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What is mitomycin?
Pronunciation: /mitomycin*/
mitomycin
Definition
A methylazirinopyrroloindoledione antineoplastic antibiotic isolated from the bacterium Streptomyces caespitosus and other Streptomyces bacterial species. Bioreduced mitomycin generates oxygen radicals, alkylates DNA, and produces interstrand DNA cross-links, thereby inhibiting DNA synthesis. Preferentially toxic to hypoxic cells, mitomycin also inhibits RNA and protein synthesis at high concentrations.