生物活性
Hypothemycin, one of the highly oxygenated analogues in the group of 14-membered resorcylic acid lactones (RAL),has minor antifungal and cytotoxic activity and exhibits anin vitroanti-malarial activity with an IC50of 2.2 μg/mL.Hypothemycin is also reported to selectively and irreversibly inhibit protein kinases that contain a conserved cysteine residue (Cys166) that is located within the ATP-binding domain.Though this group accounts for less then 10% of all identified kinases, there are several targets implicated in aberrant cellular proliferation such as ERKs, MEK, FMS-like tyrosine kinase protein (FLT), and platelet-derived growth factor receptors (PDGFR).In cell culture, hypothemycin displays potent cytotoxicity against cancer cell lines that are dependent on certain activating kinase mutations. Additionally, hypothemycin demonstrates significant tumor growth inhibition in at least three separate murine xenograft models.Hypothemycin also inhibits the production of several cytokines such as IL2, IL6, IFNγ, and TNFα.
化学数据
分子量 | 378.37 |
分子式 | C19H22O8 |
CAS号 | 76958-67-3 |
纯度 | >98% |
溶解性(25°C) | DMSO: soluble |
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 |
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 | 2.6429 mL | 13.2146 mL | 26.4292 mL |
5 mM | 0.5286 mL | 2.6429 mL | 5.2858 mL |
10 mM | 0.2643 mL | 1.3215 mL | 2.6429 mL |