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工程设计的CAR-NKT细胞外囊泡抑制瘤进展,增强抗瘤免疫力

Xiaopei Hao^1,2, Chengming Qu^3,4, Yanzhao Zhou⁵

¹Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|January 20, 2026

概括

CAR-NKT细胞疗法显示出有前途,但有毒性问题. 新的CARTM4SF1 - 细胞外囊泡 (EVs) 提供了优越的抗瘤效果,降低了毒性,促进了癌症免疫治疗.

科学领域:

免疫治疗是一种免疫疗法.
纳米技术纳米技术
在瘤学瘤学.

背景情况:

化学抗原受体工程自然杀手T (CAR-NKT) 细胞治疗是一种有前途的癌症免疫疗法.
然而,其临床应用受到急性毒性和不良影响的限制.

研究的目的:

开发一种针对CAR-NKT细胞的TM4SF1的新型纳米体.
引入CARTM4SF1细胞外囊泡 (EVs) 作为直接CAR-NKT细胞治疗的更安全的替代方案.

主要方法:

通过使用针对TM4SF1.1.的新型纳米体,设计了CAR^TM4SF1-NKT细胞.
开发了CAR-EVs疗法.
在体外和体内评估的抗瘤疗效和毒性,包括肝细胞癌 (HCC) 的小鼠模型.

主要成果:

与传统的CARTM4SF1细胞相比,CARTM4SF1-EVs表现出优越的抗瘤疗效和显著降低的毒性.
在HCC模型中,CAR^TM4SF1-EV选择性地准表达TM4SF1的瘤细胞,诱导免疫细胞死亡 (ICD),并抑制瘤生长和转移.
CARTM4SF1-EVs重塑了免疫抑制瘤微环境 (TME),增强了CD8+T细胞活性,并与免疫检查点阻塞 (ICB) 疗法协同作用.

结论:

CAR-EVs疗法是针对癌症免疫治疗的安全有效策略.
这种方法有可能在癌症治疗中得到更广泛的临床应用.
当与ICB结合时,CAR-EVs建立了持久的抗瘤免疫记忆.

关键词:

这是CAR-NKTT.在TM4SF1纳米体中.癌症治疗疗法癌症治疗细胞外囊泡中的细胞外囊泡.免疫疗法免疫疗法

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