MK-2206 (dihydrochloride)

MK-2206 dihydrochloride (MK-2206 (2HCl)) is an orally active, BBB-penetrated allosteric AKT inhibitor with IC₅₀s of 5 nM, 12 nM, and 65 nM for AKT1, AKT2, and AKT3, respectively. MK-2206 dihydrochloride induces autophagy^[1][2]. In Vitro:MK-2206 dihydrochloride (MK-2206 (2HCl)) (0-10 μM; 72 and 96 hours) inhibits the nasopharyngeal carcinoma (NPC) cell lines CNE-1, CNE-2, HONE-1, and SUNE-1 proliferation in dose- and time-dependent manner^[1].
MK-2206 dihydrochloride (0-10 μM; 24 and 48 hours) results in a dose-dependent increase in the percentage of cells in G0/G1 phase and a concomitant reduction of cell numbers in S phase in CNE-2 and HONE-1 cells^[2].
MK-2206 dihydrochloride (0-10 μM; 24 hours) attenuates phosphorylation levels of PRAS40 and S6 in a dose-dependent manner. MK-2206 does not effect phosphorylation of GSKα/β and AKT^[2].
MK-2206 dihydrochloride (0-10 μM; 24 hours) increases the appearance of LC3-II in CNE-2 cells dose-dependently. Microtubule-associated protein 1 LC3 is an essential autophagy protein^[2]. In Vivo:Both MK-2206 dihydrochloride (MK-2206 (2HCl)) doses (oral gavage; 480 mg/kg once a week and 240 mg/kg three times a week; for 2 weeks) can inhibit the growth of human CNE-2 xenografts in nude mice. No other obvious toxicity is observed in mice^[2].
MK-2206 dihydrochloride (orally; 120 mg/kg; alternate days; for 3 weeks) significantly inhibits tumor growth in 3-5 week old athymic nude mice with GEO colon carcinoma cells^[3].