Integrated genomic analysis identifies clinically relevant subtypes of glioblastoma characterized by abnormalities in PDGFRA, IDH1, EGFR, and NF1.

Cancer Cell
Authors
Keywords
Abstract

The Cancer Genome Atlas Network recently cataloged recurrent genomic abnormalities in glioblastoma multiforme (GBM). We describe a robust gene expression-based molecular classification of GBM into Proneural, Neural, Classical, and Mesenchymal subtypes and integrate multidimensional genomic data to establish patterns of somatic mutations and DNA copy number. Aberrations and gene expression of EGFR, NF1, and PDGFRA/IDH1 each define the Classical, Mesenchymal, and Proneural subtypes, respectively. Gene signatures of normal brain cell types show a strong relationship between subtypes and different neural lineages. Additionally, response to aggressive therapy differs by subtype, with the greatest benefit in the Classical subtype and no benefit in the Proneural subtype. We provide a framework that unifies transcriptomic and genomic dimensions for GBM molecular stratification with important implications for future studies.

Year of Publication
2010
Journal
Cancer Cell
Volume
17
Issue
1
Pages
98-110
Date Published
2010 Jan 19
ISSN
1878-3686
URL
DOI
10.1016/j.ccr.2009.12.020
PubMed ID
20129251
PubMed Central ID
PMC2818769
Links
Grant list
P50CA58223 / CA / NCI NIH HHS / United States
CA127716 / CA / NCI NIH HHS / United States
U24CA126561 / CA / NCI NIH HHS / United States
U54 HG003067 / HG / NHGRI NIH HHS / United States
P50 CA108961 / CA / NCI NIH HHS / United States
U54HG003273 / HG / NHGRI NIH HHS / United States
L30 CA104183-02 / CA / NCI NIH HHS / United States
U24CA126551 / CA / NCI NIH HHS / United States
U24CA126543 / CA / NCI NIH HHS / United States
U24CA126554 / CA / NCI NIH HHS / United States
U24CA126544 / CA / NCI NIH HHS / United States
U24 CA126551 / CA / NCI NIH HHS / United States
U54HG003067 / HG / NHGRI NIH HHS / United States
CA108961 / CA / NCI NIH HHS / United States
UL1 RR024992 / RR / NCRR NIH HHS / United States
U54 HG003273 / HG / NHGRI NIH HHS / United States
P50 CA058223 / CA / NCI NIH HHS / United States
L30 CA104183-01 / CA / NCI NIH HHS / United States
R01 NS049720 / NS / NINDS NIH HHS / United States
U54HG003079 / HG / NHGRI NIH HHS / United States
U24 CA126554 / CA / NCI NIH HHS / United States
P50 CA097257 / CA / NCI NIH HHS / United States
R01 CA127716 / CA / NCI NIH HHS / United States
U24 CA126561 / CA / NCI NIH HHS / United States
U24 CA143848 / CA / NCI NIH HHS / United States
RR023248 / RR / NCRR NIH HHS / United States
U24 CA126543 / CA / NCI NIH HHS / United States
U24CA126563 / CA / NCI NIH HHS / United States
U24CA126546 / CA / NCI NIH HHS / United States
U54 HG003079 / HG / NHGRI NIH HHS / United States
CA097257 / CA / NCI NIH HHS / United States
NS49720 / NS / NINDS NIH HHS / United States
K12 RR023248 / RR / NCRR NIH HHS / United States
L30 CA104183 / CA / NCI NIH HHS / United States
F30 ES019449 / ES / NIEHS NIH HHS / United States
U24 CA126546 / CA / NCI NIH HHS / United States
U24 CA126563 / CA / NCI NIH HHS / United States
U24 CA126544 / CA / NCI NIH HHS / United States