Objective:To study the function of apoptosis induction of arsenic trioxide(As2O3)in Ewing sarcoma cell line RD-ES and down-regulation of EWS-FLi1 fusion protein in vitro.

• 目的:探讨三氧化二砷(Arsenictrioxide,As2O3)诱导尤文肉瘤细胞凋亡及对融合蛋白EWS-FLi1表达的影响。