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http://dx.doi.org/10.5933/JKAPD.2019.46.2.219

Gene Expression of Supernumerary Dental Pulp Related to the Subculture Speed: A Pilot Study  

Lee, Yookyung (Department of Pediatric Dentistry, School of Dentistry, Dankook University)
Kim, Jongsoo (Department of Pediatric Dentistry, School of Dentistry, Dankook University)
Shin, Jisun (Department of Pediatric Dentistry, School of Dentistry, Dankook University)
Kim, Jongbin (Department of Pediatric Dentistry, School of Dentistry, Dankook University)
Publication Information
Journal of the korean academy of Pediatric Dentistry / v.46, no.2, 2019 , pp. 219-225 More about this Journal
Abstract
The purpose of this study was to investigate the odontoblast gene expression related to the subculture speed of supernumerary dental pulp stem cells (sDPSCs). The stem cell is undifferentiated cells which has the ability to differentiate into various cells. Specific stimulation or environment induces cell differentiation, and these differentiation leads to bone or muscle formation. 20 sDPSCs were obtained from 20 children under aseptic condition. During the culture through the 10th passage, the third passage cells which showed short subculture period and 10th passage cells which showed long subculture period were earned. Each cell was divided into differentiated group and non-differentiated group. Quantitative real-time polychain reaction (q-RT-PCR) was performed for each group. The genes related to odontoblast differentiation, Alkaline Phosphatase (ALP), Osteocalcin (OCN), Osteonectin (ONT), Dentin sialophosphoprotein (DSPP) and Dentin matrix acidic phosphoprotein 1 (DMP-1), were measured. Differentiated cells showed more gene expression levels. Undifferentiated cells showed higher gene expression level in 10th passages but differentiated cells showed higher gene expression level in 3rd passages. Cells that showed faster subculture period showed relatively lower gene expression level except for OCN and DSPP.
Keywords
Supernumerary Dental Pulp Stem Cells; Odontoblasts;
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