Antioxidant and antiasthmatic effects of saucerneol D in a mouse model of airway inflammation

作者：Jung Ju Young; Lee Kyoung youl; Lee Mee Young; Jung Dayoung; Cho Eun Sang; Son Hwa Young^*

来源：International Immunopharmacology, 2011, 11(6): 698-705.

DOI：10.1016/j.intimp.2011.01.015

• Saucerneol D
• Asthma
• Eosinophilia
• Cytokine
• Heme oxygenase-1

Chronic airway inflammation is a hallmark of asthma, which is an immune-based disease. We evaluated the ability of saucerneol D, a tetrahydrofuran-type sesquilignan isolated from Saururus chinensis, to regulate airway inflammation in an ovalbumin (OVA)-induced airway inflammation model. Furthermore, we determined whether heme oxygenase (HO)-1 was required for the protective activity of saucerneol D. The airways of OVA-sensitized mice exposed to an OVA challenge developed eosinophilia and mucus hypersecretion and exhibited increased cytokine levels. Mice were administered saucerneol D orally at doses of 20 and 40 mg/kg once daily on days 26-30. Saucerneol D administered orally significantly inhibited the number of OVA-induced inflammatory cells and the production of immunoglobulin E as well as Th2-type cytokines. Histopathology studies revealed a marked decrease in lung inflammation and goblet cell hyperplasia after saucerneol D treatment. In addition, saucerneol D induced HO-1 and led to a marked decrease in OVA-induced reactive oxygen species and malondialdehyde and an increase in superoxide dismutase and glutathione in lung tissues. These antioxidant effects were correlated with HO-1 induction. In our experiments, saucerneol D treatment reduced airway inflammation and suppressed oxidative stress in an OVA-induced asthma model.

• 出版日期2011-6