欧夹竹桃苷  99.92%(HPLC),分析标准品

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包装规格:20mg in glass bottle
产品简介:一种 Na+/K+-ATPase 的抑制剂,IC50值为0.62 μM。Oleandrin 可诱导凋亡并减少人胶质瘤细胞的体外迁移。
溶解性:DMSO :100 mg/mL (173.39 mM; Need ultrasonic)
储备液保存:-80°C, 2 years -20°C, 1 year
体内实验:1、请依序添加每种溶剂: 10% DMSO→ 40% PEG300→5% Tween-80 →45% saline Solubility: ≥ 2.5 mg/mL (4.33 mM); Clear solution 此方案可获得 ≥ 2.5 mg/mL (4.33 mM,饱和度未知) 的澄清溶液。 以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。 2、请依序添加每种溶剂: 10% DMSO→90% (20% SBE-β-CD in saline) Solubility: ≥ 2.5 mg/mL (4.33 mM); Clear solution 此方案可获得 ≥ 2.5 mg/mL (4.33 mM,饱和度未知) 的澄清溶液。 以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。 3、请依序添加每种溶剂: 10% DMSO→90% corn oil Solubility: ≥ 2.5 mg/mL (4.33 mM); Clear solution 此方案可获得 ≥ 2.5 mg/mL (4.33 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。 以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。 <1mg/ml表示微溶或不溶。 普西唐提供的所有化合物浓度为内部测试所得,实际溶液度可能与公布值有所偏差,属于正常的批间细微差异现象。 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;⼀旦配成溶液,请分装保存,避免反复冻融造成的产品失效。
靶点:IC50: 620 nM (Na+, K+-ATPase)
体外研究:Study of Na,K-ATPase inhibition shows an IC50 (nM) of 620 for Oleandrin. The inhibition of Na,K-ATPase by Oleandrin confirms that it likely exert its toxic effect through inhibition of sodium pump activity. When treated with a series of concentrations of Oleandrin (0.2-25 nM), the undifferentiated CaCO-2 cells are sensitive as evidenced by an IC50 of 8.25 nM. In contrast, a maximum growth inhibition of only 20% is reached in differentiated CaCO-2 cells even though they are treated with Oleandrin concentrations as high as 25 nM.
体内研究:The effect of Oleandrin is investigated on glioma growth in vivo. To this aim, SCID or C57BL/6 mice are transplanted, respectively, with human U87MG (5×104), U251, GBM19 (5×105), or murine (syngeneic) GL261 (7.5×104) cells into the right striatum and, after 10 d, treated daily with intraperitoneal Oleandrin for an additional 7 d. Oleandrin significantly reduces tumor sizes in human and murine glioma cell models in vivo in a dose-dependent way. High concentrations of Oleandrin (3 mg/kg) are fatal in both models, as expected from the known lethal dose for rodents. Doses of Oleandrin below the lethal dose (0.3 mg/kg) significantly increase the survival time from 32.6±1.4 d to 53.8±9.6 d in mice injected with U87MG cells (n=5-11; p<0.01, log-rank test) and from 23.37±1.2 d to 34.38±3.3 d (n=5-11; p<0.01, log rank test) in mice injected with GL261 cells.
保存条件:2-8℃
注意事项:1、为了您的安全和健康,请穿实验服并戴一次性手套操作。 2、以上信息仅做参考交流之用。