Microbe-microbe interactions during Clostridioides difficile infection
Arwa Abbas1, Joseph P Zackular2
1Division of Protective Immunity, Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA.
Current Opinion in Microbiology
|February 24, 2020
Summary
Clostridioides difficile infection, a major healthcare concern, is influenced by the gut microbiome. This review explores how gut bacteria and their metabolites affect C. difficile virulence and disease severity.
Area of Science:
- Gastroenterology
- Microbiology
- Public Health
Background:
- Clostridioides difficile is a primary cause of hospital-acquired infections in the US.
- C. difficile infection (CDI) presents a range of illness severity, from mild diarrhea to life-threatening complications.
- Factors like host genetics and drug exposure partially explain CDI severity, but the gut microbiome's role is crucial.
Purpose of the Study:
- To review the impact of the gut microbiome on C. difficile virulence.
- To explore how gut microbiota and their metabolites influence CDI pathogenesis.
- To understand the mechanisms behind disrupted colonization resistance.
Main Methods:
- Literature review of studies on C. difficile and gut microbiota interactions.
- Analysis of research on microbial metabolites affecting C. difficile.
- Synthesis of data on host-microbiome-pathogen dynamics in CDI.
Main Results:
- Gut microbiota disruption diminishes colonization resistance, increasing susceptibility to C. difficile.
- Microbial metabolites play a significant role in modulating C. difficile growth and toxin production.
- Specific bacterial species and their metabolic byproducts can either promote or inhibit CDI.
Conclusions:
- The gut microbiome is a critical determinant of C. difficile infection outcomes.
- Targeting the gut microbiota and its metabolites offers potential therapeutic strategies for CDI.
- Further research into host-microbiome interactions is essential for combating CDI.
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