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A Simple and Efficient Method for Testing Immunomodulatory Agents for Generation of Tolerogenic Dendritic Cells from Human CD14+ Monocytes
Published on: April 11, 2025
Dendritic cell subsets and toll-like receptors.
Hubertus Hochrein1, Meredith O'Keeffe
1Bavarian Nordic GmbH, Fraunhoferstrasse 13, D-82152, Martinsried, Germany. hubertus.hochrein@bavarian-nordic.com
Handbook of Experimental Pharmacology
|December 12, 2007
Summary
Toll-like receptors (TLRs) bridge innate and adaptive immunity by sensing pathogens. Different dendritic cell subsets express varying TLRs, influencing pathogen recognition and immune responses.
Area of Science:
- Immunology
- Cell Biology
- Evolutionary Biology
Background:
- Toll-like receptors (TLRs) are conserved pathogen sensors crucial for innate immunity.
- Adaptive immunity, including antigen-presenting cells like dendritic cells, evolved later.
- Dendritic cells present antigens and stimulate lymphocytes, initiating adaptive immune responses.
Purpose of the Study:
- To explore the role of Toll-like receptors in dendritic cell activation.
- To understand how dendritic cell subsets influence immune responses.
- To highlight the interplay between innate and adaptive immunity.
Main Methods:
- Review of existing literature on Toll-like receptors and dendritic cells.
- Analysis of the evolutionary origins of immune system components.
- Comparative analysis of dendritic cell subset functions and receptor expression.
Main Results:
- Dendritic cell activation is regulated by pathogen-associated molecular patterns signaling through TLRs.
- Multiple dendritic cell subsets exist with varying locations, functions, and phenotypes.
- Different dendritic cell subsets express diverse TLRs, leading to varied pathogen sensing and immune responses.
Conclusions:
- Adaptive immunity initiation relies on ancient innate immune receptors like TLRs.
- Dendritic cell subsets exhibit heterogeneity in TLR expression and function.
- This heterogeneity allows for tailored immune responses to different pathogens.
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