Abstract Number: 0947 • ACR Convergence 2021
Cytokine Competent Gut-joint Migratory T Cells Contribute to Inflammation in the Joint
Background/Purpose: Although studies have identified the presence of gut-associated cells in the enthesis of joints affected by spondyloarthritis, a direct link through cellular transit between…Abstract Number: 0966 • ACR Convergence 2021
Integrated Single Cell RNA-Sequencing Analysis of Tissue-Localized T Cells in Cutaneous Lupus and Lupus Nephritis
Background/Purpose: Cutaneous lupus erythematosus (CLE) is commonly present in patients with systemic lupus erythematosus (SLE), but can also exist as an isolated manifestation without further…Abstract Number: 0967 • ACR Convergence 2021
Antigen-specific and Bystander Autoreactive T Cell Control in Peripheral Blood of ACPA+ Rheumatoid Arthritis Patients Administered Antigen-specific Tolerising Immunotherapy
Background/Purpose: The control of autoreactive T cells in an antigen-specific manner in autoimmune diseases is a major clinical research goal. Various regulatory immune signatures have…Abstract Number: 0968 • ACR Convergence 2021
Granzyme K+ CD8 T Cells Form the Core Population of Inflamed Human Tissue-associated CD8 T Cells
Background/Purpose: T cell-derived pro-inflammatory cytokines are a major driver of rheumatoid arthritis (RA) pathogenesis. While CD4 T cells have traditionally been assumed to be the…Abstract Number: 1009 • ACR Convergence 2021
Expanded B Cell-Helper T Cells in ANA+ Oligoarticular Juvenile Idiopathic Arthritis
Background/Purpose: Oligoarticular juvenile idiopathic arthritis (oligo JIA) is defined by limited joint involvement (< 5 joints) in the first 6 months of disease. A subgroup…Abstract Number: 1012 • ACR Convergence 2021
Altered T Cell Responses, and Synergistic Regulation of Synovial Fibroblasts Function in Children with Down’s Syndrome-Associated Arthritis
Background/Purpose: Juvenile idiopathic arthritis (JIA) was thought to be the most common inflammatory arthritis in children. However an aggressive, erosive arthritis of little-known immunologic mechanism…Abstract Number: 1438 • ACR Convergence 2021
Development of a Computationally Designed, Hyperstable Dual Inhibitor of the IL-2 and IL-15 Receptors: A Novel Therapeutic Candidate for Inflammatory Conditions
Background/Purpose: T cell mediated pathology is central to many forms of autoimmunity, and cytokines perform critical inflammatory functions during this process. IL-2 and IL-15 are…Abstract Number: 1499 • ACR Convergence 2021
Imbalance Between T Follicular Cells and T Regulatory Cells Involved in High Fat-Diet Associated Lupus Development in MRL/lpr Mice
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease characterized by persistent inflammation and production of autoantibodies, which deposit within numerous tissues leading to…Abstract Number: 1507 • ACR Convergence 2021
Role of CD4+ T Cells in the Pathogenesis of RA: Immunization with Citrullinated T Cell Epitopes Is Sufficient to Induce Immunological and Clinical Manifestations of Arthritis in DR4-Transgenic Mice
Background/Purpose: Although the etiology of rheumatoid arthritis (RA) remains unclear, existing research suggests a complex interplay of both genetic and environmental factors. Citrullinated proteins/peptides, and…Abstract Number: 0426 • ACR Convergence 2020
T-Cell Receptor (TCR) Sequencing Reveals Decreased Diversity and Clonotypic Expansion of T-cells in Relapsing Polychondritis (RP)
Background/Purpose: Relapsing polychondritis (RP) is a rare, systemic inflammatory disease characterized by recurrent inflammation of cartilaginous structures, including the nose/ears, joints, and trachea. The etiology of…Abstract Number: 0947 • ACR Convergence 2020
STING Gain-of-Function in Radio-resistant Cells Supports a Lymphocyte Dependent Auto-inflammatory Lung Disease
Background/Purpose: cGAS-STING is a cytosolic dsDNA sensing pathway whose regulation is vital to immune homeostasis. Pediatric patients with constitutively active STING mutations develop an autoinflammatory…Abstract Number: 1440 • ACR Convergence 2020
The Myeloperoxidase (MPO) Anti-Neutrophilic Cytoplasmic Antibody (ANCA) Binding Epitope, MPO447-459 Induces CD4 T-cell Proliferation in Patients with MPO-ANCA-associated Vasculitis
Background/Purpose: In Myeloperoxidase (MPO) Anti Neutrophilic Cytoplasmic Antibody (ANCA)-Associated Vasculitis (MPO-AAV), murine and human studies suggest that the MPO435-465 region, which includes ANCA-binding MPO447-459, the…Abstract Number: 2047 • ACR Convergence 2020
Synovial CD8 T Cells in Rheumatoid Arthritis Exhibit High Antigen-independent Cytokine Production and Low Cytotoxic Potential
Background/Purpose: T cell-derived pro-inflammatory cytokines are major drivers of RA pathogenesis, and these cytokines have traditionally been attributed to CD4 T cells. However, single-cell RNA-sequencing…Abstract Number: 0449 • ACR Convergence 2020
Cytotoxic T Cells with a Chronic Antigen Exposure Phenotype Drive Immune Checkpoint Inhibitor Sicca
Background/Purpose: Immune checkpoint inhibitors (ICI) have advanced the field of cancer therapeutics. By blocking the negative co-stimulation of T cells, ICI augment the anti-tumor immune…Abstract Number: 0948 • ACR Convergence 2020
Mass Cytometry Reveals Activation Heterogeneity of Circulating Neutrophils in Systemic Lupus Erythematosus
Background/Purpose: Neutrophils are important effector cells in systemic immune-mediated diseases. Neutrophil phenotypes vary depending on their age, maturity, activation state, and local environment; however, differences…
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