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Published on: November 17, 2011
Are lycopene metabolites metabolically active?
1Department of Nutritional Sciences, University of Texas, Austin, USA.
Abstract:
Lycopene is the most abundant carotenoid found in tomatoes and thus has been touted as the bioactive component for the reduced risk of chronic diseases such as prostate cancer. We and others hypothesize that lycopene metabolites are responsible for positively modulating biomarkers and risk factors for the prevention of chronic diseases. Lycopene metabolites circulate in serum and accumulate in tissues at concentrations equivalent to bioactive retinoids. Recent studies report that lycopene metabolites reduce the proliferation of cancer cells, induce apoptosis, enhance gap junction communication between cells, alter normal cell cycle progression, and modulate androgen signaling pathways. Here we review recent literature and provide new evidence to suggest that lycopene metabolites may be bioactive at physiological concentrations.
Insights
Lycopene metabolites, found in tomatoes, show potential in preventing chronic diseases like prostate cancer. These compounds may be biologically active at normal body concentrations.
Area of Science:
- Nutritional biochemistry
- Cancer research
- Carotenoid metabolism
Background:
- Lycopene, a tomato carotenoid, is linked to reduced chronic disease risk, particularly prostate cancer.
- The hypothesis suggests lycopene metabolites, not just lycopene, are key to these health benefits.
- These metabolites are found in serum and tissues at levels comparable to bioactive retinoids.
Purpose of the Study:
- To review current literature on lycopene metabolites and their role in disease prevention.
- To present new evidence supporting the bioactivity of lycopene metabolites at physiological concentrations.
- To explore the mechanisms by which lycopene metabolites may prevent chronic diseases.
Main Methods:
- Literature review of recent studies on lycopene metabolites.
- Analysis of evidence regarding metabolite concentrations in biological systems.
- Examination of reported cellular and molecular effects of lycopene metabolites.
Main Results:
- Lycopene metabolites have been shown to inhibit cancer cell proliferation.
- These metabolites can induce apoptosis (programmed cell death) in cancer cells.
- Evidence suggests modulation of cell cycle, gap junction communication, and androgen signaling by lycopene metabolites.
Conclusions:
- Lycopene metabolites may exert significant biological effects at concentrations found in the body.
- These findings support the role of lycopene metabolites in the prevention of chronic diseases.
- Further research into lycopene metabolite mechanisms is warranted for therapeutic applications.
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