Evaluation of Carcinogenic/Co-carcinogenic Activity of Chikusaku-eki, a Bamboo Charcoal By-product Used as a Folk Remedy, in BALB/c3T3 Cells
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概要
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Chikusaku-eki is an acidic dark brown liquid obtained as a by-product from bamboo charcoal burners. The solution diluted with water is gaining widespread popularity in Japan as a folk medicine for skin diseases such as scabies, eczema, and atopic dermatitis. In this study, the carcinogenic and tumor-promoting potential of chikusaku-eki was determined using the BALB/c3T3 A31-1-1 cell transformation system. Carcinogenic activity was tested by treating A31-1-1 cells for 24 h with 0.06% solution, a dose resulting in 35% clonogenic cell survival. In both 2-O-tetradecanoylphorbol-13-acetate (TPA)-treated and non-treated groups, chikusaku-eki did not initiate carsinogenesis. Following initiation with 3-methylcholanthrene (3-MCA), A31-1-1 cells were chronically treated with a non-toxic concentration range of chikusaku-eki (≤0.01%), but chikusaku-eki did not act as a tumor promoter. Thus, chikusaku-eki was not carcinogenic/co-carcinogenic in the in vitro cell transformation assay examined in this study after being diluted more than 10^4-fold with water.
- 公益社団法人日本薬学会の論文
- 2002-08-01
著者
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Suto Shiho
Department Of Molecular Radiobiology Research Institute For Radiation Biology And Medicine Hiroshima
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Kimura Y
Department Of Molecular Radiobiology Research Institute For Radiation Biology And Medicine Hiroshima
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Kimura Yuki
Department Of Applied Physics University Of Miyazaki
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Tatsuka Masaaki
Department Of Molecular Radiobiology Research Institute For Radiation Biology And Medicine Hiroshima
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