Elastin-like recombinamer-covered stents: Towards a fully biocompatible and non-thrombogenic device for cardiovascular diseases

IG de Torre, F Wolf, M Santos, L Rongen, M Alonso… - Acta biomaterialia, 2015 - Elsevier
IG de Torre, F Wolf, M Santos, L Rongen, M Alonso, S Jockenhoevel, JC Rodríguez-Cabello
Acta biomaterialia, 2015Elsevier
We explored the use of recently developed gels obtained by the catalyst free click reaction of
elastin-like recombinamers (ELRs) to fabricate a new class of covered stents. The approach
consists in embedding bare metal stents in the ELR gels by injection molding, followed by
endothelialization under dynamic pressure and flow conditions in a bioreactor. The
mechanical properties of the gels could be easily tuned by choosing the adequate
concentration of the ELR components and their biofunctionality could be tailored by inserting …
Abstract
We explored the use of recently developed gels obtained by the catalyst free click reaction of elastin-like recombinamers (ELRs) to fabricate a new class of covered stents. The approach consists in embedding bare metal stents in the ELR gels by injection molding, followed by endothelialization under dynamic pressure and flow conditions in a bioreactor. The mechanical properties of the gels could be easily tuned by choosing the adequate concentration of the ELR components and their biofunctionality could be tailored by inserting specific sequences (RGD and REDV). The ELR-covered stents exhibited mechanical stability under high flow conditions and could undergo crimping and deployment without damage. The presence of RGD in the ELR used to cover the stent supported full endothelialization in less than 2 weeks in vitro. Minimal platelet adhesion and fibrin adsorption were detected after exposure to blood, as shown by immunostaining and scanning electron microscopy. These results prove the potential of this approach towards a new and more effective generation of covered stents which exclude the atherosclerotic plaque from the blood stream and have high biocompatibility, physiological hemocompatibility and reduced response of the immune system.
Elsevier
以上显示的是最相近的搜索结果。 查看全部搜索结果