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Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
The Functions of the Demethylase JMJD3 in Cancer
Anna Sanchez1,2, Fatma Zohra Houfaf Khoufaf1,2, Mouhamed Idrissou1,2
1Department of Oncogenetics, Centre Jean Perrin, CBRV, 63001 Clermont-Ferrand, France.
Abstract:
Cancer is a major cause of death worldwide. Epigenetic changes in response to external (diet, sports activities, etc.) and internal events are increasingly implicated in tumor initiation and progression. In this review, we focused on post-translational changes in histones and, more particularly, the tri methylation of lysine from histone 3 (H3K27me3) mark, a repressive epigenetic mark often under- or overexpressed in a wide range of cancers. Two actors regulate H3K27 methylation: Jumonji Domain-Containing Protein 3 demethylase (JMJD3) and Enhancer of zeste homolog 2 (EZH2) methyltransferase. A number of studies have highlighted the deregulation of these actors, which is why this scientific review will focus on the role of JMJD3 and, consequently, H3K27me3 in cancer development. Data on JMJD3's involvement in cancer are classified by cancer type: nervous system, prostate, blood, colorectal, breast, lung, liver, ovarian, and gastric cancers.
Insights
Epigenetic changes, specifically histone methylation (H3K27me3), are crucial in cancer. This review examines the role of JMJD3 and EZH2 in regulating these epigenetic marks and their impact on various cancer types.
Area of Science:
- Oncology
- Epigenetics
- Molecular Biology
Background:
- Cancer remains a leading global cause of mortality.
- Epigenetic modifications, influenced by external and internal factors, play a significant role in cancer initiation and progression.
- Histone modifications, particularly histone 3 lysine 27 trimethylation (H3K27me3), are frequently altered in various cancers.
Purpose of the Study:
- This review focuses on the epigenetic mark H3K27me3 and its regulators.
- The primary objective is to explore the role of Jumonji Domain-Containing Protein 3 (JMJD3) in cancer development.
- To analyze the implications of JMJD3 and H3K27me3 dysregulation across diverse cancer types.
Main Methods:
- Literature review of scientific studies on JMJD3, EZH2, and H3K27me3 in cancer.
- Categorization of data based on cancer type to elucidate specific roles.
- Synthesis of current knowledge on the interplay between epigenetic regulators and tumorigenesis.
Main Results:
- H3K27me3 is a repressive epigenetic mark often dysregulated in cancer.
- JMJD3 and Enhancer of zeste homolog 2 (EZH2) are key regulators of H3K27 methylation.
- Deregulation of JMJD3 is implicated in the development of numerous cancers, including nervous system, prostate, blood, colorectal, breast, lung, liver, ovarian, and gastric cancers.
Conclusions:
- JMJD3 and its associated epigenetic mark H3K27me3 are critical factors in cancer development.
- Understanding the role of JMJD3 in H3K27 methylation offers potential therapeutic targets for cancer treatment.
- Further research into JMJD3's function across different cancer types is warranted.
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