PHA-767491 is a potent, ATP-competitive dual cdk7/cdk9 inhibitor with IC50 of 10 and 34 nM for cdk7 and CDK9, respectively. PHA-767491 blocks the activity of mitogen-activated protein kinase-activated protein kinase-2 (MK-2) with anIC50 of 171 nM. PHA-767491 inhibits DNA synthesis and replication and influences the phosphorylation of the replicative DNA helicase at cdk7-dependent phosphorylation sites. PHA-767491 does not induce a sustained DNA damage response. PHA-767491 suppresses the proliferation of cell in a variety of human cell lines with IC50 values ranging from 0.86 to 5.87 μM. PHA-767491 induces apoptosis in a p53-independent manner in vivo. Treatment with PHA-76749 leads to apoptotic cell death in multiple cancer cell types and tumor growth inhibition in preclinical cancer models.
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
|Solubility||DMSO 20 mg/mL|
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LDC4297 is a novel CDK7 inhibitor (IC50=0.13±0.06 nM for CDK7 versus IC50s between 10 nM and 10,000 nM for all other analyzed CDKs).
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