经IL-10工程的树突细胞调节异构的CD8+T细胞反应
Marta Fortunato1,2, Giada Amodio1, Silvia Gregori1
1Mechanisms of Peripheral Tolerance Unit, San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy.
International journal of molecular sciences
|June 10, 2023
概括
经过基因工程的人类耐受性树突细胞 (tolDC) 过度表达IL-10,有效抑制细胞毒性CD8+T细胞反应. 这些IL-10工程的tolDC显示出诱导移植和T细胞介导疾病的耐受性.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞疗法细胞疗法
- 移植免疫学 移植免疫学
背景情况:
- 宽容性树突细胞 (tolDC) 对于免疫平衡和耐受性诱导至关重要.
- 现有的基于细胞的疗法旨在利用T细胞介导疾病和移植的tolDC.
- 基因工程 tolDC 提供增强的治疗潜力.
研究的目的:
- 调查IL-10过度表达的人类tolDC (DCIL-10) 调节细胞毒性CD8+T细胞反应的能力.
- 评估DCIL-10在促炎环境中的稳定性和有效性.
- 评估DCIL-10作为一种诱导移植耐受性的细胞产品.
主要方法:
- 开发一种用于基因工程人类tolDC过度表达IL-10 (DCIL-10) 的lentiviral载体协议.
- 评估DCIL-10能够促进特定的T调控型1 (Tr1) 细胞的能力.
- 在体外和体内对DCIL-10调节全原性CD4+和CD8+T细胞反应的评估.
- 在DCIL-10刺激后,分析CD8+T细胞的增殖,激活,阳性和细胞毒性活动.
主要成果:
- DCIL-10成功地促进了特异性Tr1细胞,并调节了全原性CD4+T细胞的反应.
- 在混合淋巴细胞反应 (MLR) 中,DCIL-10显著降低全源CD8+T细胞的增殖和激活.
- 长期的DCIL-10刺激会在没有耗尽的情况下诱导合金特异性性CD8+T细胞,表现出有限的细胞毒性活性.
结论:
- 在人类树突细胞中稳定的IL-10过度表达会产生强大的tolDC群体.
- DCIL-10有效调节细胞毒性全原性CD8+T细胞反应,诱导气而不是疲劳.
- DCIL-10代表了一种有前途的细胞疗法,用于诱导异构移植和T细胞介导疾病的耐受性.
相关概念视频
T Cell Types and Functions
1.1K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.1K
T Cell Activation and Clonal Selection
837
T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
Naive T cells that have not yet encountered an antigen express two primary CD...
837
Cell-mediated Immune Responses
69.1K
Overview
69.1K


