Abstract Number: 2442 • ACR Convergence 2023
Neutrophils Induce Contact-Dependent Expansion of Arthritogenic Th17 Cells and Are Necessary for Disease in Experimental Ankylosing Spondylitis
Background/Purpose: Ankylosing spondylitis (AS) patients have irregular neutrophil responses, as indicated clinically by neutrophilia and increased neutrophil to lymphocyte ratios that positively associate with disease…Abstract Number: 0911 • ACR Convergence 2023
Spatial Transcriptomics Reveals Normal-density and Low-density Neutrophils Are More Prevalent Than Macrophages in Lupus Nephritis Glomeruli, and Urine DNA Methylation Analyses Capture Both Myeloid Populations
Background/Purpose: Despite compelling evidence that normal-density (NDN) and low-density neutrophils (LDN) are activated in the blood of lupus patients, their role in lupus nephritis (LN)…Abstract Number: 2600 • ACR Convergence 2023
Clonal Hematopoiesis Is Associated with Giant Cell Arteritis
Background/Purpose: Giant cell arteritis (GCA) is an age-related vasculitis of large and medium vessels. Prior population studies have identified an association between GCA and hematologic…Abstract Number: 0920 • ACR Convergence 2023
Proinflammatory Neutrophils and NETs Mediate Skin and Kidney Inflammation During Lupus Flare in Asymptomatic Lupus-prone Mice Triggered by UVB
Background/Purpose: Ultraviolet B (UVB) exposure triggers lupus flare by worsening both skin lesions and systemic symptoms, i.e. lupus nephritis. We recently reported that UVB exposure…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: 127 • 2023 Pediatric Rheumatology Symposium
What’s in a Name? A20 Protein Expression in an in Vitro Model of A20 Haploinsufficiency
Background/Purpose: Tumor necrosis factor alpha (TNF-alpha) induced protein 3 gene, or TNFAIP3, encodes the A20 protein, an important regulator of the NF-κB pathway. Since its…Abstract Number: 0149 • ACR Convergence 2022
Autoinflammatory Diseases Associated with NOD2 and Other Concurrent Genetic Mutations
Background/Purpose: Systemic autoinflammatoy diseases (SAIDs) are primarily caused by abnormal innate immune response. NOD-like receptors (NLRs) are intracellular sensors to the immune process, including NOD2,…Abstract Number: 1697 • ACR Convergence 2022
Measurements of Specific Activation Through the Lectin -or Classical Pathway of Complement in Patients with SLE
Background/Purpose: In systemic lupus erythematosus (SLE), the complement system is activated and commonly thought to occur through the classical pathway (CP) [1]. However, our previous…
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