Analysis of BRAF and N-RAS mutations in metastatic melanoma tissues Journal Article


Authors: Gorden, A.; Osman, I.; Gai, W.; He, D.; Huang, W.; Davidson, A.; Houghton, A. N.; Busam, K.; Polsky, D.
Article Title: Analysis of BRAF and N-RAS mutations in metastatic melanoma tissues
Abstract: We examined mutations in BRAF exons 11 and 15 and N-RAS exons 2 and 3, in 77 metastatic melanoma cases and 11 melanoma cell lines. Significant differences in the mutation rates observed at different metastatic sites could not be detected. The most frequent mutation, the V599E amino acid substitution in BRAF exon 15, was observed in 31 of 77 (40%) tissues and 5 of 11 (45%) cell lines. Tandem base-pair substitutions encoding V599R and V599K amino acid changes were observed in two cases. Novel findings with respect to melanoma include a cell line possessing a 2 base-pair substitution in BRAF exon 11 and a case harboring mutations in both BRAF exon 11 and N-RAS exon 3. Our data show that BRAF mutation is common in melanoma metastases, regardless of their site, that mutations include both exons 11 and 15, and suggest that anti-RAS/RAF strategies may be effective in metastatic melanoma patients.
Keywords: controlled study; unclassified drug; gene mutation; human cell; exon; mutation; exons; raf protein; melanoma; metastasis; amino acid substitution; tumor cells, cultured; oncogene proteins; base pairing; genes, ras; b raf kinase; proto-oncogene proteins b-raf; oncogene n ras; humans; human; priority journal; article
Journal Title: Cancer Research
Volume: 63
Issue: 14
ISSN: 0008-5472
Publisher: American Association for Cancer Research  
Date Published: 2003-07-15
Start Page: 3955
End Page: 3957
Language: English
PUBMED: 12873990
PROVIDER: scopus
DOI/URL:
Notes: Export Date: 12 September 2014 -- Source: Scopus
Citation Impact
MSK Authors
  1. Klaus J Busam
    688 Busam
  2. Alan N Houghton
    364 Houghton