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一个音调信号代码预测了分散的中线质瘤中CAR-T细胞的有效性

Emily B Deng¹, Xiaowen Zhong², Dazhuan Xin²

¹Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.

bioRxiv : the preprint server for biology

|November 19, 2025

概括

抑制CAR T细胞增强信号,提高了对扩散中线质瘤的疗效. 这一发现为设计CAR T细胞疗法和预测患者结果提供了新的框架.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
生物技术是生物技术.

背景情况:

扩散中线质瘤 (DIPG/DMG) 是一种致命的儿科脑瘤,治疗选择有限.
卡尔T细胞疗法显示出希望,但面临着挑战,如有限的持久性和过早的疲劳.
目前用于CAR T细胞耗尽或干细胞的生物标志物已显示出有限的效用.

研究的目的:

系统地比较针对B7-H3的CAR T细胞结构,用于DIPG治疗.
确定CAR T细胞治疗性能的关键决定因素.
开发一个对CAR T细胞治疗疗效的预测框架.

主要方法:

对针对B7-H3.3的多个CAR T细胞结构进行系统比较.
在患者衍生DIPG模型中评估CAR T细胞的性能.
集成的多omics和单细胞分析,以识别预测基因特征.

主要成果:

在B7-H3 CAR T细胞中抑制的增强信号导致优异的瘤杀死,持久性和抗疲劳性.
在 CAR T 细胞中观察到 CAR 膜聚合的减少,而 CAR T 细胞的强力信号受限.
一个CAR-T增强体信号相关的基因特征有效地预测了多个临床试验中的治疗疗效.

结论:

抗原独立的CAR激活 (增强信号) 是CART细胞疗效的关键决定因素.
调节强化信号提供了一种策略,以增强CAR T细胞治疗DIPG和其他癌症的策略.
识别的基因特征为预测CAR T细胞治疗结果提供了有价值的工具.

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