Cited by 1,065Epigenetics and DNA MethylationGenetic Syndromes and ImprintingGenomics and Chromatin Dynamics

Reversing DNA Methylation: Mechanisms, Genomics, and Biological Functions

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Wu, Hao, Zhang, Yi·2014·Cell

Abstract

Methylation of cytosines in the mammalian genome represents a key epigenetic modification and is dynamically regulated during development. Compelling evidence now suggests that dynamic regulation of DNA methylation is mainly achieved through a cyclic enzymatic cascade comprised of cytosine methylation, iterative oxidation of methyl group by TET dioxygenases, and restoration of unmodified cytosines by either replication-dependent dilution or DNA glycosylase-initiated base excision repair. In this review, we discuss the mechanism and function of DNA demethylation in mammalian genomes, focusing particularly on how developmental modulation of the cytosine-modifying pathway is coupled to active reversal of DNA methylation in diverse biological processes.

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Crossref · 10.1016/j.cell.2013.12.019

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  • Sequencing-based approaches have found 5hmC only in CG dinucleotides in mouse embryonic stem cells and brain cortical tissue.

    “Although sequencing-based approaches have only found 5hmC in CG dinucleotides in mESC and brain cortical tissue (24), 5hmCH accounted for 38% of 5mCH+5hmCH in cerebellar granule cells, suggesting that 5mCH is also targeted for TET mediated methylation turnover (40).”

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Authors
Wu, H., & Zhang, Y.
Affiliations
Boston Children's Hospital (US)
Corresponding author
Zhang, Yi
Venue
Cell
Publisher
Elsevier BV
Published
2014-01
Volume
156
Issue
1-2
Pages
45-68
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2036848594
Cited by
1,065
References
219
Citations by year
2026: 36 · 2025: 57 · 2024: 54 · 2023: 66 · 2022: 83 · 2021: 64 · 2020: 96 · 2019: 106 · 2018: 98 · 2017: 110 · 2016: 114 · 2015: 100 · 2014: 80 · 2013: 1
FWCI
55.31
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institute of General Medical Sciences (GM68804, R01GM068804)
  • National Institute of Diabetes and Digestive and Kidney Diseases (U01DK089565)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Syndromes and Imprinting
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
DNA demethylation, DNA methylation, TET enzymes, base excision repair, DNA glycosylase, epigenetic regulation, developmental regulation, mammalian genomes
MeSH terms
Animals, Humans, Oxidoreductases, N-Demethylating, Promoter Regions, Genetic, Genome, DNA Methylation, 5-Methylcytosine

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