目的：研究三氧化二砷体外对K562细胞凋亡的诱导作用，探讨三氧化二砷促进慢粒细胞系k562细胞凋亡的机制。
Objective: to investigate the apoptosis inducing function of arsenic trioxide on CML cell line K562 in vitro and elucidate the possible cellular and molecular mechanisms.
方法用1%多聚甲醛固定嗜酸粒细胞和支气管上皮细胞系BEAS-2B细胞；
Methods Eosinophils and BEAS-2B cells were fixed with 1 % paraformaldehyde for 1h separately.
方法用1%多聚甲醛固定嗜酸粒细胞和支气管上皮细胞系BEAS-2B细胞；
Methods Eosinophils and BEAS-2B cells were fixed with 1 % paraformaldehyde for 1h separately.
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