Abstracts tagged "T cells"

Abstract Number: 2 • 2017 Pediatric Rheumatology Symposium
Murine Model of Arthritis Flare Identifies CD8+ Tissue Resident Memory T Cells in Recurrent Synovitis
Margaret H Chang¹, Anais Levescot², Allyn Morris², Nathan Nelson-Maney³, Robert Fuhlbrigge⁴ and Peter A. Nigrovic², ¹Immunology, Boston Children's Hospital, Boston, MA, ²Rheumatology, Immunology, and Allergy, Brigham and Women’s Hospital, Boston, MA, ³Division of Rheumatology, Immunology, and Allergy, Brigham and Women’s Hospital, Boston, MA, ⁴Children's Hospital Colorado, Aurora, CO
Background/Purpose: There are 75,000 children affected by JIA in the United States. Despite recent therapeutic advances, treatment often requires chronic therapy and is associated with…
Abstract Number: 35 • 2017 Pediatric Rheumatology Symposium
Kv1.3 Expression on Urinary Leukocytes in Lupus Nephritis: Potential for Targeted Immunotherapy
Anne Stevens¹, Andrew Hinkle², Megan Yuasa³, David Peckham⁴, Chelsea Olsen⁵, Craig Philips⁵, Shawn P. Iadonato⁴ and Peter Probst⁶, ¹University of Washington, Pediatrics, Seattle, WA, ²Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, ³Seattle Children’s Research Institute, Seattle, WA, ⁴Kineta Inc, Seattle, WA, ⁵KPI Therapeutics, Inc., Seattle, WA, ⁶Kineta, Inc, Seattle, WA
Background/Purpose: Lymphocyte activation depends upon a calcium signaling cascade that is regulated by voltage-gated potassium channels. Effector memory T cells (TEM), which are implicated in…
Abstract Number: 147 • 2017 Pediatric Rheumatology Symposium
Epigenetic and Transcriptomic Profiling of Primary Juvenile Idiopathic Arthritis Patient Cells: Better Understanding of Disease Pathogenesis
Lucas Picavet¹, Janneke Peeters², Sandra Coenen³, Arjan Boltjes⁴, Femke van Wijk⁵, Paul Coffer², Bas Vastert⁶ and Jorg van Loosdregt⁷, ¹Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands, ²Center for Molecular Medicine and Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands, ³University Medical Center Utrecht, Utrecht, Netherlands, ⁴Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ⁵Laboratory for Translational Immunity, University Medical Center Utrecht, Utrecht, Netherlands, ⁶Division of Pediatric Rheumatology, University Medical Center Utrecht, Utrecht, Netherlands, ⁷Division of Pediatrics, University Medical Center Utrecht, Utrecht, Netherlands
Background/Purpose: For many autoimmune diseases, including Juvenile Idiopathic Arthritis (JIA), the molecular mechanisms remain elusive. JIA can be used as a model to study autoimmune…
Abstract Number: 139 • 2017 Pediatric Rheumatology Symposium
Dysregulation of miRNA in mononuclear cells of patients with enthesitis related arthritis
Amita Aggarwal¹ and Sushma Singh², ¹Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India, ²Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
Background/Purpose: Enthesitis related arthritis (ERA) is the most common category of JIA in Asia. Identifying dysregulated microRNA may help in understanding the pathogenesis of ERA.…
Abstract Number: 15L • 2016 ACR/ARHP Annual Meeting
Selective Oral ROCK2 Inhibitor Reduces Clinical Scores in Patients with Psoriasis vulgaris and Normalizes Skin Pathology Via Concurrent Regulation of IL-17 and IL-10 Levels
Alexandra Zanin-Zhorov¹, Jonathan Weiss¹, Alissa Trzeciak¹, Carmen Arencibia¹, Seetharam Polimera¹, Wei Chen¹, Jingya Zhang¹, Melanie Nyuydzefe¹, Judilyn Fuentes-Duculan², Kathleen Bonifacio², Norma Kunjravia², Inna Cueto², Mark Berger¹, James Krueger², Samuel Waksal¹ and John Ryan¹, ¹Kadmon, New York, NY, ²Rockefeller University, New York, NY

Background/Purpose: Rho-associated kinase 2 (ROCK2) was shown to be implicated in regulation of autoimmunity in mice and humans1. Previous findings demonstrated that oral administration of…
Abstract Number: 922 • 2016 ACR/ARHP Annual Meeting
Negative Regulation of IL-17 Receptor Signaling By Regnase-1 Limits Immunopathology in a Mouse Model of Psoriatic Skin Disease
Sarah L. Gaffen¹, Leticia Monin², Nicole Ward³, Johann Gudjonsson⁴, Abhishek Garg⁵, Alicia Mathers² and Pappachan Kolattukudy⁶, ¹Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, ²University of Pittsburgh, Pittsburgh, PA, ³Case Western Reserve University, Cleveland, OH, ⁴Dermatology, University of Michigan, Ann Arbor, MI, ⁵Rheumatology/Clinical Immun, University of Pittsburgh, Pittsburgh, PA, ⁶University of Central Florida, Orlando, FL
Background/Purpose: IL-17 cytokines have emerged as drivers of autoimmunity. Indeed, the IL-17A-targeting antibody secukinumab (Cosentyx) was recently approved for treatment of plaque psoriasis, and shows…
Abstract Number: 1911 • 2016 ACR/ARHP Annual Meeting
Potent and Selective Tyk2 Inhibitor Highly Efficacious in Rodent Models of Inflammatory Bowel Disease and Psoriasis
Wenyan Miao¹, Craig Masse¹, Jeremy Greenwood², Rosana Kapeller¹ and William Westlin¹, ¹Nimbus Therapeutics, Cambridge, MA, ²Schrodinger Inc., New York, NY
Background/Purpose: Tyk2 is a member of the JAK family kinases and is a key mediator of IL-12, IL-23, and type I interferon signaling. These cytokines…
Abstract Number: 2059 • 2016 ACR/ARHP Annual Meeting
Serine/Arginine-Rich Splicing Factor 1 (SRSF1) Is a Novel Factor in T Cell Homeostasis and Its Selective Loss in T Cells Causes Autoimmunity and Lupus-like Nephritis
Vaishali R. Moulton¹, Hao Li², Michael W. Mosho², Andrew R. Gillooly², Meghan L. Keane³ and George C. Tsokos⁴, ¹Division of Rheumatology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ²Medicine/ Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ³Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ⁴Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
Background/Purpose: T cells from patients with systemic lupus erythematosus (SLE) express reduced amounts of the critical CD3 zeta signaling chain, and produce low levels of…
Abstract Number: 2931 • 2016 ACR/ARHP Annual Meeting
Endogenous Nur77 Is a Specific Indicator of Antigen Receptor Signaling in Human T and B Cells
Judith Ashouri and Arthur Weiss, Department of Medicine, Division of Rheumatology, 1Howard Hughes Medical Institute, Rosalind Russell and Ephraim P. Engleman Rheumatology Research Center, University of California, San Francisco, San Francisco, CA
D Intracellular Nur77 protein amounts were assessed by immunofluorescence and flow cytometry in T and B cells isolated from human PBMCs stimulated through their Ag…
Abstract Number: 1029 • 2016 ACR/ARHP Annual Meeting
Functional Genetics of PTPN2 in Rheumatoid Arthritis: Haploinsufficiency of PTPN2 Promotes Severity of Th17-Cell Mediated Autoimmune Arthritis
Mattias N. D. Svensson^1,2, Karen M. Doody¹, Cristiano Sacchetti^1,2, Dennis J. Wu¹, Gisen Kim³, Annelie Hellvard⁴, Brith Bergum⁴, Piotr Mydel⁴, Mitchell Kronenberg³, Michel L. Tremblay⁵ and Nunzio Bottini^1,2, ¹Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ²Department of Medicine, University of California, San Diego, La Jolla, CA, ³Developmental Immunology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ⁴Clinical Science, Broegelmann Research Laboratory, Bergen, Norway, ⁵Goodman Cancer Centre, McGill University, Montréal, QC, Canada
Background/Purpose: Genome-wide association studies have linked polymorphisms in the PTPN2 locus to rheumatoid arthritis (RA). PTPN2 encodes the tyrosine phosphatase TC-PTP, an important regulator of…
Abstract Number: 1912 • 2016 ACR/ARHP Annual Meeting
A New Avenue of Immune Regulation Conferred By Self-Glycerophospholipids Via Mobilization and Migration of Myeloid-Derived Suppressor Cells
Ramesh Halder¹ and Ram R. Singh^1,2,3, ¹Autoimmunity and Tolerance Laboratory, Department of Medicine/Rheumatology, UCLA, Los Angeles, CA, ²Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, CA, ³Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA
Background/Purpose: Lipids function as essential components of biological membranes, as signaling molecules, and as energy storage molecules. Glycerol-based phospholipids, called glycerophospholipids (GPL), are the most…
Abstract Number: 2089 • 2016 ACR/ARHP Annual Meeting
Deviation of T and B Cell Subset and Its Association with Single Nucleotide Polymorphisms in Patients with Antiphospholipid Syndrome
Ryo Hisada¹, Masaru Kato¹, Hisako Nakagawa², Eri Sugawara¹, Masatoshi Kanda¹, Kazumasa Ohmura¹, Ikuma Nakagawa¹, Kenji Oku¹, Toshiyuki Bohgaki¹, Olga Amengual¹, Tetsuya Horita¹, Shinsuke Yasuda¹ and Tatsuya Atsumi¹, ¹Division of Rheumatology, Endocrinology and Nephrology, Hokkaido University Graduate School of Medicine, Sapporo, Japan, ²Department of Probiotics Immunology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
Background/Purpose: Antiphospholipid syndrome (APS) is a well-characterized autoimmune and thrombotic disorder but its pathogenesis remains to be elucidated. Genomic studies have revealed the association of signal…
Abstract Number: 2932 • 2016 ACR/ARHP Annual Meeting
HLA-DR3 Restricted Response to Lupus-Related Auto-Antigen Smd: Autoreactive T Cells Are Inherent in Normal Immune Repertoires
Zhenhuan Zhao¹, Jiling Ren¹, Chao Dai², Carol Kannapell¹, Qian Wang³, Felicia Gaskin⁴ and Shu Man Fu⁵, ¹Medicine/CIIR/Rheumatology, University of Virginia, Charlottesville, VA, ²Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, VA, ³University of Virginia, Charlottesville, VA, ⁴Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA, ⁵Department of Medicine, University of Virginia, Charlottesville, VA
Background/Purpose: HLA class II is the major susceptibility region for systemic lupus erythematosus (SLE) and other autoimmune disorders such as rheumatoid arthritis, multiple sclerosis and…
Abstract Number: 1449 • 2016 ACR/ARHP Annual Meeting
The Efficiency of the Regulation of Ca2+ Entry through Calcium Release-Activated Calcium Channel in the Treatment of Rheumatoid Arthritis
Shuang Liu¹, Hitoshi Hasegawa², Takeshi Kiyoi³, Tatsuya Sawasaki⁴ and Kazutaka Maeyama⁵, ¹Dept. Pharmacology,, Ehime University Graduate School of Medicine, Toon-shi, Japan, ²Department of Bioregulatory Medicine, Ehime University Graduate School of Medicine, Toon, Japan, ³Bioscience, Integrated Center for Sciences, Ehime University, Ehime, Japan, ⁴Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, Japan, ⁵Department of Pharmacology, Informational Biomedicine, Ehime University Graduate School of Medicine, Toon-shi, Ehime, Japan
Background/Purpose: The regulation of Ca2+ entry by targeting a store-operated calcium release-activated channel (CRAC), known as ORAI, has shown benefits in the treatment of rheumatoid…
Abstract Number: 1913 • 2016 ACR/ARHP Annual Meeting
B Cell Depletion Therapy Impact CD8 T Cells in ANCA-Associated Vasculitis
Antoine Néel^1,2, Marie Bucchia³, Aurelie Caristan¹, Mélanie Néel², Marie Rimbert⁴, Christian Agard¹, Maryvonne Hourmant⁵, Gaelle Tilly², Michelle Yap², François Perrin¹, Pascal Godmer⁶, Julie Graveleau¹, Sophie Brouard², Celine Bressollette⁷, Fadi Fakhouri⁸, Mohamed Hamidou⁹ and Nicolas Degauque², ¹Internal Medicine Department, Nantes University Hospital, Nantes, France, ²INSERM U1064, Nantes, France, ³Pediatrics, Nantes University Hospital, Nantes, France, ⁴Immunology Laboratory, Nantes University Hospital, Nantes, France, ⁵Nephrology, Nantes University Hospital, Nantes, France, ⁶CH Vannes, Vannes, France, ⁷Virology Laboratory, Nantes University Hospital, Nantes, France, ⁸Nephrology Department, Nantes University Hospital, Nantes, France, ⁹Internal Medicine Department, Internal Medicine Department, Nantes University Hospital, Nantes, France
Background/Purpose: In anti-neutrophil cytoplasmic antibodies associated vasculitis (AAV), several clues suggest that the efficacy of B cell depletion therapy lies beyond the suppression of ANCA-producing…

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