Abstract Number: 0251 • ACR Convergence 2020
Dynamics of Anti-Nuclear Antibodies in a Longitudinal Study of a Large Systemic Lupus Erythematosus Cohort
Background/Purpose: ANA testing as an approach to diagnosing and classifying SLE, now embedded in the EULAR/ACR Criteria, is more important than ever. Cross-sectional studies indicate…Abstract Number: 0788 • ACR Convergence 2020
Rigorous Plasma Microbiome Analysis Method Enables Disease Association Discovery
Background/Purpose: The mucosal microbiome contributes to disease pathogenesis via local and systemic interaction with the host. The hallmark of this interaction in the physiological condition…Abstract Number: 1086 • ACR Convergence 2020
The Diagnostic Value and Clinical Significance of Myositis-Specific Antibodies in Patients Suspected to Have Autoimmune Myopathies and/or Autoimmune Rheumatic Diseases
Background/Purpose: Myositis-specific antibodies (MSA) are thought to be highly specific in patients with idiopathic inflammatory myopathies.[1] However, in clinical practice these antibodies are frequently found…Abstract Number: 1505 • ACR Convergence 2020
Antibodies Binding Ro/SSA and Muscarinic 3 Receptor in Sjogren’s Syndrome
Background/Purpose: Sjögren’s syndrome is characterized by exocrine gland dysfunction and autoantibody production. Some data suggest autoantibodies binding the muscarinic 3 receptor (M3R) mediate poor function…Abstract Number: 2050 • ACR Convergence 2020
Autoantibodies Targeting Complement Receptors C3aR and C5aR1 Are Decreased in ANCA-associated Vasculitis and Correlate with a Higher Relapse Rate
Background/Purpose: Activation of the alternative and common terminal complement pathways has been shown in ANCA-associated vasculitis (AAV). Circulating titers of the anaphylatoxin C5a are increased…Abstract Number: 0289 • ACR Convergence 2020
Endogenous Interferon-β and Low IL-4R on Transitional B Cells Promotes Lupus Nephritis
Background/Purpose: We previously showed that B-cell endogenous interferon-beta (IFNβ) at the transitional (Tr) stage correlates with development of anti-Smith (anti-Sm) and renal disease as well…Abstract Number: 0790 • ACR Convergence 2020
Vitamin D Polygenetic Risk Score and the Association with RA Autoantibodies Among First-Degree Relatives of RA Subjects
Background/Purpose: Rheumatoid arthritis (RA) is a complex autoimmune disease whose etiology remains largely unknown. Vitamin D has been widely studied due to its association with…Abstract Number: 1098 • ACR Convergence 2020
Anti-cortactin Autoantibodies Are Associated with Key Clinical Features in Adult Myositis but Are Rarely Present in Juvenile Myositis
Background/Purpose: To define the prevalence and clinical phenotype of anti-cortactin autoantibodies in adult and juvenile myositis.Methods: In this longitudinal cohort study, anti-cortactin autoantibody tiers were…Abstract Number: 1507 • ACR Convergence 2020
Longitudinal Analysis of ANA Assay Performance in SLE from the SLICC Inception Cohort
Background/Purpose: Anti-nuclear antibodies (ANA) are important biomarkers for the diagnosis and classification of systemic lupus erythematosus (SLE). However, emerging data from cross-sectional studies suggest variation…Abstract Number: 0291 • ACR Convergence 2020
SLAMF7 and CD38 on NK Cells Represent Potential New Therapeutic Targets for Systemic Lupus Erythematosus
Background/Purpose: Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease characterized by the production of autoantibodies. For this reason, anti-B cell therapy seems to be…Abstract Number: 0846 • ACR Convergence 2020
MHC Class I Epitopes Derived from Autoantibody Variable Regions, Conjugated to Synthetic Oligodeoxynuleotides, Induce Cytotoxic T Cells That Deplete Autoreactive B Cells and Ameliorate Murine Lupus
Background/Purpose: B cell depletion or modulation is emerging as a major treatment modality for autoimmune diseases. However, the current treatments to accomplish this non-specifically target…Abstract Number: 1248 • ACR Convergence 2020
Patients Seropositive for La/SSB Without Ro/SSA Differ from Those Displaying La/SSB with Ro/SSA in a Single Center Sjogren’s Cohort
Background/Purpose: Sjögren’s disease (SS) is characterized by the presence of antibodies against protein-small RNP complexes designated Ro/SSA and La/SSB. Both are included in the 2002…Abstract Number: 1511 • ACR Convergence 2020
Clinical Features and Select Dysregulated Immune Parameters Distinguish Blood Relatives Who Remain Clinically Stable or Progress to Incomplete Lupus or Classified SLE in the Lupus Autoimmunity in Relatives (LAUREL) Follow-up Cohort
Background/Purpose: Identifying populations at risk of SLE is essential to curtail inflammatory damage and identify individuals for prevention trials. Unaffected blood relatives (BRs) of lupus…Abstract Number: 0293 • ACR Convergence 2020
Contraction of the Stool Taxa Clostridia Is Associated with the Development of Clinical Disease Among Anti-Ro+ Mothers of Children with Neonatal Lupus
Background/Purpose: Anti-Ro autoantibody production often precedes the development of systemic lupus erythematosus (SLE) or Sjögren’s syndrome (SS) by years. Anti-Ro+ mothers of children with manifestations…Abstract Number: 0847 • ACR Convergence 2020
Impact of Hydroxychloroquine Treatment on Immunologic Markers in SLE Depends on Ethnicity
Background/Purpose: SLE patients with certain immunological markers (i.e., anti-DNA, low complement) are at higher risk of lupus nephritis and those with antiphospholipid antibodies are at…