Fig. 1

miR-21 enhanced growth and migration in human non-small cell lung cancer cells. a and b miR-21 enhanced cell migration in A549 cells. Cells were transfected with miR-21 mimic or mimic control. At 24 h or 48 h after transfection, migration abilities of cells were detected. c miR-21 mimic transfection enhanced miR-21 expression level. A549 cells were transfected with miR-21 mimic or mimic control. The miR-21 expression level was detected. A549 cells (d) or H1703 cells (e) were transfected with miR-21 mimic or mimic control. Cell number was counted after trypan blue staining. **P < 0.01, ***P < 0.001