化学性质：                                                                                                             

产品描述：                                                                                                            

PHA-848125 is a potent and ATP-competitive Cdk2/cyclin A inhibitor with an IC50 value of 45 nM. PHA-848125 also inhibited Cdk7/cyclin H, Cdk4/cyclin D1, Cdk5/p35, Cdk2/cyclin E and Cdk1/cyclin B with less potency (IC50= 0.15 μM, 0.16 μM, 0.265 μM, 0.363 μM and 0.398 μM, respectively). [1]

CDK (cyclin-dependent kinase) is a group of serine/threonine kinases. It is activated by binding to cyclin and participates in the regulation of cell cycle.

In cells treated with PHA-848125, hyperphosphorylated form of CDK substrate—retinoblastoma protein (pRb) was reduced and hypophosporylated from of pRb was accumulated. It further indicated inhibition effect of PHA-848125 on CDK2 activity. [1]

In human ovarian A2780 xenogaft mouse model, 20, 30 and 40mg/kg of PHA-848125 were each administrated orally twice a day for 10 days. PHA-848125 inhibited A2780 tumor growth up to 91% at 40 mg/kg dose. [1]

特别提醒：