Food-Related Compounds That Modulate Expression of Inducible Nitric Oxide Synthase May Act as Its Inhibitors

Natural compounds commonly found in foods may contribute to protect cells against the deleterious effects of inflammation. These anti-inflammatory properties have been linked to the modulation of transcription factors that control expression of inflammation-related genes, including the inducible nit...

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Main Authors: Jesus Olivero-Verbel, Wilson Maldonado-Rojas
Format: Article
Language:English
Published: MDPI AG 2012-07-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/17/7/8118
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author Jesus Olivero-Verbel
Wilson Maldonado-Rojas
author_facet Jesus Olivero-Verbel
Wilson Maldonado-Rojas
author_sort Jesus Olivero-Verbel
collection DOAJ
description Natural compounds commonly found in foods may contribute to protect cells against the deleterious effects of inflammation. These anti-inflammatory properties have been linked to the modulation of transcription factors that control expression of inflammation-related genes, including the inducible nitric oxide synthase (iNOS), rather than a direct inhibitory action on these proteins. In this study, forty two natural dietary compounds, known for their ability to exert an inhibitory effect on the expression of iNOS, have been studied <em>in silico</em> as docking ligands on two available 3D structures for this protein (PDB ID: 3E7G and PDB ID: 1NSI). Natural compounds such as silibinin and cyanidin-3-rutinoside and other flavonoids showed the highest theoretical affinities for iNOS. Docking affinity values calculated for several known iNOS inhibitors significatively correlated with their reported half maximal inhibitory concentrations (R = 0.842, <em>P</em> < 0.0001), suggesting the computational reliability of the predictions made by our docking simulations. Moreover, docking affinity values for potent iNOS inhibitors are of similar magnitude to those obtained for some studied natural products. Results presented here indicate that, in addition to gene expression modulation of proteins involved in inflammation, some chemicals present in food may be acting by direct binding and possible inhibiting actions on iNOS.
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spelling doaj.art-ef18ddaaa95343d388f2147e379e26e72022-12-22T02:46:51ZengMDPI AGMolecules1420-30492012-07-011778118813510.3390/molecules17078118Food-Related Compounds That Modulate Expression of Inducible Nitric Oxide Synthase May Act as Its InhibitorsJesus Olivero-VerbelWilson Maldonado-RojasNatural compounds commonly found in foods may contribute to protect cells against the deleterious effects of inflammation. These anti-inflammatory properties have been linked to the modulation of transcription factors that control expression of inflammation-related genes, including the inducible nitric oxide synthase (iNOS), rather than a direct inhibitory action on these proteins. In this study, forty two natural dietary compounds, known for their ability to exert an inhibitory effect on the expression of iNOS, have been studied <em>in silico</em> as docking ligands on two available 3D structures for this protein (PDB ID: 3E7G and PDB ID: 1NSI). Natural compounds such as silibinin and cyanidin-3-rutinoside and other flavonoids showed the highest theoretical affinities for iNOS. Docking affinity values calculated for several known iNOS inhibitors significatively correlated with their reported half maximal inhibitory concentrations (R = 0.842, <em>P</em> < 0.0001), suggesting the computational reliability of the predictions made by our docking simulations. Moreover, docking affinity values for potent iNOS inhibitors are of similar magnitude to those obtained for some studied natural products. Results presented here indicate that, in addition to gene expression modulation of proteins involved in inflammation, some chemicals present in food may be acting by direct binding and possible inhibiting actions on iNOS.http://www.mdpi.com/1420-3049/17/7/8118natural compoundsmolecular dockinginflammationgene expression
spellingShingle Jesus Olivero-Verbel
Wilson Maldonado-Rojas
Food-Related Compounds That Modulate Expression of Inducible Nitric Oxide Synthase May Act as Its Inhibitors
Molecules
natural compounds
molecular docking
inflammation
gene expression
title Food-Related Compounds That Modulate Expression of Inducible Nitric Oxide Synthase May Act as Its Inhibitors
title_full Food-Related Compounds That Modulate Expression of Inducible Nitric Oxide Synthase May Act as Its Inhibitors
title_fullStr Food-Related Compounds That Modulate Expression of Inducible Nitric Oxide Synthase May Act as Its Inhibitors
title_full_unstemmed Food-Related Compounds That Modulate Expression of Inducible Nitric Oxide Synthase May Act as Its Inhibitors
title_short Food-Related Compounds That Modulate Expression of Inducible Nitric Oxide Synthase May Act as Its Inhibitors
title_sort food related compounds that modulate expression of inducible nitric oxide synthase may act as its inhibitors
topic natural compounds
molecular docking
inflammation
gene expression
url http://www.mdpi.com/1420-3049/17/7/8118
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