生物活性 | |||
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描述 | 5-Fluorouracil (5-FU), or combined with other chemotherapeutic agents, is widely used in the treatment of a range of cancers, including colorectal and breast cancers, head and neck cancers, cancers of the aerodigestive tract[1]. 5-Fluorouracil can disrupt RNA synthesis through RNA mis-incorporation by its active metabolites, as well as block dTMP synthesis through inhibition of thymidylate synthase. After entering into cells, 5-Fluorouracil can be converted to its active metabolites, fluorodeoxyuridine monophosphate (FdUMP), fluorodeoxyuridine triphosphate (FdUTP) and fluorouridine triphosphate[2]. FdUMP can inhibit the thymidylate synthase through binding to the nucleotide-binding site of thymidylate synthase, thus blocking the binding of normal substrate dUMP and inhibiting dTMP synthesis. And this will cause the disruption of DNA replication and repair[3]. FUTP can extensively incorporate into RNA and disrupt RNA processing and function[4]. Thus, 5-Fluorouracil showed cytotoxicity in various cells. | ||
作用机制 | The mechanism of cytotoxicity of 5-FU has been ascribed to the mis-incorporation of fluoronucleotides into RNA and DNA, as well as the inhibition of thymidylate synthase[4]. |
细胞研究 | |||||
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细胞系 | 浓度 | 检测类型 | 检测时间 | 活动说明 | 数据源 |
HL-60 | Growth Inhibition Assay | 72 h | IC50=8.601 μg/mL | 24095176 | |
HT-29 | Growth Inhibition Assay | 72 h | IC50> 25 μg/mL | 24095176 | |
MCF-7 | Growth Inhibition Assay | 72 h | IC50=20 μg/mL | 24095176 |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
7.69mL 1.54mL 0.77mL |
38.44mL 7.69mL 3.84mL |
76.88mL 15.38mL 7.69mL |
参考文献 |
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