Belinostat (PXD101)是一种新型的HDAC抑制剂,IC50为27 nM,对抵抗Cisplatin的肿瘤有效。
别名:PXD101; PX105684
Belinostat (PXD101)是一种新型的HDAC抑制剂,IC50为27 nM,对抵抗Cisplatin的肿瘤有效。Belinostat抑制肿瘤细胞生长(包括A2780, HCT116, HT29, WIL, CALU-3, MCF7, PC3,及HS852),IC50为0.2到0.66 μM。Belinostat 作用于A2780/cp70 和2780AD细胞时活性很低, 这两个细胞是抗cisplatin和doxorubicin的A2780细胞衍生的。Belinostat通过PARP分裂和组蛋白H3/H4的乙酰化而诱导细胞凋亡。
体外实验* | |
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细胞系 | A2780, A2780/cp70, CALU-3, MCF7, PC3, HS852, HT29 and HCT116 cell lines |
方法 | Cytotoxicity Assay. Drug sensitivity was determined by a clonogenic assay (13). Briefly, cells were plated in 5 ml of medium at a density of 8 × 104 cells/25 cm2 flask and allowed to attach and grow for 48 h. Cells were exposed to drug (five concentrations from 0.016 to 10 μM) for 24 h. The medium was removed, and 1 ml of trypsin/EDTA was added to each flask. Once the cells had detached, 1 ml of medium was added, the cells were resuspended, and those from the control untreated flask were counted. Cells were diluted and plated into 6-cm Petri dishes (three per flask) at a density of 500-2000 cells/dish depending on the cell line. Cells from the drug-treated flasks were diluted and plated as for the control flasks. Dishes were incubated for 10–15 days at 37°C. Cells were washed with PBS, fixed in methanol, and stained with crystal violet, and colonies that contained ≥50 cells counted. Sensitivity is expressed as the IC50 (mean ± SE of three experiments) defined as the concentration of drug required to reduce the number of colonies to 50% of that of the control untreated cells. |
浓度 | 0.016 ~ 10 μM |
处理时间 | 24 h |
*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* | |
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动物模型 | A2780, A2780/cp70 and HCT116 tumor-bearing mice model |
配制 | dissolved in DMSO and then diluted in water to give a final concentration of DMSO of 10% |
剂量 | a single injection of 40 mg/kg |
给药处理 | i.p. |
*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。
分子量 | 318.35 |
分子式 | C15H14N2O4S |
CAS号 | 414864-00-9 |
溶解性(25°C) | DMSO 60 mg/mL |
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。 |
*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 | 3.1412 mL | 15.706 mL | 31.412 mL |
5 mM | 0.6282 mL | 3.1412 mL | 6.2824 mL |
10 mM | 0.3141 mL | 1.5706 mL | 3.1412 mL |
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。
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