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Expression and Potential Biomarkers of Regulators for M7G RNA Modification in Gliomas

Zhen Chen1, Zhe Zhang1, Wei Ding2

  • 1Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.

Frontiers in Neurology
|May 26, 2022
PubMed

Insights

N7 methylguanosine (m7G) RNA methylation regulators are dysregulated in gliomas, impacting patient prognosis. A new risk model using three m7G regulators can predict glioma patient survival outcomes.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Gliomas are primary malignant brain tumors with poor outcomes.
  • N7 methylguanosine (m7G) RNA dysmethylation is implicated in cancer development.
  • The role of m7G RNA methylation regulators in gliomas is largely unknown.

Purpose of the Study:

  • To investigate the expression patterns of 31 m7G RNA methylation regulators in gliomas.
  • To determine the prognostic significance of these regulators in glioma patients.
  • To develop a risk model for predicting glioma prognosis based on m7G regulators.

Main Methods:

  • Systematic analysis of clinical and mRNA gene expression data from TCGA and GEO databases.
  • Consensus clustering to stratify glioma patients into subgroups.
  • Development and validation of a risk score model using m7G methylation regulators.

Main Results:

  • 17 out of 31 m7G RNA methylation regulators were significantly upregulated in gliomas.
  • Consensus clustering identified two subgroups; Cluster 2 showed poorer prognosis and higher histological grade, enriched in cancer pathways.
  • A risk model based on three m7G regulators stratified patients into high-risk and low-risk groups with significantly different overall survival (OS).

Conclusions:

  • m7G RNA methylation regulators are dysregulated in gliomas and associated with tumor progression.
  • The developed risk score is an independent prognostic factor for glioma patients.
  • Targeting m7G RNA methylation may offer potential therapeutic strategies for gliomas.
Keywords:
N7-methylguanosinebioinformaticsepigeneticsgliomasprognostic signature

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