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Related Concept Videos

T Cell Types and Functions01:24

T Cell Types and Functions

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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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T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

680
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

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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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Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

766
The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
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Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

468
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
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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...
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Pulmonary group 2 innate lymphoid cells: surprises and challenges.

Mucosal immunology·2019
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Concerted IL-25R and IL-4Rα signaling drive innate type 2 effector immunity for optimal helminth expulsion.

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Related Experiment Video

Updated: Jun 11, 2025

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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Molecular mechanisms regulating T helper 2 cell differentiation and function.

Aydan Ch Szeto1, Ana Cf Ferreira1, Andrew Nj McKenzie1

  • 1MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom.

Current Opinion in Immunology
|October 2, 2024
PubMed
Summary
This summary is machine-generated.

T helper 2 (TH2) cells are crucial for fighting parasites and healing tissues. However, their overactivity causes allergies like asthma, and new research reveals key molecular drivers of TH2 cell function.

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Related Experiment Videos

Last Updated: Jun 11, 2025

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Area of Science:

  • Immunology
  • Molecular Biology
  • Cellular Biology

Background:

  • T helper 2 (TH2) cells mediate protective immunity against helminth infections.
  • TH2 cells play a role in tissue homeostasis and repair.
  • Dysregulated TH2 cell activity is implicated in atopic diseases, including asthma and allergies.

Purpose of the Study:

  • To explore the molecular mechanisms governing TH2 cell differentiation.
  • To investigate the molecular mechanisms governing TH2 cell function.
  • To leverage recent technological advancements for deeper insights into TH2 cell biology.

Main Methods:

  • Utilized advanced technologies for molecular analysis.
  • Investigated gene expression patterns related to TH2 cell differentiation.
  • Examined signaling pathways critical for TH2 cell activation and function.

Main Results:

  • Identified novel molecular regulators of TH2 cell differentiation.
  • Elucidated key pathways controlling TH2 cell effector functions.
  • Discovered new targets for modulating TH2 cell responses.

Conclusions:

  • Understanding TH2 cell molecular mechanisms is crucial for both protective immunity and allergic disease.
  • Recent technological advances provide unprecedented insights into TH2 cell biology.
  • Further research into these mechanisms may lead to new therapeutic strategies for allergic conditions.