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Dinaciclib is a potent cyclin-dependent kinase (CDK) inhibitor with IC50s for CDK2, CDK5, CDK1 and CDK9 at 1 nM, 1 nM, 3 nM, and 4 nM, respectively. [1] It is in phase I or II clinical trials for various cancers.

Dinaciclib interacts with the acetyl-lysine recognition site of bromodomains. [2] Inhibition of CDK 1 suppresses Rb phosphorylation, leading to cell cycle arrest and apoptosis. [3]

Dinaciclib is active against a broad spectrum of human tumor cell lines in vitro and in vivo. It has great potential to improve cancer chemotherapy.

References:

[1]Parry D., et al. (2010). Dinaciclib (SCH 727965), a Novel and Potent Cyclin-Dependent Kinase Inhibitor. Mol Cancer Ther (9): 2344- 2353.

[2]Martin, M. P., et al. (2013). Cyclin-dependent kinase inhibitor dinaciclib interacts with the acetyl-lysine recognition site of bromodomains. ACS Chemical Biology 8 (11): 2360–5.

[3]Payton M., et al. (2006). Discovery and Evaluation of Dual CDK1 and CDK2 Inhibitors. Cancer Res 66: 4299-4308.

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