Abstract
Polyphenolic compounds are widely distributed in the plant kingdom and the anticancer benefits obtained from their consumption have been studied extensively. However, polyphenols are subject to various biotransformation reactions within the human body including methylation. Likewise, naturally occurring polyphenols may contain O-methylations in place of the hydroxyls of the parent compounds. While some studies suggest that methylations can increase the bioavailability of polyphenols, other studies indicate a decrease in the anticancer benefits of methylated polyphenols. This review will focus on the cellular activities of polyphenols, their potential molecular targets and their biological effects after enzymatic methylation. Furthermore, an assessment of the positive and negative aspects of polyphenol methylation on the anticancer activity will be discussed. Finally, the future of polyphenols in both cancer prevention and cancer intervention will be addressed.
Keywords: Proteasome inhibitor, molecular target, natural product, drug discovery, anticancer
Current Molecular Pharmacology
Title: Polyphenols: Biological Activities, Molecular Targets, and the Effect of Methylation
Volume: 1
Author(s): K. R. Landis-Piwowar and Q. P. Dou
Affiliation:
Keywords: Proteasome inhibitor, molecular target, natural product, drug discovery, anticancer
Abstract: Polyphenolic compounds are widely distributed in the plant kingdom and the anticancer benefits obtained from their consumption have been studied extensively. However, polyphenols are subject to various biotransformation reactions within the human body including methylation. Likewise, naturally occurring polyphenols may contain O-methylations in place of the hydroxyls of the parent compounds. While some studies suggest that methylations can increase the bioavailability of polyphenols, other studies indicate a decrease in the anticancer benefits of methylated polyphenols. This review will focus on the cellular activities of polyphenols, their potential molecular targets and their biological effects after enzymatic methylation. Furthermore, an assessment of the positive and negative aspects of polyphenol methylation on the anticancer activity will be discussed. Finally, the future of polyphenols in both cancer prevention and cancer intervention will be addressed.
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Cite this article as:
Landis-Piwowar R. K. and Dou P. Q., Polyphenols: Biological Activities, Molecular Targets, and the Effect of Methylation, Current Molecular Pharmacology 2008; 1 (3) . https://dx.doi.org/10.2174/1874467210801030233
DOI https://dx.doi.org/10.2174/1874467210801030233 |
Print ISSN 1874-4672 |
Publisher Name Bentham Science Publisher |
Online ISSN 1874-4702 |
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