Related Experiment Video
Updated: Jun 26, 2026
07:35
Generation of Human Monocyte-derived Dendritic Cells from Whole Blood
Published on: December 24, 2016
Dendritic cells--why can they help and hurt us
1Department of Dermatology, Medical Faculty, Technische Universität Dresden, Dresden, Germany. knut.schaekel@tu-dresden.de
Experimental Dermatology
|February 3, 2009
Summary
Dendritic cells (DCs) are immune cells with dual roles, defending against pathogens but also contributing to allergies and autoimmunity. Understanding DC subtypes and their functions is key for developing new immunotherapies.
Area of Science:
- Immunology
- Cell Biology
Background:
- Dendritic cells (DCs) possess a dual functional capacity, orchestrating immune responses against pathogens and inducing tolerance to self and environmental antigens.
- Dysfunctional DCs, influenced by their microenvironment, can exacerbate allergic and autoimmune diseases, or be exploited by pathogens and cancer cells.
- The diverse functions of DCs necessitate complex signaling integration, with heterogeneity among DC subtypes impacting tissue distribution, receptor expression, and T cell programming.
Purpose of the Study:
- To review recent advancements in understanding dendritic cell (DC) biology.
- To discuss the beneficial and detrimental roles of DCs in health and disease.
- To highlight the therapeutic potential of targeting DC functions for inducing immunity and tolerance.
Main Methods:
- Review of current literature on dendritic cell biology.
- Analysis of findings from transgenic mouse models and selective DC subtype ablation studies.
- Discussion of the implications of DC heterogeneity and plasticity in immune regulation.
Main Results:
- DCs exhibit significant functional plasticity and heterogeneity, with distinct subtypes playing specialized roles in immune responses.
- Understanding DC subtypes and their interactions is crucial for deciphering complex immune decision-making processes.
- Recent research using advanced models is beginning to unravel the intricate complexity of the DC system.
Conclusions:
- Detailed knowledge of DC biology in both mice and humans offers significant promise for therapeutic strategies aimed at inducing immunity or tolerance.
- Targeting specific DC functions could lead to novel treatments for immune-related disorders and cancer.
- Further research into DC subtypes and their functional plasticity is essential for harnessing their full therapeutic potential.
Related Concept Videos
01:24T 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...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
01:40Cell-mediated Immune Responses
Overview
01:27Cytotoxic 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...
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...
01:26Antigens 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.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
01:22Antigen 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...
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...
01:28Cells of the Innate Immune Response
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...