Fig. 3.
Knockdown of c-MET expression by siRNA in small-cell lung cancer cells. (a) c-MET gene expression was examined using real-time RT-PCR. (b) c-MET and p-MET protein expression was determined using Western blotting. (c) Growth inhibition of stepwise 7-ethyl-10-hydroxycamptothesin (SN-38) or paclitaxel (TXL) concentration in SN-38-resistant (PC-6/SN-38) or TXL-resistant (PC-6/TXL) cells transfected with c-MET siRNA (si MET; ▴) or negative-control (▪) was examined by MTS (3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt) assay.