Ceramide as an important member of sphingolipid is a second messenger responsible for regulating cellular activities, whose major function is to transmit growth-inhibiting signals including apoptotic.

• 神经酰胺作为神经鞘脂类的主要成员之一,是一个主要调节细胞活动的第二信使,以转导细胞凋亡等细胞生长抑制活动信号为主。