Water Extract of Flowers of Magnolia Denudata Inhibits LPS-induced Nitric Oxide and Pro-inflammatory Cytokines Production in Murine Peritoneal Macrophage by Inhibiting $NF-{\kappa}B$ Activation

LPS로 활성화된 복강 대식세포에서 신이 추출물의 염증성 사이토카인 및 NO 억제 효과

  • Kim, Do-Yun (Department of Herbology, College of Oriental Medicine, Wonkwang University) ;
  • Jeong, Won-Seok (Department of Herbology, College of Oriental Medicine, Wonkwang University) ;
  • Moon, Hyoung-Chul (Department of Clinical laboratory, Wonkwang University Gwangju Medical Center) ;
  • Park, Sung-Joo (Department of Herbology, College of Oriental Medicine, Wonkwang University)
  • 김도윤 (원광대학교 한의과대학 본초학교실) ;
  • 정원석 (원광대학교 한의과대학 본초학교실) ;
  • 문형철 (원광대학교 부속 광주한방병원 침구학교실) ;
  • 박성주 (원광대학교 한의과대학 본초학교실)
  • Published : 2007.08.25

Abstract

Flowers of Magnolia denudata has been reported to possess a variety of pharmacological activities. In this study, we investigated the anti-inflammatory effects and mechanism of the water extract of Flowers of Magnolia denudata(MD) in lipopolysacchride (LPS)-mediated inflammatory mediators in murine peritoneal macrophages. MD itself does not have any toxic effects in murine peritoneal macrophages. MD inhibits LPS-induced nitric oxide (NO), tumor necrosis factor $(TNF)-{\alpha}$, IL-6 and IL-12 production in murine peritoneal macrophages. Furthermore, we have found that MD inhibited LPS-induced $NF-{\kappa}B$ but not c-Jun N-terminal kinase (JNK), p38 and extracellular signal-ragulated kinase (ERK) activation. These results suggested that MD inhibit LPS-induced production of $TNF-{\alpha}$, IL-6 and IL-12 via suppression of the $NF-{\kappa}B$ activation.

Keywords

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