Sal inhibits TGF-β1-induced EMT in NSCLC cells via attenuation of the MMP-2 and MMP-9 signaling pathway. Sal's suppressive effect on tumor cell migration and invasion points to the prior MMP expression regulation because these proteins play an essential role in local proteolysis of EMT and cell migration 21, 22. The gene discussed is MMP2; the disease is non-small cell lung carcinoma.