KMID : 0545120220320010081
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Journal of Microbiology and Biotechnology 2022 Volume.32 No. 1 p.81 ~ p.90
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Effects of 3¡Ç-isovaleryl-4¡Ç-senecioylkhellactone from Peucedanum japonicum Thunberg on PMA-Stimulated Inflammatory Response in A549 Human Lung Epithelial Cells
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Hwang Da-Seul
Ryu Hyung-Won Park Ji-Won Kim Jung-Hee Kim Doo-Young Oh Jae-Hoon Kwon Ok-Kyoung Han Sang-Bae Ahn Kyung-Seop
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Abstract
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Peucedanum japonicum Thunberg (PJT) has been used in traditional medicine to treat colds, coughs, fevers, and other inflammatory diseases. The goal of this study was to investigate whether 3¡Ç-isovaleryl-4¡Ç-senecioylkhellactone (IVSK) from PJT has anti-inflammatory effects on lung epithelial cells. The anti-inflammatory effects of IVSK were evaluated using phorbol 12-myristate 13-acetate (PMA)-stimulated A549 cells and regular human lung epithelial cells as a reference. IVSK reduced the secretion of the inflammatory mediators interleukin (IL)-8 and monocyte chemoattractant protein-1 (MCP-1), and the mRNA expression of IL-6, IL-8, MCP-1, and IL-1¥â. Additionally, it inhibited the phosphorylation of I¥êB kinase (IKK), p65, I¥ê-B¥á, and mitogen-activated protein kinases (MAPKs) p38, JNK, and ERK in A549 cells stimulated with PMA. Moreover, the binding affinity of activator protein-1 (AP-1) and nuclear factor-¥êB (NF-¥êB) was significantly reduced in the luciferase assay, while nuclear translocation was markedly inhibited by IVSK in the immunocytochemistry. These findings indicate that IVSK can protect against inflammation through the AP-1 and NF-¥êB pathway and could possibly be used as a lead compound for the treatment of inflammatory lung diseases.
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KEYWORD
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3¡Ç-isovaleryl-4¡Ç-senecioylkhellactone, Peucedanum japonicum Thunberg, inflammation, NF-¥êB, AP-1
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