| AE | Adverse event |
| AI | Aromatase inhibitor |
| AKT | Ak strain transforming |
| ALT | Alanine transaminase |
| AST | Aspartate aminotransferase |
| BC | Breast cancer |
| BP | Blueprint |
| BRCA | Breast cancer gene |
| CBR | Clinical benefit rate |
| CDK4/6i | Cyclin-dependent kinase 4/6 inhibitor |
| CPS | Combined positive score |
| CT | Chemotherapy |
| CTLA-4 | Cytotoxic T-lymphocyte-associated protein 4 |
| DCR | Disease control rate |
| ddAC | Dose-dense doxorubicin plus cyclophosphamide |
| DDR | DNA damage response |
| DOR | Duration of response |
| EBC | Early breast cancer |
| EC | Epirubicin plus cyclophosphamide |
| EFS | Event-free survival |
| ER | Estrogen receptor |
| ET | Endocrine therapy |
| FOXP3 | Forkhead box P3 |
| HDAC | Histone Deacetylase |
| HER2 | Human epidermal growth factor receptor 2 |
| ICI | Immune checkpoint inhibitor |
| IDFS | Invasive disease-free survival |
| ILD | Interstitial lung disease |
| KN-756 | KEYNOTE-756 |
| LAG3 | Lymphocyte activation gene 3 |
| LumB | Luminal B |
| MBC | Metastatic breast cancer |
| mDOR | Median duration of response |
| MHC | Major histocompatibility complex |
| mo | months |
| MP | Mammaprint |
| mPFS | Median progression free survival |
| mTNBC | Metastatic triple-negative breast cancer |
| mut/MB | Mutations per Megabase |
| NA | Not applicable |
| NACT | Neoadjuvant chemotherapy |
| NR | Not reported |
| ORR | Objective response rate |
| OS | Overall survival |
| PAM50 | Prediction analysis of microarray 50 |
| PARPi | Poly (ADP-ribose) polymerase inhibitor |
| pCR | Pathological complete response |
| PD-1 | Programmed cell death protein 1 |
| PD-L1 | Programmed cell death-ligand 1 |
| PR | Partial response |
| RCB | Residual cancer burden |
| RT | Radiation therapy |
| SBRT | Stereotactic body radiation therapy |
| SD | Stable disease |
| STING | Stimulator of interferon genes |
| TAM | Tumor-associated macrophages |
| TIL | Tumor-infiltrating lymphocytes |
| TMB | Tumor mutation burden |
| TME | Tumor microenvironment |
| TNBC | Triple-negative breast cancer |
| TRAE | Treatment-related adverse events |
| Treg | Regulatory T cells |