Abstracts tagged "Innate Immunity Rheumatic Disease"

Abstract Number: 2579 • ACR Convergence 2025
Mutant COPA Permits Aberrant NETosis and Exacerbates Autoimmune Lung Disease
Richard Moore¹, Lihong Huo¹, Colin Koziel¹, Barry Stripp², Tiphanie Vogel³, Daniel Wallace⁴ and Caroline Jefferies⁵, ¹Cedars-Sinai, Beverly Hills, CA, ²Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA, ³Baylor College of Medicine, Houston, TX, ⁴Cedars Sinai Medical Center, Studio City, CA, ⁵Cedars-Sinai Medical Center, Beverly Hills, CA
Background/Purpose: COPA syndrome is an autosomal dominant disease caused by missense mutations within the COPA gene. Typical onset begins during childhood with patients developing lung…
Abstract Number: 1875 • ACR Convergence 2025
Fcγ-receptor activation by circulating immune complexes in autoimmunity and CD19.CAR-T cell therapy
Merle Freitag¹, Maren Claus², Philippe Kolb³, Valeria Falcone⁴, Ivana Andreeva¹, Norbert Blank⁵, Hanns-Martin Lorenz⁶, Georg Schett⁷ and Wolfgang Merkt⁸, ¹Uniklinik Heidelberg, Heidelberg, Germany, ²IfADo, Leibniz Institute Dortmund, Dortmund, Germany, ³INSTITUTE OF VIROLOGY Medical Center, Freiburg, Freiburg, Germany, ⁴University Medical Center, Freiburg, Freiburg, Germany, ⁵University Hospital Heidelberg, Heidelberg, Germany, ⁶Universitétsklinikum Heidelberg, Heidelberg, Germany, ⁷Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany, Erlangen, Germany, ⁸University Hospital Düsseldorf, Düsseldorf, Germany
Background/Purpose: The role of autoantibodies in systemic autoimmunity, such as connective tissue diseases (CTD), has been recently highlighted by the successful treatment with CD19-targeting CAR-T…
Abstract Number: 0999 • ACR Convergence 2025
Myositis Induced by Histidyl-Transfer tRNA Synthetase is Exacerbated by Membranopathy and Suppressed by Regulatory T Cells
Samantha Coss¹, Nicholas Young², Shane Bruckner³, Braden Zeno⁴, Gianni Giarrano⁵, Hannah Bulgart⁶, Paula Clemens⁷, Jisna Paul², Chester V. Oddis⁸, noah weisleder⁹, Dana Ascherman⁸ and Wael Jarjour¹⁰, ¹Nationwide Children's Hospital, Columbus, OH, ²Division of Rheumatology and Immunology, Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, Columbus, OH, ³OSU, Columbus, OH, ⁴Ohio State University, upper arlington, OH, ⁵Division of Rheumatology, Nationwide Children's Hospital, Columbus, OH, ⁶Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, KY, ⁷Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, ⁸University of Pittsburgh, Pittsburgh, PA, ⁹University of Kentucky, Lexington, KY, ¹⁰The Ohio State University, Columbus, OH
Background/Purpose: Idiopathic inflammatory myopathies (IIMs) are a heterogeneous group of autoimmune disorders targeting muscle as well as extra-muscular organs. Among the most common autoantibodies associated…
Abstract Number: 0950 • ACR Convergence 2025
Ep300-Catalyzed Rad50 Lactylation Compromises Genomic Stability and Drives CD4+T cells Cell Senescence in SLE
mingyang zhang¹, huanzi dai², cun lan³ and mingyang sun³, ¹Daping Hospital, Army Medical University, chongqing, Chongqing, China (People's Republic), ²Daping Hospital & Research Institute of Surgery, Army Medical University, Chongqing, PR China., Chongqing, China (People's Republic), ³Daping Hospital, Army Medical University, chongqing, China (People's Republic)
Background/Purpose: Senescent CD4+ T cells are increasingly implicated in systemic lupus erythematosus (SLE) pathogenesis. While metabolic reprogramming in lupus T cells enhances glycolysis and lactate…
Abstract Number: 0932 • ACR Convergence 2025
Compartment-specific NK-cell phenotypes reveal distinct maturation and activation states in inflammatory arthritis
Franca Sophie Deicher¹, Tarik Exner², Maren Claus³, Schayan Yousefian⁴, Lea Rodon⁵, sophie leonhardt⁶, Jörg Distler⁷, Carsten Watzl³, Hanns-Martin Lorenz⁸, Simon Haas⁴, Daniel Hübschmann⁹ and Wolfgang Merkt¹⁰, ¹Uniklinik Düsseldorf, Düsseldorf, Germany, ²University Hospital Heidelberg, Heidelberg, Germany, ³IfADo, Leibniz Institute Dortmund, Dortmund, Germany, ⁴Charite, Berlin, Berlin, Germany, ⁵University Hospital Heidelberg, Heidelberg, Hungary, ⁶Heidelberg University, Heidelberg, Germany, ⁷University Hospital Duesseldorf and HHU, Duesseldorf, Germany, ⁸Universitétsklinikum Heidelberg, Heidelberg, Germany, ⁹Heidelberg University, Berlin, Germany, ¹⁰University Hospital Düsseldorf, Düsseldorf, Germany
Background/Purpose: Synovial natural killer (NK) cells contribute to inflammation in arthritis by secreting cytokines and modulating synovial fibroblast activation. The aim of this study is…
Abstract Number: 0821 • ACR Convergence 2025
Flipping The Switch – Classical Complement Activation closely linked to IFN-signalling in Stills Disease
Freya Huijsmans¹, Alejandra Bodelón de Frutos¹, Lyanne Sijbers¹, Susanne Benseler², Joost Swart³, Rae Yeung⁴, Sebastiaan Vastert⁵ and Jorg van Loosdregt¹, ¹Pediatric Rheumatology & Immunology, University Medical Center Utrecht, Wilhelmina Children's Hospital, Utrecht, Utrecht, Netherlands, ²Cumming School of Medicine, Department of Pediatrics, University of Calgary, Calgary, AB, Canada, ³Wilhelmina Children's Hospital / UMC Utrecht, Utrecht, Utrecht, Netherlands, ⁴The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada, ⁵University Medical Center Utrecht, Utrecht, Utrecht, Netherlands
Background/Purpose: Stills disease (SD) is an autoinflammatory syndrome characterized by severe innate immune dysregulation. The complement system, an essential component of innate immunity, can drive…
Abstract Number: 0262 • ACR Convergence 2025
Preclinical Characterization of ABB071 – a Humanized anti-CD180 Antibody that Modulates Multiple Pro-inflammatory Immune Pathways for the Treatment of Autoimmune and Inflammatory Disorders
Margaret McDaniel, Brenda Stevens, Socheath Khim, Alan Wahl, Che-Leung Law and Edward Clark, Abacus Bioscience, Seattle, WA
Background/Purpose: CD180 is a Toll-like receptor (TLR) homolog expressed on antigen-presenting cells (APCs): B cells, dendritic cells, monocytes, and macrophages. While the extracellular domain of…
Abstract Number: 0237 • ACR Convergence 2025
Monogenic autoinflammatory diseases and undefined autoinflammatory syndrome in Western Mediterranean adults: clinical, genetic, and therapeutic insights
Alba Maria Torrat Noves¹, José Ivorra Cortes², Alejandro Jose Mateo Vendrell², ELENA GRAU GARCIA³, Pablo Muñoz Martinez², Laura Mas Sanchez⁴, Daniel Ramos Castro⁵, Iago Alcántara Álvarez⁶, Belen Villanueva Manes⁷, Andres perez Hurtado², Miguel Simeo Vinaixa², inmaculada Calvo Penades⁸, Berta López Montesinos⁸, Lucia Lacruz-perez⁸ and José Andrés Román Ivorra⁹, ¹Hospital Universitari i Politècnic La Fe de Valencia, Valencia, Spain, ²Rheumatology Department. HUP La Fe, Valencia, Spain, ³HUP La Fe, Valencia, Comunidad Valenciana, Spain, ⁴Hospital Universitari i Politecnic La Fe, València, Spain, ⁵Hospital Universitari i Politecnic La Fe, Valencia, Spain, ⁶Hospital Universitari i Politénic La Fe, València, Spain, ⁷Hospital La Fe, València, Spain, ⁸Pediatric Rheumatology Department. HUP La Fe, Valencia, Spain, ⁹Hospital Universitari i Politècnic La Fe, Valencia, Spain
Background/Purpose: Monogenic autoinflammatory diseases are rare innate immunity disorders characterized by recurrent episodes of fever and systemic inflammation. They are most often described in childhood,…
Abstract Number: 0250 • ACR Convergence 2024
Effectiveness of Tuberculosis Preventive Treatment in Patients with Rheumatic Diseases: A Global Meta-analysis of Cohort Studies
Beiming Wang¹, Shi Chen², Xiaoqing Liu³ and Lifan Zhang³, ¹Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, ²Division of Infectious Diseases, Department of Internal medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, ³Peking union medical college hospital, Beijing, China
Background/Purpose: As patients with rheumatic diseases (RDs) growing into a large population globally, concerns continue exist regarding the potential development of tuberculosis (TB) in this…
Abstract Number: 0773 • ACR Convergence 2024
Anti-Citrullinated Histone Antibody CIT-013 Targets NETs in Inflamed Joints and Halts NET-mediated Joint Deterioration
Leonie Middelink¹, Annemarie Kip², Maarten van der Linden³, Sangeeta Kumari², Stephanie van Dalen², Josephine Stein⁴, Tirza Bruurmijn², Martyn Foster⁵, Peter van Zandvoort², Patrick Round², Eric Meldrum², Helmuth van Es² and Renato Chirivi², ¹Citryll, Oss, Noord-Brabant, Netherlands, ²Citryll BV, Oss, Noord-Brabant, Netherlands, ³Citryll BV, Oss, Netherlands, ⁴Citryll BV, Oss, Noord-Holland, Netherlands, ⁵Experimental Pathology Consultancy, Benfleet, United Kingdom
Background/Purpose: Neutrophil extracellular traps (NETs) contribute to the pathophysiology of many immune-mediated inflammatory diseases (IMIDs). Though NETosis-targeting therapeutics have shown potential as effective treatments, currently…
Abstract Number: 0933 • ACR Convergence 2024
NLRP3 Inflammasome Promotes Release of Peptidyl Arginine Deiminases2 and 4 from Human Neutrophils
Teneema Kuriakose, Mingxin Yang, Lacie Scaletta and Gary Sims, Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD
Background/Purpose: Autoantibodies targeting citrullinated proteins (ACPAs) are a characteristic feature and a diagnostic marker in rheumatoid arthritis (RA). The generation of citrullinated protein autoantigens is…
Abstract Number: 1537 • ACR Convergence 2024
Discovery of VENT-03: A Novel Clinical cGAS Inhibitor for the Treatment of SLE and Other Autoimmune Diseases
Kelly A. Pike¹, Nadine Fradet¹, Samuel Gaudreault¹, Alexander M Skeldon², Ramsay E. Beveridge², Patrick Cyr², Nicolas Sgarioto², Philippe Le Gros³, Eleftheria Seliniotakis², Valerie Dumais², Jacklyn Smith², James I.P Stewart², Mehrnaz Gharaee-Kermani⁴, Michelle J Kahlenberg⁴ and Michael A. Crackower², ¹Ventus Therapeutics, Saint-Laurent, QC, Canada, ²Ventus Therapeutics, Saint-Laurent, Canada, ³Ventus Therapeutics, Montreal, QC, Canada, ⁴University of Michigan, Ann Arbor, MI
Background/Purpose: Cyclic GMP-AMP synthase (cGAS) is a nucleic acid sensor that plays a central role in anti-viral responses. Following the detection of intracellular double-stranded DNA,…
Abstract Number: 2578 • ACR Convergence 2024
Safety, Biomarker Response, and Efficacy of E6742, a Dual Antagonist of Toll-Like Receptor 7 and 8, in a First-in-Patient, Randomized, Double-Blind, Phase1/2 Study in Systemic Lupus Erythematosus
Yoshiya Tanaka¹, Atsushi Kumanogoh², Tatsuya Atsumi³, Tomonori Ishii⁴, Fumitoshi Tago⁵, Mari Aoki⁵, Shintaro Yamamuro⁵, Keisuke Sakayori⁵, Kentaro Takahashi⁵ and Shizuo Akira⁶, ¹Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan, ²Osaka University, Osaka, Japan, ³Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan, Sapporo, Japan, ⁴Tohoku Medical and Pharmaceutical University / Department of Hematology and Rheumatology, sendai, Japan, ⁵Eisai Company, Ltd., Tokyo, Japan, ⁶Osaka University Immunology Frontier Research Center, Osaka, Japan
Background/Purpose: There is strong evidence for the relationship between Toll-like receptor (TLR)7/8 and systemic lupus erythematosus (SLE) pathophysiology. Dual inhibition of TLR7/8 will modulate innate…
Abstract Number: 2369 • ACR Convergence 2023
Investigating Macrophage Heterogeneity in the Esophagus of SSc Patients
Hadijat Makinde¹, Matthew Dapas², Salina Dominguez², Tyler Therron¹, Miranda Gurra¹, Mary Karns³, Kathleen Aren³, Alexandra Soriano², Lutfiyya Muhammad⁴, Carla Cuda¹, Dustin Carlson¹, Jane Dematte⁵, Darren Brenner¹, John Pandolfino⁶, Harris Perlman¹, Deborah Winter⁷ and Marie-Pier Tetreault¹, ¹Northwestern University, Chicago, IL, ²Northwestern University FSM Division of Rheumatology, Chicago, IL, ³Northwestern University Division of Rheumatology, Chicago, IL, ⁴Northwestern University Feinberg School of Medicine, Chicago, IL, ⁵Northwestern University, Elmhurst, IL, ⁶Northwestern University, Feinberg School of Medicine, Wilmette, IL, ⁷Northwestern University, Skokie, IL
Background/Purpose: Systemic sclerosis (SSc) is characterized by an initial inflammatory phase followed by fibrosis. Esophageal dysfunction in SSc is associated with Gastroesophageal Reflux Disease (GERD),…
Abstract Number: 0052 • ACR Convergence 2023
Possible Involvement of TLR4 in the Pathogenesis of Primary Sjögren’s Syndrome Through Induction of the Expression of BAFF Receptor, BR3 in Peripheral Monocytes
Keiko Yoshimoto¹, Yumi Ikeda¹, Katsuya Suzuki², Hiroyuki Fukui¹, Kotaro Matsumoto¹, Masaru Takeshita¹, Tsutomu Takeuchi³ and Yuko Kaneko⁴, ¹Keio University School of Medicine, Tokyo, Japan, ²Keio University, Shinjuku, Japan, ³Keio University School of Medicine and Saitama Medical University, Tokyo, Japan, ⁴Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
Background/Purpose: Toll-like receptors (TLRs) play a pivotal role in innate immune system and chronic inﬂammation in autoimmune diseases. It has been reported that signaling pathways…

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