Abstracts tagged "T Cell"

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…
Abstract Number: 0030 • ACR Convergence 2023
A Pathogenetic Model of IgG4-related Disease Developed from Familial IKZF1 and UBR4 Gene Variants
Qingxiang Liu¹, Kenneth Warrington¹, Matthew Koster¹, Cornelia M. Weyand² and Jorg Goronzy¹, ¹Mayo Clinic, Rochester, MN, ²Mayo Clinic School of Medicine and Stanford University, Rochester, MN
Background/Purpose: Most autoimmune diseases are polygenic, frequently with more than 100 gene variants contributing to genetic predisposition. Given this complexity, conclusions on disease mechanisms are…
Abstract Number: 0084 • ACR Convergence 2023
Excess IL-18 Protects from Experimental Autoimmune Encephalomyelitis Mainly via Preferential Augmentation of Suppressor/Regulatory over Autoreactive T-cell Function
Jeremy Morrissette¹, Vinh Dang², Jemy Varghese², Zachary Lanzar¹, Junior Nguyen², Emily Landy³, Anastasia Frank-Kamenetskii⁴ and Scott Canna², ¹University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, ²Children's Hospital of Philadelphia, Philadelphia, PA, ³University of Pittsburgh, Pittsburgh, PA, ⁴CHOP/UPENN, Philadelphia, PA
Background/Purpose: Interleukin 18 (IL-18) is an inflammasome-activated cytokine that canonically amplifies interferon-gamma (IFNg) production and cytotoxicity by CD8 T-cells (CD8Ts) and Th1 CD4 T-cells (CD4Ts).…
Abstract Number: 0692 • ACR Convergence 2023
Behçet’s Disease-Associated TCR in the Eye Points to HLA Class I-Restricted Autoimmunity
Johannes Nowatzky¹, Ziyan Lin², Yesim Ozguler³, Alireza Khodadadi-Jamayran², Didar Ucar⁴, Aristotelis Tsirigos⁵, Gulen Hatemi⁶ and Olivier Manches⁷, ¹NYU Grossman School of Medicine, Department of Medicine, Department of Pathology, Division of Rheumatology, NYU Behçet's Disease Program, NYU Ocular Rheumatology Program, New York, NY, ²NYU Grossman School of Medicine, Applied Bioinformatics Laboratories, New York, NY, ³NYU Grossman School of Medicine, Department of Medicine, Division of Rheumatology and Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Department of Internal Medicine, Division of Rheumatology, New York, NY, ⁴Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Department of Ophthalmology, Istanbul, Turkey, ⁵NYU Grossman School of Medicine, Department of Pathology, Department of Medicine, Institute for Computational Medicine, New York, NY, ⁶Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Department of Internal Medicine, Division of Rheumatology, Istanbul, Turkey, ⁷EFS, Recherche et Développement, Department of Pulmonology and Physiology, CHU Grenoble-Alpes, Université Grenoble-Alpes, INSERM U1209, CNRS UMR, Institute for Advanced Biosciences, Grenoble, France
Background/Purpose: Behçet's disease (BD) is an HLA class I-associated disorder, given its strong link to HLA-B*51. However, evidence of HLA class I restriction is lacking,…
Abstract Number: 1271 • ACR Convergence 2023
Upregulation of IFNγ-Response Genes in Monocytes and T Cells Identified by Single-Cell Transcriptomics in Patients with Anti-CCP Antibody-Positive Rheumatoid Arthritis (RA)
Bong-Ki Hong¹, Sungyong You², Naeun Lee¹, Jung Gon Kim³, Kijun Lee⁴, Ji Hyeon Ju⁵, Wan-Uk Kim¹ and Ho-Youn Kim⁶, ¹The Catholic University of Korea, Seoul, South Korea, ²Cedars-Sinai Medical Center, Los Angeles, CA, ³Inje University Ilsan Paik Hospital, Goyang, South Korea, ⁴YiPSCELL, Secho, South Korea, ⁵Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea, ⁶HoYoun Kim's Clinic for Arthritis Rheumatism, Seoul, South Korea
Background/Purpose: Recent research has revealed a significant upregulation of IFNγ-related genes in RA patients, though the underlying mechanisms and implications are still unclear. To further…
Abstract Number: 2182 • ACR Convergence 2023
Mitochondrial Alterations in Primary Sjögren´s Syndrome
Pavlina Javorova¹, Johannes Fessler¹, Melanie Zeiler¹, Angelika Lackner¹, Josef Hermann², Sabine Zenz³, Jens Thiel⁴ and Martin Stradner¹, ¹Medical University of Graz, Graz, Austria, ²Division of Rheumatology and Immunology, Department of Internal Medicine, Medical University Graz, Graz, Austria, ³Medical University Graz, Graz, Austria, ⁴University Hospital Freiburg, Freiburg, Germany
Background/Purpose: Primary Sjögren's Syndrome (pSS) is a systemic autoimmune disorder characterized by lymphocytic infiltrations in exocrine glands. T-cells are considered major players in the pathogenesis…
Abstract Number: 0066 • ACR Convergence 2023
Mitochondrial Dysfunction and Fatigue in Sjögren’s Disease
Biji T Kurien¹, Rebecca Wood², Gavin Pharaoh³, Joshua Cavett¹, Valerie Lewis¹, Bhaskaran Shylesh¹, Lida radfar¹, Astrid Rasmussen¹, Christopher Lessard¹, A. Darise Farris¹, Kathy Sivils⁴, Kristi Koelsch¹, Holly Van Remmen¹ and R Hal Scofield⁵, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²University of Oklahoma Health Sciences Center, Edmond, OK, ³University of Washington, Seattle, WA, ⁴Janssen Research & Development, LLC, Edmond, OK, ⁵Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK
Background/Purpose: Sjögren's disease (SjD) is a chronic, autoimmune condition with diminished lacrimal and salivary gland secretion leading to keratoconjunctivitis sicca and xerostomia, respectively. In addition,…
Abstract Number: 0086 • ACR Convergence 2023
Optimizing PD-1 Agonist Signaling with Membrane Proximal Binding of Rosnilimab, a Clinical Stage PD-1 Agonist IgG1 Antibody
Stephen Parmley, Benjamin Szylyk, Richard Frank, Matthew Hsu, Polina Brodsky, Cailin Sibley, Paul Lizzul and Martin Dahl, AnaptysBio, San Diego, CA
Background/Purpose: Checkpoint antagonist therapeutics have transformed the field of oncology while advancing the understanding of adequate checkpoint activity in preventing autoimmunity. Checkpoint agonism represents a…
Abstract Number: 0699 • ACR Convergence 2023
T Cell Subset Analysis in Patients with Large-Vessel Vasculitis
Rebecca Kuan¹, Christopher Redmond¹, McKella Sylvester², Mary Maclean¹, Francoise Meylan¹, Marcela Ferrada¹, Kaitlin Quinn¹ and Peter Grayson³, ¹National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ²Colgate University, Bethesda, MD, ³National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Chevy Chase, MD
Background/Purpose: Large-vessel vasculitis (LVV) is characterized by granulomatous inflammation of the aorta and its major branches. The two major forms are giant cell arteritis (GCA)…

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