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空间转录学揭示了瘤微环境驱动的侵袭性叶膜癌的亚型

Matteo Serra¹, Mattia Rediti^1,2, Laetitia Collet¹

¹Breast Cancer Translational Research Laboratory J.-C. Heuson, Institut Jules Bordet, Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles, Brussels 1070, Belgium.

Proceedings of the National Academy of Sciences of the United States of America

|February 4, 2026

概括

这项研究揭示了基于空间瘤微环境 (TME) 架构的侵入性叶膜癌 (ILC) 的不同亚型. 这些新分类改善了风险分层,并为ILC患者确定了潜在的治疗点.

科学领域:

在瘤学瘤学.
基因组学就是基因组学.
生物信息学是一种生物信息学.

背景情况:

侵袭性叶状癌 (ILC) 是第二个最常见的乳腺癌亚型,具有独特的临床和生物行为.
当前的分子分类往往忽视了ILC的复杂空间组织和瘤微环境 (TME).
了解ILC的TME对于准确的预后和向治疗至关重要.

研究的目的:

在激素受体阳性,HER2阴性 (HR+/HER2-) ILC中描述空间组织和TME异质性.
为ILC开发一个多式分类系统,整合空间,形态和基因表达数据.
评估新的ILC分类的预后价值.

主要方法:

在43个HR+/HER2-ILC瘤上进行了空间转录学.
空间基因表达与组织学和单细胞解的整合.
基于空间指标,形态和基因表达的多式分类 (ILC4TME) 的开发.

主要成果:

在ILC TME中观察到高的瘤内部和瘤内部异质性.
确定了四种不同的ILC亚型 (NSE,P,ARE,MIE),它们被统称为ILC4TME.
ILC4TME分类在外部数据集和多变量模型中显示出预测价值,其性能优于现有的签名.

结论:

ILC4TME分类捕捉了当前方法遗漏的空间和细胞异质性.
这种多模式分类完善了风险分层,并为ILC中的向治疗提供了一个框架.
特定的亚型 (例如,增殖性) 与预后有关,即使使用标准内分泌疗法.

关键词:

侵袭性叶片性癌瘤 (lobular carcinoma) 是一种侵入性叶片性癌症.分子亚型分子亚型空间转录学空间转录学瘤微环境是一个微环境.

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