通过基于HER2的仿真抗原受体 (CAR) 进行向化疗,工程T细胞膜涂层的聚合纳米粒子被工程T细胞膜涂层
Serkan Yaman1,2, Harish Ramachandramoorthy1,2, Priyanka Iyer1
1Department of Bioengineering, University of Texas at Arlington, TX, USA.
Bioactive materials
|January 29, 2024
概括
这项研究开发了用于向肺癌治疗的新型嵌合抗原受体 (CAR) T细胞膜涂层纳米颗粒. 这些CAR-T-MNP在体外和体内表现出有效的抗癌活性,有望改善治疗结果.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 癌症免疫疗法癌症免疫疗法
背景情况:
- 细胞膜衍生的纳米粒子 (NP) 为药物输送提供生物模拟优势,包括减少清除和改变免疫反应.
- 采用免疫疗法,特别是使用嵌合抗原受体 (CAR) T细胞,显示出癌症特异性治疗的重大前景.
- 将这些方法结合起来,可能会导致用于增强癌症治疗的先进药物输送系统.
研究的目的:
- 开发一种新的仿生药物载体,使用CAR工程T细胞膜用于向癌症治疗.
- 为了研究含有西斯的,CAR-T细胞膜涂层的PLGA纳米粒子 (CAR-T-MNPs) 对HER2+肺癌的疗效.
- 评估CAR-T-MNP在肺癌模型中的体外和体内性能.
主要方法:
- 通过lentiviral转导工程抗HER2CAR-T细胞.
- 提取的T细胞膜和涂层的西斯加载的聚 (D,l-乳酸-co-糖酸) (PLGA) 纳米颗粒,以创建CAR-T-MNP.
- 使用显微镜和流动细胞计测定CAR-T-MNP的特征,评估药物释放,并评估在HER2+癌细胞和小鼠模型中的体外/体内疗效.
主要成果:
- 在21天内,CAR-T-MNPs表现出持续的思丁释放,并且在体外有效地抑制了HER2+癌细胞的生长.
- 在体外吸收研究显示,A549细胞对CAR-T-MNPs的细胞吸收增加.
- 在体内研究表明,在肺癌小鼠模型中,CAR-T-MNPs的优选瘤定位和瘤生长的显著减少.
结论:
- 开发的CAR-修饰的细胞膜涂层NP平台 (CAR-T-MNPs) 在体外和体外肺癌治疗中都是有效的.
- 这种模仿细胞的药物载体系统有望改善肺癌治疗结果.
- 在癌症治疗中,CAR设计的膜涂层NP代表了针对性药物输送的有希望的战略.
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