Abstracts tagged "ACPA"

Abstract Number: 51 • 2019 ACR/ARP Annual Meeting
Cigarette Smoking Has Different Impacts on ACPA and RF Production Depending on Shared Epitope Allele Status in Japanese RA Patients; A Study with the Two Independent Japanese Cohorts (IORRA and KURAMA)
Yuki Ishikawa¹, Motomu Hashimoto ², Katsunori Ikari ³, Koichiro Ohmura ⁴, Masao Tanaka ⁴, Hiromu Ito ⁴, Atsuo Taniguchi ³, Hisashi Yamanaka ³, Tsuneyo Mimori ⁴ and Chikashi Terao ⁵, ¹Joslin Diabes Center, Boston, MA, ²Department of Advanced Medicine for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Kyoto, Japan, ³Tokyo Women’s Medical University, Tokyo, Japan, ⁴Graduate School of Medicine, Kyoto University, Kyoto, Japan, ⁵RIKEN, Tokyo, Japan
Background/Purpose: In rheumatoid arthritis (RA), cigarette smoking affects both rheumatoid factor (RF) and anti-citrullinated cyclic peptide/protein antibody (ACPA) production, but its association in relation to…
Abstract Number: 452 • 2019 ACR/ARP Annual Meeting
Anti-citrullinated Vimentin Antibodies Are Associated to Early Deterioration of Cortical Bone and Volumetric Bone Mineral Density in Finger Joints in RA-at-risk Patients
Georg Schett¹, David Simon ², Axel Hueber ², Holger Bang ³, Jürgen Rech ⁴, Gerhard Kroenke ⁵ and Arnd Kleyer ⁶, ¹Department of Internal Medicine 3, Friedrich Alexander University Erlangen-Nuremberg, Erlangen, Germany, ²Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nuremberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Bayern, Germany, ³Orgentec Diagnostika, 55129 Mainz, Germany, Mainz, ⁴Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nuremberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany, ⁵Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nuremberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Austria, ⁶Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg, University Hospital Erlangen, Erlangen, Germany, Erlangen, Germany
Background/Purpose: Autoimmunity, characterized by the presence of anti-modified protein antibodies (AMPA), recognizing citrullinated, carbamylated or acetylated proteins, as well as rheumatoid factor (RF) precedes the…
Abstract Number: 500 • 2019 ACR/ARP Annual Meeting
The Dysregulation of NK Cells and Non-Conventional NK-T and γδ-T Cells in Individuals at Risk of Developing Rheumatoid Arthritis
Klára Prajzlerová¹, Olga Kryštůfková ², Petra Hánová ³, Hana Hulejová ³, Monika Gregová ¹, Nora Petrovská ¹, Herman Mann ⁴, Karel Pavelka ⁴, Jiří Vencovský ⁴, Ladislav Senolt ⁴ and Mária Filková ¹, ¹Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ²Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Prague, Czech Republic, Prague, Czech Republic, ³Institute of Rheumatology, Prague, Czech Republic, ⁴Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Prague, Czech Republic, Prague 2, Czech Republic
Background/Purpose: The positivity of antibodies against citrullinated proteins (ACPA) precedes the clinical manifestation and significantly increases the risk of rheumatoid arthritis (RA). EULAR characterised individuals…
Abstract Number: 1423 • 2019 ACR/ARP Annual Meeting
Patient-Reported Outcomes of Abatacept in Combination with MTX in Early, MTX-Naïve, ACPA Positive Patients with RA: 1-Year Results from a Phase IIIb Study
Paul Emery¹, Yoshiya Tanaka ², Vivian Bykerk ³, Clifton Bingham ⁴, Thomas Huizinga ⁵, Gustavo Citera ⁶, Joe Zhuo ⁷, Kuan-Hsiang Gary Huang ⁸, Robert Wong ⁷, Sean Connolly ⁸, Yedid Elbez ⁹ and Roy Fleischmann ¹⁰, ¹Leeds Institute of Rheumatic and Musculoskeletal Medicine, Leeds, United Kingdom, ²University of Occupational and Environmental Health Japan, Kitakyushu, Japan, ³Hospital for Special Surgery, New York City, NY, ⁴Johns Hopkins University, Baltimore, MD, ⁵Leiden University Medical Center, Leiden, Netherlands, ⁶Instituto de Rehabilitación Psicofísica, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina, ⁷Bristol-Myers Squibb, Princeton, ⁸Bristol-Myers Squibb, Princeton, NJ, ⁹Excelya, Boulogne-Billancourt, France, ¹⁰Metroplex Clinical Research Center and University of Texas Southwestern Medical Center, Dallas, TX
Background/Purpose: Early biologic use can improve long-term control of RA, and early use of abatacept (ABA) + MTX has demonstrated sustained improvements in selected patient-reported…
Abstract Number: 2859 • 2019 ACR/ARP Annual Meeting
Citrulline Reactive B Cells Are Present in the Lungs of Early Untreated RA
Vijay Joshua¹, Malena Loberg-Haarhaus ¹, Heidi Wähämaa ², Aase Hensvold ², Khaled Amara ¹, Lena Israelsson ¹, Ragnhild Stålesen ¹, Magnus Sköld ³, Johan Grunewald ³, Caroline Grönwall ¹, Vivianne Malmström ¹ and Anca Catrina ⁴, ¹Rheumatology Unit, Department of Medicine, Karolinska University Hospital and Institutet, Stockholm, Sweden., Stockholm, Sweden, ²Rheumatology unit Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden, Stockholm, ³Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Stockholm, Sweden., Stockholm, Sweden, ⁴Rheumatology unit Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden, Stockholm, Sweden
Background/Purpose: Structural changes, increased tissue citrullination, signs of local inflammation and anti-citrullinated protein autoantibodies (ACPA) are present in the pulmonary compartment of early untreated seropositive…
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…

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