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KMID : 1123920220360020066
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Korean Journal of Oriental Physiology and Pathology
2022 Volume.36 No. 2 p.66 ~ p.72
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Effects of Flos Lonicerae Japonicae Water Extract on Cytokine Production in RAW 264.7 Mouse Macrophages
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Park Wan-Su
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Abstract
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Flos Lonicerae Japonicae (the flower buds of Lonicera japonica Thunberg) has been used as an antibacterial and antiviral drug in Korean Medicine. The aim of this study is to evaluate the effect of Flos Lonicerae Japonicae water extract (FL) on the production of cytokines in RAW 264.7 mouse macrophages stimulated by lipopolysaccharide (LPS). After 24 h treatment, the production of various cytokines from RAW 264.7 was measured with multiplex cytokine assay using Bio-Plex 200 suspension array system. FL at concentrations of 50, 100, and 200 μg/mL significantly inhibited productions of tumor necrosis factor-α, macrophage inflammatory protein (MIP)-1β, and MIP-2 in LPS-stimulated RAW 264.7 cells; FL at concentrations of 100 and 200 μg/mL significantly inhibited productions of leukemia inhibitory factor, LIX (CXCL5), and RANTES in LPS-stimulated RAW 264.7 cells; FL at concentrations of 200 μg/mL significantly inhibited productions of granulocyte-macrophage colony-stimulating factor and macrophage colony-stimulating factor in LPS-stimulated RAW 264.7 cells; FL at concentrations of 50 and 100 μg/mL significantly increased productions of interleukin (IL)-10 in LPS-stimulated RAW 264.7 cells; FL at concentrations of 50, 100, and 200 μg/mL significantly increased productions of IL-6 and interferon gamma-induced protein-10 in LPS-stimulated RAW 264.7 cells; FL at concentrations of 100 and 200 μg/mL significantly increased productions of monocyte chemoattractant protein-1 in LPS-stimulated RAW 264.7 cells. Taken together, these data mean that FL might modulate productions of cytokines, chemokines, and growth factor in LPS-stimulated macrophages. Further study needs to verify the exact mechanism for modulatory activities of FL with macrophages.
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KEYWORD
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Lonicerae japonicae flos, Lonicera japonica, Macrophage, Lipopolysaccharide, Cytokine, Chemokine, Growth factor
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