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The unsaponifiable fraction of extra virgin olive oil promotes apoptosis and attenuates activation and homing properties of T cells from patients with inflammatory bowel disease

Journal article
Authors A. Cardeno
Maria K Magnusson
Hans Strid
C. A. de la Lastra
M. Sanchez-Hidalgo
Lena Öhman
Published in Food Chemistry
Volume 161
Pages 353-360
ISSN 0308-8146
Publication year 2014
Published at Institute of Biomedicine, Department of Microbiology and Immunology
Institute of Medicine, Department of Internal Medicine and Clinical Nutrition
Pages 353-360
Language en
Links dx.doi.org/10.1016/j.foodchem.2014....
Keywords Extra virgin olive oil; Unsaponifiable fraction; Inflammatory bowel disease; T cells
Subject categories Nutrition and Dietetics

Abstract

The unsaponifiable fraction (UF) of extra virgin olive oil (EV00) possesses anti-inflammatory properties and exerts preventative effects in murine models of inflammatory bowel disease (IBD). The present study was designed to determine the in vitro effects of UF on blood and intestinal T cells from IBD patients and healthy subjects. The T cell phenotype was investigated by flow cytometry and cytokine secretion was determined by ELISA. The presence of UF of EVO0 promoted apoptosis and attenuated activation of intestinal and blood T cells isolated from IBD patients, decreasing the frequency of CD69(+) and CD25(+) T cells and, also, the secretion of IFN-gamma. Moreover, UF reduced the expression of the gut homing receptor integrin beta 7 on blood T cells from IBD patients. In conclusion, UF modulates the activity and the gut homing capacity of T cells, and might therefore be considered as a dietary complement with an anti-inflammatory role in IBD patients. (C) 2014 Published by Elsevier Ltd.

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