Figure 3. Time courses for UVA-induced MAPK activation and AP-1 activity.

Cells were mock-irradiated or irradiated with 10 J/cm² UVA and harvested at the indicated time points. Western blot analysis was performed and the representative data of three independent experiments were shown. Figure showed the expression of (A) JNK; (B) p38; (C) Jun; (D) Fos.