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KMID : 0811720110150010009
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Korean Journal of Physiology & Pharmacology
2011 Volume.15 No. 1 p.9 ~ p.16
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Anti-inflammatory Activity of 1-docosanoyl Cafferate Isolated from Rhus verniciflua in LPS-stimulated BV2 Microglial Cells
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Lee Jae-Won
Cheong Il-Young
Kim Hae-Sung
Lee Jae-Jun
Lee Yong-Suk
Kwon Yong-Soo
Kim Myong-Jo
Lee Hee-Jae
Kim Sung-Soo
Chun Wan-Joo
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Abstract
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Although various derivatives of caffeic acid have been reported to possess a wide variety of biological activities such as protection of neuronal cells against excitotoxicity, the biological activity of 1-docosanoyl cafferate (DC) has not been examined. The objective of the present study was to evaluate the anti-inflammatory effects of DC, isolated from the stem bark of Rhus verniciflua, on lipopolysaccharide (LPS)-stimulated BV2 microglial cells. Pretreatment of cells with DC significantly attenuated LPS-induced NO production, and mRNA and protein expression of iNOS in a concentration- dependent manner. DC also significantly suppressed LPS-induced release of cytokines such as TNF-? and IL-1?. Consistent with the decrease in cytokine release, DC dose-dependently and significantly attenuated LPS-induced mRNA expression of these cytokines. Furthermore, DC significantly suppressed LPS-induced degradation of IKB, which retains NF-kB in the cytoplasm. Therefore, nuclear translocation of NF-kB induced by LPS stimulation was significantly suppressed with DC pretreatment. Taken together, the present study suggests that DC exerts its anti-inflammatory activity through the suppression of NF-kB translocation to the nucleus.
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KEYWORD
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1-Docosanoyl cafferate (DC), BV2 microglial cells, Lipopolysaccharide, Cytokines, iNOS, NF-kB
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