生物活性
PF-3758309是一种口服生物可利用的p21活化激酶4 (PAK4)小分子抑制剂,具有潜在的抗肿瘤活性。PF-3758309抑制PAK4底物GEF-H1的磷酸化(IC(50) = 1.3 nM)和一组肿瘤细胞株的非锚定生长(IC(50) = 4.7 +/- 3 nM)。PF-3758309还能抑制A549细胞的增殖(IC50 = 20 nM)和非锚定生长(IC50 = 27 nM)。PF-3758309可阻断多种人肿瘤异种移植的生长,在最敏感的模型中,其血浆EC50值为0.4 nM。在肿瘤模型中,PF-3758309在蛋白质组学研究中抑制pak4依赖的通路,并调节与细胞增殖和生存相关的功能活动。
化学数据
分子量 | 490.62 |
分子式 | C25H30N8OS |
CAS号 | 898044-15-0 |
纯度 | >98% |
溶解性(25°C) | DMSO 10 mM |
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 | HEK293T, HCT116, and SKOV3 cells |
方法 | Using a panel of cancer cell lines test the potency of PF-3758309. On day 1, plating cells on 384-well plates. On day 2, adding compounds to the cell culture. Incubating the cells with the compound for 3 days. On day 5, aspirating all media from the wells. Dose-dependent effects of PF-3758309 on cell proliferation are quantified via the CellTiter-Glo Luminescent Cell Viability Assay(a,b,c), which is a homogeneous method of determining the number of viable cells in culture based on quantitation of the ATP present, an indicator of metabolically active cells. Proliferation data displayed for HEK293T, HCT116, and SKOV3 cells are measured using the Cyquant NF assay as specified by the manufacturer. Briefly, 24 h after seeding on 384-well plates, cells are treated with vehicle or PF-3758309, Dasatinib, or the positive control, Bleomycin (60 mU/ mL).After drug treatment for 72 hours, cell proliferation is measured. Results for each drug are normalized to vehicle control and expressed as a percentage of maximum assay inhibition relative to Bleomycin. Error bars represent the SD from at least three experiments |
浓度 | ~1 μM |
处理时间 | 72 hours |
动物实验 |
---|
动物模型 | Xenograft tumors in nude mice |
配制 | 0.5% methylcellulose |
剂量 | 7.5-30 mg/kg BID |
给药处理 | p.o. |
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 | 2.0382 mL | 10.1912 mL | 20.3824 mL |
5 mM | 0.4076 mL | 2.0382 mL | 4.0765 mL |
10 mM | 0.2038 mL | 1.0191 mL | 2.0382 mL |