The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Characterization of Anti-inflammation Effect of Aqueous Extracts from Phellinus baumii

바우미 상황버섯 추출물의 항염증 효과에 관한 연구

  • Kim, Hye-Min (Department of Life Science, University of Seoul) ;
  • Lee, Dong-Hee (Department of Life Science, University of Seoul)
  • Received : 2010.12.10
  • Accepted : 2010.12.23
  • Published : 2010.12.31
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Abstract

This study is to characterize the postulated anti-inflammatory effect of the hot water extracts from the Phellinus baumii. RAW264.7, macrophage cell line, was activated by lipopolysaccharide (LPS) and, further, treated with Phellinus baumii's aqueous extract. When the cultured macrophage cells were treated with LPS, they show typical signs of endoplasmic reticulum stress (ERS) and an increment in secretion of inflammatory cytokine compared to the non-treated control: The expression of glucose-regulated protein78 (Grp78), Grp94, and C/EBP homologous protein/GADD 153 (CHOP) increased along with augmented secretion of interlukin-6. Cellular nitric oxide content also significantly went up in comparison to the non-LPS treatment. When the LPS-treated RAW264.7 was treated with the aqueous Phellinus baumii extracts, however, the expression of ERS markers markedly reduced and the release of nitric oxide declined. Also, the expression of induced nitric oxide synthase (iNOS) notably diminished similarly as the NO content. In conclusion, this study strongly indicated that aqueous Phellinus baumii extract can be utilized directly as anti-inflammation agent and serves as a source of functional ingredient to lessen the inflammation.

본 연구에서는 바우미 상황버섯의 열수 추출물의 항염증 기능에 관한 연구를 수행하였다. 대식세포주인 RAW264.7을 lipopolyssacharide (LPS)로 활성화 시킨 후, 바우미 상황버섯에서 복수의 조건에서 추출한 추출물을 처리하여 면역 및 염증 발생 경로의 활성도를 측정하여 바우미 상황버섯의 면역증강기능 및 항염증기능을 검증하였다. RAW264.7을 LPS로 처리하였을 때 전형적인 소포체 스트레스를 수반한 염증 반응이 시현되었다. 전형적인 마커인 Grp78, Grp94 및 CHOP의 과발현을 시현하였고, 인터루킨 6 (IL-6)과 염증발현의 표시인자인 nitric oxide(NO) 발현을 증진한 것으로 나타났다. 위와 같이 처리된 세포에 바우미 상황버섯의 추출물을 처리하였을 때, 전반적으로 소포체 스트레스는 경감된 것으로 나타났으며, 특히 염증유발의 신호인자인 NO의 발생량과 이를 생성하는 효소인 iNOS의 발현량이 현격하게 감소한 것으로 나타났다. 이를 종합적으로 분석하면 바우미 상황버섯의 추출물은 유도된 소포체스트레스를 경감하는 효능을 보임과 동시에 항염증의 기능을 보이는 것으로 판단된다.

Keywords

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