Fig. 1

Differentially expressed genes in luminal A and basal-like breast cancer versus normal breast tissue. a Volcano plot of the differentially expressed genes identified by comparison of 255 luminal A breast cancer samples and 97 normal breast tissue samples. The 453 upregulated genes are shown in red (Up), and the 661 downregulated genes are shown in green (Down). b Volcano plot of the differentially expressed genes identified by comparison of 87 basal-like breast cancer samples and 97 normal breast tissue samples. The 435 upregulated genes are shown in red (Up), and the 607 downregulated genes are shown in green (Down). Genes that were not differentially expressed are shown in black (Equal)