Western blot analysis of pro-invasive proteins in A549 cells treated with AIR or FIR. (A) Representative blots of membranes probed with antibodies directed against c-MET, ERK1/2, phosphor ERK1/2, vimentin, E-cadherin, FAK, phospho FAK, AKT, phospho AKT, mTOR and phospho mTOR. Actin was used as loading control. (B) Quantification of protein expression relative to baseline expression from untreated A549 cells. Bars represent SEM from 3 independent experiments.