Publication: Deconstructing neutrophil to lymphocyte ratio (NLR) in early breast cancer: lack of prognostic utility and biological correlates across tumor subtypes
Authors
García-Torralba, Esmeralda ; Pérez Ramos, Miguel ; Ivars Rubio, Alejandra ; Navarro Manzano, Esther ; Blaya Boluda, Noel ; Lloret Gil, Miguel ; Aller, Alberto ; Morena Barrio, Pilar de la ; García Garre, Elisa ; Martínez Díaz, Francisco ; García Molina, Francisco ; Chaves Benito, Asunción ; García-Martínez, Elena ; Ayala de la Peña, Francisco
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Publisher
Springer
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DOI
https://doi.org/10.1007/s10549-024-07286-x
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info:eu-repo/semantics/article
Description
© The Author(s) 2024. This document is the Published version of a Published Work that appeared in final form in Breast Cancer Research and Treatment. To access the final edited and published work see https://doi.org/10.1007/s10549-024-07286-x
Abstract
Purpose The prognostic utility and biological correlates of neutrophil to lymphocyte ratio (NLR), a potential biomarker of the balance between immune response and the inflammatory status, are still uncertain in breast cancer (BC). Methods We analysed a cohort of 959 women with early breast cancer, mostly treated with neoadjuvant or adjuvant chemo
therapy. Clinical and pathological data, survival, NLR (continuous and categorical) and stromal tumor infiltrating lympho cytes (sTIL) were evaluated. Results NLR was only weakly associated with Ki67, while no association was found for grade, histology, immunohisto chemical subtype or stage. Lymphocyte infiltration of the tumor did not correlate with NLR (Rho: 0.05, p = 0.30). These results were similar in the whole group and across the different BC subtypes, with no differences in triple negative BC.
Relapse free interval (RFI), breast cancer specific survival (BCSS) and overall survival (OS) changed according to pretreatment NLR neither in the univariate nor in the multivariate Cox models (RFI: HR 0.948, p = 0.61; BCSS: HR 0.920, p = 0.57; OS: HR 0.96, p = 0.59). Conclusion These results question the utility of NLR as a prognostic biomarker in early breast cancer and suggest the lack of correlation of NLR with tumor microenvironment immune response.
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Citation
Breast Cancer Research and Treatment (2024) 205:475–485
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