In addition, PPARγ1 is present in human urological cancer cells (i.e., renal cell, prostate, bladder and testicular cancer) (4) and colon cancer cells (5), where ligand-dependent activation by antidiabetic drugs, such as thiazolidinediones, which include pioglitazone, rosiglitazone, troglitazone and ciglitazone, leads to apoptosis (6) and an antiproliferative effect (7). This evidence concerns the gene PPARG and malignant colon neoplasm.