Abstracts tagged "autoantigens"

Abstract Number: 0720 • ACR Convergence 2021
The Clinical Significance of anti-PC4 and SFRS1 Interacting Protein 1 Antibody in Polymyositis and Dermatomyositis Patients
Yuji Hosono¹, Azusa Kojima¹, Akira Ishii¹, Yuto Izumi¹, Kazuki Hirano¹, Noriko Sasaki², Chiho Yamada¹ and Shinji Sato³, ¹Tokai University School of Medicine, Isehara, Japan, ²tokai university, sagamihara-city, Japan, ³Tokai University, Isehara, Japan
Background/Purpose: Many kinds of myositis specific autoantibodies are detected in sera from polymyositis (PM) and dermatomyositis (DM). Screening for autoantibodies is essential in the diagnostic…
Abstract Number: 1489 • ACR Convergence 2021
Identification of Mitochondrial Antigens Targeted by Autoantibodies in Systemic Lupus Erythematosus (SLE)
Yann BECKER¹, Jean-Philippe Gagné², Anne-Sophie Julien³, Tania Lévesque¹, Nadine Gougeard⁴, Vicente Rubio⁴, François-Michel Boisvert⁵, Dominique Jean⁶, Guy Poirier², Paul R Fortin⁷ and Éric Boilard¹, ¹Centre de Recherche ARThrite, Université Laval, Québec City, QC, Canada, ²Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval, Québec City, QC, Canada, ³Département de mathématiques et statistique, Université Laval, Québec, QC, Canada, ⁴Structural Enzymopathology Unit, Instituto de Biomedicina de Valencia, Consejo Superior de Investigaciones Científicas, Valencia, Spain, ⁵Department of Anatomy and Cell Biology, Université de Sherbrooke, Sherbrooke, QC, Canada, ⁶Department of Anatomy and Cell Biology, Université de Sherbrooke, Sherbrooke, Canada, ⁷CHU de Quebec - Universite Laval, Québec City, QC, Canada
Background/Purpose: Mitochondria are organelles that possess several bacterial features such as a double-stranded genome with hypomethylated CpG islets, formylated proteins, and a double membrane composed…
Abstract Number: 1511 • ACR Convergence 2021
Investigation of Antigen Specific CD4+ T Cells in Patients with Idiopathic Inflammatory Myopathies
Begum Horuluoglu¹, Angeles Shunashy Galindo-Feria², Karine Chemin³, Genadiy Kozhukh⁴, Anatoly Dubnovitsky⁴, Vivianne Malmström⁵ and Ingrid E Lundberg⁶, ¹Karolinska Institutet, Stockholm, Sweden, ²Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ³Division of Rheumatology, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden, ⁴Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden, ⁵Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden, ⁶Karolinska Institutet, Karolinska University Hospital, Division of Rheumatology, Department of Medicine Solna, Stockholm, Sweden, Stockholm, Sweden
Background/Purpose: Idiopathic inflammatory myopathies (IIM) also known as myositis, are rare chronic autoimmune disorders represented by lesions in muscle, skin and lung. One of the…
Abstract Number: 0426 • ACR Convergence 2020
T-Cell Receptor (TCR) Sequencing Reveals Decreased Diversity and Clonotypic Expansion of T-cells in Relapsing Polychondritis (RP)
Emily Rominger¹, Sufia Bakshi², Emily Rose³, Marcela Ferrada³, Peter C. Grayson⁴, Robert Colbert⁵ and Keith Sikora⁶, ¹Systemic Autoimmunity Branch, Vasculitis Translational Research Program, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, ²National Institutes of Health, Bethesda, MD, ³Systemic Autoimmunity Branch, Vasculitis Translational Research Program, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ⁴Systemic Autoimmunity Branch, National Institutes of Health, NIAMS, Bethesda, MD, ⁵Pediatric Clinical Trials Unit and Office of Clinical Director, NIAMS, NIH, Bethesda, MD, ⁶National Institutes of Health Clinical Center, Bethesda, MD
Background/Purpose: Relapsing polychondritis (RP) is a rare, systemic inflammatory disease characterized by recurrent inflammation of cartilaginous structures, including the nose/ears, joints, and trachea. The etiology of…
Abstract Number: 0761 • ACR Convergence 2020
Anti-Peptidylarginine Deaminase Antibodies in the Individuals with Arthralgia at Risk of Progression to Rheumatoid Arthritis
Nora Petrovská¹, Klára Prajzlerová¹, Ivana Půtová², Monika Gregová¹, Petra Hánová², Heřman Mann³, Karel Pavelka¹, Jiří Vencovský¹, Ladislav Šenolt¹ and Mária Filková¹, ¹Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ²Institute of Rheumatology, Prague, Czech Republic, ³Institute of Rheumatology, Prague, Czech Republic. Department of Rheumatology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic, Prague, Czech Republic
Background/Purpose: In order to identify the individuals at risk of imminent progression to rheumatoid arthritis (RA), EULAR has established a definition of clinically suspect arthralgia…
Abstract Number: 0770 • ACR Convergence 2020
Effect of Citrullination on the Processing and Presentation of Rheumatoid Arthritis Autoantigens
Ashley Curran¹, Jonathan Crawford¹ and Erika Darrah¹, ¹Division of Rheumatology, Johns Hopkins University, Baltimore, MD
Background/Purpose: Citrullinated proteins are hallmark targets of the autoimmune response in rheumatoid arthritis (RA), but the mechanism by which immune tolerance is broken to these self-proteins…
Abstract Number: 0773 • ACR Convergence 2020
The Anti-carbamylated Fibrinogen Response in Rheumatoid Arthritis Targets a Specific Epitope on the γ-chain and Is Associated with a More Active Disease
Pauline Brevet¹, Manuel Freret¹, Pascal Rottenberg², Clément Guillou³, Thierry Lequerre⁴, Pascal Cosette⁵, Olivier Boyer² and Olivier Vittecoq⁶, ¹Inserm U1234 and Rouen University , IRIB, Rouen, France ; Rouen University Hospital, Rheumatology Department, Rouen, France, Rouen, Haute-Normandie, France, ²Inserm U1234 and Rouen University , IRIB, Rouen, France ; Rouen University Hospital, Rheumatology Department, Rouen, France, Rouen, France, ³CNRS 6270, PISSARO, IRIB, Rouen, France ; Centre hospitalo-universitaire de Rouen, Immunology Laboratory, Rouen, France, Rouen, Haute-Normandie, France, ⁴Rheumatology, University Teaching Hospital, Rouen, France, ⁵CNRS 6270, PISSARO, IRIB, Rouen, France ; Centre hospitalo-universitaire de Rouen, Immunology Laboratory, Rouen, France, Rouen, France, ⁶University Hospital of Rouen, Rouen, France
Background/Purpose: Anti-carbamylated protein autoantibodies (anti-CarP Abs) of IgG and/or IgA isotype have potential diagnostic and prognostic value Carbamylated Fetal Calf Serum (FCS) is the substrate…
Abstract Number: 0775 • ACR Convergence 2020
T and B Cell Responses to Common Tenascin-C Peptides in RA
JING Song¹, Anja Schwenzer², Sara Turcinov³, Alicia Wong², Cliff Rims¹, Lorena Rodriguez Martinez², David Arribas-Layton⁴, Christina Gerstner⁵, Virginia Muir⁶, Jeffrey Carlin⁷, Kim Midwood², Vivianne Malmström⁸, Eddie James¹ and Jane Buckner¹, ¹Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA, ²Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom, ³Division of Rheumatology, Department of Medicine,Center for Molecular Medicine, Institutet, Stockholm, Sweden, ⁴Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, ⁵Division of Rheumatology, Department of Medicine,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden, ⁶Center for Systems Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁷Department of Rheumatology, Virginia Mason Medical Center, Seattle, WA, ⁸Karolinska Institutet, Stockholm, Stockholms Lan, Sweden
Background/Purpose: Although autoreactive CD4+ T cell and antibody responses against citrullinated antigens are known to contribute to loss of immune tolerance in rheumatoid arthritis (RA),…
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…

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