Anti-Infective Effect of Adhesive Probiotic Lactobacillus in Fish is Correlated With Their Spatial Distribution in the Intestinal Tissue

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He , S , Ran , C , Qin , C , Li , S , Zhang , H , de Vos , W M , Ringo , E & Zhou , Z 2017 , ' Anti-Infective Effect of Adhesive Probiotic Lactobacillus in Fish is Correlated With Their Spatial Distribution in the Intestinal Tissue ' , Scientific Reports , vol. 7 , 13195 . https://doi.org/10.1038/s41598-017-13466-1

Title: Anti-Infective Effect of Adhesive Probiotic Lactobacillus in Fish is Correlated With Their Spatial Distribution in the Intestinal Tissue
Author: He, Suxu; Ran, Chao; Qin, Chubin; Li, Shuning; Zhang, Hongling; de Vos, Willem M.; Ringo, Einar; Zhou, Zhigang
Contributor: University of Helsinki, Medicum
Date: 2017-10-16
Language: eng
Number of pages: 12
Belongs to series: Scientific Reports
ISSN: 2045-2322
URI: http://hdl.handle.net/10138/228333
Abstract: In this study, we tested the distribution of 49 Lactobacillus strains in the mucus and mucosa of the intestine tissue of zebrafish. We observed a progressive change in the spatial distribution of Lactobacillus strains, and suggested a division of the strains into three classes: mucus type (>70% in mucus), mucosa type (>70% in mucosa) and hybrid type (others). The hybrid type strains were more efficient in protection of zebrafish against Aeromonas hydrophila infection. Three strains representing different distribution types (JCM1149, CGMCC1.2028, and JCM 20300) were selected. The mucosa type strain JCM1149 induced higher intestinal expression of inflammatory cytokines and Hsp70 than the other strains. Furthermore, we used L. rhamnosus GG and its mutant (PB22) lacking SpaCBA pili to investigate the influence of pili on spatial distribution. LGG showed a mucosa type distribution, while PB22 revealed a hybrid distribution and the disease protection was accordingly improved. The different protection ability between LGG and PB22 did not involve the intestinal microbiota, however, LGG induced injury to the mucosa of zebrafish. Collectively, the disease protection activity of Lactobacillus in zebrafish is correlated with their spatial distribution in the intestinal tissue, with strains showing a balanced distribution (hybrid type) more efficient in protection.
Subject: RHAMNOSUS GG
GUT MICROBIOTA
BINDING-PROTEIN
MUCUS
ZEBRAFISH
PILI
COLONIZATION
MECHANISM
RESPONSES
STRAINS
3111 Biomedicine
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