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相关概念视频

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

740
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...
740
T Cell Types and Functions01:24

T Cell Types and Functions

1.0K
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...
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Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

923
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
923
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

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Overview
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相关实验视频

Updated: Jul 6, 2025

Tumor Transplantation for Assessing the Dynamics of Tumor-Infiltrating CD8+ T Cells in Mice
07:36

Tumor Transplantation for Assessing the Dynamics of Tumor-Infiltrating CD8+ T Cells in Mice

Published on: June 12, 2021

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T细胞耗尽的情况

Andrew Baessler1,2, Dario A A Vignali1,2,3

  • 1Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;

Annual review of immunology
|January 2, 2024
PubMed
概括
此摘要是机器生成的。

T细胞耗尽是一种自然过程,在慢性刺激期间限制免疫反应. 了解T细胞耗尽机制可以帮助改善癌症免疫疗法.

关键词:
癌症 癌症 癌症 癌症 癌症疲 疲 疲 是一种疲.免疫疗法 免疫疗法抑制性受体的受体监管 监管 监管 监管 监管 监管

更多相关视频

Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells
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In Vitro Tumor Cell Rechallenge For Predictive Evaluation of Chimeric Antigen Receptor T Cell Antitumor Function
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In Vitro Tumor Cell Rechallenge For Predictive Evaluation of Chimeric Antigen Receptor T Cell Antitumor Function

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相关实验视频

Last Updated: Jul 6, 2025

Tumor Transplantation for Assessing the Dynamics of Tumor-Infiltrating CD8+ T Cells in Mice
07:36

Tumor Transplantation for Assessing the Dynamics of Tumor-Infiltrating CD8+ T Cells in Mice

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Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells
06:07

Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells

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In Vitro Tumor Cell Rechallenge For Predictive Evaluation of Chimeric Antigen Receptor T Cell Antitumor Function
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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
  • 癌症研究 癌症研究

背景情况:

  • T细胞反应需要平衡病原体防御和自身免疫预防.
  • T细胞耗尽是一种限制慢性抗原暴露期间T细胞活动的调节机制.
  • 耗尽的T细胞表现出功能减弱,增殖和分子形状的改变.

研究的目的:

  • 审查T细胞耗尽的特征,驱动因素和编程.
  • 讨论T细胞耗尽对感染,自身免疫和癌症的影响.
  • 在癌症治疗中探索针对T细胞枯竭的治疗策略.

主要方法:

  • 关于T细胞耗尽的文献综述.
  • 对已耗尽的T细胞的转录,表观遗传和代谢变化的分析.
  • 讨论临床影响和治疗向.

主要成果:

  • 耗尽的T细胞是由高抑制性受体表达和受影响的效应器功能而定义的.
  • 慢性抗原刺激驱动T细胞耗尽的发展.
  • 消耗T细胞阻碍了有效的抗癌免疫力,但可以在治疗上调节.

结论:

  • 消耗T细胞是免疫调节和疾病进展的关键因素.
  • 针对T细胞耗尽途径提供了增强抗瘤免疫力的潜力.
  • 对T细胞耗尽编程的进一步研究对于开发新型癌症疗法至关重要.