The prevalence and clinical significance of autoantibodies to plasminogen activator inhibitor 1 in systemic lupus erythematosus.

RL Bates, S J Payne, S L Drury, P N Nelson, D A Isenberg, J J Murphy, G Frampton

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We have recently described the novel autoantigen plasminogen activator inhibitor (PAI-1) in systemic lupus erythematosus (SLE). The aim of this study was to determine the prevalence and clinical significance of anti-PAI-1 autoantibodiesin patients with SLE. Autoantibodies to recombinant PAI-1 were measured in retrospective sera of 48 lupus patients by immunoassay in order to assess their clinical significance. This showed that 71% of sera from 48 lupus patients had significantly elevated anti-PAI-1 autoantibodiesas compared with normal control subjects (P < 0.0001). There was a weak but significant (P < 0.043) correlation with anti-dsDNA autoantibodies. In longitudinal studies, autoantibodies against PAI-1 correlated with clinical parameters measured by the BILAG disease activity index including global clinical score. Our study demonstrates the high frequency of novel autoantibodies to PAI-1 in patients with lupus. The serial clinical correlations with anti-PAI-1 autoantibodies also support the hypothesis that these autoantibodies may play a pathogenic role in lupus
Original languageEnglish
Pages (from-to)617-622
JournalLupus
Volume12
Issue number8
Early online date1 Aug 2003
DOIs
Publication statusPublished - Aug 2003

Fingerprint

Dive into the research topics of 'The prevalence and clinical significance of autoantibodies to plasminogen activator inhibitor 1 in systemic lupus erythematosus.'. Together they form a unique fingerprint.

Cite this