The laser confocal microscope and flow cytometry (FCM) were used to confirm the best infection dose. The expression on mRNA and protein levels of DCX and SPARC were detected by RT-PCR and Western blot. FCM was used to detect the apoptosis rate. The results showed that the best infection dose of U-87MG cells was 50MOI. DCX and SPARC were successfully expressed in U-87MG cells. Without irradiation, the apoptosis rates of Ad-GFP group, Ad-DCX group, Ad-SPARC group, and Ad-DCX-SPARC group were (1.05±0.42)%, (1.11±0.29)%, (1.18±0.37)%, and (1.12±0.40)%, respectively. And after 8 Gy dose irradiation, the apoptosis rates were (7.54±0.47)%, (23.23±2.72)%, (16.43±1.13)%, and (33.01±2.67)%, respectively. The results revealed that Ad-DCX-SPARC could augment the apoptosis induced by X-rays irradiation.Cited