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Updated: Jun 3, 2026

Production and Detection of Reactive Oxygen Species (ROS) in Cancers
Published on: November 21, 2011
Role of lycopene in the control of ROS-mediated cell growth: implications in cancer prevention
P Palozza1, N Parrone, R Simone
1Institute of General Pathology, Catholic University, School of Medicine, Rome, Italy. p.palozza@rm.unicatt.it
Abstract:
Dietary intakes of tomatoes and tomato products containing lycopene have been shown to be associated with decreased risk of chronic diseases, such as cancer. Although several mechanisms, including modulation of gap junction communication and enhancement of immune system, are thought to be implicated in its beneficial activities, evidence is accumulating to suggest that lycopene may act as a modulator of intracellular reactive oxygen species (ROS) and, therefore, control ROS-mediated cell growth. According with this, at high concentration, ROS have been reported to be hazardous for living organisms, whereas at moderate concentrations, they play an important role as regulatory mediators in signaling processes regulating cell growth. In this review, we report the available evidence on a role of lycopene as a redox agent in cell proliferation, differentiation and apoptosis. In particular, we focused our attention on lycopene prevention of cell oxidative damage and its influence in cell growth as well as on lycopene modulation of redox-sensitive molecular targets in cell signalling: growth factors and growth factor receptors, antioxidant response elements, MAPKs, transcription factors, such as NF-kB and AP-1, and cytokine expression. Moreover, we speculate on the possible influence that lycopene may have as a redox agent in cancer.
Insights
Lycopene, found in tomatoes, may protect against chronic diseases by acting as a redox agent. It modulates reactive oxygen species (ROS) to influence cell growth, differentiation, and apoptosis, potentially preventing oxidative damage and cancer.
Area of Science:
- Nutritional Science
- Molecular Biology
- Cell Biology
Background:
- Dietary lycopene from tomatoes is linked to reduced chronic disease risk, including cancer.
- Potential mechanisms include immune modulation and gap junction communication.
- Emerging evidence suggests lycopene acts as a redox agent, controlling reactive oxygen species (ROS) and cell growth.
Purpose of the Study:
- To review the role of lycopene as a redox agent in cell proliferation, differentiation, and apoptosis.
- To examine lycopene's prevention of oxidative damage and its influence on cell growth.
- To explore lycopene's modulation of redox-sensitive molecular targets in cell signaling.
Main Methods:
- Literature review of existing evidence on lycopene's biological activities.
- Focus on lycopene's interaction with reactive oxygen species (ROS).
- Analysis of lycopene's effects on cellular processes and signaling pathways.
Main Results:
- Lycopene acts as a redox agent, influencing cell proliferation, differentiation, and apoptosis.
- It prevents cellular oxidative damage and modulates cell growth.
- Lycopene affects key redox-sensitive signaling molecules including growth factors, transcription factors (NF-kB, AP-1), and cytokines.
Conclusions:
- Lycopene's redox properties are central to its beneficial effects on cell biology.
- It plays a significant role in regulating cell growth and preventing oxidative stress.
- Lycopene may have a role in cancer prevention through its redox modulation of cellular processes.
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