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Anti-inflammatory effect of ethanol extract from Ecklomia cava on gram-positive bacteria(Peptidoglycan)-induced macrophages

그람-양성균(Peptidoglycan)으로 유도한 대식세포에서 감태 에탄올 추출물의 항염증 효과

  • Kang, Ok-Hwa (College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Won-Kwang University) ;
  • Kim, Sung-Bae (College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Won-Kwang University) ;
  • Keum, Joon-Ho (College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Won-Kwang University) ;
  • Mun, Su-Hyun (College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Won-Kwang University) ;
  • Kim, Yong-Sik (College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Won-Kwang University) ;
  • An, Byung-Kwan (College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Won-Kwang University) ;
  • An, Hyeon-Jin (College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Won-Kwang University) ;
  • Kwon, Dong-Yeul (College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Won-Kwang University)
  • 강옥화 (원광대학교 한약학과 원광한약연구소) ;
  • 김성배 (원광대학교 한약학과 원광한약연구소) ;
  • 금준호 (원광대학교 한약학과 원광한약연구소) ;
  • 문수현 (원광대학교 한약학과 원광한약연구소) ;
  • 김용식 (원광대학교 한약학과 원광한약연구소) ;
  • 안병관 (원광대학교 한약학과 원광한약연구소) ;
  • 안현진 (원광대학교 한약학과 원광한약연구소) ;
  • 권동렬 (원광대학교 한약학과 원광한약연구소)
  • Received : 2011.05.20
  • Accepted : 2011.06.13
  • Published : 2011.06.30

Abstract

Objectives : Ecklonia cava is brown alga(Laminariaceae) which grows is sea, it has antioxidant, diarrhea and anticoagulant effect. In this study, the effect of ethanol extract of Ecklonia cava (EC) on peptidoglycan(PGN) -induced NO production in RAW 264.7 cells was investigated. Methods : In the present study, IL-6 production was measured using the enzyme-linked immunosorbent assay(ELISA), prostaglandin $\E_2$($\PGE_2$) production was measured using the EIA kit, and inducible NO synthase(iNOS), cyclooxygenase-2(COX-2), and mitogen-activated protein kinase(MAPK) activation, as determined by western blot analysis and reverse transcription -polymerase chain reaction(RT-PCR). Results : EC inhibited PGN-induced NO and IL-6 production. Consistent with these observations, the protein expression of iNOS and COX-2 were inhibited by EC. Moreover, EC suppressed the phosphorylation of extracellular signal-regulated kinase(ERK) 1/2 in PGN-induced RAW 264.7. Conclusions : These results suggest that EC has inhibitory effects on PGN-induced $\PGE_2$, NO, and IL-6 production, as well as the expressions of iNOS and COX-2 in the murine macrophage. These inhibitory effects occur through blockades on the MAPKs phosphorylation.

Keywords

References

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