生物活性
Wortmannin (KY 12420) 是一种PI3K抑制剂,IC50为3 nM,抑制自噬体的形成,也有效抑制DNA-PK/ATM,IC50分别为16 nM和150 nM。钙或肽底物不影响Wortmannin对MLCK的抑制,但高浓度的ATP会减弱此种抑制。Wortmannin直接与MLCK催化结构域相互作用,导致不可逆转的酶活性减弱。Wortmannin对cAMP依赖蛋白激酶,cGMP依赖的蛋白激酶,钙调蛋白依赖激酶II,和蛋白激酶C均无抑制作用。
化学数据
分子量 | 428.43 |
分子式 | C23H24O8 |
CAS号 | 19545-26-7 |
纯度 | 99.87% |
溶解性(25°C) | DMSO ≥ 60 mg/mL |
储存和运输条件 | 固体粉末: -20°C 冷藏长期储存 常温运输及临时存放 |
实验操作 来自于公开的文献,仅供相同实验参考(如实验材料、目的不同,请参考其他文献)
细胞实验 |
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细胞系 | Human pancreatic adenocarcinoma cell lines PK1 and PK8 |
方法 | Drug Treatments. For flow cytometric analysis, cells were treated with the drug vehicle (≤1% DMSO) or 20 μM gemcitabine (2′,2′-diflurodeoxycytidine; Eli Lily & Co., Indianapolis, IN) for 48 h or with the same concentration of gemcitabine for the same duration followed by wortmannin (50–400 nM) or LY294002 (15–120 μM) for 4 h in the continuous presence of gemcitabine. The concentration and duration of gemcitabine treatment were chosen based on preliminary studies examining its effects on cell cycle inhibition and induction of apoptosis. For Western blotting, cells were treated with similar concentrations of wortmannin or LY294002 alone for 4 h or with gemcitabine (20 and 40μ M) alone for 48 h before harvest. Wortmannin and LY294002 were purchased from Biomol (Philadelphia, PA). All compounds were dissolved in DMSO at a stock concentration of 10 mM, stored at –20°C, and added to cell cultures at a final concentration of ≤1% DMSO, with appropriate solvent additions to control cultures. All experiments were performed in triplicate. |
浓度 | 50–400 nM |
处理时间 | 48 h |
动物实验 |
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动物模型 | mice bearing Orthotopic Model |
配制 | dissolved at 0.4 mg/ml in DMSO, and diluted with 0.9% NaCl before use. |
剂量 | single bolus injections of 0.7 mg/kg |
给药处理 | via the tail vein |
不同实验动物依据体表面积的等效剂量转换表(数据来源于FDA指南)
| 小鼠 | 大鼠 | 兔 | 豚鼠 | 仓鼠 | 狗 |
重量 (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
体表面积 (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km系数 | 3 | 6 | 12 | 8 | 5 | 20 |
动物 A (mg/kg) = 动物 B (mg/kg) × | 动物 B的Km系数 |
动物 A的Km系数 |
例如,依据体表面积折算法,将化合物用于小鼠的剂量20 mg/kg 换算成大鼠的剂量,需要将20 mg/kg 乘以小鼠的Km系数(3),再除以大鼠的Km系数(6),得到化合物用于大鼠的等效剂量为10 mg/kg。
储备液配制
以下数据基于半岛bd体育手机客户端
分子量,对于特殊半岛bd体育手机客户端
,请参照COA中的储备液配制条件和说明进行操作。
Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
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1 mM | 2.3341 mL | 11.6705 mL | 23.341 mL |
5 mM | 0.4668 mL | 2.3341 mL | 4.6682 mL |
10 mM | 0.2334 mL | 1.1671 mL | 2.3341 mL |