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Involvement of autophagy in ovarian cancer: a working hypothesis

Claudia Peracchio1, Oscar Alabiso, Guido Valente

  • 1Laboratory of Molecular Pathology and Nanobioimaging, Department of Health Sciences, Novara, Italy. isidoro@med.unipmn.it.

Journal of Ovarian Research
|September 15, 2012
PubMed

Insights

Autophagy, a cellular recycling process, plays a dual role in cancer. Inhibiting autophagy can enhance cancer treatment, while its overactivation may induce cancer cell death.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Oncology

Background:

  • Autophagy is a fundamental cellular process essential for maintaining homeostasis by clearing damaged components.
  • In normal cells, autophagy prevents DNA mutations and cancer by eliminating harmful mitochondria and protein aggregates.
  • Dysregulation of autophagy, often due to genetic mutations, is implicated in cancer development and progression.

Purpose of the Study:

  • To review the role of macroautophagy in ovarian cancer pathogenesis and progression.
  • To explore the genetic and epigenetic regulation of autophagy in the context of ovarian cancer.
  • To discuss the therapeutic implications of modulating autophagy in ovarian cancer treatment.

Main Methods:

  • Literature review focusing on macroautophagy.
  • Analysis of genetic and epigenetic regulation of autophagy.
  • Examination of autophagy's role in cancer cell survival and death.

Main Results:

  • Autophagy can promote cancer cell survival under stress (hypoxia, nutrient deprivation) and confer resistance to chemotherapy and radiotherapy.
  • Aberrant hyper-induction of autophagy can lead to cancer cell death, presenting a potential therapeutic strategy.
  • Factors like vascularization, inflammation, stromal infiltration, and microRNAs significantly influence autophagy levels in cancer cells.

Conclusions:

  • Autophagy's complex role in ovarian cancer necessitates careful consideration for therapeutic strategies.
  • Targeting autophagy, either through inhibition or induction, holds promise for ovarian cancer treatment.
  • Understanding the genetic and epigenetic control of autophagy is crucial for developing effective cancer therapies.

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