Fathi-Karkan Sonia, Banimohamad-Shotorbani Behnaz, Saghati Sepideh, Rahbarghazi Reza, Davaran Soodabeh
Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Golgasht St, Tabriz, Iran.
J Biol Eng. 2022 Mar 24;16(1):6. doi: 10.1186/s13036-022-00286-9.
Certain polymeric materials such as polyurethanes (PUs) are the most prevalent class of used biomaterials in regenerative medicine and have been widely explored as vascular substitutes in several animal models. It is thought that PU-based biomaterials possess suitable hemo-compatibility with comparable performance related to the normal blood vessels. Despite these advantages, the possibility of thrombus formation and restenosis limits their application as artificial functional vessels. In this regard, various surface modification approaches have been developed to enhance both hemo-compatibility and prolong patency. While critically reviewing the recent advances in vascular tissue engineering, mainly PU grafts, this paper summarizes the application of preferred cell sources to vascular regeneration, physicochemical properties, and some possible degradation mechanisms of PU to provide a more extensive perspective for future research.
某些聚合材料,如聚氨酯(PU),是再生医学中使用最普遍的一类生物材料,并且在多种动物模型中作为血管替代物得到了广泛研究。据认为,基于PU的生物材料具有与正常血管相当的性能,具备合适的血液相容性。尽管有这些优点,但血栓形成和再狭窄的可能性限制了它们作为人工功能性血管的应用。在这方面,已经开发了各种表面改性方法来提高血液相容性并延长通畅时间。在批判性地回顾血管组织工程(主要是PU移植物)的最新进展时,本文总结了优选细胞来源在血管再生中的应用、PU的物理化学性质以及一些可能的降解机制,以便为未来的研究提供更广泛的视角。