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途径突变累积扰乱评分:在晚期胃癌中,免疫治疗的预后和预测生物标志物

Ziyan Zhang¹, Guihua Yang², Yuming Xing³

¹Institute of Stomatology, Baotou Medical College, China.

Advances in clinical and experimental medicine : official organ Wroclaw Medical University

|March 16, 2026

概括

途径突变累积乱评分 (PMAPscore) 能够有效预测晚期胃癌患者的免疫治疗反应和存活率. 这种新型生物标志物的性能优于现有方法,有助于治疗分层,以获得更好的患者结果.

科学领域:

在瘤学瘤学.
基因组学就是基因组学.
免疫治疗是一种免疫疗法.

背景情况:

胃癌 (GC) 具有有限的预测生物标志物,具有显著的死亡挑战.
途径突变累积扰乱评分 (PMAPscore) 使用途径级突变来预测新型免疫疗法反应.

研究的目的:

评估PMAPscore在接受免疫治疗的晚期胃癌患者的预后和预测能力.
开发和验证一个基于PMAP得分的生存结果风险模型.

主要方法:

用免疫疗法治疗的三个独立的胃癌队列 (PUCH,MSK,SMC) 的分析.
开发和验证一个基于PMAP得分的风险模型,用于生存预测.
使用TCGAGC数据,探索高风险和低风险群体中的免疫机制.

主要成果:

通过PMAPscore识别的低风险患者表现出明显改善的无进展生存 (PFS),总生存 (OS) 和持久的临床益处 (DCB).
在多变量分析中,PMAPscore模型的表现优于已有的生物标志物,包括瘤突变负担 (TMB),PD-L1,MSI和GIPS.
低风险瘤表现出增强的抗瘤免疫力,由增加的HLA基因表达和更大的B细胞和NK细胞透表明.

结论:

基于PMAPscore的风险模型是预测晚期胃癌生存率和免疫治疗反应的验证和强大的工具.
该PMAPscore为分层患者和优化治疗策略的临床应用提供了便利.

关键词:

路径突变累积扰乱得分 (PMAP得分)胃癌 (GC) 是一种癌症.免疫疗法反应的免疫疗法反应预后生物标志物预后生物标志物

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