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Updated: Aug 4, 2026
09:04
Activation and Measurement of NLRP3 Inflammasome Activity Using IL-1β in Human Monocyte-derived Dendritic Cells
Published on: May 22, 2014
Endotoxin recognition and signal transduction by the TLR4/MD2-complex
Katherine A Fitzgerald1, Daniel C Rowe, Douglas T Golenbock
1Division of Infectious Diseases and Immunology, University of Massachusetts Medical School, LRB, Room 308, 364 Plantation Street, Worcester, MA 01605, USA.
Microbes and Infection
|December 15, 2004
Summary
Bacterial lipopolysaccharides trigger a mammalian immune response via a receptor complex including Toll-like receptor (TLR)-4. This initiates signaling cascades involving adapter molecules, leading to inflammatory gene expression.
Area of Science:
- Immunology
- Molecular Biology
- Cellular Signaling
Background:
- Bacterial lipopolysaccharides (LPS) are potent immune activators.
- Mammalian cells recognize LPS through a specific receptor complex.
Purpose of the Study:
- To elucidate the molecular mechanisms of LPS-induced signaling.
- To identify key adapter molecules involved in the inflammatory response.
Main Methods:
- The study focuses on the receptor complex (CD14, TLR-4, MD-2).
- Investigates the role of Toll-interleukin-1 resistance (TIR)-domain-containing adapter molecules.
Main Results:
- The receptor complex initiates signal transduction upon LPS recognition.
- Adapter molecules are crucial for downstream effector recruitment and activation.
Conclusions:
- The identified pathway is essential for activating transcription factors.
- This process drives inflammatory gene expression in response to bacterial components.
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