Figure 4. miR-222 directly targets PTEN for activating several downstream signal molecules.
(A and B) PTEN wild-type and mutant 3′-UTR region reporter activities were assayed as in the Methods. Data are presented as mean ± SE. **indicates significant difference compared to those of control cells (P < 0.01). (C) The levels of PTEN protein and its several downstream signal proteins in these cells were determined using Western blotting at 48 h after the transfection. Representative blotting images are shown.