NPC1 and nasopharyngeal carcinoma: CCK-8 assay showed that the proliferation of NPC-1 cells transfected with miR-424-5p mimics was significantly reduced compared with that in the miR-NC group (P<0.05 at all points), while the proliferation of NPC-1 cells transfected with both miR-424-5p mimics and AKT3 was similar to that in the miR-NC group (P>0.05 at all points) (Figure 6B).