生物活性
Quizartinib (AC220)是一种二代FLT3抑制剂，作用于Flt3(ITD/WT)，IC50为1.1 nM/4.2 nM，作用于Flt3比作用于KIT， PDGFRA， PDGFRB， RET，和CSF-1R选择性高10倍。AC220是最有效的FLT3选择性抑制剂，可用于治疗急性骨髓性白血病(AML)。AC220在生化和细胞实验中具有低纳摩尔效果和特别的激酶选择性，抑制大部分人类蛋白激酶时具有高选择性。AC220是治疗急性骨髓性白血病(AML)的新型FLT3抑制剂。
化学数据
| 分子量 | 560.67 |
| 分子式 | C29H32N6O4S |
| CAS号 | 950769-58-1 |
| 纯度 | >98% |
| 溶解性（25°C） | DMSO ≥100 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 |
|---|
| 细胞系 | MV4-11 and RS4;11 cells |
| 方法 | Cellular assays. MV4-11 and RS4;11 cells were cultured in Iscove media with 10% fetal bovine serum (FBS) and RPMI complete with 10% FBS, respectively. For proliferation assays, cells were cultured overnight in low serum media (0.5% FBS), then seeded in a 96-well plate at 40 000 cells per well. Inhibitors were added to the cells and incubated at 37°C for 72 hours. Cell viability was measured using the Cell Titer-Blue Cell Viability Assay from Promega. To measure inhibition of FLT3 autophosphorylation, cells were cultured in low serum media (0.5% FBS) overnight and seeded at a density of 400 000 cells per well in a 96-well plate the following day. The cells were incubated with inhibitors for 2 hours at 37°C. To induce FLT3 autophosphorylation in RS4;11 cells, 100 ng/mL FLT3 ligand (R&D Systems) was added for 15 minutes after the 2-hour compound incubation. Cell lysates were prepared and incubated in 96-well plates precoated with a total FLT3 capture antibody (R&D Systems). The coated plates were incubated with either a biotinylated antibody against FLT3 (R&D Systems) to detect total FLT3 or an antibody against phosphotyrosines (Millipore) to detect FLT3 autophosphorylation. In both cases, a SULFO-tagged streptavidin secondary antibody was used for electrochemiluminescence detection on the Meso Scale Discovery platform. |
| 浓度 | 0~10 μM |
| 处理时间 | 72 h |
| 动物实验 |
|---|
| 动物模型 | subcutaneous tumor model |
| 配制 | 22% hydroxypropyl-β-cyclodextrin |
| 剂量 | 10 mg/kg |
| 给药处理 | orally |
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 | 1.7836 mL | 8.9179 mL | 17.8358 mL |
| 5 mM | 0.3567 mL | 1.7836 mL | 3.5672 mL |
| 10 mM | 0.1784 mL | 0.8918 mL | 1.7836 mL |
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