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New differentially expressed genes and differential DNA methylation underlying refractory epilepsy.


ABSTRACT: Epigenetics underlying refractory epilepsy is poorly understood, especially in patients without distinctive genetic alterations. DNA methylation may affect gene expression in epilepsy without affecting DNA sequences. Herein, we analyzed genome-wide DNA methylation and gene expression in brain tissues of 10 patients with refractory epilepsy using methylated DNA immunoprecipitation linked with sequencing and mRNA Sequencing. Diverse distribution of differentially methylated genes was found in X chromosome, while differentially methylated genes appeared rarely in Y chromosome. 62 differentially expressed genes, such as MMP19, AZGP1, DES, and LGR6 were correlated with refractory epilepsy for the first time. Although general trends of differentially enriched gene ontology terms and Kyoto Encyclopedia of Genes and Genome pathways in this study are consistent with previous researches, differences also exist in many specific gene ontology terms and Kyoto Encyclopedia of Genes and Genome pathways. These findings provide a new genome-wide profiling of DNA methylation and gene expression in brain tissues of patients with refractory epilepsy, which may provide a basis for further study on the etiology and mechanisms of refractory epilepsy.

SUBMITTER: Liu X 

PROVIDER: S-EPMC5349997 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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New differentially expressed genes and differential DNA methylation underlying refractory epilepsy.

Liu Xi X   Ou Shu S   Xu Tao T   Liu Shiyong S   Yuan Jinxian J   Huang Hao H   Qin Lu L   Yang Hui H   Chen Lifen L   Tan Xinjie X   Chen Yangmei Y  

Oncotarget 20161201 52


Epigenetics underlying refractory epilepsy is poorly understood, especially in patients without distinctive genetic alterations. DNA methylation may affect gene expression in epilepsy without affecting DNA sequences. Herein, we analyzed genome-wide DNA methylation and gene expression in brain tissues of 10 patients with refractory epilepsy using methylated DNA immunoprecipitation linked with sequencing and mRNA Sequencing. Diverse distribution of differentially methylated genes was found in X ch  ...[more]

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