Abstract
Lymphocyte to monocyte ratio (LMR) has shown prognostic value in different types of cancer. This study assessed the prognostic performance of LMR in early-stage non-small cell lung cancer (NSCLC) patients and investigated the influence of LMR on the treatment response in patients receiving first-line platinum-based chemotherapy. Four hundred eighty-eight NSCLC patients and 500 healthy donors were enrolled in this study. The cutoff value for LMR was chosen by receiver operating characteristic curve analysis. The prognostic significance of markers was assessed by univariate and multivariate Cox regression models. The median overall survival was 43 months, and the median progression-free survival was 38 months. LMR was associated with disease status and the treatment response of first-line platinum-based chemotherapy. Multivariate analysis showed that LMR was an independent prognostic factor for both overall survival (hazard ratio = 1.53, 95 % confidence interval = 1.09–2.14, P = 0.015) and progression-free survival (hazard ratio = 1.20, 95 % confidence interval = 1.02–1.67, P = 0.028). Furthermore, integration of LMR into a prognostic model including TNM stage, tumor status, chemotherapy, and histological type generated a nomogram, which predicted accurately overall survival for NSCLC patients. Decreased LMR may be a potential biomarker of disease status, worse response to first-line platinum-based chemotherapy, and worse survival for NSCLC patients. A prospective study is warranted for further validation of our findings.
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Author contributions
Conceived and designed the experiments: JT and YJS
Performed the experiments: YJS, LXW, YQH, ZHL, QT, and XZF
Analyzed the data: YJS and LXW
Contributed reagents/materials/analysis tools: LXW and YQH
Wrote the manuscript: YJS and JT
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Song, YJ., Wang, LX., Hong, YQ. et al. Lymphocyte to monocyte ratio is associated with response to first-line platinum-based chemotherapy and prognosis of early-stage non-small cell lung cancer patients. Tumor Biol. 37, 5285–5293 (2016). https://doi.org/10.1007/s13277-015-4397-8
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DOI: https://doi.org/10.1007/s13277-015-4397-8