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Discovering the key genes and important DNA methylation regions in breast cancer

Yan-Ni Cao1, Qian-Zhong Li2,3, Yu-Xian Liu1

  • 1Laboratory of Theoretical Biophysics, School of Physical Science and Technology, Inner Mongolia University, No.235 West Daxue Street, Saihan District, Hohhot, 010021, P.R. China.

Hereditas
|January 22, 2022
PubMed
Abstract

Insights

This study reveals that DNA methylation in key gene regions significantly impacts gene expression in breast cancer. Researchers identified 17 tumor suppressor genes and 1 oncogene as potential biomarkers for this disease.

Area of Science:

  • Oncology
  • Epigenetics
  • Genomics

Background:

  • Breast cancer is the most common malignancy in women globally.
  • The role of abnormal DNA methylation in breast cancer gene expression remains incompletely understood.
  • Identifying DNA methylation-related therapeutic targets is crucial for advancing breast cancer treatment.

Purpose of the Study:

  • To investigate the relationship between DNA methylation distribution and gene expression levels in breast cancer.
  • To identify key genes and DNA methylation regions associated with breast cancer prognosis.
  • To explore potential DNA methylation biomarkers for breast cancer diagnosis and therapy.

Main Methods:

  • Analysis of DNA methylation distribution and gene expression profiles in breast cancer tissues and adjacent normal tissues.
  • Correlation analysis between DNA methylation patterns in key genomic regions and gene expression levels.
  • Survival analysis using clinical data to validate prognostic gene markers.

Main Results:

  • A significant correlation was observed between DNA methylation in key regions and altered gene expression in breast cancer.
  • Eighteen key genes, including 17 tumor suppressor genes (TSGs) and 1 oncogene, were identified as prognostic markers.
  • Specific DNA methylation regions implicated in the development of breast cancer were pinpointed within these key genes.

Conclusions:

  • Seventeen tumor suppressor genes and one oncogene, regulated by DNA methylation in key regions, are proposed as potential breast cancer biomarkers.
  • These findings support the exploration of DNA methylation biomarkers as novel therapeutic targets for breast cancer.
  • The identified genes and methylation patterns offer insights into the epigenetic mechanisms driving breast cancer progression.
Keywords:
BiomarkerBreast cancerDNA methylationOncogeneTumor suppressor gene

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