Cited by 945Gut microbiota and healthAntibiotic Resistance in BacteriaClostridium difficile and Clostridium perfringens research

Vancomycin-resistant Enterococcus domination of intestinal microbiota is enabled by antibiotic treatment in mice and precedes bloodstream invasion in humans

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Ubeda, Carles, Taur, Ying, Jenq, Robert R., Equinda, Michele J., Son, Tammy, Samstein, Miriam, Viale, Agnes, Socci, Nicholas D. +3 more·2010·Journal of Clinical Investigation

Abstract

Bloodstream infection by highly antibiotic-resistant bacteria, such as vancomycin-resistant Enterococcus (VRE), is a growing clinical problem that increasingly defies medical intervention. Identifying patients at high risk for bacterial sepsis remains an important clinical challenge. Recent studies have shown that antibiotics can alter microbial diversity in the intestine. Here, we characterized these effects using 16s rDNA pyrosequencing and demonstrated that antibiotic treatment of mice enabled exogenously administered VRE to efficiently and nearly completely displace the normal microbiota of the small and large intestine. In the clinical setting, we found that intestinal domination by VRE preceded bloodstream infection in patients undergoing allogeneic hematopoietic stem cell transplantation. Our results demonstrate that antibiotics perturb the normal commensal microbiota and set the stage for intestinal domination by bacteria associated with hospital-acquired infections. Thus, high-throughput DNA sequencing of the intestinal microbiota could identify patients at high risk of developing bacterial sepsis.

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  • Single-center studies have linked post-HCT intestinal microbiota features to relapse, GVHD, infection, organ toxicity, and overall survival.

    “Each of these outcomes, as well as overall survival, has been associated in single-center studies with features of the intestinal microbiota in the period after hematopoietic-cell transplantation.2–4,8–15”
  • Vancomycin depletes Gram-negative commensals even though it targets Gram-positive bacteria.

    “Gram− commensals can be depleted by vancomycin, which is a Gram+-targeting drug [83].”
  • VRE colonizes the intestine after antibiotic treatment before spreading to the bloodstream and is a major threat for hospitalized patients.

    “VRE colonizes the intestine following antibiotic treatment, prior to spreading to the bloodstream, and thus, represents a major threat for hospitalized patients [83].”
  • The taxonomic composition of the gut microbiota changes throughout the gastrointestinal tract according to nutrient availability, mucus structure, pH and oxygen availability.

    “The taxonomic composition of the gut microbiota changes throughout the gastrointestinal tract, according to nutrient availability, mucus structure, pH and oxygen availability [1–6].”

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Research works printed but not linked: 2

  1. Hooper LV, Midtvedt T, Gordon JI. How host- microbial interactions shape the nutrient environ- ment of the mammalian intestine. Annu Rev Nutr. 2002;22:283-307.
  2. Kingsley RA, van Amsterdam K, Kramer N, Baum- ler AJ. The shdA gene is restricted to serotypes of Salmonella enterica subspecies I and contributes to efficient and prolonged fecal shedding. Infect Immun. 2000;68(5):2720-2727.

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Authors
Ubeda, C., Taur, Y., Jenq, R. R., Equinda, M. J., Son, T., Samstein, M., Viale, A., Socci, N. D., van den Brink, M. R. M., Kamboj, M., & Pamer, E. G.
Affiliations
Memorial Sloan Kettering Cancer Center (US)
Venue
Journal of Clinical Investigation
Published
2010-12-01
Volume
120
Issue
12
Pages
4332-4341
ISSN
0021-9738 (ISSN-L)
OpenAlex
W1979573684
Cited by
943
References
51
Citations by year
2026: 52 · 2025: 48 · 2024: 55 · 2023: 58 · 2022: 94 · 2021: 72 · 2020: 76 · 2019: 90 · 2018: 64 · 2017: 66 · 2016: 56 · 2015: 49 · 2014: 44 · 2013: 51 · 2012: 46
FWCI
15.49
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Cancer Research Institute
  • National Institutes of Health (4r37ai039031-21, CA023766)
  • National Cancer Institute (P01CA023766, R01CA107096, P30CA008748)
  • National Institute of General Medical Sciences (T32GM007739)
  • National Institute of Allergy and Infectious Diseases (R37-AI039031, R01AI080455, K23AI083880, R01AI042135)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Antibiotic Resistance in Bacteria
  • Health Sciences › Medicine › Infectious Diseases › Clostridium difficile and Clostridium perfringens research
Keywords
vancomycin-resistant enterococci, antibiotic-induced dysbiosis, gut microbiota, bacterial sepsis, bloodstream infection, allogeneic hematopoietic stem cell transplantation, nosocomial infections, sepsis risk prediction
MeSH terms
Animals, Anti-Bacterial Agents, Base Sequence, Cross Infection, DNA, Bacterial, DNA, Ribosomal, Humans, Intestines, Mice, Inbred C57BL, Bacteremia, Gram-Positive Bacterial Infections, Enterococcus, Hematopoietic Stem Cell Transplantation, Vancomycin Resistance, Mice, Metagenome

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