Figure 4From: Inhibition of insulin-like growth factor-1 receptor signaling enhances growth-inhibitory and proapoptotic effects of gefitinib (Iressa) in human breast cancer cellsEffect of treatment on Erk and Akt kinases phosphorylation and protein levels. Western blot analysis showing phosphorylation (P) (top) and protein (bottom) levels of Akt and p44/p42 Erk kinases in cells treated for 24 hours with AG1024 (AG), gefitinib (GE), or both.Back to article page