A review of the effects and mechanisms of polyphenolics in cancer
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Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro
Published on: July 5, 2017
Sailendra N Nichenametla1, Todd G Taruscio, Danny L Barney
1Department of Food Science and Toxicology, University of Idaho, Moscow, ID 83844-2201, USA.
Abstract:
This paper is a comprehensive review of the effects of bioactive polyphenolic compounds commonly found in many fruits and vegetables on cancer. These include the pheniolic acids, anthocyanins, catechins, stilbenes and several other flavonoids. We have attempted to compile information from most of the major studies in this area into one source. The review encompasses the occurrence and bioavailability of the polyphenolics, the in vitro and in vivo evidence for their effects on cancer, both positive and negative, and the various mechanisms by which the chemicals may exert their effects. Although most of the work done to date indicates a chemopreventative activity of these compounds, there are some studies that show cancer-inducing or no effects. There are several common mechanisms by which these chemicals exert their effects that could be conducive to additive, synergistic, or antagonistic interactions. These include effects on cellular differentiation, proliferation, and apoptosis, effects on proteins and enzymes that are involved in these processes at a molecular level, and other various effects through altered immune function and chemical metabolism.
Insights
Dietary polyphenols from fruits and vegetables show potential cancer chemopreventative activity. This review compiles evidence on their effects, mechanisms, and interactions, highlighting both protective and potentially harmful outcomes.
Area of Science:
- Nutritional Science
- Oncology
- Biochemistry
Background:
- Bioactive polyphenolic compounds are abundant in fruits and vegetables.
- These compounds include phenolic acids, anthocyanins, catechins, stilbenes, and flavonoids.
- Their role in cancer prevention and progression is an area of active research.
Purpose of the Study:
- To comprehensively review the effects of dietary polyphenols on cancer.
- To compile existing research on polyphenol occurrence, bioavailability, and anticancer mechanisms.
- To evaluate both positive and negative impacts of polyphenols on cancer development.
Main Methods:
- Systematic literature review of major studies on polyphenols and cancer.
- Compilation of data on in vitro and in vivo evidence.
- Analysis of proposed molecular mechanisms of action.
Main Results:
- Most studies indicate chemopreventative activity of polyphenols.
- Some research suggests potential cancer-inducing or neutral effects.
- Common mechanisms involve modulation of cellular differentiation, proliferation, and apoptosis.
Conclusions:
- Dietary polyphenols exhibit complex interactions with cancer development.
- Further research is needed to elucidate mechanisms and optimize therapeutic potential.
- Understanding these interactions is crucial for dietary cancer prevention strategies.
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