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Anti neutrophil cytoplasmic antibody

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https://www.readbyqxmd.com/read/28240246/characterization-of-the-cd177-interaction-with-the-anca-antigen-proteinase-3
#1
Uwe Jerke, Stephen F Marino, Oliver Daumke, Ralph Kettritz
Proteinase 3 is a serine protease found in neutrophil granules and on the extracellular neutrophil membrane (mPR3). mPR3 is a major antigen for anti-neutrophil cytoplasmic antibodies (PR3-ANCAs), autoantibodies causing fatal autoimmune diseases. In most individuals, a subpopulation of neutrophils also produce CD177, proposed to present additional PR3 on the surface, resulting in CD177(neg)/mPR3(low) and CD177(pos)/mPR3(high) neutrophil subsets. A positive correlation has been shown between mPR3 abundance, disease incidence, and clinical outcome...
February 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28231569/biomarkers-in-autoimmune-salivary-gland-disorders-a-review
#2
Benedikt Hofauer, Klaus Thuermel, Constanze Gahleitner, Andreas Knopf
Salivary glands are frequent sites of manifestations of autoimmune disorders in the head and neck. Sjögren syndrome, sarcoidosis, granulomatosis with polyangiitis, and IgG4-related sialadenitis represent the most important autoimmune salivary gland disorders. Due to the lack of specific symptoms, diagnosis of these conditions remains a challenge. Diagnosis is usually based on classification criteria involving clinical tests, histopathological evaluation, and serological examinations. Depending on the disease, biomarkers are of different value and have to be interpreted carefully...
2017: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/28229825/anca-associated-pauci-immune-glomerulonephritis-always-pauci-immune
#3
Valeria Scaglioni, Marina Scolnik, Luis J Catoggio, Silvia B Christiansen, Carlos F Varela, Gustavo Greloni, Guillermo J Rosa-Diez, Enrique R Soriano
OBJECTIVES: Anti-neutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis (GN) is considered "pauci-immune" with absent or mild glomerular tuft staining for immunoglobulin (Ig) and/or complement. However, it is not unusual to see some immune deposits (ID) within glomeruli on immunofluorescence (IF). We determined to evaluate the prevalence and clinical significance of immune deposits in ANCA-associated GN. METHODS: We included all patients with ANCA associated vasculitis with renal biopsies between January 2002 and May 2014: granulomatosis with polyangiitis, eosinophilic granulomatosis with polyangiitis, microscopic polyangiitis and renal limited vasculitis...
January 31, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28217942/hypertrophic-pachymeningitis-is-a-characteristic-manifestation-of-granulomatosis-with-polyangiitis-a-retrospective-study-of-anti-neutrophil-cytoplasmic-antibody-associated-vasculitis
#4
Yasuhiro Shimojima, Dai Kishida, Akiyo Hineno, Masahide Yazaki, Yoshiki Sekijima, Shu-Ichi Ikeda
AIM: To elucidate the characteristics of patients with hypertrophic pachymeningitis (HP) in a population with anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). METHODS: We retrospectively investigated the clinical records of 39 patients who were diagnosed with AAV. To determine the characteristics of HP in AAV, the epidemiological and clinical data from patients with HP were statistically compared with those from patients without HP. RESULTS: Of 39 patients with AAV, seven (17...
February 20, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28206609/sphingosine-1-phosphate-and-its-receptors-in-anti-neutrophil-cytoplasmic-antibody-associated-vasculitis
#5
Xiao-Jing Sun, Chen Wang, Lu-Xia Zhang, Feng Yu, Min Chen, Ming-Hui Zhao
No abstract text is available yet for this article.
February 16, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28205311/management-of-cardiovascular-risk-factors-in-patients-with-anca-associated-vasculitis
#6
Carsten Paul Bramlage, Juliane Kröplin, Manuel Wallbach, Joan Minguet, Katherine Helen Smith, Stephan Lüders, Joachim Schrader, Susan Patschan, Oliver Gross, Cornelia Deutsch, Peter Bramlage, Gerhard Anton Müller, Michael Koziolek
OBJECTIVES: Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is accompanied by increased cardiovascular (CV) risk. Treatment of AAV patients includes the management of conventional CV risk factors, primarily hypertension and hypercholesterolemia, while lipoprotein(a) (LP(a)) is an emerging potential target. METHODS: We performed a multicenter, retrospective study in Germany. Patients were considered if they were between 18 and 90 years old and presented with AAV...
February 16, 2017: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/28196580/anti-neutrophil-cytoplasmic-antibody-associated-vasculitis-with-renal-involvement-analysis-of-89-cases
#7
Fernando Caravaca-Fontán, Estefanía Yerovi, María Delgado-Yagu E, Cristina Galeano, Saúl Pampa-Saico, Maria Teresa Tenorio, Fernando Liaño
INTRODUCTION: The anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis with renal involvement are associated with high morbi-mortality. In this study we analyse if the prognosis of these diseases have improved in recent years, and which factors influence the outcomes. MATERIAL AND METHODS: Retrospective single-centre observational study, which included all patients diagnosed with microscopic polyangiitis and granulomatosis with polyangiitis with renal involvement in the last 25 years...
January 6, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28187981/deglycosylation-of-myeloperoxidase-uncovers-its-novel-antigenicity
#8
Jun-Tao Yu, Jian-Nan Li, Jia Wang, Xiao-Yu Jia, Zhao Cui, Ming-Hui Zhao
Myeloperoxidase (MPO) is a common target antigen of anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis and is recognized in one-third of patients with anti-glomerular basement membrane (GBM) disease. Our previous study identified over 60% of patients with anti-GBM disease recognizing linear peptides of MPO heavy chain. Here we tested whether aberrant glycosylation alters MPO antigenicity through exposure of neo-epitopes on MPO molecules. Atypical glycosylated MPO molecules, including all possible glycosylation types, were prepared by exoglycosidase and endoglycosidase treatments...
February 7, 2017: Kidney International
https://www.readbyqxmd.com/read/28166084/unexpected-complication-of-cocaine-associated-anti-neutrophil-cytoplasmic-antibody-vasculitis-related-to-persistent-in-hospital-cocaine-use
#9
Travis D Olives, Rebecca L Kornas, Russell Fujisawa, Jon B Cole
INTRODUCTION: Levamisole-adulterated cocaine has been implicated in anti-neutrophil cytoplasmic antibody (ANCA) vasculitis. We present a case of spontaneous intraperitoneal hemorrhage, an unexpectedly severe complication of cocaine-related ANCA vasculitis, developing late during hospitalization. CASE REPORT: An adult male with a history of hepatitis C, distant cocaine use, and limited health care presented to a local emergency department (ED) with volume overload, renal failure, hyperkalemia and non-anion gap metabolic acidosis...
February 3, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/28162159/-the-value-of-different-antibodies-detection-in-diagnosis-of-rheumatism-with-uveitis
#10
X F Xu, J Zhang, L Cui, Y H Wang, Y Yue, L Chi, J Bai, H M Li, X X Lu
Objective: To investigate the value of HLA-B27 antigen, antinuclear antibody (ANA), anti-dsDNA and Anti-Neutrophil Cytoplasmic Antibodies (ANCA) detection in diagnosis of rheumatism with uveitis. Methods: Seven hundred and twenty four newly diagnosed patients with non-infection uveitis in Beijing Tongren Hospital from March 2012 to March 2016 who long-term lived in Beijing and its surrounding areas were continuously enrolled. HLA-B27 antigen expressions in peripheral blood lymphocytes and ANA, anti-dsDNA and ANCA levels in serum were tested...
January 24, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28152491/aggregatibacter-aphrophilus-infective-endocarditis-confirmed-by-broad-range-pcr-diagnosis-a-case-report
#11
Koji Hirano, Toshiya Tokui, Masahiro Inagaki, Taro Fujii, Yasumi Maze, Hirokazu Toyoshima
INTRODUCTION: Aggregatibacter aphrophilus is a rare cause of infective endocarditis. This pathogen is difficult to identify with common culture methods, which can lead to incorrect diagnosis and treatment. PRESENTATION OF CASE: A 72-year-old woman was admitted to a community hospital with a persistent high fever and deteriorating renal function. Based on negative blood culture and positive serum proteinase 3 anti-neutrophil cytoplasmic antibody (PR3-ANCA), acute renal failure associated with ANCA-rerated vasculitis was initially suspected...
January 19, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28138552/anti-myeloperoxidase-antibodies-attenuate-the-monocyte-response-to-lps-and-shape-macrophage-development
#12
Reena J Popat, Seran Hakki, Alpesh Thakker, Alice M Coughlan, Julie Watson, Mark A Little, Corinne M Spickett, Paul Lavender, Behdad Afzali, Claudia Kemper, Michael G Robson
Anti-neutrophil cytoplasmic antibody (ANCA) vasculitis is characterized by the presence of autoantibodies to myeloperoxidase and proteinase-3, which bind monocytes in addition to neutrophils. While a pathological effect on neutrophils is acknowledged, the impact of ANCA on monocyte function is less well understood. Using IgG from patients we investigated the effect of these autoantibodies on monocytes and found that anti-myeloperoxidase antibodies (MPO-ANCA) reduced both IL-10 and IL-6 secretion in response to LPS...
January 26, 2017: JCI Insight
https://www.readbyqxmd.com/read/28124760/neutrophil-extracellular-traps-in-neuropathy-with-anti-neutrophil-cytoplasmic-autoantibody-associated-microscopic-polyangiitis
#13
Hiroki Takeuchi, Teruaki Kawasaki, Kazuo Shigematsu, Kazuyuki Kawamura, Nobuyuki Oka
To clarify the roles of neutrophils in anti-neutrophil cytoplasmic autoantibody (ANCA)-associated vasculitic neuropathy, we studied neutrophil extracellular traps (NETs) in peripheral nerve vasculitis. Stored nerve samples from 17 patients with microscopic polyangiitis (MPA) were immunohistochemically analyzed using antibodies for citrullinated histone H3 (citH3) and various neutrophil enzymes. We defined merged citH3 and extracellularly released myeloperoxidase (MPO) as NET formation. We also compared NET formation between MPO-ANCA-positive/negative MPA and rheumatoid arthritis (RA)-associated vasculitic neuropathy...
January 26, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28119817/a-case-of-proteinase-3-anti-neutrophil-cytoplasmic-antibody-pr3-anca-positive-igg4-related-lung-disease
#14
Hirokazu Touge, Katsuyuki Tomita, Akira Yamasaki, Eiji Shimizu
IgG4-related lung disease (IgG4-RLD) is a rare and chronic progressive autoimmune disease. We report a case of IgG4-related inflammatory pseudo-tumor of the lung that was seropositive for proteinase 3 anti-neutrophil cytoplasmic antibody (PR3-ANCA). A 61-year-old male had a mass lesion in the right lower lung field in chest X-ray. Transbronchial lung biopsy resulted in a pathological diagnosis of IgG4-RLD. The condition was improved by hormonal therapy.
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28066016/thrombocytopenia-associated-with-olanzapine-a-case-report-and-review-of-literature
#15
Swapnajeet Sahoo, Himanshu Singla, M Spoorty, Pankaj Malhotra, Sandeep Grover
There is limited literature on olanzapine-associated thrombocytopenia. In this report, we present a case of a 32-year-old female, suffering from persistent delusional disorder who had thrombocytopenia (46,000/mm(3)) with the use of olanzapine 25 mg/day, 6 weeks after starting medication. Blood film did not reveal any evidence of any dysplastic cells, disturbance in the count of other cell lines, and autoimmune workup including antinuclear antibodies and anti-neutrophil cytoplasmic antibodies were found to be negative...
July 2016: Indian Journal of Psychiatry
https://www.readbyqxmd.com/read/28062909/paediatric-anti-neutrophil-cytoplasmic-antibody-anca-associated-vasculitis-an-update-on-renal-management
#16
REVIEW
Lucy A Plumb, Louise Oni, Stephen D Marks, Kjell Tullus
The anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV) are a group of disorders characterized by necrotizing inflammation of the small to medium vessels in association with autoantibodies against the cytoplasmic region of the neutrophil. Included in this definition are granulomatosis with polyangiitis (GPA, formerly known as Wegener's granulomatosis), microscopic polyangiitis (MPA) and eosinophilic granulomatosis with polyangiitis (formerly known as Churg-Strauss syndrome). AAV are chronic, often relapsing diseases that can be organ or life threatening...
January 6, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28056474/-granulomatosis-with-polyangiitis
#17
Anja Kerstein, Konstanze Holl-Ulrich, Antje Müller, Gabriela Riemekasten, Peter Lamprecht
Granulomatosis with polyangiitis (GPA) is a potentially life-threatening, rare disease. The etiology is unknown. GPA is histomorphologically characterized by extravascular necrotizing granulomatous inflammation and a systemic necrotizing vasculitis of small to medium-sized vessels. Clinically, a pulmonary-renal syndrome with pulmonary infiltrates, alveolar hemorrhage and a rapidly progressive glomerulonephritis is seen in about 80% of the cases with generalized disease. GPA is associated with proteinase 3-specific anti-neutrophil cytoplasmic autoantibodies (PR3-ANCA)...
January 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28053275/clinical-associations-with-venous-thromboembolism-in-anti-neutrophil-cytoplasm-antibody-associated-vasculitides
#18
Andreas Kronbichler, Johannes Leierer, Gisela Leierer, Gert Mayer, Alina Casian, Peter Höglund, Kerstin Westman, David Jayne
OBJECTIVE: To assess potential associations for the development of venous thromboembolic events in patients with ANCA-associated vasculitides (AAV). METHODS: Four hundred and seventeen patients enrolled to participate in randomized controlled trials conducted by the European Vasculitis Society were identified. Univariate and multivariate analyses were performed to validate previously proposed and identify novel risks associated with venous thromboembolism (VTE) in AAV...
January 3, 2017: Rheumatology
https://www.readbyqxmd.com/read/28029757/identification-of-functional-and-expression-polymorphisms-associated-with-risk-for-anti-neutrophil-cytoplasmic-autoantibody-associated-vasculitis
#19
Peter A Merkel, Gang Xie, Paul A Monach, Xuemei Ji, Dominic J Ciavatta, Jinyoung Byun, Benjamin D Pinder, Ai Zhao, Jinyi Zhang, Yohannes Tadesse, David Qian, Matthew Weirauch, Rajan Nair, Alex Tsoi, Christian Pagnoux, Simon Carette, Sharon Chung, David Cuthbertson, John C Davis, Paul F Dellaripa, Lindsy Forbess, Ora Gewurz-Singer, Gary S Hoffman, Nader Khalidi, Curry Koening, Carol A Langford, Alfred D Mahr, Carol McAlear, Larry Moreland, E Philip Seo, Ulrich Specks, Robert F Spiera, Antoine Sreih, E William St Clair, John H Stone, Steven R Ytterberg, James T Elder, Jia Qu, Toshiki Ochi, Naoto Hirano, Jeffrey C Edberg, Ronald J Falk, Christopher I Amos, Katherine A Siminovitch
OBJECTIVE: To identify risk alleles relevant to the cause and biology of anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). METHODS: We conducted a genome-wide association and subsequent replication study including 1986 cases of AAV [granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA)] and 4723 controls. Meta-analysis of these datasets and functional annotation of identified risk loci were performed and candidate disease variants with unknown functional effects investigated for impact on gene expression and/or protein function...
December 28, 2016: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28027277/multi-organ-involvement-confounding-the-diagnosis-of-bartonella-henselae-infective-endocarditis-in-children-with-congenital-heart-disease
#20
Christopher P Ouellette, Sarita Joshi, Karen Texter, Preeti Jaggi
Two children with congenital heart disease status-post surgical correction presented with prolonged constitutional symptoms, hepatosplenomegaly and pancytopenia. Concern for malignancy prompted bone marrow biopsies that were without evidence thereof. In case #1, echocardiography identified a multilobulated vegetation on the conduit valve. In case #2, transthoracic, transesophageal and intracardiac echocardiography were performed and were without evidence of cardiac vegetations, however pulmonic emboli raised concern for infective endocarditis...
December 23, 2016: Pediatric Infectious Disease Journal
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