망개나무 추출물의 NF-κB 및 MAPK 신호전달 억제를 통한 항염증 효과

Anti-inflammatory Effect of Berchemia berchemiaefolia Leaves through Inhibition of NF-κB and MAPK Signaling Activation in LPS-stimulated RAW264.7 Cells

Berchemia berchemiaefolia (Makino) Koidz. is found not only in korea, but also in japan and is known as a rare plant all over the world. In this study, we evaluated anti-inflammatory effect of B. berchemiaefolia (Makino) Koidz. leaves (BBK-L) in LPS-stimulated RAW264.7 cells. BBK-L inhibited the generation of NO through the suppression of iNOS experession. BBK-L attenuated the expression of iNOS, COX-2, TNF-α, IL-1β, IL-6 induced by LPS. BBK-L decreased LPS-mediated IκB-α degradation inhibite which resulted in the inhibition of NF-κB activation in RAW264.7 cells. In addition, BBK-L suppressed ERK1/2, JNK phosphorylation induced by LPS. BBK-L showed anti-inflammatory effect through blocking the generation of the inflammatory mediators such as NO, iNOS, COX-2, TNF-α, IL-1β, IL-6 via the inhibiting of NF-κB and MAPK signaling activation. These results suggests that BBK-L may have great potential for the development of anti-inflammatory drug to treat acute and chronic inflammatory disorders.