| BC | Breast Cancer |
| ER | estrogen receptor |
| PR | progesterone receptor |
| GTEx | Genotype-Tissue Expression |
| HER2 | human epidermal growth factor receptor 2 |
| KCTD | potassium channel tetramerization domain |
| IHC | Immunohistochemistry |
| MFI | Mean Fluorescence Intensity |
| FCM | Flow CytoMetry |
| OS | Overall Survival |
| FFPE | Formalin-Fixed and Paraffin-Embedded |
| TNBC | Triple-negative breast cancer |
| TCGA | Cancer Genome Atlas |
| RTKs | Tyrosine Kinase Receptors |
| EGFR | Epidermal Growth Factor |
| IGF-1R | Insulin-like Growth Factor 1 |