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Phytochemicals for the prevention of breast and endometrial cancer
1Bowman Gray School of Medicine, Department of Comparative Medicine, Comprehensive Cancer Center of Wake Forest University, Winston-Salem, NC 27157, USA.
Abstract:
Although there is evidence that phytochemicals decrease the incidence of breast and endometrial cancer, many observations are only phenomenologic, and much work needs to be done to explore basic mechanisms and the strategic exploitation of their interactions. The multiplicity of phytochemical actions at different sites in the process of tumorigenesis may eventually lead to the development of a multiagent strategy designed to maximize the complementary effects of different agents. A number of effects with possible relevance to cancer chemoprevention have been excluded from this review, including effects of phytochemicals on the immune response; the question of dietary restriction, which has a profound effect on tumorigenesis; the relatively low methionine levels in some phytochemicals such as soy, which may limit the synthesis of polyamines necessary for tumor growth [151]; and the fact that diets higher in plant products are usually lower in fat and result in leaner individuals with less potential for the synthesis of estradiol in adipose tissue. Also, many studies dealing solely with in vitro mutagenesis were excluded.
Insights
Phytochemicals show promise in reducing breast and endometrial cancer incidence, but further research into their mechanisms and synergistic effects is crucial for developing effective multiagent cancer chemoprevention strategies.
Area of Science:
- Oncology
- Nutritional Science
- Chemoprevention
Background:
- Phytochemicals are plant-derived compounds with demonstrated potential in reducing cancer incidence.
- Current understanding of phytochemicals' anti-cancer mechanisms is largely observational, necessitating deeper investigation.
- The complexity of phytochemical actions suggests potential for multi-target therapeutic strategies.
Purpose of the Study:
- To review the evidence for phytochemicals in decreasing breast and endometrial cancer incidence.
- To highlight the need for exploring the basic mechanisms underlying phytochemical interactions in tumorigenesis.
- To discuss the potential for developing multiagent strategies leveraging complementary phytochemical effects.
Main Methods:
- Review of existing literature on phytochemicals and cancer chemoprevention.
- Exclusion of studies focusing solely on in vitro mutagenesis.
- Exclusion of reviews on phytochemical effects on immune response and dietary restriction.
Main Results:
- Phytochemicals show evidence of decreasing breast and endometrial cancer incidence.
- The multiplicity of phytochemical actions presents opportunities for combined therapeutic approaches.
- Further research is needed to elucidate specific molecular mechanisms and optimize strategic exploitation.
Conclusions:
- Phytochemicals hold significant promise for cancer chemoprevention, particularly for breast and endometrial cancers.
- Understanding the synergistic effects of phytochemicals is key to developing advanced chemoprevention strategies.
- Future research should focus on mechanistic studies to translate observational findings into clinical applications.