| BMI | Body mass index |
| WHO | World Health Organization |
| BC | Breast cancer |
| EBC | Early breast cancer |
| HR+ | Hormone receptor-positive |
| NCCN | National Comprehensive Cancer Network |
| MBC | Metastatic breast cancer |
| HER2− | Human epidermal growth factor receptor 2–negative |
| FISH | Fluorescence in situ hybridization |
| ISH | In situ hybridization |
| ORR | Objective response rate |
| CBR | Clinical benefit rate |
| CR | Complete response |
| PR | Partial response |
| SD | Stable disease |
| RECIST | Response Evaluation Criteria in Solid Tumors |
| CT | Computed tomography |
| HR | Hazard ratio |
| CI | Confidence interval |
| OR | Odds ratio |
| AI | Aromatase inhibitor |
| TME | Tumor microenvironment |
| PPAR-γ | Peroxisome proliferator-activated receptor γ |
| CAAs | Cancer-associated adipocytes |
| CAAT | Cancer-associated adipose tissue |
| IGFBP2 | Insulin-like growth factor binding protein 2 |
| VAT | Visceral adipose tissue |