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Arabinoxylans, inulin and Lactobacillus reuteri 1063 repress the adherent-invasive Escherichia coli from mucus in a musosa-comprising gut model

Pieter Van den Abbeele (UGent) , Massimo Marzorati (UGent) , Melanie Derde (UGent) , Rosemarie De Weirdt (UGent) , Joan Vermeiren (UGent) , Sam Possemiers (UGent) and Tom Van de Wiele (UGent)
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Abstract
The microbiota that colonises the intestinal mucus may particularly affect human health given its proximity to the epithelium. For instance, the presence of the adherent-invasive Escherichia coli (AIEC) in this mucosal microbiota has been correlated with Crohn's disease. Using short-term screening assays and a novel long-term dynamic gut model, which comprises a simulated mucosal environment (M-SHIME), we investigated how (potential) pro-and prebiotics may repress colonisation of AIEC from mucus. Despite that during the short-term screening assays, some of the investigated Lactobacillus strains adhered strongly to mucins, none of them competed with AIEC for mucin-adhesion. In contrast, AIEC survival and growth during co-culture batch incubations was decreased by Lactobacillus rhamnosus GG and L. reuteri 1063, which correlated with (undissociated) lactic acid and reuterin levels. Regarding the prebiotics, long-chain arabinoxylans (LC-AX) lowered the initial mucin-adhesion of AIEC, while both inulin (IN) and galacto-oligosaccharides (GOS) limited AIEC survival and growth during batch incubations. L. reuteri 1063, LC-AX and IN were thus retained for a long-term study with the M-SHIME. All treatments repressed AIEC from mucus without affecting AIEC numbers in the luminal content. As a possible explanation, L. reuteri 1063 treatment increased lactobacilli levels in mucus, while LC-AX and IN additionally increased mucosal bifidobacteria levels, thus leading to antimicrobial effects against AIEC in mucus. Overall, this study shows that pro-and prebiotics can beneficially modulate the in vitro mucosal microbiota, thus limiting occurrence of opportunistic pathogens among those mucosal microbes which may directly interact with the host given their proximity to the epithelium.

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MLA
Van den Abbeele, Pieter, Massimo Marzorati, Melanie Derde, et al. “Arabinoxylans, Inulin and Lactobacillus Reuteri 1063 Repress the Adherent-invasive Escherichia Coli from Mucus in a Musosa-comprising Gut Model.” NPJ BIOFILMS AND MICROBIOMES 2 (2016): n. pag. Print.
APA
Van den Abbeele, P., Marzorati, M., Derde, M., De Weirdt, R., Vermeiren, J., Possemiers, S., & Van de Wiele, T. (2016). Arabinoxylans, inulin and Lactobacillus reuteri 1063 repress the adherent-invasive Escherichia coli from mucus in a musosa-comprising gut model. NPJ BIOFILMS AND MICROBIOMES, 2.
Chicago author-date
Van den Abbeele, Pieter, Massimo Marzorati, Melanie Derde, Rosemarie De Weirdt, Joan Vermeiren, Sam Possemiers, and Tom Van de Wiele. 2016. “Arabinoxylans, Inulin and Lactobacillus Reuteri 1063 Repress the Adherent-invasive Escherichia Coli from Mucus in a Musosa-comprising Gut Model.” Npj Biofilms and Microbiomes 2.
Chicago author-date (all authors)
Van den Abbeele, Pieter, Massimo Marzorati, Melanie Derde, Rosemarie De Weirdt, Joan Vermeiren, Sam Possemiers, and Tom Van de Wiele. 2016. “Arabinoxylans, Inulin and Lactobacillus Reuteri 1063 Repress the Adherent-invasive Escherichia Coli from Mucus in a Musosa-comprising Gut Model.” Npj Biofilms and Microbiomes 2.
Vancouver
1.
Van den Abbeele P, Marzorati M, Derde M, De Weirdt R, Vermeiren J, Possemiers S, et al. Arabinoxylans, inulin and Lactobacillus reuteri 1063 repress the adherent-invasive Escherichia coli from mucus in a musosa-comprising gut model. NPJ BIOFILMS AND MICROBIOMES. 2016;2.
IEEE
[1]
P. Van den Abbeele et al., “Arabinoxylans, inulin and Lactobacillus reuteri 1063 repress the adherent-invasive Escherichia coli from mucus in a musosa-comprising gut model,” NPJ BIOFILMS AND MICROBIOMES, vol. 2, 2016.
@article{8200665,
  abstract     = {{The microbiota that colonises the intestinal mucus may particularly affect human health given its proximity to the epithelium. For instance, the presence of the adherent-invasive Escherichia coli (AIEC) in this mucosal microbiota has been correlated with Crohn's disease. Using short-term screening assays and a novel long-term dynamic gut model, which comprises a simulated mucosal environment (M-SHIME), we investigated how (potential) pro-and prebiotics may repress colonisation of AIEC from mucus. Despite that during the short-term screening assays, some of the investigated Lactobacillus strains adhered strongly to mucins, none of them competed with AIEC for mucin-adhesion. In contrast, AIEC survival and growth during co-culture batch incubations was decreased by Lactobacillus rhamnosus GG and L. reuteri 1063, which correlated with (undissociated) lactic acid and reuterin levels. Regarding the prebiotics, long-chain arabinoxylans (LC-AX) lowered the initial mucin-adhesion of AIEC, while both inulin (IN) and galacto-oligosaccharides (GOS) limited AIEC survival and growth during batch incubations. L. reuteri 1063, LC-AX and IN were thus retained for a long-term study with the M-SHIME. All treatments repressed AIEC from mucus without affecting AIEC numbers in the luminal content. As a possible explanation, L. reuteri 1063 treatment increased lactobacilli levels in mucus, while LC-AX and IN additionally increased mucosal bifidobacteria levels, thus leading to antimicrobial effects against AIEC in mucus. Overall, this study shows that pro-and prebiotics can beneficially modulate the in vitro mucosal microbiota, thus limiting occurrence of opportunistic pathogens among those mucosal microbes which may directly interact with the host given their proximity to the epithelium.}},
  articleno    = {{16016}},
  author       = {{Van den Abbeele, Pieter and Marzorati, Massimo and Derde, Melanie and De Weirdt, Rosemarie and Vermeiren, Joan and Possemiers, Sam and Van de Wiele, Tom}},
  issn         = {{2055-5008}},
  journal      = {{NPJ BIOFILMS AND MICROBIOMES}},
  language     = {{eng}},
  pages        = {{8}},
  title        = {{Arabinoxylans, inulin and Lactobacillus reuteri 1063 repress the adherent-invasive Escherichia coli from mucus in a musosa-comprising gut model}},
  url          = {{http://dx.doi.org/10.1038/npjbiofilms.2016.16}},
  volume       = {{2}},
  year         = {{2016}},
}

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