ACR Meeting Abstracts

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Abstracts tagged "B cell tolerance"

  • Abstract Number: 3 • 2018 ACR/ARHP Annual Meeting

    Interferon-Alpha Disrupts DNA-Specific B Cell Tolerance in 3H9 Mice

    Dario Ferri1, Yuriy Baglaenko2, Ariana Karanxha1, Kieran Manion1, Carolina Grajales1 and Joan E. Wither1, 1Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada, 2Department of Biomedical Informatics, Brigham Women's Hospital, Harvard Medical School, Boston, MA

    Background/Purpose: A central mediator of Systemic Lupus Erythematosus (SLE) pathogenesis is interferon-alpha (IFNα), which is elevated in the serum of SLE patients. IFNα has been…
  • Abstract Number: 15 • 2018 ACR/ARHP Annual Meeting

    Abnormal ZAP-70 Expression in B Cells: New Potential Role in Tolerance Breakdown

    Mickaël Martin1, Anne-marie KNAPP1, Dana GHERGUS1, Fabien DELMOTTE2, Laurent Vallat3, Cédric SCHLEISS3, Raoul HERBRECHT4, Anne-sophie KORGANOW1, Frédéric GROS1, Sophie JUNG1, Pauline SOULAS-SPRAUEL1, Eric Meffre2 and Thierry Martin5, 1CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), STRASBOURG, France, 2Department of Immunobiology, Yale University School of Medicine, NEW HAVEN, CT, 3Laboratoire d'hematologie, Hopital Hautepierre, STRASBOURG, France, 4Service d'Hématologie et Oncologie, Hôpitaux universitaires de Strasbourg, STRASBOURG, France, 5CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), STRSBOURG, France

    Background/Purpose: Abnormal expression of the tyrosine kinase ZAP-70 by tumoral B cells in chronic lymphocytic leukemia (CLL) is associated with B cell receptor (BCR) hypersignalling…
  • Abstract Number: 58 • 2018 ACR/ARHP Annual Meeting

    Inhibition of Lipid Phosphatase SHIP1 Expands Myeloid-Derived Suppressor Cells and Attenuates Rheumatoid Arthritis in Mice

    Eui Young So1, Changqi Sun2, Patrycja M Dubielecka1, Anthony M. Reginato3 and Olin D. Liang1, 1Division of Hematology/Oncology, Rhode Island Hospital, Providence, RI, 2Division of Rheumatology, Rhode Island Hosital/The Warren Alpert School of Medicine of Brown University, Providence, RI, 3Division of Rheumatology, Rhode Island Hospital, Providence, RI

    Background/Purpose: The SH2-containing inositol-5’-phosphatase-1 (SHIP1) controls PI3K initiated signaling by limiting membrane recruitment and activation of AKT. SHIP1 knockout in mice leads to an increase…
  • Abstract Number: 836 • 2017 ACR/ARHP Annual Meeting

    B Cell Receptor Sequencing of Anti-Citrullinated Protein Antibody Expressing B Cells Indicates a Selective Advantage for the Introduction of N-Glycosylation Sites during Somatic Hypermutation

    Rochelle D. Vergroesen1, Linda Slot1, Lise Hafkenscheid1, Marvyn T. Koning2, Ellen I.H. van der Voort3, Christine A. Grooff1, George Zervakis2, Tom W.J. Huizinga1, Theo Rispens4, Hendrik Veelken2, Rene E.M. Toes1 and Hans U. Scherer3, 1Rheumatology, Leiden University Medical Center, Leiden, Netherlands, 2Hematology, Leiden University Medical Center, Leiden, Netherlands, 3Department of Rheumatology, Leiden University Medical Center, Leiden, Netherlands, 4Immunopathology, Sanquin Research, Amsterdam, Netherlands

    Background/Purpose: The vast majority (>90%) of anti-citrullinated protein antibodies (ACPA) of the IgG isotype in serum and synovial fluid of patients with rheumatoid arthritis carry…
  • Abstract Number: 2348 • 2017 ACR/ARHP Annual Meeting

    A New Cause of Mendelian Lupus Due to IKZF1 Mutation Underlines the B Cell Landscape Heterogeneity in Monogenic Lupus

    Alexandre Belot1,2, Cecile Frachette3, Omarjee Sulliman Ommar2, Anne-Laure Mathieu2, Thibault Andrieu2, Paul Mondier2, Gillian Rice4, Heloise Reumaux5, David Launay6,7, Marc Lambert8,9, Guillaume Lefevre10, Nicole Fabien11, Christophe Malcus12, Isabelle Rouvet13, Emilie Chopin13, Anne-Sophie Michallet14, Thierry Defrance14, Thierry Walzer14 and Yanick J Crow15, 1Pediatric Rheumatology Unit, HFME, Hospices Civils de Lyon, Bron, France, 2U1111, INSERM, Lyon, France, 3Hospices Civils de Lyon, Bron, France, 4Manchester Academic Health Science Centre, Institute of Human Development, University of Manchester, Manchester, United Kingdom, 5Pediatric Rheumatology, CHRU Lille, Lille, France, 6LIRIC, INSERM UMR 995, Lille, France, 7Service de Médecine Interne, Centre National de Référence des Maladies Systémiques Rares, Hôpital Claude Huriez, CHRU Lille, Lille, France, 8Univ. Lille, U995, Lille Inflammation Research International Center (LIRIC), F-59000 Lille, France, Lille, France, 9Medecine Interne Lilloise, Service de médecine interne, Hôpital Claude Huriez, Université Lille II, Lille, France, Lille, France, 10Internal Medicine, Lille University Hospital, Lille, France, 11Immunology Department, UF d'Autoimmunité, Immunology Department, CHU de Lyon HCL- GH Sud, Lyon, France, 12Cellular Immunology Department - Laboratoire d'immunologie cellulaire, Groupement Hospitalier Edouard Herriot, Lyon, France, 13Cellular Biotechnology Department, Centre de biologie et pathologie Est, Hospices civils de Lyon, Lyon, France, 14International Center for Infectiology Research - CIRI, Lyon, France, 15Institut Imagine, Paris, France

    Background/Purpose: Next generation sequencing (NGS) represents a revolution in the field of molecular medicine, and offers a new approach to deciphering the pathogenesis of complex…
  • Abstract Number: 2567 • 2017 ACR/ARHP Annual Meeting

    Type I IFN Blockade Restores Normal Transitional B Cell Development Post-Anti-CD20 Depletion

    Jennie Hamilton1, Qi Wu2, PingAr Yang3, Bao Luo4, Shanrun Liu5, Huixian Hong6, Jun Li7, Hui-Chen Hsu2 and John D. Mountz8, 1Medicine/Division of Clinical Immunology and Rhematology, University of Alabama at Birmingham, Birmingham, AL, 2Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 3Department of Medicine, Clinical Immunology & Rheumatology, University of Alabama at Birmingham, Birmingham, AL, 4Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 5Biochemistry & Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, 6University of Alabama at Birmingham, Division of Clinical Immunology and Rheumatology, Department of Medicine, Birmingham, AL, 7Medicine, University of Alabama at Birmingham, Birmingham, AL, 8University of Alabama at Birmingham, Department of Medicine, Birmingham, AL

    Background/Purpose: Application of B cell depletion therapy (BCDT) for treatment of SLE has shown promise in some patients, but some patients exhibit disease relapses. Anti-type…
  • Abstract Number: 23 • 2017 ACR/ARHP Annual Meeting

    Auto-Reactive B Cells Escape Peripheral Tolerance Checkpoints in Patients with PR3-ANCA Associated Vasculitis

    Divi Cornec1, Alvise Berti2, Amber Hummel1, Tobias Peikert1, Jacques-Olivier Pers3 and Ulrich Specks4, 1Mayo Clinic, Rochester, MN, 2Department of Immunology, Rheumatology, Allergy and Rare Diseases, San Raffaele Scientific Institute, Milan, Italy, 3Immunology, Brest University Medical School Hospital, Brest, France, 4Mayo Clinic College of Medicine, Rochester, MN

    Background/Purpose: While extensive studies have been performed to characterize ANCA, little is known about the auto-reactive B cells that produce these autoantibodies. Indirect evidence previously…
  • Abstract Number: 831 • 2017 ACR/ARHP Annual Meeting

    Interferon-Alpha Disrupts Tolerance in a Mouse Model of B Cell Anergy

    Dario Ferri1, Yuriy Baglaenko2, Kieran Manion2, Nan-Hua Chang2 and Joan E. Wither3, 1Immunology, University of Toronto, Toronto, ON, Canada, 2Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada, 3Rheumatology, University of Toronto, Toronto Western Hospital, Toronto, ON, Canada

    Background/Purpose: Systemic Lupus Erythematosus (SLE) is characterized by the production of anti-nuclear antibodies that deposit within tissues leading to organ damage. A central mediator of…
  • Abstract Number: 832 • 2017 ACR/ARHP Annual Meeting

    Single Cell Analysis Reveals Heterogeneity of Type I IFN Gene Expression in Developing Autoreactive B Cells

    Jennie Hamilton1, PingAr Yang2, Qi Wu3, Bao Luo4, Shanrun Liu5, Jun Li6, Mark Walter7, Eleanor Fish8, Hui-Chen Hsu3 and John D. Mountz9, 1Medicine/Division of Clinical Immunology and Rhematology, University of Alabama at Birmingham, Birmingham, AL, 2Department of Medicine, Clinical Immunology & Rheumatology, University of Alabama at Birmingham, Birmingham, AL, 3Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 4Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 5Biochemistry & Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, 6Medicine, University of Alabama at Birmingham, Birmingham, AL, 7Microbiology, University of Alabama at Birmingham, Birmingham, AL, 8University Health Network & Department of Immunology, University of Toronto, Toronto General Research Institute, Toronto, ON, Canada, 9University of Alabama at Birmingham, Department of Medicine, Birmingham, AL

    Background/Purpose: B cell development involves passage through a formative transitional B cell stage in the spleen. In SLE, self-nucleic acid reactive B cells fail to…
  • Abstract Number: 833 • 2017 ACR/ARHP Annual Meeting

    Chronic Cutaneous Lupus Erythematosus Patients Have a Breakdown in Autoreactive VH4.34 Antibody Tolerance While Maintaining Tolerance to dsDNA and Chromatin

    Scott Jenks1, Regina Bugrovsky1, Xiaoqian Wang1,2, Aisha Hill3, Chungwen Wei4, S. Sam Lim5, Ignacio Sanz6 and Cristina Drenkard5, 1Emory University School of Medicine and Lowance Center for Human Immunology, Atlanta, GA, 2Division of Rheumatology and Lowance Center for Human Immunology, Emory University School of Medicine, Atlanta, GA, 3Medicine, Emory University School of Medicine, atlanta, GA, 4Medicine, Emory University School of Medicine, Atlanta, GA, 5Division of Rheumatology, Emory University School of Medicine, Atlanta, GA, 6Rheumatology and Lowance Center for Human Immunology, Emory University School of Medicine and Lowance Center for Human Immunology, Atlanta, GA

    Background/Purpose: While the contribution of humoral immunity to SLE is well established, the role it plays in chronic cutaneous lupus erythematosus (CCLE) is less clear.…
  • Abstract Number: 918 • 2016 ACR/ARHP Annual Meeting

    Anergic B Cells May Preserve Peripheral Tolerance in Lupus-Prone Congenic Mice

    Kieran Manion1,2, Yuriy Baglaenko1,2, Nan-Hua Chang2, Nafiseh Talaei3 and Joan Wither4, 1Immunology, University of Toronto, Toronto, ON, Canada, 2Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada, 3Genetics and Development, Krembil Research Institute, Toronto, ON, Canada, 4Krembil Research Institute, University Health Network, Toronto, ON, Canada

    Background/Purpose:  Anergic autoreactive B cells are thought to play a critical role in systemic lupus erythematosus (SLE), a chronic autoimmune disease where breach of tolerance…
  • Abstract Number: 1084 • 2016 ACR/ARHP Annual Meeting

    Antibodies to Native Vimentin in Lupus: Characterization, Isotypes, Origins, and Associations with Other Autoimmune Pathways

    Andrew Kinloch1, Yuta Asano1, Rene Bermea2, Kichul Ko2, Carole Henry1, Nirit Mor-Vaknin3, David Markovitz4, Patrick Wilson1 and Marcus R. Clark5, 1Gwen Knapp Center for Lupus and Immunology Research, University of Chicago, Chicago, IL, 2Medicine, University of Chicago, Chicago, IL, 3Infectious Diseases, University of Michigan, Ann Arbor, MI, 4Internal Medicine, University of Michigan, Ann Arbor, MI, 5Rheumatology and Knapp Center for Lupus Research, University of Chicago, Chicago, IL

    Background/Purpose: Severe lupus tubulointerstitial nephritis (TIN) is prognostic of renal failure and characterized by tertiary lymphoid organogenesis. We have previously demonstrated that the dominant target…
  • Abstract Number: 1086 • 2016 ACR/ARHP Annual Meeting

    Analysis of the Naive B Cell Repertoire in Belimumab Treated SLE Patients

    Weiqing Huang1, Cynthia Aranow2, Cosmin Dascalu1, Richard Furie3 and Anne Davidson4, 1Autoimmunity and Musculoskeletal Diseases, Feinstein Institute for Medical Research, Manhasset, NY, 2The Feinstein Institute for Medical Research, Manhasset, NY, 3Division of Rheumatology, North Shore LIJ Health System, Great Neck, NY, 4Autoimmunity and Musculoskeletal Diseases, Feinstein Inst for Med Rsch, Manhasset, NY

    Background/Purpose:  BAFF is a TNF-like cytokine that supports the survival and differentiation of B cells. The anti-BAFF antibody belimumab is the only new drug that…
  • Abstract Number: 1089 • 2016 ACR/ARHP Annual Meeting

    Decreased B Cell Activation-Induced Apoptosis in Cells Overexpressing Interferon Regulatory Factor 5 (IRF5), a Gene Associated with Risk for Systemic Lupus Erythematosus and Other Autoimmune Diseases

    Brian Poole1, Caleb Cornaby2, Kalare Eberting2, Wesley Cheney2, Grant Walker2, Craig Smith2, Tosh Dowling2 and Emily Mello2, 1Brigham Young University, Provo, UT, 2Microbiology and Molecular Biology, Brigham Young University, Provo, UT

    Background/Purpose: The transcription factor Interferon Regulatory Factor 5 (IRF5) plays a crucial role in the functioning of several cell types such as macrophages, dendritic, and…
  • Abstract Number: 2114 • 2016 ACR/ARHP Annual Meeting

    Exposure to Carbamylated Self- and Non-Self-Proteins Can Lead to a Break-of -Tolerance and the Induction of Autoimmunity

    Jacqueline Dekkers1, Marije K. Verheul2, Jeroen Stoop3, Bisheng Liu4, Peter A. van Veelen5, Martin Hegen6, Stephen Rapecki7, Tom WJ Huizinga2, Leendert A. Trouw4 and René Toes4, 1Rheumatology, Department of Rheumatology, Leiden University Medical Center (LUMC), Leiden, Netherlands, 2Department of Rheumatology, Leiden University Medical Center, Leiden, Netherlands, 3Leiden University Medical Center (LUMC), Leiden, Netherlands, 4Rheumatology, Leiden University Medical Center, Leiden, Netherlands, 5Immunohematology and Bloodbank, Leiden University Medical Center, Leiden, Netherlands, 6Inflammation, Wyeth Pharmaceuticals, Cambridge, MA, 7UCB Pharma, Slough, United Kingdom

    Background/Purpose: Autoantibodies are an important hallmark of Rheumatoid Arthritis (RA). Approximately 50% of RA patients harbor anti-carbamylated protein (CarP) antibodies. These autoantibodies target proteins that…
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