Abstracts tagged "Autoantibody(ies)"

Abstract Number: L11 • ACR Convergence 2024
Rheumatology Diagnostics Utilizing Artificial Intelligence (ANA Reader©) for ANA Pattern Identification and Titer Quantification
May Choi¹, Farbod Moghaddam¹, Mohammad Sajadi¹, Ann E. Clarke¹, Sasha Bernatsky², Karen Costenbader³, Irene Chen⁴, Murray Urowitz⁵, John Hanly⁶, Caroline Gordon⁷, Sang-Cheol Bae⁸, Juanita Romero-Diaz⁹, Jorge Sanchez-Guerrero¹⁰, Daniel Wallace¹¹, David Isenberg¹², Anisur Rahman¹³, Joan Merrill¹⁴, Paul Fortin¹⁵, Dafna Gladman¹⁶, Ian Bruce¹⁷, Michelle Petri¹⁸, Ellen Ginzler¹⁹, Mary Anne Dooley²⁰, Rosalind Ramsey-Goldman²¹, Susan Manzi²², Andreas Jönsen²³, Graciela Alarcón²⁴, Ronald Van Vollenhoven²⁵, Cynthia Aranow²⁶, Meggan Mackay²⁶, Guillermo Ruiz-Irastorza²⁷, S. Sam Lim²⁸, Murat Inanç²⁹, Kenneth Kalunian³⁰, Soren Jacobsen³¹, Christine Peschken³², Diane Kamen³³, Anca Askanase³⁴, Marvin Fritzler³⁵ and Mina Aminghafari¹, ¹University of Calgary, Calgary, AB, Canada, ²Research Institute of the McGill University Health Centre, Montreal, QC, Canada, ³Brigham and Women's Hospital/Harvard Medical School, Boston, MA, ⁴UC Berkeley and UCSF, Berkeley, CA, ⁵Self employed, Toronto, ON, Canada, ⁶Dalhousie University, Halifax, NS, Canada, ⁷University of Birmingham, Birmingham, United Kingdom, ⁸Hanyang University Medical Center, Seoul, South Korea, ⁹The National Institute of Medical Sciences and Nutrition, Mexico City, Mexico, ¹⁰Krembil Research Institute, Toronto, ON, Canada, ¹¹Cedars Sinai Medical Center, Studio City, CA, ¹²Department of Ageing, Rheumatology and Regenerative Medicine, Division of Medicine, University College London, London, United Kingdom, ¹³University College London, London, United Kingdom, ¹⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ¹⁵Centre ARThrite - CHU de Québec - UniversitéLaval, Quebec, QC, Canada, ¹⁶University of Toronto, Toronto Western Hospital, Toronto, ON, Canada, ¹⁷Queen's University Belfast, Belfast, United Kingdom, ¹⁸Johns Hopkins University School of Medicine, Baltimore, MD, ¹⁹SUNY Downstate Health Sciences University, New York, NY, ²⁰UNC physician network, Chapel Hill, NC, ²¹Northwestern University, Chicago, IL, ²²Allegheny Health Network, Pittsburgh, PA, ²³Lund University, Lund, Sweden, ²⁴The University of Alabama at Birmingham, Oakland, CA, ²⁵Amsterdam UMC, Amsterdam, Netherlands, ²⁶Feinstein Institutes for Medical Research, New York, NY, ²⁷Biobizkaia Health Research Institute, Bilbao, Spain, ²⁸Emory University, Atlanta, GA, ²⁹Istanbul University, Istanbul, Turkey, ³⁰UC San Diego, La Jolla, CA, ³¹Rigshospitalet, Copenhagen, Denmark, ³²University of Manitoba, Winnipeg, MB, Canada, ³³Medical University of South Carolina, Johns Island, SC, ³⁴Columbia University Medical Center, New York, NY, ³⁵Mitogen Diagnostics Corp, Calgary, AB, Canada
Background/Purpose: Antinuclear antibody (ANA) immunofluorescence (IFA) patterns and titers are a key part of rheumatology diagnostics, however, there is considerable intra- and inter-laboratory variability with…
Abstract Number: 0009 • ACR Convergence 2024
Comprehensive Autoantibody Profiling Highlights Clinical Relevance of Autoantibodies to G Protein-coupled Receptors in Systemic Sclerosis: Insights from a B-cell Depletion Clinical Trial
Kazuki Matsuda, Shinichi Sato and Ayumi Yoshizaki, The University of Tokyo, Tokyo, Japan
Background/Purpose: Systemic sclerosis (SSc) affects the skin and internal organs with a poor prognosis. While the exact cause remains unclear, increasing evidence indicates that B…
Abstract Number: 0308 • ACR Convergence 2024
Interstitial Lung Disease as the First Clinical Manifestation of Connective Tissue Diseases
Juan A. Meraz-Ostiz, Aina Puiggròs-Ferrer, Núria Bou, Irene Carrión-Barberà, Jordi Monfort, Carolina Pérez-García, Diana Badenes, Eva Balcells and Anna Pros-Simon, Hospital del Mar, Barcelona, Spain
Background/Purpose: Interstitial lung disease (ILD) is a common complication of connective tissue diseases (CTDs), significantly influencing prognosis and mortality. The prevalence and characteristics of new…
Abstract Number: 0673 • ACR Convergence 2024
BCMA-CD19 Compound CAR-T (cCAR) Safely Provides a Complete Humoral Reset Eliminating All Autoantibodies Resulting in Long-term Medication-Free Complete Remission Among Systemic Lupus Erythematosus (SLE) and Lupus Nephritis (LN) Patients
Yong Yuan¹, Shanzhi He², Wenli Zhang³, Hongyu Zhang⁴, Vincent M DeStefano⁵, Masayuki Wada⁵, Kevin Pinz⁵, Greg Deener⁵, Yu Ma⁶, Min Wang², Fugui Li⁷, Ming Hong¹, Chanjuan Zou², Mingxia Wang², Ling Ding², Yingwen Liang⁸, Yupo Ma⁵ and Weija Wang⁹, ¹Department of Translational Medicine, Zhongshan people's Hospital, Zhongshan, China (People's Republic), ²Department of Rheumatoid Immunology, Zhongshan people's Hospital, Zhongshan, China (People's Republic), ³Department of Hematology, Peking University Shenzhen Hosptial, Shenzhen, China (People's Republic), ⁴Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, China (People's Republic), ⁵iCell Gene Therapeutics, Inc., Stony Brook, NY, ⁶iCAR Bio Therapeutics Ltd, Zhongshan, China (People's Republic), ⁷Department of Translational Medicine. Zhongshan people's Hospital, Zhongshan, China (People's Republic), ⁸Department of Translational Medicine, Zhongshan's people Hospital, Zhongshan, China (People's Republic), ⁹Department of Translational Research, Zhongshan people's Hospital, Zhongshan, China (People's Republic)
Background/Purpose: Medication free complete remission (CR) has been elusive in SLE. An open label investigator-initiated trial (IIT) infused SLE/LN patients with a novel cCAR targeting…
Abstract Number: 1161 • ACR Convergence 2024
Characterization of the Clinical Presentation of Idiopathic Inflammatory Myopathies According to the Profile of Specific Autoantibodies with Multiple Positivity
Adriana Miguel-Álvarez¹, luis M Amezcua Guerra², María L Loredo-Mendoza¹, Luis H. Silveira Torre³ and Angélica Vargas Guerrero⁴, ¹Instituto Nacional de Cardiología "Ignacio Chávez", México, Distrito Federal, Mexico, ²Department of Immunology, Instituto Nacional de Cardiología Ignacio Chávez., México, Mexico, ³Department of Rheumatology , Instituto Nacional de Cardiología Ignacio Chávez., Mexico City, Mexico, ⁴Department of Rheumatology , Instituto Nacional de Cardiología Ignacio Chávez., México, Mexico
Background/Purpose: The aim of this study is to assess if there are clinical and serological differences in patients with idiopathic inflammatory myopathies (IIM) according to…
Abstract Number: 1589 • ACR Convergence 2024
Whole Skin Gene Expression Analysis Identifies Discrete Modules That Differentiate Antinuclear Antibody Subsets in Systemic Sclerosis
Kristina Clark¹, Corrado Campochiaro², Philip Yee³, Emma Derrett-Smith⁴, Voon Ong⁵ and Christopher Denton⁶, ¹University of Oxford, Oxford, United Kingdom, ²IRCCS San Raffaele Hospital. Vita-Salute San Raffaele University, Milan, Milan, Italy, ³UCL, London, United Kingdom, ⁴University College London Division of Medicine, Birmingham, United Kingdom, ⁵University College London, London, England, United Kingdom, ⁶University College London, Northwood, United Kingdom
Background/Purpose: Hallmark autoantibody reactivities predict different patterns of skin involvement and risk of internal organ involvement. We have asked whether whole skin gene expression may…
Abstract Number: 1851 • ACR Convergence 2024
Aberrant Tfh Cells Generated by Th17 Cell Plasticity in the Gut Promote Autoimmune Arthritis
Joyce Wu, The Ohio State University, Columbus, OH
Background/Purpose: Much remains unknown regarding T follicular helper 17 (Tfh17) cells in autoimmunity. We previously showed, and here ask why, egress of gut segmented filamentous…
Abstract Number: 2305 • ACR Convergence 2024
Anti-Ku Positivity in Primary Sjögren’s Disease Is Associated with a More Systemic Active Disease
Marie ROBERT¹, Yann Nguyen², Yurdagül Uzunhan³, Benjamin Terrier⁴, Yves Allenbach⁵, Alain Meyer⁶, Jacques-Eric Gottenberg⁷, JEROME HADJADJ⁸, Zahir Amoura⁹, ARNAUD HOT¹⁰, Eléonore Bettacchioli¹¹, Elisabeth Aslangul¹², Rakiba Belkhir¹³, Frederic Desmoulins¹⁴, Elisabeth Bergé¹⁴, Pascale Chrétien¹⁵, Pascale Roland-Nicaise¹⁶, Claire Goulvestre¹⁷, Jean-Luc Charuel¹⁸, Benoit Nespola¹⁹, Nicole Fabien²⁰, Eric Ballot²¹, Gaetane Nocturne¹⁴, Xavier Mariette¹⁴, Samuel Bitoun¹ and Raphaele Seror²², ¹Service de Rhumatologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicetre, France, ²Université Paris Saclay, Clichy, Ile-de-France, France, ³Service de Pneumologie, Hôpital Avicenne, AP-HP, Bobigny, France, ⁴Service de Médecine interne, Hôpital Cochin, AP-HP, Paris, Ile-de-France, France, ⁵Service de Médecine interne et immunologie clinique, Hôpital Pitié-Salpêtrière, AP-HP, Paris, France, ⁶UR3072, Physiology Department, Rheumatology Department, University Hospital of Strasbourg, Strasbourg, France, ⁷Rheumatology Department, Strasbourg University Hospital,, Strasbourg, France, ⁸Service de Médecine interne, Hôpital Saint-Antoine, AP-HP, Paris, Ile-de-France, France, ⁹French National Reference Centre for Systemic Lupus Erythematosus, Pitié-Salpêtrière Hospital, Paris, France, ¹⁰Service de Médecine interne, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France, ¹¹Service de Rhumatologie, CHU de Brest, Brest, France, ¹²Service de Médecine interne, Hôpital Louis Mourier, AP-HP, Colombes, France, ¹³Service de Rhumatologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France, ¹⁴Service de Rhumatologie, Hôpital Bicêtre, AP-HP, Le Kremlin Bicetre, France, ¹⁵Laboratoire d'immunologie, Hôpital Bicêtre, AP-HP, le Kremlin Bicetre, France, ¹⁶Laboratoire d'immunologie, Hôpital Bichat, AP-HP, Paris, France, ¹⁷Laboratoire d'immunologie, Hôpital Cochin, AP-HP, Paris, Ile-de-France, France, ¹⁸Laboratoire d'immunologie, Hôpital Pitié-Salpêtrière, AP-HP, Paris, France, ¹⁹Laboratoire d’immunologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France, ²⁰Laboratoire d'immunologie, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France, ²¹Laboratoire d'immunologie, Hôpital Saint-Antoine, AP-HP, Paris, Ile-de-France, France, ²²Service de Rhumatologie, Hôpital Bicêtre, AP-HP, le Kremlin Bicetre, Ile-de-France, France
Background/Purpose: Sjögren’s disease (SjD) is an autoimmune disease characterized by a wide range of symptoms, and 30% to 60% of patients developed systemic manifestations. The…
Abstract Number: 0013 • ACR Convergence 2024
Preclinical Polypharmacology of S-1117, a Novel Engineered Fc-fused IgG Degrading Enzyme, for Chronic Treatment of Autoantibody-mediated Diseases
Julia Manasson¹, Liliana Sanmarco², Alex Pellerin², Jordan Anderson², Nathan Rollins², Tobias Green², Agustin Plasencia², Andita Newton², Ryan Peckner², Yi Xing², Heather Vital³, Nathan Higginson-Scott², John Sundy⁴, Kevin L. Otipoby² and Ivan Mascanfroni², ¹Seismic Therapeutic, New York, NY, ²Seismic Therapeutic, Watertown, MA, ³Seismic Therapeutic, Lexington, MA, ⁴Seismic Therapeutic, Chapel Hill, NC
Background/Purpose: Pathogenic autoantibodies are key effectors of inflammation, promoting immune cell responses that cause tissue damage in autoantibody-mediated diseases such as idiopathic inflammatory myopathies, lupus…
Abstract Number: 0319 • ACR Convergence 2024
Sporadic Inclusion Body Myositis Novel Autoantibody and Biomarker Research Utilizing Proteome Microarray and Mass Spectrometry Proteomics Analysis
Farbod Moghaddam¹, Mark Tarnopolsky², Valérie Leclair³, marie Hudson³, Ross Mitchell⁴, Katherine Buhler¹, Erin Hatcher⁵, Meifeng Zhang¹, Antoine Dufour¹, Luiz de Almeida¹, Marvin Fritzler⁶ and May Choi¹, ¹University of Calgary, Calgary, AB, Canada, ²McMaster University, Hamilton, ON, Canada, ³McGill University, Montreal, QC, Canada, ⁴University of Alberta, Edmonton, Canada, ⁵McMaster University, Hamilton, Canada, ⁶Mitogen Diagnostics Corp, Calgary, AB, Canada
Background/Purpose: Sporadic inclusion body myositis (sIBM) is often challenging to diagnose because many patients have no known biomarkers (seronegative). Machine learning was applied to identify…
Abstract Number: 0697 • ACR Convergence 2024
Association of ANCA-Associated Vasculitis and Development of SSc and SSc-Associated Antibodies: Impact of Pulmonary Arterial Hypertension
Brett Dinner¹, Ahmed Abdelmaksoud², Ann Igoe³, Taylor Viggiano⁴ and Vivek Nagaraja⁵, ¹Creighton University, Paradise Valley, AZ, ²University of California, Riverside, Riverside, CA, ³Flow, Tempe, AZ, ⁴Mayo Clinic, Phoenix, ⁵Mayo Clinic Arizona, Scottsdale, AZ
Background/Purpose: Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a spectrum of autoimmune disorders characterized by necrotizing small-to-medium vessel inflammation and circulating ANCAs. Represented by granulomatosis…
Abstract Number: 1164 • ACR Convergence 2024
IVIG Treatment Duration in Immune-mediated Necrotizing Myopathy and a Possible Association of Vacuolar Changes with Black/African American Female Patients
Asim Mohamed¹, Liron Caplan² and Melissa Griffith³, ¹PGY5, Aurora, CO, ²Rocky Mountain Regional VAMC, Aurora, CO, ³University of Colorado, Aurora, CO
Background/Purpose: Immune Mediated Necrotizing Myopathy (IMNM) is a debilitating but understudied entity. Correlations of demographic and clinical features with pathological findings remain underexplored. In addition,…
Abstract Number: 1603 • ACR Convergence 2024
Antineutrophil Cytoplasmic Autoantibody Levels in Patients in the Avacopan Phase 3 Trial
Frank B. Cortazar¹, Duvuru Geetha², Salem Almaani³, Christina Song⁴, Tomasz M. Wilmanski⁴, Alana M. Bozeman⁴, Peter Merkel⁵ and David Jayne⁶, and ADVOCATE Study Group, ¹New York Nephrology Vasculitis and Glomerular Center, Saint Peter’s Hospital-Albany, Albany, NY, ²Johns Hopkins University, Baltimore, MD, ³The Ohio State University Medical Center, Columbus, OH, ⁴Amgen Inc., Thousand Oaks, CA, ⁵University of Pennsylvania, Philadelphia, PA, ⁶University of Cambridge, Cambridge, United Kingdom
Background/Purpose: The utility of measuring serial antineutrophil cytoplasmic autoantibody (ANCA) levels to guide treatment in granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA) is controversial.…
Abstract Number: 1858 • ACR Convergence 2024
Co-modification of Citrullinated Proteins with Malondialdehyde-Acetaldehyde Leads to Amplified T Cell Responses and Increased Disease-specific Autoantibody Concentrations
Breanna Butler¹, Wenxian Zhou², Michael Duryee¹, Nozima Aripova¹, Engle Sharp¹, Carlos Hunter¹, Bridget Kramer¹, Harlan Sayles¹, James O'Dell¹, Geoffrey Thiele¹, Bryant England¹, Joshua Baker³, Andreas Reimold⁴, Gail Kerr⁵ and Ted Mikuls¹, ¹University of Nebraska Medical Center, Omaha, NE, ²University of Nebraska Medical Center, Bellevue, NE, ³University of Pennsylvania, Philadelphia, PA, ⁴Dallas VA Medical Center, Dallas, TX, ⁵Washington DC VAMC/Georgetown and Howard Universities, Washington, DC
Background/Purpose: Anti-citrullinated protein antibody (ACPA) is highly specific to rheumatoid arthritis (RA). Beyond citrullination, other post-translational protein modifications including malondialdehyde-acetaldehyde (MAA) are targeted by T…
Abstract Number: 2315 • ACR Convergence 2024
Exploring Antibodies in Psoriatic Arthritis: A Novel Autoimmune Biomarker Discovered
Theo WIRTH¹, Emmanuel Massy², Nathalie Lambert³, Isabelle Auger³, Nathalie Balandraud¹ and Florent Amatore⁴, ¹Department of Rheumatology, Sainte Marguerite Hospital, Assistance Publique des Hôpitaux de Marseille, Aix Marseille University, Marseille, France, ²Department of Rheumatology, Lyon Sud Hospital, Hospices Civils de Lyon, Lyon, France, ³INSERM UMRs1097, Arthrites autoimmunes, Marseille, Marseille, France, ⁴Department of Dermatology, Nord hospital, Assistance Publique des Hôpitaux de Marseille, Aix Marseille University, MARSEILLE 9EME, France
Background/Purpose: Psoriatic arthritis (PsA) can be challenging to diagnose due to the lack of specific biomarkers. Although a few teams have demonstrated the presence of…

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