The dried root of () has been widely used in Chinese traditional medicine for various diseases such as inflammation, osteoarthritis, infections, mild anemia, fatigue, and high blood pressure. Searching for the secondary metabolites of has been mainly conducted. However, the bioactivity of coumarins in the plant remains unexplored. Therefore, this study was designed to evaluate the anti-inflammatory activity of glabralactone, a coumarin compound from , using and models, and to elucidate the underlying molecular mechanisms of action. Glabralactone effectively inhibited nitric oxide production in lipopolysaccharide- (LPS-) stimulated RAW264.7 macrophage cells. The downregulation of LPS-induced mRNA and protein expression of iNOS, TNF-, IL-1, and miR-155 was found by glabralactone. The activation of NF-B and TRIF-dependent IRF-3 pathway was also effectively suppressed by glabralactone in LPS-stimulated macrophages. Glabralactone (5 and 10 mg/kg) exhibited an anti-inflammatory activity with the reduction of paw edema volume in carrageenan-induced rat model, and the expressions of iNOS and IL-1 proteins were suppressed by glabralactone in the paw soft tissues of the animal model. Taken together, glabralactone exhibited an anti-inflammatory activity in and models. These findings reveal that glabralactone might be one of the potential components for the anti-inflammatory activity of and may be prioritized in the development of a chemotherapeutic agent for the treatment of inflammatory diseases.
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Adaptor Proteins, Vesicular Transport
Angelica sinensis
Animals
Anti-Inflammatory Agents
Coumarins
Edema
Interferon Regulatory Factor-3
Lipopolysaccharides
Mice
MicroRNAs
NF-kappa B
Nitric Oxide
Nitric Oxide Synthase Type II
RAW 264.7 Cells
Rats
Signal Transduction
Adaptor Proteins, Vesicular Transport
Anti-Inflammatory Agents
Coumarins
Interferon Regulatory Factor-3
Irf3 protein, mouse
Lipopolysaccharides
MIRN155 microRNA, rat
MicroRNAs
NF-kappa B
Ticam1 protein, rat
Nitric Oxide
Nitric Oxide Synthase Type II
