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Role of RNA 5‑methylcytosine modification in cancer: Insights from coding and non‑coding RNAs (Review)
Qin Jiang1, Yi Gong1, Mimi Zhai2
1Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China.
Abstract:
RNA modifications serve notable roles in various biological processes, with >170 identified modifications. These modifications increase the complexity of RNA species by influencing their tertiary structure, biogenesis, localization and function. The combination of high‑throughput detection technologies and corresponding analytical workflows provides a precise 5‑methylcytosine (m5C) landscape, helping to elucidate its biological functions. The m5C methylation occurs in coding and non‑coding RNAs and is dynamically regulated by related enzymes, including methyltransferases (writers), demethylases (erasers) and binding proteins (readers). m5C is involved in various physiological functions and regulates the progression of numerous types of tumors. Aberrant m5C RNA modifications contribute to the proliferation, migration and drug resistance of cancer cells, suggesting that targeting aberrant posttranscriptional modifications in cancer cells may hold promise as an efficient therapy for tumors. The present review systematically outlines the regulatory components of m5C modification, emphasizing their dynamic regulatory roles in RNA metabolism and function. The mechanisms by which m5C modification promotes tumor progression through the regulation of cancer cell proliferation, migration and drug resistance are summarized. The present review proposes that targeting abnormal m5C modifications could serve as a novel strategy for cancer treatment, offering new research directions in oncology.
Insights
RNA modifications, like 5-methylcytosine (m5C), are crucial in biology and cancer. Targeting aberrant m5C RNA modifications offers a promising new strategy for effective cancer therapy.
Area of Science:
- Molecular Biology
- Epigenetics
- Oncology
Background:
- Over 170 RNA modifications exist, influencing RNA structure, function, and biological processes.
- 5-methylcytosine (m5C) is a key RNA modification found in coding and non-coding RNAs.
- m5C is dynamically regulated by methyltransferases (writers), demethylases (erasers), and binding proteins (readers).
Purpose of the Study:
- To systematically review the regulatory components of m5C modification.
- To emphasize the dynamic regulatory roles of m5C in RNA metabolism and function.
- To summarize mechanisms of m5C in tumor progression and explore its therapeutic potential.
Main Methods:
- Review of existing literature on m5C RNA modifications.
- Analysis of high-throughput detection technologies and analytical workflows for m5C.
- Synthesis of data on m5C's role in cancer cell proliferation, migration, and drug resistance.
Main Results:
- m5C modifications are involved in various physiological functions and regulate tumor progression.
- Aberrant m5C contributes to cancer cell proliferation, migration, and drug resistance.
- m5C dysregulation is implicated in numerous cancer types.
Conclusions:
- Targeting aberrant m5C RNA modifications may represent an efficient therapeutic strategy for tumors.
- m5C modification presents a novel target for cancer treatment.
- Further research into abnormal m5C modifications can open new avenues in oncology.
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