Cited by 328Salmonella and Campylobacter epidemiologyS100 Proteins and AnnexinsBacterial Genetics and Biotechnology

Zinc Sequestration by the Neutrophil Protein Calprotectin Enhances Salmonella Growth in the Inflamed Gut

Open access
Liu, Janet Z., Jellbauer, Stefan, Poe, Adam J., Ton, Vivian, Pesciaroli, Michele, Kehl-Fie, Thomas E., Restrepo, Nicole A., Hosking, Martin P. +9 more·2012·Cell Host & Microbe

Abstract

Neutrophils are innate immune cells that counter pathogens by many mechanisms, including release of antimicrobial proteins such as calprotectin to inhibit bacterial growth. Calprotectin sequesters essential micronutrient metals such as zinc, thereby limiting their availability to microbes, a process termed nutritional immunity. We find that while calprotectin is induced by neutrophils during infection with the gut pathogen Salmonella Typhimurium, calprotectin-mediated metal sequestration does not inhibit S. Typhimurium proliferation. Remarkably, S. Typhimurium overcomes calprotectin-mediated zinc chelation by expressing a high affinity zinc transporter (ZnuABC). A S. Typhimurium znuA mutant impaired for growth in the inflamed gut was rescued in the absence of calprotectin. ZnuABC was also required to promote the growth of S. Typhimurium over that of competing commensal bacteria. Thus, our findings indicate that Salmonella thrives in the inflamed gut by overcoming the zinc sequestration of calprotectin and highlight the importance of zinc acquisition in bacterial intestinal colonization.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.chom.2012.01.017

Cites

50 of 50 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Metal depletion strategies of the host affect pathogenic bacteria and commensal/protective flora, and bacteria that evolved strategies to outcompete metal restrictions benefit and may become more pathogenic.

    “However metal depletion strategies of the host not only affect pathogenic bacteria but also the commensal/protective flora, and thus bacteria that have evolved strategies to outcompete these metal restrictions benefit from a developmental advantage and may become more pathogenic (240).”

    From Macrophage defense mechanisms against intracellular bacteria (2015) · cites this paper as [240]

  • Zinc plays central roles for the function of structural proteins and is essential for immune cell proliferation and differentiation.

    “The transition metal zinc plays central roles for the function of structural proteins and is essential for immune cell proliferation and differentiation (240).”

    From Macrophage defense mechanisms against intracellular bacteria (2015) · cites this paper as [240]

  • Calprotectin enhances S. enterica growth in the inflamed gut, presumably because S. enterica can outcompete the gut microbiota for limited zinc.

    “Calprotectin enhances S. enterica growth in the inflamed gut, presumably because S. enterica can outcompete the gut microbiota for limited zinc (79).”

    From Transition Metals and Virulence in Bacteria (2016) · cites this paper as [79]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Liu, J. Z., Jellbauer, S., Poe, A. J., Ton, V., Pesciaroli, M., Kehl-Fie, T. E., Restrepo, N. A., Hosking, M. P., Edwards, R. A., Battistoni, A., Pasquali, P., Lane, T. E., Chazin, W. J., Vogl, T., Roth, J., Skaar, E. P., & Raffatellu, M.
Affiliations
  • University of California, Irvine (US)
  • Vanderbilt University (US)
  • University of Rome Tor Vergata (IT)
  • Istituto Superiore di Sanità (IT)
  • University of Münster (DE)
Corresponding author
Raffatellu, Manuela
Venue
Cell Host & Microbe
Publisher
Elsevier BV
Published
2012-03
Volume
11
Issue
3
Pages
227-239
ISSN
1931-3128 (ISSN-L)
OpenAlex
W2039176236
Cited by
328
References
50
Citations by year
2026: 13 · 2025: 23 · 2024: 11 · 2023: 15 · 2022: 21 · 2021: 25 · 2020: 21 · 2019: 20 · 2018: 21 · 2017: 26 · 2016: 29 · 2015: 32 · 2014: 30 · 2013: 26 · 2012: 15
FWCI
50.66
Type
journal article
Language
en
Open access
Locations
  • Cell Host & Microbe (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Cineca Institutional Research Information System (Tor Vergata University) (submittedVersion, cc-by-nc-nd)
Funders
  • National Cancer Institute (P30CA062203)
  • National Institute of General Medical Sciences (R01GM062112, GM62112-08S1)
  • National Institute of Allergy and Infectious Diseases (AI083663, AI083619, T32 AI60573, AI073843, AI091771, R01AI083663, R21AI083619, T32AI060573, R56AI091771, R01AI073843)
  • National Institute of Neurological Disorders and Stroke (R01NS041249, NS 041249)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Salmonella and Campylobacter epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › S100 Proteins and Annexins
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
Keywords
calprotectin, zinc sequestration, Salmonella typhimurium, nutritional immunity, neutrophils, intestinal inflammation, intestinal colonization, innate immunity
MeSH terms
Animals, Bacterial Proteins, Cecum, Diarrhea, Feces, Immunity, Innate, Inflammation, Mice, Inbred C57BL, Neutrophils, Protein Binding, Salmonella Infections, Animal, Salmonella typhimurium, Transcription, Genetic, Zinc, Mice, Knockout, ATP-Binding Cassette Transporters, Leukocyte L1 Antigen Complex, Mice, Host-Pathogen Interactions

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review