Host-pathogen interactions and virulence-associated genes during Candida albicans oral infections

Ronny Martin, Betty Wächtler, Martin Schaller, Duncan Wilson, Bernhard Hube

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Oral infections with Candida albicans are very common diseases in even only mildly immunocompromised patients. By using genome-wide microarrays, in vitro infection models and samples from patients with pseudomembranous candidiasis, several genes have been identified which encode known and unknown fungal factors associated with oral infection. The expression of selected genes has been investigated via qRT-PCR in both in vitro models and in vivo samples from patients. Several lines of evidence suggest that fungal morphology plays a key role in adhesion to and invasion into oral epithelial cells and mutants lacking regulators of hyphal formation are attenuated in their ability to invade and damage epithelial cells. Adhesion is mediated by hyphal-associated factors such as Hwp1 and the Als adhesin family. Hyphal formation facilitates epithelial invasion via two routes: active penetration and induced endocytosis. While induced endocytosis is predominantly mediated by the adhesin and invasin Als3, active penetration seems to be supported by hydrolase activity and mechanical pressure. Expression profiles reflect the morphological switch and an adaptive response to neutral pH, non-glucose carbon sources, and nitrosative stress.
Original languageEnglish
Pages (from-to)417-422
Number of pages6
JournalInternational Journal of Medical Microbiology: IJMM
Volume301
Issue number5
DOIs
Publication statusPublished - Jun 2011

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Host-Pathogen Interactions
Candida albicans
Virulence
Endocytosis
Infection
Epithelial Cells
Genes
Aptitude
Candidiasis
Immunocompromised Host
Hydrolases
Carbon
Genome
Gene Expression
Pressure
Polymerase Chain Reaction
In Vitro Techniques

Keywords

  • Candida albicans
  • candidiasis, oral
  • epithelial cells
  • gene expression profiling
  • gene expression regulation, fungal
  • host-pathogen interactions
  • humans
  • reverse transcriptase polymerase chain reaction
  • virulence
  • virulence factors

Cite this

Host-pathogen interactions and virulence-associated genes during Candida albicans oral infections. / Martin, Ronny; Wächtler, Betty; Schaller, Martin; Wilson, Duncan; Hube, Bernhard.

In: International Journal of Medical Microbiology: IJMM, Vol. 301, No. 5, 06.2011, p. 417-422.

Research output: Contribution to journalArticle

Martin, Ronny ; Wächtler, Betty ; Schaller, Martin ; Wilson, Duncan ; Hube, Bernhard. / Host-pathogen interactions and virulence-associated genes during Candida albicans oral infections. In: International Journal of Medical Microbiology: IJMM. 2011 ; Vol. 301, No. 5. pp. 417-422.
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