Tumor Infiltrating Lymphocytes Affect the Outcome of Patients with Operable Triple-Negative Breast Cancer in Combination with Mutated Amino Acid Classes.

Autor: Vassiliki Kotoula, Sotiris Lakis, Ioannis S Vlachos, Eleni Giannoulatou, Flora Zagouri, Zoi Alexopoulou, Helen Gogas, Dimitrios Pectasides, Gerasimos Aravantinos, Ioannis Efstratiou, George Pentheroudakis, Kyriaki Papadopoulou, Kyriakos Chatzopoulos, Pavlos Papakostas, Maria Sotiropoulou, Irene Nicolaou, Evangelia Razis, Amanda Psyrri, Paris Kosmidis, Christos Papadimitriou, George Fountzilas
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: PLoS ONE, Vol 11, Iss 9, p e0163138 (2016)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0163138
Popis: Stromal tumor infiltrating lymphocytes (TILs) density is an outcome predictor in triple-negative breast cancer (TNBC). Herein we asked whether TILs are related to coding mutation load and to the chemical class of the resulting mutated amino acids, i.e., charged, polar, and hydrophobic mutations.We examined paraffin tumors from TNBC patients who had been treated with adjuvant chemotherapy mostly within clinical trials (training cohort, N = 133; validation, N = 190) for phenotype concordance; TILs density; mutation load and types.Concordance of TNBC phenotypes was 42.1% upon local / central, and 72% upon central / central pathology assessment. TILs were not associated with mutation load, type and class of mutated amino acids. Polar and charged mutation patterns differed between TP53 and PIK3CA (p50% TILs tumors (training p = 0.003; validation p = 0.015).TILs density is unrelated to mutation load in TNBC, which may be regarded as an unstable phenotype. If further validated, hydrophobic mutations along with TILs density may help identifying TNBC patients in higher risk for relapse.
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