DNA 甲基转移酶在肿瘤发病机制中的研究进展 |
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引用本文: | 赵淑磊[综述] 王京[审校]. DNA 甲基转移酶在肿瘤发病机制中的研究进展[J]. 实用肿瘤学杂志, 2014, 0(1): 75-80 |
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作者姓名: | 赵淑磊[综述] 王京[审校] |
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作者单位: | 山东大学附属省立医院 ,济南 250000 |
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摘 要: | DNA甲基化是表观遗传学的主要形式,而DNA甲基转移酶( DNMTs)是DNA甲基化的主要调节酶,DNA甲基转移酶的激活参与了肿瘤的发生和发展过程,同时伴有肿瘤抑制基因的高甲基化沉默和低表达,是病人预后不良的标志;DNA甲基转移酶3b( DNMT3b)的多态性及吸烟所致的DNMTs表达的改变是肿瘤发生的危险因素,靶向DNMTs治疗由于其细胞毒性小,是当前研究的一个热点。本文就DNA甲基转移酶在肿瘤发病机制中的作用做一综述。
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关 键 词: | 肿瘤 DNA甲基化 DNA甲基转移酶 |
New progress of the research on the DNA methyltransferases in the pathogenesis of carcinoma |
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Affiliation: | ZHAO Shulei, WANG Jing( Provincial Hospital Affiliated to Shandong University,Jinan 250000,China) |
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Abstract: | DNA methylation is the main profile of epigenetics .DNA methyltransferases ( DNMTs) is the main regulatory enzyme during DNA methylation .The activation of DNMTs ,the hypermethylation and low expres-sion of some tumor suppressor genes are involved in the carcinogenesis and development of various human canc -ers,which is a biomarker of poor prognosis .Both of the polymorphism of DNA methyltransferases ( DNMT3b) and tobacco smoking are risk factors of tumorgenesis .The targeted therapy of DNMTs is very popular due to its low cy-totoxity.This review will focus on new progress of the research on DNMTs in pathogenesis of carcinoma . |
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Keywords: | Carcinoma DNA methylation DNA methyltransferase |
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