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Elevated serum soluble vascular adhesion protein-1 (VAP-1) in patients with active relapsing remitting multiple
Laura Airas1, Jari Mikkola, Jani M Vainio
1Department of Neurology and MediCity Research Laboratory, University of Turku, PO Box 52, 20521Turku, Finland. laura.airas@utu.fi
Abstract:
Vascular adhesion protein-1 (VAP-1) is an endothelial cell molecule which controls leukocyte infiltration into tissues. Elevated serum soluble VAP-1-levels have been described in certain diseases with an inflammatory component. VAP-1 expression or function has not previously been studied in multiple sclerosis (MS). We report here that the concentration of soluble VAP-1 in serum is significantly higher in multiple sclerosis patients with ongoing inflammatory activity, as demonstrated by gadolinium-enhancing MRI lesions, when compared to patients with no gadolinium-enhancing lesions (555+/-195 vs. 388+/-102 ng/ml, p=0.0068). We propose that VAP-1 might participate in controlling leukocyte entry into inflamed brain.
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