The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Production of Anti-dementia Acetylcholinesterase Inhibitor from Pleurotus ostreatus (Heuktari) and Inhibitory Effect on PC12 Neuron Apoptosis

흑타리버섯으로부터 항치매성 Acetylcholinesterase 저해물질의 생산 및 PC12 신경세포사 저해 효과

  • Han, Sang-Min (Department of Biomedicinal Science and Biotechnology, Paichai University) ;
  • Kim, Ji-Yoon (Department of Biomedicinal Science and Biotechnology, Paichai University) ;
  • Lee, Jong-Soo (Department of Biomedicinal Science and Biotechnology, Paichai University)
  • 한상민 (배재대학교 바이오.의생명공학과) ;
  • 김지윤 (배재대학교 바이오.의생명공학과) ;
  • 이종수 (배재대학교 바이오.의생명공학과)
  • Received : 2019.08.27
  • Accepted : 2019.10.07
  • Published : 2019.12.31
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Abstract

To develop a new antidementia acetycholinesterase (AChE) inhibitor from edible mushrooms, the inhibitory effects on AChE of water and ethanol extracts from various edible mushrooms were measured. Among the tested compounds, 70% ethanol extracts from Tremella fuciformis showed the highest AChE inhibitory activity, at 25.3% (IC50: 9.9 mg). Water extracts from the fruiting body of Pleurotus ostreatus (Heuktari) showed AChE inhibitory activity of 20.2% (IC50: 12.4 mg). However, the yield (40.8%) from Pleurotus ostreatus (Heuktari) was higher than that from Tremella fuciformis (5.0%). Therefore, we selected Pleurotus ostreatus (Heuktari) as the most promising candidate for a mushroom containing anti-dementia AChE inhibitors. The AChE inhibitor from Pleurotus ostreatus (Heuktari) was optimally extracted when its fruiting body was treated with water for 6 h at 30℃. The anti-dementia effects of the partially purified AChE inhibitor from Pleurotus ostreatus (Heuktari) were observed in PC12 nerve cells.

본 연구에서는 버섯으로부터 항치매성 건강소재를 개발하고자 주요 식용 및 약용 버섯들의 물과 에탄올 추출물들을 제조한 후 이들의 수율과 acetylcholinesterase 저해활성을 측정하여 우수 버섯을 선발하였다. 또한 선발된 우수버섯에 함유되어있는 항치매성 acetylcholinesterase 저해 물질의 추출 최적조건을 검토하였고, 이 저해물질을 부분정제한 후 PC12 신경세포사 저해 활성을 측정하여 항치매 효능을 검증하였다. 시료 버섯들의 물 추출물과 70% 에탄올 추출물을 각각 제조하여 이들의 acetylcholinesterase 저해 활성을 측정한 결과 물 추출물의 수율이 40%로 높고 acetylcholinesterase 저해 활성도 20.2% (IC50: 12.4 mg)로 우수한 흑타리버섯을 acetylcholinesterase 저해물질을 함유한 우수 버섯으로 최종 선발하였다. 흑타리버섯 자실체중의 항치매성 acetylcholinesterase 저해물질의 추출 최적 조건은 흑타리버섯 분말을 1:30으로 증류수에 현탁 시킨 후 30℃에서 6시간 추출하는 조건이었다. 흑타리버섯 자실체의 항치매성 acetylcholinesterase 저해물질을 한외여과와 gel 여과 등으로 부분정제한 후 신경세포 PC12의 세포치사 억제에 미치는 영향을 조사한 결과 부분정제 물질을 50 ㎍/mL 처리했을 때 세포치사율이 17.0%로 낮아져서 흑타리버섯 부분정제물이 치매 진행과정을 억제하거나 지연시키는 효과를 보이는 것으로 사료된다.

Keywords

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