E-GEOD-4271 - Transcription profiling of human high-grade astrocytomas reveals prognostic subgroups

Released on 2 October 2007, last updated on 27 March 2012
Homo sapiens
Samples (200)
Arrays (2)
Protocols (7)
Novel prognostic subclasses of high-grade astrocytoma are identified and discovered to resemble stages in neurogenesis. One tumor class displaying neuronal lineage markers shows longer survival, while two tumor classes enriched for neural stem cell markers display equally short survival. Poor prognosis subclasses exhibit either markers of proliferation or of angiogenesis and mesenchyme. Analysis of gene expression data is described in Phillips et al., Cancer Cell, 2006. Experiment Overall Design: 77 primary high-grade astrocytomas and 23 matched recurrences were profiled to identify changes in gene expression that relate to both survival and disease progression. Samples include WHO grade III and IV astrocytomas with a wide range of survival times.
Experiment types
transcription profiling by array, cell type comparison, co-expression, disease state, individual comparison
Molecular subclasses of high-grade glioma predict prognosis, delineate a pattern of disease progression, and resemble stages in neurogenesis. Heidi S Phillips, Samir Kharbanda, Ruihuan Chen, William F Forrest, Robert H Soriano, Thomas D Wu, Anjan Misra, Janice M Nigro, Howard Colman, Liliana Soroceanu, P Mickey Williams, Zora Modrusan, Burt G Feuerstein, Ken Aldape.