Synergy is achieved by complementation with Apo2L/TRAIL and actinomycin D in Apo2L/TRAIL‐mediated apoptosis of prostate cancer cells: Role of XIAP in resistance

Abstract

This study suggests that the combination of Act D-induced down-regulation of XIAP (Signal I) and Apo2L/TRAIL-induced release of cytochrome c (Signal II) leads to the reversal of resistance to Apo2L/TRAIL-mediated apoptosis in the tumor cells. The sensitization of tumor cells to Apo2L/TRAIL by Act D is of potential clinical application in the immunotherapy of drug/Apo2L/TRAIL refractory tumors.