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
Summary
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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