The Emerging Roles and Therapeutic Implications of Epigenetic Modifications in Ovarian Cancer

Yu Wang1, Zhao Huang1, Bowen Li1

  • 1State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.

Insights

Ovarian cancer (OC) drug resistance limits patient survival. Epigenetic modifications, including DNA methylation and non-coding RNAs, drive this resistance, suggesting epigenetic therapies could improve outcomes for OC patients.

Area of Science:

  • Oncology
  • Epigenetics
  • Gynecologic Oncology

Background:

  • Ovarian cancer (OC) is a leading cause of cancer death globally.
  • Despite initial treatment success, poor survival rates persist due to drug resistance and recurrence.
  • Molecular mechanisms of OC therapeutic resistance are under intensive investigation.

Purpose of the Study:

  • To review the role of epigenetic modifications in OC drug resistance.
  • To discuss how epigenetic changes contribute to chemoresistance.
  • To explore the clinical implications of epigenetic therapies for drug-resistant OC.

Main Methods:

  • Literature review focusing on epigenetic mechanisms in ovarian cancer.
  • Analysis of studies investigating DNA methylation, histone modifications, and non-coding RNAs in OC drug resistance.
  • Synthesis of evidence linking epigenetic alterations to chemoresistance pathways.

Main Results:

  • Epigenetic modifications, including DNA methylation, histone modifications, and non-coding RNA dysregulation, are crucial in OC drug resistance.
  • These epigenetic changes promote chemoresistance by upregulating multidrug resistance proteins, altering the tumor microenvironment, and affecting immune responses.
  • Understanding these mechanisms is key to overcoming therapeutic resistance.

Conclusions:

  • Epigenetic mechanisms play a significant role in the development of ovarian cancer drug resistance.
  • Targeting epigenetic modifications offers a promising strategy to overcome chemoresistance and improve patient outcomes.
  • Epigenetic therapies may provide novel treatment options for drug-resistant ovarian cancer.

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