Bing Zhu
Yingfeng Li
aNational Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
bCollege of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
More InformationCorresponding author: E-mail address: zhubing@ibp.ac.cn (Bing Zhu);E-mail address: liyingfeng@ibp.ac.cn (Yingfeng Li)
Publish Date:2021-01-20
Abstract
Abstract
Decades of investigation on DNA methylation have led to deeper insights into its metabolic mechanisms and biological functions. This understanding was fueled by the recent development of genome editing tools and our improved capacity for analyzing the global DNA methylome in mammalian cells. This review focuses on the maintenance of DNA methylation patterns during mitotic cell division. We discuss the latest discoveries of the mechanisms for the inheritance of DNA methylation as a stable epigenetic memory. We also highlight recent evidence showing the rapid turnover of DNA methylation as a dynamic gene regulatory mechanism. A body of work has shown that altered DNA methylomes are common features in aging and disease. We discuss the potential links between methylation maintenance mechanisms and disease-associated methylation changes.Keywords: DNMT1,
Mitotic DNA methylation inheritance,
Neighboring reinforcement model,
Aging-associated methylation changes
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