Abstracts tagged "Autoantibody(ies)"

Abstract Number: 0910 • ACR Convergence 2025
Development of Four Distinct Human IgG4-Producing Mouse Models Recapitulating IgG4-Related Disease
MIN GANG KIM¹, JINA YEO², HEA RIM KANG³, JAE HYUN MOON³, Seon Uk Kim⁴, SeoYoon Ban⁵, MI HYEON KIM⁶ and Eun Young Lee⁷, ¹Seoul National University College of Medicine, Seoul, Republic of Korea, ²Division of Rheumatology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea, ³Seoul National University College of Medicine, Jongno-gu, Seoul, Republic of Korea, ⁴Seoul National University, Jongno-gu, Seoul, Republic of Korea, ⁵Department of Cancer biology, Graduate School of College of Medicine, Seoul National University, Korea, Seoul, Republic of Korea, ⁶Hallym university dongtan sacred heart hospital, Seocho-gu, Seoul, Republic of Korea, ⁷Seoul National University College of Medicine, Seoul, South Korea
Background/Purpose: IgG4-related disease (IgG4RD) is an immune-mediated fibroinflammatory condition characterized by multi-organ involvement, elevated serum IgG4, and IgG4-positive plasma cell infiltrates that form tumor-like lesions…
Abstract Number: 1390 • ACR Convergence 2025
Cystic Lung Disease and Autoantibodies in Lymphocytic Interstitial Pneumonia: Exploring the Impact of Sjögren’s Syndrome
KARLA CHACON¹, ALBERTO ALEJANDRO MARQUEZ-SANCHEZ¹, Jorge Rojas-Serrano² and MAYRA MEJÍA¹, ¹Instituto Nacional de Enfermedades Respiratorias, CIUDAD DE MEXICO, Distrito Federal, Mexico, ²Instituto Nacional de Enfermedades Respiratorias, Mexico City, Mexico
Background/Purpose: Lymphocytic interstitial pneumonia (LIP) is a rare interstitial lung disease, most commonly associated with Sjögren’s syndrome, but it may also occur in the context…
Abstract Number: 1865 • ACR Convergence 2025
Shared and unique molecular signatures across different autoantibody groups in systemic sclerosis: a multi-omics analysis
Hanlin Yin¹, Wanyi Lin², Zhangyi zhao¹, Chenhan Jia¹ and Liangjing Lu¹, ¹Shanghai Jiao Tong University School of Medicine Affiliated Renji Hospital, Shanghai, Shanghai, China (People's Republic), ²Shanghai Jiao Tong University School of Medicine Affiliated Renji Hospital, Shanghai, China (People's Republic)
Background/Purpose: Antinuclear antibodies (ANA) are detected in over 95% of systemic sclerosis (SSc) patients. Compared to cutaneous subtype classification, autoantibody-based stratification more accurately predicts survival,…
Abstract Number: 2396 • ACR Convergence 2025
A Machine Learning Algorithm Based on a 15-Autoantibody Profile by a Novel Fully Automated Multiplexed Microarray Immunoassay for the Diagnosis of Autoimmune Connective Tissue Diseases
Gerber Gomez¹, Yipeng Cheng², Kristiana Nita², Michael Hausmann³, Christian Fischer¹ and Yasemin Ataman-Önal³, ¹Scientific & Medical Affairs, AliveDx Suisse SA, Eysins, Switzerland, ²AliveDx, Edinburgh, United Kingdom, ³AliveDx Suisse SA, Eysins, Switzerland
Background/Purpose: Detection of relevant autoantibodies is key in the identification of autoimmune connective tissue diseases (CTD). The evaluation of multiple autoantibodies for extended serological profiling…
Abstract Number: 2599 • ACR Convergence 2025
Identification of a New Pathogenic Axis in Antiphospholipid Syndrome Linking Antiphospholipid Antibodies, Liver Function, and Circulating Proatherogenic Metabolites
Beatriz Vellón-García¹, Sagrario Corrales-Díaz-Flores², MARIA ANGELES AGUIRRE ZAMORANO³, Ismael Sanchez-Pareja³, Laura muñoz-Barrera³, Tomás Cerdó³, Pedro Seguí-Azpilcueta⁴, Christian Merlo², Maria del carmen abalos-aguilera², Nuria Barbarroja⁵, Rafaela Ortega-Castro⁶, José-Antonio Gonzalez-Reyes⁷, Alejandro Escudero-contreras², Chary López pedrera⁸, Jose manuel Villalba⁹ and Carlos Pérez Sánchez¹⁰, ¹Rheumatology Service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/University of Cordoba/ Reina Sofia University Hospital, Córdoba, Spain/Department of Cell Biology, Physiology and Immunology, Maimonides Institute of Biomedical Research of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Córdoba, Córdoba, Spain, Cordoba, Spain, ²Rheumatology Service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/University of Cordoba/ Reina Sofia University Hospital, Córdoba, Spain, Cordoba, Spain, ³Rheumatology service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ Reina Sofia University Hospital/ University of Cordoba, Spain, Córdoba, Spain, ⁴Radiology Service, Reina Sofia Hospital/Maimonides Institute for Research in Biomedicine of Cordoba/University of Cordoba, Spain, Córdoba, United Kingdom, ⁵Rheumatology service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ Reina Sofia University Hospital/ University of Cordoba, Spain/CobiomicBioscience S.l, Cordoba, Spain, Cordoba, Spain, ⁶Rheumatology service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ Reina Sofia University Hospital/ University of Cordoba, Spain, Cordoba, Andalucia, Spain, ⁷Department of Cell Biology, Immunology and Physiology, University of Cordoba (UCO), Agrifood Campus of International Excellence, (ceiA³)., Cordoba, Spain, ⁸Rheumatology service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ Reina Sofia University Hospital/ University of Cordoba, Spain, Cordoba, Spain, ⁹Department of Cell Biology, Physiology and Immunology, Maimonides Institute of Biomedical Research of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain, Cordoba, Spain, ¹⁰Rheumatology service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ Reina Sofia University Hospital/ University of Cordoba, Spain/ CobiomicBioscience S.l, Cordoba, Spain, Cordoba, Spain
Background/Purpose: This study aims to:1- Characterize the circulating metabolomic signature in APS patients; 2- Investigate the role of hepatic involvement in the pathophysiology of APS;…
Abstract Number: 0278 • ACR Convergence 2025
Classic and Clinically Amyopathic Dermatomyositis: Autoantibody Positivity
Xiwei Yang¹, Shae Chambers², Aretha On¹, Hammad Ali², Touraj Khosravi³, Lais Lopes Almeida Gomes², Rui Feng⁴ and Victoria Werth⁵, ¹Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, ²University of Pennsylvania, Philadelphia, PA, ³Department of Dermatology, Perelman Shool of Medicine, University of Pennsylvania, Philadelphia, PA, ⁴Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, Pennsylvania, Philadelphia, PA, ⁵University of Pennsylvania, Wynnewood, PA
Background/Purpose: Dermatomyositis (DM) is an idiopathic inflammatory myopathy subclassified as classic (CDM) and clinically amyopathic (CADM). It can involve myositis-associated (MAA) and myositis-specific (MSA) autoantibodies.…
Abstract Number: 0859 • ACR Convergence 2025
Trophoblast Dysfunction and Placental Alterations in a Mouse Model of Antiphospholipid Syndrome: The Potential Role of Neutrophil Extracellular Traps
Bruna Mazetto Fonseca¹, Srilakshmi Yalavarthi², Katarina Kmetova², NaveenKumar Somanathapura³, Cyrus Sarosh⁴, Kavya Sugur⁵, Wenying Liang⁶, Yu (Ray) Zuo³, Richard W. Lieberman⁶ and Jason S. Knight³, ¹Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, ²Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, ³University of Michigan, Ann arbor, MI, ⁴University of Michigan, Temperance, MI, ⁵Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, ⁶University of Michigan, Ann arbor
Background/Purpose: Neutrophil extracellular traps (NETs) are webs of chromatin and proteases (e.g., neutrophil elastase) that have been implicated in antiphospholipid syndrome (APS)-associated thrombosis; however, their…
Abstract Number: 0911 • ACR Convergence 2025
A Novel FcRn × Albumin Bispecific Antibody Demonstrates Extended Half-life and Deep IgG Reduction in Preclinical Mouse Models
Hang Su¹, Lulu Li¹, Zenglin Pei¹, Barry Duplantis², Yuhao Wang², Yi Li¹ and Quan Yu¹, ¹Ailux, Shanghai, China (People's Republic), ²Ailux, Boston, MA
Background/Purpose: Autoimmune diseases such as rheumatoid arthritis, systemic lupus erythematosus, and Sjögren’s syndrome are characterized by elevated levels of pathogenic autoantibodies that drive inflammation. The…
Abstract Number: 1391 • ACR Convergence 2025
Assessment of Anti-SSA/Ro Testing Across Various Commercial Laboratories in the United States to Reduce the Burden of Surveillance in Pregnant Women with No History of Fetal Atrioventricular Block (fAVB)
Mala Masson¹, Bettina Cuneo², Philip Carlucci³, Peter Izmirly⁴, Justin Brandt⁵, Colin Phoon⁶, Ashley Roman⁶, Amit Saxena⁷, Michael Belmont⁵, Christina Penfield⁶, Young Mi Lee⁶, Julie Nusbaum⁵, Andrew Rubenstein⁶, Elena Sinkovskaya⁸, Alfred Abuhamad⁸, Gary Satou⁹, Whitnee Hogan¹⁰, Anita Moon-Grady¹¹, Lisa Howley¹², Mary Donofrio¹³, Stephanie Levasseur¹⁴, Miwa Geiger¹⁵, Sonal Owens¹⁶, Kristopher Cumbermack¹⁷, Jyothi Matta¹⁸, Gary Joffe¹⁹, Christopher Lindblade²⁰, Caitlin Haxel²¹, Katherine Kohari²², Joshua Copel²², James Strainic²³, Tam Doan²⁴, Conisha Holloman²⁴, Stacy Killen²⁵, Theresa Tacy²⁶, Michelle Kaplinski²⁶, Nalani Sachan⁶, Nicola Fraser⁶, Robert Clancy¹⁴ and Jill Buyon⁶, ¹NYU Langone Medical Center- Division of Rheumatology, New York, NY, ²University of Arizona College of Medicine, Tucson, AZ, ³New York University School of Medicine, New York, NY, ⁴New York University Grossman School of Medicine, New York, NY, ⁵NYU Langone Health, New York, NY, ⁶NYU Grossman School of Medicine, New York, NY, ⁷Division of Rheumatology, Department of Medicine, NYU Grossman School of Medicine, New York, NY, ⁸Eastern Virginia Medical School, Norfolk, VA, ⁹University of California Los Angeles, Los Angeles, CA, ¹⁰University of Utah, Salt Lake City, UT, ¹¹University of California San Francisco, San Francisco, CA, ¹²Midwest Fetal Care Center, Children's Minnesota/Allina Health, Minneapolis, MN, ¹³Children's National Hospital, Washington, DC, ¹⁴Columbia University, New York, NY, ¹⁵Mount Sinai School of Medicine, New York, NY, ¹⁶University of Michigan, Ann Arbo, MI, ¹⁷University of Kentucky, Lexington, KY, ¹⁸University of Louisville, Louisville, KY, ¹⁹Perinatal Associates of New Mexico, Albuquerque, NM, ²⁰Phoenix Children's Hospital, Phoenix, AZ, ²¹University of Vermont Children's Hospital, Burlington, VT, ²²Yale University, New Haven, CT, ²³UH Rainbow Babies, Cleveland, OH, ²⁴Baylor College of Medicine, Houston, TX, ²⁵Vanderbilt University, Nashville, TN, ²⁶Stanford University, Stanford, CA
Background/Purpose: For women with Sjögren's disease, the risk of Fetal Atrioventricular Block (fAVB) is a critical aspect in pregnancy counseling. To date, the most reliable…
Abstract Number: 1931 • ACR Convergence 2025
COSMOS Prevalence of aTTP in SLE
Nisha Sapkota¹, Yevheniia Andriushchenko², Saadia Malik², Sarang Choi² and Sima Terebelo², ¹Interfaith Medical Center, One Broolyn Health, Brooklyn, NY, ²Brookdale Hospital Medical Center, One Brooklyn Health, Brooklyn
Background/Purpose: Systemic lupus erythematosus (SLE) is a complex autoimmune disease with diverse manifestations, including thrombotic thrombocytopenic purpura (TTP), a life-threatening hematologic disorder. The pathogenesis of…
Abstract Number: 2397 • ACR Convergence 2025
Analytical Performance of a Fully Automated Multiplexed Microarray Immunoassay for the Simultaneous Detection of Fifteen Autoantibodies Associated with Connective Tissue Diseases in a Reference Laboratory in Southern France
Guillaume Nardella¹, Gerber Gomez², Christian Fischer² and Claire Monat¹, ¹Inovie Labosud Provence, Specialized Autoimmunity Analyses, Marseille, France, ²Scientific & Medical Affairs, AliveDx Suisse SA, Eysins, Switzerland
Background/Purpose: Autoantibodies are key diagnostic markers in autoimmune connective tissue diseases (CTD). Conventional testing often requires multiple single-measurand assays, which can be labor-intensive and time-consuming.…
Abstract Number: 2630 • ACR Convergence 2025
The Absence of DORIS Remission Is Associated with Greater Risk of Preterm Birth and Preeclampsia in SLE Pregnancies
Camila Hernández-Blanco¹, Philip Carlucci², Peter Izmirly³, Jessica Dai⁴, Mala Masson⁵, Michael Belmont¹, Amit Saxena⁶, Jane Salmon⁷, Justin Brandt¹ and Jill Buyon⁸, ¹NYU Langone Health, New York, NY, ²New York University School of Medicine, New York, NY, ³New York University Grossman School of Medicine, New York, NY, ⁴New York University Grossman School of Medicine, Tenafly, NJ, ⁵NYU Langone Medical Center- Division of Rheumatology, New York, NY, ⁶Division of Rheumatology, Department of Medicine, NYU Grossman School of Medicine, New York, NY, ⁷Hospital for Special Surgery, New York, NY, ⁸NYU Grossman School of Medicine, New York, NY
Background/Purpose: Systemic Lupus Erythematosus (SLE) primarily affects females of childbearing age and increases the risk of adverse pregnancy outcomes (APOs), particularly in non-White individuals and…
Abstract Number: 0281 • ACR Convergence 2025
Anti-IL-6 Autoantibodies and IL-6 Signalling in Idiopathic Inflammatory Myopathies
Anja Srpcic¹, Manca Ogric¹, Sasa Cucnik¹, Sergej Pirkmajer², Katja Lakota¹ and Katja Perdan Pirkmajer¹, ¹University Medical Centre Ljubljana, Ljubljana, Slovenia, ²Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a heterogeneous group of systemic autoinflammatory diseases that affect muscle tissue, often leading to muscle atrophy, weakness and myalgia.…
Abstract Number: 0860 • ACR Convergence 2025
Activated protein C resistance and protein C antibodies in the antiphospholipid syndrome alliance for clinical trials and international networking (APS ACTION) clinical database and repository
Maria Efthymiou¹, Ibrahim Tohidi-Esfahani², Veronica Venturelli¹, Maria Tektonidou³, Vittorio Pengo⁴, Diana Parades-Ruiz⁵, Ware Branch⁶, Maria Gerosa⁷, Cecilia Nalli⁸, Esther Rodriguez Almaraz⁹, Michelle Petri¹⁰, Ricard Cervera¹¹, Olga Amengual¹², Danieli Andrade¹³, Rohan Willis¹⁴, Maria Laura Bertolaccini¹⁵, Doruk Erkan¹⁶ and Hannah Cohen¹⁷, ¹University College London, London, United Kingdom, ²University of Sydney, Syndey, Australia, Sydney, Australia, ³National and Kapodistrian University of Athens, Athens, Greece, ⁴Padova University Hospital, Padova, Italy, ⁵Biobizkaia Health Research Institute, Barakaldo, Spain, Barakaldo, Spain, ⁶University of Utah Health Sciences Center, Salt Lake City, UT, ⁷University of Milan, Milano, Italy, ⁸ASST SPEDALI CIVILI DI BRESCIA, Brescia, Italy, ⁹Hospital Universitario ¹² de Octubre, Madrid, Spain, Madrid, Spain, ¹⁰Johns Hopkins University School of Medicine, Timonium, MD, ¹¹Hospital Clinic Barcelona, Barcelona, Spain, ¹²Hokkaido University Graduate School of Medicine, Sapporo, Japan, Sapporo, Japan, ¹³University of Sao Paulo, São Paulo, São Paulo, Brazil, ¹⁴University of Texas Medical Branch, Galveston, TX, ¹⁵King's College London, London, United Kingdom, ¹⁶Hospital for Special Surgery, New York, NY, ¹⁷University College London Hospitals NHS Foundation Trust, London, United Kingdom
Background/Purpose: Dysregulation in the protein C anticoagulant pathway, more specifically acquired resistance to activated protein C (APCr) and antibodies against protein C (anti-PC), has been…
Abstract Number: 0942 • ACR Convergence 2025
Sodium-Glucose Co-Transporter 2 Inhibitors Modulate Renal Injury and Autoreactive Plasma Cells in Lupus
Jennifer Nicholson¹, Maria Ossa-Echeverri¹, Arpitha Haranahalli Shivarudrappa¹, Mark Lusco¹, Maria de la Luz Garcia-Hernandez², John Looney¹, Jennifer Anolik³ and Javier Rangel-Moreno¹, ¹University of Rochester, Rochester, NY, ²University of Rochester, West Henrietta, NY, ³University of Rochester Medical Center, Rochester, NY
Background/Purpose: Though immune targeted therapies have improved outcomes in lupus nephritis, a significant number of patients experience renal damage and even progression to end stage…

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