Figure4.
Comparison of percentage of total apoptosis between cells treated with PSES-pAdenoVator-PSA-NDRG2-IRES-GFP (NDRG2 group), X-ray radiation (RT group) or combination of both (NDRG2+RT). As results indicated combination of X-ray radiation and NDRG2 overexpression have the potential to induce apoptosis about 30% more than each of the treatment alone represented a positive synergistic effect. *P<0.05 compared to NDRG2 and RT groups (Student t-test).