Cited by 87Gut microbiota and healthCystic Fibrosis Research AdvancesGastrointestinal motility and disorders

Cystic fibrosis transmembrane conductance regulator knockout mice exhibit aberrant gastrointestinal microbiota

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Lynch, Susan V., Goldfarb, Katherine C., Wild, Yvette K., Kong, Weidong, De Lisle, Robert C., Brodie, Eoin L.·2013·Gut Microbes

Abstract

The composition of the gastrointestinal microbiome is increasingly recognized as a crucial contributor to immune and metabolic homeostasis-deficiencies in which are characteristic of cystic fibrosis (CF) patients. The murine model (CFTR (-/-) , CF), has, in previous studies, demonstrated characteristic CF gastrointestinal (GI) manifestations including slowed transit and significant upregulation of genes associated with inflammation. To determine if characteristics of the microbiome are associated with these phenotypes we used a phylogenetic microarray to compare small intestine bacterial communities of wild type and congenic CF mice. Loss of functional CFTR is associated with significant decreases in GI bacterial community richness, evenness and diversity and reduced relative abundance of putative protective species such as Acinetobacter lwoffii and a multitude of Lactobacilliales members. CF mice exhibited significant enrichment of Mycobacteria species and Bacteroides fragilis, previously associated with GI infection and immunomodulation. Antibiotic administration to WT and CF animals resulted in convergence of their microbiome composition and significant increases in community diversity in CF mice. These communities were characterized by enrichment of members of the Lactobacillaceae and Bifidobacteriaceae and reduced abundance of Enterobacteriaceae and Clostridiaceae. These data suggest that Enterobacteria and Clostridia species, long associated with small intestinal overgrowth and inflammatory bowel disease, may suppress both ileal bacterial diversity and the particular species which maintain motility and immune homeostasis in this niche. Thus, these data provide the first indications that GI bacterial colonization is strongly impacted by the loss of functional CFTR and opens up avenues for alternative therapeutic approaches to improve CF disease management.

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  1. Penders J, Thijs C, van den Brandt PA, Kummeling I, Snijders B, Stelma F, et al. Gut microbiota composition and development of atopic manifestations in infancy: the KOALA Birth Cohort Study. Gut 2007; 56:661- 7; PMID:17047098; http://dx.doi.org/10.1136/ gut.2006.100164. · DOI · Paper page

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Authors
Lynch, S. V., Goldfarb, K. C., Wild, Y. K., Kong, W., De Lisle, R. C., & Brodie, E. L.
Affiliations
  • University of California, San Francisco (US)
  • Lawrence Berkeley National Laboratory (US)
Corresponding author
Lynch, Susan V.
Venue
Gut Microbes
Published
2013-01
Volume
4
Issue
1
Pages
41-47
ISSN
  • 1949-0976 (ISSN-L)
  • 1949-0984
OpenAlex
W2020459103
Cited by
87
References
39
Citations by year
2026: 1 · 2025: 1 · 2024: 5 · 2023: 3 · 2022: 4 · 2021: 9 · 2020: 4 · 2019: 8 · 2018: 6 · 2017: 11 · 2016: 11 · 2015: 8 · 2014: 8 · 2013: 8
FWCI
5.23
Type
journal article
Language
en
Open access
Locations
  • Gut Microbes (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Kenneth Rainin Foundation
  • National Institute of Allergy and Infectious Diseases (R21AI083479, AI083479)
  • National Institute of Diabetes and Digestive and Kidney Diseases (T32DK007762)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cystic Fibrosis Research Advances
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
cystic fibrosis, CFTR knockout mice, gut microbiota, bacterial diversity, antibiotic therapy, mycobacteria, Bacteroides fragilis, Enterobacteriaceae, Clostridiaceae, Lactobacillaceae, Bifidobacteriaceae, Acinetobacter lwoffii, intestinal motility, intestinal inflammation, immunomodulation
MeSH terms
Animals, Bacteria, Cystic Fibrosis, Disease Models, Animal, Female, Male, Mice, Knockout, Cystic Fibrosis Transmembrane Conductance Regulator, Gastrointestinal Tract, Biodiversity, Microarray Analysis, Mice, Biota, Bacterial Load

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