PPARG and urinary bladder cancer: Recently, expression of PPARγ has been demonstrated in tumor cellsoriginating from various malignancies, including breast, colon, lung, gastric,pancreatic, prostate, and bladder cancer and its activation through PPARγ agonists led to a significant decrease inproliferation of tumor cells in vitro [15–21], however, theexact mecahnisms underlying this effect are still being explored.