Abstract
Summary Therapy development for adult diffuse glioma is hindered by incomplete knowledge of somatic glioma driving alterations and suboptimal disease classification. We defined the complete set of genes associated with 1,122 diffuse grade II-III-IV gliomas from The Cancer Genome Atlas and used molecular profiles to improve disease classification, identify molecular correlations, and provide insights into the progression from low- to high-grade disease. Whole-genome sequencing data analysis determined that ATRX but not TERT promoter mutations are associated with increased telomere length. Recent advances in glioma classification based on IDH mutation and 1p/19q co-deletion status were recapitulated through analysis of DNA methylation profiles, which identified clinically relevant molecular subsets. A subtype of IDH mutant glioma was associated with DNA demethylation and poor outcome; a group of IDH-wild-type diffuse glioma showed molecular similarity to pilocytic astrocytoma and relatively favorable survival. Understanding of cohesive disease groups may aid improved clinical outcomes.
Original language | English (US) |
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Pages (from-to) | 550-563 |
Number of pages | 14 |
Journal | Cell |
Volume | 164 |
Issue number | 3 |
DOIs | |
State | Published - Jan 28 2016 |
Funding
This study was supported by NIH grants U24CA143883, U24CA143858, U24CA143840, U24CA143799, U24CA143835, U24CA143845, U24CA143882, U24CA143867, U24CA143866, U24CA143848, U24CA144025, U54HG003067, U54HG003079, U54HG003273, U24CA126543, U24CA126544, U24CA126546, U24CA126551, U24CA126554, U24CA126561, U24CA126563, U24CA143731, U24CA143843, P30CA016672, P50 CA127001, U54CA193313, R01CA179044, R01CA185486, R01 CA190121, and P01 CA085878; Cancer Prevention & Research Institute of Texas (CPRIT) R140606; and São Paulo Research Foundation (FAPESP) 2014/02245-3, 2015/07925-5, 2015/02844-7, and 2015/08321-3. D.J.W. is a consultant for Zymo Research Corporation. R.B. is a consultant for and received grant funding from Novartis. A.D.C. and M.M. received grant support from Bayer.
ASJC Scopus subject areas
- General Biochemistry, Genetics and Molecular Biology