Abstracts tagged "Anti-citrullinated Protein Autoantibodies (ACPAs)"

Abstract Number: 0763 • ACR Convergence 2020
Plasmatic Proteome in Individuals with Arthralgia at Risk of Developing Rheumatoid Arthritis
Klára Prajzlerová¹, Nora Petrovská¹, Monika Gregová¹, Jiří Baloun², Petra Hánová², Karel Pavelka¹, Jiří Vencovský¹, Ladislav Šenolt¹ and Mária Filková¹, ¹Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ²Institute of Rheumatology, Prague, Czech Republic
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: 0768 • ACR Convergence 2020
Dynamics of Follicular Helper T Cells Subsets in Rheumatoid Arthritis Patients Before and After Treatment
Paola Virginia Ferrero¹, Luisina Onofrio¹, Cristina del Valle Acosta¹, Estefania Raquel Zacca¹, Nicolas Eric Ponce², Eduardo Mussano¹, Ignacio Isaac Cadile¹, Laura Onetti¹, Marina Werner¹, Alicia Beatriz Costantino¹, Eva Virginia Acosta Rodriguez³ and Adriana Gruppi², ¹HOSPITAL NACIONAL DE CLINICAS, FACULTAD DE MEDICINA, UNIVERSIDAD NACIONAL DE CORDOBA, CORDOBA, Cordoba, Argentina, ²FACULTAD DE CIENCIAS QUIMICAS, UNIVERSIDAD NACIONAL DE CORDOBA. CENTRO DE INVESTIGACIONES EN BIOQUIMICA CLINICA E INMUNOLOGIA, CORDOBA, Cordoba, Argentina, ³FACULTAD DE CIENCIAS QUIMICAS, UNIVERSIDAD NACIONAL DE CORDOBA. CENTRO DE INVESTIGACIONES EN BIOQUIMICA CLINICA E INMUNOLOGIA, CORDOBA, Argentina
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
Fenne Wouters¹, Ellis Niemantsverdriet¹, Nazike Salioska¹, Annemarie Dorjée¹, René Toes¹ and Annette van der Helm - van Mil², ¹Leiden University Medical Center, Leiden, Netherlands, ²Leiden University Medical Center, Erasmus Medical Center, Leiden, Netherlands
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: 0772 • ACR Convergence 2020
Modification of THP-1 Cells with Malondialdehyde-Acetaldehyde Increases Cellular Calcium Load Rendering Cells Susceptible to Citrullination of Self-Proteins
Nozima Aripova¹, Michael Duryee¹, Xiarepati Tieliwaerdi¹, Xiaoting Jiang¹, Lynell Klassen², James O'Dell¹, Bryant England¹, Ted Mikuls¹ and Geoffrey Thiele¹, ¹University of Nebraska Medical Center, Omaha, NE, ²Univerisity of Nebraska Medical Center, Omaha, NE
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: 0801 • ACR Convergence 2020
The Comparative Effectiveness of Abatacept versus TNF Inhibitors in Patients Who Are ACPA Positive and Have the Shared Epitope: Results from a US National Observational Study
Leslie Harrold¹, Keith Wittstock², Sheila Kelly², Xue Han², Joe Zhuo², Amy Schrader¹, Nicole Middaugh¹, Page Moore¹ and Vadim Khaychuk², ¹Corrona, LLC, Waltham, MA, ²Bristol-Myers Squibb Company, Princeton, NJ
Background/Purpose: The HLA-DRB1 shared epitope (SE) is associated with joint destruction in ACPA+ patients (pts) with RA.1 In the Early AMPLE trial, among ACPA+ pts…
Abstract Number: 0804 • ACR Convergence 2020
Factors That Influence Biological Survival in Rheumatoid Arthritis: Results of a Real-world Cohort from the Netherlands
Elise van Mulligen¹, Saad Ahmed¹, Angelique Weel², Mieke Hazes³, Annette van der Helm - van Mil⁴ and Pascal de Jong¹, ¹Erasmus MC, Rotterdam, Netherlands, ²Erasmus School of Health Policy & Management, Maasstad hospital, Erasmus MC, Rotterdam, Netherlands, ³Erasmus Medical Center, Rotterdam, Netherlands, ⁴Leiden University Medical Center, Erasmus Medical Center, Leiden, Netherlands
Background/Purpose: Data on biological survival, stratified for discontinuation reasons, and predictors that influence survival time have not been explored extensively. Therefore, we aim to explore…
Abstract Number: 0824 • ACR Convergence 2020
The Comparative Effectiveness of Abatacept versus Tofacitinib After 6 Months of Treatment in Patients with RA Who Were Anti-citrullinated Protein Antibody Positive at Baseline: Results from a US National Observational Study
Leslie Harrold¹, Keith Wittstock², Sheila Kelly², Xue Han², Ying Shan¹, Page Moore¹, Lin Guo¹ and Vadim Khaychuk², ¹Corrona, LLC, Waltham, MA, ²Bristol-Myers Squibb Company, Princeton, NJ
Background/Purpose: Previous data from the Corrona RA registry, conducted in a US clinical practice setting, demonstrated that patients (pts) with RA who were ACPA+ had…