Journal of Oral Science Research ›› 2018, Vol. 34 ›› Issue (4): 380-383.DOI: 10.13701/j.cnki.kqyxyj.2018.04.011

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Effects of N-butanol Extract of Cucumissativus Seeds on Proliferation and Odontogenic Differentiation of Human Dental Pulp Stem Cells.

CHE Jing-yi, LI Yan-ping, PAN Shuang, HE Li-na, NIU Yu-mei*   

  1. Department of Operative Dentistry and Endodontics, School of Stomatology, Harbin Medical University, Harbin 150001, China.
  • Received:2017-10-29 Online:2018-04-28 Published:2018-04-25

Abstract: Objective: To investigate the effects of n-butanol extract of Cucumis sativus seeds (CSB) on proliferation and odontogenic differentiation of human dental pulp stem cells (hDPSCs). Methods: HDPSCs were isolated and exposed to different concentrations of CSB solutions. The proliferation ability was evaluated by Cell Counting Kit-8 (CCK-8) assay. The odontogentic potential of hDPSCs was assessed by alkaline phosphatase (ALP) staining and activity assay. In addition, Western blot analysis was conducted to identify the expressions of dentin sialophosphoprotein (DSPP) and Collagen I (COL I) which were related proteins on odontogenic differentiation of hDPSCs. Results: CCK-8 assay showed that CSB significantly enhanced the proliferation of hDPSCs at a concentration of 100 mg/L, while CSB remarkably suppressed the growth of hDPSCs at a higher concentration of 500 mg/L. The hDPSCs cultured with 100 mg/L CSB obviously induced positive ALP staining and had higher ALP activity compared with the control group. Furthermore, Western blot analysis demonstrated that the expression levels of odontogenic proteins DSPP and COL I were significantly up-regulated in 100 mg/L CSB-treated hDPSCs compared with the control group. Conclusion: The results indicate that an appropriate concentration of CSB could enhance the proliferation and odontogenic differentiation of hDPSCs.

Key words: N-butanol extract of cucumis sativus seeds, Human dental pulp stem cells, Proliferation, Odontogenic differentiation