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Updated: Mar 6, 2026
Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
Development of fluorescent methods for DNA methyltransferase assay
Yueying Li1, Xiaoran Zou1, Fei Ma1
1College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, People's Republic of China.
Accurate detection of DNA methyltransferase (MTase) activity is vital for disease diagnosis. This review highlights recent fluorescent methods, offering simpler and more sensitive assays for DNA MTase activity, crucial for biomedical research and clinical applications.
Area of Science:
- Biochemistry
- Molecular Biology
- Analytical Chemistry
Background:
- DNA methylation, regulated by DNA methyltransferase (MTase), is essential for gene transcription, cell growth, and proliferation.
- Aberrant DNA MTase activity is linked to human diseases, particularly cancers, necessitating precise activity detection.
- Conventional DNA MTase assays are often laborious and time-consuming, limiting their widespread clinical use.
Purpose of the Study:
- To review recent advancements in fluorescent-based methods for assaying DNA methyltransferase (MTase) activity.
- To highlight the advantages of fluorescent assays, including simplicity and high sensitivity, over traditional methods.
- To discuss emerging amplification-free and amplification-assisted fluorescent assays for DNA MTase detection.
Main Methods:
- Summarizing recent literature on fluorescent probes and techniques for DNA MTase activity measurement.
- Categorizing methods into amplification-free and amplification-assisted fluorescent assays.
- Analyzing the principles, advantages, and limitations of various fluorescent detection strategies.
Main Results:
- Fluorescent methods offer a sensitive, simple, and rapid alternative to conventional DNA MTase assays.
- Both amplification-free and amplification-assisted fluorescent assays have shown significant progress.
- These methods enable more efficient monitoring of DNA MTase activity in various biological contexts.
Conclusions:
- Fluorescent assays represent a significant breakthrough in the sensitive and efficient detection of DNA MTase activity.
- Continued development in this area promises improved tools for biomedical research, diagnostics, and therapeutic strategies.
- Addressing current challenges will further enhance the utility and application of these advanced assays.
