Cited by 481Clostridium difficile and Clostridium perfringens researchGut microbiota and healthGastrointestinal motility and disorders

Antibiotic-Induced Alterations of the Gut Microbiota Alter Secondary Bile Acid Production and Allow for Clostridium difficile Spore Germination and Outgrowth in the Large Intestine

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Theriot, Casey M., Bowman, Alison A., Young, Vincent B.·2016·mSphere

Abstract

Antibiotics alter the gastrointestinal microbiota, allowing for Clostridium difficile infection, which is a significant public health problem. Changes in the structure of the gut microbiota alter the metabolome, specifically the production of secondary bile acids. Specific bile acids are able to initiate C. difficile spore germination and also inhibit C. difficile growth in vitro , although no study to date has defined physiologically relevant bile acids in the gastrointestinal tract. In this study, we define the bile acids C. difficile spores encounter in the small and large intestines before and after various antibiotic treatments. Antibiotics that alter the gut microbiota and deplete secondary bile acid production allow C. difficile colonization, representing a mechanism of colonization resistance. Multiple secondary bile acids in the large intestine were able to inhibit C. difficile spore germination and growth at physiological concentrations and represent new targets to combat C. difficile in the large intestine.

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  • A healthy gut microbiota promotes colonization resistance against C. difficile through metabolism of bile acids to both reduce primary bile acids, which promote C. difficile spore germination, and increase secondary bile acids, which inhibit C. difficile vegetative growth.

    “Therefore, a healthy gut microbiota promotes colonization resistance against C. difficile through metabolism of bile acids to both reduce primary bile acids, which promote C. difficile spore germination, and increase secondary bile acids, which inhibit C. difficile vegetative growth.”

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Authors
Theriot, C. M., Bowman, A. A., & Young, V. B.
Affiliations
  • North Carolina State University (US)
  • University of Michigan (US)
Corresponding author
Theriot, Casey M.
Venue
mSphere
Published
2016-02-25
Volume
1
Issue
1
ISSN
2379-5042 (ISSN-L)
OpenAlex
W2310948435
Cited by
481
References
66
Citations by year
2026: 36 · 2025: 47 · 2024: 48 · 2023: 55 · 2022: 65 · 2021: 41 · 2020: 59 · 2019: 36 · 2018: 46 · 2017: 31 · 2016: 16 · 2015: 1
FWCI
39.71
Type
journal article
Language
en
Open access
Locations
  • mSphere (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
HHS | National Institutes of Health (K01GM109236, U19AI090871)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Clostridium difficile and Clostridium perfringens research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
acids, Clostridium difficile infection, antibiotic-induced dysbiosis, gut microbiota, bile acid metabolomics, spore germination, spore outgrowth, colonization resistance, deoxycholic acid, lithocholic acid, ursodeoxycholic acid, hyodeoxycholic acid, Lachnospiraceae, Ruminococcaceae, broad-spectrum antibiotics, cefoperazone, clindamycin, vancomycin

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