 |
数据来源 |
Clinical Cancer Research (2018 Nov). Figure 1. osimertinib (Abmole Bioscience) |
| 方法 |
Western Blot |
| 细胞系/动物模型 |
EGFR mutant NSCLC cell lines |
| 浓度 |
50 nM |
| 处理时间 |
72 h |
| 实验结果 |
In both sets of DTCs, other than BCL-2 in the PC9 osimertinib-DTCs, other anti-apoptotic BCL-2 family members were not upregulated, and, with the exception of NOXA in the HCC827 gefitinib-DTCs, expression of the key pro-apoptotic BCL-2 family members BIM and NOXA was not markedly diminished. |
 |
数据来源 |
Nat Med (2015). Figure 1. AZD9291 |
| 方法 |
digital PCR (ddPCR) assay |
| 细胞系/动物模型 |
Ba/F3 cells |
| 浓度 |
1.0 μM |
| 处理时间 |
72 h |
| 实验结果 |
Although a more comprehensive analysis of plasma and biopsy tissue collected after resistance develops will be needed to provide greater clarity on C797S mutation incidence, the emergence of this mutation in a marked proportion of AZD9291-resistant patients suggests that development of targeted therapies with the ability to overcome the C797S mutation is warranted. |
实验参考
| 体外实验* |
| 细胞系 |
PC-9, H1975, LOVO, H1650 and H3255 lines |
| 方法 |
In vitro EGFR phosphorylation assays Cells were treated for 2 h with a dose-response of each drug. Wild-type cells were stimulated for 10 minutes with 25 ng/ml of EGF before lysis. Level of EGFR phosphorylation was quantified in cell extracts using a modified R&D Systems DuoSet Human phospho-EGFR ELISA (36). |
| 浓度 |
0-1000nM |
| 处理时间 |
2h |
*上述方法来自公开文献,仅供相同目的实验参考。如实验目的、材料、方法不同,请参考其他文献。
| 体内实验* |
| 动物模型 |
PC-9 and H1975 cells subcutaneous xenograft models |
| 配制 |
not mentioned |
| 剂量 |
5 mg/kg/day QD |
| 给药处理 |
oral |
*上述方法来自公开文献,仅供相同目的实验参考。如实验目的、材料、方法不同,请参考其他文献。
化学性质
| 分子量 |
499.61 |
| 分子式 |
C28H33N7O2 |
| CAS号 |
1421373-65-0 |
| 溶解性(25°C) |
DMSO 90 mg/mL (Need warming and ultrasonic) |
| 储存条件 |
粉末型式 -20°C 3年;4°C 2年 溶于溶剂 -80°C 6个月;-20°C 1个月 |
| 运输方式 |
冰袋运输,根据产品的不同,可能会有相应调整。 |
储备液配制
*下述溶液配置方法仅为基于分子量计算出的理论值。不同产品在配置溶液前,需考虑其在不同溶剂中的溶解度限制。
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
| 1 mM |
2.0016 mL |
10.0078 mL |
20.0156 mL |
| 5 mM |
0.4003 mL |
2.0016 mL |
4.0031 mL |
| 10 mM |
0.2002 mL |
1.0008 mL |
2.0016 mL |
不同实验动物依据体表面积的等效剂量转换表(参考来源于公开文献)
| |
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。
参考文献
[1] Xiao-E Yan, et al. Structural Basis of AZD9291 Selectivity for EGFR T790M
[2] Alessandro Leonetti, et al. Resistance mechanisms to osimertinib in EGFR-mutated non-small cell lung cancer
[3] Kenneth S Thress, et al. Acquired EGFR C797S mutation mediates resistance to AZD9291 in non-small cell lung cancer harboring EGFR T790M
[4] Pasi A Jnne, et al. AZD9291 in EGFR inhibitor-resistant non-small-cell lung cancer
[5] Darren A E Cross, et al. AZD9291, an irreversible EGFR TKI, overcomes T790M-mediated resistance to EGFR inhibitors in lung cancer