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

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…
Abstract Number: 0064 • ACR Convergence 2024
Anti-Citrullinated Protein Antibodies Arise During Affinity Maturation of Germline-Encoded Antibodies to Carbamylated Proteins in Rheumatoid Arthritis
Marta Escarra-Senmarti¹, Michael Chungyoun², Dylan Ferris¹, Jeffrey Gray² and Felipe Andrade³, ¹The Johns Hopkins University School of Medicine, Baltimore, MD, ²The Johns Hopkins Whiting School of Engineering, Baltimore, MD, ³The Johns Hopkins University School of Medicine, Timonium, MD
Background/Purpose: The production of antibodies to modified self-antigens is a hallmark in rheumatoid arthritis (RA). Antibodies to citrullinated (ACPAs) and carbamylated proteins (CarP) are of…
Abstract Number: 1751 • ACR Convergence 2023
Profiling of Anti-PAD IgG and IgA in Patients from the Head-to-head Adalimumab vs Abatacept Rheumatoid Arthritis AMPLE Trial and Matched Healthy Controls
Namit Kumar¹, Xueer Chen², Mary Ann Aure³, Andy Ishii⁴, Laura Martinez-Prat⁵, chelsea Bentow⁴, Jasmine Saini², Michael Mahler⁴ and Laurence Menard², ¹Bristol Myers Squibb, San Diego, CA, ²Bristol Myers Squibb, Princeton, NJ, ³Werfen, Chula Vista, CA, ⁴Werfen, San Diego, CA, ⁵Werfen Autoimmunity, Sant Cugat del Vallès, Spain
Background/Purpose: A hallmark of rheumatoid arthritis (RA) is the presence of anti-citrullinated protein antibodies (ACPA) targeting neoantigens which are generated by a family of enzymes…
Abstract Number: 1758 • ACR Convergence 2023
Identification of Circulating Autoantibodies Associated with ACPA Status in Early Rheumatoid Arthritis
Lucía Lourido¹, Vijay Joshua², Monika Hansson³, Ronald Sjöberg⁴, Elisa Pin⁴, Cristina Ruiz-Romero⁵, Peter Nilsson⁴, Lars Klareskog² and Francisco J. Blanco⁶, ¹Unidad de Proteómica. Grupo de Investigación de Reumatología (GIR). Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC). C/ As Xubias de Arriba 84, 15006, A Coruña, Spain, ²Karolinska Institutet, Stockholm, Sweden, ³Division for Rheumatology, Department of Medicine (Solna) Karolinska Institutet, Stockholm, Sweden, ⁴Department of Protein Science, SciLifelab, KTH Royal Institute of Technology, Stockholm, Sweden, ⁵1) Unidad de Proteómica. Grupo de Investigación de Reumatología (GIR). Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC). C/ As Xubias de Arriba 84, 15006, A Coruña, España. 4) Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN). Av. Monforte de Lemos, 3-5. Pabellón 11,28029, Madrid, Spain, ⁶Rheumatology department, Complexo Hospitalario Universitario A Coruña (CHUAC). Instituto de Investigación Biomédica A Coruña (INIBIC), A Coruña, Spain
Background/Purpose: Rheumatoid arthritis (RA) is associated with the presence of autoantibodies being the anti-citrullinated protein antibodies (ACPAs) the hallmark as they are present in almost…
Abstract Number: 2124 • ACR Convergence 2023
Expansion of Atypical B Cells Accompanies Rheumatoid Arthritis-like Immune Dysregulation in ACPA+ At-risk Individuals
Adam Savage¹, Ziyuan He¹, Marla Glass¹, Julian Reading¹, LauraKay Moss², Marie Feser², Vlad Tsaltskan³, Katherine Nguyen Nguyen³, Kristen Demoruelle², kristine Kuhn⁴, David Boyle³, Cate Speake⁵, Xiao-Jun Li¹, Peter Skene¹, Troy Torgerson¹, Tom Bumol¹, V. Michael Holers⁶, Jane Buckner⁷, Gary Firestein⁸, kevin Deane² and Mark Gillespie¹, ¹Allen Institute for Immunology, Seattle, WA, ²University of Colorado Anschutz Medical Campus, Aurora, CO, ³University of California San Diego, La Jolla, CA, ⁴University of Colorado School of Medicine, Aurora, CO, ⁵Benaroya Research Institute, Seattle, WA, ⁶University of Colorado, Denver, CO, ⁷Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁸University of California San Diego, San Diego, CA
Background/Purpose: Seropositive RA is preceded by an at-risk stage characterized by elevated circulating autoantibodies (AAb), including ACPA, in otherwise healthy individuals without clinically-apparent inflammatory arthritis.…
Abstract Number: 2144 • ACR Convergence 2023
Pharmacodynamic Effects of Nipocalimab in Patients with Moderate to Severe Active Rheumatoid Arthritis (RA): Results from the Multicenter, Randomized, Double-blinded, Placebo-controlled Phase 2A IRIS-RA Study
Rohit Panchakshari¹, Matthew Loza², Thomas Huizinga³, Georg Schett⁴, Keying Ma², Jocelyn H. Leu², Sophia G. Liva², Fowzia Ibrahim⁵, Bei Zhou⁶, Qingmin Wang², Ricardo Rojo Cella², Chetan S. Karyekar², Kaiyin Fei², Carolyn Cuff⁷ and Sheng Gao², ¹Janssen Research & Development, LLC, La Jolla, CA, ²Janssen Research & Development, LLC, Spring House, PA, ³Leiden University Medical Center, Leiden, Netherlands, ⁴Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany, ⁵Janssen Research & Development, LLC, High Wycombe, United Kingdom, ⁶Janssen Research & Development, LLC, Chesterbrook, PA, ⁷Janssen Research & Development, LLC, Cambridge, MA
Background/Purpose: Nipocalimab is a fully human, immunoglobulin G (IgG) 1 monoclonal antibody that blocks the neonatal crystallizable fragment receptor (FcRn), thereby lowering IgG levels. RA…
Abstract Number: 2193 • ACR Convergence 2023
Anti-citrullinated Protein Antibodies in Sjögren’s Syndrome Define a Subset of Patients with Lower B Cell Activation Markers and Higher Risk of Lung Involvement
Augusto Silva¹, Filipa Costa², Mariana Silva², Giovanni Fulvio³, Matilde Bandeira², Manuel Silvério-António⁴, Nikita Khmelinskii², Chiara Baldini³ and Vasco Romão², ¹Santa Maria Hospital, Maceira, Portugal, ²Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal, ³University of Pisa, Pisa, Italy, ⁴Hospital Santa Maria, Lisboa, Portugal
Background/Purpose: Extraglandular manifestations may occur in up to 40-50% of patients with SS, including inflammatory arthralgia and chronic polyarthritis (1-3). ACPA are prototypical markers of…
Abstract Number: 2433 • ACR Convergence 2023
Longitudinal Multi-Omics Single Cell Analysis Reveals Abatacept Treatment Shifts Peripheral Lymphocyte Subpopulations in Seropositive RA with Reduction of Mature B Cells and Retention of Transitional and Naive B Cells
Gregg Silverman¹, William Rigby², Helena Jun¹, Jasmine Shwetar¹, Katie Tumang¹, Sergei Koralov³, Ellie Ivanova¹, David Mieles¹, Sladjana Skopelia-Gardner⁴ and Kelly Ruggles¹, ¹NYU Grossman School of Medicine, New York, NY, ²Hitchcock-Dartmouth Medicine Center, Hanover, NH, ³NYU Grossman Schoolof Medicine, New York, NY, ⁴Hitchcock-Dartmouth Medicine Center, Lebanon, NH
Background/Purpose: Biologic agents of diverse molecular mechanisms of action are approved for RA, but we do not have a full understanding of the implications of…
Abstract Number: 0389 • ACR Convergence 2023
The Role of anti-CCP3 Antibodies in anti-CCP2 Antibody Negative Patients with Musculoskeletal Symptoms
Andrea Di Matteo¹, Kulveer Mankia², Leticia Garcia-Montoya², Jacqueline Nam², Sana sharrack³, Michael Mahler⁴ and Paul Emery³, ¹Polytechnic University of Marche, Jesi, Italy, ²Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, United Kingdom, ³Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom, ⁴Werfen, San Diego, CA
Background/Purpose: To investigate, in primary care, whether testing anti-CCP3 antibodies in anti-CCP2 negative individuals with musculoskeletal (MSK) symptoms, improved the prediction of inflammatory arthritis (IA)/rheumatoid…
Abstract Number: 2434 • ACR Convergence 2023
Acetylated Bacterial Proteins as Potent Antigens Inducing an Anti-modified Protein Antibody Response
Mikhail Volkov, Arieke Kampstra, Karin van Schie, Joanneke Kwekkeboom, Arnoud de Ru, Peter van Veelen, Thomas Huizinga, René Toes and Diane van der Woude, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Gut-residing bacteria, such as E.coli, can acetylate their proteome under conditions of amine starvation. It is postulated that the (gut) microbiome is involved in…
Abstract Number: 0392 • ACR Convergence 2023
Novel Diagnostic Markers for Rheumatoid Arthritis Including Anti-CarP (Carbamylated Protein), Anti-Sa (Citrullinated Vimentin) and Anti-CEP1 (Citrullinated Enolase Peptide1) Are Frequently Positive in Diagnostic Profiles
Jane Yang¹, Rubio Punzalan¹, Lehrhoff Andrew¹, Michael Nappi¹, Vincent ricchiuti², Michael Zikry¹ and Kelly Chun¹, ¹Labcorp, Calabasas, CA, ²Labcorp, Dublin, OH
Background/Purpose: Despite the diagnostic contribution of Anti-CCP3.1 (cyclic citrillunated peptide) antibody and RF (rheumatoid factor) as classified by the 2010 ACR/EULAR RA criteria, approximately one-third…
Abstract Number: 2450 • ACR Convergence 2023
Gene by Respiratory Disease Interactions Associated with Developing Rheumatoid Arthritis
Vanessa Kronzer¹, Keigo Hayashi², Cynthia Crowson¹, John Davis¹, Gregory McDermott², Jing Cui³, Elena Losina³, Pierre-Antoine Juge⁴, James Cerhan¹ and Jeffrey Sparks⁵, ¹Mayo Clinic, Rochester, MN, ²Brigham and Women's Hospital, Boston, MA, ³Brigham and Women's Hospital, Boston, MA, ⁴Division of Rheumatology, Inflammation, and Immunity Brigham & Women's Hospital, Boston, MA, ⁵Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
Background/Purpose: Cigarette smoking, textile dust, and occupational inhalants all strongly interact with the Human Leukocyte Antigen (HLA) shared epitope for risk of seropositive RA. Recently,…

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, 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 of editorial news coverage) is under media embargo until 10:00 AM ET on November 14, 2024. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].