Systematic functional study of cytochrome P450 2D6 promoter polymorphisms in the Chinese Han population.

Systematic functional study of cytochrome P450 2D6 promoter polymorphisms in the Chinese Han population.
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中国汉族人群细胞色素P450 2D6启动子多态性的系统功能研究。

DOI:
10.1371/journal.pone.0057764
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Qin S
Qin S
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Gong X;Liu Y;Zhang X;Wei Z;Huo R;Shen L;He L;Qin S

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药物代谢基因启动子多态性可导致个体间基因表达差异,从而可能导致药物不良反应和治疗失败。基于课题组建立的中国汉族人群CYP2D6基因多态性数据库,对该人群启动子区域的单核苷酸多态性(snp)及其相应的单倍型进行了功能表征。采用定点诱变技术,在荧光素酶报告基因系统上构建了所有鉴定到的5个snp和10个频率等于或大于0.01的单倍型。双荧光素酶报告系统用于分析调控活性。Haplo3(- 2183G>A、- 1775A>G、- 1589G>C、- 1431C>T、- 1000G>A、- 678A>G)、Haplo8(- 2065G>A、- 2058T>G、- 1775A>G、- 1589G>C、- 1235G>A、- 678A>G)和MU3(- 498C>A)在人肝癌细胞系中产生的活性分别是野生型的0.7、0.7、1.2倍(p<0.05)。这些发现可能有助于优化药物治疗和个性化药物的设计。
The promoter polymorphisms of drug-metabolizing genes can lead to interindividual differences in gene expression, which may result in adverse drug effects and therapeutic failure. Based on the database of CYP2D6 gene polymorphisms in the Chinese Han population established by our group, we functionally characterized the single nucleotide polymorphisms (SNPs) of the promoter region and corresponding haplotypes in this population. Using site-directed mutagenesis, all the five SNPs identified and ten haplotypes with a frequency equal to or greater than 0.01 in the population were constructed on a luciferase reporter system. Dual luciferase reporter systems were used to analyze regulatory activity. The activity produced by Haplo3(−2183G>A, −1775A>G, −1589G>C, −1431C>T, −1000G>A, −678A>G), Haplo8(−2065G>A, −2058T>G, −1775A>G, −1589G>C, −1235G>A, −678A>G) and MU3(−498C>A) was 0.7−, 0.7−, 1.2− times respectively compared with the wild type in human hepatoma cell lines(p<0.05). These findings might be useful for optimizing pharmacotherapy and the design of personalized medicine.
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