Plant-derived compounds have been reported to possess anti-inflammatory abilities contained inhibited β-hexosaminidase, ROS and NO release. Essential oils are natural volatile complex compounds that are characterized by a strong scent and produced by aromatic plants as various plant-derived compounds. The essential oil extracted from Zanthoxylum coreanum Nakai (Z. coreanum) has various functional properties; however, little information is available regarding its anti-allergic inflammatory. A total of 17 compounds were detected in Z. coreanum oil, and the main component was estragole (50.86%). The tested Z. coreanum oil and estragole statistically inhibited the release of β-hexosaminidase induced by antigen stimulation in RBL-2H3 cells. This Z. coreanum oil and estragole may stimulate the secretion of active oxygen (ROS) or nitric oxide (NO) which are considered to involved in anti-inflammatory events. Moreover, it is suggested that Z. coreanum oil and estragole may negatively control the production of SNARE proteins (VAMP7) at the tran-scriptional and translational levels in common. These results demonstrate that Z. coreanum oil and its major component, estragole, possess potent anti-inflammatory abilities that are coupled with antioxidant properties.

본 연구에서는 두충 추출물이 RBL-2H3 세포의 β-hexosaminidase의 분비 억제와 HaCaT keratinocytes피부장벽의 회복과 관련한 filaggrin, transglutaminase-1 (TGase-1), cornified cell envelope(CE)의 발현에 미치는 영향에 관하여 연구하였다. β-hexosaminidase 방출 억제 능은 13% 효능을 확인하였고, 피부장벽기능의 회복과 관련된 인자들은 발현과 활성의 정도가 매우 우수한 것을 확인하였다. 각질형성세포의 분화를 판단할 수 있는 CE 측정에서는 두충추출물이 양성대조군보다 더 좋은 효능을 나타내기도 하였다. 따라서 두충 추출물은 β-hexosaminidase 분비 억제에 효과가 있으며, 손상된 피부장벽강화에 영향을 미치는각질형성세포의 분화 촉진에 효과가 있음을 확인하였다.

The present study was conducted to investigate the anti-allergic reaction with Glycyrrhiza uralensis. We examined cell viability, β-hexosaminidase release, IL-4 and IL-13 mRNA expression from RBL-2H3 cell after pre-treatment with 0, 100, 250, 500, 1000μg/ml of Glycyrrhiza uralensis water extracts. Effects of Glycyrrhiza uralensis on the degranulation and pro-inflammatory cytokines (IL-4 and IL-13) expression were evaluated with β-hexosaminidase assay, and RT-PCR analysis. We observed that Glycyrrhiza uralensis concentrations from 100μg/ml to 1000μg/ml had no effect on cell survival. The release of β-hexosaminidase decreased significantly with all concentrations of Glycyrrhiza uralensis extracts. The expression of the IL-4 and IL-13 mRNA were decreased by Glycyrrhiza uralensis in dose-dependent manner. These results that Glycyrrhiza uralensis has an anti-histamin effects and controls IL-4, IL-13 secretion on allergic reaction.