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Defatted bovine milk fat globule membrane inhibits association of enterohaemorrhagic Escherichia coli O157:H7 with human HT-29 cells
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2016-08
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Sarah A. Ross, Jonathan A. Lane, Michelle Kilcoyne, Lokesh Joshi, Rita M. Hickey, Defatted bovine milk fat globule membrane inhibits association of enterohaemorrhagic Escherichia coli O157:H7 with human HT-29 cells, International Dairy Journal, Volume 59, 2016, Pages 36-43, ISSN 0958-6946, https://doi.org/10.1016/j.idairyj.2016.03.001.
Abstract
The bovine milk fat globule membrane (MFGM) is a source of food-derived glycans that can offer an approach to prevent Escherichia coli O157:H7 infection by inhibiting attachment of the pathogen to host cells. Such glycans may decrease the need for antibiotic treatment by acting as prophylactics. In this study, we generated a defatted bovine MFGM fraction, rich in proteins and glycoproteins, and demonstrated its ability to prevent the association of several enterohaemorrhagic E. coli O157:H7 strains with human colonic adenocarcinoma, HT-29 cells. This defatted MFGM fraction reduced bacterial association with HT-29 cells in a concentration dependent and strain specific manner. This study may present a new approach to mitigate the adverse health effects caused by E. coli infections in humans.