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原破坏性attIL12 TIL疗法通过双信号激活和CCKAR降低增强深层T细胞透

Jiemiao Hu¹, Harjeet Singh¹, Yining Jin¹

¹Division of Pediatrics, Department of Pediatrics-Research, The University of Texas MD Anderson Cancer Center, Houston, TX 77030.

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

|October 6, 2025

概括

新的T细胞疗法通过禁用瘤细胞的原蛋白生产来向富含原蛋白的瘤. 这增强了T细胞透和瘤生长抑制,为治疗困难癌症提供了潜在的潜力.

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:

T细胞疗法面临的挑战是穿透瘤原体屏障.
目前针对癌症相关纤维细胞的现有疗法对瘤细胞衍生的原蛋白的疗效有限.
瘤细胞原抑制T细胞活动,并为瘤微环境做出贡献.

研究的目的:

研究一种新的T细胞疗法,以克服富含原蛋白的瘤中的抗性.
评估修饰T细胞在减少瘤细胞原蛋白生产中的有效性.
阐明T细胞破坏瘤原蛋白合成的机制.

主要方法:

膜固的互白素12臂 (attIL12) T细胞的发展,向细胞表面的维门丁 (CSV).
在体外和体内评估attIL12修饰的瘤透淋巴细胞 (TILs) 在CCKAR高的瘤细胞和肉瘤患者衍生异种移植 (PDXs) 上.
分析分子信号通路,包括干扰素,转变生长因子β,SMAD和AKT信号.

主要成果:

attIL12-TILs有效地降低了CCKAR高瘤细胞和PDX模型中的原蛋白生产.
治疗疗效取决于CSV对瘤细胞和TCR对attIL12-TILs之间的同时相互作用.
该机制涉及协同作用的干扰素玛生成,CCKAR下调和抑制TGF-β/SMAD和CCKAR-AKT信号传递.

结论:

通过attIL12-TILs破坏瘤细胞的原蛋白生产,可以克服对T细胞治疗的抗性.
这种方法显著增强了富含原蛋白的瘤中的T细胞透和瘤生长抑制.
attIL12-TIL疗法显示出治疗高度,富含原蛋白的癌症的显著临床潜力.

关键词:

这就是CCKARAR.透T细胞的透情况在attIL12-TIL中使用.它们是原蛋白.这是PDX肉瘤.

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