Table 1 The classification of five molecular subtypes of breast cancer
Subtypes | ER | PR | HER 2 | Grade |
|---|---|---|---|---|
| Â | + | + | Â | Â |
Luminal A | + | − | − | 1, 2 |
|  | − | + |  |  |
|  | + | + | − | 3 |
Luminal B/HER2 negative | + | − |  |  |
|  | − | + |  |  |
| Â | + | + | + | All |
Luminal B/HER2 positive | + | − |  |  |
|  | − | + |  |  |
Basal-like | − | − | − | All |
HER2-enriched | − | − | + | All |