ArticleClinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico2025
Prognostic and recurrence risk predictive values of tumor infiltrating lymphocytes in HER2-low breast cancer.
Article in Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Multidimensional MRI radiomics-based model predicts recurrence risk in triple-negative breast cancer.NPJ precision oncology · 2026Article
- Comparison of Stromal Tumor-Infiltrating Lymphocyte (sTIL) Levels and Clinicopathological Features in Neoadjuvant-Naive HER2-Low and HER2-Negative Primary Breast Cancers.Medicina (Kaunas, Lithuania) · 2026Article
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5 authors.
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Abstract
backgroundWith the emergence of novel anti-HER2 antibody drug conjugates, patients with HER2-low breast cancer have received increased attention. Tumor-infiltrating lymphocytes (TILs) are significantly associated with survival benefits in cancers. However, their prognostic value in patients with low her2 breast cancer is unknown. Therefore, we aimed to determine the relationship between TILs and recurrence in patients with HER2-low breast cancer.
methodsClinicopathological data were retrospectively collected from patients with human epidermal growth factor receptor 2 (HER2) low-expression breast cancer who underwent consultations at Qingdao University Affiliated Hospital. We determined the correlation between TILs and disease-free survival (DFS) followed by the threshold value of TILs using X-tile software. Survival was assessed using Kaplan-Meier analysis, and cox regression analysis was performed for recurrence risk modeling.
resultsOur study showed a 15% TIL level was the optimal cutoff for DFS. The low and high TILs survival curves showed significant differences in the log-rank test (p = 0.009). Cox regression analyses found that lymph node stage, histologic grading, TILs, and Ki-67 were independent variables influencing the prognosis (p < 0.05). On this basis, we developed a risk prediction model to accurately predict the 3- and 5-year disease-free survival rates of patients with HER2-low breast cancer, the model demonstrated good overall performance.
conclusionTILs are associated with recurrence in patients with breast cancer and low HER2 levels. TILs > 0.15 is a reliable indicator of DFS. For patients with low TILs (≤ 0.15), extensive follow-up is required. These findings provide a basis for targeted, individualized treatment.
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