Fig. 6
From: Comparative transcriptomics reveals similarities and differences between astrocytoma grades
Molecular signature distinguishing PA I from AS II, AS III and GBM IV. The heatmap shows the expression levels of 1,089 genes (rows) with strong expression differences between PA I and AS II, AS III and GBM IV for individual tumor patients (columns). Expression levels are displayed as log-ratios comparing gene expression levels in tumor to normal brain. Underexpressed genes are displayed in blue, unchanged expressed genes in grey, and overexpressed genes are displayed in red. Genes were clustered according to their similarity of expression levels across all tumor samples. The color code at the left side highlights genes that are TFs (purple), signaling pathway genes (green), or both (brown)