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Fernandes-Serodio J, Prieto-González S, Espígol-Frigolé G, Ríos-Garcés R, Gómez-Caverzaschi V, Araújo O, Espinosa G, Jordà-Sánchez R, Alba MA, Quintana L, Blasco M, Guillen E, Viñas O, Ruiz-Ortiz E, Pelegrín L, Sainz de la Maza M, Sánchez-Dalmau B, García-Herrera A, Solé M, Castillo P, Aldecoa I, Cano MD, Sellarés J, Hernández-González F, Agustí C, Lucena CM, López-Rueda A, Sánchez M, Benegas M, Capurro S, Sanmartí R, Grau JM, Vilaseca I, Alobid I, Cid MC, Hernández-Rodríguez J. Significance of clinical-immunological patterns and diagnostic yield of biopsies in microscopic polyangiitis and granulomatosis with polyangiitis. J Intern Med 2024; 295:651-667. [PMID: 38462959 DOI: 10.1111/joim.13777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
BACKGROUND Microscopic polyangiitis (MPA) and granulomatosis with polyangiitis (GPA) are the two major antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). OBJECTIVES To characterize a homogenous AAV cohort and to assess the impact of clinicopathological profiles and ANCA serotypes on clinical presentation and prognosis. Clinical differences in GPA patients according to ANCA serotype and the diagnostic yield for vasculitis of biopsies in different territories were also investigated. RESULTS This retrospective study (2000-2021) included 152 patients with AAV (77 MPA/75 GPA). MPA patients (96.1% myeloperoxidase [MPO]-ANCA and 2.6% proteinase 3 [PR3]-ANCA) presented more often with weight loss, myalgia, renal involvement, interstitial lung disease (ILD), cutaneous purpura, and peripheral nerve involvement. Patients with GPA (44% PR3-ANCA, 33.3% MPO, and 22.7% negative/atypical ANCA) presented more commonly with ear, nose, and throat and eye/orbital manifestations, more relapses, and higher survival than patients with MPA. GPA was the only independent risk factor for relapse. Poor survival predictors were older age at diagnosis and peripheral nerve involvement. ANCA serotypes differentiated clinical features in a lesser degree than clinical phenotypes. A mean of 1.5 biopsies were performed in 93.4% of patients in different territories. Overall, vasculitis was identified in 80.3% (97.3% in MPA and 61.8% in GPA) of patients. CONCLUSIONS The identification of GPA presentations associated with MPO-ANCA and awareness of risk factors for relapse and mortality are important to guide proper therapeutic strategies in AAV patients. Biopsies of different affected territories should be pursued in difficult-to-diagnose patients based on their significant diagnostic yield.
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Affiliation(s)
- João Fernandes-Serodio
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
- Systemic Immuno-mediated Diseases Unit (UDIMS), Department of Internal Medicine IV, Hospital Professor Doutor Fernando Fonseca, Amadora, Portugal
| | - Sergio Prieto-González
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Georgina Espígol-Frigolé
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Roberto Ríos-Garcés
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Verónica Gómez-Caverzaschi
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Olga Araújo
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Gerard Espinosa
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Raül Jordà-Sánchez
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Marco A Alba
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Luis Quintana
- Department of Nephrology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Miquel Blasco
- Department of Nephrology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Elena Guillen
- Department of Nephrology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Odette Viñas
- Department of Immunology, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
| | - Estíbaliz Ruiz-Ortiz
- Department of Immunology, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
| | - Laura Pelegrín
- Department of Ophthalmology, Hospital Clinic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Maite Sainz de la Maza
- Department of Ophthalmology, Hospital Clinic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Bernardo Sánchez-Dalmau
- Department of Ophthalmology, Hospital Clinic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Adriana García-Herrera
- Department of Anatomic Pathology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Manel Solé
- Department of Anatomic Pathology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Paola Castillo
- Department of Anatomic Pathology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Iban Aldecoa
- Department of Anatomic Pathology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - María D Cano
- Department of Anatomic Pathology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Jacobo Sellarés
- Department of Pulmonary Medicine, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Fernanda Hernández-González
- Department of Pulmonary Medicine, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Carlos Agustí
- Department of Pulmonary Medicine, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Carmen M Lucena
- Department of Pulmonary Medicine, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Antonio López-Rueda
- Interventional Neuroradiology Unit, Department of Radiology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Marcelo Sánchez
- Department of Radiology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Mariana Benegas
- Department of Radiology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Sebastián Capurro
- Department of Radiology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Raimon Sanmartí
- Department of Rheumatology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Josep M Grau
- Department of Internal Medicine, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Isabel Vilaseca
- Department of Otorhinolaryngology, Hospital Clinic of Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Isam Alobid
- Department of Otorhinolaryngology, Hospital Clinic of Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Maria C Cid
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - José Hernández-Rodríguez
- Department of Autoimmune Diseases, Vasculitis Research Unit, Center of the European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA), Spanish Center of the Centros, Servicios y Unidades de Referencia (CSUR) and Catalan Center of the Xarxa d'Unitats d'Expertesa Clínica (XUEC) in Autoimmune Diseases and Autoinflammatory Diseases, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
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Takamasu E, Yokogawa N, Okada H, Morishima R, Shimada K. Histopathological necrotizing vasculitis predicts severe flare of eosinophilic granulomatosis with polyangiitis. Eur J Intern Med 2024; 123:153-155. [PMID: 38302405 DOI: 10.1016/j.ejim.2024.01.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Affiliation(s)
- Eisuke Takamasu
- Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo 183-8524, Japan.
| | - Naoto Yokogawa
- Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo 183-8524, Japan
| | - Haruka Okada
- Department of Pathology, Tokyo Metropolitan Tama Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo 183-8524, Japan
| | - Ryo Morishima
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, 2-6-1, Musashidai, Fuchu, Tokyo 183-0042, Japan
| | - Kota Shimada
- Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo 183-8524, Japan
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Hellmich B, Sanchez-Alamo B, Schirmer JH, Berti A, Blockmans D, Cid MC, Holle JU, Hollinger N, Karadag O, Kronbichler A, Little MA, Luqmani RA, Mahr A, Merkel PA, Mohammad AJ, Monti S, Mukhtyar CB, Musial J, Price-Kuehne F, Segelmark M, Teng YKO, Terrier B, Tomasson G, Vaglio A, Vassilopoulos D, Verhoeven P, Jayne D. EULAR recommendations for the management of ANCA-associated vasculitis: 2022 update. Ann Rheum Dis 2024; 83:30-47. [PMID: 36927642 DOI: 10.1136/ard-2022-223764] [Citation(s) in RCA: 112] [Impact Index Per Article: 112.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/21/2023] [Indexed: 03/18/2023]
Abstract
BACKGROUND Since the publication of the EULAR recommendations for the management of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) in 2016, several randomised clinical trials have been published that have the potential to change clinical care and support the need for an update. METHODS Using EULAR standardised operating procedures, the EULAR task force undertook a systematic literature review and sought opinion from 20 experts from 16 countries. We modified existing recommendations and created new recommendations. RESULTS Four overarching principles and 17 recommendations were formulated. We recommend biopsies and ANCA testing to assist in establishing a diagnosis of AAV. For remission induction in life-threatening or organ-threatening AAV, we recommend a combination of high-dose glucocorticoids (GCs) in combination with either rituximab or cyclophosphamide. We recommend tapering of the GC dose to a target of 5 mg prednisolone equivalent/day within 4-5 months. Avacopan may be considered as part of a strategy to reduce exposure to GC in granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA). Plasma exchange may be considered in patients with rapidly progressive glomerulonephritis. For remission maintenance of GPA/MPA, we recommend rituximab. In patients with relapsing or refractory eosinophilic GPA, we recommend the use of mepolizumab. Azathioprine and methotrexate are alternatives to biologics for remission maintenance in AAV. CONCLUSIONS In the light of recent advancements, these recommendations provide updated guidance on AAV management. As substantial data gaps still exist, informed decision-making between physicians and patients remains of key relevance.
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Affiliation(s)
- Bernhard Hellmich
- Klinik für Innere Medizin, Rheumatologie und Immunologie, Medius Kliniken, Akademisches Lehrkrankenhaus der Universität Tübingen, Kirchheim unter Teck, Germany
| | | | - Jan H Schirmer
- Rheumatology & Clinical Immunology and Cluster of Excellence Precision Medicine in Chronic Inflammation, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Alvise Berti
- CIBIO, Universita degli Studi di Trento, Trento, Italy
- Rheumatology, Santa Chiara Hospital, Trento, Italy
| | - Daniel Blockmans
- Department of Internal Medicine, University Hospital of Leuven, Leuven, Belgium
| | - Maria C Cid
- Department of Autoimmune Diseases, Hospital Clinic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Julia U Holle
- Rheumazentrum Schleswig-Holstein Mitte, Neumuenster, Germany
| | - Nicole Hollinger
- Klinik für Innere Medizin, Rheumatologie und Immunologie, Medius Kliniken, Akademisches Lehrkrankenhaus der Universität Tübingen, Kirchheim unter Teck, Germany
| | - Omer Karadag
- Division of Rheumatology, Department of Internal Medicine, Vasculitis Research Center, Hacettepe University School of Medicine, Anakra, Turkey
| | - Andreas Kronbichler
- Department of Internal Medicine IV, Medical University, Innsbruck, Austria
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Mark A Little
- Trinity Health Kidney Centre, Trinity College Dublin, Dublin, Ireland
| | - Raashid A Luqmani
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Science (NDORMs), University of Oxford, Oxford, UK
| | - Alfred Mahr
- Klinik für Rheumatologie, Kantonspital St Gallen, St Gallen, Switzerland
| | - Peter A Merkel
- Division of Rheumatology, Department of Medicine, Division of Epidemiology, Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Aladdin J Mohammad
- Department of Medicine, University of Cambridge, Cambridge, UK
- Department of Clinical Sciences, Lund University & Department of Rheumatology, Skåne Hospital, Lund, Sweden
| | - Sara Monti
- Department of Internal Medicine and Therapeutics, Università di Pavia, Pavia, Italy
- Division of Rheumatology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Chetan B Mukhtyar
- Vasculitis Service, Rheumatology Department, Norfolk and Norwich University Hospital NHS Trust, Norwich, UK
| | - Jacek Musial
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Kraków, Poland
| | | | - Mårten Segelmark
- Division of Nephrology, Department of Clinical Sciences, Lund University, Skane University Hospital, Lund, Sweden
| | - Y K Onno Teng
- Centre of Expertise for Lupus-, Vasculitis-, and Complement-Mediated Systemic Autoimmune Diseases (LuVaCs), Department of Internal Medicine, Section Nephrology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Benjamin Terrier
- National Referral Center for Rare Systemic Autoimmune Diseases, Université Paris Descartes, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France
| | - Gunnar Tomasson
- Department of Epidemiology and Biostatistics, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
- Department of Rheumatology and Centre for Rheumatology Research, University Hospital Reykjavik, Reykjavik, Iceland
| | - Augusto Vaglio
- Nephrology Unit, Meyer Children's Hospital, and Department of Biomedical, Experimental and Clinical Science, University of Florence, Florence, Italy
| | - Dimitrios Vassilopoulos
- 2nd Department of Medicine and Laboratory, Clinical Immunology-Rheumatology Unit, National and Kapodistrian University of Athens, School of Medicine, Hippokration General Hospital, Athens, Greece
| | - Peter Verhoeven
- Dutch Patient Vasculitis Organization, Haarlem, The Netherlands
| | - David Jayne
- Department of Medicine, University of Cambridge, Cambridge, UK
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Huang SUS, Kulatunge O, O'Sullivan KM. Deciphering the Genetic Code of Autoimmune Kidney Diseases. Genes (Basel) 2023; 14:genes14051028. [PMID: 37239388 DOI: 10.3390/genes14051028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/26/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Autoimmune kidney diseases occur due to the loss of tolerance to self-antigens, resulting in inflammation and pathological damage to the kidneys. This review focuses on the known genetic associations of the major autoimmune kidney diseases that result in the development of glomerulonephritis: lupus nephritis (LN), anti-neutrophil cytoplasmic associated vasculitis (AAV), anti-glomerular basement disease (also known as Goodpasture's disease), IgA nephropathy (IgAN), and membranous nephritis (MN). Genetic associations with an increased risk of disease are not only associated with polymorphisms in the human leukocyte antigen (HLA) II region, which governs underlying processes in the development of autoimmunity, but are also associated with genes regulating inflammation, such as NFkB, IRF4, and FC γ receptors (FCGR). Critical genome-wide association studies are discussed both to reveal similarities in gene polymorphisms between autoimmune kidney diseases and to explicate differential risks in different ethnicities. Lastly, we review the role of neutrophil extracellular traps, critical inducers of inflammation in LN, AAV, and anti-GBM disease, where inefficient clearance due to polymorphisms in DNase I and genes that regulate neutrophil extracellular trap production are associated with autoimmune kidney diseases.
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Affiliation(s)
- Stephanie U-Shane Huang
- Department of Medicine, Centre for Inflammatory Diseases, Monash University, Clayton, VIC 3168, Australia
| | - Oneli Kulatunge
- Department of Medicine, Centre for Inflammatory Diseases, Monash University, Clayton, VIC 3168, Australia
| | - Kim Maree O'Sullivan
- Department of Medicine, Centre for Inflammatory Diseases, Monash University, Clayton, VIC 3168, Australia
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Alba MA, Jennette JC, Hu Y, Poulton CJ, Blazek L, Derebail VK, Falk RJ, Hogan SL. Relevance of Combined Clinicopathologic Phenotype and Antineutrophil Cytoplasmic Autoantibody Serotype in the Diagnosis of Antineutrophil Cytoplasmic Autoantibody Vasculitis. Kidney Int Rep 2022; 7:2676-2690. [PMID: 36506241 PMCID: PMC9727534 DOI: 10.1016/j.ekir.2022.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 12/15/2022] Open
Abstract
Introduction Granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA), 2 major clinicopathologic variants of antineutrophil cytoplasmic autoantibody (ANCA) vasculitides, are mostly associated with proteinase 3 (PR3)-ANCA and myeloperoxidase (MPO)-ANCA, respectively. Less is known regarding the uncommon forms of ANCA vasculitis, PR3-ANCA MPA and MPO-ANCA GPA. Methods In this cohort study we detailed the clinical presentation and outcome of patients with PR3-ANCA MPA and MPO-ANCA GPA from the Glomerular Disease Collaborative Network (GDCN) inception cohort. Baseline clinical manifestations, relapses, end-stage kidney disease (ESKD), and survival were compared within MPA cases by PR3-ANCA (n = 116) versus MPO-ANCA (n = 173) and within GPA cases by PR3-ANCA (n = 108) versus MPO-ANCA (n = 43). Fisher's exact test and Wilcoxon two sample test were used for comparisons. Proportional hazards models were used to evaluate the development of relapses, ESKD, and death. Results Patients with PR3-ANCA MPA were younger (53 years vs. 62 years, P = 0.0007) and had increased prevalence of joint involvement (56% vs. 40%, P = 0.0115) and ear, nose, and throat (ENT) involvement (44% vs. 26%, P = 0.002) than MPO-ANCA MPA. Relapses, ESKD, and survival were similar between both MPA subsets. Within the GPA group, patients with MPO-ANCA GPA were older (61 years vs. 46 years, P = 0.0007) and more likely female (56% vs. 35%, P = 0.027) than PR3-ANCA GPA patients. MPO-ANCA GPA was also characterized by less prevalent ENT manifestations (58% vs. 77%, P = 0.028) and neurologic manifestations (5% vs. 25%, P = 0.0029), and increased ESKD and mortality. Conclusions PR3-ANCA MPA and MPO-ANCA GPA are clinicopathologically distinct subsets of ANCA vasculitis that differ from MPO-ANCA MPA and PR3-ANCA GPA. Although the impact of these differences on the clinical management and outcome warrants further evaluation, these results support the recommendation of including both the phenotypic diagnosis and ANCA serotype in the diagnosis of ANCA vasculitis.
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Affiliation(s)
- Marco A. Alba
- Department of Pathology and Laboratory Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - J. Charles Jennette
- Department of Pathology and Laboratory Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Yichun Hu
- University of North Carolina Kidney Center, Division of Nephrology and Hypertension, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Caroline J. Poulton
- University of North Carolina Kidney Center, Division of Nephrology and Hypertension, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Lauren Blazek
- University of North Carolina Kidney Center, Division of Nephrology and Hypertension, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Vimal K. Derebail
- University of North Carolina Kidney Center, Division of Nephrology and Hypertension, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Ronald J. Falk
- University of North Carolina Kidney Center, Division of Nephrology and Hypertension, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Susan L. Hogan
- University of North Carolina Kidney Center, Division of Nephrology and Hypertension, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Puéchal X, Iudici M, Pagnoux C, Cohen P, Hamidou M, Aouba A, Lifermann F, Ruivard M, Aumaître O, Bonnotte B, Maurier F, Le Gallou T, Hachulla E, Karras A, Khouatra C, Jourde-Chiche N, Viallard JF, Blanchard-Delaunay C, Godmer P, Le Quellec A, Quéméneur T, de Moreuil C, Mouthon L, Terrier B, Guillevin L. Comparative study of granulomatosis with polyangiitis subsets according to ANCA status: data from the French Vasculitis Study Group Registry. RMD Open 2022; 8:rmdopen-2021-002160. [PMID: 35296533 PMCID: PMC8928389 DOI: 10.1136/rmdopen-2021-002160] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 02/21/2022] [Indexed: 01/08/2023] Open
Abstract
Objective To investigate whether antineutrophil cytoplasm antibody (ANCA)-negative and myeloperoxidase (MPO)-ANCA–positive granulomatosis with polyangiitis (GPA) differ from proteinase-3 (PR3)-ANCA–positive GPA. Methods Diagnostic characteristics and outcomes of newly diagnosed French Vasculitis Study Group Registry patients with ANCA-negative, MPO-ANCA–positive or PR3-ANCA–positive GPA satisfying American College of Rheumatology criteria and/or Chapel Hill Conference Consensus Nomenclature were compared. Results Among 727 GPA, 62 (8.5%) were ANCA-negative, 119 (16.4%) MPO-ANCA–positive and 546 (75.1%) PR3-ANCA–positive. ANCA-negative patients had significantly (p<0.05) more limited disease (17.7% vs 5.8%) and less kidney involvement (35.5% vs 58.9%) than those PR3-ANCA–positive or MPO-ANCA–positive, with comparable relapse-free (RFS) and overall survival (OS). MPO-ANCA–positive versus PR3-ANCA–positive and ANCA-negative patients were significantly more often female (52.9% vs 42.1%), older (59.8 vs 51.9 years), with more frequent kidney involvement (65.5% vs 55.2%) and less arthralgias (34.5% vs 55.1%), purpura (8.4% vs 17.1%) or eye involvement (18.5% vs 28.4%); RFS was similar but OS was lower before age adjustment. PR3-positive patients’ RFS was significantly lower than for ANCA-negative and MPO-positive groups combined, with OS higher before age adjustment. PR3-ANCA–positivity independently predicted relapse for all GPA forms combined but not when comparing only PR3-ANCA–positive versus MPO-ANCA–positive patients. Conclusions Based on this large cohort, ANCA-negative versus ANCA-positive patients more frequently had limited disease but similar RFS and OS. MPO-ANCA–positive patients had similar RFS but lower OS due to their older age. PR3-ANCA–positive GPA patients’ RFS was lower than those of the two other subsets combined but that difference did not persist when comparing only PR3 versus MPO-ANCA–positive patients.
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Affiliation(s)
- Xavier Puéchal
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
| | - Michele Iudici
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France.,Division of Rheumatology, Department of Internal Medicine Specialties, Geneva University Hospitals, Geneva, Switzerland
| | - Christian Pagnoux
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France.,Vasculitis Clinic, Mont Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Pascal Cohen
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
| | - Mohamed Hamidou
- Internal Medicine, Hôtel-Dieu University Hospital, Nantes, France
| | - Achille Aouba
- Internal Medicine, Côte-de-Nacre Hospital, University of Caen Normandy, Caen, France
| | | | - Marc Ruivard
- Internal Medicine, Clermont-Ferrand University Hospitals, Clermont-Ferrand, France
| | - Olivier Aumaître
- Internal Medicine, Clermont-Ferrand University Hospitals, Clermont-Ferrand, France
| | - Bernard Bonnotte
- Internal Medicine and Clinical Immunology, François Mitterrand Hospital, University of Burgundy, Dijon, France
| | | | - Thomas Le Gallou
- Internal Medicine and Clinical Immunology, University of Rennes 1, Rennes, France
| | - Eric Hachulla
- Internal Medicine, Claude-Huriez Hospital, Lille University School of Medicine, Lille, France
| | - Alexandre Karras
- Nephrology, European Hospital Georges Pompidou, AP-HP.Centre, University of Paris, Paris, France, Paris, France
| | - Chahéra Khouatra
- Respiratory Medicine, Louis Pradel Hospital, University of Claude Bernard Lyon 1, Lyon, France
| | | | | | | | - Pascal Godmer
- Internal Medicine, Bretagne -Atlantique Hospital, Vannes, France
| | - Alain Le Quellec
- Internal Medicine, Saint Eloi Hospital, University of Montpellier 1, Montpellier, France
| | - Thomas Quéméneur
- Nephrology and Internal Medicine, Valenciennes Hospital, Valenciennes, France
| | - Claire de Moreuil
- Internal Medicine, La Cavale Blanche University Hospital, Brest, France
| | - Luc Mouthon
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
| | - Benjamin Terrier
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
| | - Loïc Guillevin
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
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7
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Classification of ANCA-associated vasculitis: differences based on ANCA specificity and clinicopathologic phenotype. Rheumatol Int 2021; 41:1717-1728. [PMID: 34383129 DOI: 10.1007/s00296-021-04966-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 08/03/2021] [Indexed: 01/24/2023]
Abstract
The classification of vasculitis according to a schema with universal acceptance is challenging, given the heterogeneous and protean nature of these diseases. Formal nomenclature and classification criteria for anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) have suffered several changes since their first description; none provides comprehensive diagnostic and classification criteria. Different factors account for the difficulties in the classification of vasculitis, including the incomplete understanding of the pathogenesis, the multisystemic nature of the disease, the non-specific patterns of vascular involvement, the overlap between entities, and the presence of various classification systems. The present article reviews the classification of AAV considering different points of view, including clinical, serologic, pathogenetic, organ predilection, therapeutic, and prognostic factors, and provides perspectives on future challenges in the understanding of AAV. There is an unmet need for a unifying view of the disease spectrum that considers the constantly evolving paradigms.
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8
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Wu T, Shen C, Zhong Y, Ooi JD, Zhou YO, Chen JB, Meng T, Xiao Z, Lin W, Ao X, Xiao X, Zhou Q, Xiao P. Differences between myeloperoxidase-antineutrophil cytoplasmic autoantibody (ANCA) and proteinase 3-ANCA associated vasculitis: A retrospective study from a single center in China. Exp Ther Med 2021; 21:561. [PMID: 33850533 PMCID: PMC8027729 DOI: 10.3892/etm.2021.9993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 01/12/2021] [Indexed: 12/12/2022] Open
Abstract
In antineutrophil cytoplasmic autoantibody (ANCA)-associated vasculitides (AAV), the two major target antigens of ANCA are proteinase 3 (PR3) and myeloperoxidase (MPO). Evidence is accumulating that there are distinct differences between patients with PR3-AAV and those with MPO-AAV. In the present study, the clinicopathological features and prognosis of patients with PR3-AAV and MPO-AAV from a single center in China were retrospectively analyzed. A total of 212 Chinese patients with AAV were recruited in the present study; 189/212 (89.15%) patients were classified as having MPO-AAV and 23/212 (10.85%) patients as having PR3-AAV. Compared with those in the PR3-AAV group, patients in the MPO-AAV group were older and less frequently had ear, nose and throat or ophthalmic involvement. MPO-AAV patients had higher levels of serum creatinine and proteinuria at baseline. No significant difference was observed with regard to the pathological changes of the glomeruli and tubulointerstitium between the two groups. The probability of developing end-stage renal disease was significantly higher in patients with MPO-AAV compared with that in patients with PR3-AAV. There was no significant difference in the one-year patient survival rate between the two groups. However, differences in certain clinical characteristics and outcomes were observed between MPO-AAV and PR3-AAV patients. A large national investigation of AAV is required to confirm the concept that PR3-AAV and MPO-AAV are distinct disease entities.
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Affiliation(s)
- Ting Wu
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Chanjuan Shen
- Department of Hematology, the Affiliated Zhuzhou Hospital Xiangya Medical College, Central South University, Zhuzhou, Hunan 412000, P.R. China
| | - Yong Zhong
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Joshua D Ooi
- Department of medicine, Centre for Inflammatory Diseases, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia
| | - Ya-Ou Zhou
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Jin-Biao Chen
- Department of Medical Records and Information, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Ting Meng
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Zhou Xiao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Wei Lin
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiang Ao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiangcheng Xiao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Qiaoling Zhou
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Ping Xiao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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9
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He P, Hu JP, Tian XJ, He LJ, Sun SR, Huang C. Prevalence and risk factors of relapse in patients with ANCA-associated vasculitis receiving cyclophosphamide induction: a systematic review and meta-analysis of large observational studies. Rheumatology (Oxford) 2021; 60:1067-1079. [PMID: 33677596 DOI: 10.1093/rheumatology/keaa667] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 09/22/2020] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Clinical relapses are common in patients with ANCA-associated vasculitis (AAV). The aim of this systematic review was to estimate time-point prevalence and risk factors of relapse. METHODS We searched PubMed, Embase, and Cochrane Library databases from their inception to March 30, 2020. Cohorts and post-hoc studies were included for the estimation of summary cumulative relapse rates (CRRs) and adjusted hazard ratios (aHRs) with 95% confidence intervals (CIs). Sensitivity and meta-regression analyses were also performed. RESULTS Of the 42 eligible studies, 24 studies with 6236 participants were used for the pooled analyses of CRRs. The summary 1-year, 3-year, and 5-year CRRs were 0.12 (95% CI, 0.10-0.14), 0.33 (0.29-0.38), and 0.47 (0.42-0.52), respectively. In meta-regressions, the baseline age was positively associated with 1-year CRR. The proportion of granulomatosis with polyangiitis was positively associated with 5-year CRR. Twenty-eight studies with 5390 participants were used for the meta-analysis of risk factors for relapse, including a lower level of baseline serum creatine, proteinase 3 (PR3)-ANCA positivity at diagnosis, an ANCA rise, extrarenal organ involvement (including lung, cardiovascular, upper respiratory, and gastrointestinal involvement), intravenous (vs oral) cyclophosphamide induction, a shorter course of immunosuppressant maintenance, and maintenance with mycophenolate mofetil (vs azathioprine). CONCLUSIONS Our systematic review demonstrated that the 1-year, 3-year, and 5-year cumulative probabilities of relapse were ∼12%, 33%, and 47% in AAV patients receiving cyclophosphamide induction, respectively. Early identification of risk factors for relapse is helpful to the risk stratification of patients so as to achieve personalized treatment.
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Affiliation(s)
- Peng He
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jin-Ping Hu
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xiu-Juan Tian
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Li-Jie He
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Shi-Ren Sun
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chen Huang
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
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10
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Caplan A, Micheletti RG. Advances in cutaneous vasculitis research and clinical care. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:439. [PMID: 33842660 PMCID: PMC8033321 DOI: 10.21037/atm-20-6395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Vasculitis is characterized by inflammation and destruction of blood vessels, resulting in downstream ischemic tissue damage. Diagnosis of vasculitis is a careful exercise in clinical-pathologic correlation, depending upon the clinical manifestations, organs involved, the size of affected blood vessels, imaging, and laboratory findings. While some vasculitis subtypes may be confined to the skin, serious internal organ involvement or underlying disease states may also occur. Accordingly, the skin plays an important role in the diagnostic process and may be prognostically important in some cases, signifying more severe systemic disease. The skin also provides opportunities for tissue-based translational research, improving understanding of disease pathophysiology. Dermatologists, therefore, play a critical role in evaluating vasculitis and helping to advance vasculitis clinical care and research. Recent updates in vasculitis nomenclature and terminology, evidence-based diagnosis, pathogenesis, and investigations of targeted therapies are changing vasculitis research and leading to fundamental shifts in disease management. Treatment advances favoring evidence-based and targeted, rather than broadly immunosuppressive, therapies are in development, while a multicenter trial for skin-limited vasculitis is ongoing. Collaborative multidisciplinary research networks are key to current and future advances in vasculitis research. In this review, we describe recent developments in vasculitis clinical care and research, starting with a discussion of efforts to develop diagnostic and classification criteria, followed by updates on the evaluation and treatment of vasculitis.
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Affiliation(s)
- Avrom Caplan
- Ronald O. Perelman Department of Dermatology; New York University Grossman School of Medicine, New York, NY, USA
| | - Robert G Micheletti
- Departments of Dermatology and Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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11
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Affiliation(s)
- B Hellmich
- Vaskulitiszentrum Süd, Klinik für Innere Medizin, Rheumatologie und Immunologie, Medius-Kliniken - Akademisches Lehrkrankenhaus der Universität Tübingen, Eugenstr. 3, 73230, Kirchheim unter Teck, Deutschland.
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12
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Tian SL, Bai X, Xu PC, Chen T, Gao S, Hu SY, Wei L, Jia JY, Yan TK. Circulating nicotinamide adenine dinucleotide-ubiquinone oxidoreductase chain 6 is associated with disease activity of anti-neutrophil cytoplasmic antibody-associated vasculitis. Clin Chim Acta 2020; 511:125-131. [PMID: 33058842 DOI: 10.1016/j.cca.2020.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 10/07/2020] [Accepted: 10/07/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Increased serum and urinary mitochondrial DNA have been demonstrated in antineutrophil cytoplasmic antibody-associated vasculitis (AAV). Here we investigated the significance of serum nicotinamide adenine dinucleotide-ubiquinone oxidoreductase chain 6 (ND6), which is encoded by mtDNA and can attract neutrophils, in AAV. METHODS Thirty-seven AAV patients (32 patients with positive myeloperoxidase-ANCA and 5 patients with proteinase 3-ANCA) were enrolled. Relationship between serum ND6 and clinico-laboratory characteristics were analyzed. RESULTS The ND6 level of patients was higher than normal people (46.56 ± 23.67 pg/mL vs. 4.95 ± 2.45 pg/mL, P < 0.001) The ND6 levels of patients who needed hemodialysis at disease onset and who had pulmonary hemorrhage (PH) were higher than that of the corresponding controls (P = 0.004 and 0.044 respectively). The ND6 level negatively correlated with the percentages of normal glomeruli in kidney biopsy. The AUC of ROC curve to diagnose hemodialysis and PH was 0.804 and 0.750 respectively. ND6 level positively correlated with Birmingham Vasculitis Activity Score in active disease, and returned to normal after remission. Patients with higher serum ND6 had higher mortality (P = 0.023). CONCLUSIONS Serum ND6 increases in active AAV, and its level correlates with the severity of disease. High ND6 level is associated with severe organ injury and predicts poor prognosis of AAV.
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Affiliation(s)
- Shun-Li Tian
- Department of Geratology, Tianjin Geriatric Institute, Tianjin Medical University General Hospital, Tianjin 300052, China.
| | - Xue Bai
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China.
| | - Peng-Cheng Xu
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China.
| | - Tong Chen
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China.
| | - Shan Gao
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China.
| | - Shui-Yi Hu
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China.
| | - Li Wei
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China.
| | - Jun-Ya Jia
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China.
| | - Tie-Kun Yan
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China.
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13
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Akiyama M, Kaneko Y, Takeuchi T. Characteristics and prognosis of ANCA-positive retroperitoneal fibrosis: A systematic literature review. Autoimmun Rev 2020; 19:102642. [PMID: 32801045 DOI: 10.1016/j.autrev.2020.102642] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 04/03/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Anti-neutrophil cytoplasmic autoantibody (ANCA)-positive retroperitoneal fibrosis (RPF) is extremely rare. This study aimed to clarify the clinical characteristics and prognosis of patients with ANCA-positive RPF. METHODS We conducted a systematic literature review of articles reporting on ANCA-positive RPF from the database inception dates until March 8, 2020. RESULTS We identified 19 patients with ANCA-positive RPF with a mean age of 62 years; a male dominance (68.4%) was noted. Most patients presented with systemic symptoms and/or lower back or abdominal pain. Proteinase 3 (PR3) -ANCA positivity was predominant compared with myeloperoxidase (MPO)-ANCA (63.2% vs. 36.8%, respectively), and all patients showed elevated serum C-reactive protein levels. Of note, 26.7% of patients had isolated RPF without any other ANCA-associated systemic organ involvement. Regarding typical manifestations of ANCA- associated vasculitis, ear, nose, and throat involvement occurred in 26.3%, lung involvement in 36.8%, and kidney involvement (rapidly progressive glomerulonephritis) in 31.6% of patients. Necrosis and granulomatous inflammation, vasculitis, and multinucleated giant cells were pathologically observed in tissue sections of RPF, whereas tertiary lymphoid organ formation was not identified. Glucocorticoids with or without other immunosuppressive treatments were effective in most patients, but 4 patients experienced disease relapse during the clinical course. All relapsed patients were positive for PR3-ANCA. CONCLUSION Clinical features of ANCA-positive RPF are associated with systemic inflammatory components such as fever and elevated serum C-reactive protein levels. ANCA-. positive RPF presents as an "isolated" involved organ in one-third of patients. Immunosuppressive treatments are effective, but the disease can recur, particularly in PR3-ANCA-positive patients.
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Affiliation(s)
- Mitsuhiro Akiyama
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Japan
| | - Yuko Kaneko
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Japan.
| | - Tsutomu Takeuchi
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Japan
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14
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Abstract
PURPOSE OF THE REVIEW Rheumatic diseases usually have very diverse and complex pathophysiology resulting in different clinical phenotypes. Some certain phenotypes cluster together with a common presentation, course, and outcome. Our primary aim is to review the known disease clusters in certain rheumatological conditions. RECENT FINDINGS Cluster analysis has been reported in several rheumatic diseases, Behcet disease being the most common. Five individual clusters together with some clinical associations have been reported in Behcet patients. Certain antibody-phenotype associations and damage clusters have been reported in systemic lupus erythematosus (SLE) patients as well. Although there is no proper cluster analysis, two distinct phenotypes are evident in deficiency of ADA2 (DADA2): those with a polyarteritis nodosa-like vasculopathy and hematological involvement with pure red cell aplasia or bone marrow failure. The variants are claimed to be different regions of this gene for these 2 phenotypes. Lastly, there is a recent paper grouping ANCA-associated vasculitis according to disease phenotype and antibody associations. There are distinct clusters in certain rheumatic diseases which might help us to predict comorbidities, disease course, and treatment response.
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Affiliation(s)
- Erdal Sag
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey
| | - Selcan Demir
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey
| | - Seza Ozen
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey.
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15
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The complexity of classifying ANCA-associated small-vessel vasculitis in actual clinical practice: data from a multicenter retrospective survey. Rheumatol Int 2019; 40:303-311. [PMID: 31385079 DOI: 10.1007/s00296-019-04406-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/29/2019] [Indexed: 10/26/2022]
Abstract
The different sets of criteria for diagnosis or classification of anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV) lead to numerous overlapping and reclassified diagnoses in clinical practice. We designed this study to assess the difficulties in classifying patients with AAV. As a secondary objective, different variables were tested to predict prognosis. We conducted a retrospective chart review in a Western Spain multicentre survey. A total of 115 adult patients diagnosed with AAV from 2002 to 2013 and followed for at least 3 years were included. They were classified according to (1) Chapel Hill Consensus Conference (CHCC), (2) European Medicines Agency algorithm and (3) French Vasculitis Study Group/European Vasculitis Society phenotypes. Fifty-three patients (46%) had neither distinctive histopathological data of a single AAV definition nor any surrogate markers for granulomatous inflammation and thus did not fulfill any diagnostic criteria. Ocular, ear, nose, throat, skin, and lung involvement were more frequent with proteinase 3 (PR3) antibodies, whereas peripheral neuropathy was more frequent with myeloperoxidase (MPO) antibodies. When the disease was severe at diagnosis, the HR for mortality was 10.44. When induction treatment was not given in accordance with the guidelines, the HR for mortality was 4.00. For maintenance treatment, the HR was 5.49 for mortality and 2.48 for relapse. AAV classification is difficult because many patients had neither specific clinical data nor distinctive histological features of a single CHCC definition. A structured clinical assessment of patient severity is the best tool to guide the management of AAV.
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