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Merashli M, Bucci T, Pastori D, Pignatelli P, Marottoli V, Arcaro A, Gentile F, Ames PR. Antiphospholipid antibodies and lower extremity peripheral artery disease: A systematic review and meta-analysis. Semin Arthritis Rheum 2020; 50:1291-1298. [PMID: 33065424 DOI: 10.1016/j.semarthrit.2020.08.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/11/2020] [Accepted: 08/24/2020] [Indexed: 12/22/2022]
Abstract
AIM To evaluate the clinical relevance of antiphospholipid antibodies (aPL) in patients with lower extremity peripheral artery disease (PAD). DATA SOURCES EMBASE and MEDLINE databases were searched from inception to March 2020 for clinical studies reporting on the association between of aPL [IgG/IgM anticardiolipin (aCL) and lupus anticoagulant (LA)] and PAD. METHODS We determined the pooled prevalence (PP) of patients positive for aPL in PAD or the PP of PAD in patients positive for aPL; we employed Peto's odds ratio with random effect for the meta-analysis. RESULTS Twenty-one studies comprising 6,057 patients were evaluated: in patients with PAD, the PP of IgG aCL was 12% vs 4.1% in those without, IgM aCL was 13.2% vs 2.1%, and LA 13.3% vs 3.3%, respectively. The PP of patients with LA was greater in critical limb ischemia than in the control group (19.3% vs 4.2%). Also, the PP of patients with LA was greater in the failed than in the successful revascularisation group (35.8% vs 15.8%). The PP of post-procedural revascularisation failures was similar in the groups given or not given oral anticoagulation (59.2% vs 61.9%). CONCLUSION All the aPL related to PAD regardless of diagnostic definition used, whereas LA related also to critical limb ischaemia and failed revascularisation. Data expressed as percentage of participants positive for aPL limit the interpretation of these relationships.
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Affiliation(s)
- Mira Merashli
- Department of Rheumatology, American University of Beirut, Beirut, Lebanon
| | - Tommaso Bucci
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Salerno, Salerno, Italy; Prima Clinica Medica, Atherothrombosis Centre, Department of Clinical, Internal, Anesthesiologic and Cardiovascular Sciences, Sapienza University of Rome
| | - Daniele Pastori
- Prima Clinica Medica, Atherothrombosis Centre, Department of Clinical, Internal, Anesthesiologic and Cardiovascular Sciences, Sapienza University of Rome
| | - Pasquale Pignatelli
- Prima Clinica Medica, Atherothrombosis Centre, Department of Clinical, Internal, Anesthesiologic and Cardiovascular Sciences, Sapienza University of Rome
| | | | - Alessia Arcaro
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
| | - Fabrizio Gentile
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
| | - Paul Rj Ames
- Immune Response and Vascular Disease Unit, Nova University, Lisbon, Portugal; Dumfries and Galloway Royal Infirmary, Dumfries, United Kingdom.
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Varela C, de Haro J, Bleda S, Rodriguez-Padilla J, Ferruelo A, Acín F. Circulating anti-β2-glycoprotein I antibodies of peripheral arterial disease patients trigger a genomic overexpression of Toll-like receptor 4 in endothelial cells. J Vasc Surg 2015; 61:1041-9.e1. [PMID: 24472415 DOI: 10.1016/j.jvs.2013.11.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 10/25/2013] [Accepted: 11/19/2013] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Circulating anti-β2-glycoprotein I (ABGPI) antibodies are associated with peripheral arterial disease (PAD) and induce the expression of leukocyte adhesion molecules and proinflammatory cytokines by endothelial cells. Our aim is to study a transcriptional activation pathway of the innate immune system through the cellular signalling cascade triggered by receptors Toll-like receptor 2 (TLR2) and Toll-like receptor 4 (TLR4) of endothelial cells after the exposure of these cells to seropositive ABGPI human serum obtained from PAD patients. METHODS We obtained serum samples from PAD patients and controls without PAD. ABGPI serum titer was detected using indirect immunofluorescence. Our sample was stratified into three groups: group I (PAD and ABGPI titer ≥1:100; n = 15), group II (PAD and ABGPI titer <1:100; n = 15), and control participants (no PAD; n = 15). All serum samples were incubated with human aortic endothelial cell (HAEC) culture. Genomic expression of TLR2 and TLR4 receptors and their shared intracellular signalling molecules, myeloid differentiation primary response gene 88 (MyD88), and interleukin (IL)-1 receptor-associated kinase (1IRAK1), were measured after the exposure of HAECs to each serum. RESULTS HAEC genomic expression of TLR4 was higher after the exposure to group I serum than after the exposure to group II serum (log10×10-relative quantification [RQ]: 1.80 ± 0.42 vs 1.37 ± 0.39; P = .01) or control serum (log10×10-RQ: 1.80 ± 0.42 vs 1.09 ± 0.26; P < .01). TLR4 expression was higher in group II than in the control group (log10×10-RQ: 1.37 ± 0.39 vs 1.09 ± 0.26; P = .04). TLR4 expression correlated with MyD88 (r = 0.54; P < .01) and IRAK1 (r = 0.55; P < .01) expression. We recorded a positive correlation between MyD88 and IRAK1 genomic expression (r = 0.58; P < .01). CONCLUSIONS Our results suggest that serum from PAD patients with elevated ABGPI antibodies induces a genomic overexpression of TLR4 and its cellular signalling molecules in endothelial cells.
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Affiliation(s)
- Cesar Varela
- Department of Angiology and Vascular Surgery, Hospital Universitario de Getafe, Madrid, Spain.
| | - Joaquin de Haro
- Department of Angiology and Vascular Surgery, Hospital Universitario de Getafe, Madrid, Spain
| | - Silvia Bleda
- Department of Angiology and Vascular Surgery, Hospital Universitario de Getafe, Madrid, Spain
| | | | - Antonio Ferruelo
- Department of Research, Hospital Universitario de Getafe, Madrid, Spain
| | - Francisco Acín
- Department of Angiology and Vascular Surgery, Hospital Universitario de Getafe, Madrid, Spain
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Circulating anti-beta2-glycoprotein I antibodies are associated with endothelial dysfunction, inflammation, and high nitrite plasma levels in patients with intermittent claudication. Int J Inflam 2013; 2013:268079. [PMID: 24222887 PMCID: PMC3810519 DOI: 10.1155/2013/268079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 06/02/2013] [Accepted: 08/29/2013] [Indexed: 11/24/2022] Open
Abstract
Our aim is to investigate a possible association of circulating anti-beta2-glycoprotein I antibodies (ABGPI) with the endothelial dysfunction, nitric oxide bioactivity dysregulation, and the inflammatory status that surrounds peripheral arterial disease. We carried out an observational translational study, including 50 male patients with intermittent claudication and a healthy control group of 10 male subjects, age and sex matched with the cases. Flow-mediated arterial dilatation (FMAD) was assessed as a surrogate of endothelial dysfunction, and C-reactive protein (hsCRP) was determined as a marker of inflammation. Nitrite plasma levels were measured by colorimetric analysis. Circulating ABGPI titer was detected with indirect immunofluorescence. Titers <1 : 10 represented the reference range and the lower detection limit of the test. Circulating ABGPI titer ≥1 : 10 was detected in 21 (42%) patients and in none of the control subjects (P < 0.01). Patients with ABGPI titer ≥1 : 10 had a lower FMAD (P = 0.01). The CRP levels were higher in patients with ABGPI titer ≥1 : 10 (P = 0.04). The nitrite plasma levels were higher in patients with ABGPI titer ≥1 : 10 (P < 0.01). These data suggest that these circulating ABGPI may collaborate in the development of atherosclerosis; however, further prospective studies are required to establish a causal relationship.
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Varela-Casariego C, de Haro-Miralles J, Bleda-Moreno S, Esparza-Gómez L, Ferruelo-Alonso A, Acín-García F. El suero de pacientes con enfermedad arterial periférica activa el sistema inmunitario innato a través de los receptores Toll-Like 4 de las células endoteliales. ANGIOLOGIA 2013. [DOI: 10.1016/j.angio.2013.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nayfe R, Uthman I, Aoun J, Saad Aldin E, Merashli M, Khamashta MA. Seronegative antiphospholipid syndrome. Rheumatology (Oxford) 2013; 52:1358-67. [PMID: 23502076 DOI: 10.1093/rheumatology/ket126] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
APS is an autoimmune disease that leads to arterial and/or venous thrombosis, recurrent pregnancy loss and persistently positive aPLs. Patients with clinical manifestations highly suggestive of APS but persistently negative conventional aPLs are classified as having seronegative APS. Ongoing research has revealed the existence of non-criteria antibodies proposed to be relevant to APS and that can be potentially included in the disease's classification criteria. We present a literature review on the most promising antibodies of this heterogeneous aPL family, which includes antibodies to a zwitterionic phospholipid, namely phosphatidylethanolamine, phospholipid-binding plasma proteins, phospholipid-protein complexes and anionic phospholipids other than cardiolipin. Although these molecules can increase the diagnostic yield of APS, their clinical relevance is still debatable and needs to be confirmed by interlaboratory efforts toward standardizing diagnostic tools, in addition to experimental data and larger longitudinal studies.
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Affiliation(s)
- Rabih Nayfe
- Department of Internal Medicine, American University of Beirut Medical Center, PO Box 11-0236, Riad El-Solh, Beirut 1107 2020, Lebanon
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Antiphospholipid antibodies as non-traditional risk factors in atherosclerosis based cardiovascular diseases without overt autoimmunity. A critical updated review. Autoimmun Rev 2012; 11:873-82. [DOI: 10.1016/j.autrev.2012.03.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Accepted: 03/06/2012] [Indexed: 11/23/2022]
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Mullen MT, Messé SR, Kasner SE, Sansing L, Husain MR, Norman GL, Shums Z, Cucchiara BL. Anti-Phosphatidylserine-Prothrombin Antibodies are Associated with Outcome in a TIA Cohort. Front Neurol 2012; 3:137. [PMID: 23060855 PMCID: PMC3460224 DOI: 10.3389/fneur.2012.00137] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Accepted: 09/10/2012] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Antiphospholipid antibodies (aPLs) have been associated with thrombosis in the antiphospholipid antibody syndrome (APS) and with atherosclerotic vascular events in patients without APS. We examined the significance of aPLs in transient ischemic attack (TIA). PATIENTS/METHODS Patients with TIA <48 h from symptom onset were prospectively enrolled. Traditional aPLs, including anticardiolipin and β2-glycoprotein-I (β2GPI), and newer aPLs, including anti-phosphatidylserine/prothrombin (aPS/PT), β2GPI Domain 4/5 and β2GPI Domain 1 were measured. Primary outcome was a composite of stroke or death within 90 days or identification of a high risk stroke mechanism. Secondary outcomes were stroke or death and the presence of clinical/sub-clinical atherosclerosis. RESULTS Over 4.5 years, 167 patients were enrolled. Forty one patients (25%) had the composite endpoint. Antibodies were measured in 158 subjects. aPS/PT IgG antibodies were significantly associated with stroke/death (OR 16.3, 95% CI 2.3-116.7, p = 0.005) and were non-significantly associated with the composite endpoint (OR 4.7, 95% CI 0.8-29.2, p = 0.10). In multivariate analysis adjusting for ABCD(2) risk score, aPS/PT IgG remained associated with stroke/death (OR 15.7, 95% CI 2.0-125.6, p = 0.009). Other aPLs were not associated with clinical outcome and no association between APLs and atherosclerosis was identified. CONCLUSION In contrast to other aPLs, aPS/PT IgG antibodies are independently associated with stroke or death in patients with TIA.
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Affiliation(s)
- Michael T Mullen
- Department of Neurology, University of Pennsylvania Philadelphia, PA, USA
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Bertolaccini ML, Amengual O, Atsumi T, Binder WL, de Laat B, Forastiero R, Kutteh WH, Lambert M, Matsubayashi H, Murthy V, Petri M, Rand JH, Sanmarco M, Tebo AE, Pierangeli SS. 'Non-criteria' aPL tests: report of a task force and preconference workshop at the 13th International Congress on Antiphospholipid Antibodies, Galveston, TX, USA, April 2010. Lupus 2011; 20:191-205. [PMID: 21303836 DOI: 10.1177/0961203310397082] [Citation(s) in RCA: 122] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Abstract: Current classification criteria for definite APS recommend the use of one or more of three positive standardized laboratory assays, including anticardiolipin antibodies (aCL), lupus anticoagulant (LA), and antibodies directed to β(2)glycoprotein I (anti-β(2)GPI) to detect antiphospholipid antibodies (aPL) in the presence of at least one of the two major clinical manifestations (i.e., thrombosis or pregnancy morbidity) of the syndrome. Several other autoantibodies shown to be directed to phospholipids and/or their complexes with phospholipids and/or to proteins of the coagulation cascade, as well as a mechanistic test for resistance to annexin A5 anticoagulant activity, have been proposed to be relevant to APS. A task force of worldwide scientists in the field discussed and analyzed critical questions related to 'non-criteria' aPL tests in an evidence-based manner during the 13th International Congress on Antiphospholipid Antibodies (APLA 2010, 13-16 April 2010, Galveston, Texas, USA). This report summarizes the findings, conclusions, and recommendations of this task force.
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Affiliation(s)
- M L Bertolaccini
- Lupus Research Unit, The Rayne Institute, King's College London School of Medicine, London, UK.
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Ames PRJ, Scenna G, Antinolfi I, Lopez L, Iannaccone L, Matsuura E, Margarita A. Atherosclerosis in primary antiphospholipid syndrome. Expert Rev Clin Immunol 2010; 4:53-60. [PMID: 20477587 DOI: 10.1586/1744666x.4.1.53] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Antiphospholipid syndrome (APS) is the most common cause of acquired thrombophilia, but experimental and clinical evidence accumulated over the years suggest that the clinical manifestations of APS go beyond those of a simple hypercoagulable state. Although still a controversial topic, the elevated risk of atherosclerosis in systemic lupus erythematosus seems little accounted for by the presence of antiphospholipid antibodies, whereas premature atherosclerosis has been addressed in few series of patients with primary APS. The available data in primary APS suggest that traditional risk factors for atherosclerosis are less involved in arterial disease, rather antiphospholipid antibodies appear as major players. Their effect on the coagulation system, the vessel wall and on the antioxidant/oxidant balance impairs vascular homeostasis, leading to premature arterial thickening.
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Boin F, Franchini S, Colantuoni E, Rosen A, Wigley FM, Casciola-Rosen L. Independent association of anti-beta(2)-glycoprotein I antibodies with macrovascular disease and mortality in scleroderma patients. ARTHRITIS AND RHEUMATISM 2009; 60:2480-9. [PMID: 19644882 PMCID: PMC2746063 DOI: 10.1002/art.24684] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Systemic sclerosis (SSc; scleroderma) is characterized by a unique widespread vascular involvement that can lead to severe digital ischemia, pulmonary arterial hypertension (PAH), or other organ dysfunction. Microthrombotic events and procoagulation factors such as anti-beta2-glycoprotein I (anti-beta2GPI) or anticardiolipin antibodies (aCL) may be implicated in the development of these manifestations. This study was undertaken to investigate whether anti-beta2GPI and aCL are correlated with macrovascular disease, including ischemic digital loss and PAH, in SSc patients. METHODS Seventy-five SSc patients with a history of ischemic digital loss and 75 matched SSc controls were evaluated. Anticentromere antibodies (ACAs), anti-beta2GPI, and aCL were measured, and clinical associations were determined using conditional and simple logistic regression models. RESULTS Positivity for anti-beta2GPI was significantly more frequent in SSc patients with digital loss than in patients without digital loss (P=0.017), with the IgA isotype of anti-beta2GPI showing the strongest association (odds ratio [OR] 4.0). There was no significant difference in aCL frequency between patients with digital loss and control patients. After adjustment for demographic characteristics, disease type, smoking, and ACA, anti-beta2GPI positivity was significantly associated with active digital ischemia (OR 9.4), echocardiographically evident PAH (OR 4.8), and mortality (OR 2.9). ACA positivity was associated with history of digital loss (OR 3.28), but not with PAH or mortality. History of digital loss was strongly associated with increased mortality (OR 12.5). CONCLUSION Anti-beta2GPI is significantly associated with macrovascular disease in SSc and independently predicts mortality. It is unclear whether it has a pathogenetic role or simply reveals the presence of underlying endothelial injury. The use of anti-beta2GPI as a biomarker of vascular disease in SSc should be further explored.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antibodies, Anticardiolipin/blood
- Antibodies, Anticardiolipin/immunology
- Antibodies, Antinuclear/blood
- Antibodies, Antinuclear/immunology
- Female
- Fingers/blood supply
- Humans
- Hypertension, Pulmonary/etiology
- Hypertension, Pulmonary/immunology
- Hypertension, Pulmonary/mortality
- Ischemia/etiology
- Ischemia/immunology
- Ischemia/mortality
- Male
- Middle Aged
- Scleroderma, Systemic/complications
- Scleroderma, Systemic/immunology
- Scleroderma, Systemic/mortality
- Severity of Illness Index
- Survival Rate
- Young Adult
- beta 2-Glycoprotein I/immunology
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Affiliation(s)
- Francesco Boin
- Johns Hopkins University School of Medicine, Baltimore, Maryland 21224, USA.
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