Cited by 109Gut microbiota and healthBacterial biofilms and quorum sensingOral microbiology and periodontitis research

A tale of two sites: how inflammation can reshape the microbiomes of the gut and lungs

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Scales, Brittan S, Dickson, Robert P, Huffnagle, Gary B·2016·Journal of Leukocyte Biology

Abstract

Inflammation can directly and indirectly modulate the bacterial composition of the microbiome. Although studies of inflammation primarily focus on its function to negatively select against potential pathogens, some bacterial species have the ability to exploit inflammatory byproducts for their benefit. Inflammatory cells release reactive nitrogen species as antimicrobial effectors against infection, but some facultative anaerobes can also utilize the increase in extracellular nitrate in their environment for anaerobic respiration and growth. This phenomenon has been studied in the gastrointestinal tract, where blooms of facultative anaerobic Gammaproteobacteria, primarily Escherichia coli, often occur during colonic inflammation. In cystic fibrosis, Pseudomonas aeruginosa, another Gammaproteobacteria facultative anaerobe, can reduce nitrogen for anaerobic respiration and it blooms in the airways of the chronically inflamed cystic fibrosis lung. This review focuses on the evidence that inflammation can provide terminal electron acceptors for anaerobic respiration and can support blooms of facultative anaerobes, such as E. coli and P. aeruginosa in distinct, but similar, environments of the inflamed gastrointestinal and respiratory tracts.

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Authors
Scales, B. S., Dickson, R. P., & Huffnagle, G. B.
Affiliations
University of Michigan (US)
Corresponding author
Huffnagle, Gary B
Venue
Journal of Leukocyte Biology
Published
2016-06-30
Volume
100
Issue
5
Pages
943-950
ISSN
  • 0741-5400 (ISSN-L)
  • 1938-3673
OpenAlex
W2471545969
Cited by
109
References
85
Citations by year
2026: 9 · 2025: 11 · 2024: 14 · 2023: 8 · 2022: 13 · 2021: 21 · 2020: 13 · 2019: 7 · 2018: 5 · 2017: 3 · 2016: 5
FWCI
0.60
Type
journal article
Language
en
Open access
Locations
  • Journal of Leukocyte Biology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Deep Blue (University of Michigan) (submittedVersion)
Funders
  • U.S. National Institutes of Health
  • National Heart, Lung, and Blood Institute (R01HL114447, T32HL00774921)
  • Nesbitt Program for Cystic Fibrosis Research
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
Keywords
inflammation, gut microbiota, lung microbiome, facultative anaerobes, anaerobic respiration, reactive nitrogen species, nitrate, Escherichia coli, Pseudomonas aeruginosa, Gammaproteobacteria, colonic inflammation, cystic fibrosis, bacterial blooms, terminal electron acceptors
MeSH terms
Gastrointestinal Microbiome, Anaerobiosis, Colitis, Cystic Fibrosis, Escherichia coli Infections, Humans, Inflammation, Lung, Mucus, Nitric Oxide, Nitrogen, Oxidation-Reduction, Pseudomonas Infections, Gammaproteobacteria, Feedback, Physiological, Gastrointestinal Tract, Nitric Oxide Synthase Type II, Microbiota

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