From: DNA methylation signatures for breast cancer classification and prognosis
ER-positive | ER-low | ER-negative, PR-negative, HER2-negative | Normal breast-like |
---|---|---|---|
Luminal A | HER2-enriched | Claudin-low | High stromal content |
Luminal B | Â | Basal-like subtype | High lymphocyte infiltration |
 |  |  | True normal epithelial cell contamination |