AMG 925 is a potent and orally bioavailable dual inhibitor of CDK4 and FLT3, including many FLT3 mutants reported to date. It inhibits the proliferation of a panel of human tumor cell lines including Colo205 (Rb(+)) and U937 (FLT3(WT)) and induced cell death in MOLM13 (FLT3(ITD)) and even in MOLM13 (FLT3(ITD, D835Y)), which exhibits resistance to a number of FLT3 inhibitors currently under clinical development. At well-tolerated doses, AMG 925 leads to significant growth inhibition of MOLM13 xenografts in nude mice, and the activity correlates with inhibition of STAT5 and Rb phosphorylation.
1. Li C, Liu L, Liang L, Xia Z, Li Z, Wang X, McGee LR, Newhall K, Sinclair A, Kamb A, Wickramasinghe D, Dai K., AMG 925 is a dual FLT3/CDK4 inhibitor with the potential to overcome FLT3 inhibitor resistance in acute myeloid leukemia., Mol Cancer Ther. 2015 Feb;14(2):375-83. doi: 10.1158/1535-7163.MCT-14-0388. Epub 2014 Dec 8.
2. Li Z, Wang X, Eksterowicz J, Gribble MW Jr, Alba GQ, Ayres M, Carlson TJ etc, Discovery of AMG 925, a FLT3 and CDK4 dual kinase inhibitor with preferential affinity for the activated state of FLT3. J Med Chem. 2014 Apr 24;57(8):3430-49. doi: 10.1021/jm500118j. Epub 2014 Apr 2.
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