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Regulation of autophagy by polyphenolic compounds as a potential therapeutic strategy for cancer

N Hasima1, B Ozpolat2

  • 11] Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 422, Houston, TX 77030, USA [2] Institute Science Biology, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia [3] Center for Research in Biotechnology for Agriculture, University of Malaya, Kuala Lumpur 50603, Malaysia.

Cell Death & Disease
|November 7, 2014
PubMed

Insights

Natural compounds like rottlerin can induce autophagy-associated cell death (type II PCD) in cancer cells. This offers a therapeutic strategy for apoptosis-resistant cancers, enhancing treatment effectiveness.

Area of Science:

  • Cell Biology
  • Molecular Oncology
  • Natural Product Chemistry

Background:

  • Autophagy is a cellular degradation process crucial for homeostasis.
  • Autophagy can act as a survival mechanism or induce programmed cell death (PCD), termed type II PCD.
  • Cancer cells resistant to apoptosis (type I PCD) may be targeted by type II PCD.

Purpose of the Study:

  • To review the role of autophagy in cancer cell death.
  • To explore the potential of dietary polyphenols in inducing autophagy-dependent cancer cell death.
  • To discuss therapeutic strategies involving autophagy modulation for cancer treatment.

Main Methods:

  • Literature review of studies on autophagy and polyphenols in cancer.
  • Analysis of mechanisms by which polyphenols induce type II PCD.
  • Examination of canonical (Beclin-1 dependent) and non-canonical (Beclin-1 independent) autophagy pathways.

Main Results:

  • Several natural polyphenols (rottlerin, genistein, quercetin, curcumin, resveratrol) can induce type II PCD in cancer cells.
  • These compounds trigger autophagy through both Beclin-1 dependent and independent pathways.
  • Autophagy induction by polyphenols presents an alternative to apoptosis for cancer cell elimination.

Conclusions:

  • Dietary polyphenols show promise as agents for inducing cancer cell death via autophagy.
  • Modulating autophagy with these compounds could enhance the efficacy of conventional cancer therapies.
  • Further research into polyphenol-mediated autophagy is warranted for novel cancer therapeutic strategies.

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