Open AccessDesign and validation of a DNA-microarray for phylogenetic analysis of bacterial communities in different oral samples and dental implants
Author(s) -
Carola Parolin,
Barbara Giordani,
Rogers Alberto Ñahui Palomino,
Elena Biagi,
Marco Severgnini,
Clarissa Consolandi,
Giada Caredda,
Stefano Storelli,
L Strohmenger,
Beatrice Vitali
Publication year - 2017
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/s41598-017-06743-6
Subject(s) - fusobacteria , firmicutes , proteobacteria , bacteroidetes , actinobacteria , biology , fusobacterium , saliva , microbiology and biotechnology , oral microbiology , bacteria , bacteroides , 16s ribosomal rna , genetics , biochemistry
The quali-quantitative characterization of the oral microbiota is crucial for an exhaustive knowledge of the oral ecology and the modifications of the microbial composition that occur during periodontal pathologies. In this study, we designed and validated a new phylogenetic DNA-microarray (OralArray) to quickly and reliably characterize the most representative bacterial groups that colonize the oral cavity. The OralArray is based on the Ligation Detection Reaction technology associated to Universal Arrays (LDR-UA), and includes 22 probe sets targeted to bacteria belonging to the phyla Firmicutes , Proteobacteria , Actinobacteria , Bacteroidetes , Fusobacteria , and Spirochaete . The tool is characterized by high specificity, sensitivity and reproducibility. The OralArray was successfully tested and validated on different oral samples (saliva, lingual plaque, supragingival plaque, and healing cap) collected from 10 healthy subjects. For each specimen, a microbial signature was obtained, and our results established the presence of an oral microbial profile specific for each subject. Moreover, the tool was applied to evaluate the efficacy of a disinfectant treatment on the healing caps before their usage. The OralArray is, thus, suitable to study the microbiota associated with various oral sites and to monitor changes arising from therapeutic treatments.