1. [TILGen study-immunological targets in patients with breast cancer : Influence of tumor-infiltrating lymphocytes]
- Author
-
R, Erber, A, Hartmann, M W, Beckmann, A, Mackensen, A, Kremer, H, Reimann, H, Hübner, A, Hein, M P, Lux, S, Jud, L, Häberle, P, Gaß, B, Volz, R, Schulz-Wendtland, M, Rübner, and P A, Fasching
- Subjects
Lymphocytes, Tumor-Infiltrating ,Receptors, Estrogen ,Receptor, ErbB-2 ,Biomarkers, Tumor ,Humans ,Breast Neoplasms ,Triple Negative Breast Neoplasms ,Lymphocytes ,Prognosis ,Neoadjuvant Therapy - Abstract
The interaction of our immune system with breast cancer (BC) cells prompted the investigation of tumor-infiltrating lymphocytes (TILs) and targeted, tumor antigen-specific immunotherapy.Correlation between TILs and pathological complete response (pCR) after neoadjuvant systemic therapy (NACT). Tumor-specific antigens (TSAs) in HER2+ and triple negative BC and establishment of TSA-specific therapies within the interdisciplinary TILGen study.Illustration of the TILGen study design. Assessment of TILs and correlation with pCR within this BC study.pCR was achieved in 38.4% (56/146) and associated with estrogen receptor/progesterone receptor negative (ER-/PR-) and HER2+ tumors. Lymphocytic predominant BC (LPBC) was found in 16.4% (24/146), particularly in ER-/PR- (ER-: 27.3% vs. ER+: 9.9%, PR-: 22.3% vs. PR+: 8.2%), large, and poorly differentiated BC. TILs were significantly correlated with pCR in multivariate analysis. In LPBC, pCR was achieved in 66.7%, whereas it was 32.8% in non-LPBC.First results confirm the influence of the human immune system on the response to NACT in HER2+ and triple negative BC. TSA-specific immunotherapy might improve the outcome in BC patients but there is an urgent need for comprehensive studies to further investigate this issue.
- Published
- 2018