Abstracts tagged "T Cell"

Abstract Number: 0073 • ACR Convergence 2024
Self or Bacteria-reactive Th17 Expand from Conventional and Regulatory T Cells in Parabacteroides Goldsteinii Gnotobiotic Arthritic SKG Mice, in Context of Interferon-driven Synovial Inflammatory Macrophages and Reduced Bacterial Immune Regulation
Benjamin Cai¹, Zewen Kelvin Tuong², Mark Morrison¹, Anne-Sophie Bergot¹ and Ranjeny Thomas³, ¹Frazer Institute, University of Queensland, Brisbane, Australia, ²Child Health Research Centre, University of Queensland, South Brisbane, Queensland, Australia, ³University of Queensland, Brisbane, Australia
Background/Purpose: In ankylosing spondylitis, spondyloarthritis (SpA) is often associated with gut inflammation. The strong genetic association with HLA-B27 and expanded CD8 TCR public clonotypes implicate…
Abstract Number: 0874 • ACR Convergence 2024
Defining a Protective Role for Mucosal-associated Invariant T (MAIT) Cells in Spontaneous Cutaneous Lupus Erythematosus
Grace Crossland¹, Lindsay Mendyka², Michael Constantinides³ and Sladjana Skopelja-Gardner¹, ¹Dartmouth Geisel School of Medicine, Lebanon, NH, ²Dartmouth Hitchcock Memorial Hospital, Lyme, NH, ³Scripps Research Institute, San Diego, CA
Background/Purpose: Systemic lupus erythematosus (SLE) is a leading cause of death in young females, and 70-85% of patients experience skin disease (cutaneous LE, CLE). The…
Abstract Number: 1661 • ACR Convergence 2024
Rheumatoid Arthritis Synovial Fibroblast Modulation of T Cell Activation
Melissa Romoff¹, Daniel Ramirez², Edward Dicarlo³, Susan Goodman⁴, Alexander Rudenska⁵, Laura Donlin¹ and Melanie Smith¹, ¹Hospital for Special Surgery, New York, NY, ²Hospital for Special Surgery, Cartago, Costa Rica, ³Hospital for Special Surgery, Weill Cornell Medicine, New York, NY, ⁴Hospital for Special Surgery, New York 10025, NY, ⁵Memorial Sloan Kettering Cancer Center, New York, NY
Background/Purpose: In the rheumatoid arthritis (RA) joint, resident synovial fibroblasts (FLS) interact with infiltrating leukocytes. We previously identified a population of sublining FLS responsive to…
Abstract Number: 1840 • ACR Convergence 2024
Synovial Resident Memory T Cell Formation During Inflammation Requires Cell Contact with Fibroblast-Like Synoviocytes
Yusuke Miyashita¹, Yang Yang¹, Madison Mangin¹, Maryrose Hahn², Kevin Wei³, Peter Nigrovic⁴ and Margaret Chang¹, ¹Boston Children's Hospital, Boston, MA, ²Boston Children's Hospital, Georgetown, MA, ³Brigham and Women's Hospital at Harvard Medical School, Boston, MA, ⁴Boston Children's Hospital, Brookline, MA
Background/Purpose: Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by recurrent inflammation in the same joints, a feature termed joint-specific memory. We previously demonstrated…
Abstract Number: 1858 • ACR Convergence 2024
Co-modification of Citrullinated Proteins with Malondialdehyde-Acetaldehyde Leads to Amplified T Cell Responses and Increased Disease-specific Autoantibody Concentrations
Breanna Butler¹, Wenxian Zhou², Michael Duryee¹, Nozima Aripova¹, Engle Sharp¹, Carlos Hunter¹, Bridget Kramer¹, Harlan Sayles¹, James O'Dell¹, Geoffrey Thiele¹, Bryant England¹, Joshua Baker³, Andreas Reimold⁴, Gail Kerr⁵ and Ted Mikuls¹, ¹University of Nebraska Medical Center, Omaha, NE, ²University of Nebraska Medical Center, Bellevue, NE, ³University of Pennsylvania, Philadelphia, PA, ⁴Dallas VA Medical Center, Dallas, TX, ⁵Washington DC VAMC/Georgetown and Howard Universities, Washington, DC
Background/Purpose: Anti-citrullinated protein antibody (ACPA) is highly specific to rheumatoid arthritis (RA). Beyond citrullination, other post-translational protein modifications including malondialdehyde-acetaldehyde (MAA) are targeted by T…
Abstract Number: 2427 • ACR Convergence 2024
Anti-CD19 Chimeric Antigen Receptor T Cell Therapy Induces Multicompartmental B Cell Depletion in Peripheral Blood, Bone Marrow and Lymph Nodes of Systemic Lupus Erythematosus
Ioanna Minopoulou¹, Olaf Penack², Fredrik Albach¹, Artur Wilhelm³, Arnd Kleyer⁴, Dominic Borie⁵, Vincent Casteleyn¹, Robert Biesen¹, Philipp Enghard⁶, Thomas Dörner⁷, Norman Drzeniek⁸, Jan Zernicke¹, Tobias Alexander³, Kamran Movassaghi², Marie Luise Hütter-Krönke⁹, Eva Schrezenmeier⁶, Adrian Schreiber¹⁰, udo schneider¹, Lars Bullinger¹¹, Gerhard Krönke¹² and David Simon¹³, ¹Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany, Berlin, Germany, ²Department of Hematology, Oncology and Tumor Immunology, Charité University Medicine Berlin, Campus Virchow Klinikum, Berlin, Germany, Berlin, Germany, ³Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany/ Deutsches Rheuma-Forschungszentrum Berlin, Berlin, Germany, Berlin, Germany, ⁴Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany/ Department of Internal Medicine 3, University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany/ Deutsches Zentrum für Immuntherapie (DZI), University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany, Berlin, Germany, ⁵Kyverna Therapeutics, Inc., Emeryville, CA, ⁶Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin, Berlin, Germany/ Deutsches Rheuma-Forschungszentrum Berlin, Berlin, Germany, Berlin, Germany, ⁷Department of Medicine, Rheumatology and Clinical Immunology,Charite Universitätsmedizin Berlin, Germany and DRFZ, Berlin, Berlin, Germany, ⁸Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany/ Berlin Institute of Health at Charité-Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Berlin, Germany/ Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Berlin-Brandenburg School for Regenerative Therapies (BSRT), Berlin, Germany/Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Medical Immunology, Berlin, Germany, Berlin, Germany, ⁹Department of Hematology, Oncology and Cancer Immunology, Charité University Medicine Berlin, Campus Steglitz, Berlin, Germany, Berlin, Germany, ¹⁰Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin, Berlin, Germany, Berlin, Germany, ¹¹Department of Hematology, Oncology and Tumor Immunology, Charité University Medicine Berlin, Campus Virchow Klinikum, Berlin, Germany/ Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany, Berlin, Germany, ¹²Rheumatology, Charité, Berlin, Germany, ¹³Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany/ Department of Internal Medicine 3, University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany/Deutsches Zentrum für Immuntherapie (DZI), University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany, Berlin, Germany
Background/Purpose: Anti-CD19 chimeric antigen receptor (CAR) T cells have emerged as a promising therapeutic option for treatment-refractory patients with B cell-mediated diseases such as systemic…
Abstract Number: 0082 • ACR Convergence 2023
A VAV1-Directed Molecular Glue Degrader, MRT-6160, Reduces Joint Inflammation in a Collagen-Induced Arthritis Autoimmune Disease Model
Adam Cartwright¹, Foram Desai², Sophia Nguyen², Alexandra Trouilloud², Elisa Liardo¹, Daric Wible², Ilaria Lamberto², Bradley Demarco², Chris King², Debora Bonenfant¹, Sharon Townson², Owen Wallace², Filip Janku², Laura McAllister¹, Alison Paterson² and Marisa Peluso², ¹Monte Rosa Therapeutics, Basel, Switzerland, ²Monte Rosa Therapeutics, Boston, MA
Background/Purpose: VAV1 is a member of the VAV family of guanine nucleotide exchange factors (GEFs) and plays a critical role in mediating T- and B-cell…
Abstract Number: 0455 • ACR Convergence 2023
Rosnilimab, a Novel PD-1 Agonist Monoclonal Antibody, Inhibits Peripheral T Cell Proliferation and Cytokine Secretion and Reduces Circulating PD-1 High Expressing CD4 and CD8 T Cells: Results from a Phase 1 Healthy Volunteer Clinical Trial
Kenneth Luu, Martin Dahl, Eric Hare, Cailin Sibley, Paul Lizzul and Bruce Randazzo, AnaptysBio, San Diego, CA
Background/Purpose: PD-1 pathway mutations increase human susceptibility to multiple autoimmune diseases, and insufficient PD-1 signaling can lead to dysregulated T cell responses. By targeting natural…
Abstract Number: 1159 • ACR Convergence 2023
Expanded Cytotoxic CD8+ T Cell Clones Characterize the Blood of Inclusion Body Myositis Patients
Miriam Fein¹, Laura Donlin¹, David Fernandez¹ and Lorien Shakib², ¹Hospital for Special Surgery, New York, NY, ²Weill Cornell Medicine, New York, NY
Background/Purpose: Inclusion body myositis (IBM) is an inflammatory myopathy, characterized by CD8+ T cell infiltration of muscle and patients present with progressive muscle weakness and…
Abstract Number: 2136 • ACR Convergence 2023
Arthritogenic Cells Found in the Peripheral Blood of Rheumatoid Arthritis Patients Transfer the Disease to NSG-DR4 Mice
Janine Rupp¹, Johannes Fessler², Silvia Hayer³, Barbara Dreo⁴, Angelika Lackner², Patrizia Fasching², Wolfgang Helmberg², Peter Schlenke², Jens Thiel⁵, Guenter Steiner⁶, Cornelia M. Weyand⁷ and Martin Stradner², ¹Medical University Graz, Rochester, MN, ²Medical University of Graz, Graz, Austria, ³Medical University of VIenna, Vienna, Austria, ⁴Division of Rheumatology and Immunology, Medical University of Graz, Graz, Austria, ⁵University Hospital Freiburg, Freiburg, Germany, ⁶Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria, ⁷Mayo Clinic School of Medicine and Stanford University, Rochester, MN
Background/Purpose: T cells play an important role in the genesis of rheumatoid arthritis (RA). HLA class II genes, such as HLA-DRB1*0401 (HLA-DR4), confer the strongest…
Abstract Number: 0013 • ACR Convergence 2023
A Proliferating T Cell Signature in Blood Is Associated with Response to JAK Inhibitor Therapy in Rheumatoid Arthritis Patients
Mehreen Elahee¹, Kathryne Marks², Ifeoluwakiisi Adejoorin², Lin Chen², Derrick Todd², Jonathan Coblyn², Elena Massarotti², Susan Ritter², Michael Weinblatt³, Daniel Solomon⁴ and Deepak Rao², ¹University of Pittsburgh Medical Center, Pittsburgh, PA, ²Brigham and Women's Hospital, Boston, MA, ³Harvard Medical School, Waban, MA, ⁴Brigham and Women's Hospital, Newton, MA
Background/Purpose: There are multiple DMARDs available to treat rheumatoid arthritis (RA) yet there are no widely used predictive biomarkers to guide selection of a specific…
Abstract Number: 0083 • ACR Convergence 2023
Expression of mRNA Vaccine Antigen in Hematopoietic Cells Is Necessary for Induction of Optimal Vaccine-Specific CD4+ T Cell Responses
Julia Rood¹, Stephanie Suh Kyung Yoon², Mary O’Mara³, Mary Kate Heard³, Chaitali Bhadiadra³, Nhu Le³, Christabel Ameyaw Baah³, Norbert Pardi⁴ and Laurence Eisenlohr¹, ¹Children's Hospital of Philadelphia, Philadelphia, PA, ²School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, ³Children's Hospital of Philadelphia, Philadelphia, PA, ⁴Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
Background/Purpose: mRNA vaccines are safe and remarkably effective, but rare cases of vaccine-induced autoimmunity have been reported, particularly in patients with underlying inflammatory disease. Mechanistic…
Abstract Number: 0602 • ACR Convergence 2023
Dual Blockade of ICOS and CD28 with Acazicolcept (ALPN-101) Reveals Non-Redundant Roles of T Cell Co-Stimulation Pathways in Systemic Lupus Erythematosus
Elizabeth Repash, Tiffany Blair, Amanda Enstrom, Lawrence Evans, Susan Debrot, Katherine Lewis, Armand Bankhead, Stanford Peng and Stacey Dillon, Alpine Immune Sciences, Inc., Seattle, WA
Background/Purpose: CD28 and inducible T cell costimulator (ICOS) play nonredundant roles in T cell activation and inhibiting these pathways can ameliorate an (auto)immune response. Systemic…
Abstract Number: 1250 • ACR Convergence 2023
Local Inflammatory Response Mediated by the Homing of Tfh17 Cells Is Involved in Tissue Injury of Immunoglobulin a Vasculitis
Xiaoxue Ma, Qinglian Jiang and Xuyang Chi, The First Hospital of China Medical University, Shenyang, China
Background/Purpose: Immunoglobulin A vasculitis (IgAV), also named Henoch–Schönlein purpura, is a systemic vasculitis characterized by the deposition of IgA1-dominant immune complexes in small vessels that…
Abstract Number: 2176 • ACR Convergence 2023
Cellular and Proteomic Changes Following Administration of Peresolimab, in a Phase 2a Trial in Rheumatoid Arthritis
Robert J. Benschop¹, Jay Tuttle¹, Paul Emery², Christoph Preuss¹, Mark Daniels¹, Veavi Ching-Yun Chan¹, Pia Yachi¹ and Ajay Nirula¹, ¹Eli Lilly and Company, Indianapolis, IN, ²Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
Background/Purpose: Peresolimab is a humanized immunoglobulin G1 monoclonal antibody that stimulates human programmed cell death protein 1 (PD-1). Peresolimab demonstrated superiority to placebo in Disease…

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