Genetic alterations in mouse lung tumors: implications for cancer chemoprevention.

Abstract excerpt

Specific genetic alterations affecting known tumor suppressor genes and proto-oncogenes occur during mouse lung tumorigenesis. These include mutational activation of the K-ras gene, commonly seen at a frequency of about 80% in both spontaneously occurring and chemically induced adenomas and adenocarcinomas of the lung, suggesting that it is an early event that persists into malignancy. Allelic loss of the p16...

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