生物活性
BEZ235 (NVP-BEZ235, Dactolisib) ATP竞争性的抑制PI3K和mTOR,对p110α/γ/δ/β和mTOR(p70S6K)均有抑制作用,IC50分别为4 nM/5 nM/7 nM/75 nM/6 nM,对ATR也有抑制作用,IC50为21 nM;但对Akt和PDK1抑制作用微弱。BEZ235是ATP竞争性的PI3K和mTOR抑制剂 ,作用于p110α, p110γ, p110δ 和 p110β的IC50分别为4, 5, 7和75 nM。BEZ235 (NVP-BEZ235)也是mTORC1/2 催化剂的抑制剂。BEZ235明显降低mTOR激活激酶p70S6K的磷酸化水平。
化学数据
分子量 | 469.55 |
分子式 | C30H23N5O |
CAS号 | 915019-65-7 |
纯度 | 99.62% |
溶解性(25°C) | DMSO 3 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 | MKN45, BT474, SNU216 and NCI-N87 cell lines |
方法 | Cell viability assay Cells were seeded at a density of 2000 cells per well in a 96-well plate and incubated overnight in complete medium. Cells were treated with either trastuzumab, BEZ235, Everolimus, AZD6244 alone, or trastuzumab combined with BEZ235 or Everolimus or AZD6244. After 72 h of incubation, cell viability was determined using the MTS tetrazolium substrate (CellTiter 96 Aqueous One Solution Cell Proliferation Assay, Promega, Madison, WI, USA) following the manufacturer’s instructions. The absorbance was measured at 490 nm using a spectrophotometer. All experiments were repeated three times with at least triplicate readings for each concentration. |
浓度 | 0~800nM |
处理时间 | 72h |
动物实验 |
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动物模型 | Xenograft models in non-obese diabetic/severe combined immunodeficiency (NOD/SCID) mice |
配制 | BEZ235 was formulated in 0.9 % NaCl as a homogeneous suspension (9 mg/mL) and stored at 4 °C until further use in the in vivo experiments. |
剂量 | 45 mg/kg body weight, daily |
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 |
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1 mM | 2.1297 mL | 10.6485 mL | 21.297 mL |
5 mM | 0.4259 mL | 2.1297 mL | 4.2594 mL |
10 mM | 0.213 mL | 1.0648 mL | 2.1297 mL |