We have also determined the dose response of among the urothelial carcinoma cell lines (UM-UC1, UM-UC3, UM-UC5, UM-UC6, UM-UC13, RT4, 253JP, 253J-BV, KU7) to different concentrations of EGFR inhibitor (gefitinib) and PPARγ agonist (DIM-C) after 72 hs of treatment (Figure 1 B). This evidence concerns the gene EGFR and urothelial carcinoma.