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A Noninvasive Test for MicroRNA Expression in Oral Squamous Cell Carcinoma
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A Noninvasive Test for MicroRNA Expression in Oral Squamous Cell Carcinoma
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A Noninvasive Test for MicroRNA Expression in Oral Squamous Cell Carcinoma
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Journal Article
A Noninvasive Test for MicroRNA Expression in Oral Squamous Cell Carcinoma
2018
Overview
MicroRNAs have recently been proposed as non-invasive biomarkers in Oral Squamous Cell Carcinoma (OSCC). The aim of this study was to analyze the expression of a panel of miRNAs in epithelial cells collected by oral brushing from OSCCs from regenerative areas after OSCC surgical resection and from their respective normal distant mucosa. Oral brushing specimens were collected from 24 healthy donors, 14 OSCC patients with specimens from tumour and normal distant mucosa, and from 13 patients who had OSCC resection, with samples from regenerative areas after OSCC resection and normal distant mucosa. Expression levels of eight targets (miR-21, miR-375, miR-345, miR-181b, miR-146a, miR-649, miR-518b, and miR-191) were evaluated by real-time Polymerase Chain Reaction (PCR). A highly significant between-group difference was found for miR-21 (F = 6.58, p < 0.001), miR-146a (F = 6.974, p < 0.001), and miR-191 (F = 17.07, p < 0.001). The major difference was observed between samples from healthy donors and from OSCC brushing, whereas no significant differences were observed between areas infiltrated by OSCC and their respective normal distant mucosa. Furthermore, altered expression of miR-146a and miR-191 was also observed in regenerative areas after OSCC resection. Conclusions: Oral brushing could be proposed as a noninvasive method to study microRNA expression in oral mucosa in OSCC patients.
Publisher
MDPI AG,MDPI
Subject
