Figure 7. The effects of LncRNA-XIST on A549 cell proliferation and apoptosis by targeting miR-335/SOD2 axis. (A, B) Colony formation assay and (C) CCK-8 assay were used to detect A549 cell proliferation. (D, E) The apoptosis ratio of A549 cells was quantified by FCM. (F, H) ROS levels in A549 cells were detected by DHE staining, which were quantified by (G, I) Image J software. (“NS” represented no statistical significance, “*” represented p < 0.05, “**” represented p < 0.01).