Proteomics

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Metaproteomic profiling of saliva in subjects with periodontitis, dental caries and orally healthy controls


ABSTRACT: The composition of the salivary microbiota has been reported to differentiate between patients with periodontitis, dental caries and orally healthy individuals. Thus, the purpose of the present investigation was to compare metaproteomic profiles of saliva in oral health and disease. Stimulated saliva samples were collected from 10 patients with periodontitis, 10 patients with dental caries and 10 orally healthy individuals. Samples were analyzed by means of shotgun proteomics. 4161 different proteins were recorded out of which 1946 and 2090 were of bacterial and human origin respectively. The human proteomic profile displayed significant overexpression of the complement system and inflammatory mediators in periodontitis and dental caries. Bacterial proteomic profiles and functional annotation were very similar in health and disease. Data revealed multiple potential salivary proteomic biomarkers of oral disease. In addition, comparable bacterial functional profiles were observed in periodontitis, dental caries and oral health, which suggest that the salivary microbiota predominantly thrives in a planktonic state expressing no characteristic disease-associated metabolic activity. Future large-scale longitudinal studies are warranted to reveal the full potential of proteomic analysis of saliva as a biomarker of oral health and disease.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (ncbitaxon:9606)

SUBMITTER: Jesper Velgaard Olsen  

PROVIDER: MSV000080763 | MassIVE | Wed Mar 29 11:20:00 BST 2017

SECONDARY ACCESSION(S): PXD004319

REPOSITORIES: MassIVE

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Publications

Metaproteomics of saliva identifies human protein markers specific for individuals with periodontitis and dental caries compared to orally healthy controls.

Belstrøm Daniel D   Jersie-Christensen Rosa R RR   Lyon David D   Damgaard Christian C   Jensen Lars J LJ   Holmstrup Palle P   Olsen Jesper V JV  

PeerJ 20160914


<h4>Background</h4>The composition of the salivary microbiota has been reported to differentiate between patients with periodontitis, dental caries and orally healthy individuals. To identify characteristics of diseased and healthy saliva we thus wanted to compare saliva metaproteomes from patients with periodontitis and dental caries to healthy individuals.<h4>Methods</h4>Stimulated saliva samples were collected from 10 patients with periodontitis, 10 patients with dental caries and 10 orally h  ...[more]

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