Figure 1: The numbers of migrating cells after irradiation with 0, 2, 5 and 8Gy were determined by the wound healing assay for the glioma cell lines LN18, LN229 and LNZ308. Cells were grown to confluent monolayers, wounded by scratching the surface as uniformly as possible with a pipette tip and afterwards irradiated. The number of migrated tumor cells in the wound was determined. The means of 4 tests per time point and dose were calculated after 12 hrs.