Figure 3
The expression of ERK pathway after indicated UVB treatment.
(A) Cultured HaCaT keratinocytes were treated with high irradiance (HI) and low irradiance (LI) UVB (23 mJ/cm2) treatment. The protein extracts were analyzed with western blotting using antibodies against phosphorylated ERK (p-ERK), total ERK (t-ERK), and GAPDH. (B) Densitometric analyses of (A) n = 3. **Indicates p < 0.05.
