Fig. 1

MTE suppressed lung cancer cell proliferation in vitro. MTT assay was performed to detect IC50 of MTE after 24, 48 and 72 h treatment in a A549 cells; b H1975 cells. Data were represented as mean ± SEM from three independent experiments. *P < 0.05, **P < 0.01, ***P < 0.005 vs control group