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胰腺癌的空间形态与治疗意图全新辅助疗法后的疾病复发有关
bioRxiv : the preprint server for biology
|November 24, 2025
概括
治疗后剩余的胰腺癌的空间布局,而不仅仅是瘤大小,预测复发. 分析癌症-肌瘤模式为胰腺管腺癌 (PDAC) 患者提供了新的预后见解.
科学领域:
- 在瘤学瘤学.
- 计算病理学计算病理学
- 癌症研究 癌症研究
背景情况:
- 胰腺管道腺癌 (PDAC) 在新辅助疗法和手术后经常复发.
- 目前对PDAC治疗反应的基因病理学评估是有限的,特别是在轻微的反应病例中.
- 了解残留瘤生物学对于改善患者的治疗结果至关重要.
研究的目的:
- 调查在全新辅助疗法 (TNT) 后残留PDAC的空间组织是否提供预后信息.
- 开发空间风险模型来预测轻微病理反应的PDAC患者的无病生存期 (DFS).
主要方法:
- 对203名切除PDAC患者的回顾性分析,这些患者有轻微的病理反应.
- 全幻灯片的H&E图像被细分为癌症和筋膜.
- 空间组成的量化和残留瘤结构的配置.
主要成果:
- 治疗耐药性与碎片化,丰富接口的瘤生态有关,具有更高的边缘密度和减少聚合.
- 基于癌症/肌瘤形状和边缘密度的两个多变量空间风险模型,独立预测了DFS.
- 空间模型在预测结果方面表现优于传统的治疗反应评估.
结论:
- 剩余癌症-肌瘤拓在TNT后的PDAC中提供了独立的预后信号.
- 量化空间架构可以识别患有复发风险较高的患者.
- 这些发现支持开发基于空间的辅助策略和机制研究.
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