Mitomycin C

Mitomycin C (MMC) is an antitumor antibiotic that was discovered as a fermentation product of S. caespitosus.{20830} As an alkylating agent, its activity depends on reductive activation either through low pH or DT-diaphorase or NADH cytochrome c reductase.{20829} Activated MMC crosslinks double stranded DNA and is widely used as a tool to selectively inhibit DNA synthesis and mutagenensis, to stimulate genetic recombination, chromosome breakage and sister chromatid exchange, and to induce DNA repair.{20826,20827} MMC has clinical significance in combination cancer chemotherapy of solid tumors as well as for modulating wound healing after ophthalmological surgeries and in the management of various corneal disorders.{20828,20831}