Cited by 199Antifungal resistance and susceptibilityFungal and yeast genetics researchFungal Infections and Studies

Candida albicans iron acquisition within the host

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Almeida, Ricardo S., Wilson, Duncan, Hube, Bernhard·2009·FEMS Yeast Research

Abstract

As a commensal and opportunistic pathogen, Candida albicans possesses a range of determinants that contribute to survival, persistence and virulence. Among this repertoire of fitness and virulence attributes are iron acquisition factors and pathways, which allow fungal cells to gain this essential mineral in the iron-poor environment of the host. The aim of this review is to present the strategies used by C. albicans to exploit host iron reservoirs and their impact on C. albicans pathogenicity. Because iron in the human host is mostly linked to host proteins, pathogens such as C. albicans must possess mechanisms to gain iron from these proteins. Here, we introduce the most important groups of human proteins, including haemoglobin, transferrin, lactoferrin and ferritin, which contain iron and that are potential iron sources for invading microorganisms. We then summarize and discuss the known and proposed strategies by which C. albicans exploits or may exploit iron from host proteins and compare these with strategies from other pathogenic microorganisms.

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Crossref · 10.1111/j.1567-1364.2009.00570.x

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  • The expression of the ferritin receptor, Als3, increases in the hyphae-associated program, and inhibition of the hyphal form leads to its diminished expression and reduced capability of ferritin-binding.

    “For example, the expression of the ferritin receptor, Als3, increases in the hyphae-associated program, and inhibition of the hyphal form leads to its diminished expression and reduced capability of ferritin-binding (Almeida et al., 2009).”

    From Iron at the Centre of Candida albicans Interactions (2018) · cites this paper as Almeida et al., 2009

    The “Ferritin as a potential iron source” section identifies Als3 as hyphal-associated and reports that a mutant unable to form hyphae did not express ALS3 and had reduced ferritin binding. But it also says ferritin binding does not depend on hyphal morphology itself: another mutant lacked true hyphae yet still expressed ALS3 and bound ferritin. The claim overgeneralizes the effect of inhibiting hyphal formation. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Due to the spontaneous generation of toxic free radicals by ferrous iron, a multicopper oxidase enzyme is involved in the reconversion of the produced ferrous iron to a ferric state; a reaction known as ferroxidation.

    “Due to the spontaneous generation of toxic free radicals by ferrous iron, a multicopper oxidase enzyme is involved in the reconversion of the produced ferrous iron to a ferric state; a reaction known as ferroxidation (reviewed by Kosman, 2003; Almeida et al., 2009).”

    From Iron at the Centre of Candida albicans Interactions (2018) · cites this paper as Almeida et al., 2009

  • A functional ferric reductase has a ferric reductase domain and a FAD and/or NAD binding domain.

    “A functional ferric reductase has a ferric reductase domain and a FAD and/or NAD binding domain.”

    From Iron at the Centre of Candida albicans Interactions (2018) · cites this paper as Almeida et al., 2009

  • These domains were absent in two of the reported reductases while another reductase was lacking a FAD and NAD binding domain.

    “These domains were absent in two of the reported reductases while another reductase was lacking a FAD and NAD binding domain (reviewed by Almeida et al., 2009).”

    From Iron at the Centre of Candida albicans Interactions (2018) · cites this paper as Almeida et al., 2009

  • Within the C. albicans genome, there are as much as 17 ferric reductase-related genes but not all these genes are likely to be a ferric reductase.

    “Within the C. albicans genome, there are as much as 17 ferric reductase-related genes but not all these genes are likely to be a ferric reductase.”

    From Iron at the Centre of Candida albicans Interactions (2018) · cites this paper as Almeida et al., 2009

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Authors
Almeida, R. S., Wilson, D., & Hube, B.
Affiliations
  • Universidade de São Paulo (BR)
  • Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie e. V. - Hans-Knöll-Institut (HKI) (DE)
Corresponding author
Hube, Bernhard
Venue
FEMS Yeast Research
Published
2009-11
Volume
9
Issue
7
Pages
1000-1012
ISSN
  • 1567-1356 (ISSN-L)
  • 1567-1364
OpenAlex
W2160042020
Cited by
199
References
120
Citations by year
2026: 2 · 2025: 13 · 2024: 10 · 2023: 11 · 2022: 11 · 2021: 14 · 2020: 10 · 2019: 10 · 2018: 5 · 2017: 17 · 2016: 9 · 2015: 14 · 2014: 18 · 2013: 21 · 2012: 11
FWCI
1.26
Type
journal article
Language
en
Open access
Locations
  • FEMS Yeast Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Health Sciences › Medicine › Epidemiology › Fungal Infections and Studies
Keywords
Candida albicans, iron acquisition, fungal virulence, hemoglobin, transferrin, lactoferrin, ferritin, host-pathogen interaction, fungal pathogenicity
MeSH terms
Candida albicans, Humans, Iron, Models, Biological, Virulence

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