Activation of JNK by TPA promotes apoptosis via PKC pathway in gastric cancer cells

Figure 3 Effect of TPA on transcriptional activity of activator protein-1. Cells were treated with various concentrations of TPA indicated. Various expression vectors were transfected into cells as described in materials and methods. Transcrip-tional activity was measured by the method of transient trans-fection and CAT assay. Data shown represent mean of dupli-cate experiments (± SE).