Abstract Number: 037 • 2023 Pediatric Rheumatology Symposium
Transcriptional Analysis of CD14+ Monocytes During Macrophage Activation Syndrome Highlights Role for Interferons and RNA Sensing in Monocytes
Background/Purpose: Macrophage activation syndrome (MAS), a form of secondary hemophagocytic lymphohistiocytosis (HLH), is a potentially fatal complication of rheumatic diseases. MAS is a dysfunctional hyperinflammatory…Abstract Number: 0557 • ACR Convergence 2022
VEXAS Syndrome Is Characterized by Blood and Tissues Inflammasome Pathway Activation and Monocyte Dysregulation
Background/Purpose: Acquired mutations in the UBA1 gene, occurring in myeloid cells and resulting in expression of a catalytically impaired isoform of the enzyme E1, were…Abstract Number: 0568 • ACR Convergence 2022
The Absence of Blk Leads to Increased Inflammation in a Murine Model of Kawasaki Disease
Background/Purpose: Kawasaki Disease (KD) is the leading cause of acquired heart disease in children in developed countries characterized by inflammation of the coronary arteries leading…Abstract Number: 0599 • ACR Convergence 2022
Expansion of HLA-DR+CD45RAhi Non-lymphoid Cells in Patients with Rheumatoid Arthritis
Background/Purpose: In RA, aberrant lymphocytes can damage synovial joints and other organs. Antigen-presenting cells (APC) can activate lymphocytes and are considered critical to initiate immune…Abstract Number: 0604 • ACR Convergence 2022
Altered Metabolic State in Myeloid Precursors and Mature Cells Within Rheumatoid Arthritis
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease characterised by synovial inflammation and joint destruction. Prior research has revealed perturbation in the myeloid compartment of…Abstract Number: 0652 • ACR Convergence 2022
Serum from Patients with SLE and Anti-MDA5 Antibody-Positive Dermatomyositis Induce Shared Monocyte Cytokine Signature Through Type 1 Interferon Pathway
Background/Purpose: Although type 1 interferon (IFN) plays a pivotal role in the pathogenesis of systemic lupus erythematosus (SLE) and polymyositis/dermatomyositis (PM/DM) [1] as typically evidenced…Abstract Number: 0654 • ACR Convergence 2022
Lymphatic Dysfunction and Immune Activation in Lupus
Background/Purpose: Systemic lupus erythematosus is a prototypic autoimmune disease in which patients frequently have photosensitivity. Exposure to ultraviolet radiation (UVR) causes the eruption of cutaneous…Abstract Number: 0663 • ACR Convergence 2022
Anti-Erythrocyte Antibodies in Childhood Onset Systemic Lupus Erythematosus
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a disease characterized by the presence of auto-antibodies, immune complex deposition, and a robust type 1 interferon signature. It…Abstract Number: 1167 • ACR Convergence 2022
Towards an Autologous 3D Skin-like Tissue Harboring Patient-Derived Fibroblasts, Keratinocytes, T-cells and Macrophages
Background/Purpose: Scleroderma (Systemic Sclerosis; SSc) is an autoimmune disease of unknown etiology that is characterized by vascular dysfunction, fibrosis, and inflammation. A lack of human…Abstract Number: 1169 • ACR Convergence 2022
Downregulated Fli1 in Systemic Sclerosis Myeloid Cells Contributes to Enhanced Transendothelial Migration
Background/Purpose: The mononuclear phagocytic system in Systemic Sclerosis (SSc) is central to fibrogenesis and may contribute to fibrosis via enhanced monocyte migration into injured tissues…Abstract Number: 1565 • ACR Convergence 2022
Dissection of Ocular and Peripheral Blood Immune Phenotypes Suggests Preferential Transmigration of CD16+ Monocytes to Effector Sites in Behçet’s Disease
Background/Purpose: Cellular immunity of Behçet's Disease (BD) remains poorly understood. Previous work has provided clues pointing to most innate and adaptive immune cell types in…Abstract Number: 1699 • ACR Convergence 2022
Arthritis-associated Synovial CD64-Ly6c- myeloid Cells Comprise 2 Subpopulations
Background/Purpose: Monocytes are critical for the pathogenesis of rheumatoid arthritis (RA). However, depletion of circulating monocytes – either classical or non-classical monocytes – is not…Abstract Number: 1710 • ACR Convergence 2022
CCL2 Drives Interferon-enhanced Monocytosis in UV-mediated Skin Injury in Murine Lupus
Background/Purpose: Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease characterized by overproduction of type I interferons (IFNs) and sensitivity to ultraviolet (UV) light. Though…Abstract Number: 2003 • ACR Convergence 2022
Anti-rheumatic Treatment Modulates Expression of the Glycolytic Enzyme PFKFB3 in CD14+ Monocytes of Patients with Rheumatoid Arthritis, Which Contributes to Dissimilarities of the IFN Signature
Background/Purpose: Combination of IFN-stimulated genes known as IFN signature, helps to predict disease activity and treatment response in several autoimmune diseases, including rheumatoid arthritis (RA).…Abstract Number: 0004 • ACR Convergence 2022
mTORC1 Drives the Spectrum of Pathology in Systemic JIA and Macrophage Activation Syndrome
Background/Purpose: Systemic juvenile idiopathic arthritis (sJIA) is a severe inflammatory syndrome characterized by fever, skin rash and arthritis. A subset of patients with sJIA develop…
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