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Updated: Apr 1, 2026

A Nonsequencing Approach for the Rapid Detection of RNA Editing
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Elevated RNA Editing Activity Is a Major Contributor to Transcriptomic Diversity in Tumors

Nurit Paz-Yaacov1, Lily Bazak1, Ilana Buchumenski1

  • 1The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 52900, Israel.

Cell Reports
|October 7, 2015
PubMed

Insights

RNA editing, a process altering messenger RNA, is significantly changed in most cancers. This RNA modification is linked to patient survival and may offer new diagnostic and therapeutic targets in cancer research.

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • Genomic mutations are established drivers of cancer.
  • RNA editing dynamically modifies mRNA sequences, presenting a layer of genetic alteration beyond DNA.
  • Previous studies have reported isolated instances of RNA editing changes in cancer.

Purpose of the Study:

  • To conduct a comprehensive transcriptome-wide analysis of RNA editing across diverse cancer types.
  • To investigate alterations in A-to-I RNA editing and its mediating enzymes in cancer.
  • To explore the association between RNA editing activity and patient survival.

Main Methods:

  • Transcriptome-wide characterization of RNA editing.
  • Analysis of hundreds of cancer samples from multiple tissue types.
  • Statistical association of RNA editing levels with patient survival data.

Main Results:

  • A-to-I RNA editing and its associated enzymes are significantly altered, predominantly elevated, in most cancer types studied.
  • Increased RNA editing activity correlates with improved patient survival.
  • Identified potential RNA mutations that may act as cancer drivers.

Conclusions:

  • RNA editing is a widespread phenomenon in cancer, distinct from somatic DNA mutations.
  • Altered RNA editing patterns, particularly elevated A-to-I editing, are prevalent across various cancers.
  • RNA editing alterations represent promising novel targets for cancer diagnostics and therapeutics.

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