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Updated: Jun 12, 2026

Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
More questions than answers about the potential anticancer agents: DNA methylation inhibitors
Xiao-ping Zou1, Bin Zhang, Ying Liu
1Department of Gastroenterology, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing, Jiangsu 210008, China. zouxiaoping795@hotmail.com
Objective:
To review the emerging role of DNA methylation inhibitors in cancer therapy and make a serious reflection on their current status and future perspectives.
Data Sources:
The data used in the present article were mainly from PubMed with relevant English papers published from April 1988 to January 2010. The search terms were "DNA methylation", "demethylation" and "cancer".
Study Selection:
Studies involved in the DNA methylation in carcinogenesis and DNA methylation inhibitors for cancer therapy were selected. The original milestone articles were also included.
Results:
Treatment with DNA methylation inhibitors leads to demethylation of a panel of tumour suppressor genes and reverse the expression in different tumors, thus making them potential cancer therapeutics. However, we cannot be very optimistic about their future perspectives because we still have a long way to go before they function well like specific targeted anticancer drugs as we expected.
Conclusion:
The best way forward is to further clarify the exact methylation profiles of tumors and to develop novel agents targeting the specific genes.
Insights
DNA methylation inhibitors show promise in cancer therapy by reversing tumor suppressor gene expression. However, further research is needed to optimize their effectiveness as targeted anticancer drugs.
Area of Science:
- Oncology
- Epigenetics
- Pharmacology
Background:
- DNA methylation plays a crucial role in cancer development.
- Aberrant DNA methylation patterns are hallmarks of various cancers.
- Targeting epigenetic modifications is a growing area in cancer research.
Purpose of the Study:
- To review the current status and future perspectives of DNA methylation inhibitors in cancer therapy.
- To critically assess the emerging role of these agents in clinical practice.
Main Methods:
- A comprehensive literature search was conducted using PubMed.
- Relevant English papers published from April 1988 to January 2010 were included.
- Search terms included "DNA methylation", "demethylation", and "cancer".
Main Results:
- DNA methylation inhibitors can induce demethylation of tumor suppressor genes, restoring their expression in different tumor types.
- These agents demonstrate potential as cancer therapeutics.
- Significant challenges remain in achieving the specificity and efficacy comparable to targeted anticancer drugs.
Conclusions:
- Further elucidation of precise tumor methylation profiles is essential.
- Development of novel agents targeting specific genes holds promise for future cancer therapy.
- Optimizing DNA methylation inhibitors requires a deeper understanding of their mechanisms and clinical applications.
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