Abstract Number: 0040 • ACR Convergence 2023
Non-canonical NF-κB Signalling Is Required for Extrathymic AIRE Expression and Immunoregulatory Molecules in Cells of the Dendritic Lineage
Background/Purpose: The transcription factor Autoimmune Regulator (AIRE) is crucial for the establishment of central tolerance in the thymus. Recently, peripheral CD45+ extrathymic AIRE-expressing cells (eTACs)…Abstract Number: 0940 • ACR Convergence 2023
A Novel Therapeutic Opportunity in Systemic Sclerosis: The Fibrolytic Activities of a Specialized Macrophage Secretome
Background/Purpose: Systemic sclerosis (SSc) a complex and rare immune-mediated connective tissue disorder characterized by microvascular damage, inflammatory cell infiltration, and excessive deposition of extracellular matrix…Abstract Number: 0041 • ACR Convergence 2023
Interactions Between Synovial Fibroblasts and Macrophages: Implications for Tissue Remodeling in Chronic Inflammatory Diseases and Macrophage Differentiation in Response to the Immune Microenvironment
Background/Purpose: Activated macrophages (Mph) can be subdivided in at least 2 major subgroups according to their polarization into classical pro-(M1-Mph) or anti-inflammatory (M2-Mph) subtypes. Together…Abstract Number: 0947 • ACR Convergence 2023
Fcγ Receptors Define Pro-Phagocytic Macrophages and Trigger Pro-Inflammatory Responses in Patients with Systemic Sclerosis
Background/Purpose: Fcy receptors (FcγR) are opsonic phagocytic receptors, requiring tight regulations to prevent uncontrolled activation of pro-inflammatory phagocytosis. SSc macrophages display an alternatively-activated profibrotic phenotype.…Abstract Number: 0049 • ACR Convergence 2023
Soluble Uric Acid Is an Endogenous Inhibitor of CD38
Background/Purpose: CD38 is the main NAD+-degrading enzyme that plays a key role in innate immunity, aging, cancer, and metabolic disorders. Pharmacological inhibition of CD38 has…Abstract Number: 1329 • ACR Convergence 2023
R851, a Potent Second Generation IRAK1 and IRAK4 Inhibitor Suppresses IL-6 in Vitro and in Vivo for the Treatment of Rheumatoid Arthritis
Background/Purpose: The Toll-Like Receptor family (except TLR3) signal through IRAK4 and IRAK1 to produce an array of cytokines (including IL-6, IL-23 and TNFα in response…Abstract Number: 0050 • ACR Convergence 2023
Anti-Citrullinated Histone Antibody CIT-013, a Dual Action Therapeutic for Neutrophil Extracellular Trap Associated Autoimmune Disease
Background/Purpose: Neutrophil extracellular traps (NETs) contribute to the pathophysiology of multiple inflammatory and autoimmune diseases (Chirivi et al., 2021; DOI: 10.1038/s41423-020-0381-3). Targeting the NETosis pathway…Abstract Number: 1498 • ACR Convergence 2023
First-in-Human Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics Study of DS-7011a, an Anti-TLR7 Antagonistic Monoclonal Antibody for the Treatment of Systemic Lupus Erythematosus
Background/Purpose: Toll-like receptor (TLR)7 is a pattern recognition receptor, whose ligands include nucleic acids and whose activation is part of the pathogenesis of systemic lupus…Abstract Number: 0051 • ACR Convergence 2023
CD14+CD64+ Classical Monocytes Are the Main Producers of IL-23 at the Enthesis
Background/Purpose: IL-23 is a key cytokine involved in diseases such as psoriasis, psoriatic arthritis and spondyloarthropathies (SpA) and inflammatory bowel disease.IL-23 is produced by activated…Abstract Number: 1587 • ACR Convergence 2023
Mitochondrial Z-DNA and ZBP1 Drive Autoimmune Photosensitivity
Background/Purpose: Autoimmune photosensitivity is observed in type I Interferon (IFN) mediated diseases such as systemic and cutaneous lupus erythematosus (SLE/CLE) and dermatomyositis. Type I IFN…Abstract Number: 0056 • ACR Convergence 2023
The Activation of cGAS-STING Pathway in Systemic Lupus Erythematosus
Background/Purpose: The majority of patients with SLE show a striking Type I Interferon (IFN-I) signature in their peripheral blood. Although this signature can be generated…Abstract Number: 1662 • ACR Convergence 2023
Chronic Excess IL-18 Induces NK Deficiency, but Drives Hyperinflammation via CD8 T-cell Cytokine Overproduction and Selective Immunodeficiency
Background/Purpose: Systemic Juvenile Idiopathic Arthritis (SJIA) and Macrophage Activation Syndrome (MAS) are associated with highly elevated peripheral blood levels of the inflammasome-activated cytokine IL-18 and…Abstract Number: 0259 • ACR Convergence 2023
Preliminary Experience with a Novel “Fix” for Deep Epitope and Transcriptional Phenotyping of Fragile Cells from Autoinflammatory Flares
Background/Purpose: Autoinflammatory diseases (AID) are characterized by inflammation and immunopathology due to primary defects in the innate immune response. Neutrophils (PMN) feature prominently in the…Abstract Number: 1676 • ACR Convergence 2023
Tofacitinib Accelerates in Vitro Clot Formation and Delays Clot Lysis in Rheumatoid Arthritis Blood by Enhancement of Macrophage TLR4 Mediated Cytokine Responses- a New Angle on Thrombosis with JAKi in Rheumatology
Background/Purpose: Rheumatoid Arthritis (RA) patients treated with Janus Kinase inhibitors (JAKi) have reportedly higher venous thromboembolism (VTE) risk and atherosclerotic-related complications including myocardial infarction (1).Although…Abstract Number: 0757 • ACR Convergence 2023
Identification of 23 Novel COPA Rare Exonic Non-Synonymous Variants and Their Associated Autoimmune and Inflammatory Clinical Phenotypes Among 53,364 Individuals
Background/Purpose: COPA syndrome is a rare, severe monogenic autoinflammatory/autoimmune disorder with variable penetrance, most commonly affecting the lungs and joints. It is caused by dominant…
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