Fig. 4
From: Comparative transcriptomics reveals similarities and differences between astrocytoma grades
Characteristic patterns of overexpression in signaling pathways distinguishing different astrocytoma grades. Number of overexpressed genes in each known cancer-relevant signaling pathway are shown for each type of astrocytoma (PA I, AS II, AS III, GBM IV). Significant enrichment of overexpressed genes in a pathway within a tumor type is highlighted by ’*’ (P<0.05) and ’**’ (P<0.01) (Fisher’s exact test)