Abstracts tagged "T cells"

Abstract Number: 38 • 2018 ACR/ARHP Annual Meeting
Pre-Clinical Clonally-Expanded aggrecan89-103–Specific CD4+ T Cells Are a Target for Autoimmune Arthritis Prevention
Pascale Wehr¹, Hendrik Nel¹, Soi Cheng Law¹, Diahann Jansen¹, Nicole La Gruta², Hugh Reid², Jamie Rossjohn² and Ranjeny Thomas¹, ¹University of Queensland Diamantina Institute, Translational Research Institute, Woolloongabba, Australia, ²Infection and Immunity Program, Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Australia
Background/Purpose: In the pre-clinical rheumatoid arthritis (RA) prodrome, autoantibodies and transient symptoms may develop. Pre-clinical autoantibody development suggests concomitant expansion of autoantigen-specific CD4+ follicular helper…
Abstract Number: 147 • 2018 ACR/ARHP Annual Meeting
T Follicular Helper Cell Phenotype in RA Patients Receiving Rituximab
Betty Hsiao¹, Jin-Young Choi² and Joseph E. Craft³, ¹Yale University School of Medicine, New Haven, CT, ²Section of Rheumatology, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, ³Department of Internal Medicine/Rheumatology, Yale University School of Medicine, New Haven, CT
Background/Purpose: B and T cells contribute to tissue injury in rheumatoid arthritis (RA). Rituximab (RTX), an anti-CD20 monoclonal antibody, is used for the treatment of…
Abstract Number: 1091 • 2018 ACR/ARHP Annual Meeting
Serine Arginine-Rich Splicing Factor 1 (SRSF1) Is Essential for T Lymphocyte Homeostasis and Decreased Levels of SRSF1 Correlate with Lymphopenia in SLE Patients
Takayuki Katsuyama¹, Kotaro Iida² and Vaishali R. Moulton¹, ¹Division of Rheumatology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ²Beth Israel Deaconess Medical Center, Harvard Medical School, Division of Rheumatology, Department of Medicine, Boston, MA
Background/Purpose: Lymphopenia is one of the most common clinical features in patients with systemic lupus erythematosus (SLE), and associates with severe disease and comorbidities such…
Abstract Number: 2233 • 2018 ACR/ARHP Annual Meeting
Activation and Deficiency of Circulating Mucosal-Associated Invariant T Cells in Patients with Gouty Arthritis
Yong-Wook Park¹, Young-Nan Cho², Hye-Mi Jin¹ and Seung-Jung Kee³, ¹Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea, Republic of (South), ²Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, MN, Korea, Republic of (South), ³Laboratory Medicine, Chonnam National University Medical School and Hospital, Gwangju, Korea, Republic of (South)
Background/Purpose: Mucosal-associated invariant T (MAIT) cells contribute to protection against certain microorganism infections and play an important role in mucosal immunity. Upon antigen recognition, MAIT…
Abstract Number: 39 • 2018 ACR/ARHP Annual Meeting
Allogeneic Mesenchymal Stem Cells Derived Extracellular Vesicles As a Superior Immunosuppressant in Murine Arthritis Therapy
Runci Wang^1,2, Yi Liu^3,4 and Songtao Shi⁵, ¹Department of Anatomy and cell biology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, ²Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China, ³Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, China, Chengdu, China, ⁴Department of Rheumatology and Immunology, West China Hospital of Sichuan University, Chengdu, China, ⁵Department of Anatomy and Cell Biology, School of Dental Medicine, University of Pennsylvania,, Philadelphia, PA
Allogeneic mesenchymal stem cells derived extracellular vesicles as a superior immunosuppressant in murine arthritis therapyRunci Wang1,2, Yi Liu2, Songtao Shi1Affiliation: 1. Department of Anatomy and…
Abstract Number: 151 • 2018 ACR/ARHP Annual Meeting
Molecular Mechanisms of Pathogenic T Cell Resilience in Human Arthritis
Pavanish Kumar¹, Jing Yao Leong¹, Bhairav Paleja¹, Suzan Saidin¹, jorg van Loosdregt¹, Thaschawee Arkachaisri², Alessandro Consolaro³, Marco Gattorno⁴, Alberto Martini⁵, Gary W Williams⁶, Ken D Pischel⁶, Martin Lotz⁷ and Salvatore Albani⁸, ¹Translational Immunology Institute, Singhealth/Duke-NUS Academic Medical Centre, Singapore, Singapore, ²KK Women's and Children's Hospital, Singapore, Singapore, ³Second Paediatric Division, University of Genoa and G Gaslini Institute, Genova, Italy, Genova, Italy, ⁴Second Paediatric Division, University of Genoa and G Gaslini Institute, Genova, Italy, Genoa, Italy, ⁵Pediatric Rheumatology International Trial Organization (PRINTO) Coordinating Centre, Genoa, Italy, ⁶Scripps Clinic, La Jolla,, California, CA, ⁷Department of Molecular & Experience Medicine, Scripps Research Institute, LaJolla, CA, ⁸Translational Immunology Institute, Singhealth/Duke-NUS Acedemic Medical Centre, Singapore, Singapore
Background/Purpose: T-cell resilience is critical to the immune pathogenesis of human autoimmune arthritis. Autophagy is essential for memory T cell generation and is associated with…
Abstract Number: 1583 • 2018 ACR/ARHP Annual Meeting
Low-Dose IL-2 Promotes the Proliferation of Peripheral Regulatory T Cells in Primary Sjogren’s Syndrome to Restore Its Balances with Pro-Inflammatory Lymphocytes
Miao Miao¹, Zhenye Hao¹, Yingying Guo¹, Xiaoying Zhang¹, Sheng-Xiao Zhang¹, Jing Luo², Jinfang Zhao³, Chong Gao⁴ and Xiao-Feng Li⁵, ¹The Second Hospital of Shanxi Medical University, Taiyuan, China, ²the Second Hospital of Shanxi Medical University, Taiyuan, China, ³The Shanxi Medical University, Taiyuan, China, ⁴Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, Cambridge, MA, ⁵Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
Background/Purpose: To investigate the effect of low-dose IL-2 on the balance of Treg with Teff and other pro-inflammatory lymphocytes in peripheral blood of pSS patients.Methods:…
Abstract Number: 2795 • 2018 ACR/ARHP Annual Meeting
IL-23 Acts through IL-23R+ Tfh cells to Promote Pathogenic IgG Autoantibody Formation in Lupus
Huixian Hong¹, Qi Wu², PingAr Yang², Bao Luo³, Jun Li⁴, Hao Li⁵, Daniel Cua⁶, Hui-Chen Hsu² and John D. Mountz⁷, ¹University of Alabama at Birmingham， Division of Clinical Immunology and Rheumatology, Department of Medicine, Birmingham, AL, ²Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham， Division of Clinical Immunology and Rheumatology, Department of Medicine, Birmingham, AL, ³DIvision of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham， Division of Clinical Immunology and Rheumatology, Department of Medicine, Birmingham, AL, ⁴Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham， Division of Clinical Immunology and Rheumatology, Department of Medicine, Birmingham, AL, ⁵Division of Rheumatology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ⁶Discovery Research, Merck Research Laboratory, Palo Alto, CA, ⁷University of Alabama at Birmingham, Devision of Clinical Immunology and Rheumatology; University of Alabama at Birmingham and Birmingham VA Medical Center, Birmingham, AL
Background/Purpose: IL-23 is currently a target for several forms of autoimmune diseases, yet its role in promoting pathogenic autoantibody development is less clear. IL-23 was…
Abstract Number: 44 • 2018 ACR/ARHP Annual Meeting
Histone Deacetylase 1 (HDAC1): A Novel Therapeutic Target in Patients with Rheumatoid Arthritis
Lisa Goschl¹, Victoria Saferding², Johan Bäcklund³, Clemens Scheinecker⁴, Josef S. Smolen⁵, Günter Steiner⁶, Wilfried Ellmeier¹ and Michael Bonelli⁷, ¹Medical University of Vienna,Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Vienna, Austria, ²Medical University of Vienna, Austria, Vienna, Austria, ³Karolinska Institute,Department of Medical Biochemistry and Biophysics, Stockholm, Sweden, ⁴Medical University of Vienna, Divison of Rheumatology, Vienna, Austria, ⁵Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, Vienna, Austria, ⁶Division of Rheumatology, Department of Internal Medicine III, Medical University Vienna, Austria, Vienna, Austria, ⁷Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
Background/Purpose: Despite enormous efforts to develop new therapeutic strategies for treatment of rheumatoid arthritis (RA), the large number of non responding patients to currently available…
Abstract Number: 153 • 2018 ACR/ARHP Annual Meeting
Chemotaxis of Vδ2 T Cells to the Joints Contributes to the Pathogenesis of Rheumatoid Arthritis
Xiao Xinyue¹, Wenxiu MO² and Xuan Zhang³, ¹Peking Union Medical College Hospital, Beijing, China, ²Department of Rheumatology, Peking Union Medical College Hospital, Beijing, China, ³Rheumatology, Peking Union Medical College Hospital, Beijing, China
Background/Purpose: To explore the role of Vδ2 t cells in the pathogenesis of rheumatoid arthritis (rA) Methods: Sixty-eight patients with RA, 21 patients with osteoarthritis…
Abstract Number: 1587 • 2018 ACR/ARHP Annual Meeting
Pathogenic Role of Interleukin 27 in the Nonobese Diabetic Mouse Model of Sjögren Syndrome
Scott Lieberman¹, Jennifer Barr², Xiaofang Wang² and Yi-Guang Chen³, ¹Division of Rheumatology, Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA, ²Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA, ³Pediatrics, Medical College of Wisconsin, Milwaukee, WI
Background/Purpose: Sjögren syndrome is an immunologically complex autoimmune disease characteristically targeting the lacrimal and salivary glands leading to progressively worsening oral and ocular health and…
Abstract Number: 2797 • 2018 ACR/ARHP Annual Meeting
Regulation of Autoimmune T Cells By the Co-Receptors CD28 and PD-1
Sabina Sandigursky¹ and Adam Mor², ¹Medicine, NYU School of Medicine, New York, NY, ²Rheumatology and Pathology, NYU School of Medicine, New York, NY
Background/Purpose: T cells play a major role in the pathogenesis of Rheumatoid Arthritis (RA). These cells are regulated by signals provided via the T cell…
Abstract Number: 58 • 2018 ACR/ARHP Annual Meeting
Inhibition of Lipid Phosphatase SHIP1 Expands Myeloid-Derived Suppressor Cells and Attenuates Rheumatoid Arthritis in Mice
Eui Young So¹, Changqi Sun², Patrycja M Dubielecka¹, Anthony M. Reginato³ and Olin D. Liang¹, ¹Division of Hematology/Oncology, Rhode Island Hospital, Providence, RI, ²Division of Rheumatology, Rhode Island Hosital/The Warren Alpert School of Medicine of Brown University, Providence, RI, ³Division of Rheumatology, Rhode Island Hospital, Providence, RI
Background/Purpose: The SH2-containing inositol-5’-phosphatase-1 (SHIP1) controls PI3K initiated signaling by limiting membrane recruitment and activation of AKT. SHIP1 knockout in mice leads to an increase…
Abstract Number: 155 • 2018 ACR/ARHP Annual Meeting
Polyfunctional Synovial T-Cell Responses and Synovial Invasiveness Repressed By Blockade of Phosphodiesterase 4
Sarah M. Wade¹, Mary Canavan¹, Trudy McGarry¹, Siobhan C. Wade¹, Ronan Mullan², Douglas J. Veale³ and Ursula Fearon¹, ¹Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ²Department of Rheumatology,, Tallaght Hospital, Dublin, Ireland, ³Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, University College Dublin, Dublin, Ireland
Background/Purpose: Genetic and functional studies strongly support the role of T-cells in PsA pathophysiology. Effective targeting of T-cells requires a detailed understanding of their phenotypic…
Abstract Number: 1828 • 2018 ACR/ARHP Annual Meeting
Gut-Joint T Cell Trafficking in a Model of Bacteria-Driven Murine IBD-Spa
Eric Norman¹, Adam Lefferts¹ and Kristine A Kuhn^1,2, ¹Rheumatology, University of Colorado Denver, Aurora, CO, ²Mucosal Inflammation Program, University of Colorado Denver, Aurora, CO
Background/Purpose: Significant bacterial dysbiosis occurs in individuals with IBD and SpA, and individuals with SpA have evidence of circulating intestinal-derived cells, lending credence to the…

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