Abstracts tagged "Autoantibody(ies)"

Abstract Number: 1561 • ACR Convergence 2024
Association of Large Vessel 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: Large vessel vasculitis (LVV) comprises a spectrum of rare, potentially life-threatening disorders, including giant cell arteritis (GCA) and Takayasu's arteritis (TAK), defined by granulomatous…
Abstract Number: 1788 • ACR Convergence 2024
Memory B Cell Activation and Dysregulation in Systemic Lupus Erythematosus
Shady Younis¹, Salvinaz Moutusy², Shaghayegh Jahanbani², Xiaohao Wu², Marlayna Harris², Mahesh Pandit³, Laura van Dam⁴, orr Sharpe⁵, Paul Utz¹ and William Robinson⁶, ¹Stanford University, Stanford, CA, ²Stanford University School of Medicine, Stanford, ³Stanford University School of Medicine, Stanofrd, ⁴Stanford, Palo Alto, CA, ⁵Department of Immunology and Rheumatology, Stanford University, Stanford, CA, ⁶Division of Immunology and Rheumatology, Stanford University, and VA Palo Alto Health Care System, Stanford, CA
Background/Purpose: B cell dysregulation and production of autoantibodies against autoantigens are hallmarks of Systemic lupus erythematosus (SLE). In healthy adults (HC), B cells with autoreactive…
Abstract Number: 2233 • ACR Convergence 2024
Maximizing Diagnostic Sensitivity: Combined Anti-RA33, Anti-CarP, and Anti-PAD4 Autoantibodies in Seronegative Rheumatoid Arthritis
Andrew Concoff¹, Touba Warsi², Sepehr Taghavi², Sudha Kumar², Abigail Patalinghug², Christine Schleif², Brittany Partain³, Joseph Ahearn⁴, Susan Manzi⁵, Michael Mahler⁶, Veena Joy⁷ and Tyler O'Malley⁸, ¹Exagen, Inc., Los Angeles, CA, ²Exagen, Carlsbad, CA, ³Exagen, Boston, MA, ⁴Allegheny Health Network, Wexford, PA, ⁵Allegheny Health Network, Pittsburgh, PA, ⁶Werfen, San Diego, CA, ⁷ThermoFisher, Philadelphia, PA, ⁸Exagen, Vista, CA
Background/Purpose: Studies have found autoantibodies (Ab) directed against heterogeneous nuclear ribonucleoprotein A2/B1 (anti-RA33), peptidyl arginine deiminase 4 (anti-PAD4) and carbamylated proteins (anti-CarP) each have diagnostic…
Abstract Number: 2668 • ACR Convergence 2024
Do Levels of anti-Jo1 Autoantibodies Have a Prognostic Role? Longitudinal Assessment of anti-Jo1 and HisRS Protein Levels in a Cohort of anti-Jo1 Positive Patients with Anti-synthetase Syndrome
Silvia Cavalli¹, Fabricio Espinosa-Ortega², Ryan A. Adams³, Lauren Guy³, Charlotta Preger⁴, Càtia Fernandes-Cerqueira⁵, Roberto Caporali⁶, Ingrid Lundberg⁷ and Antonella Notarnicola⁸, ¹University of Milan, Milan, Milan, Italy, ²Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet; Department of Gastro, Dermatology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden, Stockholm, Stockholms Lan, Sweden, ³aTyr Pharma, 3545 John Hopkins Court, Suite 250, San Diego, CA, ⁴Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet;5Structural Genomics Consortium, Stockholm, Sweden, Stockholm, Stockholms Lan, Sweden, ⁵4Dcell, Montrueil, Ile-de-France, France, ⁶Department of Clinical Sciences and Community Health, University of Milan, and Department of Rheumatology and Medical Sciences, ASST Gaetano Pini-CTO, Milan, Italy, ⁷Karolinska Universitetssjukhuset, Karolinska Institutet, Stockholm, Sweden, ⁸Karolinska University Hospital and Karolinska Institutet, Stockholm, Stockholms Lan, Sweden
Background/Purpose: The anti-Jo1 autoantibody (aJo1), targeting the histidyl-tRNA synthetase (HisRS) protein, is the most common diagnostic biomarker of the anti-synthetase syndrome (ASSD). So far, conflicting…
Abstract Number: 0158 • ACR Convergence 2024
Rheumatoid Arthritis Testing Patterns by Physicians and Advanced Practice Providers from a National Commercial Laboratory, 2014 – 2023
Karis Lee¹, Min Kyung Lee², David Alfego³, Kristen Clark⁴ and Stanley Naides⁵, ¹Labcorp, Orlando, FL, ²Labcorp, San Diego, CA, ³Labcorp, Carlsbad, CA, ⁴Labcorp, Raleigh, NC, ⁵Labcorp, Dana Point, CA
Background/Purpose: With the commercialization of new diagnostic and monitoring tests for rheumatoid arthritis (RA) and an increasing number of advanced practice providers (APPs) in the…
Abstract Number: 0629 • ACR Convergence 2024
Evaluating the Concordance Between SRI4 and BICLA Using Placebo Data from Randomized Controlled Trials of Patients with Active Systemic Lupus Erythematosus
Anca Askanase¹, Edward Vital², Oliver Meier³, Armando Turchetta⁴, Huiyan (Ashley) Mao⁴, Justine Maller⁵, Jorge A. Ross Terres⁶ and Maria Dall'Era⁷, ¹Columbia University Medical Center, New York, NY, ²Leeds Institute of Rheumatic and Musculoskeletal Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom, Leeds, England, United Kingdom, ³F. Hoffmann-La Roche Ltd, Basel, Switzerland, Basel, Switzerland, ⁴Hoffmann-La Roche Ltd, Mississauga, Canada, ⁵Genentech, Inc,, San Francisco, CA, ⁶Genentech, Inc,, San Francisco, ⁷UCSF, Corte Madera, CA
Background/Purpose: British Isles Lupus Assessment Group (BILAG)-based Composite Lupus Assessment (BICLA) and Systemic Lupus Erythematosus Responder Index 4 (SRI4) responses are the most common primary…
Abstract Number: 1150 • ACR Convergence 2024
Increased ISG15 Expression in Peripheral Blood from Patients with Positive Dermatomyositis Related Specific Autoantibodies
Sylvia Raftopoulou¹, Nikolaos Michalakeas¹, Maria Gerochristou², Nikolaos Marketos¹, Charalampos Skarlis¹ and Clio Mavragani³, ¹Molecular and Applied Physiology Unit, Department of Physiology, School of Medicine, National and Kapodistrian University of Athens., Athens, Greece, ²Andreas Syggros Hospital, National and Kapodistrian University of Athens, Athens, Greece, ³Department of Physiology and Pathophysiology, School of Medicine, National and Kapodistrian University of Athens., Athens, Greece
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are characterised by muscle inflammation (myositis) and weakness, impacting various organ systems. Clinical subtypes include dermatomyositis (DM), antisynthetase syndrome (ASyS),…
Abstract Number: 1562 • ACR Convergence 2024
Autoantibody Associations with Disease Manifestations in Patients with Early Diffuse Cutaneous Systemic Sclerosis: The Prospective Registry of Early Systemic Sclerosis
Aradhna Agarwal¹, Dahlia Hassan², Suiyuan Huang³, Flavia Castelino⁴, Shervin Assassi⁵, Robyn Domsic⁶, Tracy Frech⁷, Jessica Gordon⁸, Faye Hant⁹, Monique Hinchcliff¹⁰, Ami Shah¹¹, Victoria Shanmugam¹², Virginia Steen¹³, Dinesh Khanna³ and Elana Bernstein¹⁴, ¹Columbia University, New York, NY, ²Hospital for Special Surgery, New York, NY, ³University of Michigan, Ann Arbor, MI, ⁴Massachusetts General Hospital, Boston, MA, ⁵UTHealth Houston Division of Rheumatology, Houston, TX, ⁶Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, ⁷Vanderbilt University Medical Center, Nashville, TN, ⁸Division of Rheumatology, Weill Cornell Medical College, New York, NY, ⁹Medical University of South Carolina, Charleston, SC, ¹⁰Yale School of Medicine, Westport, CT, ¹¹Division of Rheumatology, Johns Hopkins University, Ellicott City, MD, ¹²NIH Office of Autoimmune Disease Research in the Office of Research on Women's Health, National Institutes of Health, Bethesda, MD, Bethesda, MD, ¹³Georgetown University School of Medicine, Washington, DC, ¹⁴Columbia University Irving Medical Center, New York, NY
Background/Purpose: Several autoantibodies have been linked to various disease manifestations of systemic sclerosis (SSc). Anti-RNA polymerase 3 (ARA) and anti-topoisomerase-I (ATA) are both associated with…
Abstract Number: 1792 • ACR Convergence 2024
CD14+ Monocytes Demonstrate Subclinical Erythrocyte Uptake in Childhood Onset Systemic Lupus Erythematosus
Lauren Robinson¹, Preetha Balasubramanian², Zurong Wan², Juan Rodriguez Alcazar², Marina Lima Silva Santos², Lynnette Walters³, Jeanine Baisch², Karen Onel⁴, Tracey Wright⁵, Virginia Pascual⁶ and Simone Caielli², ¹Hospital for Special Surgery, New York, NY, ²Weill Cornell Medicine, New York, NY, ³Scottish Rite Hospital for Children, Allen, TX, ⁴HSS, New York, NY, ⁵UT Southwestern, Plano, TX, ⁶Weill Cornell Medical College, New York, NY
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a disease characterized by the presence of auto-antibodies, immune complex deposition, and a robust type I interferon (IFN) signature.…
Abstract Number: 2294 • ACR Convergence 2024
Pharmacodynamic Effects of Nipocalimab on Disease Biomarkers in Patients with Moderate-to-Severe Active Sjögren’s Disease: Results from a Multicenter, Randomized, Double-blinded, Placebo-controlled Phase 2 Study
Kathy Sivils¹, Steven Leonardo², He Li³, Keying Ma⁴, Matthew J. Loza⁵, Jonathan J. Hubbard⁴, Kim Campbell⁴ and Sheng Gao⁴, ¹Johnson & Johnson Innovative Medicine, Edmond, OK, ²Janssen Research & Development, LLC, a Johnson & Johnson Company, Cambridge, MA, ³Janssen Research & Development, LLC, Therapeutics Discovery, Spring House, PA, ⁴Janssen Research & Development, LLC, a Johnson & Johnson Company, Spring House, PA, ⁵Janssen Research & Development, LLC, a Johnson & Johnson company, Spring House, PA, USA, Spring House, PA
Background/Purpose: Nipocalimab is a fully human, immunoglobulin G (IgG) 1 monoclonal antibody that selectively binds to the IgG-binding site of the neonatal crystallizable fragment receptor…
Abstract Number: 2669 • ACR Convergence 2024
Dysferlin Autoantibodies Compromise Sarcolemmal Repair Capacity and Contribute to the Pathogenesis of Idiopathic Immune Myopathies
Hannah Bulgart¹, Kassidy Banford², Shane Bruckner³, Kevin McElhanon², Nicholas Young¹, Brian Paleo², Eric Beck², Rohit Aggarwal⁴, Chester Oddis⁵, Braden Zeno⁶, Wael Jarjour⁷ and Noah Weisleder³, ¹The Ohio State University Wexner Medical Center, Columbus, OH, ²The Ohio State University, Columbus, ³Ohio State University, Columbus, OH, ⁴Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, USA, Pittsburgh, PA, ⁵Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, ⁶Ohio State University, upper arlington, OH, ⁷The Ohio State University, Columbus, OH
Background/Purpose: Idiopathic immune myopathies (IIMs) are a group of autoimmune diseases that produce chronic inflammation and degeneration of skeletal muscle structure and function. One process…
Abstract Number: 0186 • ACR Convergence 2024
Development of a Novel Dried Blood Spot Method to Improve Capacity for ANA Testing in Lower-Resource Settings
Ekemini Ogbu¹, Stela Florea², Donna Diorio², Somak Roy², Dhriti Sharma², Michael Henrickson², Patricia Vega-Fernandez², Angela Migowa³, Sarangarajan Ranganathan² and hermine brunner¹, ¹Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, ²Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ³AGA KHAN UNIVERSITY, Nairobi, Kenya
Background/Purpose: Timely diagnosis of children and young adults with rheumatologic disorders remains a global challenge especially in lower-resource settings. There is limited access to diagnostic…
Abstract Number: 0642 • ACR Convergence 2024
Anti-Myxovirus Resistance Protein 1: A Novel Biomarker for Autoimmune Myositis and Interstitial Lung Disease in Systemic Lupus Erythematosus
Eugene Krustev¹, Marvin Fritzler², Sasha Bernatsky³, Yvan St-Pierre⁴, Evelyne Vinet⁵, Christian Pineau⁶, Arielle Mendel⁷, Faras Kalache⁸, Louis-Pierre Grenier⁸, Thaisa Cotton⁸, Omid Zahedi⁹ and May Choi¹, ¹University of Calgary, Calgary, AB, Canada, ²Mitogen Diagnostics Corp, Calgary, AB, Canada, ³Research Institute of the McGill University Health Centre, Montreal, QC, Canada, ⁴McGill University Health Center, Montreal, QC, Canada, ⁵McGill University Health Centre, Montreal, QC, Canada, ⁶McGill University, Montreal, QC, Canada, ⁷Division of Rheumatology, Department of Medicine, McGill University and Centre for Outcomes Research and Evaluation, McGill University Health Centre, Montreal, QC, Canada, ⁸Division of Rheumatology, Department of Medicine, McGill University, Montreal, QC, Canada, ⁹Division of Rheumatology, Department of Medicine, University of Alberta Hospital, Edmonton, AB, Canada
Background/Purpose: Although autoimmune myositis (AIM) and interstitial lung disease (ILD) are uncommon in systemic lupus erythematosus (SLE), they are associated with worse outcomes. Myxovirus Resistance…
Abstract Number: 1153 • ACR Convergence 2024
Increased Prevalence of Myositis Specific and Associated Autoantibodies in Patients with Interstitial Lung Disease of Unknown Etiology
Vasiliki Koulouri¹, Ilektra Voulgareli², Sofia Flouda³, Nikoletta Galanopoulou⁴, Nikolaos Marketos⁵, Charalampos Skarlis⁵, Sylvia Raftopoulou⁵, Kyriaki Tavernaraki⁶, Alexia Chronaiou², Georgios Tsoukalas², Nikolaos Zias⁷, Dimitrios Boumpas⁸ and Clio Mavragani⁹, ¹Department of Physiology and Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, Greece, Athens, Greece, ²4th Respiratory Medicine Department, Sotiria General and Chest Diseases Hospital, Athens, Greece, Athens, Greece, ³4th Department of Internal Medicine, "Attikon" University Hospital, Athens, Greece, ⁴10th Respiratory Medicine Department, Sotiria General and Chest Diseases Hospital, Athens, Greece, ⁵Molecular and Applied Physiology Unit, Department of Physiology, School of Medicine, National and Kapodistrian University of Athens., Athens, Greece, ⁶Imaging and Interventional Radiology, Sotiria General and Chest Diseases Hospital, Athens, Greece, Athens, Greece, ⁷Respiratory Medicine Department, Athens Naval Hospital, Athens, Greece, ⁸4th Department of Internal Medicine, "Attikon" University Hospital, Athens, Greece, Athens, Greece, ⁹Department of Physiology and Pathophysiology, School of Medicine, National and Kapodistrian University of Athens., Athens, Greece
Background/Purpose: In recent years, connective tissue diseases (CTDs) have been increasingly recognized as a significant underlying pathology of interstitial lung diseases (ILDs). Amongst CTDs, idiopathic…
Abstract Number: 1575 • ACR Convergence 2024
Anti-U1RNP Antibodies Are Associated with a Distinct Clinical Phenotype and a Worse Survival in Patients with Systemic Sclerosis
Kevin Chevalier¹, Guillaume Chassagnon², Sarah LOUIS-LEONARD³, Pascal cohen⁴, bertrand Dunogue⁵, Alexis Régent⁶, Benjamin Thoreau⁵, Luc Mouthon⁵ and Benjamin Chaigne⁷, ¹Paris Cardiovascular Research Center, INSERM U970, Paris, France, ²Department of Radiology, Hôpital Cochin, AP-HP. Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014 Paris, France, Paris, France, ³Sorbonne Université, INSERM, Department of Neurormyologie and Neuropathology, AP-HP, Hôpital Pitié-Salpêtrière, Paris, France, Paris, France, ⁴National Referral Center For Rare Systemic Autoimmune Diseases, Paris, Ile-de-France, France, ⁵Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes et Autoinflammatoires Rares d'Ile de France de l’Est et de l’Ouest, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France, ⁶National Referral Center For Rare Systemic Autoimmune Diseases, Paris, France, ⁷Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes et Autoinflammatoires Rares d'Ile de France de l’Est et de l’Ouest, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, Ile-de-France, France
Background/Purpose: Systemic sclerosis (SSc) is a rare systemic disease within the connective tissue disease (CTD) spectrum. It is characterized by microcirculatory abnormalities, skin and internal…

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