急性髓性白血病中 DNA 甲基化调控基因突变的临床特征和预后意义。

IF 5.7 2区 医学 Q1 Medicine
Xiaoyan Xu, Hong Wang, Haohao Han, Yifang Yao, Xueqian Li, Jiaqian Qi, Chengsen Cai, Meng Zhou, Yaqiong Tang, Tingting Pan, Ziyan Zhang, Jingyi Yang, Depei Wu, Yue Han
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引用次数: 0

摘要

背景:DNA甲基化是一种调控基因表达的表观遗传修饰。然而,关于急性髓性白血病(AML)中DNA甲基化调控基因突变(DMRGM)的综合分析数据有限,主要涉及DNA甲基转移酶3α(DNMT3A)、异柠檬酸脱氢酶1(IDH1)、异柠檬酸脱氢酶2(IDH2)和Tet甲胞苷二氧酶2(TET2):2016年1月至2019年8月期间,对843名新确诊的非M3 AML患者的临床特征和基因突变情况进行了回顾性研究。29.7%的患者(250/843)表现为DMRGM。其特点是年龄较大、白细胞计数较高和血小板计数较高:我们的研究提供了 AML 患者中 DMRGM 的概况,它被确定为预后不良的风险因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Clinical characteristics and prognostic significance of DNA methylation regulatory gene mutations in acute myeloid leukemia.

Clinical characteristics and prognostic significance of DNA methylation regulatory gene mutations in acute myeloid leukemia.

Clinical characteristics and prognostic significance of DNA methylation regulatory gene mutations in acute myeloid leukemia.

Clinical characteristics and prognostic significance of DNA methylation regulatory gene mutations in acute myeloid leukemia.

Background: DNA methylation is a form of epigenetic modification that regulates gene expression. However, there are limited data on the comprehensive analysis of DNA methylation regulated gene mutations (DMRGM) in acute myeloid leukemia (AML) mainly referring to DNA methyltransferase 3α (DNMT3A), isocitrate dehydrogenase 1 (IDH1), isocitrate dehydrogenase 2 (IDH2), and Tet methylcytidine dioxygenase 2 (TET2).

Results: A retrospective study of the clinical characteristics and gene mutations in 843 newly diagnosed non-M3 AML patients was conducted between January 2016 and August 2019. 29.7% (250/843) of patients presented with DMRGM. It was characterized by older age, higher white blood cell count, and higher platelet count (P < 0.05). DMRGM frequently coexisted with FLT3-ITD, NPM1, FLT3-TKD, and RUNX1 mutations (P < 0.05). The CR/CRi rate was only 60.3% in DMRGM patients, significantly lower than in non-DMRGM patients (71.0%, P = 0.014). In addition to being associated with poor overall survival (OS), DMRGM was also an independent risk factor for relapse-free survival (RFS) (HR: 1.467, 95% CI: 1.030-2.090, P = 0.034). Furthermore, OS worsened with an increasing burden of DMRGM. Patients with DMRGM may be benefit from hypomethylating drugs, and the unfavorable prognosis of DMRGM can be overcome by hematopoietic stem cell transplantation (HSCT). For external validation, the BeatAML database was downloaded, and a significant association between DMRGM and OS was confirmed (P < 0.05).

Conclusion: Our study provides an overview of DMRGM in AML patients, which was identified as a risk factor for poor prognosis.

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来源期刊
Clinical Epigenetics
Clinical Epigenetics Biochemistry, Genetics and Molecular Biology-Developmental Biology
CiteScore
8.90
自引率
5.30%
发文量
150
审稿时长
12 weeks
期刊介绍: Clinical Epigenetics, the official journal of the Clinical Epigenetics Society, is an open access, peer-reviewed journal that encompasses all aspects of epigenetic principles and mechanisms in relation to human disease, diagnosis and therapy. Clinical trials and research in disease model organisms are particularly welcome.
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