CpG island promoter hypermethylation of the Ras-effector gene NORE1A occurs in the context of a wild-type K-ras in lung cancer.

Abstract excerpt

Imbalance of the Ras signaling pathway is a major hallmark of human cancer. In this context, activating point mutations of the K-ras oncogene are a common feature of many tumor types. The discovery of methylation-mediated silencing of the Ras-effector homologue RASSF1A has revealed another way by which this cellular pathway may be altered. Inactivation by hypermethylation of a RASSF1A homologue, NORE1A, has...

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