Consistent with a specific effect of gefitinib on the EGFR, Erbitux, a monoclonal antibody specifically targeting the EGFR, similarly induces FGFR2 and FGFR3 expression in the same NSCLC cell lines that are responsive to gefitinib (Figure 1C). This evidence concerns the gene FGFR2 and non-small cell lung carcinoma.