Siramesine (Lu 28-179) hydrochloride 是一种有效的 sigma-2 受体激动剂。 Siramesine hydrochloride 对 sigma-2 受体具有亚纳摩尔亲和力 (IC50=0.12 nM)，对 sigma-2 受体的选择性是 sigma-1 受体的 140 倍 (IC50=17 nM)。盐酸西拉美新通过破坏线粒体而不是溶酶体触发细胞死亡。抗癌活性。
货号:ajcx11326
CAS:224177-60-0
分子式:C30H32ClFN2O
分子量：491.04
溶解度:>49.1mg/mL in DMSO
纯度：98%
存储：Store at -20°C
库存：现货

Background:

Siramesine hydrochloride (Lu 28-179 hydrochloride) is a selective sigma-2 receptor agonist, which has been shown to trigger cell death of cancer cells and to exhibit a potent anticancer activity in vivo. IC50 value:Target: sigma-2 receptor; lysosome-destabilizing agentsiramesine can induce rapid cell death in a number of cell lines at concentrations above 20 μM. In HaCaT cells, cell death was accompanied by caspase activation, rapid loss of mitochondrial membrane potential (MMP), cytochrome c release, cardiolipin peroxidation and typical apoptotic morphology, whereas in U-87MG cells most apoptotic hallmarks were not notable, although MMP was rapidly lost [1]. Siramesine, a sigma-2 receptor agonist originally developed as an anti-depressant, can induce cell death in transformed cells through a mechanism involving lysosomal destabilization [2].in vivo: SA4503 or siramesine given jointly with MEM (as well as with AMA) decreased the immobility time in rats. The effect of SA4503 and AMA co-administration was antagonized by progesterone, a sigma1 receptor antagonistic neurosteroid. Combined treatment with siramesine and AMA was modified by neither progesterone nor BD1047 (a novel sigma antagonist with preferential affinity for sigma1 sites) [3]

参考文献:
[1]. Cesen MH, et al. Siramesine triggers cell death through destabilisation of mitochondria, but not lysosomes. Cell Death Dis. 2013 Oct 3;4:e818.
[2]. Spirkoski J, et al. Mast cell apoptosis induced by siramesine, a sigma-2 receptor agonist. Biochem Pharmacol. 2012 Dec 15;84(12):1671-80.
[3]. Skuza G, et al. The synergistic effect of selective sigma receptor agonists and uncompetitive NMDA receptor antagonists in the forced swim test in rats. J Physiol Pharmacol. 2006 Jun;57(2):217-29.