Biomaterial Database

MicroRNA profiling in gingival crevicular fluid of periodontitis-a pilot study. 2017

Akira Saito, and Masafumi Horie, and Kenichiro Ejiri, and Akira Aoki, and Sayaka Katagiri, and Shogo Maekawa, and Shinta Suzuki, and Sophannary Kong, and Tsuneto Yamauchi, and Yoko Yamaguchi, and Yuichi Izumi, and Mitsuhiro Ohshima

Department of Respiratory Medicine Graduate School of Medicine The University of Tokyo Japan.

Periodontitis is a chronic inflammatory disease that affects the interface of teeth and surrounding tissues. Gingival crevicular fluid (GCF) is an exudate of the periodontal tissues and can be collected from the gap between the tooth and gum (gingival sulcus or periodontal pocket) with paper strips. Testing of GCF is a low-cost and minimally invasive procedure. In a variety of diseases, microRNAs (miRNAs) in body fluids are implicated in pathogenesis, and are suggested as potential diagnostic biomarkers. Here, we profiled miRNAs in GCF (two chronic periodontitis, one aggressive periodontitis, and five healthy subjects) using miRCURY LNA™ Universal RT microRNA PCR System, which yielded quantitative measures of more than 600 miRNAs. Through this analysis, we found that miRNA profiles in GCF of periodontitis patients are distinct from those of healthy controls. We further selected 40 miRNAs and confirmed their differential expression patterns in different subjects (five chronic periodontitis, one aggressive periodontitis, and six healthy subjects) using a custom miRNA PCR panel. This is the first demonstration of miRNA profiling in GCF and its alteration in periodontitis. Our findings suggest that a subset of miRNAs in GCF holds potential as a biomarker for periodontitis.