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莫赛克:多特征基因组不稳定性得分独立预测了2,138名患者的肉瘤生存率

Daniel Schneider¹, Jacob Gluski, Ethan D L Brown

¹Department of Neurosurgery, Donald and Barbara Zucker Hofstra School of Medicine at Northwell, Manhasset, NY.

American journal of clinical oncology

|May 5, 2025

概括

一个新的瘤综合不稳定性综合体 (MOSAIC) 评分,整合基因组标记,预测瘤患者的生存率. 较高的MOSAIC分数表明更糟糕的结果,提供了超越传统组织学基础风险分层的见解.

科学领域:

在瘤学瘤学.
基因组学就是基因组学.
计算生物学计算生物学

背景情况:

肉瘤的临床风险分层主要依赖于组织学,尽管基因组分析识别了预后标志物.
在肉瘤中多个基因组不稳定特征的综合预后影响仍然不太清楚.

研究的目的:

为了评估一种新的瘤综合不稳定性综合体 (MOSAIC) 评分的预后效用.
评估MOSAIC得分与肉瘤患者的生存结果之间的关联.

主要方法:

对2138名来自瘤 (MSK, Nat Commun. 的瘤患者的二次分析. 2022) 的数据集.
MOSAIC评分整合了六个基因组不稳定性标志物:突变负担,全基因组倍增,拷贝数量改变,阴性,微卫星不稳定性和基因组改变的部分.
经过对临床共变量进行调整的Cox比例危险模型被用于评估生存相关性.

主要成果:

较高的MOSAIC得分与较差的生存率显著相关 (HR=1.11每单位,P=4.67 × 10-8).
观察到值效应,最高四分位数显示死亡风险几乎翻了一番.
染色体不稳定标记 (拷贝数的改变,全基因组的翻倍) 比点突变对得分的贡献更大.

结论:

MOSAIC评分在肉瘤中提供了独立的预后价值,优于传统的临床因素.
整合常规的基因组特征提高了适用性,并可以预测免疫治疗反应.
MOSAIC评分为肉瘤生物学和潜在的治疗点提供了新的见解.

关键词:

癌症基因组学癌症基因组学基因组的不稳定性分子风险分层化分子风险分层化.肉瘤预后预后

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