Cited by 129Trace Elements in HealthIron Metabolism and DisordersGut microbiota and health

Transition metal ions at the crossroads of mucosal immunity and microbial pathogenesis

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Diaz-Ochoa, Vladimir E., Jellbauer, Stefan, Klaus, Suzi, Raffatellu, Manuela·2014·Frontiers in Cellular and Infection Microbiology

Abstract

Transition metal ions are essential micronutrients for all living organisms. In mammals, these ions are often protein-bound and sequestered within cells, limiting their availability to microbes. Moreover, in response to infection, mammalian hosts further reduce the availability of metal nutrients by activating epithelial cells and recruiting neutrophils, both of which release metal-binding proteins with antimicrobial function. Microorganisms, in turn, have evolved sophisticated systems to overcome these limitations and acquire the metal ions essential for their growth. Here we review some of the mechanisms employed by the host and by pathogenic microorganisms to compete for transition metal ions, with a discussion of how evading "nutritional immunity" benefits pathogens. Furthermore, we provide new insights on the mechanisms of host-microbe competition for metal ions in the mucosa, particularly in the inflamed gut.

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Crossref · 10.3389/fcimb.2014.00002

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  • S100 proteins can be induced by IL-17 and IL-22, exert pro-inflammatory activity, and may promote chemotaxis of PMN.

    “In addition, S100 proteins can be induced by IL-17 and IL-22, and S100 proteins exert pro-inflammatory activity and may promote chemotaxis of PMN (233, 244).”

    From Macrophage defense mechanisms against intracellular bacteria (2015) · cites this paper as [244]

  • S100A8 and S100A9 form the heterodimeric complex calprotectin, which is mainly expressed by PMN.

    “Two of these proteins, S100A8 and S100A9, form a heterodimeric complex named calprotectin and are mainly expressed by PMN.”

    From Macrophage defense mechanisms against intracellular bacteria (2015) · cites this paper as [244]

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Authors
Diaz-Ochoa, V. E., Jellbauer, S., Klaus, S., & Raffatellu, M.
Affiliations
University of California, Irvine (US)
Corresponding author
Raffatellu, Manuela
Venue
Frontiers in Cellular and Infection Microbiology
Published
2014
Volume
4
Pages
2-2
ISSN
2235-2988 (ISSN-L)
OpenAlex
W1983281945
Cited by
129
References
143
Citations by year
2026: 4 · 2025: 8 · 2024: 4 · 2023: 8 · 2022: 10 · 2021: 10 · 2020: 8 · 2019: 8 · 2018: 8 · 2017: 16 · 2016: 17 · 2015: 20 · 2014: 8
FWCI
2.31
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Cellular and Infection Microbiology (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)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • National Institute of General Medical Sciences (T32GM008620)
  • National Institute of Allergy and Infectious Diseases (AI083663, R01AI083663, U54AI065359)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
transition metal ions, nutritional immunity, mucosal immunity, intestinal inflammation, metal-binding proteins, antimicrobial peptides, neutrophils, epithelial cells, pathogenic microorganisms, micronutrients
MeSH terms
Animals, Bacteria, Fungi, Humans, Ions, Metals, Mucous Membrane, Virulence, Immunity, Mucosal, Host-Pathogen Interactions

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