摘要
DNA甲基转移酶(DNMT) 3A为负责催化DNA从头甲基化的甲基转移酶类,DNMT3A基因突变将导致细胞基因组DNA异常甲基化,包括基因组DNA总体甲基化水平减低及部分基因启动子区CpG岛甲基化水平增高状态,从而导致肿瘤的发生.近年来,多项研究结果显示,DNMT3A基因突变率在急性髓细胞白血病(AML)、骨髓增生异常综合征(MDS)等恶性血液病中较高,并可作为新的预后不良指标,在指导恶性血液病的临床治疗、判断预后中发挥作用.笔者就DNMT3A基因突变在多种恶性血液病中作用的相关研究进展进行综述.
DNA methyltransferase (DNMT) 3A functions in de novo methylation.Once DNMT3A mutates,it will lead to aberrant methylation of genomic DNA,including the global hypomethylation of DNA and the hypermethylation of the CpG islands in some gene promoter,resulting in cancer.Recent studies have demonstrated that DNMT3A gene mutations are actively involved in acute myelogenous leukemia (AML),myelodysplastic syndromes (MDS),and it seems to be a newly prognostic marker.In this review,advances of DNMT3A gene mutations in hematologic malignancies are summarized.
出处
《国际输血及血液学杂志》
CAS
2015年第2期145-148,共4页
International Journal of Blood Transfusion and Hematology
基金
湖南省医药卫生科研计划项目(2013SK3259)