PTGS2 and urinary bladder carcinoma: In the study of compound preparations, BJO (Lou et al., 2010) induced apoptosis of T24 bladder cancer cells, possibly by upregulating caspase-3 and caspase-9 expression by activating the caspase pathway and inhibiting the NF-ΚB and Cyclooxygenase-2 (COX-2).