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衰老特有的分子亚型分层化瘤微环境的标志,并指导膀癌的精准医学
Luzhe Yan1,2,3,4,5, Haisu Liang1,2,3,4,5, Tiezheng Qi1,2,3,4,5
1Department of Urology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
BMC cancer
|February 19, 2025
概括
针对膀癌 (BLCA),开发了一种新的与衰老相关的分子分类系统 - - Senescore. 较高的Senescore患者显示免疫透率增加,对免疫疗法和化疗反应更好.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 衰老研究研究 衰老研究
背景情况:
- 膀癌 (BLCA) 不成比例地影响老年人,患病率和死亡率很高.
- 现有的BLCA分子亚型显示异质性,限制了普遍适用性.
- 对于新型BLCA亚型系统的需求至关重要,这些系统包含了老化,这是一个与年龄相关的特征.
研究的目的:
- 开发一个与衰老相关的分子分类和量化系统,用于膀癌.
- 通过对现有的分子亚型,临床结果和瘤免疫微环境验证新系统.
- 探索该系统在确定BLCA治疗点方面的潜力.
主要方法:
- 对癌症基因组图谱计划 (TCGA) -BLCA队列进行了无监督聚类,以创建与衰老相关的分子分类和精确量化系统 (Senescore).
- 对已确定的分子亚型,治疗策略,临床结果,免疫微环境 (TME),免疫检查点和治疗目标进行了系统的验证.
- 使用了外部验证队列 (Xiangya,IMvigor210,元队列) 和多重免疫光学.
主要成果:
- 塞内斯科尔系统与免疫透和细胞衰老有相关性.
- 较高的Senescore患者与基底亚型,增加的免疫透,升高的驱动基因突变和更高的衰老相关分泌表现型 (SASP) 因素的表达相关.
- 尽管预后较差,但更高的Senescore患者对免疫疗法和新辅助化疗反应更强.
结论:
- 开发的分子亚型和Senescore系统准确地反映了BLCA中与年龄相关的生物特征,显示了临床应用潜力.
- 这种个性化的评估框架可以确定BLCA特定的老化目标.
- 这些发现支持将衰老研究纳入膀癌治疗策略.
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