Method:Purified AFP from human cord blood serum was used to act on the hepatoma Bel7402 cells culture in vitro, and the concentration changes of Ca2+ were observed by confocal microscopic scanning.

• 方法:采用由脐带血血清中提纯的AFP作用于体外培养的人肝癌Bel7402细胞,通过共聚焦显微镜扫描,观察不同时间细胞内Ca2+浓度的变化。