The transfection efficiency of rAAV1/2-lacZ vector gene from umbilical mesenchymal stem cells cultured in vitro is satisfactory and becomes higher as MOI increased.

• 体外培养的脐血间质干细胞能高效转染重组腺相关病毒1/2载体-lacZ报告基因,在一定感染复数范围内,细胞转染率随着感染复数的增加而升高。