Figure 4.
Expression of miR-21 in A549 cells among three groups after transfection detected by qRT-PCR.
Note: **Compared with the NC group or mock group, P<0.01.
Abbreviations: miR-21, microRNA-21; qRT-PCR, real-time quantitative polymerase chain reaction; IN, inhibitor group; NC, negative control group; mock, mock group.