New regulators of biofilm development in Candida glabrata
Open accessAbstract
Biofilm formation plays an important role in fungal pathogenesis. In this work, we used a genetic screen in order to identify and characterize genes involved in the formation of biofilms by the opportunistic fungal pathogen Candida glabrata. We identified the Cst6p transcription factor as a negative regulator of the EPA6 gene that encodes an adhesin central to C. glabrata biofilm formation. Analysis of single and double mutant strains showed that Cst6p acts in a pathway independent of the Yak1/Sir4 pathway also known to regulate expression of EPA6 and consequently biofilm formation. In contrast, we showed that the chromatin remodelling Swi/Snf complex positively regulates biofilm formation in C. glabrata. RT-qPCR experiments demonstrated that EPA6 expression, and thus biofilm formation, depends on the integrity of the Sir complex. Finally, we showed that Swi/Snf-dependent regulation of biofilm formation is adhesin-specific.
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The adhesin encoded by EPA6 plays a central role in biofilm formation in C. glabrata.
“Among these, the adhesin encoded by the EPA6 gene, which is regulated by multiple factors including the CgYak1p kinase, subtelomeric silencing, chromatin remodeling Swi/Snf complex components and the transcriptional factor CgCst6, plays a central role [36,37,53].”
From Candida glabrata: A Lot More Than Meets the Eye (2019) · cites this paper as [53]
Other adhesins, cell wall proteins and RNA polymerase II mediator complex subunits including Epa3, Epa7, Epa12, Awp4-6, Pwp1, Pwp3, Med12, Med13 and Med15 have also been implicated in biofilm formation.
“Additionally, other adhesins, cell wall proteins and RNA polymerase II mediator complex subunits including Epa3, Epa7, Epa12, Awp4–6, Pwp1, Pwp3, Med12, Med13 and Med15 have also been implicated in biofilm formation [36,37,40,53,54].”
From Candida glabrata: A Lot More Than Meets the Eye (2019) · cites this paper as [53]
Cell wall fluctuations, immunoevasion, and intracellular persistence may be crucial factors in the great ability of Candida glabrata to persist during multiple antifungal treatments and to develop multidrug resistance.
“Cell wall fluctuations, but mostly its immunoevasion and intracellular persistence, may be the crucial factors in the great ability of C. glabrata to persist in the course of multiple antifungal treatments and to develop multidrug resistance [69,70].”
From Candida glabrata Biofilms: How Far Have We Come? (2017) · cites this paper as [69]
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- Authors
- Riera, M., Mogensen, E., d’Enfert, C., & Janbon, G.
- Affiliations
- Institut Pasteur (FR)
- Corresponding author
- Janbon, Guilhem
- Venue
- Research in Microbiology
- Publisher
- Elsevier BV
- Published
- 2012-05
- Volume
- 163
- Issue
- 4
- Pages
- 297-307
- ISSN
- 0769-2609 (ISSN-L)
- 0923-2508
- OpenAlex
- W1972913355
- Cited by
- 43
- References
- 59
- Citations by year
- 2026: 2 · 2025: 1 · 2024: 4 · 2023: 2 · 2022: 5 · 2021: 2 · 2020: 1 · 2019: 5 · 2018: 3 · 2017: 4 · 2016: 5 · 2015: 6 · 2014: 2 · 2013: 1
- FWCI
- 1.16
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Research in Microbiology (publishedVersion)
- PubMed (publishedVersion)
- HAL (submittedVersion)
- DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
- Funders
- Johns Hopkins University
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
- Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
- Keywords
- Candida glabrata, biofilm formation, SIR complex, SWI/SNF chromatin remodeling, transcriptional regulation, genetic screen, fungal pathogenesis
- MeSH terms
- Fungal Proteins, Genes, Regulator, Transcription Factors, Gene Expression Regulation, Fungal, Biofilms, Candida glabrata
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