Fig. 4

CuB reversed TGF-β1-induced EMT in A549 cells through PI3K/Akt/mTOR pathway. a Western blotting assay detect the proteins expression of p-PI3K, p-Akt and p-mTOR expression in A549 cells after co-treated with CuB and TGF-β1 for 48 h. b–d The statistic results of protein expression of Fig. 3a, ^###P < 0.001 vs control group, ^*P < 0.05, ^***P < 0.001 vs TGF-β1 group