Abstract Number: 1620 • 2015 ACR/ARHP Annual Meeting
DNA Methylation Profiling of Rheumatoid Arthritis Peripheral Blood Identifies Hypermethylation of TRIM69 Promoter Region in CD4+ T Cells Associated with Disease Activity
Background/Purpose: Epigenetic modifications have been previously associated with rheumatoid arthritis (RA [MIM 180300]). This study aimed to determine whether differential DNA methylation in peripheral blood…Abstract Number: 1623 • 2015 ACR/ARHP Annual Meeting
Genome-Wide Association Study of DNA Methylation in Th1 and Th17 Cells in Rheumatoid Arthritis
Background/Purpose: Rheumatoid arthritis (RA) is a common autoimmune disease characterized by systemic inflammation. Although the understanding of the pathogenesis is incomplete, there is substantial evidence…Abstract Number: 2017 • 2015 ACR/ARHP Annual Meeting
DNA Methylation Governs the Ability of Apoptotic Cells to Suppress Inflammatory Arthritis Via Reciprocal Regulation of IL-6 and TGF-Beta
Background/Purpose: Apoptotic cells (AC) have potent anti-inflammatory effects. Injection of apoptotic dendritic cells into mice suppresses the severity of antigen-induced arthritis through increased TGFβ production…Abstract Number: 2100 • 2015 ACR/ARHP Annual Meeting
Hypomethylation in Enhancer and Promoter Regions of Interferon Regulated Genes in Multiple Tissues Is Associated with Primary Sjögren’s Syndrome
Background/Purpose: Epigenetic modifications have emerged as important contributing factors in the pathogenesis of autoimmune diseases, including primary Sjögren’s syndrome (pSS), and may act as a…Abstract Number: 2174 • 2015 ACR/ARHP Annual Meeting
Neutrophils in Primary Antiphospholipid Syndrome Are Characterized By a Prominent Activated Phenotype and Uniquely Remodeled Chromatin Architecture
Background/Purpose: Antiphospholipid syndrome (APS) is a systemic autoimmune disease characterized by recurrent thrombotic events, pregnancy complications, and the presence of antiphospholipid antibodies. The pathogenesis of…Abstract Number: 3104 • 2015 ACR/ARHP Annual Meeting
Abnormal DNA Methylation in a Novel PTPN11 Enhancer Increases Destructive Potential of Rheumatoid Arthritis (RA) Fibroblast-like Synoviocytes (FLS) and Joint Inflammation
Background/Purpose: Rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS) mediate disease pathogenesis by invading the joint extracellular matrix. The PTPN11 gene, encoding the tyrosine phosphatase SHP-2, is overexpressed…Abstract Number: 95 • 2015 ACR/ARHP Annual Meeting
Validation of Differential Methylation in Paternally Versus Maternally Transmitted Psoriatic Disease
Background/Purpose: Several studies have demonstrated excessive paternal transmission of psoriasis and psoriatic arthritis (PsA). This phenomenon is thought to be mediated by genomic imprinting. We…Abstract Number: 3128 • 2015 ACR/ARHP Annual Meeting
Genome-Wide DNA Methylation Analysis in Blood and Dermal Fibroblasts from Twin Pairs Discordant for Systemic Sclerosis
Background/Purpose: The etiology and mechanisms underlying the wide variation in disease heterogeneity and severity in systemic sclerosis (SSc) remain unknown. To assess the role of…Abstract Number: 1074 • 2015 ACR/ARHP Annual Meeting
DNA Methylation Patterns in Naïve CD4+ T Cells Identify Epigenetic Susceptibility Loci for Malar Rash and Discoid Rash in Systemic Lupus Erythematosus
Background/Purpose: Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by heterogeneous clinical manifestations, autoantibody production, and epigenetic dysregulation in T cells. We sought…Abstract Number: 2685 • 2014 ACR/ARHP Annual Meeting
Ten-Eleven Translocation 2 Protein Down-Regulates DNA Methylation of Interleukin-17A Promoter and Induces Its Expression in CD4+t Cells of Patients with Systemic Lupus Erythematosus
Background/Purpose: Recent evidence indicates that IL-17A plays a key role in the pathogenesis of autoimmune diseases, such as systemic lupus erythematosus (SLE). SLE patients have…Abstract Number: 2680 • 2014 ACR/ARHP Annual Meeting
DNA Hydroxymethylation Changes in CD4+T Cells from Patients with Systemic Lupus Erythematosus
Background/Purpose Recent studies have uncovered 5-hydroxymethylcytosine (5hmC) as the sixth base of the genome, and that the Ten-eleven translocation (TET) family proteins is responsible for…Abstract Number: 2447 • 2014 ACR/ARHP Annual Meeting
The Role of TET3-Mediated DNA Demethylation By Pro-Inflammatory Cytokines in Rheumatoid Arthritis
Background/Purpose In the pathogenesis of Rheumatoid arthritis (RA) RA fibroblast-like synoviocytes (RA FLS) exhibit a unique aggressive phenotype that contributes to the cytokine milieu and…Abstract Number: 1887 • 2014 ACR/ARHP Annual Meeting
Genome-Wide DNA Methylation Analysis of Twin Pairs Discordant for Systemic Sclerosis Reveals Distinct Signatures in Blood and Dermal Fibroblasts
Background/Purpose Systemic sclerosis (SSc) is a chronic, multisystem, autoimmune inflammatory disease with genetic and non-genetic contributions to risk. The etiology of SSc, including the reasons…Abstract Number: 1884 • 2014 ACR/ARHP Annual Meeting
Differential DNA Methylation Associated with Rheumatoid Arthritis in Disease Discordant Monozygotic Twins
Background/Purpose: Previous epigenetic studies of rheumatoid arthritis (RA) using prevalent cases and unrelated controls have indicated that DNA methylation is altered in patients with RA.…Abstract Number: 1121 • 2014 ACR/ARHP Annual Meeting
The mtDNA Haplogroups Influence the DNA Methylome of Articular Chondrocytes
Background/Purpose Mitochondria and DNA methylation play a main role in the development of Osteoarthritis. The aim of this work is to analyze the influence of…