Abstracts tagged "T-Lymphocyte"

Abstract Number: 0077 • ACR Convergence 2023
Circulating CD4+CXCR5-PD-1hiICOS+ Cells Are Elevated in Patients with Newly Diagnosed Giant Cell Arteritis and Associate with the Clinical Outcome
Maria-Eugenia Miranda-Carus¹, Beatriz Nieto-Carvalhal¹, Irene Monjo², Mariela Uyaguari-Morocho¹, Irene Casado-Juárez³, Alejandro Balsa⁴ and Eugenio De Miguel⁴, ¹Hospital Universitario La Paz - IdiPAZ, Madrid, Spain, ²University Hospital La Paz, Madrid, Spain, ³Hospital La Paz - IdiPAZ, Madrid, Spain, ⁴Hospital Universitario La Paz, Madrid, Spain
Background/Purpose: Giant cell arteritis (GCA) is a large-vessel granulomatous vasculitis. It is characterized by the presence at the inflamed arterial walls, of activated PD-1+ CD4…
Abstract Number: 1778 • ACR Convergence 2023
Role of GITR/GITRL Interaction in Modulating T Helper 9, T Helper 17 and T Regulatory Response in Psoriatic Arthritis
Chiara Rizzo¹, Lidia La Barbera¹, Marianna Lo Pizzo¹, Leila Mohammadnezhad¹, federica Camarda¹, Francesco Dieli¹, Francesco Ciccia² and Giuliana Guggino¹, ¹University of Palermo, Palermo, Italy, ²University of Campania - Luigi Vanvitelli, Naples, Italy
Background/Purpose: The inflammatory process characterizing Psoriatic Arthritis (PsA) is mainly driven by interleukin (IL)-23/IL-17 axis and IL-9 overexpression, in presence of T helper (Th)17 and…
Abstract Number: 0087 • ACR Convergence 2023
Immune Checkpoint Inhibitor Therapy Expands an Activated, anti-PD-1 Drug-bound CD8 T Cell Population That Is Clonally Linked in Blood and Synovial Fluid of ICI-arthritis Patients
Kathryne Marks¹, Anvita Singaraju², Runci Wang³, Ifeoluwakiisi Adejoorin¹, Miriam Fein², Michael Postow⁴, Karmela Kim Chan², Anne Bass⁵, Laura Donlin² and Deepak Rao¹, ¹Brigham and Women's Hospital, Boston, MA, ²Hospital for Special Surgery, New York, NY, ³Renji hospital, Shanghai Jiaotong University, Pudong Xinqu, China, ⁴Memorial Sloan Kettering Cancer Center, New York, NY, ⁵Hospital for Special Surgery, Weill Cornell Medicine, New York, NY
Background/Purpose: Immune checkpoint inhibitor (ICI) therapies used to treat cancer can induce immune related Adverse events (irAEs) such as ICI-induced arthritis (ICI-arthritis). We have previously…
Abstract Number: 1790 • ACR Convergence 2023
Expansion of CD8+ TCRVβ9+ T Cells in the Peripheral Blood of HLA-B27+ Patients with Axial Spondyloarthritis
Caroline Bauchiero¹, Micah Lefton¹, Stephanie Sinnappan², Jeffrey Sparks³ and Joerg Ermann⁴, ¹Brigham and Women's Hospital, Boston, MA, ²Columbia University, New York, NY, ³Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, ⁴Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
Background/Purpose: Studies in human HLA-B27 transgenic rats largely discredited the idea that CD8+ T cells are key drivers of disease in axial spondyloarthritis (axSpA). However,…
Abstract Number: 1180 • ACR Convergence 2022
Deficiency and Altered Phenotype of Mucosal-associated Invariant T Cells in Systemic Sclerosis
Manon Lesturgie-Talarek¹, Virginie Gonzalez¹, Camelia Frantz², Noémie Sénot¹, Zouriatou Gouda¹, Camille Rousseau¹, Lucie Beaudoin¹, Agnès Lehuen¹, Jérôme Avouac³ and Yannick Allanore⁴, ¹INSERM U1016, Institut Cochin, Paris, France, ²Hôpital Cochin, AP-HP Centre - Université Paris Cité, Paris, France, ³University of Paris, Paris, France, ⁴Department of Rheumatology A, Descartes University, APHP, Cochin Hospital, Paris, France, Paris, France
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune disease characterized by fibrosis of the skin and internal organs such as the lung. Mucosal-associated invariant T (MAIT)…
Abstract Number: 1705 • ACR Convergence 2022
Peptidoglycan Amplifies CD4+ T Cell Activation by MHCII+ Fibroblast-like Synoviocytes in an in Vitro Model of Lyme Arthritis
Joseph Rouse¹, Amanda Wahhab¹, Rebecca Danner¹, Brandon Jutras², Adam Edelstein³, Klemen Strle⁴ and Robert Lochhead⁵, ¹Medical College of Wisconsin, Milwaukee, WI, ²Virginia Tech, Blacksburg, VA, ³Northwestern Medicine, Chicago, IL, ⁴Wadsworth Center, Albany, NY, ⁵Medical College of Wisconsin, Germantown, WI
Background/Purpose: Lyme arthritis (LA), caused by infection with Borrelia burgdorferi (Bb), is characterized by proliferative synovitis accompanied by dysregulated autoimmune Th1 responses. Fibroblast-like synoviocytes (FLS)…
Abstract Number: 1739 • ACR Convergence 2022
Single-Cell Characterization of the TCR Repertoire Across Tissue and Blood in Rheumatoid Arthritis
Garrett Dunlap¹, Aaron Wagner², Nida Meednu³, Anna Jonsson⁴, Fan Zhang⁵, Kevin Wei⁶, Paul Utz⁷, William Robinson⁷, Holden Maecker⁷, Judith James⁸, Joel Guthridge⁸, S. Louis Bridges, Jr.⁹, Laura Donlin⁹, Susan Goodman⁹, Edward DiCarlo⁹, Vivian Bykerk⁹, Christopher Ritchlin¹⁰, Darren Tabechian¹¹, James Lederer⁴, Ellen Gravallese¹², Mandy McGeachy¹³, Gary S. Firestein¹⁴, Peter Gregersen¹⁵, Diane Horowitz¹⁶, David Boyle¹⁷, Laura Geraldino-Pardilla¹⁸, Harris Perlman¹⁹, Arthur Mandelin²⁰, Joan Bathon¹⁸, Laura Hughes²¹, V. Michael Holers²², Kevin D Deane²³, Larry Moreland²², Andrew Filer²⁴, Costantino Pitzalis²⁵, Lindsy Forbess²⁶, Ami Ben-artzi²⁷, Karen Salomon-Escoto²⁸, Soumya Raychaudhuri⁴, Michael Brenner¹², Accelerating Medicines Partership (AMP) RA/SLE Network²⁹, Andrew McDavid², Jennifer Anolik³ and Deepak Rao⁴, ¹Harvard University, Boston, MA, ²University of Rochester, Rochester, NY, ³University of Rochester Medical center, Rochester, NY, ⁴Brigham and Women's Hospital, Boston, MA, ⁵University of Colorado, Aurora, CO, ⁶Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁷Stanford University School of Medicine, Palo Alto, CA, ⁸Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁹Hospital for Special Surgery, New York, NY, ¹⁰Allergy, Immunology and Rheumatology Division, University of Rochester Medical School, Canandaigua, NY, ¹¹URMC, Rochester, NY, ¹²Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ¹³University of Pittsburgh, Pittsburgh, PA, ¹⁴University of California, San Diego, San Diego, CA, ¹⁵The Feinstein Inst for Med Research, Larchmont, NY, ¹⁶Northwell Health, Jericho, NY, ¹⁷UCSD, La Jolla, CA, ¹⁸Columbia University, New York, NY, ¹⁹Northwestern University, Chicago, IL, ²⁰Northwestern University Feinberg School of Medicine, Chicago, IL, ²¹University of Alabama at Birmingham, Birmingham, AL, ²²University of Colorado, Denver, CO, ²³University of Colorado Denver Anschutz Medical Campus, Denver, CO, ²⁴University of Birmingham, Birmingham, United Kingdom, ²⁵Queen Mary University of London, London, United Kingdom, ²⁶Cedars-Sinai Medical Center, Los Angeles, CA, ²⁷Ami Ben-Artzi, MD Inc., Beverly Hills, CA, ²⁸University of Massachusetts Medical School, Worcester, MA, ²⁹National Institutes of Health, Washington, DC
Background/Purpose: In rheumatoid arthritis (RA), T cells represent a large proportion of the immune population present in inflamed joint synovium, and subsets of both CD4+…
Abstract Number: 1743 • ACR Convergence 2022
Identification of Immune Cell Types in the Peripheral Blood of Rheumatoid Arthritis Patients Associated with Susceptibility and Response to Treatment
Maria Christofi¹, Ben Mulhearn², Lysette Marshall¹, Megan Sutcliffe¹, Darren Plant¹, Kimme Hyrich¹, Ann Morgan³, Anthony Wilson⁴, John D Isaacs⁵, Soumya Raychaudhuri⁶, Anne Barton¹ and Sebastien Viatte¹, ¹The University of Manchester, Manchester, United Kingdom, ²Royal United Hospital Bath | University of Bath, Bath, United Kingdom, ³University of Leeds, Leeds, United Kingdom, ⁴University College Dublin, Dublin, Ireland, ⁵Institute for Translational and Clinical Research, Newcastle University and Musculoskeletal Unit, Newcastle upon Tyne Hospitals, Newcastle upon Tyne, United Kingdom, ⁶Brigham and Women's Hospital, Boston, MA
Background/Purpose: Rheumatoid arthritis (RA) is a complex immune mediated disease that affects 1% of the population. Even with modern therapeutic strategies, many patients with RA…
Abstract Number: 1744 • ACR Convergence 2022
Immune Responses to mRNA Vaccines Against SARS-CoV-2 in Patients with Immune-mediated Inflammatory Rheumatic Diseases
Cristiana Sieiro Santos¹, Sara Calleja Antolín¹, Clara Moriano Morales², Carolina Álvarez Castro¹, Elvira Díez Álvarez¹ and Jose Maria Ruiz de Morales¹, ¹Complejo Asistencial Universitario de León, León, Spain, ²Hospital León, León, Spain
Background/Purpose: Patients with immune-mediated rheumatic diseases (IMRDs) are commonly treated with immunosuppressors and prone to infections. Recently introduced mRNA SARS-CoV-2 vaccines have demonstrated extraordinary efficacy…
Abstract Number: 1747 • ACR Convergence 2022
Changes in the Number and Phenotype of Citrullinated-Antigen Specific T Cells Correlate with Treatment Outcome in Seropositive Rheumatoid Arthritis
Cliff Rims¹, Virginia Muir¹, Anne Hocking¹, Sylvia Posso¹, Heather Bukiri², Jeffrey Carlin³, Bernard Ng⁴, Peter Linsley¹, Eddie James⁵ and Jane Buckner⁵, ¹Benaroya Research Institute, Seattle, WA, ²University of California Los Angeles, Los Angeles, CA, ³Virginia Mason Medical Center, Seattle, WA, ⁴VA Puget Sound HCS, Seattle, WA, ⁵Benaroya Research Institute at Virginia Mason, Seattle, WA
Background/Purpose: In Rheumatoid arthritis (RA) citrullinated antigen reactive T cells are key drivers of disease, but knowledge about their relative number and phenotype remains limited.…
Abstract Number: 2183 • ACR Convergence 2022
mTORC2 Contributes to Murine Systemic Autoimmunity
Xian Zhou¹, Haiyu Qi¹, Meilu Li¹, Yanfeng Li¹, Xingxing Zhu², Anne Davidson³ and Hu Zeng¹, ¹Mayo Clinic, Rochester, MN, ²Mayo Clinic, Rochester, ³Feinstein Institutes for Medical Research, Manhasset, NY
Background/Purpose: The development of many systemic autoimmune diseases, including systemic lupus erythematosus, is associated with overactivation of the type I interferon (IFN) pathway, lymphopenia, and…
Abstract Number: 1480 • ACR Convergence 2021
LncRNA XIST Alters the Balance of Peripheral Blood Immune Cells in Systemic Lupus Erythematosus by Regulating the miR-17-92/OFLM4 and CEACAM8 Axis
Qi Cheng, Mo Chen, xin Chen, peiyu zhang, huaxiang wu and yan du, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (People's Republic)
Background/Purpose: X-inactive-specific transcript (XIST) has been shown to silence linked genes on the X chromosome that may be related to the pathogenesis of systemic lupus…
Abstract Number: 1513 • ACR Convergence 2021
Control of T Cell Tolerance by the NR4A Family of Nuclear Receptors
Ryosuke Hiwa¹, Hailyn Nielsen¹, James Mueller¹ and Julie Zikherman², ¹University of California San Francisco, San Francisco, CA, ²UCSF Medical Center, San Francisco, CA
Background/Purpose: Current therapies for autoimmune disease often lead to treatment-limiting immunosuppression. Selective manipulation of antigen (Ag)-specific immune responses could enhance our therapeutic approach. Targeting members…
Abstract Number: 0025 • ACR Convergence 2021
The Modulatory Capacity of Galectin-3 on the Programmed Death-1 Signaling Axis in Rheumatoid Arthritis
Kathrine Pedersen¹, Morten Aagaard Nielsen², Malene Hvid¹, Bent Deleuran¹ and Stinne Greisen¹, ¹Aarhus University, Aarhus, Denmark, ²Aarhus University / Aarhus University Hopital, Aarhus, Denmark
Background/Purpose: Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by inflammation of the synovium. Despite a variety of treatments, 30-40% of RA patients fail…
Abstract Number: 0056 • ACR Convergence 2021
Peripheral Blood Immune Cell Profiling in Psoriatic Arthritis: Comparison of Patients with Healthy Controls
Lihi Eder¹, Darshini Ganatra² and Vinod Chandran³, ¹University of Toronto, Toronto, ON, Canada, ²University Health Network, Toronto, ON, Canada, ³Schroeder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital, Toronto, ON, Canada
Background/Purpose: Heterogeneity in immune cell populations among patients with psoriatic arthritis (PsA) may determine disease expression and treatment response. The objective of this study was…

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