In contrast, suppression of miR-2909 expression in T-lymphoblasts by antagomiR-2909 transfection had no effect on the percentage of cells in the G1 and S phases of the cell cycle (Figure 7C) and apoptosis (Figure 7D) relative to T-lymphoblasts transfected with scrambled RNA, further confirming that the mutant KLF4 in T-ALL was non-functional. Here, KLF4 is linked to acute lymphoblastic leukemia.