Fig. 7

Effect of miR-221 on cell growth and apoptosis of HCC Hep3B cells by Hoechst 33342/propidium iodide (PI) double fluorescent chromatin staining. HCC Hep3B cells were transfected with miR-221 inhibitor, mimic and different controls for 96 h and the cells were observed under microscope with Hoechst 33342/PI double fluorescent chromatin staining, × 200