(A) Effects of overexpression of PI3K/Akt on the protein expression of E-cadherin, N-cadherin, vimentin, phospho-Akt, and Akt of A549 lung cancer cells. (B) Quantitative result of E-cadherin, N-cadherin, vimentin, phospho-Akt, and Akt proteins expression of A549 lung cancer cells transfected with pcDNA3.1(+)-Akt or pcDNA3.1 vector. (C) Effects of overexpression of ERK on the protein expression of E-cadherin, N-cadherin, vimentin, phospho-ERK1/2, and ERK1/2 of A549 lung cancer cells. (D) Quantitative result of E-cadherin, N-cadherin, vimentin, phospho-ERK1/2, and ERK1/2 proteins expression of A549 lung cancer cells transfected with pcDNA3.1(+)-ERK or pcDNA3.1 vector. Bars represent mean ± S.D. (n=3). *P<0.05, **P<0.01, and ***P<0.001 were considered to indicate a statistically significant difference compared with the normal control. #P<0.05, ##P<0.01, and ###P<0.001 were considered to indicate a statistically significant difference compared with the Isorhamnetin (10 μM)-treated control.