组织工程尿道重建的研究进展

目的综述组织工程技术在尿道重建中应用的近况.方法广泛查阅近年来有关组织工程尿道重建的文献并进行综述.结果目前已经能够在体外获取、培养和扩增出足够数量的尿路上皮细胞和平滑肌细胞.尿道重建包括只用支架材料,依靠机体诱导新生组织长入或者将细胞与材料复合修复尿道.结论组织工程材料修复尿道下裂、尿道狭窄的小段尿道缺损已获成功,但复杂尿道缺损的重建有待进一步研究.

ADVANCE IN URETHRAL RECONSTRUCTION WITH TISSUE ENGINEERING TECHNIQUES

Objective To sum up the research advances in urethra reconstruction with tissue engineering techniques. Methods The recent original articles about urethra reconstruction with engineering techniques were extensively reviewed. Results At present, human urothelium and smooth muscle cells have been successfully harvested,cultivated, and expanded in vitro in sufficient quantities for reconstruction. Tissue engineering for urethral reconstruction includes matrices alone, the body's natural ability which induces new tissue growth, or the use of matrices with cells. Conclusion The tissue engineering materials for urethral reconstruction has been used successfully to repair defect of hypospadias and urethral strictures. The reconstruction of complex urethral defects need to be improved and developed.