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Updated: Nov 20, 2025

Efficient Purification and LC-MS/MS-based Assay Development for Ten-Eleven Translocation-2 5-Methylcytosine Dioxygenase
Published on: October 15, 2018
Roles and Regulations of TET Enzymes in Solid Tumors
Julie K Bray1, Meelad M Dawlaty2, Amit Verma2
1Sheikh Ahmed Center for Pancreatic Cancer Research, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Abstract:
The mechanisms governing the methylome profile of tumor suppressors and oncogenes have expanded with the discovery of oxidized states of 5-methylcytosine (5mC). Ten-eleven translocation (TET) enzymes are a family of dioxygenases that iteratively catalyze 5mC oxidation and promote cytosine demethylation, thereby creating a dynamic global and local methylation landscape. While the catalytic function of TET enzymes during stem cell differentiation and development have been well studied, less is known about the multifaceted roles of TET enzymes during carcinogenesis. This review outlines several tiers of TET regulation and overviews how TET deregulation promotes a cancer phenotype. Defining the tissue-specific and context-dependent roles of TET enzymes will deepen our understanding of the epigenetic perturbations that promote or inhibit carcinogenesis.
Insights
Ten-eleven translocation (TET) enzymes regulate DNA methylation dynamics. Deregulation of TET enzymes contributes to cancer development, highlighting their crucial role in carcinogenesis.
Area of Science:
- Epigenetics
- Cancer Biology
- Molecular Oncology
Background:
- The DNA methylome is crucial for gene regulation, impacting tumor suppressors and oncogenes.
- Oxidized forms of 5-methylcytosine (5mC) have expanded our understanding of methylome regulation.
- Ten-eleven translocation (TET) enzymes catalyze 5mC oxidation, influencing DNA demethylation and methylation dynamics.
Purpose of the Study:
- To review the regulatory mechanisms of TET enzymes.
- To explore the multifaceted roles of TET enzymes in carcinogenesis.
- To understand how TET deregulation contributes to a cancer phenotype.
Main Methods:
- Literature review of TET enzyme function in cancer.
- Analysis of TET enzyme regulation tiers.
- Overview of TET deregulation in carcinogenesis.
Main Results:
- TET enzymes play a dynamic role in the global and local methylation landscape.
- TET deregulation is implicated in promoting cancer phenotypes.
- Understanding TET roles is key to epigenetic insights in carcinogenesis.
Conclusions:
- TET enzymes are critical epigenetic regulators with significant roles in cancer.
- Further research into tissue-specific and context-dependent TET functions is needed.
- Defining these roles will advance our understanding of epigenetic perturbations in cancer.
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