Fig. 2. FGF2-induced phosphorylation of p42/p44 MAPK. (A) Representative immunoblot of phospho-ERK from lens epithelial explants exposed to different concentrations of FGF2 for 2 hours at 37°C. Lens explants exposed to either no FGF2 (B,E), 5 ng/ml FGF2 (C,F) or 100 ng/ml FGF-2 (D,G) for 2 hours at 37°C, immunolabelled for phospho-ERK (B-D) or counterstained with Hoechst dye (E-G). Scale bar: 40 µm.