Fig. 3From: Effect of the molecular targeted drug, erlotinib, against endometrial cancer expressing high levels of epidermal growth factor receptorPhosphorylation of ERK treated EGF in EC cell lines. EC cells were incubated with epithelial growth factor (EGF) (1–1000 pg/mL), and cells were harvested at the 10 min for western blotting. Each sample was confirmed with either anti-phospho-ERK or anti-total-ERKBack to article page