Abstracts tagged "TH17 Cells"

Abstract Number: 0991 • ACR Convergence 2025
MTHFD2 is a Novel Metabolic Target in Autoimmune Disease
Laura McMillan, Celia Evans, Marina Makrecka-Kuka, Niamh Richmond, Gareth Davies, Hamel Patel, Michael Herdman, Mark Whitmarsh, Alessandro Mazzacani, Peter Bunyard, Madduri Ravin Rao and Iain Kilty, Sitryx Therapeutics, Oxford, United Kingdom
Background/Purpose: Aberrant activation and persistence of adaptive immune responses play a central role in autoimmune pathogenesis. Where traditional immunosuppressive therapies offer a broad targeting approach,…
Abstract Number: 0979 • ACR Convergence 2025
IL-23 upregulates IFN-γ secretion in Th17.1, but not in Th17 or classical Th1 cells
Bennie van Heeswijk¹, Wida Razawy², Anne-Marie Mus-Otten³, Patrick Asmawidjaja², Pieter Leenen² and Erik Lubberts⁴, ¹Erasmus MC, University Medical Center Rotterdam, Hoofddorp, Netherlands, ²Erasmus University Medical Center, Rotterdam, the Netherlands, Rotterdam, Netherlands, ³Erasmus medical center, Rotterdam, Netherlands, ⁴Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
Background/Purpose: Interleukin-23 (IL-23) is a key cytokine in the pathogenesis of psoriatic diseases, as demonstrated by the clinical success of IL-23-targeted therapies. Monocytes are a…
Abstract Number: 0978 • ACR Convergence 2025
IL-17A+ HLA-DR-CCR6+ regulatory T cells: Dual role in T cell suppression and synovial inflammation in arthritis.
Bennie Heeswijk¹, Margot Bongenaar¹, Nadine Davelaar¹, Pascal de Jong¹, Hannah den Braanker¹, Radboud Dolhain¹ and Erik Lubberts², ¹Erasmus University Medical Center, Rotterdam, the Netherlands, Rotterdam, Netherlands, ²Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
Background/Purpose: Regulatory T cells (Tregs) are essential for maintaining immune tolerance and limiting excessive immune responses. However, Tregs show high levels of heterogeneity and plasticity,…
Abstract Number: 0800 • ACR Convergence 2025
Microbiota-Derived Indole Promotes Collagen-Induced Arthritis Type-17 Immunity through Intestinal Dendritic Cell Cytokine Production
Jing Jing Li¹, Sucai Liu², Brenda Seymour³, Brendan Allen², Le Yiphyo², Cassandra Levens¹ and Kristine Kuhn⁴, ¹Rheumatology, Aurora, CO, ²University of Colorado School of Medicine, Aurora, CO, ³University of Colorado School of Medicine, Denver, CO, ⁴²⁰²² - ²⁰²³ / Adult/ University of Colorado, Aurora, CO
Background/Purpose: One of the most substantial impacts of microbe-host interactions at the intestinal mucosa is the development of type 17 immunity. A Th17 signature has…
Abstract Number: 0106 • ACR Convergence 2025
Investigation of DNA Methylation Inhibition in a Mouse Model of Ankylosing Spondylitis
Goh Murayama¹, Kurisu Tada², Naoto Tamura³, Eri Hayashi¹, Taiga Kuga⁴, Ken Yamaji⁵ and HOSHIKO FURUSAWA⁶, ¹Department of Internal Medicine and Rheumatology, Juntendo University Graduate School of Medicine, Tokyo, Japan, ²Department of Internal Medicine and Rheumatology, Juntendo University Graduate School of Medicine, Tokyo, ³Juntendo University School of Medicine, Tokyo, Japan, ⁴Juntendo University, Tokyo, Japan, ⁵Juntendo University, Department of Internal Medicine and Rheumatology, Tokyo, Japan, ⁶juntendo, tokyo, Japan
Background/Purpose: Ankylosing spondylitis (AS) is a chronic inflammatory disease characterized by enthesitis in axial joints, bone erosion near the entheses, and subsequent irreversible ankylosis due…
Abstract Number: 0101 • ACR Convergence 2025
Enrichment of putative bacteria-reactive gut-derived IL-17+ tissue resident memory helper T cells in arthritic ankles in the SKG mouse model of spondyloarthritis
Benjamin Cai¹, Megan Soon², Zewen Kelvin Tuong², Mark Morrison², Anne-Sophie Bergot³ and Ranjeny Thomas⁴, ¹Frazer Institute, The University of Queensland, Brisbane, Queensland, Australia, ²Frazer Institute, The University of Queensland, Brisbane, Australia, ³Frazer Institute, The University of Queensland, Woolloongabba, Queensland, Australia, ⁴Frazer Institute, University of Queensland, Brisbane, Queensland, Australia
Background/Purpose: In spondyloarthropathy (SpA), arthritis is often associated with gut inflammation. The strong genetic association with HLA-B27 implicates involvement of T cells, but how gut…
Abstract Number: 2688 • ACR Convergence 2025
Single cell RNA-seq immune profiling of blood samples from a psoriatic disease clinical trial reveals a CD4 T cell population associated with response to IL-23 blockade
Kathryne Marks¹, Anina Sun², Ifeoluwakiisi Adejoorin¹, Lourdes Perez Chada³, Anna Perillo⁴, Leanne Barrett², Michael Garshick⁵, James Krueger⁶, Joseph Merola⁷, Marcelo DiCarli², Deepak Rao¹ and Brittany Weber⁸, ¹Brigham and Women's Hospital, Boston, MA, ²Brigham And Women's Hospital, Boston, ³Harvard Medical School, Wayland, MA, ⁴The Rockefeller University, New York, NY, USA, New York, NY, ⁵NYU Langone Health, Tenafly, NJ, ⁶Rockefeller University, New York, NY, ⁷UT Southwestern Medical Center, Dallas, TX, ⁸Brigham and Women's Hospital, DEDHAM, MA
Background/Purpose: The use of IL-23 inhibitors (IL-23i) for psoriatic diseases resulted in significant improvement in disease symptoms for many patients. Whether any blood immune cell…
Abstract Number: 2583 • ACR Convergence 2025
CCL20+ monocytes expanded by HLA-B*27 fuel Th17 generation in Axial Spondyloarthritis
Jinyi Zhao¹, Feng Liu², Hui Shi³, Liye Chen¹ and Paul Bowness⁴, ¹Botnar Research Center, University of Oxford, Oxford, United Kingdom, ²University of Oxford, Oxford, United Kingdom, ³Botnar Research Center, University of Oxford, Oxford, England, United Kingdom, ⁴NIHR Oxford Biomedical Research Centre, University of Oxford, NDORMS, Oxford, United Kingdom
Background/Purpose: Axial spondyloarthritis (AxSpA) is a chronic inflammatory arthritis characterized by monocyte activation and Th17 cell expansion. While HLA-B*27 is the strongest genetic risk factor…
Abstract Number: 1756 • ACR Convergence 2025
Exosomal Cargo and Surface Markers: Informative Signals in Axial Spondyloarthritis
Fataneh Tavasolian¹, star lively², chiara Pastrello³, Melissa Lim¹, Addison Pacheco⁴, Zoya Qaiyum⁵, Michael Tang⁴, Zeynep Baskurt³, Igor Jurisica⁶, Mohit Kapoor⁵ and Robert Inman⁴, ¹University of Toronto, Toronto, ON, Canada, ²University Heaklth Network, Toronto, ³University Health Network, Toronto, ⁴University Health Network, Toronto, ON, Canada, ⁵Schroeder Arthritis Institute, University Health Network, Toronto, ON, Canada, ⁶University Health Network, Toronto, Canada
Background/Purpose: Exosomes are small extracellular vesicles carrying surface molecules and molecular cargo, including microRNAs (miRNAs), that mediate intercellular communication. Both the exosomal cargo and surface…
Abstract Number: 1754 • ACR Convergence 2025
B3GNT2 Regulates Integrin β3 Glycosylation and Th17/Treg Imbalance in Axial Spondyloarthritis Pathogenesis
Chengchun Geng¹, Dachun Zhuo¹, Jiucun Wang² and Jing Liu¹, ¹Fudan University, Shanghai, Shanghai, China (People's Republic), ²Fudan University, Shanghai, China (People's Republic)
Background/Purpose: The rs6759298 variant near B3GNT2 is associated with Axial Spondyloarthritis (AS); however, its pathogenic mechanisms remain unknown. In this study, we explored the role…
Abstract Number: 1622 • ACR Convergence 2025
Defective CD4+ regulatory T cells in active Takayasu arteritis patients can be improved by efficiency treatment of tofacitinib
jing luo¹ and Lan He², ¹the first affiliated hospital of xi'an jiaotong university, xi'an, China (People's Republic), ²The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China (People's Republic)
Background/Purpose: To investigate the efficacy of tofacitinib (TOF) in patients with active TAK, explore the effect on CD4+ regulatory T cells (Tregs) homeostasis and relationship…
Abstract Number: 1441 • ACR Convergence 2025
Efficacy and Safety of Vunakizumab in Patients with Active Ankylosing Spondylitis by Cigarette Smoking Status: A Post Hoc Analysis of a Randomized, Double-blind, Phase 2/3 Study
Hongbin Li¹ and Huilin Li², ¹Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Nei Mongol, China (People's Republic), ²Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China (People's Republic)
Background/Purpose: Vunakizumab, a humanized anti-interleukin-17A monoclonal antibody, has shown significant efficacy and favorable safety in patients with active ankylosing spondylitis (AS), leading to its approval…
Abstract Number: 1094 • ACR Convergence 2025
Changes in NK cells and TH cell phenotype in Rheumatoid Arthritis patients treated with janus kinase inhibitors: implications for adverse effects
Carmen Lasa Teja¹, Juan José Fernández-Cabero², Alejandra Comins-Boo³, David San Segundo³, Virginia Portilla González⁴, Montserrat Santos-Gomez⁵, José Luis Martín-Varillas⁶, Marcos López-Hoyos³ and Ricardo Blanco⁷, ¹Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain., Riotuerto, Cantabria, Spain, ²Division of Immunology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Cantabria, Spain, ³Division of Immunology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, ⁴Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, ⁵Division of Immunology, Hospital Sierrallana. Santander , Spain, Santander, Spain, ⁶Rheumatology Division, Hospital de Laredo. IDIVAL, Immunopathology Group. Santander, Spain., Laredo, Spain, ⁷Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain, Santander, Cantabria, Spain
Background/Purpose: Janus kinase inhibitors (JAKi) are effective in rheumatoid arthritis (RA); however, concerns regarding safety, particularly the risk of infections and malignancies, have been raised.…
Abstract Number: 0998 • ACR Convergence 2025
Preclinical Characterization of a Novel Bi-specific Antibody Targeting IL-23p19 and IL-36R for The Treatment of Autoimmune Diseases
qianqian yin¹, changqing run¹, kaili liu¹, xueqin cui¹, fanpeng Meng¹, yanru fan¹, yifei yang¹, wei ye¹, Lu Su², yuan lin¹ and cheng liao¹, ¹Jiangsu Hengrui Pharmaceuticals Co., Ltd, Shanghai, China (People's Republic), ²Jiangsu Hengrui Pharmaceuticals, Shanghai, Shanghai, China
Background/Purpose: IL-23 is a pivotal cytokine driving IL-17-mediated inflammation, and its inhibition has shown efficacy in Th17-associated autoimmune diseases. However, patient heterogeneity and compensatory pathways…
Abstract Number: 0993 • ACR Convergence 2025
NOD2 mutations mediate IL-17 predisposition in patients with Blau syndrome
Leah Huey¹, Emily Vance², Bryce Binstadt³ and Ruth Napier², ¹Oregon Health & Science University, Denver, CO, ²University of Colorado Anschutz, Aurora, CO, ³University of Minnesota, Minneapolis, MN
Background/Purpose: Blau syndrome is a pediatric rheumatic disease characterized by dermatitis, arthritis, and uveitis. Blau syndrome is caused by inborn or de novo mutations in…

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