PMID: 16532709Mar 15, 2006Paper

First experimental application of bevacizumab-eluting PC coated stent for inhibition of vasa vasorum of atherosclerotic plaque: angiographic results in a rabbit atheromatic model

Hellenic Journal of Cardiology : HJC = Hellēnikē Kardiologikē Epitheōrēsē
Christodoulos StefanadisNicholas Kipshidze

Abstract

Atheromatosis is associated with angiogenesis, through the development of a dense net of vasa vasorum. The role of vascular endothelial growth factor (VEGF) is important in this process. Bevacizumab, an antibody specific for VEGF, has recently been applied in the clinical field. We hypothesized that local delivery of bevacizumab by stent would inhibit the development of vasa vasorum at the stented arterial segment in an atheromatic rabbit model. We used 10 New Zealand rabbits under atherogenic diet for 3 weeks. We immersed a BiodivYsio stent into a solution of 4 ml bevacizumab as in previous studies. Both eluting stents and non-eluting BiodivYsio stents were implanted in the middle segment of the 2 iliac arteries of the animals, with the same procedural characteristics. Sacrifice following repeat angiogram was scheduled after 28 days. In all animals the procedure of stent loading with bevacizumab and stent implantation was successful. There was no acute or subacute thrombosis. Iliac artery lumen diameters before and immediately after stent placement were similar in all stent treatment groups. At euthanasia stent lumen diameters were similar in all groups. All stents were angiographically patent at the time of euthanasia without...Continue Reading

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