Abstracts Archive - Page 1005 of 2425 - ACR Meeting Abstracts

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: 5 • 2018 ACR/ARHP Annual Meeting
Short Chain Fatty Acid Acetate Induces Regulatory B Cells in Mice and Humans, Which Can Protect Against Arthritis
Claire I. Daien^1,2,3, Julie Mielle^1,4, Rachel Audo^1,2,5, Lake-Ee Quek¹, James Krycer¹, Gauthier Rathat⁶, Gabriela Pinget¹, Sumaiya Hoque⁷, Charles Mackay⁸, Jian Tan⁹ and Laurence Macia¹, ¹Charles Perkins Centre, The University of Sydney, Sydney, Australia, ²IGMM, CNRS UMR5535, Montpellier, Montpellier, France, ³Department of rheumatology, Lapeyronie Hospital and Montpellier University, Montpellier, France, ⁴IGMM CNRS UMR5535, Montpellier, France, ⁵Rheumatology, Lapeyronie Hospital and Montpellier University, Montpellier, France, ⁶Arnaud-de-Villeneuve Hospital, Montpellier, France, ⁷Charles Perkins Centre, The University of Sydney, Sydney, France, ⁸Monash University, Melbourne, Australia, ⁹Charles Perkins Centre, The University of Sydney, Montpellier, Australia
Background/Purpose: Autoimmunity and more broadly non-communicable diseases develop with the imbalance between anti- and pro-inflammatory immune cell subsets, leading to an uncontrolled and damaging inflammation.…
Abstract Number: 6 • 2018 ACR/ARHP Annual Meeting
Ro52/Trim21 Influences Follicular B Cell Homeostasis and Immunoglobulin Production
Margarita Ivanchenko¹, Susanna Brauner², Gudny Ella Thorlacius¹, Aurélie Ambrosi¹ and Marie Wahren-Herlenius¹, ¹Unit of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, Stockholm, Sweden, ²Neuroimmunology Unit, Department of Clinical Neurosciences, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden, Solna, Sweden
Background/Purpose: Systemic rheumatic diseases are characterized by abnormal B cell activation with autoantibody production and hypergammaglobulinemia. The autoantigen Ro52/SSA, also denoted TRIM21, is a major…
Abstract Number: 7 • 2018 ACR/ARHP Annual Meeting
RNA Sequencing Detection of Gene Dysregulation in B Cells Sorted from Salivary Gland Tissue and from Peripheral Blood Reveals New Pathways Involved in Primary Sjögren’s Syndrome Pathophysiology
Elodie Rivière^1,2, Nicolas Tchitchek¹, Gaetane Nocturne^1,3, Juliette Pascaud¹, Saida Boudaoud¹, Alice Thai⁴, Normand Allaire⁴, Bernd Jagla⁵, Michael Mingueneau⁴ and Xavier Mariette^1,3, ¹Immunology of viral Infections and Autoimmune Diseases, IDMIT, CEA - Université Paris Sud - INSERM U1184, Le Kremlin Bicêtre & Fontenay aux Roses, France, ²Arthritis Fondation Courtin, Paris, France, ³Rheumatology, Université Paris Sud, Le Kremlin Bicêtre, France, ⁴Immunology Research, Biogen, Cambridge, MA, ⁵Biomarker Discovery Platform UTechS CB, Hub de Bioinformatique et biostatistique C3IB, Institut Pasteur, Paris, France
Background/Purpose: Primary Sjögren's syndrome (pSS) is a chronic auto-immune disorder characterized by lymphocytic infiltrates and destruction of the salivary glands. Chronic B cell activation, the…
Abstract Number: 8 • 2018 ACR/ARHP Annual Meeting
Repertoire Studies in Rheumatoid Arthritis Reveal B-Cell Distortions and Baseline Shifts in Unmutated IgG
Yan Wang¹, Katy A. Lloyd², Sunithi Gunasekera³, Camilla Eriksson³, Daniel Ramsköld², Karin Lundberg⁴, Per-Johan Jakobsson¹, Ulf Göransson³, Vivianne Malmström¹ and Caroline Grönwall⁵, ¹Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ²Rheumatology Unit, Dept of Medicine, Karolinska Institutet, Stockholm, Sweden, ³Division of Pharmacognosy, Dept. of Medicinal Chemistry, Uppsala University, Uppsala, Sweden, ⁴Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, ⁵Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: The immunological hallmark of rheumatoid arthritis (RA) is autoreactivity to citrullinated proteins and rheumatoid factor activity. Hence, the adaptive immune system and B cells…
Abstract Number: 9 • 2018 ACR/ARHP Annual Meeting
Integration of Cytokine Profiles with Distinct B-Cell Functions Reveals a Specific Micro-Environmental Framework in Autoimmune Diseases
Quentin Simon¹, Alexis Grasseau², Bénédicte Rouvière², Laetitia Le Pottier², Divi Cornec³, Maria Orietta Borghi⁴, Rocio Aguilar Quesada⁵, Yves Renaudineau^2,6, Marta Alarcón-Riquelme⁷, Jacques-Olivier Pers¹ and Sophie Hillion^2,6, ¹U1227, Université de Brest, Inserm, Labex IGO, CHU de Brest, Brest, France, ²U1227, Lymphocytes B et Autoimmunité, Université de Brest, Inserm, Brest, France, ³Hopital La Cavale Blanche, Brest, France, ⁴University of Milan, IRCCS Istituto Auxologico Italiano, Milan, Italy, ⁵Biobanco Del Sistema Sanitario Publico de Andalucía, Sevilla, Spain, ⁶CHU de Brest, Brest, France, ⁷Medical Genomics, Center for Genomics and Oncological Research (GENYO), Granada, Spain
Background/Purpose: The functional duality of B cells is central to balance immune homeostasis by regulating or promoting the immune response. However, the mechanisms by which…
Abstract Number: 10 • 2018 ACR/ARHP Annual Meeting
Fibroblast like Synoviocytes (FLS) Are Capable of Inducing Phenotypical Changes Including Class Switch Recombination (CSR) in Naive B Cells, but Additional Factors Are Required to Trigger Immunoglobulin Secretion
Dennis Bleck¹, Torsten Lowin², Matthias Schneider³ and Georg Pongratz⁴, ¹Rheumatology Policlinic & Hiller Research Unit, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany, ²Department and Hiller Research Center for Rheumatology, University Hospital Duesseldorf, Duesseldorf, Germany, ³Department and Hiller Research Center for Rheumatology, Heinrich-Heine University, Duesseldorf, Germany, ⁴Dpt. of Rheumatology - Hiller Research Center Rheumatology, University Hospital Duesseldorf, Duesseldorf, Germany
Background/Purpose: Rheumatoid Arthritis (RA) is a disease characterized by chronic inflammation of the synovial tissue in joints. It is driven by highly activated B cells.…
Abstract Number: 11 • 2018 ACR/ARHP Annual Meeting
PAD4-Independent Interaction of ACPA with Nuclear Antigens in Apoptotic Cells and Neutrophil Extracellular Traps (NETs) Defines a Subset of Autoantibodies
Gustaf Wigerblad¹, Katy A. Lloyd¹, Peter Sahlström², Karine Chemin², Johanna Steen², Philip J. Titcombe^2,3, Diana Zhou², Ragnhild Stålesen¹, Bianka Marklein⁴, Elena Ossipova², Johan Rönnelid⁵, Luca Piccoli⁶, Antonio Lanzavecchia⁶, Daniel L. Mueller³, Karl Skriner⁴, Lars Klareskog², Fredrik Wermeling¹, Vivianne Malmström² and Caroline Grönwall⁷, ¹Rheumatology Unit, Dept of Medicine, Karolinska Institutet, Stockholm, Sweden, ²Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ³The Center for Immunology, Dept. of Medicine, University of Minnesota Medical School, Minneapolis, MN, ⁴Dept. of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany, ⁵Dept. of Immunology Genetics and Pathology, Uppsala University, Uppsala, Sweden, ⁶Università della Svizzera italiana, Institute for Research in Biomedicine, Bellinzona, Switzerland, ⁷Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Rheumatoid arthritis (RA) associated anti-citrullinated protein autoantibodies (ACPA) bind a wide range of citrullinated proteins with high cross-reactivity. Recent findings suggest that certain, but…
Abstract Number: 12 • 2018 ACR/ARHP Annual Meeting
Protein Phosphatase 2A, a Serine/Threonine Phosphatase, Is Essential for Optimal B Cell Function
Esra Meidan¹, Hao Li², Christina Ioannidis³, Wenliang Pan³, Noe Rodriguez Rodriguez⁴, Jose Crispin⁴, Sokratis Apostolidis⁵, John Manis⁶, Amir Sharabi⁷, Maria G. Tsokos³ and George C Tsokos⁸, ¹Division of Immunology, Boston Children's Hospital, Boston, MA, ²Division of Rheumatology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ³Beth Israel Deaconess Medical Center, Boston, MA, ⁴Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición, Mexico City, Mexico, ⁵Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, ⁶Boston Children's Hospital, Boston, MA, ⁷Department of Rheumatology, Beth Israel Deaconess Medical Center, Boston, MA, ⁸Division of Rheumatology, Department of Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, Boston, MA
Background/Purpose: Protein phosphatase 2A (PP2A) is a serine/threonine phosphatase ubiquitously expressed in eukaryotic cells. PP2A levels and activity are increased in T cells from patients…
Abstract Number: 13 • 2018 ACR/ARHP Annual Meeting
Shared Genetic Origins Among Anti-Proteinase 3 and Anti-Glomerular Basement Membrane Double-Positive Human Autoantibodies
Jeffrey R. Ord¹, Amy G. Clark¹ and Mary H. Foster², ¹Duke University Medical Center, Durham, NC, ²Medicine, Duke University Medical Center, Durham, NC
Background/Purpose: Patients with ANCA vasculitis and anti-glomerular basement membrane (GBM) nephritis (Goodpasture’s Disease) develop pathogenic autoantibodies (autoAb) that destroy the microvasculature in lungs and kidneys.…
Abstract Number: 14 • 2018 ACR/ARHP Annual Meeting
Individual RA-Derived Monoclonal Anti-Citrullinated Protein Autoantibodies (ACPA) Have Extensive Citrulline Multi-Reactivity Demonstrated By a Large-Scale Protein Array Platform
Peter Sahlström¹, Johanna Steen¹, Madeleine Jenning², Philip J. Titcombe^1,3, Ute Nonhoff^4,5, Ragnhild Stålesen⁶, Bianka Marklein², Daniel L. Mueller³, Zoltan Konthur⁴, Karin Lundberg⁷, Anca I. Catrina⁶, Lars Klareskog¹, Vivianne Malmström¹, Karl Skriner² and Caroline Grönwall⁸, ¹Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ²Dept. of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany, ³The Center for Immunology, Dept. of Medicine, University of Minnesota Medical School, Minneapolis, MN, ⁴Engine GmbH, Hennigsdorf, Germany, ⁵Max Planck Institute of Colloids and Interfaces, Potsdam, Germany, ⁶Rheumatology Unit, Dept of Medicine, Karolinska Institutet, Stockholm, Sweden, ⁷Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, ⁸Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: The presence of serum IgG anti-citrullinated protein autoantibodies (ACPA) in rheumatoid arthritis (RA), is associated with more aggressive disease progression. Although ACPA have 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: 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: 17 • 2018 ACR/ARHP Annual Meeting
Kappa-Deleting Recombination Excision Circles (KREC) in B Cells and Serum B Cell Activating Factor (BAFF): Possible Aids in Predicting Juvenile Dermatomyositis Response to Rituximab
Amer khojah^1,2, Victoria Hans³, Wilfredo Marin⁴, Gabrielle A. Morgan⁴ and Lauren M. Pachman^5,6,7, ¹Division of Pediatric Rheumatology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, ²Division of Pediatric Allergy Immunology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, ³Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, ⁴Cure JM Program of Excellence in Myositis Research, Stanley Manne Children’s Research Institute, affiliated with Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, ⁵Cure JM Program of Excellence in Juvenile Myositis Research, Stanley Manne Children’s Research Institute, affiliated with Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, ⁶Pediatric Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ⁷Rheumatology/Immunology, Ann & Robert H. Lurie Children's Hosptial of Chicago, Chicago, IL
Background/Purpose: Rituximab is used for the treatment of juvenile dermatomyositis (JDM) with variable success. Some of this variability is presumed to be related to the…
Abstract Number: 18 • 2018 ACR/ARHP Annual Meeting
Cytoplasmic FOXO1 Identifies Novel Disease-Activity Associated B Cell Subsets in SLE
Molly Hritzo¹ and Amit Golding², ¹Microbiology and Molecular Immunology, University of Maryland School of Medicine, Baltimore, MD, ²10 South Pine Street, Baltimore VA/VAMHCS AND University of Maryland School of Medicine, Baltimore, MD
Background/Purpose: A key integrator of external stimuli in lymphocytes, Forkhead box protein O1 (FOXO1) is a highly attractive factor to study in SLE because it…

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