Relative miRNA expression profiling for all cell samples. Each dot corresponds to one miRNA analyzed in one cell sample. The mean Cq is plotted on the X axis whereas the relative expression (2ΔΔCq) is plotted on the Y axis. Continuous and discontinuous red lines represent respectively mean and SD response to irradiation for all samples. The black dot line corresponds to miRNAs with the same Cq in irradiated and non-irradiated samples. Colored dots represent significantly modulated miRNA (bilateral paired t-test p<0.05, n=3 or n=4). Empty dots represent control small RNAs RNU6-1 (triangle), SNORD44 (circle) and SNORD48 (square) response to ionizing irradiation.