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Ref Type Journal Article
PMID (15294323)
Authors Jarry A, Masson D, Cassagnau E, Parois S, Laboisse C, Denis MG
Title Real-time allele-specific amplification for sensitive detection of the BRAF mutation V600E.
Journal Vol Issue Date Pages Journal Short Title
Molecular and cellular probes 18 5 2004 Oct 349-52 Mol Cell Probes
URL
Abstract Text BRAF is a cytoplasmic serine/threonine kinase in the MAPK pathway that transduces signals from RAS family members to MEK1/2. Mutations in the BRAF gene have been described in the majority of cutaneous melanomas, papillary thyroid carcinoma and to a lesser extent in other cancers. The predominant mutation reported is a single transversion in exon 15 (T1799A). We designed a real-time allele-specific PCR to detect this mutation. This assay allowed us to detect this alteration in samples containing 2% of cells harboring this mutation, which is equivalent to 1% mutated DNA, assuming heterozygosity for the allele. Using this assay, we then tested 44 human primary colorectal tumors. We found the V600E mutation in four samples (9.1%). Analysis of DNA extracted from paraffin-embedded sections gave similar results, indicating that archived tissues can also be analyzed using this assay. The advantages of this method include: (1) rapidity; (2) sensitivity; (3) ease; (4) large throughput; (5) low cost and (6) the small quantities of DNA needed.

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