Lysates from cells or xenografts were prepared in RIPA buffer supplemented with protease/phosphatase inhibitor cocktail (Roche Diagnostics, Indianapolis, IN). Proteins were analyzed by immunoblotting as previously described.58 (link) The antibodies for ALK, β-tubulin, phospho-ALKY1604, HK1, HK2, PFK1, GAPDH, PKM2, LDHA, PGAM1, Enolase-1, AKT, phospho-AKTS473 and phospho-4E-BP1T37/46 were purchased from Cell Signaling. The antibodies for GLUT1 and GLUT3 were obtained from Abcam (Cambridge, MA). The HIF1α antibody was from BD Biosciences (San Jose, CA).