中国组织工程研究与临床康复2009，Vol.13Issue(11)：2178-2182,5.
利用人骨髓间充质干细胞在生物反应器中构建小口径血管
Construction of small-sized blood vessels in a bioreactor using human bone marrow stromal stem cells
摘要
Abstract
BACKGROUND: There are plentful studies about bioreactor of tissue engineering of blood vessel, tendon, cartilage, heart valve,trachea, bladder and stern cell. OBJECTIVE: To construct small-sized tissue-engineerad blood vessels with human bone marrow stromal stem cells (hBMSCs) in improved bioreactor system.DESIGN, TIME AND SETTING: The single sample observation stuay was performed at the School of Mechanical and Power Engineering, East China University of Science&Technology, and Shanghai Tissue Engineering Research & Development Center from June 2005 to March 2008.MATERIALS: Vessel bioreactor was self-made by East China University of Science&Technology. hBMSCs were harvested from healthy volunteers. METHODS: A set of support bracket constructing tissue engineered blood vessels with the diameter of 2 mm was designed with the application of Finite Element Methods as an analysis method analyzing support bracket of tissue engineered small-sized blood vessel. Primary hBMSCs were first Collected and further cultivated exvivo. The third passage cultured cells were then seeded on the polyglycolic acid (PGA) to fabricate the cell-scaffold composite. Subsequently, this composite was subjected to dynamical culture in the blood vessel bioreactor. After cultured for 4 weeks, the composite was removed from the bioreactor.MAIN OUTCOME MEASURES: The following mentioned references were measured: composite growth; other correlation detection of the hBMSCs-PGA composite, RESULTS: Gross observation and scanning electron microscope were used at4 weeks after hBMSCs-PGA composite culture. It was observed that the tissue-engineered blood vessel had a bright color and certain elasticity. The blood vessel could rebound to its odginal shape after repeated press by the forceps.The secreted collagen matrix arrayed orderly around the cells and smooth muscle elastic acttn could also be detected in the formed tissues using immunohistochemistry. CONCLUSION: The in vivo mechanics conditions of blood vessels can be simulated using the current blood vessel bioreactor system. Using hBMSCs, the construction of tissue engineered small-sized blood vessels can be successfully achieved.关键词
组织工程/血管生物反应器/骨髓间充质干细胞/流体力学分类
医药卫生引用本文复制引用
李宏,安琦,吴莹琛,周彬,崔磊,刘伟,曹谊林..利用人骨髓间充质干细胞在生物反应器中构建小口径血管[J].中国组织工程研究与临床康复,2009,13(11):2178-2182,5.基金项目
973计划资助项目(2005CB522703) the Program of 973 Plan, No, 2005CB522703 （2005CB522703）
