Screening of N-ras codon 61 mutations in paired primary and metastatic cutaneous melanomas: mutations occur early and persist throughout tumor progression.

Abstract excerpt

PURPOSE: Mutations in the ras genes often occur during tumorigenesis. In malignant melanoma, the most common ras alterations are N-ras codon 61 mutations. This study was aimed to measure the frequency of such mutations in a large series of paired primary and metastatic melanomas to determine their role in melanoma initiation and progression. EXPERIMENTAL DESIGN: Seventy-four primary melanomas and 88 metastases...

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