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Pan-cancer Analysis of MC Regulator Genes Reveals Consistent Epigenetic Landscape Changes in Multiple Cancers

Overview
Publisher Biomed Central
Date 2021 Jul 30
PMID 34325709
Citations 16
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Abstract

Background: 5-Methylcytosine (mC) is a reversible modification to both DNA and various cellular RNAs. However, its roles in developing human cancers are poorly understood, including the effects of mutant mC regulators and the outcomes of modified nucleobases in RNAs.

Methods: Based on The Cancer Genome Atlas (TCGA) database, we uncovered that mutations and copy number variations (CNVs) of mC regulatory genes were significantly correlated across many cancer types. We then assessed the correlation between the expression of individual mC regulators and the activity of related hallmark pathways of cancers.

Results: After validating mC regulators' expression based on their contributions to cancer development and progression, we observed their upregulation within tumor-specific processes. Notably, our research connected aberrant alterations to mC regulatory genes with poor clinical outcomes among various tumors that may drive cancer pathogenesis and/or survival.

Conclusion: Our results offered strong evidence and clinical implications for the involvement of mC regulators.

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