Abstract
Purpose
Circulating tumor cell (CTC) count and the host inflammatory response are two independent predictors for patients with various malignant disease. Several inflammation-based indicators have been demonstrated to have prognostic value in many malignant solid tumors, including systemic immune-inflammation index (SII), neutrophil lymphocyte ratio (NLR), platelet lymphocyte ratio (PLR), and prognostic nutrition index (PNI). The aim of this study was to evaluate the predictive value of the inflammation-based indexes including SII, NLR PLR, and PNI for CTC detection of gastric cancer patients before surgery.
Methods
CTCs were measured using the isolation method by size of epithelial tumor cells and Wright staining for 60 patients with gastric cancer who underwent surgery. The indicators of SII, NLR, PLR, and PNI were calculated based on clinical laboratory testing.
Results
The detected CTC number was correlated with extension of tumor invasion (p = 0.037), lymph node metastasis (p < 0.001), and TNM stage (p < 0.001). The CTC detection ratio was significantly correlated with T stage (p = 0.041), lymph node metastasis (p = 0.001), nerve fiber invasion of tumor outside the lymph nodes (p = 0.017), and TNM stage (p < 0.001). Statistical analysis showed that SII (p < 0.001), NLR (p < 0.001), PLR (p < 0.001), and PNI (p < 0.001) were significantly associated with positive CTC count and CTC detection rate.
Conclusions
This study provides evidence that preoperative indicators consisting of SII, NLR, PLR, and PNI are robust predictors for CTC detection in gastric cancer patients undergoing tumor resection.
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The authors would like to thank Youzhiyou Biotechnology, Wuhan, China, for the technical support.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors.
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Zheng, L., Zou, K., Yang, C. et al. Inflammation-based indexes and clinicopathologic features are strong predictive values of preoperative circulating tumor cell detection in gastric cancer patients. Clin Transl Oncol 19, 1125–1132 (2017). https://doi.org/10.1007/s12094-017-1649-7
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DOI: https://doi.org/10.1007/s12094-017-1649-7