Muscular tubes of urethra engineered from adipose-derived stem cells and polyglycolic acid mesh in a bioreactor

作者：Wang, Ying; Fu, Qiang^*; Zhao, Ren-Yan; Deng, Chen-Liang

来源：Biotechnology Letters, 2014, 36(9): 1909-1916.

DOI：10.1007/s10529-014-1554-x

• Adipose-derived stem cells
• Bioreactor
• Dynamic cell culture
• Polyglycolic acid
• Reconstruction
• Tissue engineering

We have explored the feasibility of using adipose-derived stem cells (ADSCs) and polyglycolic acid (PGA) for constructing muscular tubes of urethra in a bioreactor. With the induction of by 5-azacytidine, ADSCs were found to acquire a myoblast phenotype. Here we seeded ADSCs in a PGA mesh to construct the cell-PGA complex that was cultured statically for 1 week. Afterwards, the cell-PGA complex was subjected to extension stimulation in a bioreactor for 5 weeks. A muscular tube of urethra was formed after 6 weeks. Histological examination showed differentiated ADSCs and collagenous fibers had orientated well. This study demonstrates that tissue engineering of urethra tissues in vitro by using a bioreactor leads to tissue maturation and the differentiation of ADSCs. This novel technique could provide an effective approach for urethra tissue engineering.

• 出版日期2014-9
• 单位上海交通大学