Abstracts tagged "T cells"

Abstract Number: 1917 • 2016 ACR/ARHP Annual Meeting
Rheumatoid Arthritis Cells Produce Extracellular Vesicles That Incorporate PD-1 and microRNAs Targeting the PD-1 Pathway in Surrounding Cells
Stinne Greisen^1,2, Yan Yan³, Aida Hansen¹, Morten Venø³, Jens Randel Nyengaard⁴, Malene Hvid⁵, Arlene Sharpe⁶, Jørgen Kjems³ and Bent Deleuran^7,8, ¹Biomedicine, Aarhus University, Aarhus, Denmark, ²Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark, ³Interdisciplinari Nanoscience Center (iNANO), Aarhus University, Aarhus, Denmark, ⁴Clinical Medicine, Electro Microscopy Laboratory, Aarhus University Hospital, Aarhus, Denmark, ⁵Department of Clinical Medicine, Aarhus University, Aarhus, Denmark, ⁶Microbiology and Immunobiology, Harvard Medical School, Boston, MA, ⁷Rheumatology, Aarhus University Hospital, Aarhus, Denmark, ⁸Department of Biomedicine, Aarhus University, Aarhus, Denmark
Background/Purpose: Programmed death-1 (PD-1) is a central marker of T cell exhaustion. Exhausted T cells are present in inflammatory conditions, where they fail to eliminate…
Abstract Number: 2698 • 2016 ACR/ARHP Annual Meeting
Regulation of Inflammation By Interleukin-27 in a Rat Model of Spondyloarthritis (SpA)
Quentin Jouhault¹, Maxime A. Breban², Luiza Krause³ and Gilles Chiocchia³, ¹Infection and inflammation, INSERM-U1173, University of Versailles Saint-Quentin-en-Yvelines, France, Montigny-le-Bretonneux, France, ²Rheumatology Division, Ambroise Paré Hospital (AP-HP), and Versailles Saint Quentin en Yvelines University, Boulogne-Billancourt, France, ³Infection and Inflammation, INSERM-U1173, University of Versailles Saint-Quentin-en-Yvelines, France, Montigny-le-Bretonneux, France
Background/Purpose: SpA is a chronic inflammatory rheumatic disorder with osteo-articular and extra-articular manifestations. HLA-B27/human β2-microglobulin transgenic rats (B27 rat) spontaneously develop a phenotype closely resembling…
Abstract Number: 2938 • 2016 ACR/ARHP Annual Meeting
U4ATAC Mutation Is Associated with an Immune Dysregulation Syndrome Characterized By Primary Immunodeficiency, Short Stature and Polyglandular Endocrinopathy
Maria Gutierrez¹, Zuoming Deng², Joshua McElwee³, Richard M. Siegel⁴ and Eric Hanson⁵, ¹NIAMS, NIH, Bethesda, MD, ²NIAMS/NIH, Bethesda, MD, ³Immunogenetics Genetics and Pharmacogenomics, Merck Research Laboratories, Boston, MA, ⁴National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD, ⁵National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
Background/Purpose: A host of primary immunodeficiencies, such as autoimmune polyendocrinopathy, candidiasis, ectodermal dysplasia (APECED), immune dysregulation, polyendocrinopathy, enteropathy, X-linked syndrome (IPEX), and STAT5b insufficiency can…
Abstract Number: 1606 • 2016 ACR/ARHP Annual Meeting
Metrotexate Treatment Inmunomodulate the Abnormal Cytokine Expression Present in NaïVe Rheumatoid Arthritis Patients
Jorge Monserrat Sanz¹, Ana Maria Gómez Lahoz¹, Maria Dolores Sosa Reina¹, Cristina Bohórquez Heras², Atusa Movasat², Ana Pérez Gómez², Lucía Ruiz Gutiérrez², Ana Sánchez Atrio², Eduardo Cuende Quintana², M José León², David Diaz³, Fernando Albarrán Hernández² and Melchor Alvarez-Mon^2,3, ¹Medicine and Medical Specialities, Laboratory of Immune System Diseases, Department of Medicine, University of Alcalá, Alcalá de Henares, Madrid, Spain, ²University Hospital Príncipe de Asturias, Immune System Diseases, Rheumatology department, Alcalá de Henares, Madrid, Spain, ³Laboratory of Immune System Diseases, Department of Medicine, University of Alcalá, Alcalá de Henares, Madrid, Spain
Background/Purpose: Methotrexate (MTX) is the most commonly used DMARD in rheumatoid arthritis (RA) patients. Since the first reports of the efficacy of low-dose MTX in…
Abstract Number: 1918 • 2016 ACR/ARHP Annual Meeting
Characterising the Specificity, Function and Behavior of CD4+ T Cells Initiating Inflammation in a Murine Model of Rheumatoid Arthritis
Robert Benson¹, Catriona Prendergast², Iain B McInnes², James Brewer³ and Paul Garside⁴, ¹nstitute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, United Kingdom, ²University of Glasgow, Glasgow, United Kingdom, ³Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom, ⁴University of Glasgow, Glasgow, Great Britain
Background/Purpose: CD4+ T cells are important contributors to the pathogenesis of Rheumatoid Arthritis (RA). The presence of activated T cells in the inflamed synovium, strong…
Abstract Number: 2700 • 2016 ACR/ARHP Annual Meeting
The Lymphatic System: A Gatekeeper for Migration of Pathogenic T-Cells Towards Synovial Joints and Entheses in Psoriasis
Radjesh Bisoendial^1,2, Errol Prens³, Annemarie Mus², Patrick Asmawidjaja², Nadine Davelaar², Arien Hofman⁴, Jean-Bart Jaquet⁴, Mieke Hazes², Marc Kok¹, Wolfgang Weninger⁵ and Erik Lubberts², ¹Clinical Immunology and Rheumatology, Maasstad hospital, Rotterdam, Netherlands, ²Rheumatology, Erasmus University Medical Center, Rotterdam, Netherlands, ³Dermatology, Erasmus University medical Center, Rotterdam, Netherlands, ⁴Plastic surgery, Maasstad hospital, Rotterdam, Netherlands, ⁵Immune imaging, The Centenary Institute, Sydney, Australia
Background/Purpose: Psoriasis (PsO) is a common inflammatory skin disease that is characterized by acanthosis, impaired immune cell migration, and remodeling of the vascular and lymphatic…
Abstract Number: 3035 • 2016 ACR/ARHP Annual Meeting
Characterization of DC-STAMP+ T Cells, a CD3+CD4+ T Cell Subset Uniquely Present in Patients with Psoriatic Disease
Yahui Grace Chiu¹, Edward Schwarz², Richard Bell³, Dongge Li⁴, Nelson Huertas⁴, Cristy Bell⁵, Sharon Moorehead⁵, Debbie Campbell⁵, Changyong Feng⁶ and Christopher T. Ritchlin⁷, ¹Allergy, Immunology, and Rheumatology, University of Rochester Medical Center, Rochester, NY, ²Orthopedeatrics, University of Rochester, Rochester, NY, ³Pathology, University of Rochester, Rochester, NY, ⁴Allergy, Immunology and Rheumatology, University of Rochester, Rochester, NY, ⁵Allergy, Immunology & Rheumatology, University of Rochester, Rochester, NY, ⁶Statistics, University of Rochester, Rochester, NY, ⁷Allergy Immunology & Rheumatology, University of Rochester Medical Center, Rochester, NY
Background/Purpose: Psoriatic arthritis (PsA) is an inflammatory joint disease that affects over 650,000 Americans. Bone damage occurs in half of these patients within the first…
Abstract Number: 183 • 2016 ACR/ARHP Annual Meeting
Protective Role of Mucosal-Associated Invariant T (MAIT) Cells in an Imiquimod-Induced Psoriasis Model
Goh Murayama¹, Asako Chiba², Hitomi Toda², Ken Yamaji¹, Naoto Tamura³ and Sachiko Miyake⁴, ¹Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan, ²Juntendo Univ Sch of Med, Juntendo University School of Medicine, Tokyo, Japan, ³Rheumatology, Juntendo University School of Medicine, Tokyo, Japan, ⁴Immunology, Juntendo University School of Medicine, Tokyo, Japan
Background/Purpose: Psoriasis is a chronic inflammatory disease of the skin and is often accompanied by arthritis. The underlying pathogenesis of psoriasis is still unclear, but…
Abstract Number: 1612 • 2016 ACR/ARHP Annual Meeting
Abatacept Targets T Follicular Helper Cells in Patients with Rheumatoid Arthritis
Shingo Nakayamada¹, Satoshi Kubo², Maiko Yoshikawa², Yusuke Miyazaki², Ippei Miyagawa³, Shigeru Iwata⁴, Kazuhisa Nakano⁵, Kazuyoshi Saito^6,7 and Yoshiya Tanaka⁸, ¹First Department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ²The First Department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ³University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ⁴First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ⁵The First department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ⁶The First Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan, ⁷First Department of Internal Medicine, University of Occupational and Environmental Health, Japan, KItakyushu, Japan, ⁸University of Occupational and Environmental Health, Kitakyushu, Japan
Background/Purpose: In the pathogenesis of rheumatoid arthritis (RA), T cells can differentiate into functionally distinct subsets, leading to the persistent inflammation and immune abnormality associated…
Abstract Number: 1919 • 2016 ACR/ARHP Annual Meeting
Analysis of T Cell Repertoire Diversity of CD4+ Memory and NaïVe T Cells By Next Generation Sequencing and Its Association with Rheumatoid Arthritis Disease Parameters
Keiichi Sakurai¹, Hirofumi Shoda¹, Kazuyoshi Ishigaki², Yumi Tsuchida¹, Yasuo Nagafuchi¹, Shuji Sumitomo¹, Akari Suzuki², Keishi Fujio¹ and Kazuhiko Yamamoto¹, ¹Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan, ²Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease characterized by peripheral polyarthritis. The importance of CD4+ T cell in the pathophysiology of RA is well-known…
Abstract Number: 2708 • 2016 ACR/ARHP Annual Meeting
Type 17 Immunity in Spondyloarthritis Is Expanded Across Multiple Lymphocyte Subsets
Davide Simone¹, Hussein Al Mossawi¹, Anna Ridley², Jelle De Wit¹, Takuya Sekine¹, Nuha Ansar¹, Karen Doig¹ and Paul Bowness¹, ¹Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom, ²Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Science, University of Oxford, Oxford, United Kingdom
Background/Purpose: The spondyloarthritides (SpA) are a group of chronic inflammatory disorders involving the axial spine and the peripheral joints. Genetic, functional and clinical trial evidences…
Abstract Number: 3036 • 2016 ACR/ARHP Annual Meeting
IL-22 Is Dysregulated in Psoriatic Arthritis and Acts to Limit IFN-γ Driven Inflammatory Chemokine Production
Amara Ezeonyeji¹, Helen Baldwin², Milica Vukmanovic-Stejic³ and Michael R. Ehrenstein⁴, ¹Rheumatology, Medicine, University College London, London, United Kingdom, ²Rheumatology, Centre for Rheumatology Research, University College London, london, United Kingdom, ³Infection & Immunity, University College London, london, United Kingdom, ⁴Medicine, University College London, London, United Kingdom
Background/Purpose: IL-22 is an IL-10 family cytokine with both pro-inflammatory and anti-inflammatory effects and its dysregulation is associated with the development of autoimmune disease including…
Abstract Number: 268 • 2016 ACR/ARHP Annual Meeting
Effect of Abatacept Treatment on T Cells in Muscle Tissue and Peripheral Blood in Polymyositis and Dermatomyositis Patients
Quan Tang¹, Daniel Ramsköld², Olga Krystufkova³, Herman F Mann⁴, Cecilia Wick⁵, Maryam Dastmalchi⁶, Peter Brodin⁷, Vivianne Malmström⁸, Jiri Vencovsky⁹ and Ingrid E. Lundberg⁶, ¹Department of Medicine, Rheumatology Unit, Department of Medicine, Karolinska University Hospital, Solna, Karolinska Institutet, Stockholm, Sweden, ²Department of Medicine, Rheumatology Unit, Karolinska University Hospital, Solna, Stockholm, Sweden, ³Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic, ⁴1st Faculty of Medicine, Charles University, Prague, Prague, Czech Republic, ⁵Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, ⁶Department of Medicine, Rheumatology Unit, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden, ⁷Science for Life Laboratory, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ⁸Department of Medicine, Rheumatology Unit, Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden, ⁹Pediatria II, Reumatologia, PRINTO, Istituto Giannina Gaslini, Genoa, Italy
Background/Purpose: Abatacept (CTLA4-Ig), a blocking agent for T cell co-stimulation, has been proven beneficial in several autoimmune diseases. The aim of the study was to…
Abstract Number: 1749 • 2016 ACR/ARHP Annual Meeting
The Role of Mucosal-Associated Invariant T (MAIT) Cells in Lupus Dermatitis
Goh Murayama¹, Asako Chiba², Hirofumi Amano³, Ken Yamaji¹, Naoto Tamura¹ and Sachiko Miyake⁴, ¹Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan, ²Juntendo Univ Sch of Med, Juntendo University School of Medicine, Tokyo, Japan, ³Department of Rheumatology and Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan, ⁴Immunology, Juntendo University School of Medicine, Tokyo, Japan
Background/Purpose: Mucosal-associated invariant T (MAIT) cells are innate T cells that are restricted by MHC-related molecule-1 (MR1) and express a semi-invariant TCRa chain: Va7.2-Ja33 in…
Abstract Number: 1920 • 2016 ACR/ARHP Annual Meeting
Vitamin D Induces a Type 1 Regulatory T Cell (Tr1)-like Phenotype in Human C-C Chemokine Receptor Type 6 (Ccr6)+ th Cells and Promotes Their Migration to an Inflammatory Environment
Wendy Dankers¹, Jan Piet van Hamburg¹, Nadine Davelaar¹, Patrick Asmawidjaja¹, Hoyan Wen¹, Johannes van Leeuwen², Edgar Colin³ and Erik Lubberts¹, ¹Rheumatology and Immunology, Erasmus MC, University Medical Center, Rotterdam, Netherlands, ²Internal Medicine, Erasmus MC, University Medical Center, Rotterdam, Netherlands, ³Rheumatology, ZGT, Almelo, Netherlands
Background/Purpose: The active vitamin D metabolite 1,25(OH)2D3 suppresses various experimental autoimmune diseases. In addition, serum vitamin D levels, vitamin D intake and polymorphisms in the…

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