Cited by 75Antifungal resistance and susceptibilityFungal and yeast genetics researchFungal Infections and Studies

Inactivation of Transcription Factor Gene ACE2 in the Fungal Pathogen Candida glabrata Results in Hypervirulence

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Kamran, Mohammed, Calcagno, Ana-Maria, Findon, Helen, Bignell, Elaine, Jones, Michael D., Warn, Peter, Hopkins, Philip, Denning, David W. +4 more·2004·Eukaryotic Cell

Abstract

During an infection, the coordinated orchestration of many factors by the invading organism is required for disease to be initiated and to progress. The elucidation of the processes involved is critical to the development of a clear understanding of host-pathogen interactions. For Candida species, the inactivation of many fungal attributes has been shown to result in attenuation. Here we demonstrate that the Candida glabrata homolog of the Saccharomyces cerevisiae transcription factor gene ACE2 encodes a function that mediates virulence in a novel way. Inactivation of C. glabrata ACE2 does not result in attenuation but, conversely, in a strain that is hypervirulent in a murine model of invasive candidiasis. C. glabrata ace2 null mutants cause systemic infections characterized by fungal escape from the vasculature, tissue penetration, proliferation in vivo, and considerable overstimulation of the proinflammatory arm of the innate immune response. Compared to the case with wild-type fungi, mortality occurs much earlier in mice infected with C. glabrata ace2 cells, and furthermore, 200-fold lower doses are required to induce uniformly fatal infections. These data demonstrate that C. glabrata ACE2 encodes a function that plays a critical role in mediating the host-Candida interaction. It is the first virulence-moderating gene to be described for a Candida species.

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Crossref · 10.1128/ec.3.2.546-552.2004

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Authors
Kamran, M., Calcagno, A.-M., Findon, H., Bignell, E., Jones, M. D., Warn, P., Hopkins, P., Denning, D. W., Butler, G., Rogers, T., Mühlschlegel, F. A., & Haynes, K.
Affiliations
  • Imperial College London (GB)
  • Department of Infectious Diseases, Imperial College London, London
  • University of Manchester (GB)
  • University College Dublin (IE)
  • Research School of Biosciences, University of Kent Canterbury, United Kingdom
Corresponding author
Haynes, Ken
Venue
Eukaryotic Cell
Published
2004-04
Volume
3
Issue
2
Pages
546-552
ISSN
  • 1535-9778 (ISSN-L)
  • 1535-9786
OpenAlex
W2126597545
Cited by
75
References
31
Citations by year
2026: 1 · 2025: 1 · 2024: 5 · 2023: 4 · 2022: 1 · 2021: 2 · 2020: 1 · 2019: 2 · 2018: 3 · 2017: 1 · 2016: 4 · 2015: 4 · 2014: 5 · 2013: 4 · 2012: 6
FWCI
4.05
Type
journal article
Language
en
Open access
Locations
  • Eukaryotic Cell (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Kent Academic Repository (University of Kent) (submittedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion)
Funders
Wellcome Trust
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 glabrata, hypervirulence, fungal virulence, invasive candidiasis, host-pathogen interaction, innate immune response, inflammatory cytokines, systemic fungal infection, tissue penetration, virulence genes
MeSH terms
Alleles, Animals, Candidiasis, Chitinases, DNA-Binding Proteins, Fungal Proteins, Interferon-gamma, Liver, Lung, Phenotype, Transcription Factors, Tumor Necrosis Factor-alpha, Virulence, Interleukin-6, Gene Silencing, Saccharomyces cerevisiae Proteins, Candida glabrata, Mice

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