3CAI is a potential inhibitor of AKT. Based on these screening data, the effect of 3CAI on the kinase activities of AKT1, MEK1, JNK1, ERK1 and TOPK is tested using 体外研究 kinase assays. The results show that 3CAI (1 μM) suppresses only AKT1 kinase activity and the other kinases tested are not affected by 3CAI. 3CAI is a much more potent AKT1 inhibitor than PI3K (60% inhibition at 1 vs 10 μM, respectively). 3CAI substantially suppresses AKT1 activity as well as AKT2 activity in a dose dependent manner. 3CAI inhibits down-stream targets of AKT and induces apoptosis. AKT-mediated phosphorlyation site of mTOR (Ser2448) and GSK3β (Ser9) are substantially decreased by 3CAI in a time-dependent manner. Furthermore, pro-apoptotic marker proteins p53 and p21 are also upregulated by 3CAI after 12 or 24 h of treatment. HCT116 and HT29 colon cancer cells are seeded on 6 cm dishes in 1% FBS/McCoys 5A (HCT116) with 3CAI (4 μM), I3C or the AKT inhibitor and then incubated for 4 days. Results show that the number of apoptotic cells is significantly increased by 3CAI in HCT116 and HT29 colon cancer cells compared with untreated control cells.
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.