Fig. 1.
Gene expression-based subtypes in the MPA/DMBA-induced tumor cohort. Using the murine intrinsic gene list [11], hierarchical clustering of gene expression data revealed two distinct tumor clusters (p = 0.044, SigClust [22]), one containing claudin-low-like tumors and the other containing a transcriptomically heterogeneous set of tumors. Normal mouse mammary gland samples formed a separate cluster. Genes are ordered according to correlation to the claudin-lowEx centroid