Abstracts tagged "Autoantibody(ies)"

Abstract Number: 0531 • ACR Convergence 2025
Evaluating the Diagnostic Utility of 14-3-3 eta Autoantibodies in Axial Spondyloarthritis: A Multiplex Assay Approach
Anthony Marotta¹, Walter P. Maksymowych², Stephen Bleakley¹, Stephanie Wichuk³ and Norma Biln⁴, ¹Augurex Life Sciences Corp, Vancouver, BC, Canada, ²Department of Medicine, University of Alberta, ⁵⁶⁸ Heritage Building, Edmonton, AB, Canada, ³University of Alberta, Edmonton, AB, Canada, ⁴Augurex Life Sciences, Vancouver, BC, Canada
Background/Purpose: Novel biomarkers for axSpA are urgently needed to enable earlier diagnosis and improve patient outcomes. An assay for quantifying 14-3-3η autoantibodies (AAbs) has been…
Abstract Number: 0195 • ACR Convergence 2025
Utility of Repeat ANA Testing
Michael Luggen¹ and Sila Mateo Faxas², ¹University of Cincinnati College of Medicine, Cincinnati, OH, ²Good Samaritan Hospital, Cincinnati, OH
Background/Purpose: The ANA by immunofluorescence is a sensitive screening test for most systemic auto-immune rheumatic diseases (SARDs). A negative result is oftentimes sufficient to exclude…
Abstract Number: 2492 • ACR Convergence 2025
Autoantibody Profiles and Disease Trajectories in Early Systemic Sclerosis: Insights from a Prospective Cohort
Marzieh Jamali¹, Amisha Kaur¹, Suiyuan Huang¹, James St. Clair², John Varga¹, Carleigh Zahn², Erica Mulcaire-Jones¹, Alain Lescoat¹ and Dinesh Khanna¹, ¹University of Michigan, Ann arbor, MI, ²University of Michigan, Ann Arbor
Background/Purpose: Systemic sclerosis (SSc) is a rare autoimmune disease with high mortality. Early stratification by autoantibody (SSc-Ab) profile may inform prognosis and management, but data…
Abstract Number: 2236 • ACR Convergence 2025
Treatment-induced autoantibodies in Rheumatoid Arthritis patients receiving anti-TNF inhibitors or JAK inhibitors
EVRIPIDIS KALTSONOUDIS¹, Nikolaos Kougkas², Panagiota Karagianni³, Tereza Memi⁴, Nikolaos Koletsos⁵ and Eleftherios Pelechas⁶, ¹Rheumatology Clinic, University of Ioannina, IOANNINA, Ioannina, Greece, ²⁴th Department of Internal Medicine, Aristotle University, Thessaloniki, Thessaloniki, Greece, ³BioAcuHealth.gr, Ioannina, Ioannina, Greece, ⁴University Hospital of Ioannina, Ioannina, Ioannina, Greece, ⁵School of Health Sciences, Faculty of Medicine, University of Ioannina, Department of Rheumatology, Ioannina, Greece, Ioannina, Ioannina, Greece, ⁶Hatzikosta General Hospital of Ioannina, Ioannina, Ioannina, Greece
Background/Purpose: Rheumatoid arthritis (RA) can coexist with other autoimmune disorders such as Sjögren’s syndrome and systemic lupus erythematosus (SLE). In these cases, the terms secondary…
Abstract Number: 1726 • ACR Convergence 2025
Inflammatory arthritis immune related adverse events represent a unique autoimmune disease entity primarily driven by T cells, but likely not autoantibodies
Xingxing Zhu¹, yue Yu¹, Yangfen Li¹, Panwen wang², ying li², Chantal McCabe², shiju chen², Brenna Sharp², Amber Wolzen², Hannah Langenfeld¹, Andrew C. Hanson¹, Cynthia Crowson³, svetomir Markovic², John Davis¹, Haidong Dong², Uma Thanarajasingam¹ and Hu Zeng¹, ¹Mayo Clinic, Rochester, MN, ²Mayo Clinic, Rochester, ³Mayo Clinic, Stewartvillle, MN
Background/Purpose: The immunological basis of inflammatory arthritis (IA) immune related adverse event (irAE) following anti-PD-1/PD-L1 immune checkpoint inhibition (ICI) therapy is incompletely understood. The relationship…
Abstract Number: 1322 • ACR Convergence 2025
High Rheumatoid Factor Titers and Biologic Persistence in RA: Beyond TNF Inhibitors
Sara Salas Santamaría¹, Marta Chao Moreira², Manuel Juárez³, Marta Novella-Navarro², Pilar Nozal², Ana Martínez², Carolina Tornero⁴, Cristina Bohorquez⁵, Ana Sánchez², Carmen Cámara², Eduardo López², Eugenio de Miguel² and Chamaida Plasencia-Rodríguez², ¹Hospital Universitario La Paz, Miranda de Ebro, Castilla y Leon, Spain, ²Hospital Universitario La Paz, Madrid, Spain, ³Rheumatology Unit, Hospital Universitario La Paz, IdiPAZ, Madrid, Spain, ⁴Hospital La Paz, Madrid, Spain, ⁵La Paz University Hospital, Alcalá De Henares, Spain
Background/Purpose: Rheumatoid factor (RF), an autoantibody targeting the Fc portion of IgG, is one of the most studied biomarkers in rheumatoid arthritis (RA). High RF…
Abstract Number: 0701 • ACR Convergence 2025
Exploring Calcinosis On Hand X-Rays In Systemic Sclerosis: a Mayo Clinic Cohort
Maximiliano Diaz Menindez¹, Simran Ravindra Nimal², Michael Pham², Caroyln Harvey³, Leroy W. Griffing² and Vivek Nagaraja², ¹Mayo Clinic School of Graduate Medical Education, Phoenix, AZ, ²Mayo Clinic, Scottsdale, AZ, ³Mayo Clinic, Phoenix, AZ
Background/Purpose: Calcinosis is a vexing manifestation in patients with systemic sclerosis (SSc) with a variable prevalence among cohorts. Up to 86% of calcinosis cases are…
Abstract Number: 0529 • ACR Convergence 2025
Anti-PeptidylArginine Deiminase-2 (anti-PAD2) Autoantibodies in Psoriatic Arthritis
Ana-Maria Orbai¹, Hong Wang², Maria Grecu³, Ning Meng⁴, Ji Soo Kim⁵, Clifton Bingham⁴, Uzma Haque², John Miller⁴, Felipe Andrade², Erika Darrah⁶ and Eleni Tiniakou⁷, ¹Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ²Johns Hopkins University School of Medicine, Baltimore, MD, ³River Hill High School, Clarksville, MD, ⁴Johns Hopkins University, Baltimore, MD, ⁵Johns Hopkins, Baltimore, MD, ⁶Astra Zeneca, Gaithersburg, MD, ⁷UT Health Science Houston, Houston, TX
Background/Purpose: Citrullinated cathelicidin (LL37), a human-derived antimicrobial peptide, is an autoantigen in psoriatic arthritis (PsA).1 LL37 citrullination by peptidylarginine deiminase (PAD) enzymes attenuates immune activation…
Abstract Number: 0139 • ACR Convergence 2025
When One Isn’t Enough: Does Adding IgM Worsen the Antiphospholipid Syndrome Phenotype?
Santiago Dans Caballero¹, Massimo Radin², Chary López pedrera³, MARIA ANGELES AGUIRRE ZAMORANO⁴, Christian Merlo-Ruiz⁵, Ismael Sanchez-Pareja⁴, Irene Cecchi⁶ and Savino Sciascia⁷, ¹Reina Sofia University Hospital, Lebrija, Andalucia, Spain, ²University of Turin, Turin, Turin, Italy, ³Rheumatology service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ Reina Sofia University Hospital/ University of Cordoba, Spain, Cordoba, Spain, ⁴Rheumatology service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ Reina Sofia University Hospital/ University of Cordoba, Spain, Córdoba, Spain, ⁵Rheumatology service/Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ Reina Sofia University Hospital/ University of Cordoba, Spain, Córdoba, Spain, ⁶University of Turin, Turin, Piemonte, Italy, ⁷University of Turin, Torino, Italy
Background/Purpose: Antiphospholipid syndrome (APS) is a systemic autoimmune disorder characterized by the persistent presence of antiphospholipid antibodies (aPL) along with clinical manifestations such as venous…
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: 0105 • ACR Convergence 2024
Novel Autoantibodies Identified in the Antiphospholipid Syndrome
Shikai Hu¹, Yangzhong Zhou¹, Menghua Cai¹, Mengtao Li² and JIULIANG ZHAO¹, ¹Peking Union Medical College Hospital, Beijing, China, ²Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China 2National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, Beijing, China
Background/Purpose: The antiphospholipid syndrome (APS) is a systemic autoimmune disease characterized by arterial, venous, or microvascular thrombosis, recurrent pregnancy morbidity, or non-thrombotic manifestations in the…
Abstract Number: 0458 • ACR Convergence 2024
Long-Term Outcomes in Seronegative Rheumatoid Arthritis
Bradly Kimbrough¹, Cynthia Crowson², Sara Achenbach³ and Elena Myasoedova², ¹Mayo Clinic Rochester, Rochester, MN, ²Mayo Clinic, Rochester, MN, ³Mayo Clinic, Rochester, Rochester, MN
Background/Purpose: Seronegative rheumatoid arthritis (RA) is a heterogenous disease distinct from seropositive RA regarding genetic risk factors, pathobiology, and prognosis. Notably, recent studies have shown…
Abstract Number: 0868 • ACR Convergence 2024
Autoantibodies to Joint-related Proteins Predict Severe Joint Destruction in Difficult-to-treat Rheumatoid Arthritis Patients
Inger Gjertsson¹, Monica Leu Agelii², Outi Sareila³, Erik Lönnblom⁴, Lennart TH Jacobsson⁵, Lei Cheng⁴, Kristina Forslind⁶, Ingiäld Hafström⁷, Maria Andersson⁸ and Rikard Holmdahl⁹, ¹University of Gothenburg, Gothenburg, Sweden, ²Institutionen för medicin, avd för reumatologi och inflammationsforskning, Goteborg, Sweden, ³Karolinska Institutet, Stockholm, Sweden, ⁴Karolinska Institute, Stockholm, Sweden, ⁵Lund University, Malmö, Sweden, ⁶Lund University, Department of Clinical Sciences Lund, Section of Rheumatology, Lund, Sweden, ⁷Karolinska Institutet, Department of Medicine Huddinge, Division of Gastroenterology and Rheumatology, and Karolinska University Hospital, Stockholm, Sweden, ⁸FoU Spenshult, Halmstad, Sweden, ⁹Department of Rheumatology and Inflammation Research, Institute for Medicine, Sahlgrenska Academy, University of Gothenburg, Stockholm, Stockholms Lan, Sweden
Background/Purpose: Although treatment of rheumatoid arthritis (RA) has improved there is still a significant number of patients who never reach low disease activity, known as…
Abstract Number: 1496 • ACR Convergence 2024
Dysregulated Serum Cytokines in Association with Clinical Manifestations in Patients with Systemic Lupus Erythematosus
Loqmane seridi¹, Steven Leonardo², Brittney Scott³, Robert Gordon¹, cathye shu¹, Kaiyin Fei¹, Kim Lo³, Anne Stevens¹ and Sheng Gao³, ¹Janssen Research & Development, LLC, Spring House, PA, ²Janssen Research & Development, LLC, a Johnson & Johnson Company, Cambridge, MA, ³Janssen Research & Development, LLC, a Johnson & Johnson company, Spring House, PA
Background/Purpose: SLE is a heterogeneous autoimmune disease affecting multiple organ systems, making clinical trial design challenging. Biomarkers that can identify patients with specific clinical manifestations…
Abstract Number: 1701 • ACR Convergence 2024
STING Pathway Activity in SLE Patient Serum Correlates with NFkB Activation, Autoantibody Levels, and a Unique Cytokine Profile That Drives Disease Activity
Hyun Hee Kim¹, Haochen Jiang², Tatiana Ort³, Gary Sims³ and Richard Hanna⁴, ¹AstraZeneca, Gaithersburg, MD, ²University of Nebraska, Omaha, NE, ³Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, ⁴AstraZeneca, Dickerson, MD
Background/Purpose: Systemic lupus erythematosus (SLE) is a heterogenous systemic autoimmune disease which is associated with innate immune activation, type I IFN, inflammasome and NFkB-related cytokines.…

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