| BC | Breast cancer |
| HD | Healthy donors |
| NK cells | Natural killer cells |
| pCR | Pathological complete response |
| Non-pCR | No pathological complete response. |
| DNAM-1 | DNAX accessory molecule-1 |
| NKG2D | Natural killer group 2, member D |
| PD-1 | Programmed cell death protein 1 |
| TIGIT | T cell immunoreceptor with Ig and ITIM domains |
| IL-2 | Interleukin-2 |
| TNF-α | Tumor necrosis factor-alpha |
| IFN-γ | Interferon-gamma |
| IL-10 | Interleukin-10 |
| TME | Tumor microenvironment |
| PBMCs | Peripheral blood mononuclear cells |
| CXCR3 | C-X-C motif chemokine receptor 3 |
| BMI | Body mass index |