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<p>In pancreatic ductal adenocarcinoma (PDAC), the tumor immune microenvironment (TIME) is central to prognosis and therapeutic response, yet predictive biomarkers are still lacking. Here, we used PDAC patients from TCGA, CPTAC, and multiple centers to investigate and validate the relationship between the prognosis and tumor-infiltrating neutrophil-to-T-cell ratio (NTR) in the TIME, including the correlation of NTR with chemotherapy response in PDAC. We developed seven artificial intelligence models to evaluate NTR in the TIME, then evaluated their performance. The multi-modal ROI-model, designated PORCELAIN (Pancreatic Cancer Tumor-Infiltrating Neutrophil-to-T-Cell Ratio Evaluation with Artificial Intelligence), achieved superior external validation performance, demonstrating significant stratification of overall survival and recurrence-free survival. The NTR in the TIME is a potential biomarker for PDAC prognosis and treatment stratification. Importantly, PORCELAIN provides a noninvasive approach to assess NTR in the TIME, offering potential value for clinical management. <b>Trial registration number:</b> NCT06760234.</p>

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Noninvasive evaluation and clinical value prediction of tumor-infiltrating neutrophil-to-T-cell ratio in pancreatic ductal adenocarcinoma

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月3日

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  • Yiqun Fan,
  • Bang Du,
  • Kaiyue Pu,
  • Yongji Sun,
  • Changming Lv,
  • Sien Hu,
  • Tianyu Song,
  • Ruijia Wu,
  • Ying Chen,
  • Jinlong Tang,
  • Yuanli Zhong,
  • Wangkun Bian,
  • Jian Wu,
  • Hui Zhang,
  • Yuan Ding,
  • Hongxia Xu,
  • Yulian Wu,
  • Xiawei Li

摘要

In pancreatic ductal adenocarcinoma (PDAC), the tumor immune microenvironment (TIME) is central to prognosis and therapeutic response, yet predictive biomarkers are still lacking. Here, we used PDAC patients from TCGA, CPTAC, and multiple centers to investigate and validate the relationship between the prognosis and tumor-infiltrating neutrophil-to-T-cell ratio (NTR) in the TIME, including the correlation of NTR with chemotherapy response in PDAC. We developed seven artificial intelligence models to evaluate NTR in the TIME, then evaluated their performance. The multi-modal ROI-model, designated PORCELAIN (Pancreatic Cancer Tumor-Infiltrating Neutrophil-to-T-Cell Ratio Evaluation with Artificial Intelligence), achieved superior external validation performance, demonstrating significant stratification of overall survival and recurrence-free survival. The NTR in the TIME is a potential biomarker for PDAC prognosis and treatment stratification. Importantly, PORCELAIN provides a noninvasive approach to assess NTR in the TIME, offering potential value for clinical management. Trial registration number: NCT06760234.