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Related Concept Videos

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

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...
T Cell Types and Functions01:24

T Cell Types and Functions

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

Cytotoxic T Cells-mediated Immune Response

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...
B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

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...
Lineage Commitment01:21

Lineage Commitment

Commitment is the  process whereby stem cells:
Antigen Processing Pathways01:31

Antigen Processing Pathways

MHC molecules are key players in the immune response, enabling T cells to recognize and respond to specific antigens. They are present on the surface of all nucleated cells in the body and are instrumental in presenting antigens to T cells and activating them. T cells recognize the MHC-antigen complex and initiate an immune response. MHC class I and MHC class II are two main types of MHC molecules, each associated with a distinct antigen processing pathway.
MHC Class I: Presenting Endogenous...

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Related Experiment Video

Updated: May 24, 2026

Measuring Mitochondrial Function of Na&#239;ve and Effector CD8 T Cells
06:07

Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells

Published on: March 28, 2025

Metabolic pathways in T cell fate and function.

Valerie A Gerriets1, Jeffrey C Rathmell

  • 1Department of Pharmacology and Cancer Biology, Duke University, Durham, NC 27710, USA.

Trends in Immunology
|February 21, 2012
PubMed
Summary
This summary is machine-generated.

T cell metabolism is dynamic and crucial for immune responses. Understanding these metabolic differences in T cell subtypes offers new avenues for treating inflammatory and autoimmune diseases.

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Multicolor Flow Cytometry-based Quantification of Mitochondria and Lysosomes in T Cells
06:22

Multicolor Flow Cytometry-based Quantification of Mitochondria and Lysosomes in T Cells

Published on: January 9, 2019

Related Experiment Videos

Last Updated: May 24, 2026

Measuring Mitochondrial Function of Na&#239;ve and Effector CD8 T Cells
06:07

Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells

Published on: March 28, 2025

Multicolor Flow Cytometry-based Quantification of Mitochondria and Lysosomes in T Cells
06:22

Multicolor Flow Cytometry-based Quantification of Mitochondria and Lysosomes in T Cells

Published on: January 9, 2019

Area of Science:

  • Immunology
  • Cellular Metabolism

Background:

  • T cell regulation is vital for pathogen defense and preventing autoimmunity.
  • T cell metabolism is dynamic and influences T cell growth, activation, and differentiation.

Purpose of the Study:

  • To review signaling pathways controlling T cell metabolism.
  • To explore the integration of T cell metabolic phenotypes with T cell function.

Main Methods:

  • Literature review of signaling pathways.
  • Analysis of metabolic phenotypes in distinct T cell subtypes.

Main Results:

  • Specific metabolic pathways provide energy and precursors for T cell functions.
  • Effector, regulatory, memory, and alloreactive T cells exhibit distinct metabolic requirements.

Conclusions:

  • Metabolic differences in T cells are integral to their function in immunity and inflammation.
  • Targeting T cell metabolism may offer novel therapeutic strategies for immune and autoimmune disorders.