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Endosomal Toll-Like Receptors (Endosomal TLRs)
- Target
- Endosomal TLRs
- Molecular classification
- Pattern Recognition Receptor, Toll-Like Receptor, Receptor, Type I transmembrane protein
01
Overview
Endosomal Toll-like receptors (TLRs) are a subfamily of pattern recognition receptors (PRRs) that detect nucleic acids from pathogens within endosomal compartments. Key members include TLR3, TLR7, TLR8, and TLR9. Activation of these receptors triggers signaling cascades leading to the production of pro-inflammatory cytokines and type I interferons, playing a crucial role in antiviral and antibacterial immunity. However, dysregulation can contribute to autoimmune diseases like SLE. They are localized to endosome membranes and require proteolytic cleavage for full activity.
- Other names
- Intracellular TLRsTLR3, TLR7, TLR8, TLR9
02
Mechanism of action
Inhibition of endosomal TLR activation via interference with receptor trafficking or acidification.
03
Biological functions
Immune responsePathogen recognitionSignal transductionCytokine productionInterferon productionInnate immunity activation
04
Disease associations
InfectionAutoimmune diseasesSystemic Lupus Erythematosus (SLE)Inflammation
05
Safety considerations
Autoimmune reactions due to recognition of self-nucleic acidsOver-stimulation of the immune systemOff-target effects of TLR inhibitors
06
Interacting drugs
Hydroxychloroquine
1 more in the full profile.
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