Abstracts tagged "ACPA"

Abstract Number: 1469 • 2018 ACR/ARHP Annual Meeting
Measurement of Anti-Amyloid β Autoantibodies in Patients with Rheumatoid Arthritis
Masao Sato¹, Masao Takemura², Tomohisa Tani³ and Toshiro Ohashi³, ¹R, Ohashi-Tani Orthopaedic, Gifu, Japan, ²Advanced Diagnostic System Research Laboratory, Fujita Health University, Toyoake, Japan, ³Ohashi-Tani Orthopaedic, Gifu, Japan
Background/Purpose: Amyloid β (Aβ) accumulation in the brain is a risk factor for Alzheimer's disease (AD). The incidence of AD increases with age. Rheumatoid arthritis…
Abstract Number: 8 • 2018 ACR/ARHP Annual Meeting
Repertoire Studies in Rheumatoid Arthritis Reveal B-Cell Distortions and Baseline Shifts in Unmutated IgG
Yan Wang¹, Katy A. Lloyd², Sunithi Gunasekera³, Camilla Eriksson³, Daniel Ramsköld², Karin Lundberg⁴, Per-Johan Jakobsson¹, Ulf Göransson³, Vivianne Malmström¹ and Caroline Grönwall⁵, ¹Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ²Rheumatology Unit, Dept of Medicine, Karolinska Institutet, Stockholm, Sweden, ³Division of Pharmacognosy, Dept. of Medicinal Chemistry, Uppsala University, Uppsala, Sweden, ⁴Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, ⁵Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: The immunological hallmark of rheumatoid arthritis (RA) is autoreactivity to citrullinated proteins and rheumatoid factor activity. Hence, the adaptive immune system and B cells…
Abstract Number: 1470 • 2018 ACR/ARHP Annual Meeting
Russell Bodies and Serological Status in Rheumatoid Arthritis
Michael A. McNamara¹, Susan M. Goodman², Laura T. Donlin³, Dana Orange⁴, Serene Z. Mirza¹, Jackie Szymonifka², Mark P. Figgie⁵, Vivian P. Bykerk² and Edward F. DiCarlo⁶, ¹Rheumatology, Hospital for Special Surgery, New York, NY, ²Hospital for Special Surgery, New York, NY, ³Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, ⁴Rockefeller University, New York, NY, ⁵Surgery, Hospital for Special Surgery, New York, NY, ⁶Laboratory Medicine, Hospital for Special Surgery, New York, NY
Russell Bodies and Serological Status in Rheumatoid Arthritis Background/Purpose: Russell bodies (RBs) are globular aggregates of immunoglobulin produced by plasma cells and identified both within…
Abstract Number: 11 • 2018 ACR/ARHP Annual Meeting
PAD4-Independent Interaction of ACPA with Nuclear Antigens in Apoptotic Cells and Neutrophil Extracellular Traps (NETs) Defines a Subset of Autoantibodies
Gustaf Wigerblad¹, Katy A. Lloyd¹, Peter Sahlström², Karine Chemin², Johanna Steen², Philip J. Titcombe^2,3, Diana Zhou², Ragnhild Stålesen¹, Bianka Marklein⁴, Elena Ossipova², Johan Rönnelid⁵, Luca Piccoli⁶, Antonio Lanzavecchia⁶, Daniel L. Mueller³, Karl Skriner⁴, Lars Klareskog², Fredrik Wermeling¹, Vivianne Malmström² and Caroline Grönwall⁷, ¹Rheumatology Unit, Dept of Medicine, Karolinska Institutet, Stockholm, Sweden, ²Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ³The Center for Immunology, Dept. of Medicine, University of Minnesota Medical School, Minneapolis, MN, ⁴Dept. of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany, ⁵Dept. of Immunology Genetics and Pathology, Uppsala University, Uppsala, Sweden, ⁶Università della Svizzera italiana, Institute for Research in Biomedicine, Bellinzona, Switzerland, ⁷Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Rheumatoid arthritis (RA) associated anti-citrullinated protein autoantibodies (ACPA) bind a wide range of citrullinated proteins with high cross-reactivity. Recent findings suggest that certain, but…
Abstract Number: 1481 • 2018 ACR/ARHP Annual Meeting
Are ACPA Associated with More Bone Loss over Time in Patients with RA?
Emma de Moel¹, Josephine Amkreutz¹, Lotte Heimans², Cornelia F. Allaart³, Tom W.J. Huizinga⁴ and Diane van der Woude⁴, ¹Rheumatology, Leiden University Medical Center, Leiden, Netherlands, ²Internal Medicine, Leiden University Medical Center, Leiden, Netherlands, ³Department of Rheumatology, LUMC, Leiden, Netherlands, ⁴Department of Rheumatology, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Anti-citrullinated protein antibodies (ACPA) are one of the most important serological markers for rheumatoid arthritis (RA) and have been suggested to play a pathophysiologic…
Abstract Number: 14 • 2018 ACR/ARHP Annual Meeting
Individual RA-Derived Monoclonal Anti-Citrullinated Protein Autoantibodies (ACPA) Have Extensive Citrulline Multi-Reactivity Demonstrated By a Large-Scale Protein Array Platform
Peter Sahlström¹, Johanna Steen¹, Madeleine Jenning², Philip J. Titcombe^1,3, Ute Nonhoff^4,5, Ragnhild Stålesen⁶, Bianka Marklein², Daniel L. Mueller³, Zoltan Konthur⁴, Karin Lundberg⁷, Anca I. Catrina⁶, Lars Klareskog¹, Vivianne Malmström¹, Karl Skriner² and Caroline Grönwall⁸, ¹Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ²Dept. of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany, ³The Center for Immunology, Dept. of Medicine, University of Minnesota Medical School, Minneapolis, MN, ⁴Engine GmbH, Hennigsdorf, Germany, ⁵Max Planck Institute of Colloids and Interfaces, Potsdam, Germany, ⁶Rheumatology Unit, Dept of Medicine, Karolinska Institutet, Stockholm, Sweden, ⁷Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, ⁸Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: The presence of serum IgG anti-citrullinated protein autoantibodies (ACPA) in rheumatoid arthritis (RA), is associated with more aggressive disease progression. Although ACPA have been…
Abstract Number: 1487 • 2018 ACR/ARHP Annual Meeting
Correlation between Cytokine Levels and Power-Doppler Ultrasound Activity Is BMI Dependent, and Different in ACPA Positive and ACPA Negative RA with Wrist Arthritis
Ottar Gadeholt¹, Erin Arnold², Corinne Gorman³, Tobias Mueller⁴ and William Arnold², ¹Rheumatology/Immunology, Medical Clinic II, University Clinic Wuerzburg, Wuerzburg, Germany, ²Orthopedics and Rheumatology of the North Shore, Skokie, IL, ³Orthopaedics & Rheumatology of the North Shore, Skokie, IL, ⁴Department of Bioinformatics, University of Wuerzburg, Wuerzburg, Germany
Background/Purpose: Multiple cytokines are assumed to be involved in RA pathogenesis. It has been hypothesized that ACPA-negative RA with wrist affection constitutes a separate entity.…
Abstract Number: 22 • 2018 ACR/ARHP Annual Meeting
Monoclonal Anti-Citrullinated Protein Antibodies Generated from RA-Derived B Cells Recognize Amino Acid Motifs Rather Than Specific Proteins
Johanna Steen¹, Philip J. Titcombe², Bjorn Forsström³, Caroline Grönwall⁴, Anca I. Catrina⁵, Daniel Lightwood⁶, Peter Nilsson⁷, Lars Klareskog¹ and Vivianne Malmström¹, ¹Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ²The Center for Immunology, Dept. of Medicine, University of Minnesota Medical School, Minneapolis, MN, ³SciLifeLab, Royal Technology Highschool,, Stockholm, Sweden, ⁴Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden, ⁵Medicine, Rheumatology Unit, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden, ⁶Antibody-discovery, UCB-Celltech, Slough, United Kingdom, ⁷Affinity Proteomics, SciLifeLab, School of Biotechnology, KTH - Royal Institute of Technology, Stockholm, Sweden, Stockholm, Sweden
Background/Purpose: Rheumatoid arthritis (RA) associated anti-citrullinated protein autoantibodies (ACPA) develop before RA diagnosis, at which point a wide range of citrullinated proteins have been shown…
Abstract Number: 1504 • 2018 ACR/ARHP Annual Meeting
Utility of Serial ACPA Measurements in Rheumatoid Arthritis: Results of a Prospective Cohort Study
Alistair Reid^1,2,3, Michael D Wiese⁴, Robert Metcalf⁵, Mihir D Wechalekar^6,7, Anita Lee^8,9, Catherine Hill^2,10,11, Cindy Hall⁸, Leah McWilliams⁵, Les Cleland⁸ and Susanna Proudman¹², ¹Rheumatology, Royal Adelaide Hospital, NORTH ADELAIDE, Australia, ²Medicine, The University of Adelaide, Adelaide, Australia, ³Medicine, University of Wollongong, Wollongong, Australia, ⁴School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia, ⁵Rheumatology Unit, Royal Adelaide Hospital, South Australia, Adelaide, Australia, ⁶Royal Adelaide Hospital, Adelaide, Australia, ⁷Rheumatology, Flinders University, Adelaide, Australia, ⁸Rheumatology, Royal Adelaide Hospital, Adelaide, Australia, ⁹Rheumatology, University of Adelaide, Adelaide, Australia, ¹⁰The Queen Elizabeth Hospital, Adelaide, Australia, ¹¹Rheumatology Unit, Royal Adelaide Hospital, Adelaide, Australia, ¹²Royal Adelaide Hospital, Rheumatology Unit and University of Adelaide, Discipline of Medicine, Adelaide, Australia
Background/Purpose: Anti-citrullinated peptide antibody (ACPA) and rheumatoid factor (RF) define “seropositive” rheumatoid arthritis (RA). Both predict disease course, development of extra-articular features and treatment outcomes.…
Abstract Number: 54 • 2018 ACR/ARHP Annual Meeting
In a Macaque Model of RA By Immunization with Citrullinated Peptides, the Valine in the 11 Position of the DRB1 Molecule Has Greater Impacts on T-Cell Response to Citrullinated Peptides Than the 70-74 Position in the Shared Epitope
Samuel Bitoun¹, Pierre Roques², Roger Le Grand³ and Xavier Mariette⁴, ¹INSERM U1184, IMVA, Paris Sud University,LabEx LERMIT, Le Kremlin Bicêtre, France, ²Immunology of viral infections and autoimmune diseases, IDMIT Infrastructure CEA - Université Paris Sud - INSERM U1184, Fontenay-Aux-Roses,, France, ³Immunology of viral infections and autoimmune diseases, IDMIT Infrastructure CEA - Université Paris Sud - INSERM U1184, Fontenay-Aux-Roses, France, ⁴Rheumatology, Université Paris Sud, Le Kremlin Bicêtre, France
Background/Purpose: Among genetic risk factors of RA, HLA class II molecules confers the highest risk of ACPA positive RA. The shared epitope (SE) hypothesis that…
Abstract Number: 1826 • 2018 ACR/ARHP Annual Meeting
From Cancer to Autoimmunity : A New Model of Rheumatoid Arthritis Emerging from a Constitutional Genetic Approach Used in Low Penetrance Cancers
Geraldine Falgarone^1,2, Morad El Bouchtaoui³, Marcio Do Cruzeiro⁴, Christophe Leboeuf^5,6,7, Irmine Loisel-Ferreira^5,6, Carèle Frédonie⁷, Chrystophe Ferreira⁸, Rachida Ait El Far⁵, Marc Espié⁹, Bruno Cassinat¹⁰, Jean-Jacques Kiladjian¹¹, Jean-Paul Feugeas^12,13, Anne Janin^5,6,14 and Guilhem Bousquet^2,5,15, ¹HUPSSD, Avicenne Hospital, Rheumatology, APHP, Bobigny, France, ²Paris 13 University, SMBH, Bobigny, France, ³INSERM UMR-S 1165, PARIS, France, ⁴Plateforme de Recombinaison Homologue, Institut Cochin, INSERM U1016, Paris, France, ⁵INSERM UMR-S 1165, Paris, France, ⁶Université Paris Diderot, Paris, France, ⁷INSERM U944, Paris, France, ⁸Plateforme ANIMA5, Université Paris Descartes, Paris, France, ⁹Centre des Maladies du Sein, APHP, Hôpital Saint-Louis, Paris, France, ¹⁰Laboratoire de BIologie Cellulaire, APHP, Hôpital Saint-Louis, Paris, France, ¹¹Centre d'Inverstigation Clinique, APHP, Hôpital Saint-Louis, Paris, France, ¹²INSERM U1137, Paris, France, ¹³Département de Biologie, Université Franche-Comté, Besançon, France, ¹⁴Service de Pathologie, APHP, Hôpital Saint-Louis, Paris, France, ¹⁵Service d'Oncologie médicale, APHP, Hôpital Avicenne, Bobigny, France
Background/Purpose: High-speed technologies for genome sequencing have completely changed the study of disease genetics, but with limited knowledge of the functional value of most genetic…
Abstract Number: 67 • 2018 ACR/ARHP Annual Meeting
Intestinal Inflammation and Netosis Associate with the Presence of Stool IgA ACPA in Subjects at-Risk for RA
Widian Jubair¹, Elizabeth A. Bemis², Yuko Okamoto³, Marie L. Feser³, Jennifer Seifert³, M. Kristen Demoruelle³, Jill M. Norris⁴, Kevin D. Deane³, V. Michael Holers⁵ and Kristine A Kuhn^1,6, ¹Rheumatology, University of Colorado Denver, Aurora, CO, ²Epidemiology, Colorado School of Public Health, Aurora, CO, ³Division of Rheumatology, University of Colorado Denver, Aurora, CO, ⁴Department of Epidemiology, Colorado School of Public Health, Aurora, CO, ⁵Rheumatology Division, University of Colorado Denver, Aurora, CO, ⁶Mucosal Inflammation Program, University of Colorado Denver, Aurora, CO
Background/Purpose: Anti-citrullinated protein antibodies (ACPA) and inflammation characterized by neutrophil extracellular trap (NET)osis have been detected at mucosal sites such as the lung and periodontium…
Abstract Number: 1976 • 2018 ACR/ARHP Annual Meeting
Sequencing of the MHC Region Defines HLA-DQA1 As Driven Risk for Anti-Citrullinated Protein Antibodies (ACPA)-Positive Rheumatoid Arthritis in Han Population
Jianping Guo¹, Tao Zhang², Hongzhi Cao², Xiaowei Li², Mengru Liu¹, Yundong Zou¹ and Zhan-Guo Li¹, ¹Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China, ²Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen, China
Background/Purpose: The strong genetic contribution of the major histocompatibility complex (MHC) to rheumatoid arthritis (RA) susceptibility has been generally attributed to HLA-DRB1. However, due to…
Abstract Number: 72 • 2018 ACR/ARHP Annual Meeting
Altered Serologic Responses to Epstein Barr Virus Precede Clinical Disease Development in Rheumatoid Arthritis
Heather M. Berens¹, Elizabeth A. Bemis², M. Kristen Demoruelle¹, John B. Harley³, Judith A. James⁴, Jess Edison⁵, Kevin D. Deane¹, Jill M. Norris⁶ and V. Michael Holers¹, ¹Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, ²Epidemiology, Colorado School of Public Health, Aurora, CO, ³Center for Autoimmune Genomics and Etiology (CAGE), Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ⁴University of Oklahoma Health Sciences Center, Oklahoma City, OK, ⁵Division of Rheumatology, Walter Reed National Military Medical Center, Bethesda, MD, ⁶Department of Epidemiology, Colorado School of Public Health, Aurora, CO
Background/Purpose: EBV infects B cells and is associated with several autoimmune diseases, including RA. Prior studies have shown that patients with active classified RA…
Abstract Number: 2045 • 2018 ACR/ARHP Annual Meeting
Specific Anti-Citrullinated Protein Antibodies Profiles Are Associated with Rheumatoid Arthritis Related Interstitial Lung Disease
Pierre-Antoine Juge¹, Leonor Nogueira², Guy Serre², René-Marc Flipo³, Lidwine Wemeau-Stervinou⁴, Thierry Schaeverbeke⁵, Claire Dromer⁶, Sylvain Adam-Marchand⁷, Marie-Christophe Boissier⁸, Hilario Nunes⁹, Raphaël Borie¹⁰, Bruno Crestani¹⁰ and Philippe Dieude¹⁰, ¹Rhumatologie, Hôpital Bichat - Claude Bernard, Paris, France, ²Unité Différenciation Épidermique et Autoimmunité Rhumatoïde, Unité Mixte de Recherche, INSERM, Toulouse, France, ³Hôpital Roger Salengro, Lille, France, ⁴Pneumologie, CHRU de Lille, Lille, France, ⁵Department of Rheumatology, Bordeaux University Hospital, BORDEAUX, France, ⁶Imagerie Thoracique et Cardiovasculaire, CHU Bordeaux, Bordeaux, France, ⁷Pneumology, Centre Hospitalier Universitaire de Tours, Tours, France, ⁸74 rue Marcel Cachin, INSERM, Bobigny, France, ⁹Pulmonary diseases department, Avicenne Hospital (AP-HP), Bobigny, France, ¹⁰Université Paris-Diderot, Paris, France
Background/Purpose: The identification of peripheral blood markers of rheumatoid arthritis-associated interstitial lung disease (RA-ILD) may facilitate an earlier diagnosis and provide insight regarding the pathogenesis…

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