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Ispinesib (SB-715992)
Cat No.
CEI-1380
Product Overview
Ispinesib (SB-715992) is a selective inhibitor of KSP with IC50 value of 0.5 nM. Kinesin spindle protein (KSP) is a kinesin motor protein and plays an important role in the formation of a bipolar mitotic spindle and cell cycle progression through mitosis. It has been shown that abnormal expression of KSP is correlated with a variety of human cancers and its inhibitors may be a promising anticancer agent. Ispinesib (SB-715992) is a potent KSP inhibitor and often combines with chemotherapy drugs to tumor treatment. When tested with a panel of 23 tumor cell lines, Ispinesib (SB-715992) treatment showed high activity to inhibit KSP in most of the cell lines while only Rh18 having an IC50 value greater than 1 μM (median IC50=4.1 nM, maximum IC50=0.5 nM) by using PPTP method. In a panel of 53 breast cell lines, Ispinesib (SB-715992) exhibits broad antiproliferative activity and up-regulated the expression of both mitotic and apoptotic markers in MDA-MB-468 cell line. When tested with PC-3 cells, Ispinesib (SB-715992) treatment inhibits cell proliferation, inducs cell apoptosis and up-regulated the expressions of genes that related to the control of cell proliferation, cell cycle, cell signaling pathways and apoptosis. In mouse model with 26 tumor cells subcutaneous xenograft, administration of Ispinesib (SB-715992) inducs markedly tumor growth delay with the percent of 88% (23/26) and maintained completed response (CR) in the rhaboid tumor, Wilms tumor and Ewing sarcoma xenograft mouse model.
CAS No.
336113-53-2
Molecular Weight
517.06
Purity
0.9965
Storage
Store at -20°C
Targets
KSP
Molecular Formula
C30H33ClN4O2
Chemical Name
N-(3-aminopropyl)-N-[(1R)-1-(3-benzyl-7-chloro-4-oxoquinazolin-2-yl)-2-methylpropyl]-4-methylbenzamide
Solubility
Soluble in DMSO > 10 mM
Shipping Conditions
Evaluation sample solution: ship with blue ice. All other available size: ship with RT, or blue ice upon request
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