GO:0072559 NLRP3 inflammasome complex: Components, Assembly and Research Methods, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0072559 describes the NLRP3 inflammasome complex, a cytosolic multiprotein platform that activates caspase-1 and drives IL-1beta/IL-18 maturation.
• NLRP3 activation requires a two-step priming and assembly process, often triggered by K+ efflux, lysosomal damage, or mitochondrial signals.
• NEK7 is a critical licensing factor that bridges NLRP3 protomers during inflammasome assembly.
• Dysregulated NLRP3 inflammasome activity is implicated in atherosclerosis, metabolic disorders, and inflammatory diseases.
• Autophagy and mitophagy tightly regulate NLRP3 inflammasome activity, preventing excessive inflammation.
• CRISPR knockout, knock-in, and overexpression models are essential for dissecting NLRP3 inflammasome gene function.
Description
The NLRP3 inflammasome complex (GO:0072559) is a cytosolic innate immune signaling platform that assembles in response to diverse danger signals, leading to caspase-1 activation and the release of pro-inflammatory cytokines IL-1beta and IL-18. This complex is central to inflammation-related diseases, including atherosclerosis, type 2 diabetes, and neurodegenerative conditions. Understanding its regulation is critical for developing targeted therapies. Researchers study NLRP3 inflammasome complex assembly, regulation, and function using genetic and pharmacological tools, with CRISPR-based models providing causal insights.
NLRP3 inflammasome complex At A Glance
| GO ID | GO:0072559 |
|---|---|
| GO term | NLRP3 inflammasome complex |
| Ontology | biological_process |
| Synonym | None |
| Major function | Activates caspase-1 and promotes IL-1beta/IL-18 maturation |
| Cellular location | Cytosol |
| Key components | NLRP3, ASC, caspase-1, NEK7 |
| Regulation | Priming via NF-kB, autophagy, mitophagy |
What Is GO:0072559?
The NLRP3 inflammasome complex is a multiprotein oligomer composed of the sensor NLRP3, the adaptor ASC, and the effector caspase-1. It forms in the cytoplasm upon detection of pathogen-associated or damage-associated molecular patterns, leading to caspase-1 activation and inflammatory cytokine processing.
Why Is NLRP3 inflammasome complex Important in Cell Biology?
The NLRP3 inflammasome complex is a key driver of sterile inflammation and host defense, and its dysregulation contributes to a wide range of inflammatory diseases, making it a major therapeutic target.
• Central to IL-1beta-mediated inflammation
• Implicated in atherosclerosis and cardiovascular disease
• Linked to metabolic disorders such as type 2 diabetes
• Involved in neurodegenerative diseases
• Regulated by autophagy and mitophagy
• Target for small-molecule inhibitors
• Requires NEK7 for activation
• Modulated by cholesterol biosynthesis via SCAP-SREBP2
What Happens During NLRP3 inflammasome complex?
Priming
In simple terms: The cell gets ready by increasing NLRP3 levels.
Priming involves NF-kB-mediated upregulation of NLRP3 and pro-IL-1beta in response to TLR ligands or cytokines.
Activation and Assembly
In simple terms: NLRP3 detects danger and builds a platform.
Activation triggers NLRP3 oligomerization, ASC speck formation, and caspase-1 recruitment, often via K+ efflux, lysosomal rupture, or mitochondrial ROS. NEK7 licenses NLRP3 assembly.
Caspase-1 Activation and Cytokine Release
In simple terms: The platform activates caspase-1 to cut cytokines.
Active caspase-1 cleaves pro-IL-1beta and pro-IL-18 into mature cytokines and induces pyroptosis via gasdermin D.
Regulation by Autophagy
In simple terms: Autophagy puts the brakes on the inflammasome.
Autophagy and mitophagy remove damaged mitochondria and inflammasome components, limiting NLRP3 activation.
Key Genes Involved in GO:0072559 NLRP3 inflammasome complex
Key genes and proteins involved in NLRP3 inflammasome complex function and regulation.
| Gene | Major Role | Research Relevance |
|---|---|---|
| NLRP3 | Sensor and core component | Target for KO and point mutation studies |
| PYCARD (ASC) | Adaptor linking NLRP3 to caspase-1 | Essential for speck formation |
| CASP1 | Effector protease | Mediates cytokine maturation |
| NEK7 | Licensing factor for NLRP3 assembly | Required for activation |
| IL1B | Pro-inflammatory cytokine | Readout of inflammasome activity |
| IL18 | Pro-inflammatory cytokine | Readout of inflammasome activity |
| GSDMD | Pyroptosis executor | Downstream of caspase-1 |
| SCAP | Cholesterol homeostasis regulator | Integrates cholesterol signaling |
| SREBP2 | Transcription factor | Modulates NLRP3 activation |
| MAP1LC3B | Autophagy marker | Regulates inflammasome degradation |
| SQSTM1 | Autophagy receptor | Targets inflammasome components |
| PINK1 | Mitophagy regulator | Limits NLRP3 activation |
| PRKN | Mitophagy regulator | Limits NLRP3 activation |
| NFKB1 | Priming transcription factor | Induces NLRP3 expression |
| TXNIP | Redox regulator | Links oxidative stress to NLRP3 |
| CARD8 | Inflammasome sensor | Alternative inflammasome |
| AIM2 | Inflammasome sensor | Distinct from NLRP3 |
How Is NLRP3 inflammasome complex Regulated?
NLRP3 inflammasome complex activity is regulated at multiple levels, including transcriptional priming via NF-kB, post-translational modifications, and autophagic clearance. Cholesterol biosynthesis through SCAP-SREBP2 also modulates NLRP3 activation.
NLRP3 inflammasome complex and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| NLRP3 | Atherosclerosis | NLRP3 KO mouse |
| IL1B | Autoinflammatory syndromes | IL1B knock-in |
| CASP1 | Inflammatory bowel disease | CASP1 KO |
| NEK7 | Inflammatory diseases | NEK7 KO |
| SCAP | Metabolic disorders | SCAP overexpression |
Atherosclerosis
NLRP3 inflammasome activation contributes to plaque instability and cardiovascular events.
Metabolic Disorders
Dysregulated NLRP3 activity is linked to insulin resistance and type 2 diabetes.
Neurodegeneration
Chronic NLRP3 activation promotes neuroinflammation in Alzheimer's and Parkinson's diseases.
From NLRP3 inflammasome complex-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does NLRP3 drive disease? | NLRP3 knockout |
| Does a point mutation affect assembly? | NLRP3 point mutation knock-in |
| Does NEK7 license activation? | NEK7 knockout |
| Does autophagy regulate inflammasome? | ATG5 knockout |
| Does cholesterol signaling modulate NLRP3? | SCAP overexpression |
| Can we track inflammasome assembly? | ASC-GFP knock-in |
How to Study the NLRP3 inflammasome complex Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Western blot | Caspase-1 cleavage | Inflammasome activation |
| ELISA | IL-1beta release | Cytokine maturation |
| ASC speck imaging | Inflammasome assembly | Live-cell microscopy |
| CRISPR KO | Gene function | Causal studies |
| CRISPR knock-in | Protein localization | Tagged reporters |
| RNA-seq | Transcriptional priming | NF-kB target genes |
| Proteomics | Inflammasome interactome | Component discovery |
CRISPR Knockout
Knockout of NLRP3, PYCARD, or CASP1 abolishes inflammasome function, enabling causal studies.
CRISPR Knock-in
Tagged knock-in of ASC or NLRP3 allows live-cell imaging of assembly.
Overexpression
Overexpression of NLRP3 or NEK7 enhances inflammasome activation for gain-of-function studies.
Library Screening
Genome-wide CRISPR screens identify regulators of NLRP3 inflammasome activity.
How CRISPR Can Be Used to Study GO:0072559 NLRP3 inflammasome complex
Knockout
CRISPR knockout of NLRP3, PYCARD, or CASP1 provides definitive loss-of-function models to study inflammasome-dependent phenotypes.
Point Mutation
Point mutations in NLRP3 can mimic disease-associated variants or disrupt NEK7 binding, revealing structural requirements.
Knock-in
Knock-in of fluorescent tags (e.g., ASC-GFP) enables real-time visualization of inflammasome assembly.
Overexpression
Overexpression of NLRP3 or NEK7 sensitizes cells to activation, useful for gain-of-function screens.
How EDITGENE Supports NLRP3 inflammasome complex Research
Researchers studying NLRP3 inflammasome complex-related genes often need to determine whether a candidate gene is causally involved in inflammasome activation, cytokine release, or disease progression. EDITGENE provides CRISPR-based tools to generate precisely engineered cell models for such investigations.
Contact EDITGENE today to design your custom CRISPR model for NLRP3 inflammasome complex research.
Related Products
| Product name | Cat.No. | Species | Gene ID | |
|---|---|---|---|---|
| NLRP3 Knockout MARC145 Cell Line | EDJ-KQ78172 | African green monkey | 114548 | Details Get a Quote |
| Nlrp3 Knockout BV-2 Cell Line | EDC90056 | Mouse | 216799 | Details Get a Quote |
| CASP1 Knockout HEK293 Cell Line | EDJ-KQ1456 | Human | 834 | Details Get a Quote |
| PYCARD Knockout HEK293 Cell Line | EDJ-KQ2182 | Human | 29108 | Details Get a Quote |
| NLRP1 Knockout HEK293 Cell Line | EDJ-KQ7700 | Human | 22861 | Details Get a Quote |
| CARD8 Knockout HEK293 Cell Line | EDJ-KQ7727 | Human | 22900 | Details Get a Quote |
| GSDMD Knockout HEK293 Cell Line | EDJ-KQ12933 | Human | 79792 | Details Get a Quote |
| NLRP3 Knockout HEK293 Cell Line | EDJ-KQ17888 | Human | 114548 | Details Get a Quote |
| NLRP1 Knockout HCT 116 Cell Line | EDJ-KQ33084 | Human | 22861 | Details Get a Quote |
| NLRP1 Knockout HeLa Cell Line | EDJ-KQ33085 | Human | 22861 | Details Get a Quote |
| CARD8 Knockout A-549 Cell Line | EDJ-KQ33140 | Human | 22900 | Details Get a Quote |
| CARD8 Knockout HeLa Cell Line | EDJ-KQ33142 | Human | 22900 | Details Get a Quote |
| CASP1 Knockout HeLa Cell Line | EDJ-KQ22323 | Human | 834 | Details Get a Quote |
| PYCARD Knockout A-549 Cell Line | EDJ-KQ22401 | Human | 29108 | Details Get a Quote |
| PYCARD Knockout HCT 116 Cell Line | EDJ-KQ22402 | Human | 29108 | Details Get a Quote |
Displaying Records 1 To 15 Of 29 Records
Frequently Asked Questions About NLRP3 inflammasome complex
What is the NLRP3 inflammasome complex?
It is a cytosolic multiprotein platform that activates caspase-1 and drives IL-1beta/IL-18 maturation.
What genes are involved in NLRP3 inflammasome complex?
Key genes include NLRP3, PYCARD, CASP1, NEK7, IL1B, and GSDMD.
What is the GO ID for NLRP3 inflammasome complex?
GO:0072559.
How is NLRP3 inflammasome activated?
Via priming and assembly triggered by K+ efflux, lysosomal damage, or mitochondrial signals.
What diseases are linked to NLRP3 inflammasome?
Atherosclerosis, metabolic disorders, and neurodegeneration.
What is the role of NEK7 in NLRP3 inflammasome?
NEK7 licenses NLRP3 assembly and is required for activation.
How does autophagy regulate NLRP3 inflammasome?
Autophagy and mitophagy remove inflammasome components and damaged mitochondria, limiting activation.
What CRISPR models are used to study NLRP3 inflammasome?
Knockout, knock-in, point mutation, and overexpression models.
What is the role of SCAP-SREBP2 in NLRP3 inflammasome?
It integrates cholesterol biosynthetic signaling with NLRP3 activation.
How can I study NLRP3 inflammasome assembly?
Using ASC-GFP knock-in and live-cell imaging.
Conclusion
The NLRP3 inflammasome complex (GO:0072559) is a central mediator of inflammation and a promising therapeutic target. Understanding its assembly, regulation, and disease roles requires robust genetic models. EDITGENE offers comprehensive CRISPR services to accelerate NLRP3 inflammasome research.
References
- 1. Jo EK et al.. 2016. Molecular mechanisms regulating NLRP3 inflammasome activation.. Cell Mol Immunol 13(2):148-59 PMID: 26549800
- 2. Chen Y et al.. 2023. The NLRP3 inflammasome: contributions to inflammation-related diseases.. Cell Mol Biol Lett 28(1):51 PMID: 37370025
- 3. Cabral JE et al.. 2025. Targeting the NLRP3 inflammasome for inflammatory disease therapy.. Trends Pharmacol Sci 46(6):503-519 PMID: 40374417
- 4. He Y et al.. 2016. Mechanism and Regulation of NLRP3 Inflammasome Activation.. Trends Biochem Sci 41(12):1012-1021 PMID: 27669650
- 5. Gupta S et al.. 2025. Regulation of the NLRP3 inflammasome by autophagy and mitophagy.. Immunol Rev 329(1):e13410 PMID: 39417249
- 6. Grebe A et al.. 2018. NLRP3 Inflammasome and the IL-1 Pathway in Atherosclerosis.. Circ Res 122(12):1722-1740 PMID: 29880500
- 7. Sharif H et al.. 2019. Structural mechanism for NEK7-licensed activation of NLRP3 inflammasome.. Nature 570(7761):338-343 PMID: 31189953
- 8. Guo C et al.. 2018. Cholesterol Homeostatic Regulator SCAP-SREBP2 Integrates NLRP3 Inflammasome Activation and Cholesterol Biosynthetic Signaling in Macrophages.. Immunity 49(5):842-856.e7 PMID: 30366764
