동의생리병리학회지 (Journal of Physiology & Pathology in Korean Medicine)

  • 제27권1호
  • /
  • Pages.57-62
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  • 2013
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  • 1738-7698(pISSN)
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  • 2288-2529(eISSN)
대한동의생리학회·한의병리학회 ( The Physiological Society of Korean Medicine and The Society of Pathology in Korean Medicine)
권호 표지

화향수(化香樹) 수피(樹皮)의 메탄올 추출물이 신경세포에서 아밀로이드 전구단백질의 대사에 미치는 영향

Effects of MeOH Extract from Stem Bark of Plantocracy strobilacea on the Metabolism of Amyloid Precursor Protein in Neuroblastoma Cells

  • 투고 : 2013.01.04
  • 심사 : 2013.02.21
  • 발행 : 2013.02.25
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초록

Alzheimer's disease (AD), one of the most common forms of dementia, is characterized pathologically by the presence of intracellular neurofibrillary tangles and deposition of ${\beta}$-amyloid ($A{\beta}$) peptides of 40-42 residues, which are generated by processing of amyloid precursor protein (APP). $A{\beta}$ has been believed to be neurotoxic and now is also considered to have a role on the mechanism of memory dysfunction. Here, we show that MeOH extract from stem bark of Platycarya strobilacea Sieb. et. Zucc. (PSM) affects on the processing of APP from the APPswe over-expressing Neuro2a cell line. We found that PSM may regulate the processing of APP and increase the sAPP${\alpha}$. PSM does not change the protein level of presenilin and nicastrin, however, it reduces the protein expression level of BACE1. In addition, PSM reduces the secretion level of $A{\beta}42$ and $A{\beta}40$ from the cell line without toxicity. We suggest that Platycarya strobilacea may be useful as a herbal medicine to treat Alzheimer's disease.

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