Abstracts tagged "immunology"

Abstract Number: 1599 • ACR Convergence 2023
Single-Cell RNA Sequencing Reveals Cellular Drivers of UV-mediated Skin Injury in Cutaneous Lupus
Mitra Maz¹, Feiyang Ma², Mehrnaz Gharaee-Kermani², Amanda Victory², Amy Hurst², Johann E. Gudjonsson² and J. Michelle Kahlenberg², ¹University of Michigan Medical School, Ann Arbor, MI, ²University of Michigan, Ann Arbor, MI
Background/Purpose: Ultraviolet light (UV) is a known trigger of cutaneous lupus erythematosus (CLE) flares in systemic lupus erythematosus (SLE) patients, yet cell populations and mechanisms…
Abstract Number: 2105 • ACR Convergence 2023
Cohort-wide Immuno-phenotype Deconvolute Immunological and Clinical Heterogeneity Across Autoimmune Rheumatic Diseases
Hiroaki Tanaka¹, Yukinori Okada², Shingo Nakayamada¹, Yusuke Miyazaki³, Kyuto Sonehara⁴, Shinichi Namba⁵, Suguru Honda⁶, Yuya Shirai⁷, Kenichi Yamamoto⁵, Katsunori Ikari⁸, Masayoshi Harigai⁹, KOSHIRO SONOMOTO¹⁰ and Yoshiya Tanaka¹, ¹University of Occupational and Environmental Health, Kitakyushu, Japan, ²University of Tokyo / Osaka University / RIKEN, Tokyo, Japan, ³The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kiakyusyu Fukuoka, Japan, ⁴University of Tokyo, Tokyo, Japan, ⁵Osaka University, Osaka, Japan, ⁶Tokyo Women's Medical University, Tokyo, Japan, ⁷Osaka University, Suita, Japan, ⁸Tokyo Women's Medical University School of Medicine, Tokyo, Japan, ⁹Tokyo Women's Medical University, Division of Rheumatology, Department of Internal Medicine, Tokyo, Japan, ¹⁰University of Occupational and Environmental Health, Beppu, Japan
Background/Purpose: Autoimmune rheumatic diseases (AIRDs) are systemic but heterogeneous diseases characterized by orchestration of disrupted self-tolerance of immune systems. We face a challenge in characterizing…
Abstract Number: 2564 • ACR Convergence 2023
The Effectiveness of a Fourth Dose of COVID-19 mRNA Vaccine in Patients with Systemic Autoimmune Rheumatic Diseases Using Immunomodulators: An Emulated Target Trial
Jennifer Hanberg¹, Xiaoqing Fu¹, Xiaosong Wang², Naomi Patel¹, Yumeko Kawano², Abigail Schiff², Emily Kowalski², Claire Cook¹, Kathleen Vanni², Krishan Guzzo¹, Grace Qian², Katarina Bade³, Alene Saavedra², Rathnam Venkat², Shruthi Srivatsan¹, Yuqing Zhang⁴, Jeffrey Sparks⁵ and Zachary Wallace⁶, ¹Massachusetts General Hospital, Boston, MA, ²Brigham and Women's Hospital, Boston, MA, ³Brigham and Women's Hospital, Boston, MA, ⁴Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, ⁵Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, ⁶Massachusetts General Hospital, Newton, MA
Background/Purpose: Many patients with systemic autoimmune rheumatic diseases (SARDs) using immunomodulators have blunted humoral responses to COVID-19 vaccines. As such, the initial mRNA vaccine series…
Abstract Number: 0010 • ACR Convergence 2023
A Potential Mechanism for Major Adverse Cardiac Events Associated with JAK Inhibitors: JAK Inhibitor Withdrawal Causes Urokinase Release by Primed STAT Signaling
Sara McCoy¹, Ilya Gurevic² and jacques Galipeau², ¹University of Wisconsin School of Medicine and Public Health, Middleton, WI, ²University of Wisconsin, Madison, WI
Background/Purpose: Sjögren’s Disease (SjD) has high glandular IFNg levels, associated with disease activity and lymphoma risk. We showed that IFNg-stimulated minor salivary gland (SG)-mesenchymal stromal…
Abstract Number: 0092 • ACR Convergence 2023
Multi-omics Immune Profiling of Cytotoxic T Cells from Ankylosing Spondylitis Patients Identified a Subset of Clonally Exapnded CTLs That Evade Immune Exhaustion
Michael Tang¹, Zoya Qaiyum², Melissa Lim¹ and Robert Inman¹, ¹University Health Network, Toronto, ON, Canada, ²Krembil Research Institute, Toronto, ON, Canada
Background/Purpose: Sustained chronic inflammation in the spine and of the sacroiliac joints is a key feature in Ankylosing Spondylitis (AS). A central role of CTL…
Abstract Number: 0838 • ACR Convergence 2023
Infusion of Etanercept into the Peripheral Lymphatics Significantly Reduces Disease Activity in Rheumatoid Arthritis Patients with Inadequate Response to Subcutaneous Injections
Russell Ross¹, Vibeke Strand², Roel Querubin³, John Goldman⁴, Richard Leff⁵, Alexis Melson¹, Pei-Ling Roerig⁶ and Alan Smith⁷, ¹Sorrento Therapeutics, Atlanta, GA, ²Stanford University, Portola Valley, CA, ³Marietta Rheumatology Associates, Marietta, GA, ⁴Northside Hospital, Atlanta, GA, ⁵Kezar Life Sciences, Chadds Ford, PA, ⁶4P Therapeutics, Orlando, FL, ⁷4P Therapeutics, Atlanta, GA
Background/Purpose: The lymphatic system serves as a conduit for transporting immune cells and inflammatory molecules present in arthritic joints to lymph nodes (LN), playing a…
Abstract Number: 1637 • ACR Convergence 2023
IgG-Fc-N-Sialylation and -Galactosylation in Primary Sjögren’s Syndrome (Pss) in Its Potential as Marker of Disease State and Disease Activity
Helena Achten¹, Liselotte Deroo², Kristel De Boeck³, Matthias Jarlborg¹, Tine Decruy¹, Joke Deprez¹, Emilie Dumas¹, Dirk Elewaut⁴ and isabelle peene⁵, ¹Ghent University, Ghent, Belgium, ²Ghent University, Gent, Belgium, ³Ghent University Hospital, Ghent, Belgium, ⁴Ghent University and VIB Center for Inflammation Research, Ghent, Belgium, ⁵University Hospital Ghent, Ghent, Belgium
Background/Purpose: Loss of galactose and sialic acid structures attached to the IgG-Fc-fragment switches the antibody effector function from anti-inflammatory to pro-inflammatory1. This study investigated the…
Abstract Number: 2184 • ACR Convergence 2023
Development of Salivary Gland Organoids to Study Sjögren Syndrome
Loïc Meudec¹, Negaar Goudarzi², Juliette Pascaud³, Fanny Jaulin², Xavier Mariette⁴ and Gaetane Nocturne⁵, ¹CHU Kremlin-Bicêtre, Rheumatology, Le Kremlin-Bicêtre, France, ²INSERM UMR 981, Institut Gustave Roussy, Villejuif, France, Villejuif, France, ³Center for Immunology of Viral Infections and Autoimmune Diseases, INSERM UMR 1184, FHU CARE, Université Paris-Saclay, Le Kremlin-Bicêtre, France, ⁴Université Paris-Saclay, Le Kremlin-Bicêtre, France, ⁵APHP, Le Kremlin-Bicêtre, France
Background/Purpose: Sjögren disease (Sjo) is an autoimmune disease characterized by the infiltration of exocrine glands by immune cells, especially salivary glands (SG). SG epithelial cells…
Abstract Number: 0022 • ACR Convergence 2023
Validation of a Transcriptomic-Based Machine Learning Model to Establish the Endotype of SLE Patients
Erika Hubbard¹, Prathyusha Bachali², Kathryn Kingsmore Allison¹, Amrie Grammer¹ and Peter Lipsky¹, ¹AMPEL BioSolutions, Charlottesville, VA, ²AMPEL BioSolutions, Redmond, WA
Background/Purpose: We previously developed a novel machine learning (ML) pipeline leveraging analysis of gene expression data to identify subsets of SLE patients with common molecular…
Abstract Number: 0094 • ACR Convergence 2023
Granzyme K Elicits a New Pathway for Complement Activation in RA Synovium
Anna Helena Jonsson¹, Carlos Donado², Erin Theisen², Dominique Jones¹, Aparna Nathan³, Fan Zhang⁴, Accelerating Medicines Partnership (AMP): RA/SLE¹, Soumya Raychaudhuri¹ and Michael Brenner², ¹Brigham and Women's Hospital, Boston, MA, ²Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ³Harvard Medical School, Boston, MA, ⁴University of Colorado, Aurora, CO
Background/Purpose: T cells are major drivers of rheumatoid arthritis (RA) pathogenesis. While most research has focused on CD4+ T cells, we have found that CD8+…
Abstract Number: 0900 • ACR Convergence 2023
Complement Deposition on Extracellular Mitochondria Induces Platelet Activation in Vitro
Marina Barguil Macedo and Christian Lood, University of Washington, Seattle, WA
Background/Purpose: Mitochondria are extruded upon cell death and platelet activation, being elevated in several inflammatory conditions, including systemic lupus erythematosus (SLE). Mitochondria are immunogenic, with…
Abstract Number: 1651 • ACR Convergence 2023
Beneficial Effect of Temporary Methotrexate Interruption on B and T Cell Responses upon SARSCoV-2 Vaccination in Patients with Rheumatoid Arthritis or Psoriatic Arthritis
Esther Vicente Rabaneda¹, Pedro Martínez-Fleta², Ana Triguero-Martínez², Emilia Roy³, Miren Uriarte-Ecenarro⁴, Francisco Gutiérrez-Rodríguez⁴, Patricia Quiroga⁴, Ana Romero⁴, Nuria Montes², Laura Esparcia Pinedo², María Aranzazu Alfranca², Rosario Garcia-Vicuna⁵, Francisco Sánchez-Madrid², Isidoro González-Álvaro⁴ and Santos Castañeda⁵, ¹Rheumatology, Hospital Universitario de La Princesa, Madrid, Spain, ²Division of Immunology, Hospital Universitario de La Princesa, Madrid, Spain, ³Division of Internal Medicine, Hospital Universitario de La Princesa, Madrid, Spain, ⁴Division of Rheumatology, Hospital Universitario de La Princesa, IIS-Princesa, Madrid, Spain, ⁵Hospital Universitario de la Princesa, Madrid, Spain
Background/Purpose: Previous published works have raised the concern that methotrexate (MTX) might have a negative effect on immune response upon vaccine administration. At the beginning…
Abstract Number: 2191 • ACR Convergence 2023
Efficacy of anti-CD38 Treatment with Daratumumab in Two Cases of Refractory and Severe Sjogren Disease
Gaetane Nocturne¹, Mathilde di Filippo², Oriane Marmontel², Pascale Chretien¹, Roman Krzysiek¹, François Lifermann³, Nawal Rahal¹, Rakiba Belkhir⁴, Philippe Moulin² and Xavier Mariette⁵, ¹APHP, Le Kremlin-Bicêtre, France, ²Hospices Civils de Lyon, Lyon, France, ³Department of Internal Medicine, Centre Hospitalier de Dax, Dax, France, ⁴Rheumatology Department, Université Paris-Saclay, INSERM U1184, Hôpital Bicêtre, APHP, FHU CARE, Le Kremlin-Bicêtre, France, ⁵Université Paris-Saclay, Le Kremlin-Bicêtre, France
Background/Purpose: Sjögren's disease (Sjo) is a systemic autoimmune disease. In 80% of the patients, Sjo is responsible for dryness, fatigue, and joint pain. In 10%…
Abstract Number: 0032 • ACR Convergence 2023
Quantification of the Escape from X Chromosome Inactivation with the Million Cell-scale Human Blood Single-cell RNA-seq Datasets Reveals Heterogeneity of Escape Across Immune Cells and Escape in the Autoimmune Disease Conditions
Yoshihiko Tomofuji¹, Ryuya Edahiro¹, Yuya Shirai¹, Kyuto Sonehara², Qingbo Wang¹, Atsushi Kumanogoh¹ and Yukinori Okada³, ¹Osaka University, Suita, Japan, ²University of Tokyo, Tokyo, Japan, ³University of Tokyo / Osaka University / RIKEN, Tokyo, Japan
Background/Purpose: Understanding the differences in the immune system between sexes is important to elucidate the pathogenesis of autoimmune diseases which are more prevalent in females…
Abstract Number: 0105 • ACR Convergence 2023
Characterization of B-Cell Subsets in Antiphospholipid Syndrome Patients: Implications for Disease Phenotype and Pathogenesis
Yin Long¹, Jiuliang zhao², Mengtao Li² and Xiaofeng Zeng², ¹Peking Union Medical College Hospital Department of Rheumatology and Clinical Immunology, Beijing, China, ²Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
Background/Purpose: Primary antiphospholipid syndrome (PAPS) is an autoimmune disorder characterized by the presence of pathogenic autoantibodies. The key immune cell subsets change in PAPS patients…

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