Comprehensive epigenetic analysis of the signature genes in lung adenocarcinoma

被引：6

作者：

Zhang, Yunfeng ^{[1
]}

Zhao, Weidong ^{[2
]}

Zhang, Jia ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Affiliated Hosp 1, Dept Thorac Surg 2, Xian, Shaanxi, Peoples R China

[2] Weinan Cent Hosp Shanxi Prov, Dept Oncosurg, Weinan, Peoples R China

来源：

EPIGENOMICS | 2017年 / 9卷 / 09期

关键词：

biomarkers; lung adenocarcinoma; signature genes; DNA METHYLATION; EXPRESSION; CANCER; PROLIFERATION; INTEGRATION; PROGNOSIS; RECEPTOR; GENOME;

D O I：

10.2217/epi-2017-0023

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Aim: This study aimed to explore the epigenetic modifications of signature genes in lung adenocarcinoma. Materials & methods: The data of miRNA expression, mRNA expression and DNA methylation were downloaded from The Cancer Genome Atlas. Differential analysis was performed, followed by correlation analysis of miRNA-mRNA and DNA methylation-mRNA. Results: A total of 14 significant inverse correlations between gene expression and DNA methylation were identified, the expressions of which were selected for further validation via GSE27262, displaying similar pattern with that of the integrated analysis. In addition, qRT-PCR results showed that the expression profiling results of six mRNAs and one miRNA were consistent with the findings of integrated analysis. Five genes showed higher diagnostic value, which was also associated with overall survival of patients. Conclusion: Taken together, the epigenetic alterations of signature genes may hold promise for becoming biomarkers for the early detection of lung adenocarcinoma.

引用

页码：1161 / 1173

页数：13

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