An integrated genomic analysis of human glioblastoma multiforme

DW Parsons, S Jones, X Zhang, JCH Lin, RJ Leary… - science, 2008 - science.org
DW Parsons, S Jones, X Zhang, JCH Lin, RJ Leary, P Angenendt, P Mankoo, H Carter
science, 2008science.org
Glioblastoma multiforme (GBM) is the most common and lethal type of brain cancer. To
identify the genetic alterations in GBMs, we sequenced 20,661 protein coding genes,
determined the presence of amplifications and deletions using high-density oligonucleotide
arrays, and performed gene expression analyses using next-generation sequencing
technologies in 22 human tumor samples. This comprehensive analysis led to the discovery
of a variety of genes that were not known to be altered in GBMs. Most notably, we found …
Glioblastoma multiforme (GBM) is the most common and lethal type of brain cancer. To identify the genetic alterations in GBMs, we sequenced 20,661 protein coding genes, determined the presence of amplifications and deletions using high-density oligonucleotide arrays, and performed gene expression analyses using next-generation sequencing technologies in 22 human tumor samples. This comprehensive analysis led to the discovery of a variety of genes that were not known to be altered in GBMs. Most notably, we found recurrent mutations in the active site of isocitrate dehydrogenase 1 (IDH1) in 12% of GBM patients. Mutations in IDH1 occurred in a large fraction of young patients and in most patients with secondary GBMs and were associated with an increase in overall survival. These studies demonstrate the value of unbiased genomic analyses in the characterization of human brain cancer and identify a potentially useful genetic alteration for the classification and targeted therapy of GBMs.
AAAS