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Epigenetic modifications: Key players in cancer heterogeneity and drug resistance

Hana Q Sadida1, Alanoud Abdulla1, Sara Al Marzooqi1

  • 1Laboratory of Precision Medicine in Diabetes, Obesity and Cancer, Department of Population Genetics, Sidra Medicine, Doha 26999, Qatar.

Translational Oncology
|November 6, 2023
PubMed

Insights

Epigenetic modifications drive cancer heterogeneity and drug resistance by altering gene expression. Understanding these changes is key to developing new epigenetic therapies for improved cancer treatment outcomes.

Area of Science:

  • Oncology
  • Epigenetics
  • Molecular Biology

Background:

  • Cancer heterogeneity and drug resistance are major challenges in oncology.
  • Epigenetic modifications, which alter gene expression without changing DNA sequence, play a significant role in these challenges.
  • Key epigenetic mechanisms include DNA methylation, histone modifications, and chromatin remodeling.

Purpose of the Study:

  • To review the role of epigenetic modifications in cancer heterogeneity and drug resistance.
  • To explore the potential of epigenetic therapies for cancer treatment.
  • To identify knowledge gaps and future research directions in the field.

Main Methods:

  • Literature review of current research on epigenetic modifications in cancer.
  • Analysis of the interplay between epigenetic and genetic changes in cancer cells.
  • Discussion of therapeutic strategies targeting epigenetic alterations.

Main Results:

  • Epigenetic modifications significantly contribute to cellular diversity and adaptive changes leading to therapeutic resistance.
  • The reversible nature of epigenetic changes offers potential for novel therapeutic interventions.
  • The complex interplay between epigenetic and genetic factors presents challenges for effective treatment.

Conclusions:

  • Understanding epigenetic modifications is critical for advancing cancer treatment and improving patient outcomes.
  • Further research is needed to overcome obstacles in translating epigenetic therapies into clinical practice.
  • Developing innovative, patient-centered cancer therapies requires a comprehensive approach to epigenetic alterations.
Keywords:
Cancer heterogeneityChromatin remodelingDNA methylationDrug resistanceEpigenetic modificationsEpigenetic therapiesGene expression regulationHistone modifications

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