Extracellular enolase of Candida albicans is involved in colonization of mammalian intestinal epithelium

Bibliographic Details
Title: Extracellular enolase of Candida albicans is involved in colonization of mammalian intestinal epithelium
Authors: Richard Cardoso Silva, Ana Carolina Barbosa Padovan, Daniel C Pimenta, Renata Carmona Ferreira, Claudio Vieira Silva, Marcelo R. S. Briones
Source: Frontiers in Cellular and Infection Microbiology, Vol 4 (2014)
Publisher Information: Frontiers Media S.A., 2014.
Publication Year: 2014
Collection: LCC:Microbiology
Subject Terms: Candida albicans, cellular adhesion, Gene sharing, enolase, epithellium, Microbiology, QR1-502
More Details: Enolase is secreted by C. albicans and is present in its biofilms although its extracellular function is unknown. Here we show that extracellular enolase mediates the colonization of small intestine mucosa by C. albicans. Assays using intestinal mucosa disks show that C. albicans adhesion is inhibited, in a dose dependent mode, either by pretreatment of intestinal epithelium mucosa disks with recombinant C. albicans enolase (70% at 0.5 mg/ml enolase) or by pretreatment of C. albicans yeasts with anti-enolase antibodies (48% with 20 µg antiserum). Also using flow cytometry, immunoblots of conditioned media and confocal microscopy we demonstrate that enolase is present in biofilms and that the extracellular enolase is not an artifact due to cell lysis, but must represent functional secretion of a stable form. This is the first direct evidence that C. albicans extracellular enolase mediates colonization on its primary translocation site. Also, because enolase is encoded by a single locus in C. albicans, its dual role peptide, as glycolytic enzyme and extracellular peptide, is a remarkable example of gene sharing in fungi.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2235-2988
Relation: http://journal.frontiersin.org/Journal/10.3389/fcimb.2014.00066/full; https://doaj.org/toc/2235-2988
DOI: 10.3389/fcimb.2014.00066
Access URL: https://doaj.org/article/3a617fa9ac1b43c89687fd1967f5ae85
Accession Number: edsdoj.3a617fa9ac1b43c89687fd1967f5ae85
Database: Directory of Open Access Journals
More Details
ISSN:22352988
DOI:10.3389/fcimb.2014.00066
Published in:Frontiers in Cellular and Infection Microbiology
Language:English