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高亲和度的仿制抗原受体信号诱导人体调节性T细胞中的炎症程序
Russell W Cochrane1,2,3, Rob A Robino1,2,3, Bryan Granger4
1Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA.
Molecular therapy. Methods & clinical development
|December 17, 2024
概括
调节性T细胞 (Tregs) 中的化学抗原受体 (CAR) 激活可以增强它们的细胞毒性,但降低它们的抑制功能. 定制CAR设计对于有效的基于Treg的疗法至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞疗法细胞疗法
- 分子生物学分子生物学
背景情况:
- 调节性T细胞 (Tregs) 对免疫耐受性至关重要.
- 化学抗原受体 (CARs) 在工程抗原特异性Tregs方面表现有前途.
研究的目的:
- 为了比较CAR激活与内源性T细胞受体 (TCR) /CD28激活对人类Tregs的影响.
- 研究工程受体对Treg生物学和功能的影响.
主要方法:
- 人类Tregs与CARs进行了工程设计,并与通过内源TCR/CD28激活的Tregs进行了比较.
- 进行RNA测序以分析基因表达变化.
- 评估了细胞因子的产生和细胞表面标记物的表达.
主要成果:
- 与TCR/CD28激活的Tregs相比,CAR Tregs表现出增加的细胞毒性和降低的抑制能力.
- 卡尔Tregs调高了效应T细胞基因程序和分泌的炎症细胞因子.
- 一个CAR Tregs的子集表达了CD40L并产生了IFN-γ.
- 降低CAR抗原亲和力调节了这些效应.
结论:
- 工程受体激活显著改变Treg功能,促进炎症概况.
- CAR设计,包括抗原亲和力,影响Treg行为.
- 定制CAR结构对于优化基于Treg的免疫疗法至关重要.
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