Targeting death receptors for TRAIL by agents designed by Mother Nature

Sahdeo Prasad1, Ji Hye Kim1, Subash C Gupta1

  • 1Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA.

Insights

Certain natural compounds, or nutraceuticals, can enhance cancer therapy by upregulating death receptors (DRs). This boosts the cancer-killing effects of TRAIL-based treatments, offering a promising approach for selective tumor cell apoptosis.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Selective cancer cell killing is a key goal in cancer therapy.
  • Conventional chemotherapeutics lack tumor cell selectivity.
  • Death Receptors 4 (DR4) and 5 (DR5) are selectively expressed on cancer cells, offering therapeutic targets.

Purpose of the Study:

  • To review nutraceuticals that upregulate DR4 and DR5.
  • To explore how nutraceuticals potentiate tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL)-induced apoptosis.
  • To highlight the potential of combining nutraceuticals with DR4/DR5-targeted therapies.

Main Methods:

  • Literature review of studies on nutraceuticals and cancer cell death pathways.
  • Analysis of mechanisms by which nutraceuticals modulate DR expression and signaling.
  • Examination of evidence for nutraceuticals' effects on TRAIL-induced apoptosis.

Main Results:

  • Nutraceuticals upregulate DR4 and DR5 expression through various signaling molecules.
  • Certain nutraceuticals downregulate tumor cell-survival pathways.
  • Some nutraceuticals can independently activate cancer cell-death pathways.

Conclusions:

  • Nutraceuticals can enhance the efficacy of TRAIL and DR4/DR5 agonistic antibodies.
  • Combining nutraceuticals with targeted therapies offers a strategy to boost anticancer potential.
  • Natural compounds represent a promising avenue for improving selective cancer treatment.

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