生物活性
在M-NFS-60,Bac1.2F5和M-07e细胞中,Pexidartinib抑制CSF1依赖性增殖,IC50分别为0.44μM,0.22μM和0.1μM。
体内研究中,Pexidartinib (40 mg/kg, p.o.)在MMTV-PyMT小鼠中显著抑制稳态和PTX诱导的肿瘤通过CD45+CD11b+Ly6C–Ly6G–F4/80+浸润。Pexidartinib/PTX治疗也会导致乳腺肿瘤内CD31+血管密度显著减少,伴随细胞凋亡和坏死的诱导。在负荷GL261肿瘤的C57小鼠中,Pexidartinib (p.o.)抑制恶性胶质瘤细胞侵袭。
化学数据
分子量 | 417.81 |
分子式 | C20H15ClF3N5 |
CAS号 | 1029044-16-3 |
纯度 | >99% |
溶解性(25°C) | DMSO 15 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 | GIST, MPNST, and ST8814 cells |
方法 | Cell viability assays. Cell viability assays were carried out with the Dojindo Molecular Technologies Kit per manufacturer's instructions. Briefly, 2,000 cells were plated in 96-well plates in RPMI media with 10% FBS and then treated with the indicated drugs the next day. Media were replaced with 100 μL of media with 10% serum and 10% CCK-8 (AbMole) solution. After 1 hour, the optical density was read at 450 nm using a Spectra Max 340 PC (Molecular Devices Corp.) to determine viability. Background values from negative control wells without cells were subtracted for final sample quantification. Data were plotted as % cell viability compared with dimethyl sulfoxide (DMSO; no drug) control. |
浓度 | 0~1μM |
处理时间 | 144h |
动物实验 |
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动物模型 | Ten-week-old mice fed a chow or high-fat diet for 10 weeks |
配制 | dissolved in 5% DMSO and 25% PEG300 in ddH2O |
剂量 | 50 mg/kg every second day for 3 weeks |
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 | 2.3934 mL | 11.9672 mL | 23.9343 mL |
5 mM | 0.4787 mL | 2.3934 mL | 4.7869 mL |
10 mM | 0.2393 mL | 1.1967 mL | 2.3934 mL |