Inhibition of EGFR increases the anticancer effects of miRNA-223 in A549 cells. (A) Cell proliferation, (B and C) migration rate. Control, control group; miR-223, upregulated miRNA-223 expression group; EGFR inhibitor, upregulated miRNA-223 expression and EGFR inhibitor group. ##P<0.01 compared with the control group; **P<0.01 compared with the upregulated miRNA-223 expression group. Inhibition of EGFR increases the anticancer effects of miRNA-223 in A549 cells. (D and E) Apoptosis rate, (F) LDH activity, and (G) caspase-3/9 activity. Control, control group; miR-223, upregulated miRNA-223 expression group; EGFR inhibitor, upregulated miRNA-223 expression and EGFR inhibitor group. ##P<0.01 compared with the control group; **P<0.01 compared with the upregulated miRNA-223 expression group.