Article
A Specific Mutational Signature Associated with DNA 8-Oxoguanine Persistence in MUTYH-defective Colorectal Cancer.
EBioMedicine - 1 Jun 2017
Viel Alessandra, Bruselles Alessandro, Meccia Ettore, Fornasarig Mara, Quaia Michele, Canzonieri Vincenzo, Policicchio Eleonora, Urso Emanuele Damiano, Agostini Marco, Genuardi Maurizio, Lucci-Cordisco Emanuela, Venesio Tiziana, Martayan Aline, Diodoro Maria Grazia, Sanchez-Mete Lupe, Stigliano Vittoria, Mazzei Filomena, Grasso Francesca, Giuliani Alessandro, Baiocchi Marta, Maestro Roberta, Giannini Giuseppe, Tartaglia Marco, Alexandrov Ludmil B, Bignami Margherita
Abstract excerpt
8-Oxoguanine, a common mutagenic DNA lesion, generates G:C>T:A transversions via mispairing with adenine during DNA replication. When operating normally, the MUTYH DNA glycosylase prevents 8-oxoguanine-related mutagenesis by excising the incorporated adenine. Biallelic MUTYH mutations impair this enzymatic function and are associated with colorectal cancer (CRC) in MUTYH-Associated Polyposis (MAP) syndrome. Here,...
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