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American Chemical Society, Journal of Agricultural and Food Chemistry, 30(60), p. 7367-7374, 2012

DOI: 10.1021/jf203967u

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Resveratrol and Some Glucosyl, Glucosylacyl, and Glucuronide Derivatives Reduce Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes Scott A Adhesion to Colonic Epithelial Cell Lines

This paper is available in a repository.
This paper is available in a repository.

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Abstract

The efficacy of resveratrol and some glucosyl, glucosylacyl, and glucuronide derivatives in inhibiting the adhesion of Salmonella Typhimurium, Escherichia coli O157:H7, and Listeria monocytogenes Scott A to Caco-2 and HT-29 colonic cells was investigated. The three bacteria strains were capable of adhering to both colonic epithelial cell lines, which responded by producing the pro-inflammatory interleukin 8 (IL-8). Adhesion inhibition of E. coli O157:H7 and S. Typhimurium to colonic cells was ≥60 and ≥40%, respectively, when resveratrol and most of the resveratrol derivatives were applied. Lower adhesion inhibition was observed for the bacteria with higher adherence potential, L. monocytogenes (≥20%). Resveratrol-3-O-(6'-O-butanoyl)-β-d-glucopyranoside (BUT) (50 and 100 μM) and resveratrol-3-O-(6'-O-octanoyl)-β-d-glucopyranoside (OCT) (50 μM) reduced IL-8 secretion by 100%. These results suggest that one mechanism for the beneficial attributes of resveratrol and especially the derivatives BUT and OCT could be the ability to reduce the adhesion and consequent pro-inflammatory cytokine production in intestinal epithelial cells in response to pathogen adhesion. The potential use of these compounds in the prevention of foodborne infections, intestinal homeostasis loss, and inflammatory bowel diseases could be another step in finding coadjuvants or alternatives to antibiotic treatments.