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Ratio of “A-type” to “B-type” Proanthocyanidin Interflavan Bonds Affects Extra-intestinal Pathogenic Escherichia coli Invasion of Gut Epithelial Cell

Author:
Feliciano, Rodrigo P., Meudt, Jennifer J., Shanmuganayagam, Dhanansayan, Krueger, Christian G., Reed, Jess D.
Source:
Journal of agricultural and food chemistry 2014 v.62 no.18 pp. 3919-3925
ISSN:
0021-8561
Subject:
risk, apples, proanthocyanidins, bioactive properties, septicemia, urinary tract diseases, cranberries, agglutination, enterocytes, Escherichia coli
Abstract:
Gut colonization by extra-intestinal pathogenic Escherichia coli (ExPEC) increases the risk of subsequent infections, including urinary tract infection and septicemia. Previous work suggests that cranberry proanthocyanidins (PAC) interact with bacterial surface factors, altering bacterial interaction with host cells. Methods were developed to determine if ratios of “A-type” to “B-type” interflavan bonds in PAC affect ExPEC agglutination and invasion of enterocytes. In cranberries, 94.5% of PAC contain one or more “A-type” bonds, whereas in apples, 88.3% of PAC contain exclusively “B-type” bonds. Results show that cranberry “A-type” PAC have greater bioactivity than apple “B-type” PAC for increasing ExPEC agglutination and decreasing ExPEC epithelial cell invasion.
Agid:
4321664