Abstracts tagged "T cells"

Abstract Number: 1034 • 2015 ACR/ARHP Annual Meeting
Immunomodulation By a Second-Generation Peptidyl Arginine Deiminase Inhibitor Abrogates Collagen-Induced Arthritis in a Therapeutic Protocol
Anne-Marie Quirke¹, Joanna Kawalkowska², Fatemeh Ghari³, Venkataraman Subramaniam⁴, Paul Thompson⁵, Richard O. Williams¹, Nick La Thangue³ and Patrick J. Venables¹, ¹Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom, ²Kennedy Institute for Rheumatology, University of Oxford, Oxford, United Kingdom, ³Department of Oncology, University of Oxford, Oxford, United Kingdom, ⁴Biochemistry and Molecular Pharmacology, University of Massachusetts, Worcester, MA, ⁵University of Massachusetts, Worcester, MA
Background/Purpose: Citrullination is a post translational modification of arginine catalysed by peptidyl arginine deiminases (PADs) and may be important in generating pathogenic autoantibodies to citrullinated…
Abstract Number: 1934 • 2015 ACR/ARHP Annual Meeting
Autophagy Pathway As a Target of Therapeutic P140 Peptide Used in Lupus
Maud Wilhelm¹, Fengjuan Wang², Nicolas Schall², Michael Faludi³, Jean Francois Kleinmann⁴, Emil P. Nashi⁵, Thierry Martin⁶, Jean Sibilia⁷, Jean-Louis Pasquali⁸, Daniel Wallace⁹ and Sylviane Muller¹⁰, ¹Immunopathologie & Chimie Thérapeutique, CNRS, Strasbourg, France, ²CNRS, Strasbourg, France, ³761 Graham, McGill University, Mont-Royal, QC, Canada, ⁴Rheumatology, Strasbourg University Hospital, Strasbourg, France, ⁵Rheumatology, McGill University Health Centre, Montreal, QC, Canada, ⁶Cnrs UPR9021, IBMC, Strasbourg, France, ⁷Department of Rheumatology, Strasbourg University Hospital, Strasbourg, France, ⁸Strasbourg University, Hospital, CNRS UPR 3572, Strasbourg, France, ⁹Cedars-Sinai/UCLA, Los Angeles, CA, ¹⁰CNRS Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France
Background/Purpose: P140 is a 21-mer peptide (sequence 131-151, phosphorylated at position 140) that is derived from the spliceosomal protein U1-70K. In a multicenter, randomized, placebo-controlled…
Abstract Number: 2815 • 2015 ACR/ARHP Annual Meeting
A Comparison of Th17 Gene Expression in Psoriatic Arthritis Synovial Fluid and Peripheral Blood
Fatima Abji¹, Remy Pollock², Kun Liang³, Vinod Chandran⁴ and Dafna Gladman⁴, ¹Rheumatology, Toronto Western Hospital and University of Toronto, Toronto, ON, Canada, ²University of Toronto, Toronto Western Hospital, Toronto, ON, Canada, ³Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, ON, Canada, ⁴Rheumatology, University of Toronto, Toronto Western Hospital, Toronto, ON, Canada
Background/Purpose: Psoriatic arthritis (PsA) is a destructive inflammatory arthritis that develops in approximately 30% of patients with cutaneous psoriasis. Th17 cells infiltrate psoriatic skin and…
Abstract Number: 3221 • 2015 ACR/ARHP Annual Meeting
Safety and Efficiency of Low-Dose Interleukin-2 Treatment in Systemic Lupus Erythematosus
Jing He¹, Xia Zhang², Yunbo Wei³, Xiaolin Sun⁴, Jianping Guo⁵, Yuebo JIn⁶, Rulin Jia⁶, Lei Zhu⁶, Zhaohua Hou⁷, Yaping Chen⁸, Yuan An⁶, Yuan Jia⁶, Xu Liu⁶, Limin Ren⁶, Ru Li⁶, HUA YE⁹, Shi Chen⁶, Xuewu Zhang¹⁰, Yin Su¹¹, Eric Morand¹², Yu Di¹³ and Zhanguo Li⁶, ¹Peking Univerisity People's Hospital, Beijing, China, ²Department of Rheumatology & immunology, Peking University People's Hospital, Beijing, China, ³Immunology for Environment and Health, Shandong Analysis and Test Center, Shandong Academy of Science, Shandong, China, ⁴People's hospital,Peking University, Beijing, China, ⁵Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China, ⁶Peking University People's Hospital, Beijing, China, ⁷Shandong Analysis and Test Center, Beijing, China, ⁸Monash University, Clayton, Austria, ⁹No.11 XIZHIMENG SOUTH STREET,, Peking University People's Hospital, Beijing, China, ¹⁰Rheumatology, Peking University People's Hospital, Beijing, China, ¹¹Department of Rheumatology and Immunology,Clinical Immunology Center, Peking University People's Hospital, Beijing, China, ¹²Medicine, Monash University, Clayton, Australia, ¹³Molecular Immunomodulation Laboratory, Monash University, Clayton, Austria
Background/Purpose: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with multi-system involvement, associated with an imbalance between effector and regulatory CD4+ T cells. The…
Abstract Number: 2848 • 2014 ACR/ARHP Annual Meeting
T-Cell Signaling Defects Can be Corrected By Manipulating ‘TCR Signal Fine-Tuning Molecules’ That Are Altered Due to Increased Ubiquitination in Systemic Autoimmune Disease
Julia Pinkhasov¹ and Ram Raj Singh^1,2,3,4, ¹Autoimmunity and Tolerance Laboratory, Department of Medicine/Rheumatology, UCLA, Los Angeles, CA, ²Interdepartmental Program in Molecular Toxicology, UCLA, Los Angeles, CA, ³Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, ⁴Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, CA
Background/Purpose . T-cell selection in the thymus is primarily determined by the avidity of T cell receptor (TCR) for self-ligand-MHC. Since this process is dependent…
Abstract Number: 2351 • 2014 ACR/ARHP Annual Meeting
Ligand of Glucocorticoid-Induced Tumor Necrosis Factor Receptor Enhances Th17 Cells Response in Collagen-Induced Arthritis Via P38 MAPK and STAT3 Pathway
Xinyi Tang¹ and Shengjun Wang², ¹Department of Laboratory Medicine, Jiangsu University Affi�liated People’s Hospital, Zhenjiang, China, ²Department of Laboratory Medicine, Jiangsu University Affiliated People’s Hospital, Zhenjiang, China
Background/Purpose Helper T lymphocyte-17 (Th17) has recognized to be an important factor in rheumatoid arthritis (RA) pathogenesis. The natural ligand of glucocorticoid-induced tumor necrosis factor…
Abstract Number: 1735 • 2014 ACR/ARHP Annual Meeting
T–cell Tolerance Induction By the Glycosylated Type II Collagen Peptide-Based Vaccination in Murine Arthritis
Vilma Urbonaviciute¹, Changrong Ge¹, Bingze Xu¹, Susanne van den Berg¹, Balik Dzhambazov², Johan Bäcklund¹ and Rikard Holmdahl¹, ¹Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden, ²Department of Developmental Biology, Plovdiv University, Plovdiv, Bulgaria
Background/Purpose: Type II collagen (CII) has been suggested as a possible autoantigen in RA, since autoimmunity to CII is commonly detected in patients with RA.…
Abstract Number: 881 • 2014 ACR/ARHP Annual Meeting
DNA Methylation Analysis of the Temporal Artery Microenvironment Reveals a Robust T Cell Signature and Suggests a Role for TNF-α in Giant Cell Arteritis
Patrick S. Coit¹, Lindsey B. De Lott², Bin Nan³, Victor M. Elner⁴ and Amr H. Sawalha¹, ¹Division of Rheumatology, University of Michigan, Ann Arbor, MI, ²Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI, ³Department of Biostatistics, University of Michigan, Ann Arbor, MI, ⁴Department of Ophthalmology and Visual Sciences & Department of Pathology, University of Michigan, Ann Arbor, MI
Background/Purpose: Giant cell arteritis (GCA) is a systemic large vessel vasculitis of unknown etiology. A hallmark of GCA is the presence of granulomatous inflammation of…
Abstract Number: 2736 • 2014 ACR/ARHP Annual Meeting
Female Specific Increase in T Cell Glycosylation in Lupus
Gabriela Gorelik¹ and Bruce Richardson², ¹Internal Medicine, University of Michigan, Ann Arbor, MI, ²Rheumatology, University of Michigan, Ann Arbor, MI
Background/Purpose: Systemic Lupus Erythematosus (SLE) is an autoimmune inflammatory disease characterized by altered T cell signaling. SLE is characterized by epigenetic mechanisms that cause hypomethylation…
Abstract Number: 2352 • 2014 ACR/ARHP Annual Meeting
RORγt Expressing Foxp3⁺ Regulatory T Cells Regulates the Development of Autoimmune Arthritis in Mice
Yuya Kondo¹, Masahiro Tahara¹, Mana Iizuka¹, Masahiro Yokosawa¹, Shunta Kaneko¹, Hiroto Tsuboi¹, Satoru Takahashi², Isao Matsumoto³ and Takayuki Sumida¹, ¹Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan, ²Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan, ³Department of Interenal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
Background/Purpose: To determine the effect of RORγt overexpression in T cells on the development of collagen induced arthritis (CIA). Methods: Arthritis was induced with chicken…
Abstract Number: 1734 • 2014 ACR/ARHP Annual Meeting
IL-22 Plays a Significant Role in the Initiation and Augmentation of Th17-Dependent Experimental Arthritis
Debbie M. Roeleveld¹, Renoud Marijnissen², Rebecca Rogier³, Birgitte Walgreen¹, Monique M. Helsen³, Liduine van den Bersselaar³, Shahla Abdollahi-Roodsaz⁴, Wim B. van den Berg³ and Marije I. Koenders³, ¹Experimentel Rheumatology, Radboud university medical center, Nijmegen, Netherlands, ²Experimental Rheumatology, Radboud University Medical Center, Nijmegen, Netherlands, ³Experimental Rheumatology, Radboud university medical center, Nijmegen, Netherlands, ⁴Rheumatology, Radboud university medical center, Nijmegen, Netherlands
Background/Purpose Rheumatoid arthritis (RA) is a chronic, inflammatory autoimmune disease that leads to progressive destruction of cartilage and bone. IL-22 and IL-22-producing T helper cells…
Abstract Number: 860 • 2014 ACR/ARHP Annual Meeting
Inhibition of G Protein βγ Signaling Inhibits Nephritis in Lupus Prone Mice
Teresa Owen¹, Javier Rangel-Moreno², Jesi To³, Bruce Goldman⁴, Alan Smrcka³ and Jennifer H. Anolik⁵, ¹Rheumatology, University of Rochester, Rochester, NY, ²Medicine- Allergy, Immunology, and Rheumatology, University of Rochester, Rochester, NY, ³Pharmacology & Physiology, University of Rochester, Rochester, NY, ⁴Pathology, University of Rochester, Rochester, NY, ⁵Medicine- Allergy, Immunology and Rheumatology, University of Rochester, Rochester, NY
Background/Purpose G protein-coupled receptors (GPCRs), including chemokine receptors on leukocytes, signal through G protein Gβγ subunits. An important target of Gβγ is phosphoinositide 3 kinase γ…
Abstract Number: 2735 • 2014 ACR/ARHP Annual Meeting
Association of a-Kinase Anchoring Protein-79 (AKAP79) to PKC Mediates Inhibition of IL2 Transcription and Erk Activation in T Cells
Gabriel Criado¹, María J. Pérez-Lorenzo¹, María Galindo², Jose L. Pablos² and Abel Suarez-Fueyo¹, ¹Grupo de Enfermedades Inflamatorias y Autoinmunes, Instituto de Investigación Hospital 12 de Octubre (I+12), Madrid, Spain, ²Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (I+12), Madrid, Spain
Background/Purpose A-Kinase anchoring Protein AKAP79 associates to and regulates the activity of PKA, PKC and calcineurin, key regulators of T cell activation. We have previously…
Abstract Number: 2174 • 2014 ACR/ARHP Annual Meeting
MicroRNA-146a in Salivary Gland Epithelial Cells Inhibits Co-Stimulatory Molecule CD80 Expression and Increases Autoreactive T Cell Activation in Sjögren’s Syndrome
Adrienne Gauna¹, Jun-O Jin^2,3, Qing Yu², Carol Stewart¹ and Seunghee Cha¹, ¹Oral and Maxillofacial Diagnostic Sciences, University of Florida, Gainesville, FL, ²Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, ³Shanghai Public Health Clinical Center, Fudan University Shanghai Medical College, Shanghai, China
Background/Purpose: Sjögren’s syndrome (SS) causes severe dry mouth and eyes. The presence of immune cell infiltration in the salivary (SG) and lacrimal glands suggests a…
Abstract Number: 1733 • 2014 ACR/ARHP Annual Meeting
Immunomodulatory Effects of Dietary Non-Digestible Oligosaccharides in T Cell-Mediated Autoimmune Arthritis
Rebecca Rogier¹, Tom Ederveen², Anita Hartog³, Birgitte Walgreen⁴, Liduine van den Bersselaar¹, Monique M. Helsen¹, Paul Vos³, Johan Garssen^3,5, Linette Willemsen⁵, Wim B. van den Berg¹, Marije I. Koenders¹ and Shahla Abdollahi-Roodsaz⁶, ¹Experimental Rheumatology, Radboud university medical center, Nijmegen, Netherlands, ²Centre for Molecular Bioinformatics Nijmegen (CMBI), Radboud university medical center, Nijmegen, Netherlands, ³Danone Nutricia Research, Utrecht, Netherlands, ⁴Experimentel Rheumatology, Radboud university medical center, Nijmegen, Netherlands, ⁵Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht, Netherlands, ⁶Rheumatology, Radboud university medical center, Nijmegen, Netherlands
Background/Purpose: Accumulating evidence indicates the relevance of intestinal microbiota in shaping the immune response and supports its contribution to the development of autoimmune diseases. Prebiotic…

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