SM-164

Short Summary : Anticancer agent

Category : Apoptosis|IAP

Purity : 0.9864

CAS Number : 957135-43-2

Formula : C62H84N14O6

Molecular Weight :

Molecular Weight : 1121.42

SMILE : O=C([C@H]1N(C([C@@H](NC([C@H](C)NC)=O)CCCC2)=O)[C@]2([H])CC1)N[C@H](C3=CN(CCCCC4=CC=C(CCCCN5C=C([C@H](NC([C@@H]6CC[C@](CCCC[C@@H]7NC([C@@H](NC)C)=O)([H])N6C7=O)=O)C8=CC=CC=C8)N=N5)C=C4)N=N3)C9=CC=CC=C9

Solubility : >56.1mg/mL in DMSO

Storage : Store at -20°C

Description : SM-164 is a bivalent mimetic of Smac with Ki values of 0.31 nM, 1.1 nM and 0.56 nM for cIAP-1, cIAP-2 and XIAP, respectively 1.
SM-164 is developed as an anticancer agent. It plays its antitumor roles through inducing degradation of cellular inhibitor of apoptosis protein (cIAP)-1/2, antagonizing X-linked inhibitor of apoptosis protein (XIAP) and inducing TNFCdependent apoptosis in tumor cells. SM-164 is a bivalent mimetic containing two SM-122 analogues. It binds to cIAP-1 protein containing bothBIR2 and BIR3 domains, cIAP-2 BIR3 protein and XIAP protein containing both BIR2 and BIR3 domains with Ki values of 0.31 nM, 1.1 nM and 0.56 nM, respectively. In tumor cells, treatment of SM-164 significantly reduced cIAP-1 level to undetectable levels (1nM, 60min), effectively antagonized cellular XIAP and enhanced TNF secretion. In the MDA-MB-231 xenograft model, administration of SM-164 at dose of 5mg/kg markedly decreased cIAP-1 level within 1 hour and activated caspase-8, caspase-9 and caspase-3 at 3 hour 1.
References:1. Lu J, Bai L, Sun H, et al. SM-164: a novel, bivalent Smac mimetic that induces apoptosis and tumor regression by concurrent removal of the blockade of cIAP-1/2 and XIAP. Cancer research, 2008, 68(22): 9384-9393.

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