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Clin. transl. oncol. (Print) ; 20(12): 1548-1556, dic. 2018. tab, graf
Artigo em Inglês | IBECS | ID: ibc-173761

RESUMO

Purpose: Elevated markers of host inflammation, a hallmark of cancer, have been associated with worse outcomes in several solid tumors. Here, we explore the prognostic role of the derived neutrophil-to-lymphocyte ratio (dNLR), across different tumor subtypes, in patients with early breast cancer. Patients and methods: This was a retrospective analysis of 1246 patients with lymph node-positive, operable early breast cancer enrolled in the GEICAM/9906 trial, a multicenter randomized phase 3 study evaluating adjuvant chemotherapy. dNLR was calculated as the ratio of neutrophils and the difference between total leukocytes and neutrophils in peripheral blood before chemotherapy. Disease-free survival (DFS) and overall survival were explored using a Cox proportional hazard analysis. Results: The analysis comprised 1243 (99.8%) patients with dNLR data, with a median follow-up of 10 years. Data on intrinsic subtypes were available from 818 (66%) patients (luminal A 34%, luminal B 32%, HER2-enriched 21% and basal-like 9%). Median dNLR was 1.35 [interquartile range (IQR) 1.08-1.71]. In the whole population, dNLR was not prognostic after adjustment for clinico-pathological factors. However, dNLR ≥ 1.35 was independently associated with worse DFS in the hormone receptor-negative/HER2+ population (HR 2.86; p = 0.038) and in patients with one to three lymph node metastases (HR 1.32, p = 0.032). There was a non-significant association with worse DFS in non-luminal and in HER2-enriched tumors (HR 1.40, p = 0.085 and HR 1.53, p = 0.067). No significant interaction was observed between the treatment arm and dNLR. Conclusion: Elevated dNLR appears to be an adverse prognostic factor in hormone receptor-negative early breast cancer


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Assuntos
Humanos , Feminino , Neoplasias da Mama/patologia , Neutrófilos , Linfócitos , Inflamação/fisiopatologia , Metástase Linfática/patologia , Estudos Retrospectivos , Neoplasias da Mama/classificação , Prognóstico , Taxa de Sobrevida , Mediadores da Inflamação/análise , Fatores de Risco
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