…Monensin, salinomycin, and other antibiotics form chelates with metal ions and are called ionophore antibiotics. Antimycin and oligomycin, which inhibit cellular energy production, are not selective and therefore highly toxic, but are important biochemical reagents. On the other hand, most of the anticancer antibiotics used clinically act by binding to DNA and cutting it or inhibiting nucleic acid synthesis, but since they act not only on cancer cells but also on actively dividing normal cells, their selective toxicity against cancer is not very high and they have strong side effects such as hematopoietic disorders. … *Some of the terminology that mentions "antimycin" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…モネンシン,サリノマイシンなどは,金属イオンとキレートをつくり,イオノフォア抗生物質と呼ばれる。細胞のエネルギー産生を阻害するアンチマイシン,オリゴマイシンなどは,選択性がなく,したがって毒性も強いが,生化学的には重要な試薬となっている。一方,臨床的に用いられている制癌抗生物質のほとんどはDNAに結合してDNAを切断したり核酸合成を阻害することが作用機序であるが,これらは,癌細胞のみならず分裂の盛んな正常細胞にも作用するので,癌に対する選択毒性はあまり高いとはいえず,造血器障害などの副作用が強い。… ※「アンチマイシン」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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