多功能T细胞和独特的细胞因子集群印记了抗rAAV2/rAAV9载体免疫反应
Stephan J Holtkamp1, Florian R Lagoda1, Adam Lister2
1Drug Discovery Sciences, Bayer AG, Wuppertal, Germany.
Frontiers in immunology
|December 10, 2024
概括
多功能T细胞对复合腺相关病毒 (rAAV) 载体具有显著的反应性,释放炎症性细胞因子. 这一发现对于推进基因治疗安全性和载体选择至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 基因治疗 基因治疗
背景情况:
- 多功能T细胞增强对病毒感染的控制.
- 对复合腺相关病毒 (rAAV) 载体的免疫反应影响基因治疗的有效性和安全性.
- 对抗rAAV的T细胞多功能性的理解是有限的.
研究的目的:
- 研究人类CD4 T细胞对rAAV2和rAAV9载体的多功能性.
- 在体外描述对rAAV载体的免疫反应.
- 为改善基因疗法安全性和载体选择提供见解.
主要方法:
- 在实验室中,初级人类CD4T细胞暴露于rAAV2或rAAV9载体.
- 使用共同培养的T细胞和单细胞衍生的树突细胞进行的增殖测定.
- 对T细胞激活标记物 (CD25,CD71) 和单个T细胞分泌物的分析.
主要成果:
- 43%和50%的T细胞分别对rAAV2和rAAV9显示出反应性.
- 反应性T细胞表现出Th1的亲炎性,细胞分解性和化学吸引性细胞因子.
- 刺激的T细胞中有12.4% (rAAV2) 和9.6% (rAAV9) 显示出多功能细胞因子反应,包括Granzyme B,MIP1-α和TNF-α.
结论:
- rAAV载体血清型引发了通过多功能T细胞特征的自适应性免疫反应.
- 这些发现对于推进基因疗法安全性,载体选择和免疫性评估至关重要.
- 结果有助于更好的患者选择基于AAV的基因疗法.
更多相关视频
09:37Detection of Polyfunctional T Cells in Children Vaccinated with Japanese Encephalitis Vaccine via the Flow Cytometry Technique
Published on: September 23, 2022
1.8K
08:10Simultaneous Quantification of Anti-vector and Anti-transgene-Specific CD8+ T Cells Via MHC I Tetramer Staining After Vaccination with a Viral Vector
Published on: November 28, 2018
8.5K
相关概念视频
Immune Response Against Viral Pathogens
748
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
748
T Cell Activation and Clonal Selection
658
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...
658
