An evaluation of the inflammatory response of lipopolysaccharide-treated primary dental pulp cells with regard to calcium silicate-based cements.
- Author:
Wei-Yun LAI
1
;
Chia-Tze KAO
1
;
Chi-Jr HUNG
1
;
Tsui-Hsien HUANG
1
;
Ming-You SHIE
2
Author Information
- Publication Type:Journal Article
- MeSH: Calcium Compounds; Dental Cements; Dental Pulp; drug effects; metabolism; Humans; Inflammation; chemically induced; metabolism; Interleukin-1beta; metabolism; Lipopolysaccharides; pharmacology; Silicates
- From: International Journal of Oral Science 2014;6(2):94-98
- CountryChina
- Language:English
- Abstract: This study compared the biological changes of lipopolysaccharide (LPS)-treated dental pulp (DP) cells directly cultured on mineral trioxide aggregate (MTA) and calcium silicate (CS) cements. DP cells were treated with LPS for 24 h. Then, the LPS-treated DP cells were cultured on MTA or CS cements. Cell viability, cell death mechanism and interleukin (IL)-1β expressions were analysed. A one-way analysis of variance was used to evaluate the significance of the differences between the means. A significantly higher IL-1β expression (2.9-fold) was found for LPS-treated cells (P<0.05) compared with DP cells without LPS treatment at 24 h. Absorbance values of LPS-treated cells cultured on CS cement were higher than a tissue culture plate. A significant difference (P<0.05) in cell viability was observed between cells on CS and MTA cements 24 h after seeding. At 48 h, a high concentration of Si (5 mM) was released from MTA, which induced LPS-treated DP cell apoptosis. The present study demonstrates that CS cement is biocompatible with cultured LPS-treated DP cells. MTA stimulates inflammation in LPS-treated DP cells, which leads to greater IL-1β expression and apoptosis.
