PreprintCited by 1,040Epigenetics and DNA MethylationGenomics and Chromatin DynamicsCancer-related gene regulation

Role of TET enzymes in DNA methylation, development, and cancer

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Rasmussen, Kasper Dindler, Helin, Kristian·2016·Genes & Development

Abstract

The pattern of DNA methylation at cytosine bases in the genome is tightly linked to gene expression, and DNA methylation abnormalities are often observed in diseases. The ten eleven translocation (TET) enzymes oxidize 5-methylcytosines (5mCs) and promote locus-specific reversal of DNA methylation. TET genes, and especially TET2 , are frequently mutated in various cancers, but how the TET proteins contribute to prevent the onset and maintenance of these malignancies is largely unknown. Here, we highlight recent advances in understanding the physiological function of the TET proteins and their role in regulating DNA methylation and transcription. In addition, we discuss some of the key outstanding questions in the field.

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Crossref · 10.1101/gad.276568.115

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  • 2OGO catalyze specific hydroxylation of substrates, which leads to demethylations via other catalytic cycles or downstream pathway involving thymine-DNA-glycosylase.

    “Generally, 2OGO catalyze specific hydroxylation of substrates, which, in turn, leads to demethylations via other catalytic cycles or downstream pathway involving thymine-DNA-glycosylase, which catalyzed base excision with DNA base excision repair [101,120].”

    From Vitamin C-Sources, Physiological Role, Kinetics, Deficiency, Use, Toxicity, and Determination (2021) · cites this paper as [120]

    The section on TET proteins identifies 2-oxoglutarate as a cofactor, and Figure 2 describes TET oxidation of methylated cytosine followed by TDG excision and base excision repair to restore unmodified cytosine. This supports the pathway for TET enzymes, but the paper does not establish it as a general outcome of hydroxylation by all 2-oxoglutarate-dependent oxygenases. The same section also notes that much observable hydroxymethylated cytosine remains stable rather than proceeding to demethylation; page numbers were not available in our copy. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Myeloid and lymphoid cancers often have somatic TET2 mutation or loss.

    “TET2 is frequently mutated or lost somatically in both myeloid and lymphoid malignancies63,64.”

    From Targeting cancer vulnerabilities with high-dose vitamin C (2019) · cites this paper as [63]

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Authors
Rasmussen, K. D., & Helin, K.
Affiliations
University of Copenhagen (DK)
Corresponding author
Helin, Kristian
Venue
Genes & Development
Published
2016-04-01
Volume
30
Issue
7
Pages
733-750
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2325267338
Cited by
1,040
References
162
Citations by year
2026: 56 · 2025: 87 · 2024: 116 · 2023: 100 · 2022: 135 · 2021: 141 · 2020: 131 · 2019: 97 · 2018: 83 · 2017: 60 · 2016: 30 · 2012: 1
Type
posted content
Language
en
Open access
Licence
cc-by-nc
Locations
  • Genes & Development (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, cc-by-nc)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Danish Medical Research Council (1333-00120B)
  • European Research Council (294666_DNAMET)
  • Danish Cancer Society
  • Danish National Research Foundation (DNRF 82)
  • Danish Council for Strategic Research
  • Novo Nordisk Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cancer-related gene regulation
Keywords
TET enzymes, DNA methylation, 5-methylcytosine oxidation, TET2, demethylation, cancer, developmental regulation, transcriptional regulation, gene expression
MeSH terms
Animals, Cytosine, DNA-Binding Proteins, Humans, Neoplasms, Oxidation-Reduction, Proto-Oncogene Proteins, Gene Expression Regulation, Neoplastic, DNA Methylation, Epigenesis, Genetic, Dioxygenases

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