首页> 中文期刊> 《中国组织工程研究》 >用于心血管医疗装置的聚合物材料表面构建与生物相容性评价:聚合物生物材料表面的内皮细胞组织工程化改性

用于心血管医疗装置的聚合物材料表面构建与生物相容性评价:聚合物生物材料表面的内皮细胞组织工程化改性

         

摘要

BACKGROUND:As the cardiovascular device, biomaterials applied under the blood-contact conditions should have anti-thrombotic, anti-biodegradable and anti-infective properties. OBJECTIVE:To review the research progression in polymer materials for implantation and intervention in cardiovascular tissue engineering and to explore the biocompatibility, blood compatibility and cytocompatibility of the surface-modified polymer biomaterials based on the surface endothelialization using tissue engineering techniques. METHODS:We retrieved PubMed and Wanfang databases for relevant articles publishing from 1963 to 2015. The key words were“Biocompatibility, Blood compatibility, Biomedical Materials, Biomedical polymer materials”in English and Chinese, respectively. Those unrelated, outdated and repetitive papers were excluded. Literatures addressing the blood compatibility, biocompatibility, and cytocompatibility of the surface-modified polymer biomaterials based on the surface endothelialization using tissue engineering techniques were investigated by summarizing function of vascular endothelial cel s, tissue-engineered endothelial cel s on the implant surface, fixation of cel growth-promoting factor on the surface of polymeric biomaterials, and endothelialization of the material surface. RESULTS AND CONCLUSION:Total y 71 relevant articles were included. The tissue-engineered modification of endothelial cel s on the surface of polymer biomaterials and their biocompatibility and cel compatibility are crucial for developing novel polymer materials for implantation and intervention in cardiovascular tissue engineering. Through in-depth studies of the types and applications of polymer biomaterials, cardiovascular medical devices and implantable soft tissue substitutes, the differences between the surface and the body wil be reflected in the many layers of molecules extending from the surface to the body. Two major factors, surface energy and molecular mobility, determine the body/surface behaviors that include body/surface differences and phase separation. Considering the difference between the body/surface composition, an additional determinant is indispensable, that is, the crystal ization behavior of each component.%背景:用于心血管医疗的生物材料在血液接触性条件下必须具有抗血栓性、对抗生物降解性与抗感染性。  目的:综述用于心血管组织工程的新型植(介)入型聚合物材料(表面)研究进展,从聚合物生物材料表面的内皮细胞组织工程化改性方面考察各种相应改性表面的生物相容性、血液相容性和细胞相容性。  方法:第一作者计算机检索1963至2015年PubMed数据库及万方数据库。英文检索词为“Biocompatibility,Blood compatibility , Biomedical Materials , Biomedical polymer materials”,中文检索词为“生物相容性材料,血液相容性材料,生物医用材料,医用高分子材料”。排除与研究目的相关性差及内容陈旧、重复的文献,保留与生物医用高分子材料的血液相容性研究,进行归纳总结。通过对血管内皮细胞的功能、移植物表面的内皮细胞组织工程化、聚合物生物材料表面促细胞生长因子的固定方法、材料表面内皮化4方面的归纳分析,从聚合物生物材料表面的内皮细胞组织工程化改性方面考察了各种相应改性表面的生物相容性、血液相容性和细胞相容性。  结果与结论:共纳入71篇文献。研制用于心血管组织工程的新型植(介)入型聚合物材料(表面)关键在于对聚合物生物材料表面的内皮细胞组织工程化改性以及对其相应生物相容性与内皮细胞相容性的研究。通过对心血管医疗用聚合物生物材料的种类与应用及其心血管医疗器件和可植入性软组织替代物的深入研究可以发现材料表面与本体的差异则将体现在从表面向本体延伸的很多层分子上,而表面能和分子运动性这2种主要因素决定了其包括本体/表面差异及表面相分离在内的本体/表面行为。如果考虑到对本体-表面的组成差异的理解,则还必须追加另以附加决定因素,即各组分的结晶行为。

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