PF-03814735 is a novel, potent, orally bioavailable, reversible small-molecule Aurora kinase inhibitor with IC50 of 0.8, 5, 10 and 22 nM for Aurora 1, Aurora 2, Flt 1 and FAk, respectively. Aurora kinases are serine- threonine kinases that play essential roles in mitotic checkpoint control during mitosis. PF-03814735?possesses potential antineoplastic activity. Aurora kinase inhibitor PF-03814735 binds to and blocks Aurora kinases A and B, which may result in the prevention of cellular division and proliferation in tumor cells that overexpress these kinases. In intact cells, the preventive activity of PF-03814735 on the Aurora1 and Aurora2 kinases attenuates levels of phospho-Aurora1, phosphohistone H3, and phospho-Aurora2. PF-03814735 generates a block in cytokinesis, leading to prevention of cell proliferation and the formation of polyploid multinucleated cells. Although PF-03814735 generates significant prevention of several other protein kinases, the predominant biochemical effects in cellular assays are consistent with inhibition of Aurora kinases. Once-daily oral injection of PF-03814735 to mice bearing human xenograft tumors generates an attenuation in phosphohistone H3 in tumors at doses that are tolerable and that result in significant inhibition of tumor growth. The combination of PF-03814735 and docetaxel in xenograft mouse tumor models shows additive tumor growth inhibition. PF-03814735 is originally developed by Pfizer. The phase I clinical trials for the treatment of solid tumors has been completed.

>98%

Store at -20℃ for one year（Powder）；Store at 2-4℃ for two weeks；Store at -20℃ for six months after dissolution.

PF 03814735

Ethanol ：9.5 mg/mL (20 mM)

DMSO ：47.5 mg/mL (100 mM)

Aurora A,Aurora B,FLT1,FAK,TrkA

In intact cells, the inhibitory activity of PF-03814735 on the Aurora1 and Aurora2 kinases reduces levels of phospho-Aurora1 (Thr 232, a sensitive marker of Aurora1 activity, with IC50 ~ 20 nM), phosphohistone H3 (with IC50 ~ 50 nM), and phospho-Aurora2 (with IC50 ~150 nM). PF-03814735 produces a block in cytokinesis, resulting in inhibition of cell proliferation and the formation of polyploid multinucleated cells. A recent research indicates small cell lung cancer (SCLC) and, to a lesser extent, colon cancer lines are very sensitive to PF-03814735. The status of the Myc gene family and retinoblastoma pathway members significantly correlates with the efficacy of PF-03814735.

Once-daily oral dosing of ≥20 mg/kg of PF-03814735 for 10 days to mice bearing HCT-116 xenografts resulted in statistically significant and dose-dependent tumor growth inhibition of ≥50% relative to vehicle-treated mice. The inhibition is associated with a reduction in phosphorylated histone H3 levels. Significant single-agent antitumor efficacy is observed in five additional xenograft tumor models, including A2780 ovarian carcinoma, MDA-MB-231 breast carcinoma, colo-205 and SW620 colorectal carcinomas, and HL-60 acute promyelocytic leukemia. In vivo experiments with two SCLC xenograft models confirms the sensitivity of Myc gene-driven models to PF-03814735 and a possible schedule dependence of MYC/c-Myc-driven tumors.