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相关概念视频

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

655
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...
655

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相关实验视频

Updated: Jun 4, 2025

Discrimination of Seven Immune Cell Subsets by Two-fluorochrome Flow Cytometry
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深度分析解构了与记忆CD8+ T细胞组织居住相关的特征.

Milcah C Scott1, Zoë Steier2, Mark J Pierson3

  • 1Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA.

Immunity
|December 21, 2024
PubMed
概括
此摘要是机器生成的。

组织内存CD8+T (Trm) 细胞对免疫至关重要,但定义它们是具有挑战性的. 这项研究揭示了Trm细胞的身份是复杂的和取决于背景的,而不是单一的签名.

关键词:
CD69 CD69 是一个在CITE-seqq.抗原持久性 抗原持久性细胞标记物 细胞标记物脏的小鼠 脏的小鼠感染的感染感染.记忆中的CD8(+) T细胞 CD8(+) T细胞移民 移民 迁移 迁移组织内存T细胞 组织内存T细胞

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In Situ Detection of Autoreactive CD4 T Cells in Brain and Heart Using Major Histocompatibility Complex Class II Dextramers
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Multicolor Flow Cytometry-based Quantification of Mitochondria and Lysosomes in T Cells
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相关实验视频

Last Updated: Jun 4, 2025

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科学领域:

  • 免疫学 免疫学 免疫学
  • 细胞生物学 细胞生物学
  • 系统生物学 系统生物学

背景情况:

  • 组织内存CD8+T (Trm) 细胞对于控制感染和癌症至关重要.
  • 由于它们的非循环性质,定义Trm细胞具有挑战性,通常依赖于推断的居住代理.
  • 目前用于识别Trm细胞的现有方法在普遍性和准确性方面存在局限.

研究的目的:

  • 评估用于定义组织内存CD8+T细胞的当前代理的有效性和普遍性.
  • 调查影响Trm细胞分化的因素,并确定强大的组织居住标记物.
  • 为在各种免疫学背景下评估Trm细胞提供实用建议.

主要方法:

  • 集成的小鼠生物体模型,采用多器官采样和血管内染色.
  • 使用了急性和慢性感染模型,包括"脏的小鼠" (具有复杂微生物环境的小鼠).
  • 采用单细胞多组学来分析T细胞分化状态和基因表达.

主要成果:

  • 记忆T细胞表现出不同的分化状态,受位置,刺激史,抗原持久性和环境因素的影响.
  • 对于Trm细胞来说,可能不存在一个通用的,特定于居住地的基因特征.
  • 确定了特定的基因和表型,这些基因和表型在各种疾病中与组织居住强烈相关.

结论:

  • 目前用于定义Trm细胞的方法由于T细胞分化的复杂性和适应性而存在固有的局限性.
  • 对各种刺激和环境输入的T细胞适应性很广泛.
  • 为更准确的Trm细胞评估提供了精细的策略和建议.