Background: Survivin, a tiniest member of inhibitors-of-apoptosis gene family, is expressed in all the most common cancers but not in normal differentiated adult tissues.

• 背景：Survivin是IAP家族中的一个最小成员，它可选择性的在胎儿组织及常见人类肿瘤中表达，但在正常分化成熟组织中不表达。