Development of tissue-engineered chitosan-polycaprolactone blends for vascular surgery

Abstract

Tissue engineering provides the opportunity to minimize some possible negative results of the synthetic vascular grafts in long-term follow-up. The choice of the optimal scaffold and cell source for seeding are key conditions to bring properties of vessel substitute to physiological. In some works it is shown that a chitosan-polycaprolactone blend is a suitable biodegradable material for tissue engineering. In this paper we suggest an efficient method to generate of tissue-engineered chitosan-polycaprolactone blends, cellularized by endothelial cells of human cardiac explants. The cells cultured on the blended membranes retain their functional properties: viability and proliferative properties; maintain specific endothelial antigens and synthesis of extracellular matrix. These results suggested that tissue-engineered chitosan-polycaprolactone blends seeded by endothelial cells of human cardiac explants may be potential to development of substitutes for small diameter blood vessels.

Keywords

tissue engineering / endothelial cells / polycaprolactone / chitosan / vascular surgery

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