| Literature DB >> 16045337 |
In Seok Hong1, Marc M Greenberg.
Abstract
DNA is the target of many anti-cancer therapies. These agents damage the biopolymer by oxidation or by alkylation. Interstrand DNA cross-links are believed to be the source of cytotoxicity of anti-tumor agents, such as mitomycin C, which alkylate the biopolymer. In contrast, deoxyguanosine oxidation is the result of reaction between DNA and singlet oxygen, which is the damaging species produced in photodynamic therapy. We have shown that, upon oxidation by singlet oxygen, an analogue of thymidine (2) rearranges to a methide, which forms DNA-DNA interstrand cross-links. This novel process suggests that 2 may be a useful adjuvant in photodynamic therapy.Entities:
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Year: 2005 PMID： 16045337 PMCID： PMC1352307 DOI： 10.1021/ja053493m
Source DB: PubMed Journal: J Am Chem Soc ISSN： 0002-7863 Impact factor: 15.419