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Updated: Jul 12, 2025
Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
Insights into DNMT1 and programmed cell death in diseases
Lan Yan1, Qi Geng1, Zhiwen Cao1
1Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China.
Abstract:
DNMT1 (DNA methyltransferase 1) is the predominant member of the DNMT family and the most abundant DNMT in various cell types. It functions as a maintenance DNMT and is involved in various diseases, including cancer and nervous system diseases. Programmed cell death (PCD) is a fundamental mechanism that regulates cell proliferation and maintains the development and homeostasis of multicellular organisms. DNMT1 plays a regulatory role in various types of PCD, including apoptosis, autophagy, necroptosis, ferroptosis, and others. DNMT1 is closely associated with the development of various diseases by regulating key genes and pathways involved in PCD, including caspase 3/7 activities in apoptosis, Beclin 1, LC3, and some autophagy-related proteins in autophagy, glutathione peroxidase 4 (GPX4) and nuclear receptor coactivator 4 (NCOA4) in ferroptosis, and receptor-interacting protein kinase 1-receptor-interacting protein kinase 3-mixed lineage kinase domain-like protein (RIPK1-RIPK3-MLKL) in necroptosis. Our study summarizes the regulatory relationship between DNMT1 and different types of PCD in various diseases and discusses the potential of DNMT1 as a common regulatory hub in multiple types of PCD, offering a perspective for therapeutic approaches in disease.
Insights
DNA methyltransferase 1 (DNMT1) regulates multiple programmed cell death types, impacting diseases like cancer. Understanding DNMT1
Area of Science:
- Epigenetics and Molecular Biology
- Cellular Biology
- Disease Mechanisms
Background:
- DNA methyltransferase 1 (DNMT1) is a key enzyme in DNA methylation and is implicated in various diseases.
- Programmed cell death (PCD) is crucial for organismal development and homeostasis.
- Dysregulation of PCD contributes to diseases such as cancer and neurological disorders.
Purpose of the Study:
- To summarize the regulatory role of DNMT1 in diverse PCD pathways.
- To explore DNMT1's association with disease development through PCD regulation.
- To highlight DNMT1 as a potential therapeutic target in multiple diseases.
Main Methods:
- Literature review and synthesis of existing research on DNMT1 and PCD.
- Analysis of DNMT1's involvement in apoptosis, autophagy, necroptosis, and ferroptosis.
- Examination of key genes and pathways regulated by DNMT1 in different PCD types.
Main Results:
- DNMT1 plays a significant regulatory role in apoptosis, autophagy, necroptosis, and ferroptosis.
- DNMT1 influences PCD by modulating critical proteins and pathways, including caspase 3/7, Beclin 1, LC3, GPX4, NCOA4, and the RIPK1-RIPK3-MLKL axis.
- DNMT1's dysregulation is linked to the pathogenesis of various diseases.
Conclusions:
- DNMT1 acts as a common regulatory hub across multiple PCD pathways.
- Targeting DNMT1 offers a potential therapeutic strategy for a range of diseases.
- Further research into DNMT1's role in PCD can provide new disease treatment perspectives.
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