Regulation of inflammation and redox signaling by dietary polyphenols

被引:717
|
作者
Rahman, Irfan
Biswas, Saibal K.
Kirkham, Paul A.
机构
[1] Univ Rochester, Med Ctr, Div Lung Biol & Dis, Dept Environm Med, Rochester, NY 14642 USA
[2] Dr Ambedkar Coll, Dept Biochem, Nagpur, Maharashtra, India
[3] Novartis Inst Biomed Res, Horsham, W Sussex, England
关键词
curcumin; resveratrol; oxidants; glucocorticoids; histone deacetylase; NF-kappa B; Nrf2;
D O I
10.1016/j.bcp.2006.07.004
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Reactive oxygen species (ROS) play a key role in enhancing the inflammation through the activation of NF-kappa B and AP-1 transcription factors, and nuclear histone acetylation and deacetylation in various inflammatory diseases. Such undesired effects of oxidative stress have been found to be controlled by the antioxidant and/or anti-inflammatory effects of dietary polyphenols such as curcumin (diferuloylmethane, a principal component of tumeric) and resveratrol. (a flavanoid found in red wine). The phenolic compounds in fruits, vegetables, tea and wine are mostly derivatives, and/or isomers of flavones, isoflavones, flavonols, catechins, tocopherols, and phenolic acids. Polyphenols modulate important cellular signaling processes such as cellular growth, differentiation and host of other cellular features. In addition, they modulate NF-kappa B activation, chromatin structure, glutathione biosynthesis, nuclear redox factor (Nrf2) activation, scavenge effect of ROS directly or via glutathione peroxidase activity and as a consequence regulate inflammatory genes in macrophages and lung epithelial cells. However, recent data suggest that dietary polyphenols can work as modifiers of signal transduction pathways to elicit their beneficial effects. The effects of polyphenols however, have been reported to be more pronounced in vitro using high concentrations which are not physiological in vivo. This commentary discusses the recent data on dietary polyphenols in the control of signaling and inflammation particularly during oxidative stress, their metabolism and bioavailability. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:1439 / 1452
页数:14
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