人类T细胞载有超偏磁铁氧化物纳米粒子,保留了抗原特异性TCR功能
Felix Pfister1, Jan Dörrie2, Niels Schaft2
1Department of Otorhinolaryngology, Head and Neck Surgery, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung Professorship, University Hospital Erlangen, Erlangen, Germany.
Frontiers in immunology
|September 4, 2023
概括
超偏磁铁氧化物纳米粒子 (SPIONs) 可以装载到人类T细胞上,而不会影响它们的机制或功能. 这使得用于固体瘤的磁性向采用性T细胞疗法成为可能.
科学领域:
- 免疫治疗是一种免疫疗法.
- 细胞力学 细胞力学
- 纳米技术 纳米技术
背景情况:
- 收养T细胞转移对血液癌症有效,但由于免疫抑制性瘤微环境和T细胞贩运不良,对固体瘤是有限的.
- 超偏磁铁氧化物纳米粒子 (SPIONs) 提供了一种在特定位置磁性控制和丰富细胞的方法.
研究的目的:
- 调查SPION加载对初级人类T细胞对磁性向采用T细胞疗法的影响.
- 评估SPIONs对T细胞机制和抗原特异性反应的影响.
主要方法:
- 人类T细胞充满了SPIONs.
- 通过评估可变性来分析细胞力学.
- 在通过内源性或外源性T细胞受体 (TCRs) 刺激后评估T细胞反应,这些受体对黑色素瘤或细胞巨病毒抗原具有特异性.
- 增殖,激活标志物表达,细胞因子分泌和瘤细胞杀死在SPION-loaded和控制T细胞之间进行了比较.
主要成果:
- SPION装载并没有改变人类T细胞的细胞力学或可变性.
- 带有SPION的T细胞保持了它们的增殖,激活标记表达和细胞因子分泌.
- 由内源性和外源性TCRs介导的抗原特异性瘤细胞杀死并未受到SPION加载的影响.
结论:
- SPION加载是一种可行的方法,用于为磁性向疗法准备T细胞.
- SPIONs不会损害T细胞功能,为加强向固体瘤的输送铺平了道路.
相关概念视频
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01:26Antigens Involved in Adaptive Immunity
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Complete Antigens
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Complete Antigens
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01:28Diversity of Antigen Receptors
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01:22T Cell Activation and Clonal Selection
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01:24T Cell Types and Functions
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