Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2000-4-25
pubmed:abstractText
Candida albicans is a commensal yeast normally present in small numbers in the oral flora of a large proportion of humans. Colonization of the oral cavity by C. albicans involves the acquisition and maintenance of a stable yeast population. Micro-organisms are continually being removed from the oral cavity by host clearance mechanisms, and so, in order to survive and inhabit this eco-system, C. albicans cells have to adhere and replicate. The oral cavity presents many niches for C. albicans colonization, and the yeast is able to adhere to a plethora of ligands. These include epithelial and bacterial cell-surface molecules, extracellular matrix proteins, and dental acrylic. In addition, saliva molecules, including basic proline-rich proteins, adsorbed to many oral surfaces promote C. albicans adherence. Several adhesins present in the C. albicans cell wall have now been partially characterized. Adherence involves lectin, protein-protein, and hydrophobic interactions. As C. albicans cells evade host defenses and colonize new environments by penetrating tissues, they are exposed to new adherence receptors and respond by expressing alternative adhesins. The relatively small number of commensal Candida cells in the oral flora raises the possibility that strategies can be devised to prevent oral colonization and infection. However, the variety of oral niches and the complex adherence mechanisms of the yeast mean that such a goal will remain elusive until more is known about the contribution of each mechanism to colonization.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1045-4411
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
359-83
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:10759414-Acrylic Resins, pubmed-meshheading:10759414-Adhesins, Bacterial, pubmed-meshheading:10759414-Antigens, Fungal, pubmed-meshheading:10759414-Candida albicans, pubmed-meshheading:10759414-Candidiasis, Oral, pubmed-meshheading:10759414-Cell Adhesion, pubmed-meshheading:10759414-Cell Division, pubmed-meshheading:10759414-Colony Count, Microbial, pubmed-meshheading:10759414-Dental Materials, pubmed-meshheading:10759414-Epithelial Cells, pubmed-meshheading:10759414-Extracellular Matrix Proteins, pubmed-meshheading:10759414-Fungal Proteins, pubmed-meshheading:10759414-Humans, pubmed-meshheading:10759414-Ligands, pubmed-meshheading:10759414-Mouth, pubmed-meshheading:10759414-Saliva, pubmed-meshheading:10759414-Salivary Proteins and Peptides, pubmed-meshheading:10759414-Surface Properties
pubmed:year
1999
pubmed:articleTitle
Oral colonization by Candida albicans.
pubmed:affiliation
Department of Oral Sciences and Orthodontics, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review, Research Support, Non-U.S. Gov't