EGFR and non-small cell lung carcinoma: Initially, we screened for the most potent cytotoxic MG analogs against NSCLC cell lines expressing wild-type EGFR (A549) and L858R/T790M EGFR (H1975) using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay.