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Related Concept Videos

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...
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...
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...
Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

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...
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...
Diversity of Antigen Receptors01:28

Diversity of Antigen Receptors

Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...

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Related Experiment Video

Updated: May 18, 2026

Isolation of Mouse Lung Dendritic Cells
09:04

Isolation of Mouse Lung Dendritic Cells

Published on: November 22, 2011

Pulmonary dendritic cell development and antigen acquisition.

A Nicole Desch1, Peter M Henson, Claudia V Jakubzick

  • 1Integrated Department of Immunology, University of Colorado School of Medicine, Denver, CO, USA.

Immunologic Research
|September 13, 2012
PubMed
Summary
This summary is machine-generated.

Pulmonary dendritic cells (DCs) are crucial for lung immunity, sampling antigens and directing immune responses. Understanding these cells offers potential for new vaccines and therapies for lung diseases.

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

Published on: July 23, 2012

Human Lung Dendritic Cells: Spatial Distribution and Phenotypic Identification in Endobronchial Biopsies Using Immunohistochemistry and Flow Cytometry
11:02

Human Lung Dendritic Cells: Spatial Distribution and Phenotypic Identification in Endobronchial Biopsies Using Immunohistochemistry and Flow Cytometry

Published on: January 20, 2017

Related Experiment Videos

Last Updated: May 18, 2026

Isolation of Mouse Lung Dendritic Cells
09:04

Isolation of Mouse Lung Dendritic Cells

Published on: November 22, 2011

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

Human Lung Dendritic Cells: Spatial Distribution and Phenotypic Identification in Endobronchial Biopsies Using Immunohistochemistry and Flow Cytometry
11:02

Human Lung Dendritic Cells: Spatial Distribution and Phenotypic Identification in Endobronchial Biopsies Using Immunohistochemistry and Flow Cytometry

Published on: January 20, 2017

Area of Science:

  • Immunology
  • Cell Biology
  • Pulmonary Medicine

Background:

  • Pulmonary dendritic cells (DCs) continuously monitor lung tissue and transport inhaled antigens to lymph nodes.
  • These professional antigen-presenting cells play a key role in initiating immune responses, including tolerance or immunity.

Purpose of the Study:

  • To investigate the diverse roles of distinct pulmonary dendritic cell subsets in the immune system.
  • To explore the potential of dendritic cells for developing advanced vaccine strategies and therapeutics for pulmonary conditions.

Main Methods:

  • Analysis of distinct dendritic cell subsets based on surface molecule expression and tissue location.
  • Intensive study of dendritic cell development and function in lymphoid and non-lymphoid tissues, with a focus on the lung.

Main Results:

  • Identification of distinct pulmonary dendritic cell subsets with specific functions.
  • Demonstration of the dynamic capacity of dendritic cells to modulate immune responses.

Conclusions:

  • Elucidating pulmonary dendritic cell functions is vital for understanding lung immunity.
  • Targeting dendritic cell capabilities may lead to improved vaccines and treatments for pulmonary infections and diseases.