Since heme oxygenase expression is a general response to oxidative stress in mammalian cells , investigation of how heme oxygenase is regulated by arsenic will help us to understand the mechanisms of arsenic - induced oxidative stress and also to characterize the roles of heme oxygenase in protecting cells from oxidative injury 由于原血红素加氧酵素( hemeoxygenase )持续的表现于cl3r15抗砷细胞;而原血红素加氧酵素的表现为细胞对氧化性伤害的一般反应,但其扮演的角色却仍不清楚。