Molecular Formula | C22H29N5O9P2
|
Molar Mass | 569.441282 |
Solubility | Soluble in DMSO (100 mg/ml at 25 °C), water (100 mg/ml at 25 °C), and ethanol (<1 m |
Storage Condition | Inert atmosphere,Store in freezer, under -20°C |
Use | An ATP-competitive inhibitor. |
In vitro study | Motesanib Diphosphate has a broad spectrum of activity in the human VEGFR family, with a selectivity of> 1000 for EGFR, Src, and p38 kinases. Consistent with selectivity, Motesanib Diphosphate significantly inhibited VEGF-induced HUVECs cell proliferation with an IC50 of 10 nM, whereas it had no effect on bFGF-induced proliferation with an IC50 of> 3,000 nM. Motesanib Diphosphate also effectively inhibited PDGF-induced proliferation and SCF-induced c-kit phosphorylation, with IC50 of 207 nM and 37 nM, respectively, but had no effect on EGFR phosphorylation and A431 cell activity induced by EGF. Although it does not have antiproliferative activity on HUVECs, Motesanib Diphosphate sensitizes cells to radioactivity. |
In vivo study | Motesanib Diphosphate at a dose of 100 mg/kg significantly inhibited vascular permeability induced by VEGF in a time-dependent manner. Motesanib Diphosphate, administered orally twice or once a day in a rat corneal model, effectively inhibited VEGF-induced angiogenesis in a dose-dependent manner, with ED50 of 2.1 mg/kg and 4.9 mg/kg, respectively. Motesanib Diphosphate acts on tumor cells in a dose-dependent manner by selectively targeting angiogenesis to decline A431 xenografts. Treatment of MCF-7, MDA-MB-231, or Cal-51 xenograft tumors with Motesanib Diphosphate significantly reduced tumor growth and vascular density in a dose-dependent manner, while the effects were significantly enhanced when combined with Docetaxel or Tamoxifen. Motesanib Diphosphate and radiation together act on head and neck squamous cell carcinoma (HNSCC) xenograft models with significant anticancer activity. |