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Nod-like receptor family pyrin domain-containing protein 3 (NLRP3)
- Target
- NLRP3
- Molecular classification
- Pattern Recognition Receptor (PRR)
01
Overview
Nod-like receptor family pyrin domain-containing protein 3 (NLRP3), also known as cryopyrin, is a key intracellular sensor in the innate immune system. It functions as a pattern recognition receptor (PRR) that detects pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs). Upon activation, NLRP3 undergoes conformational changes leading to oligomerization, which recruits ASC and caspase-1 to form the inflammasome complex. Activated caspase-1 then processes pro-inflammatory cytokines IL-1β and IL-18 into their mature forms and cleaves gasdermin D to induce pyroptosis. Mutations or dysregulation in NLRP3 are associated with several autoinflammatory disorders, making it a therapeutic target for inflammatory diseases.
- Other names
- Cryopyrin
02
Mechanism of action
Pharmacological inhibition targeting various steps in NLRP3 activation or assembly.
03
Biological functions
Inflammasome FormationCaspase-1 ActivationIL-1β/IL-18 MaturationPyroptosis InductionInnate Immune Response
04
Disease associations
Cryopyrin-Associated Periodic Syndromes (CAPS)Familial Cold Autoinflammatory Syndrome (FCAS)Muckle-Wells Syndrome (MWS)Neonatal-Onset Multisystem Inflammatory Disease (NOMID)Inflammation
05
Safety considerations
Potential for broad immunosuppressionRisk of infection
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