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Updated: May 21, 2025

Author Spotlight: Decoding RNA Methylation's Role in Pancreatic Cancer - A Single-Base Resolution Study
Published on: July 7, 2023
The multifaceted role of m5C RNA methylation in digestive system tumorigenesis
Xinjun Hu1, Yafeng Liu1, Shujun Zhang1
1Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, Henan, China.
Abstract:
5-Methylcytosine (m5C) is a widespread RNA methylation modification, wherein a methyl group is enzymatically transferred to specific RNA sites by methyltransferases, such as the NSUN family and DNMT2. The m5C modification not only impacts RNA structure and stability but also governs post-transcriptional regulation by influencing RNA transport, translation, and protein interactions. Recently, the functional importance of m5C in complex diseases, including cancer, has gained substantial attention. Increasing evidence highlights the critical roles of m5C in digestive system malignancies, where it contributes to tumor progression by modulating oncogene expression and regulating processes such as tumor cell proliferation, migration, invasion, and resistance to chemotherapy. Furthermore, m5C's involvement in non-coding RNAs reveals additional dimensions in elucidating their roles in cancer. This review summarizes recent advances in m5C RNA methylation research within digestive system tumors, focusing on its functional mechanisms, clinical significance, and potential applications. Specifically, it aims to explore m5C's role in tumor diagnosis, prognosis, and treatment, while proposing future directions to address current challenges and broaden its clinical utility.
Insights
5-Methylcytosine (m5C) RNA methylation is crucial in digestive cancers, affecting tumor progression and treatment. Understanding m5C mechanisms offers new diagnostic and therapeutic strategies for these malignancies.
Area of Science:
- Epigenetics
- Molecular Biology
- Oncology
Background:
- 5-Methylcytosine (m5C) is a key RNA modification impacting RNA function and post-transcriptional regulation.
- m5C dysregulation is increasingly linked to complex diseases, particularly cancers.
- Digestive system malignancies show critical roles for m5C in tumor progression.
Purpose of the Study:
- To review recent advances in m5C RNA methylation research in digestive system tumors.
- To focus on the functional mechanisms, clinical significance, and potential applications of m5C.
- To explore m5C's role in cancer diagnosis, prognosis, and treatment.
Main Methods:
- Literature review of recent studies on m5C RNA methylation.
- Analysis of functional mechanisms of m5C in cancer.
- Evaluation of clinical significance and therapeutic potential of m5C.
Main Results:
- m5C influences RNA structure, stability, and post-transcriptional regulation.
- m5C is implicated in modulating oncogene expression and key cancer processes like proliferation, migration, invasion, and chemoresistance.
- m5C's role in non-coding RNAs adds complexity to understanding cancer mechanisms.
Conclusions:
- m5C RNA methylation is a significant factor in digestive system tumor progression.
- m5C holds potential as a biomarker for diagnosis and prognosis.
- Targeting m5C pathways may offer novel therapeutic strategies for digestive cancers.
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