PMCCPMCCPMCC

Search tips
Search criteria 

Advanced

 
Logo of arthresbiomed central web sitesearch.manuscript submission.see also journal with issn 1478-6354registration.reference to the article.journal front page.
 
Arthritis Res. 2001; 3(Suppl A): P089.
Published online Jan 26, 2001. doi:  10.1186/ar258
PMCID: PMC3273254
Serum levels of matrixmetalloproteinases MMP1 (collagenase) and MMP3 (stromelysin) before and after treatment with leflunamide in patients with rheumatoid arthritis
H Mangge,1 P Gratze,1 and S Hermann2
1Departments of Laboratory Diagnosis
2Internal Medicine, University Graz, Austria
Supplement
21st European Workshop for Rheumatology Research
Conference
21st European Workshop for Rheumatology Research
1-4 March 2001
Vienna, Austria
Received January 15, 2001
Objective
Leflunamide has been proven to be efficient in reducing joint inflammation and destruction in patients with rheumatoid arthritis (RA). This study was conducted to examine effects of leflunamide on serum levels of matrixmetalloproteinases MMP1 and MMP3 in patients with RA.
Methods
In a prospective clinical trial, we measured in 24 patients suffering from RA, as defined by ACR criteria, serum activities of MMP1 and MMP3 by means of ELISA. Analysis of MMPs was performed before and after a treatment period of approximately 3 months (84 ± 14 days, mean ± SD) with leflunamide. Additionally, conventional inflammatory parameters (CRP, ESR) and clinical data of RA activity were determined.
Results
Leflunamide treatment lead to a highly significant reduction of MMP1 serum activity (p < 0.001), whereas MMP3 values were not influenced. Furthermore, the number of painful (p < 0.01) and swollen (p < 0.05) joints decreased significantly as well as clinical inflammatory joint activity scores (GLASS, p < 0.001) and levels of CRP (p < 0.05).
Conclusion
In accordance with recent data, leflunamide is effective in reducing the clinical inflammatory activity of RA, and in decreasing the activity of matrix-degrading factors like MMP1. The differential effect of this immunomodulative drug on MMP1 and MMP3 will be explored in further investigations.
Articles from Arthritis Research are provided here courtesy of
BioMed Central