JOURNAL ARTICLE

Ginsenoside Rg1 of Panax ginseng stimulates the proliferation, odontogenic/osteogenic differentiation and gene expression profiles of human dental pulp stem cells

Ping Wang, Xi Wei, Fujun Zhang, Kai Yang, Chen Qu, Huiqiong Luo, Longzhu He
Phytomedicine 2014 January 15, 21 (2): 177-83
24075212
Ginsenoside Rg1 is one of the major active components of Panax ginseng C. A. Mey. Human dental pulp stem cells (hDPSCs) play an important role in the dentin formation, reparation and tooth tissue engineering. This study investigated the effects of ginsenoside Rg1 on the proliferation, odontogenic differentiation of hDPSCs and revealed the underlying molecular mechanisms. [³H]-thymidine incorporation assay and cell cycle analysis were applied to investigate the proliferation of hDPSCs after the treatment of ginsenoside Rg1. Immunocytochemistry analysis and fluorescent quantitative reverse transcriptase-polymerase chain reaction (FQ-PCR) were performed to evaluate the odontogenic differentiation of hDPSCs. Gene and protein expressions of bone morphogenetic protein-2 (BMP-2) and fibroblast growth factor 2 (FGF2) were detected by FQ-PCR and enzyme-linked immunosorbent assay. The Roche Nimblegen Whole Human Genome Expression profile microarray was used to detected representative gene expression profiles of hDPSCs by ginsenoside Rg1. The results indicated that ginsenoside Rg1 significantly increased hDPSCs proliferation (p<0.05). Gene expressions of DSPP, ALP, OCN, BMP-2, FGF2 and protein expressions of BMP-2 and FGF2 were increased compared with the untreated group (p<0.05). Gene expression profile analysis revealed that 2059 differentially expressed genes were detected by ginsenoside Rg1. Ginsenoside Rg1 promoted the proliferation and differentiation of hDPSCs through alteration of gene expression profiles.

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