Journal article
Overview of carbon and nitrogen catabolite metabolism in the virulence of human pathogenic fungi
Molecular microbiology, Vol.107(3), pp.277-297
02/2018
DOI: 10.1111/mmi.13887
PMCID: PMC5777862
PMID: 29197127
Abstract
Summary
It is estimated that fungal infections, caused most commonly by Candida albicans, Aspergillus fumigatus and Cryptococcus neoformans, result in more deaths annually than malaria or tuberculosis. It has long been hypothesized the fungal metabolism plays a critical role in virulence though specific nutrient sources utilized by human pathogenic fungi in vivo has remained enigmatic. However, the metabolic utilisation of preferred carbon and nitrogen sources, encountered in a host niche‐dependent manner, is known as carbon catabolite and nitrogen catabolite repression (CCR, NCR), and has been shown to be important for virulence. Several sensory and uptake systems exist, including carbon and nitrogen source‐specific sensors and transporters, that allow scavenging of preferred nutrient sources. Subsequent metabolic utilisation is governed by transcription factors, whose functions and essentiality differ between fungal species. Furthermore, additional factors exist that contribute to the implementation of CCR and NCR. The role of the CCR and NCR‐related factors in virulence varies greatly between fungal species and a substantial gap in knowledge exists regarding specific pathways. Further elucidation of carbon and nitrogen metabolism mechanisms is therefore required in a fungal species‐ and animal model‐specific manner in order to screen for targets that are potential candidates for anti‐fungal drug development.
Fungal infections that result in the death of immunocompromised subjects have risen steadily over the last few years. The metabolic utilisation of preferred carbon and nitrogen sources, encountered in a host niche‐specific manner, has been shown to be an important virulence determinant. Characterisation of preferred nutrient source utilisation, including sensing and uptake, by pathogenic fungi has only been partially characterised, and further species‐specific elucidation is required, in order to uncover targets for anti‐fungal therapies.
Details
- Title: Subtitle
- Overview of carbon and nitrogen catabolite metabolism in the virulence of human pathogenic fungi
- Creators
- Laure Nicolas Annick Ries - Universidade de São PauloSarah Beattie - Dartmouth CollegeRobert A. Cramer - Dartmouth CollegeGustavo H. Goldman - Universidade de São Paulo
- Resource Type
- Journal article
- Publication Details
- Molecular microbiology, Vol.107(3), pp.277-297
- DOI
- 10.1111/mmi.13887
- PMID
- 29197127
- PMCID
- PMC5777862
- ISSN
- 0950-382X
- eISSN
- 1365-2958
- Number of pages
- 21
- Grant note
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (302372/2014‐8) National Institute of General Medical Sciences (T32GM008704 and T32AI007519) National Institute of Allergy and Infectious Diseases (2R01AI081838) Fundação de Amparo à Pesquisa do Estado de São Paulo (2016/07870‐9) National Institute of General Medicine Sciences (P30GM106394) Burroughs Wellcome Fund Cystic Fibrosis Foundation
- Language
- English
- Date published
- 02/2018
- Academic Unit
- Stead Family Department of Pediatrics; Infectious Disease (Pediatrics)
- Record Identifier
- 9984353888402771
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