PD98059 IC50 required for targeting prostate cancer (LNCaP) cells. Inhibitory Concentration 50 (IC50) of PD98059 on LNCaP cells for 72 hours with different concentrations 10 μM, 20 μM, 30 μM, and 40 μM. Viability of LNCaP cells were assessed by MTT assay. For each concentration of PD98059, viabilities are given as percentages. Gnuplot software was used to calculate IC50 values. For LNCaP cells, IC50 value of PD98059 is 4.14 μM.