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Updated: Aug 9, 2025

Characterizing RNA Modifications in Single Neurons Using Mass Spectrometry
Published on: April 21, 2022
Emerging roles of m6A RNA modification in cancer therapeutic resistance
Wei-Wei Liu1,2, Zhong-Yuan Zhang3, Fei Wang4
1Department of Laboratory Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
Abstract:
Marvelous advancements have been made in cancer therapies to improve clinical outcomes over the years. However, therapeutic resistance has always been a major difficulty in cancer therapy, with extremely complicated mechanisms remain elusive. N6-methyladenosine (m6A) RNA modification, a hotspot in epigenetics, has gained growing attention as a potential determinant of therapeutic resistance. As the most prevalent RNA modification, m6A is involved in every links of RNA metabolism, including RNA splicing, nuclear export, translation and stability. Three kinds of regulators, "writer" (methyltransferase), "eraser" (demethylase) and "reader" (m6A binding proteins), together orchestrate the dynamic and reversible process of m6A modification. Herein, we primarily reviewed the regulatory mechanisms of m6A in therapeutic resistance, including chemotherapy, targeted therapy, radiotherapy and immunotherapy. Then we discussed the clinical potential of m6A modification to overcome resistance and optimize cancer therapy. Additionally, we proposed existing problems in current research and prospects for future research.
Insights
N6-methyladenosine (m6A) RNA modification is a key epigenetic factor influencing cancer therapy resistance. Understanding m6A regulators offers potential strategies to overcome resistance and improve cancer treatment outcomes.
Area of Science:
- Epigenetics
- Molecular Biology
- Oncology
Background:
- Cancer therapies have advanced, but therapeutic resistance remains a significant challenge.
- N6-methyladenosine (m6A) RNA modification is increasingly recognized as a critical factor in cancer therapeutic resistance.
- m6A modification influences multiple RNA metabolic processes, including splicing, nuclear export, translation, and stability.
Purpose of the Study:
- To review the regulatory mechanisms of m6A in various cancer therapies, including chemotherapy, targeted therapy, radiotherapy, and immunotherapy.
- To discuss the clinical potential of targeting m6A modification to overcome therapeutic resistance.
- To identify current research challenges and future prospects in the field of m6A and cancer therapy.
Main Methods:
- Literature review focusing on m6A RNA modification and its role in cancer therapeutic resistance.
- Analysis of the roles of m6A 'writers', 'erasers', and 'readers' in modulating resistance.
- Discussion of clinical implications and future research directions.
Main Results:
- m6A modification, regulated by writers, erasers, and readers, plays a crucial role in resistance to diverse cancer treatments.
- m6A regulators are implicated in chemotherapy, targeted therapy, radiotherapy, and immunotherapy resistance.
- Evidence suggests m6A modification can be a target to enhance cancer therapy efficacy.
Conclusions:
- m6A RNA modification is a pivotal epigenetic mechanism influencing cancer therapeutic resistance.
- Targeting m6A regulators presents a promising avenue for developing novel strategies to overcome treatment resistance.
- Further research is needed to fully elucidate m6A's role and translate findings into clinical applications.
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