Cited by 94Iron Metabolism and DisordersTuberculosis Research and EpidemiologyImmune Response and Inflammation

The role of iron in infections with intracellular bacteria

Collins, Helen L·2003·Immunology Letters

Abstract

The requirement for iron as a critical component for cellular processes has long been appreciated. During infection with intracellular bacteria, iron is required by both the host cell and the pathogen that inhabits the host cell. Macrophages require iron as a cofactor for the execution of important antimicrobial effector mechanisms, including the NADPH dependent oxidative burst and the production of nitrogen radicals catalysed by the inducible nitric oxide synthase. On the other side of the equation, intracellular bacteria such as Salmonella typhimurium and Mycobacterium tuberculosis have an obligate requirement for iron to support their growth and survival inside cells. This brief report summarises the background to our work on iron modulation in infections with these two organisms and highlights key observations on how modulation of host iron status disturbs the equilibrium between host and pathogen and can determine the outcome of infection.

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Crossref · 10.1016/s0165-2478(02)00229-8

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22 of 22 references verified0 citation errors · 0 not checkable

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  • The ability of pathogens to obtain Fe from Tf, Lf, Ft, Hb, and other iron-containing proteins of their host is central to whether they live or die.

    “The ability of pathogens to obtain Fe from Tf, Lf, Ft, Hb, and other iron-containing proteins of their host is central to whether they live or die [14].”
  • Deprivation of Fe in vivo and in vitro severely reduces the pathogenicity of M. tuberculosis, C. burnetii, L. pneumophila, and S. typhimurium.

    “In fact, it has been documented that deprivation of Fe in vivo and in vitro severely reduces the pathogenicity of M. tuberculosis, C. burnetii, L. pneumophila, and S. typhimurium [13–15].”
  • Intracellular bacteria such as Legionella pneumophila, Coxiella burnetii, Salmonella typhimurium, and Mycobacterium tuberculosis have an obligate requirement for Fe to support their growth and survival inside host cells.

    “On the other hand, intracellular bacteria such as Legionella pneumophila, Coxiella burnetii, Salmonella typhimurium, and Mycobacterium tuberculosis have an obligate requirement for Fe to support their growth and survival inside host cells [14].”
  • During evolution, the shared requirement of micro- and macroorganisms for Fe has shaped the pathogen-host relationship.

    “During evolution, the shared requirement of micro- and macroorganisms for this important nutrient has shaped the pathogen-host relationship [14].”
  • Two general mechanisms of Fe acquisition in intracellular parasites have been described: siderophore-mediated Fe acquisition by cognate receptors and receptor-mediated Fe acquisition from host Fe-binding proteins.

    “Two general mechanisms of Fe acquisition in intracellular parasites have been described: siderophore-mediated Fe acquisition by cognate receptors and receptor-mediated Fe acquisition from host Fe-binding proteins [14].”

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Authors
Collins, H. L.
Affiliations
King's College London (GB)
Corresponding author
Collins, Helen L
Venue
Immunology Letters
Publisher
Elsevier BV
Published
2003-01
Volume
85
Issue
2
Pages
193-195
ISSN
0165-2478 (ISSN-L)
OpenAlex
W2021896054
Cited by
94
References
22
Citations by year
2026: 3 · 2025: 1 · 2024: 3 · 2023: 4 · 2022: 3 · 2021: 5 · 2020: 3 · 2019: 6 · 2018: 1 · 2017: 2 · 2016: 2 · 2015: 7 · 2014: 6 · 2013: 5 · 2012: 9
FWCI
2.14
Type
journal article
Language
en
Open access
closed
Locations
  • Immunology Letters (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
iron metabolism, intracellular bacterial infection, macrophages, respiratory burst, inducible nitric oxide synthase, Salmonella typhimurium, Mycobacterium tuberculosis
MeSH terms
Animals, Bacterial Infections, Host-Parasite Interactions, Iron, Macrophages, Mycobacterium tuberculosis, Salmonella typhimurium

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