Abstracts tagged "immunology"

Abstract Number: 1646 • ACR Convergence 2025
The Obesity Paradox in Rheumatoid Arthritis: A Propensity-Matched Analysis of Mortality and Cardiovascular Outcomes
Queeneth Edwards¹, Chukwuemelie Okeke², Justin Riley³, Ufuoma Mamoh⁴ and Chekwube Obianyo⁵, ¹Georgia Southern University, Statesboro, GA, ²Maimonides Medical Center, Brooklyn, NY, ³Jefferson Einstein Hospital Philadelphia, Philadelphia, PA, ⁴Medstar Health Georgetown University Internal Medicine Residency Program, Baltimore, MD, ⁵Georgia Southern University, statesboro
Background/Purpose: Obesity is traditionally associated with increased morbidity and mortality in the general population. However, in chronic inflammatory conditions like rheumatoid arthritis (RA), an "obesity…
Abstract Number: 1103 • ACR Convergence 2025
Validation of the Health Assessment Questionnaire Disability Index in Immune Checkpoint Inhibitor-Induced Inflammatory Arthritis
Kayla Chubbs¹, Carrie Ye², Shahin Jamal³, Marie Hudson⁴, Janet Pope⁵, Tom Appleton⁶, Sabrina Hoa⁷, Alexandra Saltman⁸, Megan Himmel⁸, Nancy Maltez⁹, Faiza Khokhar¹⁰, Alexandra Ladouceur¹¹, Ines Colmegna¹², May Choi¹³, Manar Elsayed² and Janet Roberts¹, ¹Dalhousie University, Halifax, NS, Canada, ²University of Alberta, Edmonton, AB, Canada, ³University of British Columbia, Vancouver, BC, Canada, ⁴McGill University, Montréal, QC, Canada, ⁵University of Western Ontario, London, ON, Canada, ⁶Western University, London, ON, Canada, ⁷University of Montreal, Brossard, QC, Canada, ⁸University of Toronto, Toronto, ON, Canada, ⁹Department of Medicine, Division of Rheumatology, The Ottawa Hospital, University of Ottawa, Ottawa, Canada., Ottawa, ON, Canada, ¹⁰Hamilton Ontario, Hamilton, ON, Canada, ¹¹University of Montreal, Montreal, QC, Canada, ¹²The Research Institute of the McGill University Health Centre, Montréal, QC, Canada, ¹³University of Calgary, Calgary, AB, Canada
Background/Purpose: The use of immune checkpoint inhibitors (ICI) continues to increase with an expanding number of indications across varying cancer types and stages. ICIs can…
Abstract Number: 0917 • ACR Convergence 2025
Synovial Tissue Neutrophils are Associated with Disease Activity and Early Remission in Rheumatoid Arthritis
Annabelle Small¹, Vincent Wong², Christopher Altmann¹, Helen Weedon³, Malcolm Smith⁴, Susanna Proudman⁵ and Mihir Wechalekar⁶, ¹Flinders University, Bedford Park, South Australia, Australia, ²College of Medicine and Public Health, Bedford Park, South Australia, Australia, ³Flinders University of South Australia, Bedford Park, South Australia, Australia, ⁴Flinders University, Adelaide, South Australia, Australia, ⁵Royal Adelaide Hospital and University of Adelaide, Medindie, South Australia, Australia, ⁶Flinders Medical Centre and Flinders University, Bedford Park, South Australia, Australia
Background/Purpose: Neutrophils drive local pathology of rheumatoid arthritis (RA) in the synovial tissue (ST) through local production inflammatory mediators, cytokines, and extracellular traps. However, despite…
Abstract Number: 0857 • ACR Convergence 2025
CD14-dependent MAP kinase signaling is required for pathogenic neutrophil extracellular trap formation in APS
Thalia Newman¹, NaveenKumar Somanathapura¹, Chao Liu², Srilakshmi Yalavarthi¹, Pooja Kapoor¹, Ajay Tambralli¹, Jacqueline Madison¹, Yu (Ray) Zuo¹ and Jason S. Knight¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Superior Charter Twp, MI
Background/Purpose: Antibodies targeting beta-2-glycoprotein I (anti-β2GPI) promote inflammation and thrombosis in antiphospholipid syndrome (APS). It has been shown that anti-β2GPI activate neutrophils through Toll-like receptor…
Abstract Number: 0054 • ACR Convergence 2025
Microbial Cues Promote Arthritis and Alter T Cell Selection in SKG Mice
Astha Patel¹, Steven yu¹, Yuka Nakao¹, Mohana Mukherjee¹, Diego Orellana², Jose Scher³, Peter Turnbaugh¹, Renuka Nayak⁴ and Judith Ashouri¹, ¹University of California, San Francisco, San Francisco, CA, ²University of California San Francisco, San Francisco, CA, ³New York University School of Medicine, New York, NY, ⁴University of California, San Francisco (UCSF), San Francisco, CA
Background/Purpose: Dysbiosis of the gut microbiota has been linked to rheumatoid arthritis (RA), but it remains unclear whether these microbial alterations are causal or secondary…
Abstract Number: 2374 • ACR Convergence 2025
Bimekizumab Efficacy And Safety Through 5 Years In Patients With Moderate To Severe Plaque Psoriasis In The US And Canada
Andrew Blauvelt¹, Saakshi Khattri², Phoebe Rich³, Ronald Vender⁴, Kenneth B. Gordon⁵, Balint Szilagyi⁶, Heather Herr⁷, Bertram Knapp⁶, Delphine Deherder⁸, Sarah Kavanagh⁹ and Kim Papp¹⁰, ¹Blauvelt Consulting, LLC, Portland, OR, ²The Mount Sinai Hospital, New York, NY, ³Oregon Dermatology and Research Center, Portland, OR, ⁴Dermatrials Research Inc., Hamilton, ON, Canada, ⁵Department of Dermatology, Medical College of Wisconsin, Milwaukee, WI, ⁶UCB, Monheim am Rhein, Germany, ⁷UCB, Smyrna, GA, ⁸UCB, Braine-l'Alleud, Belgium, ⁹UCB, Morrisville, NC, ¹⁰Probity Medical Research and Alliance Clinical Trials, Waterloo, and Division of Dermatology, Department of Medicine, University of Toronto, Toronto, ON, Canada
Background/Purpose: Given the chronic nature of psoriasis, and the loss of response observed with biologic therapies over time, it is crucial to establish the long-term…
Abstract Number: 1789 • ACR Convergence 2025
Spatial Analysis of Advanced Osteoarthritis Synovial Tissue
jacob Dickman¹, Stephanie Ruzicka¹, Holub Meaghan², Jutras Brandon³, Adam Edelstein³ and Robert Lochhead⁴, ¹Medical College of Wisconsin, Milwaukee, WI, ²Central Michigan University College of Medicine, Mount Pleasant, MI, ³Northwestern University, Chicago, IL, ⁴Medical College of Wisconsin, GERMANTOWN, WI
Background/Purpose: Osteoarthritis (OA) is a joint pathology involving joint cartilage destruction and synovial inflammation. Severe knee OA is often surgically treated with total knee arthroplasty…
Abstract Number: 1645 • ACR Convergence 2025
A sex-modified association between Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) blood concentration and prevalent arthritis among young and middle-aged US adults
Queeneth Edwards¹, Samuel Mbadu¹, Jhy-Charm Soo² and Jian Zhang², ¹Georgia Southern University, Statesboro, GA, ²Georgia Southern University, statesboro
Background/Purpose: Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) (PFAS), including Perfluorooctanoic acid (PFOA) and Perfluorooctane sulfonate (PFOS), are persistent environmental contaminants that may influence inflammatory joint diseases…
Abstract Number: 1096 • ACR Convergence 2025
Impact of IL-6 Receptor and JAK Inhibitors on Humoral Immunity in Inflammatory Rheumatic Diseases: An Ambispective Study.
Elisabet Perea¹, Antonio Avilés², Cristina RodrÍguez-Alvear³, Paloma Vela², Vega Jovaní⁴, Agustín Martínez², M.Pilar Bernabeu Gonzalvez², Irene Calabuig², Ana Lucia Jiménez-Portillo⁵, Alejandra Bermúdez², Silvia Gomez-Sabater², Rocío Caño², Francisco Marco⁵ and Mariano Andrés⁶, ¹Rheumatology Department, Dr. Balmis General University Hospital, Alicante, Spain, Alicante, Spain, ²Rheumatology Department, Dr. Balmis General University Hospital, Alicante, Spain., Alicante, Spain, ³Virgen de la Peña General Hospital, Fuerteventura, Spain, ⁴Hospital General Universitario de Alicante, Reumatología, Alicante, Alicante, Comunidad Valenciana, Spain, ⁵Immunology Department, Dr. Balmis General University Hospital, Alicante, Spain., Alicante, Spain, ⁶Dr Balmis Alicante General University Hospital-ISABIAL, Alicante, Spain
Background/Purpose: Interleukin-6 (IL-6) is a proinflammatory cytokine involved in B cell differentiation and antibody production through the JAK/STAT pathway. In clinical practice, hypogammaglobulinemia (HGG) has…
Abstract Number: 0907 • ACR Convergence 2025
Cross-Species Cellular Mapping and Humanization of Fcγ Receptors to Advance Antibody Modeling
Karel Van Damme¹, Dorine Sichien², Katrien Van der Borght³, Sofie Van Gassen³, Elisabeth De Leeuw³, Victor Bosteels⁴, Joseph Jorssen⁵, Seppe De Winter⁶, Alan Korman⁷, Fabio Benigni⁸, Davide Corti⁸, Ariane Morel⁹, Eric Vivier⁹, Hamida Hammad³, Dirk Elewaut¹⁰, Fabiane Sonego¹¹, Kader Thiam¹¹, Sofie Voet², bianca Balbino¹² and Bart Lambrecht³, ¹Ghent University, Ghent, ²argenx, Ghent, Belgium, ³Ghent University, Ghent, Belgium, ⁴The Francis Crick Institute, London, United Kingdom, ⁵Liège Université, Liege, Belgium, ⁶KU Leuven, Leuven, Belgium, ⁷Vir Biotechnology, San Francisco, ⁸Vir Biotechnology, Bellinzona, Switzerland, ⁹Innate Pharma, Marseille, France, ¹⁰VIB Center for Inflammation Research, and Ghent University Hospital, Department of Rheumatology, Ghent, Belgium, ¹¹genOway, Lyon, France, ¹²argenx, Gent, Belgium
Background/Purpose: Fc receptors mediate the effector functions of antibodies by linking adaptive and innate immunity. Immunoglobulin G (IgG), the most abundant antibody in circulation and…
Abstract Number: 0823 • ACR Convergence 2025
Longitudinal model of paired peripheral blood CITE-seq and skin scRNA-seq data in juvenile systemic sclerosis (jSSc) patients following autologous stem cell transplant (ASCT) reveals reduced expression of SSc marker genes
Julia Elrod¹, Theresa hutchins², Anwesha Sanyal², Paul Szabolcs², Paulina Horvei², Jon Li², F. William Townes¹ and Kathryn Torok², ¹Carnegie Mellon, Pittsburgh, PA, ²University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Juvenile systemic sclerosis (jSSc) is a rare, life-threatening autoimmune disease characterized by fibrosis and immune dysregulation. Autologous stem cell transplant (ASCT) is an emerging…
Abstract Number: 0021 • ACR Convergence 2025
DoCTIS: A Single Cell RNA-Seq Atlas of Drug Response To Targeted Therapies
Antonio Julià¹, Yolanda Guillén², Paloma Vela Casasempere³, Antonio Fernández Nebro⁴, Carlos Marras⁵, Santos Castañeda⁶, Jaime Calvo Alén⁷, Jesús Tornero Molina⁸, Juan Cañete⁹, Eugeni Domènech¹⁰, Javier Gisbert¹¹, Jose M. Carrascosa¹², Eduardo Fonseca¹³, Luis Bujanda Fernández De pierola¹⁴, Valle García Sánchez¹⁵, Britta Siegmund¹⁶, Giampiero Girolomoni¹⁷, Holger Heyn¹⁸, Laura Jiménez Gracia¹⁸, Pere Santamaria¹⁹, Edgar Angelats²⁰, Richard Myers²¹, Sergio H. Martínez Mateu², Juan Ángel Patiño Galindo², Ernest Choy²² and Sara Marsal¹, ¹Vall d'Hebron Hospital Research Institute, Rheumatology Research Group, Barcelona, Spain, ²IMIDomics, Barcelona, Spain, ³Hospital General Universitario de Alicante, Rheumatology, Alicante, Spain, ⁴Hospital Regional Universitario Carlos Haya, Rheumatology, Málaga, Spain, ⁵Hospital Universitario Virgen de la Arrixaca, Rheumatology, Murcia, Spain, ⁶Hospital Universitario de La Princesa, IIS-Princesa, Madrid, Madrid, Spain, ⁷Hospital Universitario de Araba, Rheumatology, Vitoria, Spain, ⁸Hospital Universitario de Guadalajara, Rheumatology, Guadalajara, Spain, ⁹Rheumatology Department, Hospital Clínic and IDIBAPS, Barcelona, Spain, Barcelona, Spain, ¹⁰Hospital Universitari Germans Trias i Pujol, Gastroenterology, Badalona, Spain, ¹¹Hospital Universitario La Princesa, Rheumatology, Madrid, Spain, ¹²Hospital Universitari Germans Trias i Pujol, Dermatology, Badalona, Spain, ¹³Complejo Hospitalario Universitario de A Coruña, Dermatology, A Coruña, Spain, ¹⁴Hospital Universitario de Donostia, Gastroenterology, San Sebastián, Spain, ¹⁵Hospital Universitario Reina Sofía, Gastroenterology, Córdoba, Spain, ¹⁶Charité-Universitätsmedizin Berlin, Gastroenterology, Berlin, Germany, ¹⁷University of Verona, Dermatology, Verona, Spain, ¹⁸Centre for Genomic Regulation (CNAG-CRG), Barcelona, Spain, ¹⁹Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelonoa, Spain, ²⁰Hospital Clínic-IDIBAPS, Barcelona, Spain, ²¹HudsonAlpha Institute for Biotechnology, Huntsville, AL, ²²Division of Infection and Immunity, CREATE Centre, Cardiff University, Cardiff, United Kingdom
Background/Purpose: Targeted therapies have revolutionized the management of immune-mediated inflammatory diseases (IMIDs), however, there is a substantial number of patients who respond poorly to a…
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: 0078 • ACR Convergence 2024
Inhibition of the Deubiquitinase TRABID in a Pre-clinical Mouse Model of Axial Spondyloarthritis Decreases Disease Severity
Archita Srinath¹, Daniele Mauro², Mariia Korshko³, Shaghayegh Foroozan⁴, Mansi Aparnathi⁵, Francesco Ciccia⁶ and Nigil Haroon⁷, ¹University of Toronto, Toronto, ON, Canada, ²University of Campania, Italy, Naples, Naples, Italy, ³University Health Network, Toronto, ON, Canada, ⁴University Health Network/University of Toronto, Toronto, ON, Canada, ⁵University Health Network, Toronto, Canada, ⁶University of Campania, Naples, Italy, ⁷Department of Medicine/Rheumatology, University Health Network, Schroeder Arthritis Institute, University of Toronto, Toronto, ON, Canada
Background/Purpose: Axial Spondyloarthritis is characterized by both inflammation and new bone formation. Current therapeutic targets aim to control inflammation, however, over 40% of patients do…
Abstract Number: 0891 • ACR Convergence 2024
Shared and Disease-Specific Mechanisms of Autoimmunity Using Single Cell Sequencing of Peripheral Immune Cells
Jacquelyn Nestor¹, Rachelly Normand¹, Wamia Said¹, Sergio Aguilar², Nandini Samanta¹, Sidney Martin¹, Roya Best¹, Hoang Anh Tran¹, Adrien Antoinette¹, Eilish Dillon³, Devin King³, April Jorge⁴, Maureen Leonard⁴, Pritha Sen³, Kerry Reynolds⁴, John Stone⁵, Michelle Rengarajan¹, Tanuja Chitnis⁶, Kevin Wei⁷, Deepak Rao³, Andrew Luster⁸, Gary Reynolds¹ and Alexandra-Chloe Villani¹, ¹Massachusetts General Hospital, Harvard Medical School, Broad Institute of MIT and Harvard, Boston, MA, ²National Center for Genomic Analysis, Barcelona, Spain, ³Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ⁴Massachusetts General Hospital, Harvard Medical School, Boston, MA, ⁵Massachusetts General Hospital , Harvard Medical School, Concord, MA, ⁶Brigham and Women's Hospital, Massachusetts General Hospital, Harvard Medical School, Boston, MA, ⁷Brigham and Women's Hospital at Harvard Medical School, Boston, MA, ⁸Massachusetts General Hospital, Charlestown, MA
Background/Purpose: Rheumatologic diseases are characterized by distinct clinical presentations and patterns of organ involvement, yet share many genetic risk factors and treatment responses. This suggests…

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