Figure 2

Effects of varying concentrations of l-deprenyl and varying radiation doses on the % of HaCaT or HaCaT-ras cell colonies surviving treatment. Cells were plated in medium containing 1 nM l-deprenyl and irradiated 6 h later. Absolute control plating efficiency values were 34.5±2.7 for HaCaT cells and 56.7±3.7 for HaCaT-ras cells.