Abstract Number: 2913 • 2014 ACR/ARHP Annual Meeting
Does Corticosteroid Therapy at Disease Onset Influence Disease Progression of RA? Results from the Swiss Prospective Observational Cohort
Background/Purpose Anti-inflammatory and disease-modifying properties of glucocorticoids (GCs) have been demonstrated in patients with rheumatoid arthritis (RA). Better outcomes in trials by combinations of synthetic…Abstract Number: 2518 • 2014 ACR/ARHP Annual Meeting
What Is the Level of Agreement Between Disease Activity Indices and Response Criteria Among Rheumatoid Arthritis Patients Treated with TNF Inhibitors?
Background/Purpose: Several standardized response criteria and disease activity indices are used to assess treatment efficacy in rheumatoid arthritis (RA). These measures comprise different types and…Abstract Number: 2145 • 2014 ACR/ARHP Annual Meeting
Diagnostic Performance and Disease Activity Assessment By FDG-PET in Large-Vessel Vasculitis: A Systematic Literature Review and Meta-Analysis
Background/Purpose: FDG-PET is increasingly used in the work up of large-vessel vasculitis (LVV). The purpose of this study is to perform a systematic review and…Abstract Number: 1584 • 2014 ACR/ARHP Annual Meeting
Evaluation of the Patient Acceptable Symptom State in Patients with Psoriatic Arthritis
Background/Purpose The Patient Acceptable Symptom State (PASS), a single-question outcome, has been defined as an absolute level of patient well-being, which was used in the…Abstract Number: 1238 • 2014 ACR/ARHP Annual Meeting
Proportion of Peripheral Plasmacytoid Dendritic Cells and Plasmablasts Reflects Disease Activity in IgG4-related Disease
Background/Purpose Immunoglobulin (Ig) G4-related disease (IgG4-RD) is a recently recognized fibro-inflammatory disease with multi-organ system involvement. Affected patients frequently have a history of bronchial asthma and allergic rhinitis. The reported pathogenesis of IgG4-RD describes the clear involvement of excessive Th2 cells and regulatory immune reaction in addition to plasma cells 1). However, peripheral immune cell phenotype, which reflects disease status, has not been comprehensively evaluated. Our aim was to definitively determine peripheral blood cell abnormalities and their correlation with disease activity in patients with IgG4-RD.Methods Peripheral blood samples were obtained from active untreated IgG4-RD patients (n=11) and healthy controls (n=16). Comprehensive immunophenotyping assay with information on activation status was done by multi-color flow cytometry, and the proportion of peripheral blood mononuclear cells (PBMCs), including T cells (naïve/memory, Th1/2/17, Treg, and Tfh), B cells (naïve/memory, plasmablast, Breg), monocytes (classical, intermediate, non-classical) and dendritic cells (myeloid, plasmacytoid), and their activity status were precisely defined. Disease activity was measured using the IgG4-RD responder index (RI). Statistical analysis was done using the Mann-Whitney U test and Spearman rank correlation coefficient test.Results The proportion of plasmablasts (CD19+CD20-CD27+CD38+), memory Th2 cells (CD3+CD4+CXCR3-CCR6-CD45RA-), Tregs (CD3+CD4+CD25+CD127low), Tfh (CD3+CD4+CXCR5+), and mDCs (CD3-CD19-CD14-HLA-DR+CD1c+CD303-) in peripheral blood was significantly increased in IgG4-RD patients compared with HC, whereas the proportion of pDCs (CD3-CD19-CD14-HLA-DR+CD1c-CD303+)was significantly decreased. Interestingly, the proportion of pDCs in total DCs was negatively correlated with IgG4-RD RI (r=-0.778, p=0.005) while the proportion of plasmablasts in CD19+cells was positively correlated with RI (r=0.701, p=0.016). Further, the increased proportion of plasmablasts was positively correlated with serum IgG4 level (r=0.718, p=0.013) while the decreased proportion of pDCs tended to be negatively correlated with the number of affected organs (r=-0.518, p=0.061). Conclusion Our comprehensive analysis identified distinct proportional changes in PBMCs in IgG4-RD. In particular, the decrease in pDCs and increase in plasmablasts were strongly linked with disease activity. These combined measurements are expected to be clinically useful surrogate cell markers. This newly identified decrease in circulating pDCs may be involved in the pathogenesis in IgG4-RD via the recently described role in the enhancement of Th2 response 2).References: 1) Stone JH et.al. N Engl J Med 2012;366:539-51 2) Maazi H et.al. Allergy 2013;68:695-701Abstract Number: 720 • 2014 ACR/ARHP Annual Meeting
Measures of Disease Status in Systemic Sclerosis: Systematic Review
Background/Purpose : To identify the measures of disease status in systemic sclerosis (SSc) using a systematic review. Methods: A systematic review of Medline (1966-2014), EMBASE…Abstract Number: 426 • 2014 ACR/ARHP Annual Meeting
Exploring the DAS: What Is the Level of Agreement in the Classification of Remission and Low Disease Activity (LDA) Among the Various Versions of the Disease Activity Score (DAS) and Their Correlation? an Analysis from a Prospective, Observational Registry
Background/Purpose: Two versions of DAS28 are available, DAS28-4 comprising 4 variables [tender and swollen joint counts, acute phase reactant (APR), and patient global assessment] and…Abstract Number: 350 • 2014 ACR/ARHP Annual Meeting
Rho-Associated Protein Kinase (ROCK) Activity Is Elevated in Rheumatoid Arthritis (RA) Patients and May be Responsive to RA Therapies
Background/Purpose: Rho-associated protein kinases (ROCKs) regulate cytoskeletal reorganization and gene expression through protein phosphorylation, and are implicated in the pathogenesis of a wide range of…Abstract Number: 2890 • 2014 ACR/ARHP Annual Meeting
Does a Family History of RA Influence the Clinical Presentation and Treatment Response in RA?
Background/Purpose: Since family history of RA is among the strongest risk factors for developing the disease, individuals suspected to have RA are routinely asked about…Abstract Number: 2517 • 2014 ACR/ARHP Annual Meeting
Long-Term Clinical, Structural, and Functional Consequences of Not Adopting Treatment in MTX Suboptimal Responders
Background/Purpose: Methotrexate (MTX) is used as first line therapy for treatment of rheumatoid arthritis (RA). Current recommendations state that therapy should be adjusted if patients…Abstract Number: 2126 • 2014 ACR/ARHP Annual Meeting
The Utility of Digital Activity Fluorescence Optical Imaging in Quantifying Hand and Wrist Inflammation in Rheumatic Diseases
Background/Purpose The objective detection and quantification of disease activity in its earliest pathophysiological stage is critical for achieving optimal therapy results. Fluorescence optical imaging (FOI)…Abstract Number: 1577 • 2014 ACR/ARHP Annual Meeting
Value and Prediction of Minimal Disease Activity in Patients with Psoriatic Arthritis
Background/Purpose The prediction of treatment outcomes based on early response could be useful in guiding decisions to adjust therapy. The objective was to determine if…Abstract Number: 1147 • 2014 ACR/ARHP Annual Meeting
Economic Implications of Flares Among Patients with Early Rheumatoid Arthritis (RA)
Background/Purpose: Government mandated dose tapering and withdrawal of biologic treatments for RA after achievement of sustained disease control is currently observed in Taiwan, the Netherlands,…Abstract Number: 701 • 2014 ACR/ARHP Annual Meeting
How Important Is Physical Activity for Patients with Systemic Lupus Erythematodes? -Results of Lula-Study
Background/Purpose Physical activity (PA) plays a decisive role in primary and secondary prevention in various domains of medicine. Our examination aimed to determine association PA…Abstract Number: 422 • 2014 ACR/ARHP Annual Meeting
Correlation of RAPID3, DAS28 and CDAI in Disease Activity and Effects of Education Level and Co-Morbid Diseases on This Assesment in RA
Background/Purpose RAPID3 is an activity index based on only the patient's report in RA. It doesn’t require joint counts and it isn’t time consuming. Therefore…
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