| Literature DB >> 29393154 |
Yoshifumi Baba, Taisuke Yagi, Hiroshi Sawayama, Yukiharu Hiyoshi, Takatsugu Ishimoto, Masaaki Iwatsuki, Yuji Miyamoto, Naoya Yoshida, Hideo Baba.
Abstract
Epigenetic changes play a crucial role in human cancer development. DNA methylation is a central epigenetic process that regulates levels of gene expression. Changes in DNA methylation that occur in human tumors include global DNA hypomethylation and site-specific CpG island promoter hypermethylation. Long interspersed element-1 (LINE-1) is a repetitive DNA retrotransposon that duplicates via a copy-and-paste genetic mechanism. As LINE-1 constitutes approximately 17% of the human genome, the extent of LINE-1 methylation is regarded as a surrogate marker of global DNA methylation. In a variety of gastrointestinal (GI) cancers, LINE-1 hypomethylation is strongly associated with a poor prognosis, supporting its potential role as a prognostic biomarker. In this article, we summarize current knowledge regarding LINE-1 methylation and its prognostic impact in GI cancers.Entities:
Keywords: Epigenetics; Gastrointestinal cancer; Long interspersed element-1; Methylation; Prognosis
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Year: 2018 PMID： 29393154 DOI： 10.1159/000484104
Source DB: PubMed Journal: Digestion ISSN： 0012-2823 Impact factor: 3.216