The expression of p-MEK4,JNK,p-JNK,Caspase-3 and poly (ADP ribose) polymerase (PARP) were detected by Western blot before and after JNK signal was blocked by SP600125,a JNK inhibitor.

• 以Western blot法检测p-MEK4、JNK、p-JNK、Caspase-3及PARP蛋白在As2O3作用下及SP600125阻断JNK信号转导通路情况下的表达.