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Abstracts tagged "Anti-citrullinated Protein Autoantibodies (ACPAs)"

  • Abstract Number: 0498 • ACR Convergence 2024

    ACPA Subtypes, RF Isotypes, and the Risk of Rheumatoid Arthritis-Associated Interstitial Lung Disease

    Jacob Welch1, Yangyuna Yang1, Joshua Baker2, Katherine Wysham3, Dana Ascherman4, Paul Monach5, Gail Kerr6, Andreas Reimold7, grant Cannon8, Gary Kunkel9, William Robinson10, Michael Duryee1, Geoffrey Thiele1, Ted Mikuls1 and Bryant England1, 1University of Nebraska Medical Center, Omaha, NE, 2University of Pennsylvania, Philadelphia, PA, 3VA PUGET SOUND/UNIVERSITY OF WASHINGTON, Seattle, WA, 4Division of Rheumatology and Clinical Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA, 5VA Boston Healthcare System, Boston, MA, 6Washington DC VAMC/Georgetown and Howard Universities, Washington, DC, 7Dallas VA Medical Center, Dallas, TX, 8University of Utah and Salt Lake City VA, Salt Lake City, UT, 9University of Utah and George E Wahlen VAMC, Salt Lake City, UT, 10Stanford University, Palo Alto, CA

    Background/Purpose: Interstitial lung disease (ILD) is among the most significant extra-articular manifestations of rheumatoid arthritis (RA), clinically affecting 8-15% of RA patients, and accounting for…
  • Abstract Number: 0873 • ACR Convergence 2024

    Epigenetic Control of Pathogenic CD4 T Cell Polarization During Progression to Rheumatoid Arthritis (RA)

    Ziyuan He1, Pravina Venkatesan1, Adam Savage1, Marla Glass1, Lauren Okada2, Upaasana Krishnan2, Christy Bennett1, Nhung Tran2, Yudong He2, Samir Rachid Zaim1, Padmapriyadarshini Ravisankar2, Jessica Garber2, Palak Genge2, Kevin Lee2, Regina Mettey2, Cole Phalen2, Sugandhika Khosa2, Marie Feser3, Fan Zhang4, David Boyle5, Kristine Kuhn4, Kristen Demoruelle6, Cate Speake7, Jane Buckner8, Ananda Goldrath1, Thomas Bumol9, V. Michael Holers10, Peter Skene1, Gary Firestein11, Xiaojun Li1, Kevin Deane12, Troy Torgerson13 and Mark Gillespie1, 1Allen Institute for Immunology, Seattle, WA, 2Allen Institute for Immunology, Seattle, 3Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, 4University of Colorado, Aurora, CO, 5UCSD, La Jolla, CA, 6University of Colorado Anschutz Medical Campus, Golden, CO, 7Benaroya Research Institute at Virginia Mason, Seattle, 8Benaroya Research Institute, Seattle, WA, 9Allen Institute for Immunology, San Diego, CA, 10University of Colorado, Denver, CO, 11University of California, San Diego, San Diego, CA, 12University of Colorado Denver Anschutz Medical Campus, Aurora, CO, 13Allen Institute for Immunology, Enumclaw, WA

    Background/Purpose: Multiple T cell subsets, including Th1, Th17 cells, and Tfh/Tph, contribute to rheumatoid arthritis (RA) pathology. Clinical trials have shown efficacy of T cell…
  • Abstract Number: 0933 • ACR Convergence 2024

    NLRP3 Inflammasome Promotes Release of Peptidyl Arginine Deiminases2 and 4 from Human Neutrophils

    Teneema Kuriakose, Mingxin Yang, Lacie Scaletta and Gary Sims, Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD

    Background/Purpose: Autoantibodies targeting citrullinated proteins (ACPAs) are a characteristic feature and a diagnostic marker in rheumatoid arthritis (RA). The generation of citrullinated protein autoantigens is…
  • Abstract Number: 1349 • ACR Convergence 2024

    Two Composite Cytokine Scores Predict Flare and Drug-free Remission in Patients with Rheumatoid Arthritis

    Jasmine Sim1, Nandhini Ramamoorthi2, Fiona Rayner3, Abbie Degnan1, Imogen Wilson1, Julie Diboll1, Anna Guttman4, Andrew Melville5, Nisha Rathore2, Stefan Siebert5, Iain McInnes6, Carl Goodyear5, Catharien Hilkens1, Andrew Filer7, Karim Raza7, Christopher Buckley8, Arthur Pratt1, James Wason9, Amy Anderson1, Michael Townsend2, Kenneth Baker1 and John Isaacs1, 1Translational and Clinical Research Institute, NIHR Newcastle Biomedical Research Centre, Newcastle University and The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, 2Genentech, South San Francisco, CA, 3Translational and Clinical Research Institute, NIHR Newcastle Biomedical Research Centre, Newcastle University and The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, England, United Kingdom, 4Genentech, South San Franscisco, CA, 5School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom, 6University of Glasgow, College of Medical Veterinary and Life Sciences, Glasgow, United Kingdom, 7Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Birmingham, United Kingdom, 8Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom, 9Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom

    Background/Purpose: Recent studies show that half of patients with RA remission can stop conventional synthetic disease-modifying anti-rheumatic drug (csDMARD) therapy to achieve drug-free remission (DFR),…
  • Abstract Number: 1648 • ACR Convergence 2024

    In Vitro Expansion of ACPA-positive B Cells from Rheumatoid Arthritis Patients and Effect of Small Molecule NF-κB Inhibitors on Differentiation and Survival of (Autoreactive) Memory B Cells into Plasma Cells

    Giulia Frazzei1, Ana Merino Vico2, Jan Piet van Hamburg2, Ronald Van Vollenhoven3 and Sander Tas4, 1Amsterdam University Medical Center, location AMC, Amsterdam, Netherlands, 2Amsterdam UMC, Amsterdam, Netherlands, 3Department of Rheumatology and Clinical Immunology, Amsterdam University Medical Centers, Amsterdam, Netherlands, 4Amsterdam UMC, locatie AMC, Amsterdam, Netherlands

    Background/Purpose: Anti-citrullinated protein antibodies (ACPA) play a role in rheumatoid arthritis (RA) pathogenesis and are associated with disease severity. Detailed analysis of ACPApos B cells…
  • Abstract Number: 1679 • ACR Convergence 2024

    Differential Pharmacodynamic Changes of Circulated Immune Subsets After Treatment with Abatacept or Adalimumab in Patients with ACPA+ Early RA in the AMPLIFIED Study

    Nathanial Eddy1, Jane Buckner2, Paul Emery3, Michael Weinblatt4, Vivian Bykerk5, Andrew Cope6, Gerd Burmester7, Yoshiya Tanaka8, Gustavo Citera9, Peter Nash10, Quentin Dornic11, Peter Schafer12, Sheila Kelly13, Michael Maldonado11 and Jinqi Liu11, 1Bristol Myers Squibb, Princeton, 2Benaroya Research Institute, Seattle, WA, 3University of Leeds, Leeds, United Kingdom, 4Brigham and Women's Hospital/ Harvard Medical School, Waban, MA, 5Hospital For Special Surgery, New York, NY, 6King's College London, London, United Kingdom, 7Department of Rheumatology and Clinical Immunology, Charité – Universitätsmedizin Berlin, Berlin, Germany, 8Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan, 9Instituto de Rehabilitación Psicofísica, Buenos Aires, Argentina, 10Griffith University, Brisbane, Australia, 11Bristol Myers Squibb, Princeton, NJ, 12Bristol Myers Squibb, BELLE MEAD, NJ, 13Bristol Myers Squibb, Doylestown, PA

    Background/Purpose: Despite considerable advances in pharmacologic approaches to RA management, a better understanding of the underlying immunopathology is still needed.1,2 A dysregulated immune system is…
  • Abstract Number: 0039 • ACR Convergence 2024

    Blockade of Soluble and Cell Surface PAD Activity Prevents the Generation of Citrullinated Autoantigens Recognized by RA Patients’ Serum

    Lacie Scaletta1, Teneema Kuriakose1, Sambit Nanda1, Mia Collins2, Erika Darrah3, Iain McInnes4, David Close5 and Gary Sims1, 1Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, 2Translational Science and Experimental Medicine, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden, 3Translational Science and Experimental Medicine, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, 4University of Glasgow, College of Medical Veterinary and Life Sciences, Glasgow, United Kingdom, 5Early Clinical Development, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom

    Background/Purpose: Anti-citrullinated protein autoantibodies (ACPA) promote inflammation and joint tissue injury and define a poor prognostic group of patients with rheumatoid arthritis (RA). Citrullinated autoantigens…
  • Abstract Number: 1871 • ACR Convergence 2024

    A Seropositive RA Polygenic Risk Score Does Not Predict Progression to RA in an ACPA Positive Population

    Tada Vargas1, Lauren Vanderlinden2, Patrick Carry3, Kristen Demoruelle4, Marie Feser1, Katerina Kechris5, Jane Buckner6, William Robinson7, Gary Firestein8, Michael Holers1, Kevin Deane9 and Jill Norris10, 1Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, 2Colorado School of Public Health, Monument, CO, 3Department of Orthopedics, University of Colorado School of Medicine, Aurora, CO, 4University of Colorado Anschutz Medical Campus, Golden, CO, 5Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, 6Benaroya Research Institute, Seattle, WA, 7Division of Immunology and Rheumatology, Stanford University, and VA Palo Alto Health Care System, Stanford, CA, 8University of California, San Diego, San Diego, CA, 9University of Colorado Denver Anschutz Medical Campus, Aurora, CO, 10Colorado School of Public Health, Denver, CO

    Background/Purpose: Serum autoantibodies, such as ACPA and RF, are commonly detectable prior to the development of seropositive clinical RA; however, not all individuals with these…
  • Abstract Number: 0045 • ACR Convergence 2024

    Proteomic Analysis of the Rheumatoid Arthritis Citrullinome Reveals an Enrichment of Citrullinated Complement Proteins

    Khushali Trivedi1, Clarissa Klenke2, Jun Kim1, Jeba Atkia Maisha2, Alina Sememenko1, XIAOBO MENG2, Mario Navarrete1, Hani El-Gabalawy2 and Liam O'Neil2, 1University of Manitoba, Winnipeg, Canada, 2University of Manitoba, Winnipeg, MB, Canada

    Background/Purpose: Citrullination is a key physiological process that drives autoantibody formation in Rheumatoid Arthritis (RA). This irreversible post-translational modification of the amino acid arginine is…
  • Abstract Number: 2168 • ACR Convergence 2024

    Two Year Data on Quality of Life, Pain and Mobility Scores After Rituximab Treatment in the Preclinical Phase of Rheumatoid Arthritis

    Giulia Frazzei1, Sophie Cramer1, Robert Landewé2, Karen Maijer3, Danielle Gerlag4, Paul Tak, MD PhD5, Niek De Vries6, Lisa van Baarsen6, Ronald Van Vollenhoven7 and Sander Tas8, 1Amsterdam University Medical Center, location AMC, Amsterdam, Netherlands, 2Amsterdam University Medical Center, Meerssen, Netherlands, 3Tergooi Hospital, Hilversum, Amsterdam, Netherlands, 4UCB, Cambridge, United Kingdom, 5Candel Therapeutics, Cambridge, United Kingdom, 6Amsterdam UMC, Amsterdam, Netherlands, 7Department of Rheumatology and Clinical Immunology, Amsterdam University Medical Centers, Amsterdam, Netherlands, 8Amsterdam UMC, locatie AMC, Amsterdam, Netherlands

    Background/Purpose: Over the past 10 years, several trials have investigated prevention of rheumatoid arthritis (RA) by disease modifying antirheumatic drug (DMARD) therapies. Early treatment of…
  • Abstract Number: 0046 • ACR Convergence 2024

    Impaired Neutrophil Extracellular Trap (NET) Degradation in Rheumatoid Arthritis (RA) and Pre-clinical RA Is Mediated by Anti-NET Antibodies

    Jeba Atkia Maisha1, Alina Sememenko2, Jun Kim2, Mario Navarrete2, XIAOBO MENG1, Hani El-Gabalawy1 and Liam O'Neil1, 1University of Manitoba, Winnipeg, MB, Canada, 2University of Manitoba, Winnipeg, Canada

    Background/Purpose: Rheumatoid Arthritis (RA) begins after a prolonged preclinical phase which is marked by the development of RA antibodies, typically against citrullinated proteins (ACPA). The…
  • Abstract Number: 2247 • ACR Convergence 2024

    Pro-inflammatory Monocytes and CD11c Expression in ACPA Positive Individuals with Arthralgia and Their Associations with Subclinical Synovitis Preceding the Onset of Arthritis

    Klára Prajzlerová1, Olga Kryštufková2, Petra Hánová1, Nora Růžičková2, Hana Hulejová1, Jiří Vencovský2, Ladislav Šenolt2 and Mária Filková2, 1Institute of Rheumatology, Prague, Czech Republic, 2Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic

    Background/Purpose: Autoantibodies, e.g., against citrullinated proteins (ACPA), increase the risk of clinical arthritis and can be detected years before rheumatoid arthritis (RA) onset. EULAR's definition…
  • Abstract Number: 0056 • ACR Convergence 2024

    Association of Soluble Immune Checkpoint Proteins with the Risk of Developing RA in ACPA-positive At-risk Individuals

    Ryo Motoyama1, Shohei Nakamura1, Eisuke Inoue2, Hideto Takada3, Masayoshi Harigai4 and Yuko okamoto1, 1Tokyo Women's Medical University, Tokyo, Japan, 2Showa University, Tokyo, Japan, 3Tokyo Women's Medical University, Denver, CO, 4International University of Health and Welfare, Tokyo, Japan

    Background/Purpose: ACPA+ individuals without inflammatory arthritis are considered as being in an at-risk state of RA, although further factors are needed to identify individuals with…
  • Abstract Number: 2671 • ACR Convergence 2024

    Subcutaneous Abatacept vs Adalimumab Head-to-Head Comparison in Adults with Early, Dual Seropositive Rheumatoid Arthritis, Positive for the Shared Epitope HLA Class II Risk Alleles, and an Inadequate Response to Methotrexate: Results from a Phase 3 Trial

    Michael Weinblatt1, Paul Emery2, Vivian Bykerk3, Andrew Cope4, Gerd Burmester5, Yoshiya Tanaka6, Gustavo Citera7, Peter Nash8, Quentin Dornic9, Sheila Kelly10 and Michael Maldonado9, 1Brigham and Women's Hospital/ Harvard Medical School, Waban, MA, 2University of Leeds, Leeds, United Kingdom, 3Hospital For Special Surgery, New York, NY, 4King's College London, London, United Kingdom, 5Department of Rheumatology and Clinical Immunology, Charité – Universitätsmedizin Berlin, Berlin, Germany, 6Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan, 7Instituto de Rehabilitación Psicofísica, Buenos Aires, Argentina, 8Griffith University, Brisbane, Australia, 9Bristol Myers Squibb, Princeton, NJ, 10Bristol Myers Squibb, Doylestown, PA

    Background/Purpose: For patients (pts) early in their RA disease course, with a clinical profile characterized by inadequate response to MTX (MTX-IR), high titers of ACPA…
  • Abstract Number: 0057 • ACR Convergence 2024

    Flow Cytometry of Cells Within Induced Sputum from Individuals At-Risk for RA Reveals Relative Expansion of Small Macrophages

    Hideto Takada1, Brian Hattel2, Marie Feser3, LauraKay Moss2, Yuko Okamoto4, Mark Gillespie5, Adam Savage5, Troy Torgerson6, V. Michael Holers7, Kevin Deane8 and Kristen Demoruelle9, 1Tokyo Women's Medical University, Denver, CO, 2University of Colorado Anschutz Medical Campus, Denver, CO, 3Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, 4Tokyo Women's Medical University Division of Rheumatology, Shinjyuku-ku, Tokyo, Japan, 5Allen Institute for Immunology, Seattle, WA, 6Allen Institute for Immunology, Enumclaw, WA, 7University of Colorado, Denver, CO, 8University of Colorado Denver Anschutz Medical Campus, Aurora, CO, 9University of Colorado Anschutz Medical Campus, Golden, CO

    Background/Purpose: Serum elevations of ACPA in the absence of inflammatory arthritis is a well-established risk factor for the future development of clinical RA. The lung…
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Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. Academic institutions, private organizations and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part a scientific presentation or presentation of additional new information that will be available at the time of the meeting) is under embargo until Saturday, November 11, 2023.

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