Abstracts tagged "T Cell"

Abstract Number: 1732 • ACR Convergence 2023
Immunopathogenesis and Preclinical Trials in a Humanized Mouse Model of Rheumatoid Arthritis(RA)
Huiyi Wang¹, Kangkang Luo¹, Shuxin Xu¹, Jiayin Zhou¹, Santi Chen², Jun wang², Wenzhao Li², Jing Zhao¹ and Cunxiang Ju¹, ¹GemPharmatech CO., Ltd., Nanjing, China, ²GemPharmatech LLC, La Jolla, CA
Background/Purpose: The differences between human and mouse immune systems make it challenging to accurately reflect the immunopathogenesis of autoimmune diseases in patients. Therefore, translational research…
Abstract Number: 0078 • ACR Convergence 2023
Circulating CD4+CXCR5+PD-1hi Follicular Helper T Cells Are Elevated in Patients with Rheumatoid Arthritis and Predict Treatment Response to Abatacept or TNF Blockers
Maria-Eugenia Miranda-Carus¹, Beatriz Nieto-Carvalhal¹, Irene Monjo², Mariela Uyaguari-Morocho¹, Alejandro Villalba³, Laura Nuño¹, Diana Peiteado¹, Elisa Fernández¹, Sara García-Carazo¹ and Alejandro Balsa⁴, ¹Hospital Universitario La Paz - IdiPAZ, Madrid, Spain, ²University Hospital La Paz, Madrid, Spain, ³Rheumatology Department, La Paz University Hospital, Madrid, Spain, ⁴Hospital Universitario La Paz, Madrid, Spain
Background/Purpose: CD4+CXCR5+PD-1hi follicular helper (Tfh) T cells dwell in the germinal centers (GCs), help B cells, and are implicated in Rheumatoid Arthritis (RA) pathogenesis. Circulating…
Abstract Number: 0210 • ACR Convergence 2023
Longitudinal T Cell Responses to a Series of Four SARS-CoV-2 Vaccine Doses or COVID-19 in Patients on TNF Inhibitors
Hilde Ørbo¹, Asia-Sophia Wolf², Kristin Hammersbøen Bjørlykke³, Sarah E. Josefsson², Guri Solum², Ingrid Fadum Kjønstad⁴, Ingrid Jyssum¹, Ingrid Christensen¹, Anne Therese Tveter¹, Joseph Sexton¹, Grete B. Kro⁵, Gunnveig Grødeland⁶, Tore Kvien¹, Jørgen Jahnsen³, John Torgils Vaage⁷, Espen Haavardsholm¹, Sella Provan⁸, Hassen Kared⁹, Ludvig A. Munthe⁷, Kristin Kaasen Jørgensen³, Silje Watterdal Syversen¹, Siri Mjaaland² and Guro Goll¹, ¹Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway, ²Norwegian Institute of Public Health, Oslo, Norway, ³Department of Gastroenterology, Akershus University Hospital, Oslo, Norway, ⁴National Institute of Public Health, Oslo, Norway, ⁵Department of Microbiology, Oslo University Hospital, Oslo, Norway, ⁶Department of Immunology, Oslo University Hospital, Oslo, Norway, ⁷Department of Immunology, Oslo University Hospital, Oslo, Norway, ⁸Diakonhjemmet Hospital, Oslo, Norway, ⁹Department of Immunology, Oslo University Hospital, Oslo, Norway
Background/Purpose: T cells are critical for control of viral infection with SARS-CoV-2, but knowledge is lacking on cellular immune responses following repeated vaccination and breakthrough…
Abstract Number: 0929 • ACR Convergence 2023
Persistent Up- or Down-regulation of SOCS1 Exacerbates the Pathogenesis of Systemic Lupus Erythematosus Through Several Mechanisms
Reiko Takahashi and Yoshitaka Imura, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan
Background/Purpose: SOCS1 (suppressor of cytokine signaling 1) is a suppressor molecule of the JAK/STAT pathway and has been reported to be involved in the pathogenesis…
Abstract Number: 1741 • ACR Convergence 2023
The Occurrence and Phenotype of Autoreactive T Cells in the At-Risk Phase of Rheumatoid Arthritis
Sara Turcinov¹, Charlotte de Vries², Ravi Kumar Sharma², Christina Gerstner², Bruno Raposo², Anatoly Dubnovitsky², William Kwok³, Karine Chemin², Vivianne Malmström⁴ and Aase Hensvold⁵, ¹Division of Rheumatology, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet. Theme of Inflammation and Ageing, Medical Unit Gastro, Derma, Rheuma, Karolinska University Hospital, Stockholm, Sweden, ²Division of Rheumatology, Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden, ³Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁴Karolinska Institutet, Stockholm, Sweden, ⁵Division of Rheumatology, Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet. Center for Rheumatology, Academic Specialist Center, Stockholm, Sweden
Background/Purpose: CD4+ T cells recognizing citrullinated epitopes are present in peripheral blood of anti-citrulline protein antibody (ACPA) positive rheumatoid arthritis (RA) patients at time of…
Abstract Number: 0079 • ACR Convergence 2023
CD4 T Cell Repertoire Features in RA Patients with High-risk HLA-DRB1 Alleles
Amit Lakhanpal¹, Kazuyoshi Ishigaki², Anvita Singaraju¹, Alejandro Kochen³, Miriam Fein¹, Soumya Raychaudhuri⁴ and Laura Donlin¹, ¹Hospital for Special Surgery, New York, NY, ²RIKEN, Tokyo, Japan, ³Yale School of Medicine, New Haven, CT, ⁴Brigham and Women's Hospital, Boston, MA
Background/Purpose: A role for CD4 T cells in RA pathology is supported by the effectiveness of T cell therapies, genetic studies implicating T cell gene…
Abstract Number: 0279 • ACR Convergence 2023
Therapeutic Exploration of Immune Checkpoint Inhibitor Induced Inflammatory Arthritis In Vivo
Sang Kim¹, Rene Rico², Naimah Turner², Trupti Trivedi², Theresa Guise² and Roza Nurieva², ¹The Univesrity of Texas MD Andesron Cancer Center, Pearland, TX, ²The University of Texas, MD Anderson Cancer Center, Houston, TX
Background/Purpose: Despite unprecedented clinical success, immune checkpoint inhibitors (ICIs) are associated with immune-related adverse events (irAEs), including arthritis (ICI-arthritis). Management of ICI-arthritis is challenging because…
Abstract Number: 0931 • ACR Convergence 2023
Down-Regulation of Human NADH-Ubiquinone Oxidoreductase Chain 6 by N6-Methyladenosine Methylation Is Associated with Lupus CD4+ T Cell Activation
Miheraiy Abdukiyum¹, Nan Zhao², Yuanyuan Zheng¹, Tohtihan Alim³, Xiaojun Tang¹ and Xuebing Feng², ¹Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital Clinical College, Nanjing University of Chinese Medicine, Nan Jing, China, ²Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital Clinical College, Nanjing University of Chinese Medicine, Nanjing, China, ³Nanjing University, Nanjing, China
Background/Purpose: Recently mitochondria have been recognized as a key player in the pathogenesis of systemic lupus erythematosus (SLE). Given that N6-methyladenosine (m6A) modifications can regulate…
Abstract Number: 1762 • ACR Convergence 2023
Single-cell RNA Sequencing Analysis and Immune Profiling of Antigen-specific T Cells in Patients with Rheumatoid Arthritis and Healthy Controls
JING SONG¹, Cliff Rims¹, Matthew Dufort¹, Peter Linsley¹, Eddie James² and Jane Buckner², ¹Benaroya Research Institute, Seattle, WA, ²Benaroya Research Institute at Virginia Mason, Seattle, WA
Background/Purpose: Single-cell analysis has emerged as a powerful tool for investigating the transcriptomics and T-cell receptor (TCR) diversity in patients with rheumatoid arthritis (RA). However,…
Abstract Number: 0080 • ACR Convergence 2023
Pharmacological Inhibition of PRMT5 Demonstrates Broad Efficacy in Multiple Preclinical Models of Autoimmunity and Inflammation by Suppressing Th1, Th17 and TNF-Mediated Inflammatory Responses
Neha Bhagwat¹, Kumar Penmetsa², Matt Devalaraja³, Suzana Marusic⁴, Cornelia M. Weyand⁵, Shozo Ohtsuki⁶, Peggy Scherle¹ and Kris Vaddi¹, ¹Prelude Therapeutics, Inc, Wilmington, DE, ²Thermo Fisher Scientific, Philadelphia, PA, ³Nipuna Therapeutics, Waltham, MA, ⁴Hooke Laboratories LLC, Lawrence, MA, ⁵Mayo Clinic School of Medicine and Stanford University, Rochester, MN, ⁶Mayo Clinic College of Medicine and Science, Stanford University School of Medicine, Rochester, MN
Background/Purpose: Protein arginine methyltransferase 5 (PRMT5) is the major type II PRMT that catalyzes the formation of symmetrical dimethyl arginine (SDMA) on protein substrates and…
Abstract Number: 0303 • ACR Convergence 2023
Development of a Human Cytotoxic Myoinjury Model with CD8+ T Cells and Muscle Cells Differentiated from Human Induced Pluripotent Stem Cells
Hisanori Hasegawa¹, Soki Kashima², Makoto Otsu³, Hideki Taniguchi⁴ and Shinsuke Yasuda⁵, ¹Department of Rheumatology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU) and Institute of Global Affairs, Tokyo Medical and Dental University (TMDU), Tokyo, Japan, ²Laboratory of Immunology, Institute for Life and Medical Sciences, Kyoto University and Department of Urology, Akita University Graduate School of Medicine, Akita, Japan, ³Division of Hematology, Department of Laboratory Sciences, School of Allied Health Sciences, Kitasato University, Sagamihara, Japan, ⁴Division of Stem Cell Processing/Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, Tokyo, Japan, ⁵Department of Rheumatology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
Background/Purpose: CD8+ cytotoxic lymphocytes (CTLs) play a crucial role in the myoinjury of polymyositis (PM). Nonetheless, conventional treatment for PM depends on high-dose glucocorticoids with…
Abstract Number: 0937 • ACR Convergence 2023
IL-4+ and IFN-α+ Profibrotic T Cells Aggravate Systemic Sclerosis via STIM1/STING Signaling in SKG Mice
Ji Won Yang¹, Kun Hee Lee², Jin Seok Woo², Ha Yeon Jeong², JeongWon Choi², Eui-Jong Kwon¹, Mi-La Cho² and Sung-Hwan Park¹, ¹Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea, ²Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
Background/Purpose: Systemic sclerosis (SS), also known as scleroderma, is a chronic autoimmune disease caused by inflammation, tissue fibrosis, and vasculopathy. Although the pathological mechanisms of…
Abstract Number: 1769 • ACR Convergence 2023
TNF-Stimulated Production of IL-15 by Fibroblast-Like Synoviocytes Mediates Human Resident Memory T Cells Development in Synovial Organoid Model
Margaret Chang¹, Maryrose Hahn², Madison Mangin¹, Brian Wauford¹, Rachel Blaustein³, Lauren Henderson¹, Kevin Wei⁴ and Peter Nigrovic¹, ¹Boston Children's Hospital, Boston, MA, ²Division of Immunology, Boston Children's Hospital, Boston, MA, ³Brigham and Women's Hospital, Boston, MA, ⁴Brigham and Women's Hospital and Harvard Medical School, Boston, MA
Background/Purpose: Rheumatoid arthritis (RA) and juvenile idiopathic arthritis (JIA) are chronic autoimmune diseases that tend to flare repeatedly in the same joints, displaying joint-specific memory.…
Abstract Number: 0081 • ACR Convergence 2023
RA Disease Activity Influence the Frequency and Phenotype of Citrulline Reactive CD4 T Cells in DRB1*04:04 ACPA+ RA Patients
Cliff Rims¹, Anne Hocking¹, Sylvia Posso¹, Bernard Ng², Jeffrey Carlin³, Jane Buckner⁴ and Eddie James⁴, ¹Benaroya Research Institute, Seattle, WA, ²Veteran Affairs, Seattle, WA, ³Virginia Mason Medical Center, Seattle, WA, ⁴Benaroya Research Institute at Virginia Mason, Seattle, WA
Background/Purpose: The presence of ACPA in RA signifies an immune response toward citrullinated auto-antigens in disease pathogenesis and persistence. RA is a T cell mediated…
Abstract Number: 0431 • ACR Convergence 2023
Senescence and Cell Exhaustion in CD4+ and CD8+ Lymphocytes in Rheumatoid Arthritis Patients in Remission Without Treatment
Rodolfo Jiménez-Soto¹, Luis llorente², Guadalupe Lima¹, Luisa Alanis Saenz¹, Amairani Gomez Rodriguez¹, Hilda Marin Lopez¹, Erik Cimé-Aké¹ and Juan Jakez-Ocampo¹, ¹Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico, ²Departamento de Inmunología y Reumatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
Background/Purpose: T cells are important among the several risk factors and immunological markers implicated in rheumatoid arthritis (RA). The goal of this study was to…

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