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Enhancer RNA Transcriptome-Wide Association Study Reveals a Distinctive Class of Pan-Cancer Susceptibility eRNAs.

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This summary is machine-generated.

This study reveals enhancer RNAs (eRNAs) link genetic variants to cancer risk. Researchers identified novel eRNAs crucial for cancer cell growth, offering new targets for cancer susceptibility gene discovery.

Keywords:
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Area of Science:

  • Genomics
  • Cancer Biology
  • Molecular Genetics

Background:

  • Many cancer risk variants are in enhancer regions, lacking molecular explanation.
  • Enhancer RNAs (eRNAs) are emerging as key regulators of gene expression.

Purpose of the Study:

  • To create a comprehensive atlas of eRNA-mediated genetic effects.
  • To investigate the role of eRNAs in cancer susceptibility.

Main Methods:

  • Constructed an eRNA atlas from 28,033 RNA sequencing samples (11,606 individuals).
  • Identified eRNA quantitative trait loci (eRNA-QTLs) and their association with transcription factor binding motifs.
  • Performed a pan-cancer eRNA-based transcriptome-wide association study across 23 cancer types.

Main Results:

  • Identified 21,073 eRNA-QTLs, with frequent alteration of transcription factor binding motifs.
  • Found strong colocalization between 28.48% of cancer risk variants and eRNA-QTLs.
  • Discovered 626 cancer susceptibility eRNAs, with many targeting previously overlooked genes essential for cancer proliferation.

Conclusions:

  • eRNAs play a critical role in modulating cancer risk.
  • This study identifies novel cancer susceptibility genes and provides a framework for understanding cancer etiology.
  • Experimental validation confirmed the role of CCND1e and SNAPC1e in suppressing prostate cancer cell proliferation.