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Shirasawa, Masayuki; Yoshida, Tatsuya; Horinouchi, Hidehito; Kitano, Shigehisa; Arakawa, Sayaka; Matsumoto, Yuji; Shinno, Yuki; Okuma, Yusuke; Goto, Yasushi; Kanda, Shintaro; Watanabe, Reiko; Yamamoto, Noboru; Watanabe, Shun-Ichi; Ohe, Yuichiro; Motoi, Noriko
British journal of cancer, 03/2021, Volume: 124, Issue: 5Journal Article
The prognostic value of the neutrophil-to-lymphocyte ratio (NLR) with large cell neuroendocrine carcinoma (LCNEC) patients remains unclear. Thus, we performed a retrospective study to examine the relationship between the pretreatment NLR and clinical outcome in advanced LCNEC patients and the impact of the immune-related tumour microenvironment (TME). This retrospective study included 63 advanced LCNEC patients who had received chemotherapy. We collected clinical data and investigated the TME status (CD4, CD8, CD20 and FOXP3). The overall survival of the patients with a low NLR (<5) was significantly longer than those with a high NLR (≥5) (14.9 vs. 5.2 months; p < 0.001). A multivariate analysis identified a high NLR as a predictor of a poor prognosis (HR, 3.43; 95% CI, 1.73-6.79; p < 0.001). The NLR was inversely correlated with tumoural and stromal CD8-positive tumour-infiltrating lymphocytes (tumoural: r = -0.648, p = 0.005, stromal: r = -0.490, p = 0.046). A high NLR was associated with a poor prognosis in advanced LCNEC patients. Our study revealed that the NLR can reflect the TME, at least in part, suggesting that the NLR plays an important role not only as a clinical outcome predictor but also as a tumour immune status indicator.
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