Kinase inhibitor, PD98059, induces cell death in ETV1-positive prostate cancer (LNCaP) cells. LNCaP cells were seeded in 96 well plates. Cells were then treated with vehicle control and 10 μm, 20 μm, 30 μm, 40 μm. After 72 hours, MTT reagent (tetrazolium bromide salt) and 0.04 M HCL in Isopropanol were added. A plate reader was used at 570 nm to read the plate. Results represent mean ±S.D. Asterisk represents p < 0.01.