Plant Phenolics in the Prevention and Treatment of Cancer

  • Klaus W. J. Wahle
  • Iain Brown
  • Dino Rotondo
  • Steven D. Heys
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 698)


Epidemiological studies indicate that populations consuming high levels of plant derived foods have low incidence rates of various cancers. Recent findings implicate a variety of phytochemicals, including phenolics, in these anticancer properties. Both monophenolic and polyphenolic compounds from a large variety of plant foods, spices and beverages have been shown to inhibit or attenuate the initiation, progression and spread of cancers in cells in vitro and in animals in vivo. The cellular mechanisms that phenolics modulate to elicit these anticancer effects are multi-faceted and include regulation of growth factor-receptor interactions and cell signaling cascades, including kinases and transcription factors, that determine the expression of genes involved in cell cycle arrest, cell survival and apoptosis or programmed cell death. A major focus has been the inhibitory effects of phenolics on the stress-activated NF-κB and AP-1 signal cascades in cancer cells which are regarded as major therapeutic targets. Phenolics can enhance the body’s immune system to recognize and destroy cancer cells as well as inhibiting the development of new blood vessels (angiogenesis) that is necessary for tumour growth. They also attenuate adhesiveness and invasiveness of cancer cells thereby reducing their metastatic potential.

Augmentation of the efficacy of standard chemo- and radiotherapeutic treatment regimes and the prevention of resistance to these agents is another important effect of plant phenolics that warrants further research.

Plant phenolics appear to have both preventative and treatment potential in combating cancer and warrant further, in-depth research. It is interesting that these effects of plant phenolics on cancer inhibition resemble effects reported for specific fatty acids (omega-3 PUFA, conjugated linoleic acids).

Although phenolic effects in cells in vitro and in animal models are generally positive, observations from the less numerous human interventions are less clear. This is surprising given the positive epidemiological data and may relate to mixed diets and synergistic interactions between compounds or the bioavailability of individual compounds. Much of the work in vitro with phenolic compounds has utilized concentrations higher than the amount that can be obtained from the diet suggesting a role of fortified, functional foods in cancer suppression.


Mediterranean Diet Polyphenolic Compound Ellagic Acid Shikimic Acid Ishikawa Cell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Landes Bioscience and Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Klaus W. J. Wahle
    • 1
  • Iain Brown
  • Dino Rotondo
  • Steven D. Heys
  1. 1.Cancer Medicine Research Group School of Medicine and DentistryAberdeen UniversityAberdeenUK

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