The delay in tumour growth for VNP pRA-TR with 2 Gy radiation was significantly greater than the control treatments, VNP pRA-ZsG with 2 Gy irradiation and VNP pRA-TR alone (Figure 4C; P<0.05), indicating that both TRAIL expression and induction by radiation were necessary for maximum growth delay. Here, TNFSF10 is linked to neoplasm.