ArticleZhongguo fei ai za zhi = Chinese journal of lung cancer2018
[Bioinformatics Analysis of DNA Methylation in the Promoters of LincRNA in Lung Adenocarcinoma].
Article in Zhongguo fei ai za zhi = Chinese journal of lung cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPrevious studies have found the lincRNAs play important roles in the occurrence and development of lung adenocarcinoma, but their regulated mechanims are still unclear. The aim of this study is to evaluate the relationship between DNA methylation and lincRNA expression, and the effect of prognosis in lung adenocarcinoma.
methodsThe whole genome Illumina Methylation 450 DNA methylatiuon data and RNAseq for lung adenocarcinoma were download from TCGA. DNA methylation around lincRNA and their relationship to gene expression were analyzed. Their contribution to lung adenocarcinoma were further analyzed by comparing DNA methylation and lincRNA expression in tumor and adjacent tissues.
resultsThe methylation level in promoter region was lower than other positions in lincRNA, and was negatively correlated with gene expression. There were 427 lincRNA genes showed differential DNA methylation in their promoter regions in tumor and adjacent tissues. Among these, 15 lincRNA genes showed differential gene expression and negatively correlated with DNA methylation, including FENDRR (a tumor progression and metastasis gene) whose high methylation in its promoter showed poor survival in lung adenocarcinoma.
conclusionsThe expression of lincRNA can be regulated by DNA methylation in their promoter regions, and the level of DNA methylation is related to patient prognosis in lung adenocarcinoma.
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