Figure 8.

Heatmap of a cancer dataset [8] clustered using the normal gene signature. This signature identifies a distinct cluster of 38 estrogen receptor (ER)/progesterone receptor (PR) negative, HER2 negative samples corresponding to the basal breast cancer subtype [35]. Elevated expression of normal stroma-specific genes appears in a portion of the lumenal and HER2 positive tumors, although this expression does not correlate with the known molecular subtypes of breast cancer.

Finak et al. Breast Cancer Research 2006 8:R58   doi:10.1186/bcr1608
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