In addition, pretreatment of tumour cells with NAC (4 mmol/L, 2 hours) markedly blocked δ‐TT‐related MAPK activation (15 μg/ml, 24 hours), suggesting that JNK and p38 upregulation is critically implicated in the ROS‐mediated apoptotic OC cell death caused by the compound (Figure 7). Here, MAPK8 is linked to neoplasm.