Systematic name M2683
Brief description Genes down-regulated in head and neck tumor samples which clustered around known hypoxia genes.
Full description or abstract Affymetrix U133plus2 GeneChips were used to profile 59 head and neck squamous cell cancers. A hypoxia metagene was obtained by analysis of genes whose in vivo expression clustered with the expression of 10 well-known hypoxia-regulated genes (e.g., CA9, GLUT1, and VEGF). To minimize random aggregation, strongly correlated up-regulated genes appearing in >50% of clusters defined a signature comprising 99 genes, of which 27% were previously known to be hypoxia associated. The median RNA expression of the 99 genes in the signature was an independent prognostic factor for recurrence-free survival in a publicly available head and neck cancer data set, outdoing the original intrinsic classifier. In a published breast cancer series, the hypoxia signature was a significant prognostic factor for overall survival independent of clinicopathologic risk factors and a trained profile. The work highlights the validity and potential of using data from analysis of in vitro stress pathways for deriving a biological metagene/gene signature in vivo.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 17409455   Authors: Winter SC,Buffa FM,Silva P,Miller C,Valentine HR,Turley H,Shah KA,Cox GJ,Corbridge RJ,Homer JJ,Musgrove B,Slevin N,Sloan P,Price P,West CM,Harris AL
Exact source Table 3S
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Source species Homo sapiens
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