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Related Concept Videos

Allergic Reactions02:06

Allergic Reactions

Overview
Antigen Presenting Cells01:22

Antigen Presenting Cells

The immune system is a complex network of cells and molecules that protects the body from foreign invaders. T cells, a type of white blood cell, play a crucial role in this process. They recognize and attack foreign substances, such as pathogens, that enter the body.
T cells require the help of antigen-presenting cells (APCs), which process foreign antigens into smaller fragments that can be recognized by T cells. These APCs are highly specialized cells that efficiently internalize antigens...
Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

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 reactivity.
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...
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...
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions01:29

Hypersensitivity Reactions: Delayed Hypersensitivity Reactions

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...

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Related Experiment Video

Updated: Jun 17, 2026

Analysis of Pulmonary Dendritic Cell Maturation and Migration during Allergic Airway Inflammation
07:52

Analysis of Pulmonary Dendritic Cell Maturation and Migration during Allergic Airway Inflammation

Published on: July 23, 2012

[Dendritic cells and allergy].

Krzysztof Pałgan1, Zbigniew Bartuzi, Magdalena Zbikowska-Götz

  • 1Katedra i Klinika Alergologii, Immunologii Klinicznej i Chorób Wewnetrznych, Collegium Medicum im. Ludwika Rydygiera w Bydgoszczy, Uniwersytet im. Mikołaja Kopernika W Toruniu. palgank@wp.pl

Pneumonologia I Alergologia Polska
|December 17, 2009
PubMed
Summary

Dendritic cells (DCs) regulate immune responses and tolerance. This review covers DC development, biology, and their function in asthma and immunotherapy.

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Development and Functional Characterization of Murine Tolerogenic Dendritic Cells
09:51

Development and Functional Characterization of Murine Tolerogenic Dendritic Cells

Published on: May 18, 2018

Related Experiment Videos

Last Updated: Jun 17, 2026

Analysis of Pulmonary Dendritic Cell Maturation and Migration during Allergic Airway Inflammation
07:52

Analysis of Pulmonary Dendritic Cell Maturation and Migration during Allergic Airway Inflammation

Published on: July 23, 2012

Development and Functional Characterization of Murine Tolerogenic Dendritic Cells
09:51

Development and Functional Characterization of Murine Tolerogenic Dendritic Cells

Published on: May 18, 2018

Area of Science:

  • Immunology
  • Cell Biology

Context:

  • Dendritic cells (DCs) are key regulators of immune responses and tolerance.
  • Understanding DC function is crucial for developing new therapeutic strategies.

Purpose:

  • To review current knowledge on dendritic cell development and biology.
  • To explore the role of dendritic cells in asthma pathogenesis.
  • To discuss the application of dendritic cells in immunotherapy.

Summary:

  • Dendritic cells (DCs) are crucial immune cells with a dual role in promoting reactivity and tolerance.
  • Their development and biology are complex, involving intricate signaling pathways.
  • DCs significantly influence the course of allergic diseases like asthma and are central to immunotherapy approaches.

Impact:

  • Provides a comprehensive overview of dendritic cell biology.
  • Highlights the importance of DCs in asthma.
  • Informs future research on DC-based immunotherapies for allergic diseases.