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Published on: January 31, 2025
Epigenetic modifications as regulatory elements of autophagy in cancer
Xinbing Sui1, Jing Zhu2, Jichun Zhou3
1Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China; Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China.
Abstract:
Epigenetic modifications have been considered as hallmarks of cancer and play an important role in tumor initiation and development. Epigenetic mechanisms, including DNA methylation, histone modifications, and microRNAs, may regulate cell cycle and apoptosis, as well as macroautophagy (hereafter referred to as autophagy). Autophagy, as a crucial cellular homeostatic mechanism, performs a dual role, having pro-survival or pro-death properties. A variety of signaling pathways including epigenetic control have been implicated in the upregulation or downregulation of autophagy. However, the role of epigenetic regulation in autophagy is still less well acknowledged. Recent studies have linked epigenetic control to the autophagic process. Some epigenetic modifiers are also involved in the regulation of autophagy and potentiate the efficacy of traditional therapeutics. Thus, understanding the novel functions of epigenetic control in autophagy may allow us to develop potential therapeutic approaches for cancer treatment.
Insights
Epigenetic modifications regulate autophagy, a key cellular process. Understanding this link offers new therapeutic strategies for cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Cellular Biology
Background:
- Epigenetic modifications (DNA methylation, histone modifications, microRNAs) are hallmarks of cancer.
- These mechanisms influence crucial cellular processes like cell cycle, apoptosis, and autophagy.
- Autophagy, a vital homeostatic mechanism, has a dual role in cell survival and death.
Purpose of the Study:
- To explore the role of epigenetic regulation in controlling autophagy.
- To highlight the connection between epigenetic modifiers and autophagic processes.
- To investigate the potential of targeting epigenetic control of autophagy for cancer therapy.
Main Methods:
- Review of recent scientific literature linking epigenetic control and autophagy.
- Analysis of studies on epigenetic modifiers involved in autophagy regulation.
- Examination of how epigenetic regulation impacts the efficacy of cancer therapeutics.
Main Results:
- Epigenetic mechanisms are increasingly recognized for their role in regulating autophagy.
- Specific epigenetic modifiers directly influence the autophagic pathway.
- Targeting epigenetic regulation of autophagy may enhance traditional cancer therapies.
Conclusions:
- Epigenetic control of autophagy is a significant, yet underappreciated, area in cancer research.
- Further understanding of these novel functions can lead to innovative cancer treatment approaches.
- Epigenetic modifiers hold promise for potentiating the efficacy of existing cancer therapeutics.
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