Comparative adherence of Candida albicans and Candida dubliniensis to human buccal epithelial cells and extracellular matrix proteins

Jordan, Rachael P. C., Williams, David Wynne ORCID: https://orcid.org/0000-0002-7351-5131, Moran, G. P., Coleman, D. C. and Sullivan, D. J. 2014. Comparative adherence of Candida albicans and Candida dubliniensis to human buccal epithelial cells and extracellular matrix proteins. Medical Mycology 52 (3) , pp. 254-263. 10.1093/mmy/myt032

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Abstract

Candida albicans and Candida dubliniensis are very closely related pathogenic yeast species. Despite their close relationship, C. albicans is a far more successful colonizer and pathogen of humans. The purpose of this study was to determine if the disparity in the virulence of the two species is attributed to differences in their ability to adhere to human buccal epithelial cells (BECs) and/or extracellular matrix proteins. When grown overnight at 30°C in yeast extract peptone dextrose, genotype 1 C. dubliniensis isolates were found to be significantly more adherent to human BECs than C. albicans or C. dubliniensis genotypes 2–4 (P < 0.001). However, when the yeast cells were grown at 37°C, no significant difference between the adhesion of C. dubliniensis genotype 1 and C. albicans to human BECs was observed, and C. dubliniensis genotype 1 and C. albicans adhered to BECs in significantly greater numbers than the other C. dubliniensis genotypes (P < 0.001). Using surface plasmon resonance analysis, C. dubliniensis isolates were found to adhere in significantly greater numbers than C. albicans to type I and IV collagen, fibronectin, laminin, vitronectin, and proline-rich peptides. These data suggest that C. albicans is not more adherent to epithelial cells or matrix proteins than C. dubliniensis and therefore other factors must contribute to the greater levels of virulence exhibited by C. albicans.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Dentistry
Subjects:	Q Science > QR Microbiology R Medicine > RK Dentistry
Uncontrolled Keywords:	Candida dubliniensis; Candida albicans; adhesion; buccal epithelial cells; extracellular matrix proteins
Publisher:	Oxford University Press
ISSN:	1369-3786
Date of Acceptance:	23 December 2013
Last Modified:	25 Oct 2022 09:47
URI:	https://orca.cardiff.ac.uk/id/eprint/60013

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