Abstracts tagged "T Cell"

Abstract Number: 1146 • ACR Convergence 2022
Genetic Interactions Between T-Cell Receptor Polymorphisms and HLA Amino Acids Contribute to the Risk of Rheumatoid Arthritis
Chuan Fu Yap¹, Paul Martin², Darren Plant¹, John Bowes¹, Kazuyoshi Ishigaki³, Saori Sakaue⁴, Alex Macgregor⁵, Suzanne Verstappen¹, Anne Barton¹, Soumya Raychaudhuri⁶ and Sebastien Viatte¹, ¹The University of Manchester, Manchester, United Kingdom, ²The University of Manchester, Oberhaching, Germany, ³Riken, Bunkyo-ku, Tokyo, Japan, ⁴Broad Institute of Harvard and MIT, Cambridge, MA, ⁵The University of East Anglia, Norwich, United Kingdom, ⁶Brigham and Women's Hospital, Boston, MA
Background/Purpose: Rheumatoid arthritis (RA) genetic susceptibility has been well studied with five amino acid positions within the HLA explaining most of the association. Although genome…
Abstract Number: 1732 • ACR Convergence 2022
Novel Human Class II MHC Tetramers Detect Rare, Self-Reactive CD4+ T Cells Relevant to Mixed Connective Tissue Disease
Shawn Mahmud, Thamotharampillai Dileepan, Bryce Binstadt and Marc Jenkins, University of Minnesota, Minneapolis, MN
Background/Purpose: Nearly all patients with mixed connective tissue disease (MCTD) have IgG autoantibodies (autoAb) specific for U170k, a component of the U1-snNRP spliceosomal complex. A…
Abstract Number: 2027 • ACR Convergence 2022
Labial and Parotid Salivary Gland Histopathology in Primary Sjögren’s Syndrome
Uzma Nakshbandi¹, Martha S. van Ginkel¹, Silvia Liefers², Hendrika Bootsma², Fred Spijkervet², Arjan Vissink¹, Bert van der Vegt¹ and Frans Kroese², ¹University Medical Center Groningen, University of Groningen, Groningen, Netherlands, ²University Medical Center Groningen, Groningen, Netherlands
Background/Purpose: Salivary gland involvement is a hallmark of disease in primary Sjögren's syndrome (pSS). This is reflected by the prominent role of a positive biopsy…
Abstract Number: 0566 • ACR Convergence 2022
SARS-CoV-2-Specific T Cell Responses in Multisystem Inflammatory Syndrome in Children
Ki Pui Lam¹, Marcos H. Chinas², Amélie M. Julé², Maria Taylor³, Mary Beth F. Son¹, Janet Chou², Jane W. Newburger⁴, Adrienne G. Randolph⁵, Maria Gutierrez-Arcelus² and lauren henderson¹, ¹Division of Immunology, Boston Children's Hospital, Boston, MA, ²Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, ³Division of Immunology, Boston Children's Hospital, Brighton, MA, ⁴Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, ⁵Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA
Background/Purpose: Multisystem inflammatory syndrome in children (MIS-C) develops about a month after SARS-CoV-2 infection and this delayed presentation suggests a role for the adaptive immune…
Abstract Number: 1164 • ACR Convergence 2022
Expanded CD8+ T Cell Clones from HLA-B*27-positive Patients with Spondyloarthritis Show Signs of Antigen-experience
Judith Rademacher¹, Katharina Deschler², Sonja Lacher², Alina Huth², Markus Utzt², Stefan Krebs², Helmut Blum², Eduardo Beltrán², Klaus Dornmair² and Denis Poddubnyy³, ¹Charité Universitätsmedizin Berlin, Berlin, Germany, ²Laboratory for Functional Genome Analysis (LAFUGA), Gene Center of the LMU Munich, Munich, Germany, ³Department of Gastroenterology, Infectious Diseases and Rheumatology, Charité – Universitätsmedizin Berlin, Berlin, Germany
Background/Purpose: Spondyloarthritis (SpA) is strongly associated with HLA-B27. The arthritogenic antigen hypothesis assumes the existence of specific peptides presented by risk-conferring HLA-B27 alleles to antigen-specific…
Abstract Number: 1733 • ACR Convergence 2022
Granzyme K Elicits a New Pathway for Complement Activation in RA Synovium
Anna Jonsson¹, Carlos Donado², Emma Gomez-Rivas¹ and Michael Brenner³, ¹Brigham and Women's Hospital, Boston, MA, ²Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ³Brigham and Women's Hospital, Harvard Medical School, Boston, MA
Background/Purpose: T cells are major drivers of rheumatoid arthritis (RA) pathogenesis. Most research has focused on CD4 T cells, but we have found that CD8+…
Abstract Number: 2037 • ACR Convergence 2022
Childhood-onset Sjögren’s Syndrome Is Characterised by Dysregulated of B and T Memory Cell Frequencies: A Pilot Immunophenotyping Analysis of This Rare Disease Phenotype
Lucia Martin-Gutierrez¹, Hannah Peckham², Anna Radziszewska², Junjie Peng², Oluwatomisin Nettey², Elizabeth Jury³ and Coziana Ciurtin⁴, ¹Centre for Rheumatology Research, Department of Medicine,University College London, London, ²Centre for Adolescent Rheumatology Versus Arthritis, Department of Medicine, University College London, London, ³University College London, London, United Kingdom, ⁴Centre for Adolescent Rheumatology Versus Arthritis, Department of Medicine, University College London, London, United Kingdom
Background/Purpose: Sjögren's syndrome (SS) is an autoimmune rheumatic disease characterised by dryness resulting from chronic lymphocytic infiltration of the exocrine glands and extra glandular manifestations…
Abstract Number: 0569 • ACR Convergence 2022
Cytokine Storm Susceptibility Factors IL-18 and Cytotoxic Impairment Converge on Pathologic CD8 T-cell Hyperactivation
Emily Landy¹, Scott Canna², Paul Tsoukas³, Vinh Dang² and Jemy Varghese², ¹University of Pittsburgh, Pittsburgh, PA, ²Children's Hospital of Philadelphia, Philadelphia, PA, ³The Hospital for Sick Children, Toronto, ON, Canada
Background/Purpose: Mounting evidence suggests partial defects in cytotoxicity-related genes may promote hyperinflammation in Macrophage Activation Syndrome (MAS) patients, who uniformly have highly-elevated IL-18. In mice,…
Abstract Number: 1167 • ACR Convergence 2022
Towards an Autologous 3D Skin-like Tissue Harboring Patient-Derived Fibroblasts, Keratinocytes, T-cells and Macrophages
Sasha Shenk¹, Jonathan Garlick¹, Lev Brown², Jamie Riesenberg², Christian Evans², Julia Jaffe Zweifach², Andrew Macklin², Tamar Abel³, Noelle Kosarek⁴, Mengqi Huang⁵, Avi Smith¹, Tammara Wood³, Gretel Torres⁶, Patricia pioli⁶ and Michael Whitfield⁷, ¹Tufts University School of Dental Medicine, Boston, MA, ²Tufts University, Boston, MA, ³Dartmouth College, Hanover, NH, ⁴Dartmouth Geisel School of Medicine, Lebanon, NH, ⁵University of Pittsburgh, Pittsburgh, PN, ⁶Geisel School of Medicine at Dartmouth, Lebanon, NH, ⁷Dartmouth Geisel School of Medicine, Department of Biomedical Data Science, Lebanon, NH
Background/Purpose: Scleroderma (Systemic Sclerosis; SSc) is an autoimmune disease of unknown etiology that is characterized by vascular dysfunction, fibrosis, and inflammation. A lack of human…
Abstract Number: 1734 • ACR Convergence 2022
Identification of Sjögren’s Disease-Associated T Cell Receptors Through Deep Sequencing and Single-Cell Transcriptomics
Ananth Aditya Jupudi¹, Michelle Joachims¹, Christina Lawrence¹, Charmaine Lopez-Davis¹, Bhuwan Khatri¹, Astrid Rasmussen¹, Lida Radfar², Kiely Grundahl¹, R. Hal Scofield², Judith James¹, Joel Guthridge¹, Christopher Lessard¹, Linda F. Thompson¹ and A. Darise Farris¹, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²University of Oklahoma Health Sciences Center, Oklahoma City, OK
Background/Purpose: Sjögren's disease (SjD) is a chronic rheumatic autoimmune disorder that primarily targets the lacrimal and salivary glands (SG) resulting in dry eyes and dry…
Abstract Number: 2042 • ACR Convergence 2022
Sjögren’s Disease and Mitochondrial Function
Biji T Kurien¹, Pharaoh Gavin², Joshua Cavett¹, Valerie Lewis³, Ambre Chambers¹, Bhaskaran Shylesh⁴, Anjum Juvaria¹, Brittany Karfonta¹, Lida Radfar¹, Astrid Rasmussen⁴, Christopher Lessard⁴, Darise Farris⁴, Kathy Sivils⁵, Kristi A Koelsch⁴, Holly Van Remmen⁴ and R. Hal Scofield¹, ¹University of Oklahoma Health Sciences Center, Oklahoma City, OK, ²University of Washington, Seattle, WA, ³Veterans Affairs Medical Center, Oklahoma City, OK, ⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁵Janssen Research and Development, LLC, Spring House, PA
Background/Purpose: Sjögren's disease (SjD) is a chronic inflammatory, autoimmune disorder with reduced lacrimal/salivary gland secretion resulting in keratoconjunctivitis sicca and xerostomia, respectively. Also, SjD patients…
Abstract Number: 0600 • ACR Convergence 2022
Correlates Between Rheumatoid Arthritis Clinical Factors and Synovial Cell Phenotypes: Data from the Accelerated Medicines Partnership
Dana Weisenfeld¹, Fan Zhang², Laura Donlin³, Anna Jonsson¹, William Apruzzese¹, Debbie Campbell⁴, Ellen Gravallese⁵, Larry Moreland⁶, Susan Goodman³, Michael Brenner⁵, Soumya Raychaudhuri¹, Andrew Filer⁷, Jennifer Anolik⁸, Vivian Bykerk³ and Katherine Liao¹, ¹Brigham and Women's Hospital, Boston, MA, ²University of Colorado, Aurora, CO, ³Hospital for Special Surgery, New York, NY, ⁴University of Rochester, Rochester, ⁵Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ⁶University of Colorado, Denver, CO, ⁷University of Birmingham, Birmingham, United Kingdom, ⁸University of Rochester Medical Center, Rochester, NY
Background/Purpose: Prior studies have characterized the diverse cell types in the RA synovium through a multi-center consortium incorporating RNA-seq data. Due to the novelty of…
Abstract Number: 1174 • ACR Convergence 2022
Cellular Immunotherapy for Systemic Sclerosis
Chanhyuk Park¹, Rajan Bhandari², Jason Gunn³, Timothy Sullivan², Gretel Torres², Joana Murad³, Michael Whitfield⁴ and Patricia Pioli², ¹Geisel School of Medicine at Dartmouth, West Lebanon, NH, ²Geisel School of Medicine at Dartmouth, Lebanon, NH, ³Celdara Medical, Lebanon, ⁴Geisel School of Medicine, Lebanon, NH
Background/Purpose: Pro-fibrotic macrophages (MØs) are implicated in the pathogenesis of systemic sclerosis (SSc). In prior work, we and others have shown that MØs derived from…
Abstract Number: 1735 • ACR Convergence 2022
Clonally Expanded Cytotoxic CD8+ T Cells Recognize Citrullinated Antigens in ACPA+ Rheumatoid Arthritis
Jae-Seung Moon¹, Shady Younis², Orr Sharpe², Navin Rao³, Julie Carman³, Eddie James⁴, Jane Buckner⁴, Kevin D Deane⁵, Michael Holers⁶, Laura Donlin⁷, Mark Davis² and William Robinson⁸, ¹Stanford University, Palo Alto, CA, ²Stanford University, Stanford, CA, ³Janssen Research and Development, LLC, Spring House, PA, ⁴Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁵University of Colorado Denver Anschutz Medical Campus, Denver, CO, ⁶Department of Medicine Division of Rheumatology, Aurora, CO, ⁷Hospital for Special Surgery, New York, NY, ⁸Stanford University School of Medicine, Palo Alto, CA
Background/Purpose: Rheumatoid arthritis (RA) is a systemic autoimmune disease associated with MHC polymorphisms. The shared epitope polymorphism in MHC class II genes is by far…
Abstract Number: 2096 • ACR Convergence 2022
Role of Cell-Bound Complement Fragments as Biomarkers to Determine Disease Activity in Patients with Systemic Lupus Erythematosus
Marcela Muñoz Urbano¹, Diana C. Quintero-González¹, Mauricio Rojas², Joaquín Rodelo¹, Alba Luz León Álvarez¹, Luis Gonzalez¹ and Gloria Vásquez³, ¹Universidad de Antioquia, Medellín, Colombia, ²Grupo de Inmunología Celular e Inmunogenética, GICIG, and Unidad de citometría de flujo, Sede de Investigación Universitaria, Universidad de Antioquia, Medellín, Colombia, ³Grupo de Inmunología Celular e Inmunogenética, GICIG and Grupo de Reumatología, Universidad de Antioquía, Medellín, Colombia
Background/Purpose: The prompt identification of patients with systemic lupus erythematosus (SLE) at risk of or in flare strongly influences the prognosis of the disease. Cell-bound…

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