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Related Concept Videos

T Cell Types and Functions01:24

T Cell Types and Functions

2.7K
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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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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B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

17.1K
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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Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

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Overview
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Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

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The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
9.2K
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions01:29

Hypersensitivity Reactions: Delayed Hypersensitivity Reactions

32
Delayed-Type Hypersensitivity (DTH), or Type IV hypersensitivity, is a cell-mediated immune response. It occurs when T cells, rather than antibodies, mediate a reaction to specific antigens. It is characterized by a delayed onset (1-2 days) and involves the recruitment of macrophages to the inflammation site.The initiation of a DTH response begins with the sensitization of T cells. During this phase, which lasts at least 1-2 weeks, antigen-specific T cells are activated, clonally expanded, and...
32

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Related Experiment Video

Updated: Feb 19, 2026

Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
12:59

Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes

Published on: September 26, 2013

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TH2 cell development and function.

Jennifer A Walker1, Andrew N J McKenzie1

  • 1Medical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK.

Nature Reviews. Immunology
|October 31, 2017
PubMed
Summary
This summary is machine-generated.

T helper 2 (TH2) cells drive immune responses and tissue repair but also cause asthma and allergy. New research reveals how T cells integrate signals for TH2 differentiation, offering therapeutic targets.

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Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets
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Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets

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Related Experiment Videos

Last Updated: Feb 19, 2026

Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
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Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets
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Evaluation of T Follicular Helper Cells and Germinal Center Response During Influenza A Virus Infection in Mice
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Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • T helper 2 (TH2) cells mediate protective type 2 immunity against pathogens and aid tissue repair.
  • Dysregulated TH2 responses are implicated in chronic inflammatory conditions like asthma and allergies.

Purpose of the Study:

  • To review recent advances in understanding TH2 cell differentiation.
  • To explore how diverse molecular signals influence TH2 cell transcriptional and epigenetic programming.
  • To identify new therapeutic strategies for TH2-mediated diseases.

Main Methods:

  • Review of current literature on TH2 cell differentiation pathways.
  • Integration of data from single-cell transcriptomics and proteomics.
  • Analysis of novel in vivo cell fate mapping techniques.

Main Results:

  • T cell integration of signals from dendritic cells, innate lymphoid cells, and epithelium is crucial for TH2 differentiation.
  • Understanding these signaling pathways provides novel therapeutic targets for asthma and allergy.
  • Advanced techniques reveal T cell diversity and disease-related plasticity.

Conclusions:

  • Recent insights enhance our comprehension of TH2 cell differentiation mechanisms.
  • Targeting TH2 cell pathways offers promising therapeutic avenues for allergic diseases.
  • Emerging technologies will further elucidate T cell heterogeneity and disease pathology.