U-73343 英文名称: U-73343 | ||||||||||||||||||||||||||||||||||||||||||||
型号:null 产品货号: ICA1022-0005MG | ||||||||||||||||||||||||||||||||||||||||||||
价格:请致电:010-57128832,18610462672 | ||||||||||||||||||||||||||||||||||||||||||||
品牌: gene operation | ||||||||||||||||||||||||||||||||||||||||||||
ICA1022- U-73343 U-73343,≥98% 【英文同义名】:U73343, U 73343 【中文同义名】: 订购信息:(原装进口,常备现货)
产品描述 U73343是U73122的无活性结构类似物,可用作U73122活性研究的阴性对照。 U73122, 一种膜渗透性氨基甾醇,是***脂酶C(PLC)的选择性抑制剂。它抑制激动剂刺激引起的人血小板或嗜中性粒细胞中PLC活化(IC50 = 1.0-2.1 μM)。 该抑制效应会伴随IP3生成的减少,并随后的胞质内Ca2+水平也降低[1-2]。在SK-N-SH神经母细胞瘤细胞内,U73122抑制激动剂诱导的细胞表面毒蕈碱受体表达下调(IC50 = 4.1 μM) 。它是研究信号转导中受体介导的PI周转的一种非常有用的工具[3]。U73122还可以强效抑制人多形核嗜中性粒细胞粘附到生理表面(IC50 < 50 nM),以及抑制粘附分子依赖性的颗粒胞吐作用和反应性氧迸发[4]。U73122体内外以剂量依赖性的方式抑制5-脂氧合酶(5-LO)活性,对重组蛋白5-LO,匀浆PMLN和ionomycin刺激活化的PMNL完整细胞的IC50约为30 nM,2.4 μM 和1.8 μM[5]。大小鼠和狗的急/慢性炎症模型中U73122 表现出显著的抗炎症活性[6]。
靶点
化学特性
储存液配制
结构式 使用浓度(仅作参考)U73343的具体使用浓度请参考相关文献,并根据自身实验条件(如实验目的,细胞种类,培养特性等)进行摸索和优化。
参考文献 [1]Smith RJ, et al. Receptor-coupled signal transduction in human polymorphonuclear neutrophils: effects of a novel inhibitor of phospholipase C-dependent processes on cell responsiveness. J Phar macol Exp Ther. 253(2):688-97 (1990).[2] Bleasdale JE, et al. Selective inhibition of receptor-coupled phospholipase C-dependent pro cesses in human platelets and polymorphonuclear neutrophils. J Pharmacol Exp Ther. 255(2):756- 68 (1990).[3] Thompson AK, et al. The aminosteroid U-73122 inhibits muscarinic receptor sequestration and phosphoinositide hydrolysis in SK-N-SH neuroblastoma cells. A role for Gp in receptor compart- mentation. J Biol Chem. 266(35):23856-62 (1991).[4] Smith RJ, et al. U-73122: a potent inhibitor of human polymorphonuclear neutrophil adhesionon biological surfaces and adhesion-related effector functions. J Pharmacol Exp Ther. 278(1):320-9 (1996). [5] Feisst C, et al. The aminosteroid phospholipase C antagonist U-73122 (1-[6-[[17-beta-3-me thoxyestra-1,3,5(10)-trien-17-yl]amino]hexyl]-1H-pyrrole-2,5-dione) potently inhibits human 5- lipoxygenase in vivo and in vitro. Mol Pharmacol. 67(5):1751-7 (2005). [6] Hou C, et al. In vivo activity of a phospholipase C inhibitor, 1-(6-((17beta-3-methoxyestra- 1,3,5(10)-trien-17-yl)amino)hexyl)-1H-pyrrole-2,5-dione (U73122), in acute and chronic inflame- matory reactions. J Pharmacol Exp Ther. 309(2):697-704 (2004). |