Western Blot analysis of starved H2-c-fosLTR/Egfrwt OS cells, pre-treated with DMSO (1:1000), Afatinib (5µM), GSK2233470 (10µM), Rapamycin (10nM) or U0126 (10µM) for 30 minutes and stimulated with EGF (50ng/ml) as indicated 