Abstracts tagged "immunology"

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…
Abstract Number: 0906 • ACR Convergence 2023
Paired Autoantibody Specificities from Serum and Immune Complexes Do Not Fully Explain the Circulating Immune Complex Load in Systemic Lupus Erythematosus: A Study on 530 Patients
Enrico Fuzzi¹, Anna Svanqvist², Christine Westerberg², Agneta Zickert³, Iva Gunnarsson⁴, Johan Rönnelid² and Elisabet Svenungsson⁵, ¹Karolinska University Hospital, Stockholm, Sweden, ²Department of Immunology, Genetics and Pathology, Uppsala University Hospital, Uppsala, Sweden, ³Karolinska University Hospital, Stockholm, Sweden, Stocksund, Sweden, ⁴Karolinska Institutet, Stockholm, Sweden, ⁵Department of Medicine Solna, Unit of Rheumatology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a prototypical autoimmune disease where autoantibody production and immune complex (IC) formation play a key role. Which antibodies contribute…
Abstract Number: 1676 • ACR Convergence 2023
Tofacitinib Accelerates in Vitro Clot Formation and Delays Clot Lysis in Rheumatoid Arthritis Blood by Enhancement of Macrophage TLR4 Mediated Cytokine Responses- a New Angle on Thrombosis with JAKi in Rheumatology
Paula David¹, Thomas Macleod², Yu Shi³, Payal Ganguly¹, Cedric Duval³, Mark Harland¹, Chi Wong¹, Benazir Saleem⁴ and Dennis McGonagle⁵, ¹University of Leeds, Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), Leeds, United Kingdom, ²University of Leeds, Leeds Institute of Rheumatic and Musculoskeletal Medicine, Leeds, United Kingdom, ³Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom, ⁴Leeds Teaching Hospitals NHS Trust, Rheumatology, Chapel Allerton Hospital, Leeds, United Kingdom, ⁵Leeds Biomedical Research Centre, University of Leeds, Leeds, United Kingdom
Background/Purpose: Rheumatoid Arthritis (RA) patients treated with Janus Kinase inhibitors (JAKi) have reportedly higher venous thromboembolism (VTE) risk and atherosclerotic-related complications including myocardial infarction (1).Although…
Abstract Number: 2242 • ACR Convergence 2023
Irrespective of the Number of Erosions at Baseline, Patients with Psoriatic Arthritis Treated with Ixekizumab Show Improved Clinical Outcomes
M. Elaine Husni¹, Vinod Chandran², Jeffrey Lisse³, Rebecca Bolce³, Carlos Diaz³, Baojin Zhu³, Elaine Lui⁴ and Laura Coates⁵, ¹Cleveland Clinic / Department of Rheumatic and Immunologic Diseases, Cleveland, OH, ²Schroeder Arthritis Institute, Krembil Research Institute, University Health Network and Division of Rheumatology, Department of Medicine, University of Toronto, Toronto, ON, Canada, ³Eli Lilly and Company, Indianapolis, IN, ⁴Brightech International, An Everest Clinical Research Company, Somerset, NJ, ⁵University of Oxford, Oxford, United Kingdom
Background/Purpose: Psoriatic arthritis (PsA) is a chronic and progressive disease characterized by high rates of early joint erosions, which have been associated with impaired quality…
Abstract Number: 0040 • ACR Convergence 2023
Non-canonical NF-κB Signalling Is Required for Extrathymic AIRE Expression and Immunoregulatory Molecules in Cells of the Dendritic Lineage
Guus van Laar¹, Leonie Huitema¹, Boy helder¹, Joanna Fergusson¹, Hergen Spits¹, Jan Piet van Hamburg¹ and Sander Tas², ¹Amsterdam University Medical Centers, Amsterdam, Netherlands, ²Amsterdam UMC, locatie AMC, Utrecht, Netherlands
Background/Purpose: The transcription factor Autoimmune Regulator (AIRE) is crucial for the establishment of central tolerance in the thymus. Recently, peripheral CD45+ extrathymic AIRE-expressing cells (eTACs)…
Abstract Number: 0200 • ACR Convergence 2023
Herpes Zoster Prevalence in Patients with Rheumatic Diseases
Rodrigo J. Castillo-de la Garza¹, Jorge A. Esquivel-Valerio², Emmanuel Campos-Tinajero², Anahí Carrazco Chapa³, Gisela García Arellano⁴, Axel A. De Leon-Perez², Pablo Gamez-Siller² and Dionicio A. Galarza-Delgado⁵, ¹Universidad Autónoma de Nuevo León, Monterrey, Mexico, ²Hospital Universitario "Dr. José Eleuterio González", Monterrey, Mexico, ³Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Mexico, ⁴Hospital Universitario "Dr. José Eleuterio González", Monterrey, Mexico, ⁵Hospital Universitario UANL, Monterrey, Mexico
Background/Purpose: Herpes zoster (HZ) is a painful rash that is commonly known as shingles. People that had a primary infection caused by the varicella-zoster virus…
Abstract Number: 0919 • ACR Convergence 2023
Investigating the Role of Interferon in Promoting Flares of SLE at a Single Cell Level
Zoha Faheem¹, Giselle Boukhaled², Kieran Manion¹, Carolina Munoz-Grajales³, Carol Nassar¹, Michael Kim¹, Dafna Gladman⁴, Murray Urowitz⁵, Zahi Touma⁶, David Brooks² and Joan Wither⁷, ¹Schroeder Arthritis Institute, Krembil Research Institute, Toronto, ON, Canada, ²Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada, ³UHN/TWH, Toronto, ON, Canada, ⁴Schroeder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital, Department of Medicine, University of Toronto, Toronto, ON, Canada, ⁵Schroeder Arthritis Institute, Krembil Research Institute; University of Toronto Lupus Clinic; Division of Rheumatology, Toronto, ON, Canada, ⁶University of Toronto, Toronto, ON, Canada, ⁷University Health Network, Toronto, ON, Canada
Background/Purpose: Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease with unpredictable flares interspersed with prolonged periods of disease quiescence. Interferon (IFN) is a hallmark…
Abstract Number: 1689 • ACR Convergence 2023
Deep Cellular Immune Profiling in Psoriatic Arthritis Correlates with Imaging Phenotypes and Response to Targeted Advanced Therapy
Lihi Eder¹, Xianwei Li², Sydney Thib³, Darshini Ganatra⁴, Liqun Diao² and Vinod Chandran⁵, ¹Women’s College Research Institute, Division of Rheumatology, University of Toronto, Toronto, ON, Canada, ²Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, ON, Canada, ³Women’s College Research Institute, Toronto, ON, Canada, ⁴Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON, Canada, ⁵Schroeder Arthritis Institute, Krembil Research Institute, University Health Network and Division of Rheumatology, Department of Medicine, University of Toronto, Toronto, ON, Canada
Background/Purpose: To characterize the relationships between peripheral blood immune cell profiles in patients with psoriatic arthritis (PsA) and (1) baseline clinical and imaging disease features;…
Abstract Number: 2290 • ACR Convergence 2023
Association of Mycophenolate and Azathioprine Use with Cognitive Function in Systemic Lupus Using a Bayesian Longitudinal Item-response Theory Model
Chrisanna Dobrowolski¹, Juan Pablo Diaz Martinez², Michelle Barraclough³, Roberta Kretzmann⁴, Sherief Marzouk⁴, Kathleen Bingham³, Lesley Ruttan⁵, Dorcas Beaton⁶, Joan Wither³, Carmela Tartaglia⁷, Patti Katz⁸, Mahta Kakvan⁹, Nicole Anderson¹⁰, Dennisse Bonilla³ and Zahi Touma⁴, ¹Icahn School of Medicine at Mount Sinai Hospital, New York, NY, ²Schroeder Arthritis Institute, University Health Network, Toronto, ON, Canada, ³University Health Network, Toronto, ON, Canada, ⁴University of Toronto, Toronto, ON, Canada, ⁵University Health Network, Toronto Rehabilitation Institute, Toronto, ON, Canada, ⁶Institute for Work & Health, Toronto, ON, Canada, ⁷Krembil Brain Institute, University Health Network, University of Toronto, Toronto, ON, Canada, ⁸University of California San Francisco, San Rafael, CA, ⁹University Health Network, University of Toronto, Toronto, ON, Canada, ¹⁰Schroeder Arthritis Institute, Krembil Research Institute, University Health Network and University of Toronto, Toronto, ON, Canada
Background/Purpose: Cognitive dysfunction (CD) is a common and often deleterious manifestation of systemic lupus erythematosus (SLE). CD is usually operationalized on the American College of…
Abstract Number: 0048 • ACR Convergence 2023
Monosodium Urate Crystals Activate an Immune Tolerance Program That Restrains the Activation of Inflammatory Signaling in Macrophages During Gout Flares
Mohnish Alishala¹, Stephen Calderon¹, Anyan Chen¹, Monica Guma², Christopher glass¹ and Isidoro Cobo¹, ¹University of California San Diego, San Diego, CA, ²University of California San Diego, La Jolla, CA
Background/Purpose: Gout is the most frequent form of inflammatory arthritis, with episodes of self-resolving acute inflammation in the joint caused by the deposition of monosodium…

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Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. Academic institutions, private organizations and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part a scientific presentation or presentation of additional new information that will be available at the time of the meeting) is under embargo until Saturday, November 11, 2023.

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