Figure 4.
Effect of various agents, including Wortmannin (shown by Wort. or W), a PKC specific inhibitor, on expres-sion of JNK protein. Cells were treated with Wortmannin for 2 hr, following by TPA induction for another 3 hr. Protein was detected by Western blot. Amount of protein used in each lane was indicated by staining with ponceau S. The intensity of each band was quantified by densitometer.