Abstracts tagged "T Cell"

Abstract Number: 2439 • ACR Convergence 2023
Proteomic and Genomic Profiling of Plasma Exosomes from Ankylosing Spondylitis Patients
Fataneh Tavasolian¹, starlee lively², Chiara Pastrello³, Michael Tang², Melissa Lim², Addison Pacheco², Zoya Qaiyum², Enoch Yau², Zeynep Baskurt⁴, Igor Jurisica⁵, Mohit Kapoor⁶ and Robert Inman², ¹Krembil Research Institute, University Health Network, Toronto, ON, Canada, ²University Health Network, Toronto, ON, Canada, ³Osteoarthritis Research Program, Division of Orthopaedic Surgery, Schroeder Arthritis Institute and Data Science Discovery Centre for Chronic diseases, Krembil Research Institute, Toronto, ON, Canada, ⁴Department of Biostatistics, University Health Network, Toronto, ON, Canada, ⁵Schroeder Arthritis Institute, Krembil Research Institute and Departments of Medical Biophysics and Computer Science and Faculty of Dentistry, University of Toronto and Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia, ⁶Division of Orthopaedics, Osteoarthritis Research Program, Schroeder Arthritis Institute, and Krembil Research Institute, University Health Network, Toronto, ON, Canada
Background/Purpose: Recent advances in understanding the biology of Ankylosing Spondylitis (AS) using innovative genomic and proteomic approaches offer the opportunity to address current challenges in…
Abstract Number: 0069 • ACR Convergence 2023
All-trans Retinoic Acid (atRA) Enhances FoxP3 Protein Stability Under Inflammatory Conditions Through Altering the FoxP3 Protein-interactome
William Willis¹, shane Bruckner² and wael Jarjour², ¹Ohio State University, Reynoldsburg, OH, ²Ohio State University, Columbus, OH
Background/Purpose: Treg cells play a central role in the tolerance of self-antigens and prevention of autoimmune disease. FoxP3 is a Treg-specific transcription factor that plays…
Abstract Number: 0088 • ACR Convergence 2023
SLAMF4 Orchestrates the Pathological Cytotoxic Response of CD4+ T Cells in Rheumatoid Arthritis
Megane Lacaud¹, Houda-Ghozlane Bouzidi¹, Magali breckler¹, Delphine Lemeiter², Luca Semerano³, Marie-Christophe Boissier³, Natacha Bessis⁴ and Jerome Biton², ¹Inserm UMR 1225, Université Sorbonne Paris Nord, Bobigny, France, ²Inserm UMR 1125, Université Sorbonne Paris Nord, Bobigny, France, ³Inserm UMR 1125, Université Sorbonne Paris Nord; Assistance Publique-Hôpitaux de Paris, Rheumatology department, Avicenne Hospital, Bobigny, France, ⁴Inserm UMR 1125, Université Sorbonne Paris Nord, Bobigny, France
Background/Purpose: CD4+ Foxp3- conventional T cells (Tconv) play a key role in the inflammatory process involved in rheumatoid arthritis (RA). Recent studies, aided by a…
Abstract Number: 0799 • ACR Convergence 2023
Human Chimeric Antigen Receptor (CAR)-Tregs Targeting OX40L for Treatment of Systemic Lupus Erythematosus
Holly Wobma¹, Xianliang Rui², Francesca Alvarez-Calderon², Ulrike Gerdemann², Connor McGuckin², Bruce Blazar³, Victor Tkachev⁴ and Leslie Kean², ¹Division of Immunology, Boston Children's Hospital, Boston, MA, ²Division of Hematology-Oncology, Boston Children's Hospital, Boston, MA, ³Division of Pediatric Blood & Marrow Transplant & Cellular Therapy, University of Minnesota, Minneapolis, MN, ⁴Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA
Background/Purpose: Chimeric Antigen Receptor Regulatory T cells (CAR-Tregs) are an emerging strategy to restore immune tolerance during auto- or allo-immune conditions. However, most autoimmune diseases…
Abstract Number: 1366 • ACR Convergence 2023
A Unique Cluster of Inflammatory Monocytes and Functionally Intact Regulatory T Cells in Rare Childhood Sjögren’s Disease
Myung-Chul Kim¹, Umasankar De², Nicholas Borcherding³, Joon Paek⁴, Nicole Winn⁵, Indraneel Bhattacharyya⁶, Qing Yu⁷, Ryan Kolb⁸, Theodore Drashansky⁹, Akaluck Thatayatikom¹⁰, Weizhou Zhang⁸ and Seunghee Cha¹¹, ¹Jeju National University, Jeju-si, South Korea, ²University of Florida, Gainesville, FL, ³Washington University School of Medicine in St. Louis, Washington, DC, ⁴Department of Oral & Maxillofacial Diagnostic Sciences, Gainesville, FL, ⁵Division of Oral Medicine, Department of Oral and Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL, ⁶Department of Oral & Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL, ⁷The Forsyth Institute, Cambridge, MA, ⁸Department of Pathology & Immunology, University of Florida, Gainesville, FL, ⁹Cellularity, Inc, Florham Park, NJ, ¹⁰AdventHealth for Children, Orlando, FL, Orlando, FL, ¹¹Department of Oral & Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry and Center for Orphaned Autoimmune Disorders (COAD), Gainesville, FL
Background/Purpose: This study was performed to characterize key immune cell subsets and their interactions in patients with childhood Sjögren's disease (cSjD) for the first time…
Abstract Number: 2463 • ACR Convergence 2023
Efficacy and Safety of Car-T-Cell Treatment in Refractory Antisynthetase Syndrome – Data of the First Three Patients
Jule Taubmann¹, Johannes Knitza², Fabian Müller³, Sebastian Boeltz¹, Simon Voelkl⁴, Michael Aigner⁴, Arnd Kleyer⁵, Ioanna Minnopoulou¹, Regina Gary⁴, Sascha kretschmann⁴, Andreas Mackensen⁴ and Georg Schett⁶, ¹Department of Internal Medicine 3, Rheumatology and Immunology, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen Nürnberg, Erlangen, Germany, ²Department of Internal Medicine 3 Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg, University Hospital Erlangen, Erlangen, Germany, ³Friedrich Alexander Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ⁴Department of Internal Medicine 5, Hematology and Oncology, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen Nürnberg, Erlangen, Germany, ⁵University Hospital Erlangen, Erlangen, Germany, ⁶Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
Background/Purpose: Antisynthetase syndrome (ASS) can be very severe affecting the lungs, the skin and the joints next to the muscles. ASS can take a refractory…
Abstract Number: 0071 • ACR Convergence 2023
Sex Based Differences in Morphological and Functional Niches of the Human Thymus, Identified by Non-supervised Spatial Transcriptomic Profiling, May Underlie Sex Bias in Autoimmune Disease
Viktoria Hennings, Anneke van Dijk, Andri Lemarquis, Christina Lundqvist and Olov Ekwall, University of Gothenburg, Gothenburg, Sweden
Background/Purpose: Females exhibit a more robust response to both self- and non-self-antigens than males which manifests as higher prevalence of autoimmune disease, eg. rheumatic diseases,…
Abstract Number: 0090 • ACR Convergence 2023
Reduced Frequency of RORγt+ Regulatory T Cells Is Associated with Secukinumab Response in Axial Spondyloarthritis
Addison Pacheco¹, Michael Tang¹, Sinead Maguire², Melissa Lim¹, Fataneh Tavasolian³, Zoya Qaiyum⁴ and Robert Inman¹, ¹University Health Network, Toronto, ON, Canada, ²Toronto Western Hospital, Toronto, ON, Canada, ³Krembil Research Institute, University Health Network, Toronto, ON, Canada, ⁴Krembil Research Institute, Toronto, ON, Canada
Background/Purpose: Axial spondyloarthritis (AxSpA) is an inflammatory disease that predominantly affects the spine and the sacroiliac joints. Dysregulation of Type 3 immunity has been implicated…
Abstract Number: 0800 • ACR Convergence 2023
CD4+ CD96+ T Cells Are Pathogenic Effector Cells in Giant Cell Arteritis
Shozo Ohtsuki¹, Jose Morales², Yuki Sato², Chenyao Wang², Matthew Koster³, Kenneth Warrington³, Gerald J. Berry⁴, Jorg Goronzy³ and Cornelia M. Weyand⁵, ¹Mayo Clinic College of Medicine and Science, Stanford University School of Medicine, Rochester, MN, ²Mayo Clinic College of Medicine and Science, Rochester, MN, ³Mayo Clinic, Rochester, MN, ⁴Stanford University School of Medicine, Stanford, CA, ⁵Mayo Clinic School of Medicine and Stanford University, Rochester, MN
Background/Purpose: In Giant Cell Arteritis (GCA), granulomatous infiltrates occupy the vessel wall and elicit maladaptive vascular remodeling with intimal hyperplasia. The major cell types of…
Abstract Number: 1382 • ACR Convergence 2023
Efficacy of Tofacitinib Immunotherapy Suppresses Tfh and Tph Cells in Patients with Primary Sjögren’s Syndrome
Qinghong Liu¹ and Jing He², ¹Peking University People's Hospital, Beijing, China, ²Peking University People’s Hospital, Beijing, China
Background/Purpose: Primary Sjögren's syndrome (pSS) is an autoimmune disease characterized by systemic involvement and lacks effective treatment options. The Janus kinase (JAK) pathway plays a…
Abstract Number: 2582 • ACR Convergence 2023
Expansion of Circulating HLA-DR+ Peripheral Helper T Cells and CXCR5−CD38+ Mature Naïve B Cells in ACPA-positive Individuals At-risk for and with Classified RA
Hideto Takada¹, Kristen Demoruelle¹, Kevin Deane¹, Shohei Nakamura², Yasuhiro Katsumata³, Katsunori Ikari², Jane Buckner⁴, William H. Robinson⁵, Jennifer Seifert¹, Marie Feser¹, LauraKay Moss¹, Jill Norri⁶, Masayoshi Harigai³, Elena Hsieh¹, Michael Holer¹ and Yuko Okamoto², ¹University of Colorado Anschutz Medical Campus, Aurora, CO, ²Tokyo Women's Medical University School of Medicine, Tokyo, Japan, ³Tokyo Women's Medical University, Division of Rheumatology, Department of Internal Medicine, Tokyo, Japan, ⁴Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁵Stanford University, Palo Alto, CA, ⁶Colorado School of Public Health, Denver, CO

Background/Purpose: Production of ACPA following T and B cell interactions is a hallmark of ACPA+ RA. Recently identified peripheral helper T (Tph) cells have B…
Abstract Number: 0072 • ACR Convergence 2023
Circulating T-cell Immunosenescence Is High in Patients with Immune-Mediated Inflammatory Diseases (IMIDs) and Is Associated with Interferons
Marie Naingeon¹, Samuel Bitoun², Matthieu roulleaux Dugage¹, Caroline de Oliveira¹, Caroline Berthot¹, Xavier Mariette³, Nathalie Chaput¹ and Gaetane Nocturne⁴, ¹LIO, Department of Medicine, Gustave Roussy Université Paris Saclay, Villejuif, France, ²CHU Bicêtre APHP, Le Kremlin-Bicêtre, France, ³Université Paris-Saclay, Le Kremlin-Bicêtre, France, ⁴APHP, Le Kremlin-Bicêtre, France
Background/Purpose: Immunosenescence is a global remodeling of immune functions that has been first described with aging. It can also occur in pathologies associated with chronic…
Abstract Number: 0092 • ACR Convergence 2023
Multi-omics Immune Profiling of Cytotoxic T Cells from Ankylosing Spondylitis Patients Identified a Subset of Clonally Exapnded CTLs That Evade Immune Exhaustion
Michael Tang¹, Zoya Qaiyum², Melissa Lim¹ and Robert Inman¹, ¹University Health Network, Toronto, ON, Canada, ²Krembil Research Institute, Toronto, ON, Canada
Background/Purpose: Sustained chronic inflammation in the spine and of the sacroiliac joints is a key feature in Ankylosing Spondylitis (AS). A central role of CTL…
Abstract Number: 0803 • ACR Convergence 2023
IL10 Inhibits Toll-like Receptor-9-induced T Cell Receptor-mediated T Cell Activation in Macrophage Activation Syndrome
Matthew Eremita¹, Omar Geier², Joyce Hui-Yuen¹ and Matthew Taylor³, ¹Division of Pediatric Rheumatology, Cohen Children's Medical Center, Lake Success, NY, ²Sepsis Research Laboratory, Feinstein Institutes for Medical Research, Manhasset, NY, ³Division of Pediatric Critical Care, Cohen Children's Medical Center, Manhasset, NY
Background/Purpose: Macrophage activation syndrome (MAS) is a potentially fatal complication of systemic juvenile idiopathic arthritis (sJIA). Gene expression pathway analyses have identified altered Toll-like receptor…
Abstract Number: 1493 • ACR Convergence 2023
Novel BCMA-CD19 Compound CAR-T (cCAR) Targets B Cells and Plasma Cells Achieving Immune Reset and Eliminates All Autoantibodies in Systemic Lupus Erythematosus (SLE) and Lupus Nephritis (LN) Patients Resulting in Long-Term, Medication-Free Remission
Yong Yuan¹, Shanzhi He¹, Wenli Zhang², Hongyu Zhang², Vincent DeStefano³, Masayuki Wada³, Kevin Pinz³, Greg Deener³, Yu Ma⁴, Min Wang¹, Fugui Li¹, Ming Hong¹, Chanjuan Zou¹, Mingxia Wang¹, Ling Ding¹, Yingwen Liang¹, Yupo Ma³ and Weijia Wang¹, ¹Zhongshan People’s Hospital, Zhongshan, China, ²Peking University Shenzhen Hospital, Shenzhen, China, ³iCell Gene Therapeutics Inc., Stony Brook, NY, ⁴iCAR Bio Therapeutics Ltd, Zhongshan, China
Background/Purpose: Evaluate cCAR safety in SLE, LN and autoimmune conditions. Determine whether a single dose eliminates autoantibodies with well tolerated long-term, medication-free remission in open…

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