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Methods to Evaluate Cytotoxicity and Immunosuppression of Combustible Tobacco Product Preparations
Published on: January 10, 2015
Lycopene modulation of molecular targets affected by smoking exposure
P Palozza1, R Simone, A Catalano
1Institute of General Pathology, Catholic University School of Medicine, Rome, Italy. p.palozza@rm.unicatt.it
Abstract:
Increasing evidence indicates that tomato lycopene may be an ideal candidate in protecting from cancer risk related to smoking exposure. The carotenoid shows potent redox-properties by which it decreases the reactive oxygen species (ROS) generated by smoke and modulates redox-sensitive cell targets, including protein tyrosine phosphatases, protein kinases, MAPKs and transcription factors. Moreover, it counteracts the effects of smoke on carcinogen-bioactivating enzymes and on molecular pathways involved in cell proliferation, apoptosis and inflammation. Lycopene also inhibits smoke-stimulated IGF-signalling and smoke-induced DNA adducts. Some of these actions may be mediated by its oxidative metabolites and may be synergistically enhanced by the presence of other antioxidant nutrients. This review summarizes the background information about the interactions of lycopene with smoke in experimental models and presents the most current knowledge with respect to lycopene role in smoke-related diseases.
Insights
Tomato lycopene, a potent antioxidant, shows promise in reducing cancer risk from smoking exposure. It combats reactive oxygen species (ROS) and counteracts smoke-induced cellular damage, offering protective effects against smoking-related diseases.
Area of Science:
- Nutritional science
- Biochemistry
- Toxicology
Background:
- Smoking exposure significantly increases cancer risk.
- Reactive oxygen species (ROS) generated by smoke contribute to cellular damage and disease.
- Lycopene, a carotenoid found in tomatoes, possesses antioxidant properties.
Purpose of the Study:
- To review the protective effects of tomato lycopene against smoking-induced cancer risk.
- To summarize the molecular mechanisms underlying lycopene's interaction with smoke exposure.
- To present current knowledge on lycopene's role in mitigating smoke-related diseases.
Main Methods:
- Review of experimental models investigating lycopene and smoke interactions.
- Analysis of lycopene's effects on redox balance and cellular targets.
- Examination of lycopene's impact on carcinogen metabolism and molecular pathways.
Main Results:
- Lycopene decreases smoke-induced reactive oxygen species (ROS).
- It modulates redox-sensitive cell targets, including kinases and transcription factors.
- Lycopene counteracts smoke's effects on enzymes, cell proliferation, apoptosis, inflammation, IGF-signalling, and DNA adducts.
Conclusions:
- Tomato lycopene demonstrates significant potential in protecting against smoking-related cancer risk.
- Its antioxidant and anti-inflammatory properties offer a promising strategy for disease prevention.
- Synergistic effects with other nutrients may enhance lycopene's protective actions.
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