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The role of epigenetic transcription repression and DNA methyltransferases in cancer

Filipe Ivan Daniel1, Karen Cherubini, Liliane Soares Yurgel

  • 1School of Dentistry, Oral Medicine Division, Pontifical Catholic University of Rio Grande do Sul, Brazil. fidaniel@brturbo.com.br

Cancer
|October 15, 2010
PubMed

Insights

Epigenetic alterations, including DNA methylation, are crucial in cancer development. Aberrant DNA methylation patterns can lead to gene inactivation and tumor progression, highlighting epigenetic mechanisms in cancer.

Area of Science:

  • Molecular Biology
  • Cancer Research
  • Epigenetics

Background:

  • Epigenetic alterations, particularly DNA methylation, are increasingly recognized for their role in cancer.
  • DNA methylation involves adding a methyl group to cytosine in CpG dinucleotides, a process vital for development.
  • Dysregulation includes global hypomethylation and hypermethylation of tumor suppressor genes, promoting cancer progression.

Purpose of the Study:

  • To review the primary epigenetic mechanisms regulating transcription.
  • To explore the implications of these mechanisms in cancer development.

Main Methods:

  • Literature review of epigenetic mechanisms in cancer.
  • Analysis of DNA methylation and its role in gene regulation.

Main Results:

  • DNA methylation is essential for normal development but its aberrant forms drive cancer.
  • Increased DNA methyltransferases expression correlates with tumor progression via gene inactivation.
  • Epigenetic changes provide neoplastic cells with a selective advantage.

Conclusions:

  • Epigenetic regulation, especially DNA methylation, is fundamental to understanding cancer.
  • Targeting epigenetic mechanisms may offer novel therapeutic strategies for cancer treatment.

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