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[Aberrant DNA methylation and drug resistance of tumor cells]

Si Xinxin1, Sun Yujie1

  • 1Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Cell Biology, School of Basic Medical Sciences, Nan-jing Medical University, Nanjing 210029, China.

Yi Chuan = Hereditas
|May 22, 2014
PubMed

Insights

Epigenetic changes, specifically DNA methylation, are increasingly recognized as key drivers of cancer drug resistance. Aberrant DNA methylation patterns in tumor cells contribute significantly to treatment failure, necessitating further research into these mechanisms.

Area of Science:

  • Oncology
  • Epigenetics
  • Molecular Biology

Context:

  • Cancer chemotherapy faces significant hurdles due to drug resistance.
  • Epigenetic modifications, particularly DNA methylation, are emerging as critical factors in this resistance.
  • Understanding these epigenetic alterations is vital for improving treatment efficacy.

Purpose:

  • To review the intricate relationship between DNA methylation and cancer drug resistance.
  • To elucidate the molecular mechanisms through which aberrant DNA methylation contributes to treatment failure.
  • To highlight the role of epigenetic changes in overcoming therapeutic obstacles.

Summary:

  • DNA methylation, a fundamental epigenetic process, regulates gene expression and genome stability.
  • Aberrant DNA methylation patterns are consistently observed in both primary and acquired drug-resistant tumor cells.
  • This review consolidates evidence linking abnormal DNA methylation to various forms of cancer drug resistance.

Impact:

  • Provides a comprehensive overview of DNA methylation's role in cancer drug resistance.
  • Identifies potential therapeutic targets within epigenetic regulatory pathways.
  • Informs future research directions for developing novel strategies to combat chemoresistance.

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