Cited by 123Fungal Infections and StudiesFungal and yeast genetics researchBacterial Infections and Vaccines

Cryptococcus neoformans Gene Expression during Experimental Cryptococcal Meningitis

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Steen, B. R., Zuyderduyn, S., Toffaletti, D. L., Marra, M., Jones, S. J. M., Perfect, J. R., Kronstad, J.·2003·Eukaryotic Cell

Abstract

Cryptococcus neoformans, an encapsulated basidiomycete fungus of medical importance, is capable of crossing the blood-brain barrier and causing meningitis in both immunocompetent and immunocompromised individuals. To gain insight into the adaptation of the fungus to the host central nervous system (CNS), serial analysis of gene expression (SAGE) was used to characterize the gene expression profile of C. neoformans cells recovered from the CNS of infected rabbits. A SAGE library was constructed, and 49,048 tags were sequenced; 16,207 of these tags were found to represent unique sequences or tag families. Of the 304 most-abundant tags, 164 were assigned to a putative gene for subsequent functional grouping. The results (as determined according to the number of tags that identified genes encoding proteins required for these functions) indicated that the C. neoformans cells were actively engaged in protein synthesis, protein degradation, stress response, small-molecule transport, and signaling. In addition, a high level of energy requirement of the fungal cells was suggested by a large number of tags that matched putative genes for energy production. Taken together, these findings provide the first insight into the transcriptional adaptation of C. neoformans to the host environment and identify the set of fungal genes most highly expressed during cerebrospinal fluid infection.

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Crossref · 10.1128/ec.2.6.1336-1349.2003

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Authors
Steen, B. R., Zuyderduyn, S., Toffaletti, D. L., Marra, M., Jones, S. J. M., Perfect, J. R., & Kronstad, J.
Affiliations
  • University of British Columbia (CA)
  • BC Cancer Agency (CA)
Corresponding author
Kronstad, J.
Venue
Eukaryotic Cell
Published
2003-12
Volume
2
Issue
6
Pages
1336-1349
ISSN
  • 1535-9778 (ISSN-L)
  • 1535-9786
OpenAlex
W2158372574
Cited by
123
References
102
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 3 · 2022: 2 · 2021: 4 · 2020: 4 · 2019: 5 · 2017: 5 · 2016: 4 · 2015: 4 · 2014: 19 · 2013: 8 · 2012: 4
FWCI
5.14
Type
journal article
Language
en
Open access
Locations
  • Eukaryotic Cell (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Burroughs Wellcome Fund
  • University of Oklahoma
  • Michael Smith Health Research BC
  • Canadian Institutes of Health Research
  • National Institute of Allergy and Infectious Diseases (R56AI028388, AI28388, R01AI028388)
Topics
  • Health Sciences › Medicine › Epidemiology › Fungal Infections and Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Immunology and Microbiology › Microbiology › Bacterial Infections and Vaccines
Keywords
Cryptococcus neoformans, cryptococcal meningitis, gene expression profiling, serial analysis of gene expression, blood-brain barrier penetration, central nervous system adaptation, cerebrospinal fluid infection, rabbit model, stress response, energy metabolism, protein synthesis, small molecule transport
MeSH terms
Animals, Cerebrospinal Fluid, Cryptococcus neoformans, Genes, Fungal, Rabbits, Gene Library, Gene Expression Regulation, Fungal, Databases, Factual, Meningitis, Cryptococcal, Expressed Sequence Tags, Gene Expression Profiling

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