Abstract Number: 2168 • ACR Convergence 2024
Two Year Data on Quality of Life, Pain and Mobility Scores After Rituximab Treatment in the Preclinical Phase of Rheumatoid Arthritis
Background/Purpose: Over the past 10 years, several trials have investigated prevention of rheumatoid arthritis (RA) by disease modifying antirheumatic drug (DMARD) therapies. Early treatment of…Abstract Number: 1728 • ACR Convergence 2023
A Novel Animal Model for Investigating the Effect of HLA-DRB1 on Atherosclerosis
Background/Purpose: HLA-DRB1 alleles are associated with various autoimmune and inflammatory conditions, including rheumatoid arthritis, polymyalgia rheumatica, giant cell arteritis, systemic lupus erythematosus, diabetes and atherosclerotic…Abstract Number: 1737 • ACR Convergence 2023
ACPA, Anti-CarP and AAPA Can Be Detected in Saliva, but Not in Feces of Seropositive Rheumatoid Arthritis Patients – Support for Mucosal Involvement in Specific Locations in RA
Background/Purpose: Rheumatoid arthritis (RA) patients harbor antibodies against several post-translational modifications (AMPA), for example anti-citrullinated protein antibodies (ACPA), anti-carbamylated antibodies (anti-CarP) and anti-acetylated protein antibodies…Abstract Number: 1742 • ACR Convergence 2023
Sputum Citrullinated Proteins and Sputum Anti-Cit-S100A8/A9 IgG Antibodies Are Increased in Serum Anti-CCP-IgG Positive Individuals Who Developed RA
Background/Purpose: The presence of anti-CCP-IgG in the blood identifies individuals who are "at-risk" of developing RA. Our group has reported that in a cohort of…Abstract Number: 1748 • ACR Convergence 2023
Macrophage Extracellular Traps Require Peptidylarginine Deiminase 2 and 4 and Are a Source of Citrullinated Antigens Bound by Rheumatoid Arthritis Autoantibodies
Background/Purpose: Anti-citrullinated protein antibodies (ACPAs) are a hallmark of rheumatoid arthritis, but the sources of citrullinated antigens as well as which peptidylarginine deiminases (PADs) are…Abstract Number: 1751 • ACR Convergence 2023
Profiling of Anti-PAD IgG and IgA in Patients from the Head-to-head Adalimumab vs Abatacept Rheumatoid Arthritis AMPLE Trial and Matched Healthy Controls
Background/Purpose: A hallmark of rheumatoid arthritis (RA) is the presence of anti-citrullinated protein antibodies (ACPA) targeting neoantigens which are generated by a family of enzymes…Abstract Number: 1758 • ACR Convergence 2023
Identification of Circulating Autoantibodies Associated with ACPA Status in Early Rheumatoid Arthritis
Background/Purpose: Rheumatoid arthritis (RA) is associated with the presence of autoantibodies being the anti-citrullinated protein antibodies (ACPAs) the hallmark as they are present in almost…Abstract Number: 2124 • ACR Convergence 2023
Expansion of Atypical B Cells Accompanies Rheumatoid Arthritis-like Immune Dysregulation in ACPA+ At-risk Individuals
Background/Purpose: Seropositive RA is preceded by an at-risk stage characterized by elevated circulating autoantibodies (AAb), including ACPA, in otherwise healthy individuals without clinically-apparent inflammatory arthritis.…Abstract Number: 2144 • ACR Convergence 2023
Pharmacodynamic Effects of Nipocalimab in Patients with Moderate to Severe Active Rheumatoid Arthritis (RA): Results from the Multicenter, Randomized, Double-blinded, Placebo-controlled Phase 2A IRIS-RA Study
Background/Purpose: Nipocalimab is a fully human, immunoglobulin G (IgG) 1 monoclonal antibody that blocks the neonatal crystallizable fragment receptor (FcRn), thereby lowering IgG levels. RA…Abstract Number: 2193 • ACR Convergence 2023
Anti-citrullinated Protein Antibodies in Sjögren’s Syndrome Define a Subset of Patients with Lower B Cell Activation Markers and Higher Risk of Lung Involvement
Background/Purpose: Extraglandular manifestations may occur in up to 40-50% of patients with SS, including inflammatory arthralgia and chronic polyarthritis (1-3). ACPA are prototypical markers of…Abstract Number: 2433 • ACR Convergence 2023
Longitudinal Multi-Omics Single Cell Analysis Reveals Abatacept Treatment Shifts Peripheral Lymphocyte Subpopulations in Seropositive RA with Reduction of Mature B Cells and Retention of Transitional and Naive B Cells
Background/Purpose: Biologic agents of diverse molecular mechanisms of action are approved for RA, but we do not have a full understanding of the implications of…Abstract Number: 0389 • ACR Convergence 2023
The Role of anti-CCP3 Antibodies in anti-CCP2 Antibody Negative Patients with Musculoskeletal Symptoms
Background/Purpose: To investigate, in primary care, whether testing anti-CCP3 antibodies in anti-CCP2 negative individuals with musculoskeletal (MSK) symptoms, improved the prediction of inflammatory arthritis (IA)/rheumatoid…Abstract Number: 2434 • ACR Convergence 2023
Acetylated Bacterial Proteins as Potent Antigens Inducing an Anti-modified Protein Antibody Response
Background/Purpose: Gut-residing bacteria, such as E.coli, can acetylate their proteome under conditions of amine starvation. It is postulated that the (gut) microbiome is involved in…Abstract Number: 0392 • ACR Convergence 2023
Novel Diagnostic Markers for Rheumatoid Arthritis Including Anti-CarP (Carbamylated Protein), Anti-Sa (Citrullinated Vimentin) and Anti-CEP1 (Citrullinated Enolase Peptide1) Are Frequently Positive in Diagnostic Profiles
Background/Purpose: Despite the diagnostic contribution of Anti-CCP3.1 (cyclic citrillunated peptide) antibody and RF (rheumatoid factor) as classified by the 2010 ACR/EULAR RA criteria, approximately one-third…Abstract Number: 2450 • ACR Convergence 2023
Gene by Respiratory Disease Interactions Associated with Developing Rheumatoid Arthritis
Background/Purpose: Cigarette smoking, textile dust, and occupational inhalants all strongly interact with the Human Leukocyte Antigen (HLA) shared epitope for risk of seropositive RA. Recently,…
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