Abstract Number: 0628 • ACR Convergence 2022
A Positive-feedback Model for the Contribution of Virus-Specific T Cells to the Development of Rheumatoid Arthritis
Background/Purpose: Rheumatoid Arthritis (RA) is associated with specific HLA-DR genotypes with an emphasis on the role of CD4+ effector-memory T cells (Tem) in disease pathogenesis.…Abstract Number: 1478 • ACR Convergence 2022
Urine ALCAM Is a Strong Predictor of Lupus Nephritis
Background/Purpose: T cells play a critical role in the pathogenicity of SLE and lupus nephritis (LN). Hence, identifying T cell co-stimulatory pathways and mediators that…Abstract Number: 1739 • ACR Convergence 2022
Single-Cell Characterization of the TCR Repertoire Across Tissue and Blood in Rheumatoid Arthritis
Background/Purpose: In rheumatoid arthritis (RA), T cells represent a large proportion of the immune population present in inflamed joint synovium, and subsets of both CD4+…Abstract Number: 2184 • ACR Convergence 2022
CaMK4 Controls the Humoral Response via the T Follicular Helper Compartment and Regulates Autoimmunity
Background/Purpose: Systemic lupus erythematosus (SLE) is characterized by a dysregulated T cell compartment and production of autoantibodies leading to organ damage. We previously identified that…Abstract Number: 0642 • ACR Convergence 2022
SLAMF6-SAP Signaling Unit Is Increased in SLE T Follicular Helper Cells
Background/Purpose: SLE is a multiorgan disease in which immune cells lack self-tolerance resulting in autoimmunity. SLE T cells infiltrate organs, provide help to autoreactive B…Abstract Number: 1570 • ACR Convergence 2022
Memory CD4+T Cell Signature Is Associated with Unfavorable Prognosis in IgG4-related Disease: Risk Stratification by Machine-learning
Background/Purpose: IgG4-related disease (IgG4-RD) is a chronic immune-mediated disease with significant heterogeneity. A better understanding of the variance in the immune signature of IgG4-RD will…Abstract Number: 1740 • ACR Convergence 2022
Chronic Inflammation in Patients with Rheumatoid Arthritis or Spondyloarthritis Alters Regulatory T Cells Identity
Background/Purpose: Rheumatoid arthritis (RA) and spondyloarthritis (SpA) are inflammatory autoimmune diseases associated with impaired regulatory T cell (Tregs) function. Tregs identity varies according to their…Abstract Number: 2186 • ACR Convergence 2022
Cellular and Humoral Responses Following SARS-CoV-2 mRNA Vaccination in Patients on PD-1 Immunotherapy with irAEs
Background/Purpose: Patients with cancer exhibit increased mortality from SARS-CoV-2 infection compared to the general population. SARS-CoV-2 mRNA vaccination in healthy individuals generates effective and long-lasting…Abstract Number: 0646 • ACR Convergence 2022
Modulation of Type I IFN Production and Regulatory T Cells by the PKGI/ROCK Signaling Pathway
Background/Purpose: IFNα is a pathogenic factor in SLE. The PRKG1 rs7897633 variant has been previously identified as the top hit in European ancestry patients with…Abstract Number: 1625 • ACR Convergence 2022
Single Cell and Spatial Transcriptomics Identifies Pathogenic Drivers of Sjogren’s Disease in Humans
Background/Purpose: Sjogren's Disease(SjD) is a systemic autoimmune disease characterized by exocrine dysfunction. The pathogenesis is incompletely understood, but involves gene-environment interactions leading to infiltration of…Abstract Number: 1741 • ACR Convergence 2022
Mutated Nod2 Controls T Cell Function and Promotes Uveitis in a Blau Syndrome Mouse Model
Background/Purpose: Mutations in the microbial signaling molecule NOD2 cause granulomatous uveitis, arthritis, and dermatitis in Blau Syndrome. We previously showed a novel role for Nod2…Abstract Number: 0044 • ACR Convergence 2022
Follistatin-like Protein 1 Alters T Cell Receptor Signaling Dynamics in Vitro, While Expression in Vivo Correlates with Disease and Deficiency Increases Acute Inflammation in a Mouse Model of Kawasaki Disease
Background/Purpose: Kawasaki disease (KD) is an acute, febrile illness of childhood, associated with cardiac inflammation and vasculitis of coronary arteries and sometimes other medium sized…Abstract Number: 0649 • ACR Convergence 2022
Phosphofructokinase P Fine-Tunes T Regulatory Cell Metabolism, Function and Stability in Systemic Autoimmunity
Background/Purpose: Systemic lupus erythematosus (SLE) is characterized by a defective T regulatory (Treg) cell compartment which participate in immune dysregulation. Although the underlying mechanism are…Abstract Number: 1677 • ACR Convergence 2022
Chimeric Autoantigen-T Cell Receptor (CATCR)-T Cell Therapies to Selectively Target Autoreactive B Cells
Background/Purpose: Chimeric antigen receptor (CAR)-T cell therapies have revolutionized the treatment of cancer and can be curative. CD19-targeted CAR-T cells hold promise for the treatment…Abstract Number: 1742 • ACR Convergence 2022
Shared Epitope Allomorphs Directly Influence Antigen-specific T-cell Responses in RA
Background/Purpose: The products of rheumatoid arthritis (RA)-associated MHC class II risk alleles HLA-DRB1*04:01 and *04:04 (DR4) differ only by two amino acids in the peptide…
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