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Updated: Feb 23, 2026

Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
The role of TET-mediated DNA hydroxymethylation in prostate cancer
E Smeets1, A G Lynch2, S Prekovic1
1Molecular Endocrinology Laboratory, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.
Abstract:
Ten-eleven translocation (TET) proteins are recently characterized dioxygenases that regulate demethylation by oxidizing 5-methylcytosine to 5-hydroxymethylcytosine and further derivatives. The recent finding that 5hmC is also a stable and independent epigenetic modification indicates that these proteins play an important role in diverse physiological and pathological processes such as neural and tumor development. Both the genomic distribution of (hydroxy)methylation and the expression and activity of TET proteins are dysregulated in a wide range of cancers including prostate cancer. Up to now it is still unknown how changes in TET and 5(h)mC profiles are related to the pathogenesis of prostate cancer. In this review, we explore recent advances in the current understanding of how TET expression and function are regulated in development and cancer. Furthermore, we look at the impact on 5hmC in prostate cancer and the potential underlying mechanisms. Finally, we tried to summarize the latest techniques for detecting and quantifying global and locus-specific 5hmC levels of genomic DNA.
Insights
Ten-eleven translocation (TET) proteins regulate DNA demethylation, impacting neural and tumor development. This review explores TETs and 5-hydroxymethylcytosine (5hmC) in prostate cancer pathogenesis and detection methods.
Area of Science:
- Epigenetics
- Molecular Biology
- Oncology
Background:
- Ten-eleven translocation (TET) proteins are dioxygenases involved in DNA demethylation.
- They catalyze the oxidation of 5-methylcytosine to 5-hydroxymethylcytosine (5hmC), a stable epigenetic mark.
- Dysregulation of TET proteins and 5hmC profiles is observed in various cancers, including prostate cancer.
Purpose of the Study:
- To review current understanding of TET expression and function regulation in development and cancer.
- To examine the impact of 5hmC on prostate cancer.
- To summarize methods for detecting and quantifying 5hmC levels.
Main Methods:
- Literature review of recent advances in TET protein function and epigenetic modifications.
- Analysis of the role of 5hmC in prostate cancer pathogenesis.
- Compilation of techniques for 5hmC detection and quantification.
Main Results:
- TET proteins and 5hmC play critical roles in physiological and pathological processes, including neural and tumor development.
- Altered TET expression and 5hmC distribution are linked to prostate cancer.
- Various methods exist for assessing global and locus-specific 5hmC levels.
Conclusions:
- TET proteins and 5hmC are crucial epigenetic regulators with significant implications in prostate cancer.
- Further research is needed to fully elucidate the mechanisms linking TETs, 5hmC, and prostate cancer.
- Advances in detection techniques facilitate the study of 5hmC in cancer research.
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