Maitotoxin Induces Acrosome Reaction and Histone Degradation of Starfish Asterina pectinifera Sperm
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概要
- 論文の詳細を見る
Maitotoxin (MTX) is a marine toxin which presumably activates Ca^<2+>-channels and stimulates phosphoinositide breakdown in various mammalian cells. We report here that MTX induces the acrosome reaction of starfish spermatozoa by a cooperative action with a diffusible fraction of the egg jelly. MTX alone does induce the degradation of sperm histones. Both reactions induced by MTX depend on extracellular Ca^<2+>. Verapamil, a Ca^<2+> -channel antagonist, inhibits MTX-induced acrosome reaction but not affects MTX-induced histone degradation. MTX bypasses the blockage by ARIS of the jelly-induced acrosome reaction and histone degradation.
- 社団法人日本動物学会の論文
- 1993-04-15
著者
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HOSHI Motonori
Department of Biological Sciences and Informatics, Keio University
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Hoshi M
Department Of Life Science Faculty Of Bioscience And Biotechnology Tokyo Institute Of Technology
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Amano Tosikazu
Department of Life Science, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology
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Okita Yishihito
Suntory Pharmatech Center
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Yasumoto Takeshi
Department of Biological Chemistry, Faculty of Agriculture, Tohoku University
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Amano Tosikazu
Department Of Life Science Faculty Of Bioscience And Biotechnology Tokyo Institute Of Technology
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Yasumoto Takeshi
Department Of Biological Chemistry Faculty Of Agriculture Tohoku University
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