From attachment to damage

defined genes of Candida albicans mediate adhesion, invasion and damage during interaction with oral epithelial cells

Betty Wächtler, Duncan Wilson, Katja Haedicke, Frederic Dalle, Bernhard Hube

Research output: Contribution to journalArticle

126 Citations (Scopus)
6 Downloads (Pure)

Abstract

Candida albicans frequently causes superficial infections by invading and damaging epithelial cells, but may also cause systemic infections by penetrating through epithelial barriers. C. albicans is an unusual pathogen because it can invade epithelial cells via two distinct mechanisms: induced endocytosis, analogous to facultative intracellular enteropathogenic bacteria, and active penetration, similar to plant pathogenic fungi. Here we investigated the molecular basis of C. albicans epithelial interactions. By systematically assessing the contributions of defined fungal pathways and factors to different stages of epithelial interactions, we provide an expansive portrait of the processes and activities involved in epithelial infection. We strengthen the concept that hyphal formation is critical for epithelial invasion. Importantly, our data support a model whereby initial epithelial invasion per se does not elicit host damage, but that C. albicans relies on a combination of contact-sensing, directed hyphal extension, active penetration and the expression of novel pathogenicity factors for further inter-epithelial invasion, dissemination and ultimate damage of host cells. Finally, we explore the transcriptional landscape of C. albicans during the early stages of epithelial interaction, and, via genetic analysis, identify ICL1 and PGA34 as novel oral epithelial pathogenicity factors.
Original languageEnglish
Article numbere17046
Number of pages14
JournalPloS ONE
Volume6
Issue number2
DOIs
Publication statusPublished - 23 Feb 2011

Fingerprint

Candida
Virulence Factors
Candida albicans
adhesion
mouth
epithelial cells
Adhesion
Genes
Epithelial Cells
Pathogens
Fungi
Bacteria
genes
pathogenicity
Infection
Concept Formation
infection
plant pathogenic fungi
endocytosis
Endocytosis

Keywords

  • Caco-2 cells
  • Candida albicans
  • candidiasis, oral
  • cell adhesion
  • epithelial cells
  • fungal proteins
  • genes, fungal
  • glyoxylates
  • humans
  • isocitrate lyase
  • mouth
  • stress, physiological
  • transcription, genetic
  • transcriptome
  • up-regulation

Cite this

From attachment to damage : defined genes of Candida albicans mediate adhesion, invasion and damage during interaction with oral epithelial cells. / Wächtler, Betty; Wilson, Duncan; Haedicke, Katja; Dalle, Frederic; Hube, Bernhard.

In: PloS ONE, Vol. 6, No. 2, e17046, 23.02.2011.

Research output: Contribution to journalArticle

Wächtler, Betty ; Wilson, Duncan ; Haedicke, Katja ; Dalle, Frederic ; Hube, Bernhard. / From attachment to damage : defined genes of Candida albicans mediate adhesion, invasion and damage during interaction with oral epithelial cells. In: PloS ONE. 2011 ; Vol. 6, No. 2.
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