Abstracts tagged "T cells"

Abstract Number: 2819 • 2019 ACR/ARP Annual Meeting
The Transcription Factor MAF Controls the Ability of T Peripheral Helper (Tph) Cells to Help B Cells
Alexandra Bocharnikov¹, Vanessa Wacleche ¹, Ye Cao ¹ and Deepak Rao ², ¹Brigham and Women's Hospital, Boston, ²Brigham and Women's Hospital, Boston, MA
Background/Purpose: Pathologic T cell-B cell interactions are hallmark features of many autoimmune diseases. PD-1hi CXCR5- T peripheral helper (Tph) cells are B cell-helper T cells…
Abstract Number: 500 • 2019 ACR/ARP Annual Meeting
The Dysregulation of NK Cells and Non-Conventional NK-T and γδ-T Cells in Individuals at Risk of Developing Rheumatoid Arthritis
Klára Prajzlerová¹, Olga Kryštůfková ², Petra Hánová ³, Hana Hulejová ³, Monika Gregová ¹, Nora Petrovská ¹, Herman Mann ⁴, Karel Pavelka ⁴, Jiří Vencovský ⁴, Ladislav Senolt ⁴ and Mária Filková ¹, ¹Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ²Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Prague, Czech Republic, Prague, Czech Republic, ³Institute of Rheumatology, Prague, Czech Republic, ⁴Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Prague, Czech Republic, Prague 2, Czech Republic
Background/Purpose: The positivity of antibodies against citrullinated proteins (ACPA) precedes the clinical manifestation and significantly increases the risk of rheumatoid arthritis (RA). EULAR characterised individuals…
Abstract Number: 2897 • 2019 ACR/ARP Annual Meeting
Increased CD69+ Tissue-resident Memory T (TRM) Cells and STAT3 Expression in Cutaneous Lupus Erythematosus Patients Recalcitrant to Antimalarials
Majid Zeidi ¹, Kristen Chen ¹, Krisha Desai ¹, Hee Joo Kim ², Srita Chakka ³, Rachel Lim ⁴ and Victoria Werth¹, ¹Corporal Michael J. Crescenz VAMC, Philadelphia, PA, USA and Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA, Philadelphia, PA, ²Corporal Michael J. Crescenz VAMC, Philadelphia, PA, USA andDepartment of Dermatology, University of Pennsylvania, Philadelphia, PA, USA and Department of Dermatology, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea, Republic of (South), Philadelphia, ³Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA, Philadelphia, ⁴Corporal Michael J. Crescenz VAMC, Philadelphia, PA, USA, Philadelphia
Background/Purpose: Cutaneous lupus erythematosus (CLE) is an autoimmune disease with various subsets and clinical manifestations. T lymphocytes are the predominant cell type found in lesional…
Abstract Number: 588 • 2019 ACR/ARP Annual Meeting
The Gut Enthesis Axis Coming into Focus with the Description of Enriched Entheseal Resident Mucosal Associated Invariant T-cells (MAITs) Capable of IL17A and TNF Production
Richard Cuthbert ¹, Qiao Zhou ², Abdulla Watad ³, Robert Dunsmuir ⁴, Peter Loughenbury ⁴, Almas Khan ⁴, Peter Milner ⁴, Charles Bridgewood ⁵ and Dennis McGonagle², ¹University of Leeds, Leeds, ²University of Leeds, Leeds, United Kingdom, ³Department of Medicine “B”, Zabludowicz Center for Autoimmune Diseases Sheba Medical Center, Ramat-Gan, Israel, ⁴Leeds Teaching Hospitals NHS Trust, Leeds, ⁵Leeds Institute of Rheumatic and Muscoskeletal Medicine(LIRMM), University of Leeds, Leeds, United Kingdom
Background/Purpose: Mucosal associated invariant T-cells (MAITs) are innate-like T lymphocytes that express a semi-invariant TCR repertoire that are activated by microbial ligands or cytokines including…
Abstract Number: 2918 • 2019 ACR/ARP Annual Meeting
Metabolic Signatures of Pathogenic T Cells in Medium and Large Vessel Vasculitis
Mitsuhiro Akiyama ¹, Hui Zhang ¹, Ryu Watanabe ¹, Toshihisa Maeda ², Gerald Berry ¹, Jorg Goronzy ¹ and Cornelia Weyand¹, ¹Stanford University, Stanford, CA, ²Matsubara Mayflower Hospital, Kobe, Japan
Background/Purpose: Giant cell arteritis (GCA) is an autoimmune vasculitis that causes aortic arch syndrome, blindnesss, and stroke. Embedded in granulomatous infiltrates, CD4 T cells persist…
Abstract Number: 596 • 2019 ACR/ARP Annual Meeting
Prostaglandin Receptor EP4 Drives Pathogenic Th17 Cell Development in Ankylosing Spondylitis and Is a New Marker of Disease Activity
Anja Meyer¹, Charlotte Klasen ¹, Pauline Wittekind ¹, Iris Waqué ¹, Schafiq Nabhani ¹ and David Kofler ¹, ¹University of Cologne, Cologne, Germany
Background/Purpose: Th17 cells are involved in the pathogenesis of ankylosing spondylitis (AS). However, the mechanism underlying enhanced Th17 cell accumulation in AS remains unknown. The…
Abstract Number: 812 • 2019 ACR/ARP Annual Meeting
Sex Differences in Autoimmunity and Cardiovascular Risk Could Be Associated with Altered Treg Phenotype and Lipoprotein Metabolism
George Robinson¹, Kirsty Waddington ¹, Anna Radziszewska ¹, Hannah Peckham ¹, David A Isenberg ², Yiannis Ioannou ¹, Coziana Ciurtin ³, Ines Pineda-Torra ¹ and Elizabeth Jury ¹, ¹University College London, London, United Kingdom, ²Centre for Rheumatology, London, United Kingdom, ³Centre for Adolescent Rheumatology, University College London London, UK, Londond, United Kingdom
Background/Purpose: Males and females have altered immune responses resulting in variation in autoimmune risk. Sex differences exist in the frequency and activity of immune-cell subsets…
Abstract Number: 1004 • 2019 ACR/ARP Annual Meeting
Genetic Ablation of γδTCR Inhibits IL-23-induced Neutrophilia and Attenuates Epidermal Hyperplasia, Synovitis, Onycholysis and Enthesitis Associated with Psoriatic Arthritis
Cuong Nguyen¹, Trevor Chan ², Ilias Tagkopoulos ², Matthias Eberl ³ and Iannis Adamopoulos ¹, ¹Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis, Sacramento, CA, ²University of California, Davis, Department of Computer Science, California, USA, Davis, CA, ³Division of Infection and Immunity, School of Medicine and Systems Immunity Research Institute, Cardiff University, Cardiff CF14 4XN, United Kingdom, Cardiff, United Kingdom
Background/Purpose: γδ T cells are non-conventional lymphocytes that straddle between innate and adaptive immunity. Although γδ T cells have been implicated in psoriatic arthritis, the…
Abstract Number: 1025 • 2019 ACR/ARP Annual Meeting
Dynamic Changes During SLE Flare Implicate Age-Associated B Cells and Altered T Follicular and Peripheral Helper Cell Responses in Disease Activity
Kieran Manion¹, Zahi Touma ², Dennisse Bonilla ², Dafna Gladman ³, Murray Urowitz ² and Joan Wither ⁴, ¹Krembil Research Institute, Toronto, ON, Canada, ²University Health Network, University of Toronto, Toronto, ON, Canada, ³Krembil Research Institute, U of Toronto, Toronto, ON, Canada, ⁴University Health Network, Krembil Research Institute, Toronto, ON, Canada
Background/Purpose: SLE is a chronic autoimmune disorder in which periods of relative disease inactivity are punctuated by flares that present with increased inflammation and tissue…
Abstract Number: 1031 • 2019 ACR/ARP Annual Meeting
Expanded Circulating Peripheral Helper T Cells Are Associated with B Cell Differentiation in Systemic Lupus Erythematosus
Ayako Makiyama¹, Asako Chiba ², Daisuke Noto ¹, Goh Murayama ³, Tomohiro Mizuno ⁴, Taiga Kuga ⁵, Ken Yamaji ⁵, Naoto Tamura ⁵ and Sachiko Miyake ², ¹Juntendo University School of Medicine, Tokyo, Japan, ²Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan, ³Department of Internal Medicine and Rhumatology, Juntendo University School of Medicine, Tokyo, Japan, ⁴Department of Immunlogy, Juntendo University School of Medicine, Tokyo, Japan, ⁵Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan
Background/Purpose: Autoreactive T-B cell interactions in lymphoid tissue have been thought to play a crucial role in the autoantibody production in systemic lupus erythematosus (SLE).…
Abstract Number: 25 • 2019 ACR/ARP Annual Meeting
Altered Distribution and Enhanced Osteoclastogenesis of Mucosal-associated Invariant T Cells in Gouty Arthritis
Yong-Wook Park¹, Young-Nan Cho ¹, Hae-Seong Jeong ¹, Hye-Mi Jin ¹ and Seung-Jung Kee ¹, ¹Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
Background/Purpose: Mucosal-associated invariant T (MAIT) cells are subsets of innate invariant T cells and rapidly produce Th1/Th17 cytokines including interferon (IFN)-γ, tumor necrosis factor (TNF)-α,…
Abstract Number: 1069 • 2019 ACR/ARP Annual Meeting
CD4+ T Helper Cell Populations with High PD-1 Expression Are Expanded in Systemic Sclerosis
Alisa Mueller¹, Andrea Fava ², Deepak Rao ¹ and Francesco Boin ³, ¹Brigham and Women's Hospital, Boston, MA, ²Johns Hopkins University School of Medicine, Baltimore, MD, ³UCSF, San Francisco, CA
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune disease characterized by tissue fibrosis, vascular injury, and autoantibody production. CXCR5+ PD-1+ T follicular helper (Tfh) cells, which…
Abstract Number: 66 • 2019 ACR/ARP Annual Meeting
Amelioration of Immune Complex-Mediated Glomerulonephritis by CD6 Modulation
Samantha Chalmers¹, Sayra Garcia ¹, Jeanette Ampudia ², Cherie Ng ², Stephen Connelly ² and Chaim Putterman ³, ¹Albert Einstein College of Medicine, Bronx, NY, ²Equillium, Inc, San Diego, CA, ³Albert Einstein College of Medicine, New York, NY
Background/Purpose: CD6 is a co-stimulatory receptor on T cells, that binds to activated leukocyte cell adhesion molecule (ALCAM), a ligand expressed on antigen presentation cells…
Abstract Number: 1455 • 2019 ACR/ARP Annual Meeting
B and T Cell Immunologic Features Associated with Higher Disease Activity Score and Focus Score in Primary Sjögren Syndrome
Alice Mai¹, Yuriy Baglaenko ², Dario Ferri ³, Kieran Manion ⁴, Dennisse Bonilla ⁵, Arthur Bookman ⁶ and Joan Wither ⁷, ¹University of British Columbia Department of Rheumatology, Vancouver, Canada, ²Brigham Woman's Hospital, Boston, ³University Health Network, Toronto, ON, Canada, ⁴Krembil Research Institute, Toronto, ON, Canada, ⁵University Health Network, University of Toronto, Toronto, ON, Canada, ⁶University Health Network, Toronto, Canada, ⁷University Health Network, Krembil Research Institute, Toronto, ON, Canada
Background/Purpose: Primary Sjögren syndrome (pSS) is a systemic autoimmune disease with an incompletely understood pathogenesis and heterogenous disease manifestations. Identifying cellular immune changes that may…
Abstract Number: 94 • 2019 ACR/ARP Annual Meeting
Tumor Necrosis Factor Receptor 2 Signaling Potentiates Proliferation and Suppressive Activities of Follicular Regulatory T Cells
Shotaro kawano¹, Hiroki Mitoma ², Shoichiro Inokuchi ³, Masahiro Ayano ², Yasutaka Kimoto ⁴, Mitsuteru Akahoshi ², Yojiro Arinobu ², Koichi Akashi ², Takahiko Horiuchi ⁵ and Hiroaki Niiro ⁶, ¹Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, ²Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Fukuoka, Japan, Fukuoka, Japan, ³Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Fukuoka, Japan, Fukuoka, Fukuoka, Japan, ⁴Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Japan, ⁵Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Japan, Beppu, Japan, ⁶Clinical Education Centre, Kyushu University Hospital, Fukuoka, Japan, Fukuoka, Japan
Background/Purpose: Tumor Necrosis Factor (TNF) α is a multifunctional cytokine with pro-inflammatory and anti-inflammatory characteristics. Regulatory T cells (Treg) express a remarkably high level of…

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