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Preparation and Features of Polycaprolactone Vascular Grafts with the Incorporated Vascular Endothelial Growth Factor

机译:聚己内酯血管移植物与血管内皮生长因子的制备与特征

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The development of tissue-engineered small-diameter vascular grafts is an urgent issue in cardiovascular surgery. In this study, we assessed how the incorporation of the vascular endothelial growth factor (VEGF) affects morphological and mechanical properties of polycaprolactone (PCL) vascular grafts along with its release kinetics. Vascular grafts were prepared using two-phase electrospinning. In pursuing our aims, we performed scanning electron microscopy, mechanical testing, and enzyme-linked immunosorbent assay. Our results demonstrated the preservation of a highly porous structure and improvement of PCL/VEGF scaffold mechanical properties as compared to PCL grafts. A prolonged VEGF release testifies the use of this construct as a scaffold for tissue-engineered vascular grafts.
机译:组织工程的小直径血管移植物的发展是心血管外科的紧急问题。在这项研究中,我们评估了血管内皮生长因子(VEGF)的掺入方式如何影响多己内酯(PCL)血管移植物的形态和力学性能以及其释放动力学。使用两相静电纺丝制备血管移植物。在追求我们的目标时,我们进行了扫描电子显微镜,机械测试和酶联免疫吸附测定。我们的结果表明,与PCL移植物相比,保存了高度多孔结构和改善PCL / VEGF支架机械性能。延长的VEGF释放证明了这种构造作为组织工程血管移植物的支架。

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