Expression of Clara Cell Secretory Protein in the Lungs of Rats Exposed to Crystalline Silica In Vivo
スポンサーリンク
概要
- 論文の詳細を見る
It has been theorized that Clara cell secretion protein (CCSP) plays a critical role in regulating the acute inflammatory response in the lung. We hypothesized that CCSP is also related to lung injury induced by occupational dust. The present study was conducted to investigate the time course of the expression of CCSP in lungs exposed to crystalline silica in vivo. Male Wistar rats were administered 1mg or 2mg of silica suspended in saline by a single intratracheal instillation and were sacrificed at 3d, 1wk, 1 month, 3 months and 6 months of recovery time. The expression of CCSP was observed by RT-PCR and western blot analysis. Exposure to 2mg of silica decreased in levels of CCSP mRNA at 3d, 1wk, 1 month and 6 months following intratracheal instillation. The protein level of CCSP in silica-exposed rats was decreased at 3d, 7d and 1 month after a single instillation of 2mg. The decreases in CCSP at the acute phase in this experiment suggest that CCSP may regulate the acute injury of the lung exposed to silica.
- 社団法人日本産業衛生学会の論文
- 2005-11-00
著者
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HIROHASHI Masami
Institute of Industrial and Ecological Sciences
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NAGATOMO Hiroko
Institute of Industrial and Ecological Sciences
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HIGASHI Toshiaki
Institute of Industrial and Ecological Sciences
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YAMATO Hiroshi
Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health
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OGAMI Akira
Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health
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HIROHASHI Masami
Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health
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MORIMOTO Yasuo
Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health
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TANAKA Isamu
Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health
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OBATA Yasuko
Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health
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OYABU Takako
Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health
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HIGASHI Toshiaki
Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health
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KURODA Kaori
Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health
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