• 한국키틴키토산학회지
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• 제23권4호
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• pp.262-266
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• 2018

우리나라토종호두나무인가래나무(Juglans mandshurica Maxim.)의 수액의 유리당 함량은 약 3%로 다른 나무 수액에 비해 높게 나타났으며 미량 원소 중에는 Ca이 30 mg/kg의 농도로 포함되어 있는 것으로 확인되었다. 가래나무 수액 $200{\mu}g/ml$에서 elastase 저해 활성이 약 30% 정도를 보이고 있고 HaCaT 세포를 이용한 피부보습 효과에서는 자외선을 조사한 HaCaT세포의 aquaporin 3 유전자와 hyaluronan synthase 2 유전자 발현을 촉진시켜 hyaluronic acid의 생합성을 증가시킨 것으로 확인되었다. 본 연구를 통해 가래나무 수액의 피부 노화 방지 효능을 최초로 규명하였고 이는 가래나무 수액의 활용도를 높일 수 있는 가능성을 제시한 결과라 사료된다. 다만 물질 분석과 in-vivo 시험, 임상 연구 등 심도 있는 추가 연구가 필요할 것으로 판단된다.

• Biomolecules & Therapeutics
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• 제16권3호
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• pp.197-202
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• 2008

In our previous publication we compared the gene expression profiles on hepatotoxicants exposure to assess the comparability between in vivo and in vitro test systems. We investigated global gene expression from both mouse liver and mouse hepatic cell line treated with thioacetamide (TAA) and identified several common genes. In this study, we selected genes to validate them as potential biomarkers for hepatotoxicity on the relevance of in vitro and in vivo system. Three up-regulated, aquaporin 8 (Aqp8), glutathione peroxidase 1 (Gpx1), succinate-CoA ligase, GDP-forming, alpha subunit (Suclg1) and two down-regulated, DnaJ (Hsp40) homolog subfamily C member 5 (Dnajc5) and tumor protein D52 (Tpd52) genes were tested for their effects in vitro. For characterization of gene function, short interfering RNA (siRNA) for each gene was synthesized and transfected in mouse hepatic cell line, BNL CL.2. Cell viability, mRNA expression level and morphological alterations were investigated. We confirmed siRNA transfection against selected five genes induced down-regulation of respective mRNA expression. siRNA transfection in general decreased cell viability in different degrees and induced morphological changes such as membrane thickening and alterations of intracellular structures. This suggests that these genes could be associated with TAA-induced toxicity. Furthermore, these genes may be used in the investigation of hepatotoxicity for better understanding of its mechanism.