Promoter hypermethylation of the O6-methylguanine-DNA methyltransferase gene: more common in lung adenocarcinomas from never-smokers than smokers and associated with tumor progression.


Adenocarcinoma (AC) is the most common type of lung cancer diagnosed in the United States, comprising up to 40% of tumors in smokers and 50-80% of tumors in never-smokers. Exposures to cigarette smoke, direct or second-hand, and radiation in the form of radon progeny are the major risk factors for lung AC in both smokers and never-smokers. The goal of the… (More)


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