与SWI/SNF相关的分子亚型重塑瘤微环境特征,并为膀癌的精确治疗策略提供信息
Tiezheng Qi1,2, Wenqi Yang2, Rongxin Liu3
1Department of General Surgery, Xiangya Hospital of Central South University, Changsha, Hunan, China.
Frontiers in cellular and infection microbiology
|March 6, 2026
概括
一个新的SWI/SNF-Score量化了膀癌 (BLCA) 异质性,改善了预后分层和预测免疫治疗反应. 这一分数有助于识别可能从特定治疗中受益的患者子组.
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:
- 膀癌 (BLCA) 呈现出显著的分子和免疫异质性,使治疗复杂化,缺乏有效的生物标志物.
- SWI/SNF染色体重塑复杂突变在癌症中很常见,但它们在BLCA分层和治疗预测中的作用尚不清楚.
研究的目的:
- 调查与SWI/SNF相关的分子模式,用于BLCA中临床上有意义的分层.
- 开发一种定量评分系统,用于评估SWI/SNF相关特征,并预测BLCA中的治疗反应.
主要方法:
- 针对SWI/SNF基因的TCGA-BLCA,IMvigor210,GEO和Xiangya RNA队列的综合分析.
- 无监督的聚类来定义SWI/SNF分子亚型和SWI_SNF_Score的开发.
- 生物信息评估SWI_SNF_Score与亚型,结果,瘤微环境和治疗反应的相关性,并进行外部验证.
主要成果:
- 在BLCA中确定了两个不同的SWI/SNF分子亚型.
- 开发了SWI_SNF_Score,将高得分与基底亚型,免疫激活,RB1/TP53突变和不良预后联系起来,以及低得分与光特性,FGFR3 / KDM6A突变和更好的生存.
- 验证了SWI_SNF_Score在预测多个队列中的亚型,TME表型和治疗敏感性的准确性,包括免疫治疗反应.
结论:
- SWI_SNF_Score提供了一种定量方法来评估BLCA的分子和免疫异质性.
- 这一分数为预后分层和预测膀癌免疫治疗反应提供了临床相关的框架.
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