| TNBC | Triple-negative breast cancer |
| MELK | Maternal embryonic leucine zipper kinase |
| BCSC | Breast cancer stem cell |
| OS | Overall survival |
| RFS | Recurrence-free survival |
| DMFS | Distant metastasis-free survival |
| KEGG | Kyoto Encyclopedia of Genes and Genomes |
| ORA | Overrepresentation Analysis |
| MFE | Mammosphere Formation Efficiency |
| OE | Overexpression |
| CAM | Chorioallantoic Membrane |