Abstract Number: 0759 • ACR Convergence 2020
Presence of Ultrasound Imaging Biomarkers Are Good Predictors of Arthritis Development in a Population at Risk for Rheumatoid Arthritis
Background/Purpose: Ultrasound (US) imaging biomarkers in the context of Anti-Citrullinated Protein Antibody (ACPA) autoimmunity might play an important role in the very early detection of…Abstract Number: 0760 • ACR Convergence 2020
X-rays Bone Erosions Are Uncommon in Anti-CCP Positive Individuals At-risk of Rheumatoid Arthritis with Musculoskeletal Symptoms Without Clinical Synovitis, and Do Not Predict the Development of Inflammatory Arthritis
Background/Purpose: In individuals at-risk of RA, the identification of reliable biomarkers for the future development of clinical arthritis is of critical importance for risk-stratification and…Abstract Number: 0761 • ACR Convergence 2020
Anti-Peptidylarginine Deaminase Antibodies in the Individuals with Arthralgia at Risk of Progression to Rheumatoid Arthritis
Background/Purpose: In order to identify the individuals at risk of imminent progression to rheumatoid arthritis (RA), EULAR has established a definition of clinically suspect arthralgia…Abstract Number: 0762 • ACR Convergence 2020
Anti-Protein-Arginine Deiminase (PAD) 1 IgG Is a Promising Novel Autoantigen in Rheumatoid Arthritis (RA) and Increases Diagnostic Performance in Combination with Anti-PAD4 IgG Using a Composite Biomarker Score
Background/Purpose: Over the past years, novel biomarkers have been identified in the sera of rheumatoid arthritis (RA) patients, including autoantibodies to the protein-arginine deiminase (PAD)…Abstract Number: 0763 • ACR Convergence 2020
Plasmatic Proteome in Individuals with Arthralgia at Risk of Developing Rheumatoid Arthritis
Background/Purpose: The presence of antibodies against citrullinated proteins (ACPA) significantly increases the risk of developing rheumatoid arthritis (RA). EULAR characterised individuals with arthralgia suspicious for…Abstract Number: 0764 • ACR Convergence 2020
Uncovering Novel Biomarkers for Rheumatoid Arthritis from Feature Selection and Machine Learning Approaches on Synovium and Blood Gene Expression Data
Background/Purpose: There is an urgent need to develop objective biomarkers for early diagnosis and monitoring of disease activity in Rheumatoid arthritis (RA). Here we define…Abstract Number: 0765 • ACR Convergence 2020
High Disease Activity at Baseline and Seropositivity Are Associated with Treatment Response at One Year Post Synovial Biopsy in RA Patients
Background/Purpose: Despite recent therapeutic advances, our ability to predict prognosis and therapeutic response in RA remains imprecise. This study examines for biomarkers predictive of outcome…Abstract Number: 0766 • ACR Convergence 2020
ACPA and Cholesterol Titers as Predictors of Good Clinical Response at One Year in an Argentine Cohort
Background/Purpose: Autoantibody positivity, erosions, activity level, and functional capacity were classically defined as poor prognosis. Paradoxically, many of them also predict a good response to…Abstract Number: 0767 • ACR Convergence 2020
Anti-acetylated Protein Antibodies in Rheumatoid Arthritis (RA): Clues for the Starting Point of Autoantibody Responses in RA
Background/Purpose: Rheumatoid arthritis (RA) is characterized by autoantibodies such as rheumatoid factor (RF) and anti-modified protein autoantibodies (AMPAs) like anti-citrullinated protein antibodies (ACPA) and anti-carbamylated…Abstract Number: 0768 • ACR Convergence 2020
Dynamics of Follicular Helper T Cells Subsets in Rheumatoid Arthritis Patients Before and After Treatment
Background/Purpose: Rheumatoid Arthritis (RA) is a chronic inflammatory disease characterized by the production of autoantibodies like rheumatoid factor and anti- citrullinated protein. CD4+ follicular helper T…Abstract Number: 0769 • ACR Convergence 2020
Does the Autoantibody-Response Mature Between Presentation with Arthralgia and Development of Rheumatoid Arthritis? – a Longitudinal Serological Study
Background/Purpose: Auto-antibodies in rheumatoid arthritis (RA) are often present years before disease onset but their mere presence does not seem enough to induce RA. Several…Abstract Number: 0770 • ACR Convergence 2020
Effect of Citrullination on the Processing and Presentation of Rheumatoid Arthritis Autoantigens
Background/Purpose: Citrullinated proteins are hallmark targets of the autoimmune response in rheumatoid arthritis (RA), but the mechanism by which immune tolerance is broken to these self-proteins…Abstract Number: 0771 • ACR Convergence 2020
Factors Associated to Clinical and Radiographic Disease Progression in Patients with Early RA and First-degree Relatives: A 1-year Follow-up
Background/Purpose: In rheumatoid arthritis (RA), autoimmunity towards citrullinated peptides driven the hypothesis, in which periodontal disease (PD) is strongly related to the pathogenesis. Given the…Abstract Number: 0772 • ACR Convergence 2020
Modification of THP-1 Cells with Malondialdehyde-Acetaldehyde Increases Cellular Calcium Load Rendering Cells Susceptible to Citrullination of Self-Proteins
Background/Purpose: The post translational modification of self-proteins with malondialdehyde-acetaldehyde (MAA) has been shown to alter protein function and antibodies to MAA are increased in both…Abstract Number: 0773 • ACR Convergence 2020
The Anti-carbamylated Fibrinogen Response in Rheumatoid Arthritis Targets a Specific Epitope on the γ-chain and Is Associated with a More Active Disease
Background/Purpose: Anti-carbamylated protein autoantibodies (anti-CarP Abs) of IgG and/or IgA isotype have potential diagnostic and prognostic value Carbamylated Fetal Calf Serum (FCS) is the substrate…
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