フグ毒研究の最近の進歩

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タイトル別名
  • Recent Advances in Tetrodotoxin Research
  • フグ ドク ケンキュウ ノ サイキン ノ シンポ

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抄録

One century has passed since fugu toxin was named tetrodotoxin (TTX) by Tahara. Chemical problems such as crystallization of tetrodotoxin and subsequent structure determination were solved by research groups headed by Tsuda, Hirata, Woodward, and Mosher. The International Symposium on the Chemistry of Natural Products in Kyoto (1964) was well known as symposium which the structure of TTX was internationally clarified. Since the first isolation of toxin from taricha torosa (imori) as natural source except for fugu fishes, distribution of toxin in nature has been widely investigated. And, it was proved that toxin is not produced by fugu fishes, but rather is formed by sea bacteria (30 sp.) such as Alteromonas sp, Vibrio sp, Shewanella. However, it seems to be difficult to explain the tetrodotoxin accumulation at high concentration in fugu by only toxin production by bacteria. TTX analogues were isolated from natural origins such as crabs, fish, annelids, and algae. Based on the structure of these toxin analogues, the biosynthesis of toxin and the structure-activity relationship (Na+ channel) were proposed by Yasumoto-Yamashita. The findings of wide distribution of toxin in nature may be attributed to development of highly sensitive detection method for toxin. The interesting proposal for the biosynthesis and the structure activity, and the detection method for toxin are outlined in this review.

収録刊行物

  • 薬学雑誌

    薬学雑誌 120 (10), 825-837, 2000

    公益社団法人 日本薬学会

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