The Journal of Internal Korean Medicine (대한한방내과학회지)

The Society of Internal Korean Medicine (대한한방내과학회)
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Effect of Baegieum(BGU) on Oxidant induced cell death in human intestinal epithelial cells

배기음(排氣飮)이 인간(人間)의 장관(腸管) 상피세포(上皮細胞)에서 Oxidant에 의해 유발(誘發)된 세포사망(細胞死亡)과 DNA 손상(損傷)에 미치는 영향

  • Kim, Woo-Hwan (Dept. of Internal Medicine, College of Oriental Medicine Dongeui University) ;
  • Kim, Won-Ill (Dept. of Internal Medicine, College of Oriental Medicine Dongeui University)
  • 김우환 (동의대학교 한의과대학 비계내과학교실) ;
  • 김원일 (동의대학교 한의과대학 비계내과학교실)
  • Published : 2000.08.30
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Abstract

목적 : 본(本) 연구(硏究)는 배기음(排氣飮)이 인간(人間)의 장관내(腸管內)에서 산화물(酸化物)에 의해 유발(誘發)된 세포(細胞)의 사망(死亡) 및 DNA의 손상(損傷)을 방지할수 있는지를 검증(檢證)하기 위한 실험(實驗)이다. 방법 : 배양(培養)된 인체장관(人體腸管) 세포계열(細胞系列)인 Caco-2 세포(細胞)에서 세포(細胞)의 사망(死亡)은 trypan bile의 소실정도에 의해서 평가했으며, DNA의 손상(損傷)은 double stranded DNA의 파괴정도를 측정하여 평가하였다. $H_2O_2$는 표본(標本) 산화제(酸化劑)로 사용되었다. 결과 : $H_2O_2$에 노출된 세포들의 세포사망(細胞死亡) 정도는 노출시간과 용량에 비례하여 증가하는 양상을 보였다. 배기음(排氣飮)은 $H_2O_2$에 의해 유발(誘發)되는 세포방지를 방지하였고, 0.05-1%의 농도범위에 걸쳐서는 그 효과가 용량에 비례하여 증가하는 양상을 보였다. $H_2O_2$에 의해 유발(誘發)된 세포손상(細胞損傷)은 catalase(hydrogen peroxide scavenger enzyme)와 deferoxamine(iron chelator)에 의해 억제되었다. 그러나 강력한 항산화제(抗酸化劑)인 DPPD는 $H_2O_2$에 의해 유발(誘發)되는 세포손상(細胞損傷)에는 영향을 주지 못했다. $H_2O_2$에 의해 유발(誘發)된 지질(脂質)의 과산화(過酸化)는 배기음(排氣飮)과 DPPD에 의해 억제되었다. $H_2O_2$에 의해 유발(誘發)된 DNA의 손상(損傷)은 배기음(排氣飮)에 의해 방지되었으며 용량에 의존하는 양상을 보였다. $H_2O_2$에 의해 유발(誘發)된 DNA의 손상은 catalase와 deferoxamine에 의해 억제되었지만 DPPD는 억제시키지 못했다. 배기음(排氣飮)은 $H_2O_2$에 의해 유발(誘發)된 ATP의 소실을 회복시켰다. 이러한 실험결과 $H_2O_2$에 의해 유발(誘發)된 세포(細胞)의 손상(損傷)은 지질(脂質)의 과산화(過酸化)와는 다른 독립적인 기전에 의해 일어남을 나타낸다. 결론 : 이러한 결과들로 볼 때 Caco-2 세포(細胞)에서 배기음(排氣飮)이 항산화작용(亢酸化作用)보다는 다른 기전을 통하여 Caco-2 세포안에서 산화제(酸化劑)에 의해 유발(誘發)된 세포(細胞)의 사망(死亡)와 DNA의 손상(損傷)을 방지할 수 있다는 것을 가리킨다. 따라서 본 연구(硏究)는 배기음(排氣飮)이 반응성산소기(反應性酸素基)에 의해 매개된 인체(人體) 위장관질환(胃腸管疾患)의 치료(治療)에 사용할 수 있을 가능성(可能性)이 있음을 제시하고 있다.

Keywords

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