| CAFs | carcinoma-associated fibroblasts |
| EVs | extracellular vesicles |
| hUC | human umbilical cord |
| miR | micro RNA |
| MSC | mesenchymal stroma/stem-like cells |
| NTA | nanoparticle tracking analysis |
| TNBC | triple negative breast cancer |
| TRAIL | tumor necrosis factor-related apoptosis-inducing ligand |