Abstracts tagged "T cells"

Abstract Number: 1889 • ACR Convergence 2021
Arthritogenic T Cells Harbor a Transcriptional Program of T Cell Activation and a Repertoire Pruned by Endogenous Superantigen
JUDITH F ASHOURI, Elizabeth McCarthy, Steven Yu, Noah Perlmutter, Charles Lin, Chun Jimmie Yu and Arthur Weiss, University of California San Francisco, San Francisco, CA
Background/Purpose: It is widely accepted that activation of specific CD4 T cells through their TCRs by self-antigen (Ag) is necessary for rheumatoid arthritis (RA) onset.…
Abstract Number: 0969 • ACR Convergence 2021
Loss of Balance Between Protective and Pro-inflammatory Synovial Tissue T Cell Polyfunctionality Predates Clinical Onset of Rheumatoid Arthritis
Achilleas Floudas¹, Nuno Neto², Carl Orr³, Mary Canavan⁴, Phil Gallagher³, Conor Hurson⁵, Michael Monaghan², Nagpar Sunil⁶, Ronan Mullan⁷, Douglas Veale⁸ and Ursula Fearon², ¹Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Ireland, ²Trinity College Dublin, Dublin, Ireland, ³St Vincent's Hospital, Dublin, Ireland, ⁴Trinity College, Santry, Ireland, ⁵St Vincents University Hospital, Dublin, Ireland, ⁶Janssen R&D, Spring House, PA, ⁷Tallaght University Hospital, Dublin, Ireland, ⁸University College Dublin, Dublin, Ireland
Background/Purpose: Effective treatment of Rheumatoid arthritis (RA) patients is achievable within a short window of opportunity. T-cells are early drivers of synovial inflammation of RA,…
Abstract Number: 1505 • ACR Convergence 2021
Inflammatory Dendritic Cell and Th17 Polarization in Mouse Model of Lupus Nephritis
Latha Prabha Ganesan¹, Noushin Saljoughian¹, James Turman¹, Murugesan Rajaram¹, Brad Rovin², Wael Jarjour¹ and Samir Parikh², ¹Ohio State University, Columbus, OH, ²Ohio State University Wexner Medical Center, Columbus, OH
Background/Purpose: We have recently identified inflammatory dendritic cells (InfDC) in human lupus kidneys. These cells are over expressed in LN patients compared to healthy controls.…
Abstract Number: 1506 • ACR Convergence 2021
SLAMF6 Compartmentalization Regulates Autoimmune T Cell Responses
Yevgeniya Gartshteyn¹, Anca Askanase² and Adam Mor³, ¹Columbia University Medical Center, Glen Rock, NJ, ²Columbia University Medical Center, New York, NY, ³CUIMC, New York, NY
Background/Purpose: T cell activation is initiated by engagement of the T cell receptor (TCR) complex and requires co-receptor signaling. SLAMF6 is a major T cell…
Abstract Number: 154 • 2020 Pediatric Rheumatology Symposium
T Helper Cell Differentiation in Polyarticular Juvenile Idiopathic Arthritis
Anna Patrick¹, Tashawna Esmond ², David Flaherty ², Thomas Brent Graham ², Susan Thompson ³ and Thomas Aune ¹, ¹Vanderbilt University Medical Center, Nashville, Tennessee, ²Vanderbilt University Medical Center, Nashville, ³Cincinnati Children's Hospital Medical Center/Univ of Cincinnati College of Medicine, Cincinnati
Background/Purpose: Juvenile idiopathic arthritis (JIA) is the most common autoimmune arthritis in children. Polyarticular JIA and extended oligoarticular JIA both have genetic associations near genes…
Abstract Number: 166 • 2020 Pediatric Rheumatology Symposium
Resident Memory T Cells in Human RA Synovium Display Restricted TCR Clones
Margaret Chang¹, Anais Levescot ², Nathan Nelson-Maney ³, Rachel Blaustein ⁴, Kellen Winden ¹, Allyn Morris ⁴, Spoorthi Balu ⁴, Alexandra Wactor ⁴, Kevin Wei ⁵, Lauren Henderson ⁶, Rachael Clark ⁴, Deepak Rao ⁴, Robert Fuhlbrigge ⁷ and Peter Nigrovic ⁸, ¹Boston Children's Hospital, Boston, ²Boston, ³, ⁴Brigham and Women's Hospital, Boston, ⁵BWH, Boston, ⁶Boston Children's Hospital, Watertown, Massachusetts, ⁷University of Colorado, Aurora, ⁸Boston Children's Hospital, Boston, Massachusetts
Background/Purpose: Resident memory T cells (TRM) are site-specific memory T cells that take up long-term residence in peripheral tissues and aid in pathogen defense. Dysregulated…
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…
Abstract Number: 1774 • 2019 ACR/ARP Annual Meeting
Potential Involvement of OX40 Expressing Tfh Cells on Regulation of Autoantibody Sialylation in Experimental and Rheumatoid Arthritis
Izumi Kurata¹, Isao Matsumoto ¹, Natsuko Mikami ¹, Ayako Ohyama ¹, Atsumu Osada ¹, Yuya Kondo ¹, Hiroto Tsuboi ¹ and Takayuki Sumida ¹, ¹Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
Background/Purpose: Recently, IL-23-Th17 cells axis and hyposialylation of antibodies were proved to be linked to experimental and rheumatoid arthritis. However it remains uncertain how Tfh,…
Abstract Number: 97 • 2019 ACR/ARP Annual Meeting
Low Frequency of Circulating T Follicular Helper 1 Cells Is Associated to Adequate Response to Adalimumab Therapy in Rheumatoid Arthritis
Charlotte Lucas¹, Roussine Codo ², Jean-David Albert ³, Rachel Jean ², Stéphane Rodriguez ⁴, Patricia Amé-Thomas ⁵ and Aleth Perdriger ⁶, ¹Rheumatology department, Rennes University Hospital, France, Rennes, Bretagne, France, ²SITI Laboratory, Rennes University Hospital, EFS, INSERM1236, France, Rennes, Bretagne, France, ³Rheumatology department, Rennes University Hospital and Institut NUMECAN, INSERM U 1241, Rennes, Bretagne, France, ⁴PhD, SITI Laboratory, Rennes University Hospital, EFS, INSERM1236, France, Rennes, Bretagne, France, ⁵SITI Laboratory, Univ Rennes, Rennes University Hospital, EFS, INSERM1236, France, Rennes, Bretagne, France, ⁶Rheumatology department, Rennes University Hospital, France, Rennes, France
Background/Purpose: T follicular helper cells (Tfh) constitute a distinct CD4+ helper T-cell subset, promoting B-cell maturation and activation. Circulating Tfh (cTfh) seem to play a…
Abstract Number: 2035 • 2019 ACR/ARP Annual Meeting
Systemic Lupus Erythematosus (SLE) Is Caused by Expanded DOCK8-Positive Autoantibody-Inducing CD4 T (aiCD4 T) Cell
Shunichi Shiozawa¹, Ken Tsumiyama ¹, Yumi Miyazaki ², Keiichi Sakurai ³, Takahiko Horiuchi ⁴, Motohiro Oribe ⁵, Takashi Yamane ⁶, Hidetoshi Kagawa ⁷ and Kazuko Shiozawa ⁸, ¹Institute for Rheumatic Diseases, Ashiya, Japan, ²Kyushu University Beppu Hospital, Tokyo, Japan, ³Rheumatology and Allergology, St. Marianna University School of Medicine, Tokyo, Japan, ⁴Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Japan, Beppu, Japan, ⁵Oribe Rheumatology Clinic, Oita, Japan, ⁶Department of Rheumatology, Kakogawa Central City Hospital, Kakogawa, Japan, ⁷Rheumatology, Red Cross Society Himeji Hospital, Himeji, Japan, ⁸Rheumatic Diseases Center, Hyogo Prefectural Kakogawa Medical Center, Ashiya, Japan
Background/Purpose: We previously found in reproducible experiments in which the mice not prone to autoimmune disease were immunized repeatedly with antigen that overstimulation of CD4…
Abstract Number: 102 • 2019 ACR/ARP Annual Meeting
Serine Arginine-Rich Splicing Factor 1 (SRSF1) Restrains IFN-γ and IL-17 Inflammatory Cytokine Production and Its Selective Deficiency in T Cells Exacerbates Experimental Autoimmune Encephalomyelitis (EAE) and Nephrotoxic Nephritis (NTN)
Takayuki Katsuyama¹, Kotaro Otomo ¹, Hao Li ², Michihito Kono ³, Nobuya Yoshida ¹, George Tsokos ¹ and Vaishali R. Moulton ¹, ¹Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ²Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, ³Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
Background/Purpose: CD4 T helper 1 (Th1) and Th17 cells producing IFN-γ and IL-17 are aberrantly increased and contribute to inflammatory responses in autoimmune diseases including…

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