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Related Concept Videos

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

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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...
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T Cell Types and Functions01:24

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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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B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

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The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
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Cytotoxic T Cells-mediated Immune Response01:27

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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.
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Related Experiment Video

Updated: Oct 1, 2025

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

Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells

Published on: March 28, 2025

509

Metabolic dynamics instruct CD8+ T-cell differentiation and functions.

Alessio Bevilacqua1, Zhiyu Li1,2, Ping-Chih Ho1,3

  • 1Department of Fundamental Oncology, University of Lausanne, Lausanne, Switzerland.

European Journal of Immunology
|March 7, 2022
PubMed
Summary

Metabolism significantly influences CD8+ T-cell differentiation and function. Metabolic reprogramming is crucial for T-cell responses, and its dysregulation can lead to T-cell exhaustion in chronic diseases.

Keywords:
T-cell differentiationT-cell exhaustionT cellsinfectionmetabolism

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Generation of Immature, Mature and Tolerogenic Dendritic Cells with Differing Metabolic Phenotypes
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Area of Science:

  • Immunology
  • Cell Metabolism
  • Molecular Biology

Background:

  • Cytotoxic CD8+ T-cells are vital for adaptive immunity against infections and cancer.
  • T-cell activation involves metabolic pathways supporting energy demands and lineage differentiation.
  • Metabolic deficits and stress can impair T-cell differentiation, leading to exhaustion.

Purpose of the Study:

  • To review the role of metabolism in CD8+ T-cell differentiation and function.
  • To discuss metabolic dysregulation contributing to T-cell exhaustion in tumor and chronic viral infections.
  • To summarize strategies for metabolic reprogramming to enhance CD8+ T-cell immunity.

Main Methods:

  • Literature review of studies on T-cell metabolism and differentiation.
  • Analysis of metabolic pathways in CD8+ T-cells.
  • Examination of metabolic dysregulation in T-cell exhaustion.

Main Results:

  • Metabolic reprogramming directly impacts CD8+ T-cell lineage commitment and effector functions.
  • Specific metabolic pathways are altered during T-cell activation and differentiation.
  • Dysregulated metabolism is a hallmark of exhausted T-cells in chronic conditions.

Conclusions:

  • Metabolism is a critical determinant of CD8+ T-cell fate and function.
  • Targeting metabolic pathways offers potential therapeutic strategies for enhancing anti-tumor and anti-viral immunity.
  • Understanding T-cell metabolism is key to overcoming T-cell exhaustion.