Mechanism of action of a new macromolecular antitumor antibiotic, C-1027

Yoshikazu Sugimoto, Toshio Otani, Shinji Ole, Konstanty Wierzba, Yuji Yamada

研究成果: Article査読

89 被引用数 (Scopus)

抄録

C-1027 is a new antitumor protein antibiotic containing a non-protein chromophore. The active moiety and the mechanism of action of this antibiotic were studied. C-1027 and its chromophore inhibited the growth of KB carcinoma and LI 210 leukemia cells, even at extremely low concentrations. C-1027 inhibited DNA synthesis of L1210 cells and cleaved cellular DNA in a drug concentrationdependent manner. C-1027 and chromophore caused directly DNA single strand breaks in the purified DNA without any supplement of reducing agents. These results suggest that C-1027 chromophore may inhibit cell growth by causing DNA breakage with subsequent inhibition of DNA synthesis.

本文言語English
ページ(範囲)417-421
ページ数5
ジャーナルThe Journal of Antibiotics
43
4
DOI
出版ステータスPublished - 1990
外部発表はい

ASJC Scopus subject areas

  • 薬理学
  • 創薬

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