生物活性
Flavopiridol (Alvocidib)与ATP竞争性抑制CDKs,包括CDK1, CDK2, CDK4和CDK6,IC50约为40 nM。作用于CDK1, 2, 4, 6比作用于CDK7选择性强7.5倍。Flavopiridol最初被发现能抑制EGFR和PKA。作为CDK广谱抑制剂,Flavopiridol可以抑制细胞周期进展,使其停在G1期或G2期。0.3 μM Flavopiridol作用于MCF-7或MDA-MB-468细胞,通过抑制CDK4或CDK2激酶活性,而诱导细胞周期停在G1 期。 Flavopiridol 作用于无关激酶,如MAP, PAK, PKC, 和 EGFR,活性低很多,IC50 >14 μM。
化学数据
分子量 | 401.84 |
分子式 | C21H20ClNO5 |
CAS号 | 146426-40-6 |
纯度 | 99.87% |
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 | ovarian tumor cell line A2780/ DDP-S |
方法 | 72 h Proliferation Assay. In vitro cytotoxicity was assessed in tissue culture cells by MTS (3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfenyl)-2H-tetrazolium, inner salt) assay as previously described.23 Depending upon the cell line used, cells were plated at a density of 3000- 6000 cells/well, in a 96 well plate, and 24 h later, drugs were added and serial-diluted. The cells were incubated at 37 °C for 72 h at which time the tetrazolium dye, MTS in combination with phenazine methosulfate, was added. After 3 h, the absorbency was measured at 492 nm, which is proportional to the number of viable cells. The results are expressed as IC50 values. |
浓度 | 0~10 μM |
处理时间 | 72 h |
动物实验 |
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动物模型 | A2780 human ovarian carcinoma xenograft model in nude mice |
配制 | dissolved in a mixture of Cremophor/ ethanol (50:50) , final dilution to the required dosage strength was made with water |
剂量 | 7.5mg/kg qdx8 |
给药处理 | i.p. |
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 | 2.4886 mL | 12.4428 mL | 24.8855 mL |
5 mM | 0.4977 mL | 2.4886 mL | 4.9771 mL |
10 mM | 0.2489 mL | 1.2443 mL | 2.4886 mL |