Epigenome-wide association study of chronic obstructive pulmonary disease and lung function in Koreans.

Epigenome-wide association study of chronic obstructive pulmonary disease and lung function in Koreans.
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DOI:
10.2217/epi-2017-0002
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发表时间:
2017-07
期刊:
影响因子:
3.8
通讯作者:
London SJ
London SJ
中科院分区:
医学4区
文献类型:
--
作者:
Lee MK;Hong Y;Kim SY;Kim WJ;London SJ

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鉴定与慢性阻塞性肺疾病 (COPD) 和肺功能特征相关的差异甲基化探针 (DMP) 和区域 (DMR)。我们使用 Infinium HumanMmethylation450(n = 100,韩国 COPD 队列)对血液 DNA 中的 COPD 和肺活量参数(包括 1 秒用力呼气量 (FEV1)、用力肺活量 (FVC) 和 FEV1/FVC)进行了全表观基因组关联研究。经过多重测试校正后,我们发现了 1 个显着的 DMP(cg03559389,DIP2C)和 104 个显着的 DMR。其中,34 个 DMR 映射到同一性状差异表达的基因。其中五个基因与两个以上性状相关:CTU2、USP36、ZNF516、KLK10 和 CPT1B。我们在韩国人血液 DNA 中发现了与 COPD 和肺功能相关的新差异甲基化位点,并证实了之前在非亚洲人中的发现。表观遗传修饰可能有助于这些表型的病因学。
To identify differentially methylated probes (DMPs) and regions (DMRs) in relation to chronic obstructive pulmonary disease (COPD) and lung function traits. We performed an epigenome-wide association study of COPD and spirometric parameters, including forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and FEV1/FVC, in blood DNA using the Infinium HumanMethylation450 (n = 100, a Korean COPD cohort). We found one significant DMP (cg03559389, DIP2C) and 104 significant DMRs after multiple-testing correction. Of these, 34 DMRs mapped to genes differential expressed with respect to the same trait. Five of the genes were associated with more than two traits: CTU2, USP36, ZNF516, KLK10 and CPT1B. We identified novel differential methylation loci related to COPD and lung function in blood DNA in Koreans and confirmed previous findings in non-Asians. Epigenetic modification could contribute to the etiology of these phenotypes.
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