Antibodies
PF-03814735
- 貨號 Cat. No.
- S2725
- 規格 Size
- 5~200mg
- 品牌 Brand
- Selleckchem
Description
PF-03814735
Catalog No.S2725
PF-03814735 is a novel, potent and reversible inhibitor of Aurora A/B with IC50of 0.8 nM/5 nM, is less potent to Flt3, FAK, TrkA, and minimally active to Met and FGFR1. Phase 1.
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Distributor Tel: +886-2-2827-1197jimmy@new.abscience.com.tw
Biological Activity
| Description | PF-03814735 is a novel, potent and reversible inhibitor of Aurora A/B with IC50of 0.8 nM/5 nM, is less potent to Flt3, FAK, TrkA, and minimally active to Met and FGFR1. Phase 1. | |||||
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| Targets | Aurora A | Aurora B | Flt1 | FAK | TrkA | |
| IC50 | 0.8 nM | 5 nM | 10 nM | 22 nM | 30 nM [1] | |
| In vitro | 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. [1] 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. [1] | |||||
| In vivo | 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. [1] 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. [1] | |||||
| Features | ||||||
Protocol(Only for Reference)
Kinase Assay: [1]
| Recombinant Kinase Assays | Aurora1 and Aurora2 proteins are produced as full-length His-tag recombinant proteins expressed in insect cells. For the Aurora2 kinase assay, phosphorylation of the substrate peptide by recombinant Aurora2 protein is assessed by a Z-LYTE assay at 3 to 300 μM ATP and various concentrations of PF-03814735 over 60 minutes, at a substrate peptide concentration of 2 μM (biotinylated LRRWSLG, ×4). Phosphorylation is linear over this time for all conditions. For the Aurora1 kinase assay, phosphorylation of the substrate peptide by recombinant Aurora1 protein is assessed by a scintillation proximity assay in a 96-well plate format in which the incorporation of 33P into the peptide substrate (biotinylated LRRWSLG, ×4) is measured by capturing the peptide on a streptavidin scintillation proximity assay bead. |
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Cell Assay: [1]
| Cell lines | HCT-116 cell |
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| Concentrations | 300 nM |
| Incubation Time | 4, 8, 12, 24, 48, or 72 hours |
| Method | Cell lines are grown in appropriate media and evaluated after 48 h of exposure to either PF-03814735 or vehicle, followed by cell number determination in a Coulter Counter. Proliferation (as measured by an increase in cell number) is expressed as a percent of untreated controls. To evaluate the PF-03814735 exposure time required for antiproliferative activity, HL-60 cell cultures are cultured in RPMI medium supplemented with 15% heat-inactivated fetal bovine serum and exposed to various PF-03814735 concentrations for 4, 8, 12, 24, and 48 hours, followed by a washout step and incubation with growth media without PF-03814735 for the remainder of the 72-h assay period. Continuous exposure to PF-03814735 for 72 hours is also evaluated. Cell counts are determined by a Coulter Counter. |
Animal Study: [1]
| Animal Models | HCT116 tumors are implanted s.c. on the right flank of nude mice. |
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| Dosages | 10, 20, 30 mg/kg |
| Administration | Administered orally |
| Solubility | 2% Cremophor EL, 2% N,N-dimethylacetamide, pH 5.0 30 mg/mL |
References
Clinical Trial Information( data from http://clinicaltrials.gov)
| NCT Number | Recruitment | Conditions | Sponsor /Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT00424632 | Completed | Solid Tumors | Pfizer | 2006-11 | Phase 1 |
Chemical Information
| Molecular Weight (MW) | 474.48 |
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| Formula | C23H25F3N6O2 |
| CAS No. | 942487-16-3 |
| Storage | 3 years -20℃Powder |
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| 6 months-80℃in DMSO | |
| Syonnyms | N/A |
| Solubility (25°C) * | In vitro | DMSO | 0.4 mg/mL (<1 mM) |
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| Water | <1 mg/mL (<1 mM) | ||
| Ethanol | <1 mg/mL (<1 mM) | ||
| In vivo | 2% Cremophor EL, 2% N,N-dimethylacetamide, pH 5.0 | 30 mg/mL | |
| * <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. | |||
| Chemical Name | Acetamide, N-[2-[(1S,4R)-6-[[4-(cyclobutylamino)-5-(trifluoromethyl)-2-pyrimidinyl]amino]-1,2,3,4-tetrahydronaphthalen-1,4-imin-9-yl]-2-oxoethyl]- |
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