生物活性
澳洲茄边碱(Solamargine)是从传统中药龙葵中提取的生物碱苷,被报道对多种癌细胞有诱导凋亡的作用。
化学数据
| 分子量 | 868.06 |
| 分子式 | C45H73NO15 |
| CAS号 | 20311-51-7 |
| 纯度 | >98% |
| 溶解性(25°C) | 10 mM in DMSO |
| 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 |
|---|
| 细胞系 | H1650, H1975, A549, PC9 and H1299 cells |
| 方法 | Cell viability assay Cell viability was measured using the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Briefly, lung cancer cells were harvested and seeded in a 96-well microtiter plate followed by treating with solamargine (6 μM) for up to 48 hrs. Afterwards, MTT solution (20 μl, 5 g/l) was added to each well, and cells were incubated at 37°C for an additional 4 hrs. Finally, the 200-μl solvent dimethyl sul-foxide was added to each well for 10 min. The ELISA reader (Perkin Elmer, Victor X5, USA) was used to detect the Absorbance at 490 nm. Cell viability (%) was calculated as follows: (absorbance of test sample/ absorbance of control) 100%. |
| 浓度 | 6 μM |
| 处理时间 | 48 h |
| 动物实验 |
|---|
| 动物模型 | A549 cells xenograft in nude mice |
| 配制 | saline |
| 剂量 | 4 and 8mg/kg for 30 days |
| 给药处理 | oral gavage |
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
以下数据基于产品分子量,对于特殊产品,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 |
|---|
| 1 mM | 1.152 mL | 5.76 mL | 11.5199 mL |
| 5 mM | 0.2304 mL | 1.152 mL | 2.304 mL |
| 10 mM | 0.1152 mL | 0.576 mL | 1.152 mL |