic Centre, King's College London, United Kingdom.,3 Faculty of Medical and Health Science, University of Auckland, New Zealand
| | - C Nelson-Piercy
- 1 Women's Health Academic Centre, King's College London, United Kingdom
| | - M Westgren
- 2 Department of Clinical Science, Karolinska Institutet, Sweden
| | - L McCowan
- 3 Faculty of Medical and Health Science, University of Auckland, New Zealand.,4 National Women's Health, South Auckland Clinical School of Medicine and Counties Manukau Health, Auckland, New Zealand
| | - D Pasupathy
- 1 Women's Health Academic Centre, King's College London, United Kingdom.,5 Biomedical Research Centre at Guy's & St Thomas's NHS Foundation Trust and King's College London, United Kingdom
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66
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Abrahams VM, Chamley LW, Salmon JE. Emerging Treatment Models in Rheumatology: Antiphospholipid Syndrome and Pregnancy: Pathogenesis to Translation. Arthritis Rheumatol 2017; 69:1710-1721. [PMID: 28445926 DOI: 10.1002/art.40136] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 04/20/2017] [Indexed: 02/06/2023]
Affiliation(s)
| | | | - Jane E Salmon
- Hospital for Special Surgery, Weill Cornell Medicine, New York, New York
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Rand JH, Wu XX, Wolgast LR, Lei V, Conway EM. A novel 2-stage approach that detects complement activation in patients with antiphospholipid antibody syndrome. Thromb Res 2017. [PMID: 28628799 DOI: 10.1016/j.thromres.2017.06.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION The antiphospholipid syndrome (APS) is marked by autoantibodies that recognize anionic phospholipids in a cofactor-dependent manner. A role for complement has been implicated in the pathophysiology, however, elevations of complement activation markers have not been consistently demonstrated in clinical studies. We therefore designed a proof-of-principle study to determine whether complement activation might be detectable in APS by first exposing plasmas to phospholipid vesicles. METHODS We examined complement activation markers in patients with APS, non-APS thrombosis, systemic lupus erythematosus, cancer, patients with antiphospholipid antibodies without thrombosis (APL) and healthy controls. Direct measurements of plasma C5a and sC5b-9 levels were compared to levels that were generated in normal serum by phospholipid vesicles that had been pre-incubated with the same plasmas. We then determined the effects of the C5 inhibitor, eculizumab, examined the complement pathways involved, and determined whether the effects could be reproduced with purified IgGs and β2-glycoprotein I (β2GPI). RESULTS Plasma levels of C5a and sC5b-9 were higher, but not significantly increased in APS patients compared to healthy controls. In contrast, phospholipid vesicles pre-incubated with APS plasmas generated significantly higher levels than healthy controls and the other groups, except for APL patients. Complement activation was abrogated by addition of eculizumab. The results with substrate sera indicated that the alternative and classical/lectin pathways were involved. The results were reproducible with purified IgGs and β2GPI. CONCLUSION This proof-of-principle study confirms a role for complement in APS and opens the possibility of monitoring complement activation by including phospholipid vesicles in assay systems.
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Affiliation(s)
- Jacob H Rand
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY 10065, United States
| | - Xiao-Xuan Wu
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY 10065, United States
| | - Lucia R Wolgast
- Department of Pathology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10461, United States
| | - Victor Lei
- Centre for Blood Research, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Edward M Conway
- Centre for Blood Research, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
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Nalli C, Iodice A, Andreoli L, Galli J, Lojacono A, Motta M, Fazzi E, Tincani A. Long-term neurodevelopmental outcome of children born to prospectively followed pregnancies of women with systemic lupus erythematosus and/or antiphospholipid syndrome. Lupus 2017; 26:552-558. [DOI: 10.1177/0961203317694960] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background Systemic lupus erythematosus (SLE) and antiphospholipid antibody syndrome (APS) are autoimmune diseases that affect women of childbearing age. Maternal IgG antiphospholipid antibodies (aPL) can cross the placenta during pregnancy and theoretically reach the fetal brain. Some studies showed an increased number of learning disabilities in these children. Objectives To evaluate the long-term neurodevelopmental outcome of 40 children (median age 7.4 years) born to mothers with SLE and/or APS carrying positive IgG aPL during the third trimester of pregnancy. Methods Children were checked for neurological physical exam and intellectual/cognitive functioning by the Wechsler scale for corrected age. We submitted to the mothers the Child Behavior CheckList (CBCL) and a homemade set of questions created by pediatric neurologists. Results In all children neurological physical exam and intelligence levels were found to be normal. A cognitive impairment or a discrepant cognitive profile was found in 3 (7%) and 11 (28%) children, respectively. Learning disabilities were diagnosed in 3 children (19% of school-age children), all born to mothers with triple aPL positivity. A history of epilepsy was shown in four children (10%). Conclusions: Children born to women with SLE and/or APS may need a long-term follow-up focusing on milestones of neurodevelopment in order to detect and correct any alteration as early as possible.
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Affiliation(s)
- C Nalli
- Rheumatology and Immunology Unit, Department of Clinical and Experimental Sciences, ASST Spedali Civili and University of Brescia, Brescia, Italy
| | - A Iodice
- Child Neuropsychiatry Unit, Santa Maria Nuova Hospital IRCCS, Reggio Emilia, Italy
| | - L Andreoli
- Rheumatology and Immunology Unit, Department of Clinical and Experimental Sciences, ASST Spedali Civili and University of Brescia, Brescia, Italy
| | - J Galli
- Unit of Child and Adolescent Neuropsychiatry, Department of Clinical and Experimental Sciences, ASST Spedali Civili and University of Brescia, Brescia, Italy
| | - A Lojacono
- Obstetrics and Gynecology, Department of Clinical and Experimental Sciences, ASST Spedali Civili and University of Brescia, Italy
| | - M Motta
- Neonatology and NICU, ASST Spedali Civili, Brescia, Italy
| | - E Fazzi
- Unit of Child and Adolescent Neuropsychiatry, Department of Clinical and Experimental Sciences, ASST Spedali Civili and University of Brescia, Brescia, Italy
| | - A Tincani
- Rheumatology and Immunology Unit, Department of Clinical and Experimental Sciences, ASST Spedali Civili and University of Brescia, Brescia, Italy
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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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Weindel CG, Richey LJ, Mehta AJ, Shah M, Huber BT. Autophagy in Dendritic Cells and B Cells Is Critical for the Inflammatory State of TLR7-Mediated Autoimmunity. THE JOURNAL OF IMMUNOLOGY 2016; 198:1081-1092. [PMID: 28031336 DOI: 10.4049/jimmunol.1601307] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 11/21/2016] [Indexed: 12/22/2022]
Abstract
Individuals suffering from autoimmune disorders possess a hyperactive cellular phenotype where tolerance to self-antigens is lost. Autophagy has been implicated in both the induction and prevention of autoimmunity, and modulators of this cellular recycling process hold high potential for the treatment of autoimmune diseases. In this study, we determine the effects of a loss of autophagy in dendritic cells (DCs), as well as both B cells and DCs, in a TLR7-mediated model of autoimmunity, similar to systemic lupus erythematosus, where both cell types are critical for disease. Although a loss of DC autophagy slowed disease, the combined loss of autophagy in both cell types resulted in a lethal sepsis-like environment, which included tissue inflammation and hyperproduction of inflammasome-associated cytokines. Ablation of B cell signaling reversed this phenotype, indicating that activation of these cells is an essential step in disease induction. Thus, autophagy plays a dichotomous role in this model of disease.
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Affiliation(s)
- Chi G Weindel
- Program in Genetics, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA 02111
| | - Lauren J Richey
- Division of Laboratory Animal Medicine, Tufts University, Boston, MA 02111; and
| | - Abhiruchi J Mehta
- Department of Integrative Physiology and Pathobiology, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA 02111
| | - Mansi Shah
- Department of Integrative Physiology and Pathobiology, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA 02111
| | - Brigitte T Huber
- Program in Genetics, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA 02111; .,Department of Integrative Physiology and Pathobiology, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA 02111
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Meroni PL. Prevention & treatment of obstetrical complications in APS: Is hydroxychloroquine the Holy Grail we are looking for? J Autoimmun 2016; 75:1-5. [PMID: 27496152 DOI: 10.1016/j.jaut.2016.07.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 07/05/2016] [Indexed: 12/30/2022]
Abstract
Pregnancy morbidity is part of the clinical spectrum of the anti-phospholipid syndrome (APS), with an important social and economical cost. Antiplatelet and anticoagulant agents are effective in preventing the clinical manifestations in the majority of the patients. However, a consistent proportion of the pregnant women present recurrences in spite of the standard therapy. Observational studies and anecdotal reports raised the issue of additional therapeutic strategies in these refractory cases. Among these, anti-malarials (AMs) and in particular hydroxychloroquine (HCQ) are becoming more and more popular in APS as well as in other systemic autoimmune rheumatic conditions. AMs display a pleiotropic activity spanning from immunomodulation effect to anti-inflammatory and anti-thrombotic activities, all of which potentially useful in APS. The well-known safety of HCQ in pregnancy encouraged its use in pregnant women with autoimmune rheumatic disorders including APS and observational reports suggested a protective effect on obstetrical recurrences. Since thrombosis does not seem to be the main pathogenic mechanism in obstetric APS, effectiveness of the treatment with HCQ should be related to other pharmacological effects rather than to the anti-platelet or anti-thrombotic activity of the molecule. Experimental models showed that HCQ may restore some defective biological functions induced by anti-phospholipid antibodies (aPL) on trophoblasts and a recent study reported a protective effect on in vivo aPL-mediated placental and foetal neurodevelopmental abnormalities. Although the rational behind the use of HCQ in obstetric APS is sound, the evidence from the real life is not conclusive and a critical appraisal through clinical trials is mandatory.
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Affiliation(s)
- Pier Luigi Meroni
- Department of Clinical Sciences and Community Health, University of Milan, Division of Rheumatology, ASST G. Pini, Pini Piazza C. Ferrari 1, 20122, Milan, Italy; IRCCS, Istituto Auxologico Italiano, Milan, Italy.
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