The ACPA IgM fine specificity differs from the ACPA IgG antigen-recognition profile
نویسندگان
چکیده
منابع مشابه
The fine specificity of IgM anti-citrullinated protein antibodies (ACPA) is different from that of IgG ACPA
INTRODUCTION The antigen recognition pattern of immunoglobulin M (IgM) could, when directed against protein antigens, provide an indication of the antigenic moieties triggering new B cells. The half-life of IgM is short and memory B cells against T-cell-dependent protein antigens typically produce IgG and not IgM antibodies. In this study, we analyzed whether a difference exists between the fin...
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INTRODUCTION Patients with rheumatoid arthritis (RA) can be separated into two major subpopulations based on the absence or presence of serum anti-citrullinated protein antibodies (ACPAs). The more severe disease course in ACPA(+) RA and differences in treatment outcome between these subpopulations suggest that ACPA(+) and ACPA(-) RA are different disease subsets. The identification of T-helper...
متن کاملA genome-wide association study suggests contrasting associations in ACPA-positive versus ACPA-negative rheumatoid arthritis
BACKGROUND Rheumatoid arthritis (RA) can be divided into two major subsets based on the presence or absence of antibodies to citrullinated peptide antigens (ACPA). Until now, data from genome-wide association studies (GWAS) have only been published from ACPA-positive subsets of RA or from studies that have not separated the two subsets. The aim of the current study is to provide and compare GWA...
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Rheumatoid arthritis (RA) is associated with HLA-DRB1 shared epitope (HLA-DRB1SE) and anti-citrullinated protein autoantibodies (ACPAs). ACPAs precedes the onset of clinical and subclinical RA. There are strong data for three infectious agents as autoimmunity triggers in RA, namely Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans causes of periodontal disease (PD), and Epstein...
متن کاملDifferent properties of ACPA and IgM-RF derived from a large dataset: further evidence of two distinct autoantibody systems
INTRODUCTION The aim of this study was to examine seroconversion and the relationship with age and inflammation of autoantibodies in a large group of patients attending an outpatient rheumatology clinic. METHODS Levels of antibodies to citrullinated proteins/peptides (ACPAs) and IgM rheumatoid factor (IgM-RF) were determined in 22,427 samples collected from 18,658 patients. The diagnosis was ...
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ژورنال
عنوان ژورنال: Annals of the Rheumatic Diseases
سال: 2012
ISSN: 0003-4967,1468-2060
DOI: 10.1136/annrheumdis-2011-201234.4