Abstracts tagged "Autoantibody(ies)"

Abstract Number: 0788 • ACR Convergence 2020
Rigorous Plasma Microbiome Analysis Method Enables Disease Association Discovery
Wei Jiang¹, Alexander Alekseyenko², Gary Gilkeson³, Jim Oates⁴, Elizabeth Ogunrind⁵, Quan Li⁶, Diane Kamen², Betty Tsao⁵ and Zhenwu Luo⁵, ¹MUSC, Charleston, SC, ²Medical University of South Carolina, Charleston, SC, ³Division of Rheumatology, Medical University of South Carolina, Charleston, SC, ⁴Medical University of South Carolina, Charleston, SC, Charleston, SC, ⁵Medical University of South Carolina, Charleston, ⁶UT South Western Medical Center, Texas
Background/Purpose: The mucosal microbiome contributes to disease pathogenesis via local and systemic interaction with the host. The hallmark of this interaction in the physiological condition…
Abstract Number: 1086 • ACR Convergence 2020
The Diagnostic Value and Clinical Significance of Myositis-Specific Antibodies in Patients Suspected to Have Autoimmune Myopathies and/or Autoimmune Rheumatic Diseases
Sarah El Chami¹, Christopher Williams¹, Ghaith Noaiseh¹, Amrita Bath¹ and Duaa Jabari¹, ¹The University of Kansas Health System, Kansas city, KS
Background/Purpose: Myositis-specific antibodies (MSA) are thought to be highly specific in patients with idiopathic inflammatory myopathies.[1] However, in clinical practice these antibodies are frequently found…
Abstract Number: 1505 • ACR Convergence 2020
Antibodies Binding Ro/SSA and Muscarinic 3 Receptor in Sjogren’s Syndrome
R. Scofield¹, Syed Quadri², Valerie Harris², Biji Kurien² and Kristi Keolsch², ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²University of Oklahoma Health Sciences Center, Oklahoma City, OK
Background/Purpose: Sjögren’s syndrome is characterized by exocrine gland dysfunction and autoantibody production. Some data suggest autoantibodies binding the muscarinic 3 receptor (M3R) mediate poor function…
Abstract Number: 2050 • ACR Convergence 2020
Autoantibodies Targeting Complement Receptors C3aR and C5aR1 Are Decreased in ANCA-associated Vasculitis and Correlate with a Higher Relapse Rate
Sebastian Klapa¹, Antje Müller², Andreas Koch³, Anja Kerstein-Staehle⁴, Wataru Kaehler³, Harald Heidecke⁵, Susanne Schinke⁶, Markus Huber-Lang⁷, Martin Nitschke⁸, Silke Pitann⁹, Christian Karsten¹⁰, Gabriela Riemekasten¹¹ and Peter Lamprecht², ¹University of Lübeck and Institute of Experimental Medicine, Christian-Albrechts-University of Kiel c/o German Naval Medical Institute, Department of Rheumatology and Clinical Immunology, Luebeck, Germany, ²University of Lübeck, Department of Rheumatology and Clinical Immunology, Lübeck, Germany, ³Institute of Experimental Immunology, Christian-Albrechts-University Kiel, c/o German Naval Medical Institute, Kronshagen, Germany, ⁴University of Lübeck, Dept Rheumatology and Clinical Immunology, Luebeck, Germany, ⁵CellTrend GmbH, Luckenwalde, Germany, ⁶University of Lübeck, Department of Rheumatology and Clinical Immunology, Luebeck, Germany, ⁷Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany, ⁸Department of Internal Medicine I, Transplant Center, University of Lübeck, Luebeck, Germany, ⁹University of Lübeck, Department of Rheumatology and Clinical Immunology,, Luebeck, Germany, ¹⁰Institute of Systemic Inflammation Research, University of Lübeck, Luebeck, Germany, ¹¹University of Lübeck, Department of Rheumatology and Clinical Immunology,, Lübeck, Germany
Background/Purpose: Activation of the alternative and common terminal complement pathways has been shown in ANCA-associated vasculitis (AAV). Circulating titers of the anaphylatoxin C5a are increased…
Abstract Number: 0289 • ACR Convergence 2020
Endogenous Interferon-β and Low IL-4R on Transitional B Cells Promotes Lupus Nephritis
Fatima Alduraibi¹, Huma Fatima¹, W. Winn Chatham¹, Hui-Chen Hsu¹ and John Mountz², ¹University of Alabama at Birmingham, Birmingham, AL, ²University Alabama at Birmingham and Birmingham VA Medical Center, Birmingham, AL
Background/Purpose: We previously showed that B-cell endogenous interferon-beta (IFNβ) at the transitional (Tr) stage correlates with development of anti-Smith (anti-Sm) and renal disease as well…
Abstract Number: 0790 • ACR Convergence 2020
Vitamin D Polygenetic Risk Score and the Association with RA Autoantibodies Among First-Degree Relatives of RA Subjects
Elizabeth Bemis¹, Kendra Young², Jennifer Seifert³, Marie Feser⁴, Kevin D. Deane⁵, M Kristen Demoruelle⁶, James O'Dell⁷, Michael Weisman⁸, Peter Gregersen⁹, Richard Keating¹⁰, William Robinson¹¹, Jane Buckner¹², Carl Langefeld¹³, Joel Guthridge¹⁴, Judith James¹⁵, V Michael Holers⁴ and Jill Norris¹⁶, ¹Colorado School of Public Health Anschutz Medical Campus, Aurora, CO, ²University of Colorado Denver, Aurora, CO, ³UC Denver, Littleton, CO, ⁴Division of Rheumatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA, Colorado, ⁵2 Division of Rheumatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA, Colorado, ⁶University of Colorado, Denver, CO, ⁷University of Nebraska Medical Center, Omaha, NE, ⁸Cedars Sinai Medical Center, David Geffen School of Medicine at UCLA, Los Angeles, CA, ⁹5. Feinstein Institute Medical Research and North Shore-Long Island Jewish Health System, Manhasset, NY, ¹⁰Scripps Clinic/Scripps Green Hospital, La Jolla, CA, ¹¹Stanford University, Palo Alto, CA, ¹²Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA, ¹³Wake Forest School of Medicine, Winston Salem, NC, ¹⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ¹⁵Oklahoma Medical Research Foundation, Oklahoma City, ¹⁶Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA, Colorado
Background/Purpose: Rheumatoid arthritis (RA) is a complex autoimmune disease whose etiology remains largely unknown. Vitamin D has been widely studied due to its association with…
Abstract Number: 1098 • ACR Convergence 2020
Anti-cortactin Autoantibodies Are Associated with Key Clinical Features in Adult Myositis but Are Rarely Present in Juvenile Myositis
Iago Pinal-Fernandez¹, Katherine Pak², Albert Gil-Vila³, Andres Baucells⁴, Benjamin Plotz⁵, Maria Casal-Dominguez⁶, Assia Derfoul⁷, Maria Angeles Martinez⁴, Albert Selva-O'Callaghan³, Sara Sabbagh⁸, Frederick W. Miller¹, Lisa G. Rider⁹, Lisa Christopher-Stine¹⁰ and Andrew Mammen⁶, ¹National Institutes of Health, Bethesda, MD, ²NIAMS, NIH, Bethesda, MD, ³Vall d’Hebron Hospital, Barcelona, Spain, ⁴Sant Pau Hospital, Barcelona, Spain, ⁵Division of Rheumatology, New York University Langone Health, New York, NY, ⁶NIH, Bethesda, MD, ⁷NIAMS, NIH, Bethesda, ⁸Division of Rheumatology, Department of Pediatrics, Medical College of Wisconsin, Washington, DC, ⁹Environmental Autoimmunity Group, Clinical Research Branch, NIEHS, NIH, Garrett Park, MD, ¹⁰Johns Hopkins University, Baltimore, MD
Background/Purpose: To define the prevalence and clinical phenotype of anti-cortactin autoantibodies in adult and juvenile myositis.Methods: In this longitudinal cohort study, anti-cortactin autoantibody tiers were…
Abstract Number: 1507 • ACR Convergence 2020
Longitudinal Analysis of ANA Assay Performance in SLE from the SLICC Inception Cohort
May Choi¹, Ann Clarke², Karen Costenbader³, Murray Urowitz⁴, John Hanly⁵, Caroline Gordon⁶, Yvan St. Pierre⁷, Sang-Cheol Bae⁸, Juanita Romero-Díaz⁹, F Jorge Sanchez-Guerrero¹⁰, Sasha Bernatsky¹¹, Daniel Wallace¹², David Isenberg¹³, Anisur Rahman¹⁴, Joan Merrill¹⁵, Paul Fortin¹⁶, Dafna Gladman¹⁷, Ian Bruce¹⁸, Michelle Petri¹⁹, Ellen M Ginzler²⁰, Mary Anne Dooley²¹, Rosalind Ramsey-Goldman²², Susan Manzi²³, Andreas Jönsen²⁴, Graciela Alarcón²⁵, Ronald F Van Vollenhoven²⁶, Cynthia Aranow²⁷, Meggan Mackay²⁸, Guillermo Ruiz-Irastorza²⁹, S. Sam Lim³⁰, Murat Inanc³¹, Kenneth Kalunian³², Søren Jacobsen³³, Christine Peschken³⁴, Diane Kamen³⁵, Anca Askanase³⁶ and Marvin Fritzler³⁷, ¹Brigham and Women's Hospital | Cumming School of Medicine, University of Calgary, Calgary, AB, Canada, ²University of Calgary, Calgary, Canada, ³Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁴University Health Network, University of Toronto, Toronto, ON, Canada, ⁵Dalhousie University, Halifax, NS, Canada, ⁶University of Birmingham, Birmingham, England, United Kingdom, ⁷McGill University, Montreal, Canada, ⁸Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea, ⁹Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City, Mexico, ¹⁰University Health Network/Sinai Health system, Toronto, ON, Canada, ¹¹The Research Institute of the McGill University Health Centre, Montreal, ON, Canada, ¹²Cedars-Sinai Medical Center/UCLA, Los Angeles, CA, ¹³Centre for Rheumatology, University College London and Department of Rheumatology, University College Hospital, London, United Kingdom, ¹⁴University College London, London, United Kingdom, ¹⁵Oklahoma Medical Research Foundation, Oklahoma City, ¹⁶CHU de Quebec - Universite Laval, Quebec, Canada, ¹⁷Krembil Research Institute, Toronto Western Hospital, Toronto, ON, Canada, ¹⁸Centre for Epidemiology Versus Arthritis, The University of Manchester and NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom, ¹⁹Johns Hopkins University School of Medicine, Timonium, MD, ²⁰SUNY Downstate Health Sciences University, Brooklyn, ²¹University of North Carolina, Chapel Hill, NC, ²²Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ²³Lupus Center of Excellence, Autoimmunity Institute, Allegheny Health Network, Pittsburgh, PA, ²⁴Lund University, Lund, Sweden, ²⁵Division of Clinical Immunology and Rheumatology, Department of Medicine, School of Medicine, The University of Alabama at Birmingham; Department of Medicine, School of Medicine; Universidad Peruana Cayetano, Heredia, Alabama, ²⁶Department of Rheumatology, Amsterdam Rheumatology and Immunology Center, Amsterdam, Netherlands, ²⁷Feinstein Institutes for Medical Research, Manhasset, NY, ²⁸Feinstein Institute for Medical Research, Manhasset, NY, ²⁹Hospital Universitario Cruces, Barakaldo, Spain, ³⁰Emory University, Atlanta, GA, ³¹Department of Rheumatology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey, ³²University of California San Diego, La Jolla, CA, ³³University of Copenhagen, Copenhagen, Denmark, ³⁴Departments of Medicine and Community Health Sciences, University of Manitoba, Winnipeg, MB, Canada, ³⁵Medical University of South Carolina, Charleston, SC, ³⁶Columbia University College of Physicians and Surgeons, New York, NY, ³⁷Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
Background/Purpose: Anti-nuclear antibodies (ANA) are important biomarkers for the diagnosis and classification of systemic lupus erythematosus (SLE). However, emerging data from cross-sectional studies suggest variation…
Abstract Number: 0291 • ACR Convergence 2020
SLAMF7 and CD38 on NK Cells Represent Potential New Therapeutic Targets for Systemic Lupus Erythematosus
Morgane Humbel¹, Florence Bellanger², Craig Fenwick², Alice Horisberger², Camillo Ribi² and Denis Comte², ¹CHUV, Lausanne, Vaud, Switzerland, ²CHUV, Lausanne, Switzerland
Background/Purpose: Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease characterized by the production of autoantibodies. For this reason, anti-B cell therapy seems to be…
Abstract Number: 0846 • ACR Convergence 2020
MHC Class I Epitopes Derived from Autoantibody Variable Regions, Conjugated to Synthetic Oligodeoxynuleotides, Induce Cytotoxic T Cells That Deplete Autoreactive B Cells and Ameliorate Murine Lupus
Ram Singh¹, ¹UCLA David Geffen School of Medicine, Los Angeles, CA
Background/Purpose: B cell depletion or modulation is emerging as a major treatment modality for autoimmune diseases. However, the current treatments to accomplish this non-specifically target…
Abstract Number: 1248 • ACR Convergence 2020
Patients Seropositive for La/SSB Without Ro/SSA Differ from Those Displaying La/SSB with Ro/SSA in a Single Center Sjogren’s Cohort
Rana Mongroo¹, Samira Chowdhury² and Steven Carsons², ¹Mount Sinai South Nassau Hospital, Mineola, NY, ²NYU Winthrop Hospital, Mineola, NY
Background/Purpose: Sjögren’s disease (SS) is characterized by the presence of antibodies against protein-small RNP complexes designated Ro/SSA and La/SSB. Both are included in the 2002…
Abstract Number: 1511 • ACR Convergence 2020
Clinical Features and Select Dysregulated Immune Parameters Distinguish Blood Relatives Who Remain Clinically Stable or Progress to Incomplete Lupus or Classified SLE in the Lupus Autoimmunity in Relatives (LAUREL) Follow-up Cohort
Melissa Munroe¹, Kendra Young², Jill Norris³, Joel Guthridge⁴, Diane Kamen⁵, Timothy Niewold⁶, Gary Gilkeson⁷, Michael Weisman⁸, Mariko Ishimori⁹, Daniel Wallace¹⁰, David Karp¹¹, John Harley¹² and Judith James¹³, ¹Oklahoma Medical Research Foundation/Progentec Diagnostics, Inc., Oklahoma City, OK, ²University of Colorado Denver, Aurora, CO, ³Colorado School of Public Health, Aurora, CO, ⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁵Medical University of South Carolina, Charleston, SC, ⁶NYU School of Medicine, New York, NY, ⁷Division of Rheumatology, Medical University of South Carolina, Charleston, SC, ⁸Distinguished Professor of Medicine Emeritus, David Geffen School of Medicine at UCLA, LOS ANGELES, CA, ⁹Cedars-Sinai Medical Center, Los Angeles, CA, ¹⁰Cedars-Sinai Medical Center/UCLA, Los Angeles, CA, ¹¹UT Southwestern Medical Center, Dallas, TX, ¹²Cincinnati Children's Hospital Medical Center/Univ of Cincinnati College of Medicine, Cincinnati, OH, ¹³Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation;Department of Pathology, University of Oklahoma Health Sciences Center;Department of Medicine, University of Oklahoma Health Sciences Center, Edmond, OK
Background/Purpose: Identifying populations at risk of SLE is essential to curtail inflammatory damage and identify individuals for prevention trials. Unaffected blood relatives (BRs) of lupus…
Abstract Number: 0293 • ACR Convergence 2020
Contraction of the Stool Taxa Clostridia Is Associated with the Development of Clinical Disease Among Anti-Ro+ Mothers of Children with Neonatal Lupus
Robert Clancy¹, Miranda Marion², Peter Izmirly³, Mala Masson⁴, Hannah Ainsworth², Timothy Howard⁵, Jill Buyon⁶ and Carl Langefeld⁷, ¹NYU School of Medicine, New York, ²Wake Forest School of Medicine, Winston-Salem, ³Department of Medicine, New York University School of Medicine, New York, NY, ⁴New York University School of Medicine, New York, ⁵Wake Forest School of Medicine, Winston-Salem, NC, ⁶Department of Medicine, NYU School of Medicine, New York, NY, ⁷Wake Forest School of Medicine, Winston Salem, NC
Background/Purpose: Anti-Ro autoantibody production often precedes the development of systemic lupus erythematosus (SLE) or Sjögren’s syndrome (SS) by years. Anti-Ro+ mothers of children with manifestations…
Abstract Number: 0847 • ACR Convergence 2020
Impact of Hydroxychloroquine Treatment on Immunologic Markers in SLE Depends on Ethnicity
Laurence Magder¹, Daniel Goldman² and Michelle Petri², ¹University of Maryland, Baltimore, Baltimore, MD, ²Johns Hopkins University School of Medicine, Timonium, MD
Background/Purpose: SLE patients with certain immunological markers (i.e., anti-DNA, low complement) are at higher risk of lupus nephritis and those with antiphospholipid antibodies are at…
Abstract Number: 1250 • ACR Convergence 2020
Early Sjögren Antibodies: Potential Biomarker for Abnormal Minor Labial Salivary Gland Biopsy in Juvenile Sjögren’s Syndrome
Akaluck Thatayatikom¹, Sthorn Thatayatikom¹, Indraneel Bhattacharyya², Melissa Elder¹, Renee Modica¹ and Seunghee Cha², ¹Department of Pediatrics, University of Florida, Gainesville, FL, ²College of Dentistry, University of Florida, Gainesville, FL
Background/Purpose: Juvenile Sjögren’s Syndrome (jSS) is a perplexing systemic autoimmune disease in children presenting with positive autoantibodies, glandular, and/ or extraglandular symptoms. In pediatric practice,…

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