Abstracts tagged "Autoantibody(ies)"

Abstract Number: 2401 • ACR Convergence 2024
A Novel Modeling Approach to Elucidate the Role of Autoantibodies in Complement Activation in SLE
David Pisetsky¹, Yuankang Zhao², Matthew Engelhard³, Amanda Eudy⁴, Philip Tedeschi⁵, Alex Verdone⁵, Megan Clowse⁶, Lisa Criscione-Schreiber², Jayanth Doss³, Mithu Maheswaranathan², Rebecca Sadun³, Kai Sun³ and Jennifer Rogers², ¹Duke University Medical Center, Durham, NC, ²Duke University, Durham, ³Duke University, Durham, NC, ⁴Duke University, Raleigh, NC, ⁵Immunovant, Inc, New York, NY, ⁶Duke University, Chapel Hill, NC
Background/Purpose: In SLE, ANAs can promote pathogenesis by forming immune complexes (ICs) that activate complement. While antibodies to DNA (anti-DNA) are known to be associated…
Abstract Number: 0049 • ACR Convergence 2024
Inflammatory Priming by Anti-MAA Antibodies in Rheumatoid Arthritis
Marcelo Afonso¹, Jitong Sun¹, Koji Sakuraba¹, Alexandra Circiumaru², Denis Lagutkin¹, Masa Filipovic¹, Anca Catrina¹, Caroline Grönwall¹, Aase Hensvold¹ and Bence Réthi¹, ¹Karolinska Institutet, Stockholm, Sweden, ²Division for Rheumatology, Karolinska Institutet; Center for Rheumatology, Academic Specialist Center, Stockholm region, Stockholm, Sweden
Background/Purpose: We have previously shown that autoantibodies targeting malondialdehyde-acetaldehyde protein adducts (anti-MAA) in rheumatoid arthritis (RA) patients boosted osteoclast differentiation and induced bone erosion in mice…
Abstract Number: 0344 • ACR Convergence 2024
Characteristics of Patients with Antisynthetase Antibodies
Danny Kasto¹, Michael McLucas², Anne-Marie Aubin², Armando Faigl² and Gabor Major¹, ¹Dep of Rheumatology Royal Newcastle Centre / John Hunter Hospital, Rankin Park, New South Wales, Australia, ²Dep of Rheumatology Royal Newcastle Centre / John Hunter Hospital, Rankin Park, Australia
Background/Purpose: Aminoacyl transfer RNA synthetase antibodies (ASAbs) are associated with a range of clinical manifestations, including severe lung and muscle disease and are postulated to…
Abstract Number: 0838 • ACR Convergence 2024
The Mechanistic Impact of IgA anti-beta-2 Glycoprotein I on Accelerated Atherosclerosis in Primary APS
Kavya Sugur¹, Emily Chong¹, Srilakshmi Yalavarthi², Katarina Kmetova³, Lyndsay Kluge¹, Wenying Liang², Cyrus Sarosh⁴, NaveenKumar Somanathapura K², Jacqueline Madison², Ajay Tambralli², Jason Knight² and Yu Zuo², ¹Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, ²University of Michigan, Ann Arbor, MI, ³Division of Rheumatology, University of Michigan, Ann Arbor, Michigan, USA, Ann Arbor, MI, ⁴University of Michigan, Temperance, MI
Background/Purpose: Antiphospholipid syndrome (APS) is an acquired thrombo-inflammatory disease characterized by persistent antiphospholipid antibodies (aPL). APS patients experience significant morbidity and mortality, much of which…
Abstract Number: 1427 • ACR Convergence 2024
Observed and Simulated Pharmacokinetics and Pharmacodynamics of Nipocalimab, a Fully Human FcRn Blocking Monoclonal Antibody, in Adults with Sjögren’s Disease: Results from a Phase 2, Multicenter, Randomized, Placebo-controlled, Double-blind Study
Sophia G. Liva¹, fudan Zheng¹, Jocelyn H. Leu², Kathy Sivils³, Keying Ma¹, He Li⁴, Steven Leonardo⁵, Kim Lo¹, Jada Idokogi¹, Kim Campbell¹ and Jonathan J. Hubbard¹, ¹Janssen Research & Development, LLC, a Johnson & Johnson Company, Spring House, PA, ²Janssen Research & Development, LLC, a Johnson & Johnson company, Spring House, PA, PA, ³Johnson & Johnson Innovative Medicine, Edmond, OK, ⁴Janssen Research & Development, LLC, Therapeutics Discovery, Spring House, PA, ⁵Janssen Research & Development, LLC, a Johnson & Johnson Company, Cambridge, MA
Background/Purpose: Sjögren’s disease (SjD) is a chronic, progressive autoimmune disease characterized by aberrant B lymphocyte activity, elevated IgG production, and the presence of IgG autoantibodies…
Abstract Number: 1652 • ACR Convergence 2024
Extracellular Vesicles from Lymphocyte B and Neutrophil Presents Ro52, Ro60 and La Autoantigens in Patient Suffering from Sjögren Syndrome
Lily BRUYERE¹, Anne-Claire DUCHEZ², Martin KILLIAN³ and Stéphane PAUL⁴, ¹université jean-monnet, saint-etienne, ²EFS, saint-etienne, ³chu Saint-Etienne, saint-etienne, ⁴CIRI, Saint Etienne, France
Background/Purpose: Extracellular Vesicles (EVs) are double lipid bilayer-enclosed membranous vesicles, produced and discharged from almost all cells. EVs are known for inter-cellular communication by releasing…
Abstract Number: 2058 • ACR Convergence 2024
Association of Anti-Synthetase Antibody Subtypes with Radiographic Progression of Interstitial Lung Disease in Anti-Synthetase Syndrome: An Analysis of the CLASS Project Database
Daphne Rivero Gallegos¹, Francisca Bozan², Sangmee Bae³, Giovanni Zanframundo⁴, Sara Faghihi-Kashani⁵, Iazsmin Bauer Ventura⁶, Eduardo Dourado⁷, Gianluca sambataro⁸, Akira Yoshida⁹, Tamera J Corte¹⁰, Francesco Bonella¹¹, Tracy J Doyle¹², david fiorentino¹³, Miguel Angel Gonzalez-Gay¹⁴, marie Hudson¹⁵, Masataka Kuwana¹⁶, Antonella Notarnicola¹⁷, Andrew Mammen¹⁸, Neil McHugh¹⁹, Frederick Miller²⁰, Carlomaurizio Montecucco²¹, Chester Oddis²², Jorge Rojas-Serrano²³, Jens Schmidt²⁴, Carlo A. Scire²⁵, Albert Selva-O’Callaghan²⁶, Victoria Werth²⁷, Rohit Aggarwal²⁸ and Lorenzo Cavagna²⁹, and CLASS project participating investigators, ¹INER, Ciudad de México, Mexico State, Mexico, ²Hospital Clinico Universidad de Chile, Santiago, Chile, ³UCLA, Los Angeles, CA, ⁴Università di Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy, Milano, Italy, ⁵Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, San Francisco, CA, ⁶University of Chicago, Chicago, IL, ⁷Unidade Local de Saúde da Região de Aveiro, Aveiro, Portugal, ⁸University of Catania, Catania, Italy, ⁹Nippon Medical School Graduate School of Medicine, Bunkyo-ku, Tokyo, Japan, ¹⁰Royal Prince Alfred Hospital, University of Sydney, Sydney, Australia, ¹¹Center for interstitial and rare lung diseases, Ruhrlandklinik, University of Duisburg-Essen, Essen, Germany, ¹²Brigham and Women's Hospital, West Roxbury, MA, ¹³Department of Dermatology, Stanford University School of Medicine, Stanford, CA, Palo Alto, CA, ¹⁴University of Cantabria, Fundación Jimenez Díaz, Madrid, Madrid, Spain, ¹⁵McGill University, Montreal, QC, Canada, ¹⁶Department of Allergy and Rheumatology, Nippon Medical School, Tokyo, Japan, Tokyo, Japan, ¹⁷Karolinska University Hospital and Karolinska Institutet, Stockholm, Stockholms Lan, Sweden, ¹⁸NIH, Bethesda, MD, ¹⁹University of Bath, Bath, United Kingdom, ²⁰NIH, NIEHS, Chapel Hill, NC, ²¹IRCCS policlinico S. Matteo foundation, University of Pavia, Pavia, Italy, ²²Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, ²³National Institute of Respiratory Diseases, Ismael Cosío Villegas, Mexico City, Mexico, ²⁴University Medical Center Goettingen, Göttingen, Germany, ²⁵University of Milano Bicocca, Milan, Italy, ²⁶Systemic Autoimmune Disease Unit, Vall d’Hebron Institute of Research, Barcelona, Spain, ²⁷University of Pennsylvania, Wynnewood, PA, ²⁸Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, USA, Pittsburgh, PA, ²⁹University of Pavia and Fondazione IRCCS Policlinico San Matteo Hospital of Pavia, Pavia, Pavia, Italy
Background/Purpose: In anti-synthetase syndrome (ASSD), clinical presentations vary from isolated interstitial lung disease (ILD) to systemic multi-organ manifestations. Several studies emphasize the crucial role of…
Abstract Number: 2443 • ACR Convergence 2024
The Clinical Phenotype of Anti-Th/To+ Patients in Systemic Sclerosis: A Case-control Study Within the European Scleroderma Trials and Research (EUSTAR) Cohort
Liala Moschetti¹, Eleonora Pedretti², Francesco Bonomi³, María Martín López⁴, Fabio Cacciapaglia⁵, cristiana sieiro santos⁶, Gianluca Moroncini⁷, Yannick Allanore⁸, Joana Caetano⁹, Brigitte Granel¹⁰, Laura Groseanu¹¹, Maria De Santis¹², Masataka Kuwana¹³, Veronica Codullo¹⁴, Mariana Pereira Silva¹⁵, Pietro Bearzi¹⁶, Laura Belloli¹⁷, Alida Taberner-Cortés¹⁸, Cristina Maglio¹⁹, Francesco Del Galdo²⁰, Corrado Campochiaro²¹, Marie-Elise Truchetet²², Giovanna Cuomo²³, Magda Parvu²⁴, Florenzo Iannone²⁵, Patricia Carreira²⁶, Serena Guiducci²⁷, Franco Franceschini¹, Paolo Airò¹ and Maria-Grazia Lazzaroni¹, ¹Scleroderma Unit, Rheumatology and Clinical Immunology Unit, ERN ReCONNET, ASST Spedali Civili, Brescia, Italy, Brescia, Italy, ²Scleroderma Unit, Rheumatology Unit, ERN ReCONNET, ASST Spedali Civili and University of Brescia; Italy, Brescia, Italy, ³Division of Rheumatology, Scleroderma Unit, University of Florence, AOU Careggi Firenze; Italy, Firenze, Italy, ⁴General University Hospital of Ciudad Real, Ciudad de México, Spain, ⁵Rheumatology Unit � DiMePRe-J, University and AOU Policlinico of Bari, Italy, Bari, Italy, ⁶Rheumatology Department, Complejo Asistencial Universitario de León, León, Spain, Leon, Spain, ⁷Marche Polytechnic University, Ancona, Italy, ⁸Rheumatology department, Université Paris Cité, Cochin Hospital of Paris; France, Paris, France, ⁹Systemic Autoimmune Diseases Unit, Fernando Fonseca Hospital, Amadora; Portugal, Amadora, Portugal, ¹⁰Service de Médecine Interne Hôpital Nord de Marseille; France, Marseille, France, ¹¹Spitalul Sfanta Maria, Bucharest, Romania, ¹²Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital and Biomedical Sciences, Hu-manitas University, Milan; Italy, Milan, Italy, ¹³Department of Allergy and Rheumatology, Nippon Medical School, Tokyo, Japan, Tokyo, Japan, ¹⁴Unit of Rheumatology, San Matteo Hospital, Pavia, Italy, ¹⁵Rheumatology Department, Unidade Local de Saúde Santa Maria, Centro Académico de Medicina de Lisboa; Portugal, Lisboa, Portugal, ¹⁶Immunorheumatology Unit, Università Campus Bio-Medico University of Roma; Italy, Roma, Italy, ¹⁷Niguarda Hospital, Milan, Milan, Italy, ¹⁸Hospital Universitario Doctor Peset, Valencia, Spain, ¹⁹University of Gothenburg, Gothenburg, Sweden, ²⁰University of Leeds, Leeds, United Kingdom, ²¹IRCCS San Raffaele Hospital. Vita-Salute San Raffaele University, Milan, Milan, Italy, ²²Bordeaux University Hospital, Bordeaux, France, ²³Università degli studi della Campania Luigi Vanvitelli, Napoli, Italy, ²⁴Colentina Clinical Hospital, Rheumatology Department, Bucharest; Romania, Bucharest, Romania, ²⁵Rheumatology Unit- University of Bari "Aldo Moro", IT, Bari, Italy, ²⁶Hospital Universitario 12 de Octubre, Madrid, Madrid, Spain, ²⁷Division of Rheumatology, Scleroderma Unit, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
Background/Purpose: To evaluate clinical associations of anti-Th/To antibodies in SSc patients in a multicentre international cohort, focusing on interstitial lung disease (ILD), pulmonary arterial hypertension…
Abstract Number: 0064 • ACR Convergence 2024
Anti-Citrullinated Protein Antibodies Arise During Affinity Maturation of Germline-Encoded Antibodies to Carbamylated Proteins in Rheumatoid Arthritis
Marta Escarra-Senmarti¹, Michael Chungyoun², Dylan Ferris¹, Jeffrey Gray² and Felipe Andrade³, ¹The Johns Hopkins University School of Medicine, Baltimore, MD, ²The Johns Hopkins Whiting School of Engineering, Baltimore, MD, ³The Johns Hopkins University School of Medicine, Timonium, MD
Background/Purpose: The production of antibodies to modified self-antigens is a hallmark in rheumatoid arthritis (RA). Antibodies to citrullinated (ACPAs) and carbamylated proteins (CarP) are of…
Abstract Number: 0346 • ACR Convergence 2024
Clonally Expanded and Total B Cells in Patients with Idiopathic Inflammatory Myopathies Show Skewed B Cell Subset Distribution and Reduced Somatic Hypermutation Relative to Healthy Controls
Amelia Sawyers¹, Leslie Crofford², Erin Wilfong³ and Rachel Bonami³, ¹Vanderbilt University School of Medicine, Nashville, TN, ²Vanderbilt University Medical Center, Melbourne, AR, ³Vanderbilt University Medical Center, Nashville, TN
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a collection of rare, systemic rheumatic diseases. A role for B cells in IIM is indicated by the success…
Abstract Number: 0839 • ACR Convergence 2024
Comprehensive Single-cell Analysis Reveals Interferon Pathway Activation and Aberrant B Cell Dynamics in APS Autoimmunity
Haoyu Pan, Xiaohan Wei, Jinyi Qian, Shuyi Yu, Zhixia Yang, Zetao Ding, Chengde Yang and Hui Shi, Department of Rheumatology and lmmunology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China, Shanghai, China (People's Republic)
Background/Purpose: Antiphospholipid syndrome (APS) is a systemic autoimmune disease characterized with the presence of pathogenic antiphospholipid antibodies (aPL) by autoreactive B cells. However, it remains…
Abstract Number: 1488 • ACR Convergence 2024
Clinical Utility and Performance of Anti-C1q Antibodies for Systemic Lupus Erythematosus: Comparative Analysis of Three Different Assays
Mariana Gonzalez-Trevino¹, MeLea Hetrick¹, Alain Sanchez-Rodriguez², Ali Duarte-Garcia¹ and Anne Tebo³, ¹Mayo Clinic, Rochester, MN, ²Mayo Clinic College of Medicine and Science, Rochester, MN, ³Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
Background/Purpose: SLE is an autoimmune disorder characterized by autoantibody-mediated tissue damage. Antibodies against C1q (anti-C1q) can identify patients with LN and rising titers predict renal…
Abstract Number: 1684 • ACR Convergence 2024
Autoantibodies to Transcription Factor a Mitochondria Are Associated with Damage Accrual, Malignancy Risk and Mortality in SLE
Eduardo Gomez¹, Daniel Goldman², Merlin Paz³, Michelle Petri² and Felipe Andrade⁴, ¹The Johns Hopkins University, Baltimore, MD, ²Johns Hopkins University School of Medicine, Timonium, MD, ³Johns Hopkins Medicine, Baltimore, MD, ⁴The Johns Hopkins University School of Medicine, Timonium, MD
Background/Purpose: We recently identified autoantibodies in SLE that target transcription factor A mitochondrial (TFAM), a critical protein in mitochondrial DNA transcription and packaging1. These autoantibodies…
Abstract Number: 2059 • ACR Convergence 2024
The Rs35705950 Promoter Variant of Muc5b Is Associated with Usual Interstitial Pneumonia in Antisynthetase Syndrome
Daphne Rivero Gallegos¹, Mayra Mejía², Karol J. Nava-Quiroz², Heidegger N. Mateos-Toledo³, Héctor I. Rocha-González⁴, Juan C. Huerta-Cruz³, Espiridion Ramos-Martínez⁵, Gloria Pérez-Rubio³, Ingrid Fricke-Galindo³, Jorge Rojas-Serrano⁶ and Ramcés Falfán-Valencia³, ¹INER, Ciudad de México, Mexico State, Mexico, ²INER, Mexico, Distrito Federal, Mexico, ³INER, Mexico City, Distrito Federal, Mexico, ⁴Instituto Politècnico Nacional, Mexico City, Distrito Federal, Mexico, ⁵UNAM, Ciudad de Mexico, Distrito Federal, Mexico, ⁶National Institute of Respiratory Diseases, Ismael Cosío Villegas, Mexico City, Mexico
Background/Purpose: Rs35705950 variant in the MUC5B gene promoter is a critical genetic risk factor in idiopathic pulmonary fibrosis (IPF). It has been associated with usual…
Abstract Number: 2447 • ACR Convergence 2024
Features of Anti-Fibrillarin Positive Systemic Sclerosis Patients and Ethnic Differences: A European Multicenter Cohort
Roberto D'Alessandro¹, Stefano Rodolfi², Alix Calot¹, Louis Bébéar³, Corrado Campochiaro⁴, Veronica Codullo⁵, Francesco Del Galdo⁶, Ivan Castellvi Barranco⁷, Elisabetta Zanatta⁸, Silvia Bellando Randone⁹, Goncalo Boleto¹⁰, Loic Raffray¹¹, Emmanuel Chatelus¹², Patrice Cacoub¹³, Alexandre Le Joncour¹³, Paolo Airò¹⁴, cristiana sieiro santos¹⁵, Alain Lescoat¹⁶, Jérôme Avouac¹⁷, Christopher Denton¹⁸ and Yannick Allanore¹⁹, ¹Rheumatology Department, Cochin Hospital, Université Paris Cité, APHP, Paris, France, Paris, France, ²Division of Medicine, Centre for Rheumatology and Connective Tissue Diseases, University College London, London, UK, London, United Kingdom, ³Department of Rheumatology, Centre Hospitalier Universitaire de Bordeaux Groupe Hospitalier Pellegrin, Bordeaux, France., Bordeaux, France, ⁴IRCCS San Raffaele Hospital. Vita-Salute San Raffaele University, Milan, Milan, Italy, ⁵Division of Rheumatology - Policlinico San Matteo, Pavia, Italy, Pavia, Lombardia, Italy, ⁶University of Leeds, Leeds, United Kingdom, ⁷Hospital de la Santa Creu i Sant Pau, Barcelona, Spain, ⁸Unit of Rheumatology, Padova University, Padova, Italy, ⁹Department of Experimental and Clinical Medicine University of Florence Division of Rheumatology Scleroderma Unit, Careggi Hospital Florence, Italy, Florence, Toscana, Italy, ¹⁰Rheumatology Department, Unidade Local de Saúde Santa Maria, Centro Académico de Medicina de Lisboa, Lisboa, Portugal., Lisbon, Portugal, ¹¹CHU La Réunion - Competence center for autoimmune diseases, Internal Medicine, Saint-Denis, Reunion, ¹²Rheumatology department strasbourg, Strasbourg, France, ¹³Department of Internal Medicine and Clinical Immunology France, Centre national de référence maladies Autoimmunes Systémiques rares, Centre national de référence maladies Autoinflammatoires et Amylose, and Inflammation-Immunopathology-Biotherapy Department (DMU i3), Sorbonne Université, AP-HP, Hôpital Pitié Salpetrière, 75013 Paris, France, Paris, France, ¹⁴Scleroderma Unit, Rheumatology and Clinical Immunology Unit, ERN ReCONNET, ASST Spedali Civili, Brescia, Italy, Brescia, Italy, ¹⁵Rheumatology Department, Complejo Asistencial Universitario de León, León, Spain, Leon, Spain, ¹⁶Department of Internal Medicine and Clinical Immunology, Rennes University Hospital, Rennes, France, rennes, France, ¹⁷Rheumatology A Department, Hôpital Cochin, AP-HP Centre - Université Paris Cité, Paris, France, ¹⁸University College London, Northwood, United Kingdom, ¹⁹Rheumatology department, Université Paris Cité, Cochin Hospital of Paris; France, Paris, France
Background/Purpose: Anti-fibrillarin (AFA) auto-antibodies are rarely found in Systemic Sclerosis (SSc). Beyond the ethnic association with a higher prevalence in patients of Black ethnicity, the…

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