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A Pentacyclic Aurora Kinase Inhibitor (AKI-001) with High in Vivo Potency and Oral Bioavailability.
- Source :
-
Journal of Medicinal Chemistry . Jul2008, Vol. 51 Issue 15, p4465-4475. 11p. - Publication Year :
- 2008
-
Abstract
- Aurora kinase inhibitors have attracted a great deal of interest as a new class of antimitotic agents. We report a novel class of Aurora inhibitors based on a pentacyclic scaffold. A prototype pentacyclic inhibitor 32(AKI-001) derived from two early lead structures improves upon the best properties of each parent and compares favorably to a previously reported Aurora inhibitor, 39(VX-680). The inhibitor exhibits low nanomolar potency against both Aurora A and Aurora B enzymes, excellent cellular potency (IC 50< 100 nM), and good oral bioavailability. Phenotypic cellular assays show that both Aurora A and Aurora B are inhibited at inhibitor concentrations sufficient to block proliferation. Importantly, the cellular activity translates to potent inhibition of tumor growth in vivo. An oral dose of 5 mg/kg QD is well tolerated and results in near stasis (92% TGI) in an HCT116 mouse xenograft model. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222623
- Volume :
- 51
- Issue :
- 15
- Database :
- Academic Search Index
- Journal :
- Journal of Medicinal Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 33957251
- Full Text :
- https://doi.org/10.1021/jm800052b