Researchers at Memorial Sloan-Kettering Cancer Center (MSKCC) in New York have found a rare mutation in some GIST tumors. In a series of 61 patients with wild-type GIST, they found that three of them (5%) had mutations in a gene called BRAF. This same mutation, a “V600E” mutation in exon 15 of the BRAF gene, occurs frequently in melanoma. They also found the same mutation in one of 28 GIST patients that were resistant to Gleevec.
This is part one of a two-part series on “KIT and PDGFRA kinase mutations in GIST: from A to Z”. In this newsletter, Dr. Heinrich will provide a background on the role of kinase mutations in GIST, focusing largely on the biological and clinical implications of these mutations. In part two (which will be featured in the July 2007 edition of the newsletter, following the special “Five-year anniversary” edition),