ArticleGastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association2026
Multicenter research: tumor microenvironment features combined with tumor cell characteristics predict lymph node metastasis in early gastric cancer.
Article in Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Abstract
objectiveTo develop and validate a nomogram for predicting lymph node metastasis in early gastric cancer according to the characteristics of the tumor microenvironment to optimize treatment strategies.
methodsClinicopathological data of 882 early gastric cancer patients from three medical centers were retrospectively collected. Among them, 744 cases from Center 1 were assigned to the training set, and 138 cases from Centers 2 and 3 were the validation set. Tumor-infiltrating lymphocytes (TILs) and tumor-stroma ratio (TSR) were quantified in hematoxylin-eosin stained sections using QuPath software. The number and maturity of tertiary lymphoid structures (TLS) were evaluated through multiplex immunofluorescence. Nomogram prediction models were constructed using independent risk factors identified by univariate and multivariate logistic regression analyses. The performance of the model was evaluated by receiver operating characteristics (ROC) curve, calibration curve, and clinical decision curve analyses.
resultsLymph node metastasis rates were 19.2% in the training set and 23.9% in the validation set; sex, lymphovascular invasion, TSR, and TLS were identified as independent risk factors. The model achieved an area under the ROC curve of 0.807 [95% confidence interval (CI) 0.766-0.843] in the training set and 0.822 (95% CI 0.721-0.907) in the validation set. The calibration curves indicated good agreement between predicted probabilities and actual incidence rates, and the clinical decision curve analysis revealed a positive clinical net benefit over a broad range of thresholds.
conclusionThe nomogram developed in this study showed high accuracy, stability, and clinical utility, suggesting its value for guiding treatment decision-making in early gastric cancer.
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