• Arch Pharm Res · Mar 2012

    Anti-inflammatory effects of (Z)-ligustilide through suppression of mitogen-activated protein kinases and nuclear factor-κB activation pathways.

    • Ji Won Chung, Ran Joo Choi, Eun-Kyoung Seo, Joo-Won Nam, Mi-Sook Dong, Eun Myoung Shin, Lian Yu Guo, and Yeong Shik Kim.
    • Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 151-742, Korea.
    • Arch Pharm Res. 2012 Mar 1; 35 (4): 723-32.

    AbstractThe roots of Angelica tenuissima have been commonly used for the treatment of cardiovascular diseases and menstrual discomfort in Asian countries, such as China and Korea. The primary volatile flavor components are essential oil ingredients, phthalide lactones. In this study, (Z)-ligustilide was tested for its anti-inflammatory activities in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. We found that (Z)-ligustilide strongly inhibitis the induction of LPS-induced inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) at both the mRNA and protein levels in a dose-dependent manner. The transcriptional activity of nuclear factor kappa B (NF-B) was also down-regulated in a concentration-dependent manner. Further study revealed that (Z)-ligustilide inhibited the phosphorylation and subsequent degradation of IBα, an inhibitor protein of NF-B. In addition, (Z)-ligustilide inhibited the phosphorylation of p38 mitogen-activated protein kinase (p38 MAPK), extracellular signal-regulated kinase (ERK) and c-Jun NH(2)-terminal kinase (JNK) in a dose-dependent manner. Taken together, these data suggest that (Z)-ligustilide can exert its antiinflammatory effects by regulating the NF-B and MAPK signal pathways.

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