BPI-ANCA is found in reactive arthritis caused by Yersinia and Salmonella infection and recognise exclusively the C-terminal part of the BPI molecule

H. Schultz, E. Csernok*, S. Nikkari, P. Toivanen, A. Toivanen, W. L. Gross

*Corresponding author for this work
12 Citations (Scopus)

Abstract

Objective: To examine the prevalence, binding sites and functional interactions of antineutrophil cytoplasmic autoantibodies (ANCA) against the bactericidal/permeability increasing protein (BPI) in reactive arthritis (ReA). Methods: Sera were analysed for the occurrence of ANCA by indirect immunofluorescence microscopy (IIF) and ELISA. Binding sites were determined using BPI, lipopolysaccharid binding protein (LBP), and fusion proteins of both proteins in ELISA. In addition, the effect of antibodies on the antibiotic activity of BPI was examined. Results: BPI-ANCA was found in patients with Yersinia- and Salmonella-triggered ReA and directed against the C-terminal portion of BPI. Goat anti BPI antibodies recognising this part inhibited the antibiotic activity of BPI in vitro. Conclusion: BPI-ANCA was associated with ReA triggered by Salmonella and Yersinia infection. Directed against the C-terminal part of BPI, it can potentially inhibit its antibiotic activity and might be useful to identify patients with infectious bowel disease prone to extraintestinal sequelae.

Original languageEnglish
JournalScandinavian Journal of Rheumatology
Volume29
Issue number4
Pages (from-to)226-231
Number of pages6
ISSN0300-9742
DOIs
Publication statusPublished - 2000

Research Areas and Centers

  • Academic Focus: Center for Infection and Inflammation Research (ZIEL)

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