Cited by 2,805Gut microbiota and healthGastrointestinal motility and disordersAnimal Nutrition and Physiology

A Dietary Fiber-Deprived Gut Microbiota Degrades the Colonic Mucus Barrier and Enhances Pathogen Susceptibility

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Desai, Mahesh S., Seekatz, Anna M., Koropatkin, Nicole M., Kamada, Nobuhiko, Hickey, Christina A., Wolter, Mathis, Pudlo, Nicholas A., Kitamoto, Sho +8 more·2016·Cell

Abstract

SUMMARY Despite the accepted health benefits of consuming dietary fiber, little is known about the mechanisms by which fiber deprivation impacts the gut microbiota and alters disease risk. Using a gnotobiotic mouse model, in which animals were colonized with a synthetic human gut microbiota composed of fully sequenced commensal bacteria, we elucidated the functional interactions between dietary fiber, the gut microbiota and the colonic mucus barrier, which serves as a primary defense against enteric pathogens. We show that during chronic or intermittent dietary fiber deficiency, the gut microbiota resorts to host-secreted mucus glycoproteins as a nutrient source, leading to erosion of the colonic mucus barrier. Dietary fiber deprivation, together with a fiber-deprived, mucus-eroding microbiota, promotes greater epithelial access and lethal colitis by the mucosal pathogen, Citrobacter rodentium. Our work reveals intricate pathways linking diet, the gut microbiome and intestinal barrier dysfunction, which could be exploited to improve health using dietary therapeutics.

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Crossref · 10.1016/j.cell.2016.10.043

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  • In a gnotobiotic mouse model colonized with human gut microbiota, chronic dietary fibre deficiency resulted in the gut microbiota using host-secreted mucus glycoproteins as an alternate nutrient source.

    “In one such study using a gnotobiotic mouse model, in which there was colonization with harvested human gut microbiota, chronic dietary fibre deficiency resulted in the gut microbiota using host-secreted mucus glycoproteins as an alternate nutrient source [54].”

    From The Health Benefits of Dietary Fibre (2020) · cites this paper as [54]

    The Results section (page unavailable) reports that fiber-free feeding increased microbial transcripts for enzymes that release sugars from host substrates, including mucin O-glycans, supporting the nutrient-source claim. But the Results and “Formulation of the Synthetic Microbiota” sections describe a deliberately assembled community of 14 human gut bacterial species, not microbiota harvested from humans. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Akkermansia can deplete the intestinal mucosal layer, decrease the number of goblet cells, produce drier stools, slow colonic transit, and impair intestinal barrier function in mice.

    “Akkermansia is a mucin-degrading bacterium and investigations on mice have found that Akkermansia can deplete the intestinal mucosal layer, decrease the number of goblet cells, produce drier stools, slow colonic transit, and impair intestinal barrier function [106–108].”

    From The gut–brain axis in early Parkinson’s disease: from prodrome to prevention (2025) · cites this paper as [106]

    The community-transcription section identifies A. muciniphila as a mucus specialist, and the Discussion reports that a fiber-deprived microbiota reduced the colonic mucus barrier and increased pathogen susceptibility in mice. The paper attributes those effects to the microbiota under a fiber-deprived diet, not to Akkermansia alone. The passages do not support decreased goblet-cell numbers, drier stools, or slower colonic transit. Page numbers were not available in our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • In that model, there was subsequent erosion of the colonic mucus barrier with greater epithelial access and predisposition to lethal colitis.

    “There was subsequent erosion of the colonic mucus barrier with greater epithelial access and predisposition to lethal colitis [54].”

    From The Health Benefits of Dietary Fibre (2020) · cites this paper as [54]

  • The Mediterranean diet has a well-established anti-inflammatory activity, mainly due to microbiota-derived short chain fatty acids induced by dietary fibre and high intake of omega-3 PUFA and antioxidants.

    “In addition to weight loss, the MD has been reported to have a well-established anti-inflammatory activity, which is mainly due to the microbiota-derived production of short chain fatty acids that are induced by dietary fibre [14] and the high intake of both polyunsaturated fatty acids (PUFA) omega 3 and antioxidants contained in fruits, vegetables, extra-virgin olive oil, and wine [15,16,17].”
  • Akkermansia has been positively associated with metabolic health, but also with low-fiber diets, and is rare in populations consuming traditional diets.

    “Akkermansia has been positively associated with metabolic health (Derrien et al., 2017), but has also been associated with low-fiber diets and is rare in populations consuming traditional diets (Earle et al., 2015; Desai et al., 2016; Smits et al., 2017).”

    From Gut-microbiota-targeted diets modulate human immune status (2021) · cites this paper as Desai et al., 2016

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Authors
Desai, M. S., Seekatz, A. M., Koropatkin, N. M., Kamada, N., Hickey, C. A., Wolter, M., Pudlo, N. A., Kitamoto, S., Terrapon, N., Muller, A., Young, V. B., Henrissat, B., Wilmes, P., Stappenbeck, T. S., Núñez, G., & Martens, E. C.
Affiliations
  • University of Michigan (US)
  • Washington University in St. Louis (US)
  • Luxembourg Institute of Health (LU)
  • Aix-Marseille Université (FR)
  • Luxembourg Centre for Systems Biomedicine (LU)
Corresponding author
  • Desai, Mahesh S.
  • Martens, Eric C.
Venue
Cell
Publisher
Elsevier BV
Published
2016-11
Volume
167
Issue
5
Pages
1339-1353.e21
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2552041992
Cited by
2,805
References
50
Citations by year
2026: 270 · 2025: 308 · 2024: 357 · 2023: 326 · 2022: 386 · 2021: 371 · 2020: 273 · 2019: 241 · 2018: 162 · 2017: 103 · 2016: 4 · 2012: 1
FWCI
88.38
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Open Repository and Bibliography (University of Luxembourg) (submittedVersion, other-oa)
  • HAL AMU (submittedVersion, other-oa)
Funders
  • Luxembourg National Research Fund (FNR) INTER Mobility (13/5624108)
  • CORE (C15/BM/10318186, 11/1186762)
  • Luxembourg Ministry of Higher Education and Research
  • FNR ATTRACT (A09/03)
  • European Union Joint Programming in Neurodegenerative Diseases (INTER/JPND/12/01)
  • NIH R01 (GM099513)
  • University of Michigan Host Microbiome Initiative and Center for Gastrointestinal Research (DK034933)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
Keywords
gut microbiota, colonic mucus barrier, mucus glycoproteins, intestinal barrier dysfunction, Citrobacter rodentium, colitis, pathogen susceptibility, gnotobiotic mouse model, host-microbe interactions
MeSH terms
Gastrointestinal Microbiome, Animals, Colitis, Colon, Dietary Fiber, Disease Susceptibility, Enterobacteriaceae Infections, Escherichia coli, Female, Germ-Free Life, Humans, Intestinal Mucosa, Male, Citrobacter rodentium, Mice, Mucin-2

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