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Melatonin, a natural programmed cell death inducer in cancer

M Sánchez-Hidalgo1, J M Guerrero, I Villegas

  • 1Department of Pharmacology, Faculty of Pharmacy, University of Seville, Spain. hidalgosanz@us.es

Current Medicinal Chemistry
|May 23, 2012
PubMed

Insights

Melatonin, a hormone regulating circadian rhythms, shows potential in cancer treatment by promoting apoptosis in tumor cells while sparing normal cells. This research reviews its pro-apoptotic effects in preclinical cancer models.

Area of Science:

  • Endocrinology
  • Oncology
  • Molecular Biology

Background:

  • Melatonin, an indolamine, regulates circadian rhythms and possesses antioxidant and immunomodulatory properties.
  • Evidence suggests melatonin restrains tumor initiation, promotion, and progression.
  • Depressed nocturnal melatonin levels are linked to various tumor types.

Purpose of the Study:

  • To review research on melatonin's pro-apoptotic effects in preclinical cancer models.
  • To elucidate the proposed mechanisms underlying melatonin's pro-apoptotic action.
  • To explore the clinical implications of melatonin's cancer-fighting properties.

Main Methods:

  • In vitro studies on human cancer cell lines.
  • In vivo studies using experimental animal tumor models.
  • Analysis of proposed molecular mechanisms of action.

Main Results:

  • Melatonin demonstrated inhibition of tumor development and growth in most experimental models.
  • Melatonin appears to promote apoptosis in most tumor cells, unlike normal cells.
  • Research indicates specific mechanisms by which melatonin influences apoptosis.

Conclusions:

  • Melatonin's ability to induce apoptosis in cancer cells offers potential therapeutic benefits.
  • Further research into melatonin's pro-apoptotic effects could lead to improved cancer treatment strategies.
  • Findings suggest melatonin may enhance quality of life and aid in cancer prevention.

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