卡尔T细胞膜伪装纳米催化剂增加了卡尔T细胞治疗对固体瘤的有效性
Wenjing Wu1, Haimei Li2, Wenqi Chen1
1College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|May 15, 2024
概括
这项研究引入了一种新型纳米催化剂 (ACSP@TCM),通过克服免疫抑制瘤微环境 (TME) 来增强化学抗原受体 (CAR) T细胞治疗固体瘤. 纳米催化剂有效地准瘤并消除它们.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 免疫治疗是一种免疫疗法.
背景情况:
- 免疫抑制性瘤微环境 (TME) 阻碍了仿真抗原受体 (CAR) T细胞治疗对固体瘤的疗效.
- 开发克服TME诱导免疫抑制的策略对于改善CAR T细胞治疗结果至关重要.
研究的目的:
- 开发一种CAR T细胞膜伪装的纳米催化剂 (ACSP@TCM),以增强CAR T细胞治疗固体瘤的效果.
- 在固体瘤模型中研究ACSP@TCM的协同治疗效果和成像能力.
主要方法:
- 通过在CAR T细胞膜中封装Au/Cu2-xSe和3-bromopyruvate来合成ACSP@TCM.
- 这项研究评估了ACSP@TCM.的准效率,化学动力学/光热疗法 (CDT/PTT) 效应以及TME调节性质.
- 光声学 (PA) 和计算机断层扫描 (CT) 图像被用来指导治疗.
主要成果:
- 与同类瘤细胞膜伪装相比,CAR T细胞膜伪装证明了优越的瘤向.
- ACSP@TCM表现出协同的CDT/PTT效应,诱导NALM 6细胞中的免疫细胞死亡 (ICD).
- 3-甲酸抑制了糖解,调节了TME酸度,改善了CAR T细胞存活率,从而显著提高了CAR T细胞治疗的疗效和彻底消除了瘤.
结论:
- ACSP@TCM是一个有前途的策略,通过克服TME介导的免疫抑制来增强固体瘤的CAR T细胞治疗.
- 多功能纳米催化剂为改善瘤治疗提供协同治疗效果和成像指导.
- 这种方法为增强CAR T细胞治疗固体恶性瘤的临床转化提供了一个新的平台.
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