Abstract
Background
Endocannabinoid system is involved in the regulation of periodontal tissue homeostasis. Synthetic cannabinoid methanandamide (Meth-AEA) has an improved stability and affinity to cannabinoid receptors compared to its endogenous analogue anandamide. In the present study, we investigated the effect of methanandamide on the production of pro-inflammatory mediators in primary human periodontal ligament cells (hPdLCs).
Methods
hPdLCs were treated with Meth-AEA for 24 h and resulting production of interleukin (IL)-6, IL-8, and monocyte chemotactic protein (MCP)-1 was measured under normal condition as well as under inflammatory conditions mimicked by the presence of Porphyromonas gingivalis lipopolysaccharide (LPS). Additionally, the effect of Meth-AEA on the proliferation/viability of hPdLCs was measured by MTT method.
Results
Methanandamide at concentration of 10 µM significantly inhibited P. gingivalis LPS induced production of IL-6, IL-8, and MCP-1. Basal production of IL-6 and IL-8 was slightly enhanced by 10 µM Meth-AEA. No effect of Meth-AEA on the basal production of MCP-1 was observed. Proliferation/viability of hPdLCs was not affected by Meth-AEA in concentrations up to 10 µM and was significantly inhibited by 30 µM Meth-AEA.
Conclusion
Our study supports the influence of cannabinoid system on the inflammatory processes in periodontal tissue and its potential involvement in the progression of periodontal disease.
Effects of methanandamide on human periodontal ligament cells
