[1]李玉红,焦连丽,郝明媛,等.抗结核药物性肝损伤患者外周血基因组DNA甲基化差异的筛查和验证[J].第三军医大学学报,2019,41(04):353-359.
 LI Yuhong,JIAO Lianli,HAO Mingyuan,et al.DNA methylation microarraybased screening of epigenetically masked genes in patients with anti-tuberculosis drug-induced liver injury[J].J Third Mil Med Univ,2019,41(04):353-359.
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抗结核药物性肝损伤患者外周血基因组DNA甲基化差异的筛查和验证(/HTML )
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《第三军医大学学报》[ISSN:1000-5404/CN:51-1095/R]

卷:
41卷
期数:
2019年第04期
页码:
353-359
栏目:
临床医学
出版日期:
2019-02-28

文章信息/Info

Title:
DNA methylation microarraybased screening of epigenetically masked genes in patients with anti-tuberculosis drug-induced liver injury
作者:
李玉红焦连丽郝明媛任琦崔丽华韩铁生郑国颖冯福民
华北理工大学公共卫生学院,河北省煤矿卫生与安全重点实验室; 呼伦贝尔市传染病医院检验科
Author(s):
LI Yuhong JIAO Lianli HAO Mingyuan REN Qi CUI Lihua HAN Tiesheng ZHENG Guoying FENG Fumin

Hebei Provincial Key Laboratory of Coal Industry Occupational Health and Safety, School of Public Health, North China University of Science and Technology, Tangshan; Department of Clinical Laboratory, Hulun Buir Infectious Disease Hospital, Hulun, Buir,  Inner Mongolia Autonomous Region, 063210, Hebei Province, China

关键词:
抗结核药物性肝损伤DNA甲基化基因芯片
Keywords:
anti-tuberculosis druginduced liver injury DNA methylation microarray
分类号:
R394-33; R446.7; R575
文献标志码:
A
摘要:

目的 采用基因甲基化芯片技术筛选抗结核药物性肝损伤(anti-tuberculosis drug induced liver injury,ADLI)患者与非肝损伤患者间DNA 差异甲基化基因位点。探讨DNA 甲基化与ADLI发病机制的关系。方法 选取2016年1月至2017年7月间唐山市第四医院治疗的肺结核初治患者共137例,分为ADLI组(n=65) 、非ADLI组(n=72) 。收集研究对象的临床一般资料及全血标本。选择其中14例(7例ADLI,7例非ADLI)患者,提取全血标本的DNA,利用Illumina 850K 芯片技术检测病例组和对照组DNA的差异甲基化情况。对芯片筛选出差异较大的甲基化基因DUSP22、HLA-C,进一步在剩余的65例病例组和58例对照组中采用甲基化特异PCR(MSP)方法验证甲基化水平,并采用荧光定量PCR检测DUSP22、HLA-C基因的mRNA水平。结果 共检测853 307个CpG位点,病例组和对照组差异显著的位点共1 012个,其中高甲基化位点254个,低甲基化位点758个,主要位于基因体区。聚类分析结果显示,在细胞黏附、金属离子结合等过程中存在大量甲基化差异基因。病例组与对照组人类双特异性磷酸酶DUSP22基因、人类白细胞抗原HLA-C基因的甲基化率差异均有统计学意义(65.6% vs 36.9%、37.9% vs 58.5%,P<0.05),对照组中DUSP22 mRNA表达水平高于病例组,而HLA-C mRNA表达水平低于病例组。结论 外周血中DUSP22、HLA-C基因DNA甲基化与ADLI的发生相关。

Abstract:

Objective To investigate the differentially methylated genes between patients with anti-tuberculosis drug induced liver injury (ADLI) and patients without hepatic injury using DNA methylation microarrays and explore the relationship between DNA methylation and ADLI. Methods This study was conducted among 137 patients with newly diagnosed pulmonary tuberculosis (including 65 patients with ADLI and 72 without ADLI) treated in the Fourth Hospital of Tangshan City between January, 2016 and July, 2017. The clinical data were collected and whole blood samples were obtained from all the patients, and 14 patients, including 7 with ADLI and 7 without ADLI, were selected for examination of DNA methylation status using Illumina 850K bead-chip. The methylation status of the 2 differentially methylated genes, DUSP22 and HLA-C, which were identified by analysis of the microarray data, were verified in the remaining cases using methylation-specific PCR (MSP); RT-PCR was used to detect the mRNA levels of DUSP22 and HLA-C genes in all the patients. Results We analyzed a total of 853 307 loci and identified 1 012 differential methylated loci between ADLI group and non-ADLI group, including 254 hypermethylated and 758 hypomethylated loci, located mainly in the gene body regions. Cluster analysis showed that a large number of differentially methylated genes were involved in the process of cell adhesion and metal ion binding. MSP verified that the methylation rates of DUSP22 and HLA-C genes differed significantly between ADLI group and non-ADLI group (65.6% vs 36.9%; 37.9% vs 58.5%; both P<0.05). The mRNA expression of DUSP22 was higher and that of HLA-C was lower in non-ADLI group than in ADLI group. ConclusionDNA methylation of DUSP22 and HLA-C in the peripheral blood is associated with the development of ADLI.
 

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更新日期/Last Update: 2019-02-22