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Cancer Cell International
Published in: Cancer Cell International 1/2021

Open Access 01-12-2021 | Primary research

Comprehensive analysis of the transcriptome‐wide m6A methylome in invasive malignant pleomorphic adenoma

Authors: Zhenyuan Han, Biao Yang, Qin Wang, Yuhua Hu, Yuqiong Wu, Zhen Tian

Published in: Cancer Cell International | Issue 1/2021

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Abstract

Background

Invasive malignant pleomorphic adenoma (IMPA) is a highly invasive parotid gland tumor and lacks effective therapy. N6-Methyladenosine (m6A) is the most prevalent post-transcriptional modification of mRNAs in eukaryotes and plays an important role in the pathogenesis of multiple tumors. However, the significance of m6A-modified mRNAs in IMPA has not been elucidated to date. Hence, in this study, we attempted to profile the effect of IMPA in terms of m6A methylation in mRNA.

Methods

Methylated RNA immunoprecipitation with next-generation sequencing (MeRIP-seq) and RNA sequencing (RNA-seq) were utilized to acquire the first transcriptome-wide profiling of the m6A methylome map in IMPA followed by bioinformatics analysis.

Results

In this study, we obtained m6A methylation maps of IMPA samples and normal adjacent tissues through MeRIP-seq. In total, 25,490 m6A peaks associated with 13,735 genes were detected in the IMPA group, whereas 33,930 m6A peaks associated with 18,063 genes were detected in the control group. Peaks were primarily enriched within coding regions and near stop codons with AAACC and GGAC motifs. Moreover, functional enrichment analysis demonstrated that m6A-containing genes were significantly enriched in cancer and metabolism relevant pathways. Furthermore, we identified a relationship between the m6A methylome and the RNA transcriptome, indicating a mechanism by which m6A modulates gene expression.

Conclusions

Our study is the first to provide comprehensive and transcriptome-wide profiles to determine the potential roles played by m6A methylation in IMPA. These results may open new avenues for in-depth research elucidating the m6A topology of IMPA and the molecular mechanisms governing the formation and progression of IMPA.
Appendix
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Metadata
Title
Comprehensive analysis of the transcriptome‐wide m6A methylome in invasive malignant pleomorphic adenoma
Authors
Zhenyuan Han
Biao Yang
Qin Wang
Yuhua Hu
Yuqiong Wu
Zhen Tian
Publication date
01-12-2021
Publisher
BioMed Central
Published in
Cancer Cell International / Issue 1/2021
Electronic ISSN: 1475-2867
DOI
https://doi.org/10.1186/s12935-021-01839-6

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