alexa Prophylaxis of oxidative DNA damage by formamidopyrimidine-DNA glycosylase.
Infectious Diseases

Infectious Diseases

Journal of Meningitis

Author(s): Frosina G

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Abstract Lying at the gas-exchange interface, lung epithelia may be at risk of oxidation-induced mutagenesis. Further, inflammation processes possibly consequent on smoking liberate reactive oxygen species that multiply the carcinogenic effects of tobacco. DNA repair mechanisms play a major role in counteracting the deleterious effects of oxidative DNA damage. Some studies find positive associations between lung cancer and variations in the human 8-oxoguanine DNA glycosylase (hOGG1) gene that encodes a major DNA glycosylase for oxidized lesions with sluggish kinetics properties. The bacterial homologue formamidopyrimidine-DNA glycosylase (FPG) is 80-fold faster than hOGG1 in repairing mutagenic oxidative lesions. Cell-culture studies have shown that FPG can be expressed in mammalian cells, where it accelerates DNA repair and abates mutagenicity of a wide range of DNA-damaging agents. Prophylaxis of oxidative DNA damage and mutation could be achieved in lung epithelia and other tissues of at-risk individuals by expression of the FPG protein. Currently available vehicles for this peculiar type of gene therapy are briefly surveyed. This article was published in Int J Cancer and referenced in Journal of Meningitis

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