OSI-930是一种有效的Kit， KDR和CSF-1R抑制剂，IC50分别为80 nM， 9 nM和15 nM，对Flt-1， c-Raf和Lck具有适度的抑制活性，对PDGFRα/β， Flt-3和Abl抑制活性较弱。在体外, OSI-930有效抑制重组受体酪氨酸激酶活性，作用于Kit, KDR, Flt, CSF-1R, c-Raf 和Lck时，IC50 分别为80 nM, 9 nM, 8 nM, 15 nM, 41 nM 和22 nM。 OSI-930 作用于HMC-1 细胞系，抑制细胞增殖，IC50为14 nM，而作用于不表达组成型激活的突变受体酪氨酸激酶的COLO-205细胞，不会显著抑制生长。而且, OSI-930 也诱导 HMC-1细胞凋亡，EC50为 34 nM。

>98%

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

Ethanol ：3 mg/mL (6.76 mM)

DMSO ：82 mg/mL (184.9 mM)

FLT1 ,KDR ,CSF-1R ,LCK ,C-Raf

OSI-930 inhibits the cell proliferation in the HMC-1 cell line with IC50 of 14 nM without significant effect on growth of the COLO-205 cell line that does not express a constitutively active mutant receptor tyrosine kinase. Moreover, OSI-930 also induces apoptosis in HMC-1 cell line with EC50 of 34 nM. A recent study shows that OSI-930 inactivates purified, recombinant cytochrome P450 (P450) 3A4 with a Ki of 24 μM in a time- and concentration-dependent mode.

OSI-930, administrated at the maximally efficacious dose of 200 mg/kg by oral gavage, exhibits potent antitumor activity in a broad range of preclinical xenograft models including HMC-1, NCI-SNU-5, COLO-205 and U251 xenograft models.

OSI-930: a novel selective inhibitor of Kit and kinase insert domain receptor tyrosine kinases with antitumor activity in mouse xenograft models.
Garton AJ,et al. Cancer Res. 2006 Jan 15;66(2):1015-24. PMID:

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