Cited by 301Antifungal resistance and susceptibilityFungal and yeast genetics researchBacterial biofilms and quorum sensing

Candida albicans forms biofilms on the vaginal mucosa

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Harriott, M. M., Lilly, E. A., Rodriguez, T. E., Fidel, P. L., Noverr, M. C.·2010·Microbiology

Abstract

Current understanding of resistance and susceptibility to vulvovaginal candidiasis challenges existing paradigms of host defence against fungal infection. While abiotic biofilm formation has a clearly established role during systemic Candida infections, it is not known whether C. albicans forms biofilms on the vaginal mucosa and the possible role of biofilms in disease. In vivo and ex vivo murine vaginitis models were employed to examine biofilm formation by scanning electron and confocal microscopy. C. albicans strains included 3153A (lab strain), DAY185 (parental control strain), and mutants defective in morphogenesis and/or biofilm formation in vitro (efg1/efg1 and bcr1/bcr1). Both 3153A and DAY815 formed biofilms on the vaginal mucosa in vivo and ex vivo as indicated by high fungal burden and microscopic analysis demonstrating typical biofilm architecture and presence of extracellular matrix (ECM) co-localized with the presence of fungi. In contrast, efg1/efg1 and bcr1/bcr1 mutant strains exhibited weak or no biofilm formation/ECM production in both models compared to wild-type strains and complemented mutants despite comparable colonization levels. These data show for the first time that C. albicans forms biofilms in vivo on vaginal epithelium, and that in vivo biotic biofilm formation requires regulators of biofilm formation (BCR1) and morphogenesis (EFG1).

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  • Vaginal mucosal mouse models show similar biofilm architectures, with clear yeast, hyphae, and extracellular matrix throughout biofilms formed on top of mucosal layers.

    “Vaginal mucosal mouse models, both in vivo (live mice inoculated with C. albicans on the vaginal mucosa) and ex vivo (vaginas excised from euthanized mice and then inoculated with C. albicans in tissue culture plates), show similar biofilm architectures, with clear yeast, hyphae, and extracellular matrix evident throughout the biofilms formed on top of the mucosal layers (72).”

    From <i>Candida albicans</i> Biofilms and Human Disease (2015) · cites this paper as [72]

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Authors
Harriott, M. M., Lilly, E. A., Rodriguez, T. E., Fidel, P. L., & Noverr, M. C.
Affiliations
  • Wayne State University (US)
  • Louisiana State University Health Sciences Center New Orleans (US)
Venue
Microbiology
Published
2010-12-01
Volume
156
Issue
12
Pages
3635-3644
ISSN
  • 1350-0872 (ISSN-L)
  • 1465-2080
OpenAlex
W2063801124
Cited by
301
References
35
Citations by year
2026: 10 · 2025: 14 · 2024: 13 · 2023: 20 · 2022: 19 · 2021: 26 · 2020: 27 · 2019: 24 · 2018: 16 · 2017: 25 · 2016: 21 · 2015: 26 · 2014: 25 · 2013: 16 · 2012: 9
FWCI
7.23
Type
journal article
Language
en
Open access
Locations
  • Microbiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Louisiana Board of Regents
  • Carnegie Mellon University
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (R01 AI72406-01, R01AI072406, R01AI32556, R01AI032556)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
Keywords
Candida albicans, biofilm formation, vaginal mucosa, vaginal candidiasis, vaginal epithelium, extracellular matrix, BCR1, EFG1, morphogenesis, fungal virulence
MeSH terms
Animals, Candida albicans, Candidiasis, Female, Humans, Mice, Inbred C57BL, Mucous Membrane, Vagina, Biofilms, Dioxygenases, Mice

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