Psychological State, Immunotherapy Response, and Multi-Omics Signatures in TNBC

Inclusion Criteria： Participants must meet all of the following criteria: 1. Age ≥ 18 years; 2. Female patients; 3. Voluntarily agrees to participate in the study and signs the informed consent form, with good compliance and willingness to complete follow-up assessments; 4. Histologically confirmed invasive triple-negative breast cancer (TNBC), defined as ER \< 1%, PR \< 1%, and HER-2 0-1+ by IHC, or HER-2 2+ with negative FISH/CISH results (no gene amplification); 5. Planned to receive neoadjuvant immunotherapy-based treatment as part of routine clinical care. Exclusion Criteria Patients will be excluded if any of the following conditions apply: 1. Presence of distant metastasis; 2. History of other malignancies, except for adequately treated basal cell or squamous cell skin cancer, carcinoma in situ of the cervix, or cancers with no evidence of disease for ≥ 5 years; 3. Participation in another clinical trial and receipt of an investigational drug or treatment within 30 days before initiation of neoadjuvant therapy; 4. Known immunodeficiency or HIV infection; 5. Severe cardiac, pulmonary, hepatic, or renal dysfunction; 6. Uncontrolled infection or active systemic infection; 7. Pregnancy or breastfeeding; 8. Severe psychological or cognitive impairment that precludes completion of psychological assessments.