使用基因工程人工抗原呈现细胞制造的CAR T细胞的表征
Ali Sayadmanesh1,2, Mohamad Azadbakht2,3, Kheirollah Yari4
1Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
Cell journal
|October 22, 2023
概括
人工抗原呈现细胞 (aAPC) 可以有效地扩展仿真抗原受体 (CAR) T 细胞,类似于传统的抗体方法. 这项研究表明,aAPC介导的扩张产生了具有独特免疫类型的强有力的CAR T细胞,这对于改善癌症治疗制造至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞疗法细胞疗法
- 癌症研究 癌症研究
背景情况:
- 化学抗原受体 (CAR) T细胞疗法在癌症治疗方面表现有前途.
- 改进CAR T细胞制造是实现更广泛可访问性的关键.
- 人工抗原呈现细胞 (aAPC) 正在探索增强T细胞扩张.
研究的目的:
- 使用aAPC介导扩张生成的CAR T细胞的特征.
- 为了比较基于aAPC的CAR T细胞生成与传统的抗体方法.
- 评估扩张效率,免疫表型和细胞毒性.
主要方法:
- 设计K562细胞以表达膜结合的抗CD3 (mOKT3) 作为aAPCs.
- 与aAPCs或动不动的抗CD3/抗CD28抗体共同培养的PBMCs用于T细胞激活.
- 特征T细胞扩张,激活标记,IFN-γ分泌,CD4/CD8比率,记忆表型,疲劳和细胞毒性.
主要成果:
- 设计的aAPC线有效地扩大了CAR T细胞,与基于抗体的方法相比.
- aAPC激活导致CD8+和效应记忆T细胞的比例更高.
- 在IFN-γ分泌,细胞毒性活性或疲劳方面没有发现显著差异.
结论:
- 通过aAPC介导的方法和基于抗体的方法都能产生强大的CAR T细胞.
- 这两种方法之间存在免疫表型的差异.
- 这些发现支持以APC为媒介的扩张,以改善CAR T细胞制造和未来的应用.
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