Abstracts tagged "autoantigens"

Abstract Number: 0785 • ACR Convergence 2020
Identification of Recruited CCR2+ Inflammatory Monocytes in a Mouse Model of RA-associated Lung Disease with Potential Role for resolvin-D1 in Reducing Monocyte Inflammatory Responses
Austin Barry¹, Geoffrey Thiele¹, Ted Mikuls¹, Michael Duryee¹, Amy Nelson¹, Rohit Gaurav¹, Bryant England¹ and Jill Poole¹, ¹University of Nebraska Medical Center, Omaha, NE
Background/Purpose: Patients with rheumatoid arthritis (RA) are at an increased risk for comorbid chronic lung disease, with premature mortality. Therapies for RA-associated lung disease are…
Abstract Number: 1078 • ACR Convergence 2020
Highly Reactive anti-Jo1 Autoantibodies to Distinct HisRS Variants and Domains Associate with Lung and Joint Involvement in Patients with Myositis
Antonella Notarnicola¹, Charlotta Preger², Susanna L. Lundström², Nuria Renard², Edvard Wigren², Eveline Van Gompel², Angeles S. Galindo-Feria², Helena Persson³, Maryam Fathi⁴, Johan Grunewald², Per-Johan Jakobsson², Susanne Gräslund², Ingrid Lundberg⁵ and Cátia Fernandes-Cerqueira², ¹Karolinska Institutet, Stockholm, Stockholms Lan, Sweden, ²Karolinska Institutet, stockholm, Sweden, ³Science for Life Laboratories, KTH, Stockholm, Sweden, ⁴Karolinska University Hospital, stockholm, Sweden, ⁵Division of Rheumatology, Department of Medicine, Karolinska Institutet,, Stockholm, Sweden
Background/Purpose: To address the reactivity and affinity against histidyl-transfer RNA synthetase (HisRS) autoantigen of anti-Jo1 autoantibodies from serum and bronchoalveolar lavage fluid (BALF) and associations…
Abstract Number: 1440 • ACR Convergence 2020
The Myeloperoxidase (MPO) Anti-Neutrophilic Cytoplasmic Antibody (ANCA) Binding Epitope, MPO447-459 Induces CD4 T-cell Proliferation in Patients with MPO-ANCA-associated Vasculitis
Matthew Terrill¹, Hendrik Nel², Yassmin Musthaffa³, Wong Richard⁴, Ross Francis⁵, David Johnson⁵, Greg Keir⁶, David Gillis⁷ and Ranjeny Thomas⁸, ¹University of Queensland Diamantina Institute and Princess Alexandra Hospital, Rheumatology Department, Brisbane- Australia, Moffat beach, Queensland, Australia, ²University of Queensland Diamantina Institute, Brisbane, Queensland, Australia, ³University of Queensland Diamantina Institute, Brisbane, Australia, ⁴Immunology Department, Princess Alexandra Hospital, Brisbane- Australia, Brisbane, Australia, ⁵Renal Department, Princess Alexandra Hospital, Brisbane- Australia., Brisbane, Queensland, Australia, ⁶Respiratory Department, Princess Alexandra Hospital, Brisbane- Australia., Brisbane, Queensland, Australia, ⁷Immunopathology Department, Royal Women’s and Children’s Hospital, Brisbane- Australia., Brisbane, Queensland, Australia, ⁸University of Queensland Diamantina Institute and Rheumatology Department, Princess Alexandra Hospital, Brisbane – Australia., Brisbane, Australia
Background/Purpose: In Myeloperoxidase (MPO) Anti Neutrophilic Cytoplasmic Antibody (ANCA)-Associated Vasculitis (MPO-AAV), murine and human studies suggest that the MPO435-465 region, which includes ANCA-binding MPO447-459, the…
Abstract Number: 2044 • ACR Convergence 2020
Complex, Dynamic Attributes of Antigen-specific T Cells in Rheumatoid Arthritis
Eddie James¹, Virginia Muir², Cliff Rims¹, Hannes Uchtenhagen³, Anne Hocking³, Sylvia Posso³, Heather Bukiri⁴, Jeffrey Carlin⁴, Bernard Ng⁵, Peter Linsley³ and Jane Buckner¹, ¹Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA, ²Center for Systems Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA, ³Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁴Virginia Mason Medical Center, Seattle, WA, ⁵VA Puget Sound Health Care System, Seattle, WA
Background/Purpose: CD4+ T cells are implicated in the pathogenesis of rheumatoid arthritis (RA) due to strong genetic association with HLA class II alleles, the presence…
Abstract Number: 0296 • ACR Convergence 2020
Investigating the Differences in ANA Specificities Between Asymptomatic and Symptomatic ANA+ Individuals
Carolina Munoz-grajales¹, Stephenie Prokopec², Dennisse Bonilla³, Earl D. Silverman⁴, Sindhu Johnson³, Arthur Bookman⁵, Zahi Touma⁶, Zareen Ahmad⁷, Linda Hiraki⁸, Paul Boutros⁹, Andrzej Chruscinski¹⁰ and Joan Wither³, ¹University of Toronto, Toronto, Canada, ²Ontario Institute for Cancer Research, Toronto, Canada, ³University of Toronto Lupus Clinic, Centre for Prognosis Studies in Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada, ⁴Division of Rheumatology, The Hospital for Sick Children, Translational Medicine, Research Institute, The Hospital for Sick Children, and Department of Paediatrics, University of Toronto., Toronto, ON, Canada, ⁵Division of Rheumatology, University Health Network; 8Department of Medicine, University of Toronto; Division of Rheumatology, Toronto, Canada, ⁶University of Toronto Lupus Clinic, Centre for Prognosis Studies in Rheumatic Diseases, Toronto Western Hospital, University Health Network; Krembil Research Institute, Toronto, ON, Canada, ⁷Department of Medicine, University of Toronto; Division of Rheumatology, Mount Sinai Hospital, Toronto, Canada, ⁸Division of Rheumatology, The Hospital for Sick Children; Department of Medicine, University of Toronto, Toronto, Canada, ⁹Department of Immunology, University of Toronto; Department of Medical Biophysics, University of Toronto; Department of Pharmacology and Toxicology, University of Toronto; Department of Human Genetics, University of California; Department of Urology, University of California; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California; Institute for Precision Health, University of California; Jonsson Comprehensive Cancer Centre, University of California, Toronto, Canada, ¹⁰Multi-Organ Transplant Program, University Health Network, Toronto, Canada
Background/Purpose: Within the Anti-Nuclear Antibody (ANA) associated Systemic Autoimmune Rheumatic Diseases (SARD), such as Systemic Lupus Erythematous (SLE), Sjögren’s Syndrome (SS), and Systemic Sclerosis (SSc),…
Abstract Number: 972 • 2019 ACR/ARP Annual Meeting
Disease Severity Is Linked to an Increase in Autoantibody Diversity in IgG4-related Disease
Hang Liu¹, Cory Perugino ², Musie Ghebremichael ¹, Zachary Wallace ², Sydney Montesi ³, John Stone ⁴ and Shiv Pillai ⁵, ¹Ragon Institute of MGH, MTI and Harvard, Cambridge, ²Massachusetts General Hospital, Boston, ³Massachusetts General Hospital, Boston, MA, ⁴Massachusetts General Hospital Rheumatology Unit, Harvard Medical School, Boston, MA, ⁵Ragon Institude of MGH, MIT and Harvard, Charlestown, MA
Background/Purpose: The oligoclonal expansion in IgG4-related disease (IgG4-RD) of both plasmablasts and tissue-infiltrating CD4+ cytotoxic T lymphocytes, the identification of specific auto-antigens as B cell…
Abstract Number: 2429 • 2019 ACR/ARP Annual Meeting
Zipcode-Binding Protein 1 (ZBP1) Facilitates Ro60 Surface Translocation, Cellular Growth and Autoimmune Sequelae
Francis DiDonato¹, Jill Buyon ¹ and Robert Clancy ¹, ¹NYU School of Medicine, New York
Background/Purpose: Despite the strong association of maternal anti-Ro60 autoantibodies in the development of SS, Neonatal Lupus (NL) and scLE, understanding causality is challenging given that…
Abstract Number: 4 • 2018 ACR/ARHP Annual Meeting
Anti-Jo1 Positive Myositis Patients Display a Characteristic IgG Fc-Glycan Profile Which Is Further Enhanced in Anti-Jo1 Autoantibodies
Catia Fernandes-Cerqueira^1,2, Nuria Renard^1,2, Antonella Notarnicola^1,2, Edvard Wigren^1,2,3, Susanne Graslund^1,2,3, Roman Zubarev⁴, Ingrid E. Lundberg^1,2 and Susanna L. Lundström⁴, ¹Department of Medicine, Division of Rheumatology, Karolinska Institutet, Stockholm, Sweden, ²Center for Molecular Medicine, Stockholm, Sweden, ³Structural Genomics Consortium, Stockholm, Sweden, ⁴Department of Medical Biochemistry and Biophysics, Division of Physiological Chemistry I, Stockholm, Sweden
Background/Purpose: IgG Fc-glycans affect IgG function and are altered in autoimmune diseases and autoantibodies. Anti-histidyl tRNA synthetase autoantibodies (anti-Jo1) are frequent in myositis associated with…
Abstract Number: 16 • 2018 ACR/ARHP Annual Meeting
Comprehensive Antibody Profiling Using High Density Peptide Arrays Reveals Novel Citrullinated Protein Targets in Rheumatoid Arthritis Serum Samples
Ken Lo¹, Hanying Li², Eric Sullivan² and Jigar Patel², ¹Technology Innovation, Roche Sequencing Solutions - Madison, Madison, WI, ²Roche Sequencing Solutions - Madison, Madison, WI
Background/Purpose: Autoantibodies against citrullinated proteins are found in 64-89% of rheumatoid arthritis (RA) patients, with a specificity of 88-99%. While citrullinated vimentin, fibrin and histone…
Abstract Number: 2010 • 2018 ACR/ARHP Annual Meeting
Anti-Endothelial Cell Antibodies in Pediatric Rheumatic Diseases
Rie Karasawa¹, Toshiko Sato¹, Megumi Tanaka¹, Mayumi Tamaki¹, Kazuo Yudoh¹ and James Jarvis², ¹Institute of Medical Science, St. Marianna University School of Medicine, Kawasaki, Japan, ²Pediatrics, University at Buffalo Jacobs School of Medicine & Biomedical Sciences, Buffalo, NY
Background/Purpose: Anti-endothelial cell antibodies (AECA) are antibodies detected in multiple autoimmune and inflammatory diseases. Increased levels of such antibodies may be involved in disease activity…
Abstract Number: 2056 • 2018 ACR/ARHP Annual Meeting
Citrullination Is Not a Determinant in the Lack of Tolerance to Peptidylarginine Deiminase 2 and 4 in Rheumatoid Arthritis
Pooja Naik¹, Ryan Davis², Jon T. Giles³, Felipe Andrade⁴ and Erika Darrah⁵, ¹Department of Medicine, Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ²Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ³Columbia University, New York, NY, ⁴Medicine/Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ⁵Department of Medicine/Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD
Background/Purpose: Peptidylarginine deiminase (PAD) 2 and 4 are targets of the humoral response in RA. However, the mechanisms by which these enzymes become immunogenic in…
Abstract Number: 2291 • 2018 ACR/ARHP Annual Meeting
Longitudinal Course of the Disease in Anti-Mi2 Patients: More Intense Muscle Weakness, Good Response to Treatment and Progressive Reduction of Autoantibody Titers
Iago Pinal-Fernandez^1,2, Katherine Pak³, Maria Casal-Dominguez^4,5, Wilson Huang⁴, Jemima Albayda⁶, Eleni Tiniakou⁷, Julie J. Paik¹, Christopher A. Mecoli⁸, Sonye K. Danoff⁹, Lisa Christopher-Stine⁹ and Andrew Mammen^3,10, ¹Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ²Muscle Diseases Unit, National Institute of Arthritis and Musculoskeletal and Skin Diseases. National Institutes of Health, Bethesda, MD, ³National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ⁴NIAMS, NIH, Bethesda, MD, ⁵Johns Hopkins Medical School, Baltimore, MD, ⁶Johns Hopkins University School of Medicine, Baltimore, MD, ⁷Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ⁸Internal Medicine/Rheumatology, Johns Hopkins University, Baltimore, MD, ⁹Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, ¹⁰Center Tower Ste 5300, Johns Hopkins University School of Medicine, Baltimore, MD
Background/Purpose: Autoantibodies targeting the Mi-2 (Mi-2a and Mi-2b) nuclear antigen in patients with dermatomyositis (DM) were first described in 1985. However, little is known about…
Abstract Number: 26 • 2017 ACR/ARHP Annual Meeting
Single B Cell Analysis Revealed the Relationship Among the Cytokine Profile, Antibody Affinity, and Pathogenic Roles of Autoantigen-Reactive B Cells in Systemic Sclerosis
Takemichi Fukasawa¹, Ayumi Yoshizaki², Satoshi Ebata¹, Kouki Nakamura¹, Ryosuke Saigusa¹, Takashi Yamashita¹, Yoshihide Asano³, Yutaka Kazoe⁴, Kazuma Mawatari⁴, Takehiko Kitamori⁴ and Shinichi Sato⁵, ¹Dermatology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan, ²Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan, ³Applied Chemistry, University of Tokyo, Graduate School of Medicine, Tokyo, Japan, ⁴Applied Chemistry, University of Tokyo, Graduate School of Engineering, Tokyo, Japan, ⁵Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
Background/Purpose: Recent studies have indicated that B cells play critical roles in systemic autoimmunity and disease expression through various functions such as induction of the…
Abstract Number: 39 • 2017 ACR/ARHP Annual Meeting
Protein Array Technology Identifies Rituximab-Treated Non-Responder Rheumatoid Arthritis Patients to Generate New Autoantibody Repertoires during Treatment
Zoltán Konthur¹, Melvin Michael Wiemkes², Thomas Häupl², Gerd R. Burmester² and Karl Skriner², ¹Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany, ²Department of Rheumatology and Clinical Immunology, Charité - University Medicine Berlin, Free University and Humboldt University Berlin, Berlin, Germany
Background/Purpose: Rituximab (RTX) has shown clinical efficacy but up to 40 % of RTX treated rheumatoid arthritis (RA) patients are poor responders (Ann-Rheum-Dis. 2005 Feb;64(2):246-52)…
Abstract Number: 44 • 2017 ACR/ARHP Annual Meeting
Characterization of Novel Stromal-Derived Autoantigens Recognized By RA Synovial Monoclonal Antibodies
Elisa Corsiero¹, Lucas Jagemann¹, Costantino Pitzalis² and Michele Bombardieri³, ¹Centre for Experimental Medicine & Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom, ²Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom, ³Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
Background/Purpose: We previously showed that up to 40% of RA synovial recombinant monoclonal antibodies (RA-rmAbs) generated from germinal center-like structure (GC-LS+) RA synovium recognize citrullinated…

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