First Author | Sedding D | Year | 2006 |
Journal | J Exp Med | Volume | 203 |
Issue | 13 | Pages | 2801-7 |
PubMed ID | 17145954 | Mgi Jnum | J:124599 |
Mgi Id | MGI:3722017 | Doi | 10.1084/jem.20052546 |
Citation | Sedding D, et al. (2006) The G534E polymorphism of the gene encoding the factor VII-activating protease is associated with cardiovascular risk due to increased neointima formation. J Exp Med 203(13):2801-7 |
abstractText | The G534E polymorphism (Marburg I [MI]) of factor VII-activating protease (FSAP) is associated with carotid stenosis and cardiovascular disease. We have previously demonstrated that FSAP is present in atherosclerotic plaques and it is a potent inhibitor of vascular smooth muscle proliferation and migration in vitro. The effect of wild-type (WT)- and MI-FSAP on neointima formation in the mouse femoral artery after wire-induced injury was investigated. Local application of WT-FSAP led to a 70% reduction in the neointima formation, and this effect was dependent on the protease activity of FSAP. MI-FSAP did not inhibit neointima formation in vivo. This is due to a reduced proteolytic activity of MI-FSAP, compared to WT-FSAP, toward platelet-derived growth factor BB, a key mediator of neointima development. The inability of MI-FSAP to inhibit vascular smooth muscle accumulation explains the observed linkage between the MI-polymorphism and increased cardiovascular risk. Hence, FSAP has a protective function in the vasculature, and analysis of MI polymorphism is likely to be clinically relevant in restenosis. |