The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology (한방안이비인후피부과학회지)

The Society of Korean Medicine Ophthalmology, Otolaryngology & Dermatology (대한한방안이비인후피부과학회)
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Effects of Isatidis Radix and it's Active Component, Tryptanthrin on the Production of Inflammatory Mediators in Lipopolysaccharide-activated Raw264.7 Cells

LPS로 활성화된 Raw264.7 cell에서 판람근 및 Tryptanthrin의 염증매개물질억제효과

  • Park, Sook-Jahr (College of Oriental Medicine, Daegu Haany University) ;
  • Lee, Jong-Rok (College of Oriental Medicine, Daegu Haany University) ;
  • Jo, Mi-Jeong (College of Oriental Medicine, Daegu Haany University) ;
  • Park, Sang-Mi (College of Oriental Medicine, Daegu Haany University) ;
  • Buyn, Sung-Hui (College of Oriental Medicine, Daegu Haany University) ;
  • Cho, Il-Je (College of Oriental Medicine, Daegu Haany University) ;
  • Kim, Sang-Chan (College of Oriental Medicine, Daegu Haany University)
  • Received : 2011.03.08
  • Accepted : 2011.04.01
  • Published : 2011.04.25
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Abstract

Objectives : 판람근(板藍根)은 십자화과에 속하는 대청(大靑) 또는 숭남의 근(根)을 건조한 것이다. 본 연구는 판람근(板藍根)이 청열해독(淸熱解毒)함에 근거하여, LPS로 활성화된 Raw264.7 cell에서 판람근(板藍根)과 그 성분중의 하나인 tryptanthrin이 염증매개물질에 미치는 효과를 살펴보고자 하였다. Methods : 세포생존율은 MTT, nitric oxide (NO)는 Griess reagent를 사용하여 측정하였으며, 각 단백질의 발현량은 Western blot 방법을 사용하였으며, cytokine 및 cyclooxygenase-2 (COX-2)는 ELISA방법을 사용하여 측정하였다. Results : LPS는 NO 및 prostaglandin E2 (PGE2)를 유의하게 상승시켰으며, 판람근(板藍根)추출물 (IRE) 및 tryptanthrin 은 이들을 유의하게 억제하였다. 그러나 판람근(板藍根)의 또 다른 성분인 indigo는 유의한 결과를 나타내지 못하였다. IRE와 tryptanthrin은 inhibitory kappa B alpha의 인산화를 억제하여, nuclear factor-${\kappa}$B (NF-${\kappa}$B)의 핵으로의 전위(轉位)를 억제하여, iNOS 및 cytokine을 억제하였다. IRE와 tryptanthrin의 PGE2 억제는, COX-2의 발현억제에서가 아니라, COX-2의 활성을 억제함에서 기인하였다. Conclusion : 이러한 결과는 판람근(板藍根)이 NF-${\kappa}$B pathway를 경유하여 iNOS의 발현 및 COX-2의 활성을 억제함을 나타내며, 이러한 판람근(板藍根)의 항염증효능은 일부 tryptanthrin의 작용에서 기인함을 시사한다.

Keywords

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