Abstracts tagged "Cytotoxic Cells"

Abstract Number: 1748 • ACR Convergence 2022
Deep Immune Profiling of Cytotoxic T Cells (CTL) from Patients with Ankylosing Spondylitis Revealed a Subset of CTL Co-Expressing PD-1 and TIGIT That Resists Immune Exhaustion
Michael Tang¹, Addison Pacheco², Zoya Qaiyum³, Melissa Lim¹ and Robert Inman¹, ¹University Health Network, Toronto, ON, Canada, ²University of Toronto, Toronto, ON, Canada, ³Krembil Research Institute, Toronto, ON, Canada
Background/Purpose: Unresolved, chronic inflammation is a key feature of Ankylosing Spondylitis (AS) yet the immunological events perpetuating remain unclear. The strongest genetic association with AS…
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: 0628 • ACR Convergence 2022
A Positive-feedback Model for the Contribution of Virus-Specific T Cells to the Development of Rheumatoid Arthritis
Hendrik Nel¹, Pascale Wehr², Christopher Andoniou³, Iona Schuster³, Stephanie Gras⁴, Helen McGuire⁵, Helen Weedon⁶, Annabelle Small⁷, Katie Lowe⁷, Mariapia Degli-Esposti³, Mihir Wechalekar⁸ and Ranjeny Thomas⁹, ¹University of Queensland, Brisbane, Australia, Woolloongabba, Australia, ²University of Queensland Diamantina Institute, Brisbane, Australia, ³Infection and Immunity Program and Department of Microbiology, Biomedicine Discovery Institute, Monash, Australia, ⁴Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Australia, ⁵The University of Sydney, Charles Perkins Centre, Camperdown, Australia, ⁶Flinders University of South Australia, Bedford Park, Australia, ⁷Flinders University, Adelaide, Australia, ⁸Flinders Medical Centre, Bedford Park, Australia, ⁹University of Queensland, Brisbane, Australia
Background/Purpose: Rheumatoid Arthritis (RA) is associated with specific HLA-DR genotypes with an emphasis on the role of CD4+ effector-memory T cells (Tem) in disease pathogenesis.…
Abstract Number: 1124 • ACR Convergence 2022
CD4+ Cytotoxic T Lymphocytes (CTL) Are Present in Sjögren’s Disease Minor Salivary Glands and Associate with Markers of Epithelial Cell Damage near Infiltrates
Michelle Joachims¹, Chuang Li¹, Joshua Rusbuldt², Ben Fowler¹, Astrid Rasmussen¹, Kiely Grundahl¹, R. Hal Scofield³, Kathy Sivils⁴, Christopher Lessard¹ and A. Darise Farris¹, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²Janssen Pharmaceutical Companies of Johnson & Johnson, Spring House, PA, ³University of Oklahoma Health Sciences Center, Oklahoma City, OK, ⁴Janssen Research and Development, LLC, Spring House, PA
Background/Purpose: CD4+ T cells dominate focal lymphocytic infiltrates in Sjögren's disease (SjD), but their differentiation states have remained unclear. Here, we used single cell (sc)RNAseq…
Abstract Number: 1560 • ACR Convergence 2022
Modulation of NKG2D Expression on NK, NKT and CD8+ T Lymphocytes by in Vitro Treatments of Immune Cells from Patients with Behçet Disease
Martina Bonacini¹, Francesco Muratore¹, Giovanna Restuccia², Laura Albertazzi², Piera Zaldini², Luca Cimino³, Rossana Colla², Alessandro Zerbini¹, Carlo Salvarani⁴ and Stefania Croci¹, ¹Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy, ²Azienda Unità Sanitaria Locale – IRCCS di Reggio Emilia, Reggio Emilia, Italy, ³Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, University of Modena and Reggio Emilia, Reggio Emilia, Italy, ⁴Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Università di Modena e Reggio Emilia, Reggio Emilia, Italy
Background/Purpose: Behçet disease (BD) is an inflammatory chronic disease characterized by alternation of active and inactive phases. Steroids, Colchine, Azathioprine (Aza) and interferon α are…
Abstract Number: 1702 • ACR Convergence 2022
Targeting CD6-CD318 Axis with UMCD6 (anti-CD6) Enhances in Vivo Killing of Cancer Cells Through Direct Activation of NK Cells
Mikel Gurrea-Rubio¹, Qi Wu¹, Eliza Pei-Suen Tsou¹, M. Asif Amin¹, Phillip Campbell¹, Peggy Randon¹, Matthew Lind¹, Sarah Ory¹, Camila Amarista¹, Sirapa Vichaikul², Jeffrey Ruth¹, Feng Ling³ and David Fox¹, ¹University of Michigan, Ann Arbor, MI, ²Michigan Medicine, Howell, MI, ³Cleveland Clinic, Cleveland, OH
Background/Purpose: Immune checkpoint inhibitors represent a major advance in cancer treatment, but disease prognosis continues to be poor for most patients. Resistance of cancer cells…
Abstract Number: 1704 • ACR Convergence 2022
Interaction of Macrophages and Natural Killer Cells in Pathogenesis of HIV-1-Associated Inflammatory Arthritis
Can Sungur¹, Gao Hongbo¹, Li-ping Yang², Liang Shan¹ and Wayne Yokoyama³, ¹Washington University, St. Louis, MO, ²Washington University in St. Louis, St. Louis, MO, ³Washington University School of Medicine, St. Louis, MO
Background/Purpose: Human immunodeficiency virus (HIV) remains a significant life-threatening agent and burden on public health. Lesser studied and understood aspects of HIV infections include HIV-associated…
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: 0967 • ACR Convergence 2021
Antigen-specific and Bystander Autoreactive T Cell Control in Peripheral Blood of ACPA+ Rheumatoid Arthritis Patients Administered Antigen-specific Tolerising Immunotherapy
Pascale Wehr¹, Ranjeny Thomas², Nishta Ramnoruth³, Swati Patel³, Jamie Rossjohn⁴ and Hugh Reid⁴, ¹University of Queensland Diamantina Institute, Brisbane, Australia, ²University of Queensland, Diamantina Institute, Brisbane, Australia, ³University Of Queensland, Brisbane, Australia, ⁴Monash University, Melbourne, Australia
Background/Purpose: The control of autoreactive T cells in an antigen-specific manner in autoimmune diseases is a major clinical research goal. Various regulatory immune signatures have…
Abstract Number: 0993 • ACR Convergence 2021
The Mechanistic Basis of anti-CD6 as a Novel Form for the Treatment of Autoimmune Diseases and Cancer
Mikel Gurrea-Rubio¹, Jeffrey Ruth¹, Qi Wu¹, Eliza Pei-Suen Tsou¹, Phillip Campbell¹, Peggy Randon¹, M.Asif Amin¹, Nora Singer², Feng Lin³ and David Fox¹, ¹University of Michigan, Ann Arbor, MI, ²The MetroHealth System, Cleveland, OH, ³Cleveland Clinic, Cleveland, OH
Background/Purpose: The use of Immune Checkpoint Inhibitors (ICIs) is limited by the induction of immune-related adverse events. CD6 is expressed by most T lymphocytes and…
Abstract Number: 1772 • ACR Convergence 2021
Autologous EBV-specific Cytotoxic T Cells in Systemic Lupus Erythematosus: An Innovative Phase I/IIa Clinical Trial
Antoine Enfrein¹, Beatrice Clemenceau², Soraya Saiagh³, Céline Bressollette⁴, Zahir Amoura⁵, Henri Vie² and Mohamed Hamidou¹, ¹Médecine interne, CHU de Nantes, Nantes, France, ²Inserm U1232, Université de Nantes, Nantes, France, ³Unité de Thérapie Cellulaire et Génique, CHU de Nantes, Nantes, France, ⁴Laboratoire de Virologie, CHU de Nantes, Nantes, France, ⁵Médecine interne, Hôpital Pitié Salpêtrière, AP-HP, Paris, France
Background/Purpose: Epstein-Barr Virus (EBV) has been suggested as a potential environmental factor in systemic lupus erythematosus (SLE) onset and disease activity. Here, we report the…
Abstract Number: 0449 • ACR Convergence 2020
Cytotoxic T Cells with a Chronic Antigen Exposure Phenotype Drive Immune Checkpoint Inhibitor Sicca
Blake Warner¹, Billel Gasmi², David Kleiner³, Paola Perez Riveros⁴, Daniel Barber⁵, Shunsuke Sakai⁵ and Alan Baer⁶, ¹National Institute of Dental and Craniofacial Research, Bethesda, ²National Cancer Institute, Bethesda, MD, ³National Cancer Institute, Bethesda, ⁴National Institute of Dental and Craniofacial Research, Bethesda, MD, ⁵National Institute of Allergy and Infectious Disease, Bethesda, MD, ⁶Johns Hopkins University School of Medicine, Baltimore, MD
Background/Purpose: Immune checkpoint inhibitors (ICI) have advanced the field of cancer therapeutics. By blocking the negative co-stimulation of T cells, ICI augment the anti-tumor immune…
Abstract Number: 0473 • ACR Convergence 2020
Characterization of DOCK8 as a Novel Gene Associated with Cytokine Storm Syndrome
Mingce Zhang¹, Remy Cron², Devin Absher³, Prescott Atkinson¹, Winn Chatham¹ and Randy Cron¹, ¹University of Alabama at Birmingham, Birmingham, AL, ²University of Alabama at Birmingham, Birmingham, ³HudsonAlpha Institute for Biotechnology, Huntsville, AL
Background/Purpose: Cytokine storm syndrome (CSS), also known as macrophage activation syndrome (MAS) or secondary hemophagocytic lymphohistiocytosis (HLH), is a life threatening condition that commonly presents…
Abstract Number: 0846 • ACR Convergence 2020
MHC Class I Epitopes Derived from Autoantibody Variable Regions, Conjugated to Synthetic Oligodeoxynuleotides, Induce Cytotoxic T Cells That Deplete Autoreactive B Cells and Ameliorate Murine Lupus
Ram Singh¹, ¹UCLA David Geffen School of Medicine, Los Angeles, CA
Background/Purpose: B cell depletion or modulation is emerging as a major treatment modality for autoimmune diseases. However, the current treatments to accomplish this non-specifically target…
Abstract Number: 1443 • ACR Convergence 2020
High-dimensional Analyses of Checkpoint-inhibitor Related Arthritis Synovial Fluid Cells Reveal a Unique, Proliferating CD38hi Cytotoxic CD8 T Cell Population Induced by Type I IFN
Runci Wang¹, Karmela Kim Chan², Amy Cunningham-Bussel¹, Gregory Vitone³, Aidan Tirpack², Caroline Benson², Gregory Keras⁴, Anna Helena Jonsson⁵, Michael Brenner⁵, Laura Donlin⁶, Anne Bass⁷ and Deepak Rao¹, ¹Brigham and Women's Hospital, Boston, MA, ²Hospital For Special Surgery, New York, NY, ³Hospital for Special Surgery, New York, ⁴Brigham and Women’s Hospital, Division of Rheumatology, Inflammation, and Immunity, Boston, MA, ⁵Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁶Hospital for Special Surgery, Weill Cornell Medicine, New York, ⁷Hospital for Special Surgery/Weill Cornell Medicine, New York, NY
Background/Purpose: Checkpoint inhibitors (CI) used to treat cancer frequently trigger immune-related adverse events, including inflammatory arthritis. CI-related arthritis (CIrA) occurs in ~5% of treated patients,…