| 2001 |
NLRP3 (CIAS1/cryopyrin) was identified as a novel gene encoding a protein with a pyrin domain, NACHT domain, and leucine-rich repeat (LRR) motif region; gain-of-function mutations cause familial cold autoinflammatory syndrome (FCAS) and Muckle-Wells syndrome (MWS), establishing its role in inflammatory regulation. |
Direct sequencing of genomic DNA from affected families; genetic mapping |
Nature genetics |
High |
11687797
|
| 2004 |
NLRP3 (NALP3/cryopyrin) assembles an inflammasome complex with ASC, the CARD-containing protein Cardinal, and caspase-1 (but not caspase-5), forming a platform with high pro-IL-1β-processing activity; gain-of-function Muckle-Wells mutations cause spontaneous IL-1β secretion from macrophages. |
Co-immunoprecipitation, reconstitution of inflammasome complex, macrophage assays from MWS patients |
Immunity |
High |
15030775
|
| 2006 |
NLRP3 (NALP3) inflammasome is activated by monosodium urate (MSU) and calcium pyrophosphate dihydrate (CPPD) crystals, leading to caspase-1-dependent IL-1β and IL-18 production; macrophages deficient in caspase-1, ASC, or NALP3 are defective in crystal-induced IL-1β activation, and NLRP3-deficient mice show impaired neutrophil influx in crystal-induced peritonitis. |
Genetic knockout (caspase-1, ASC, NALP3 KO mice), in vivo peritonitis model, cytokine assays |
Nature |
High |
16407889
|
| 2007 |
Activation of the NALP3 inflammasome requires low intracellular potassium concentration; inhibiting K+ efflux blocks NALP3 (but not IPAF) inflammasome activation, and in vitro NALP3 inflammasome assembly and caspase-1 recruitment occurs spontaneously at K+ concentrations below 90 mM. |
Pharmacological K+ efflux inhibition, in vitro reconstitution assay at defined K+ concentrations |
Cell death and differentiation |
High |
17599094
|
| 2008 |
Silica crystals and aluminum salts activate the NALP3 inflammasome via a mechanism requiring phagocytosis, leading to lysosomal damage and rupture; cathepsin B release from lysosomes into the cytoplasm is required for NALP3 activation. Sterile lysosomal damage alone suffices to activate NALP3. |
Genetic KO macrophages, pharmacological inhibition of cathepsin B and phagosomal acidification, lysosomal damage assays |
Nature immunology |
High |
18604214
|
| 2008 |
Asbestos and silica particles are sensed by the Nalp3 inflammasome; NADPH oxidase-generated reactive oxygen species upon particle phagocytosis trigger inflammasome activation and IL-1β secretion; Nalp3−/− mice show reduced inflammatory cell recruitment and cytokine production in an asbestos inhalation model. |
Nalp3 KO mice, in vivo inhalation model, ROS inhibition assays |
Science |
High |
18403674
|
| 2009 |
NF-κB-activating pattern recognition and cytokine receptors license NLRP3 inflammasome activation by inducing NLRP3 expression as a critical checkpoint; NF-κB activation is necessary but not sufficient for NLRP3 activation — a second stimulus (ATP or crystal-induced damage) is also required. |
Reporter assays, NLRP3 expression knockdown/overexpression, macrophage stimulation assays |
Journal of immunology |
High |
19570822
|
| 2010 |
Resting NLRP3 localizes to endoplasmic reticulum structures; upon inflammasome activation, both NLRP3 and ASC redistribute to the perinuclear space where they co-localize with ER and mitochondria clusters. Mitophagy/autophagy blockade leads to accumulation of damaged, ROS-generating mitochondria that activate the NLRP3 inflammasome; voltage-dependent anion channel inhibition suppresses both ROS generation and inflammasome activation. |
Confocal microscopy/live imaging, autophagy inhibition, VDAC inhibition, genetic KO macrophages |
Nature |
High |
21124315
|
| 2010 |
Cholesterol crystals activate the NLRP3 inflammasome in human macrophages via lysosomal destabilization and cathepsin B release; siRNA silencing of NLRP3 abolishes crystal-induced IL-1β secretion, establishing NLRP3 as the cholesterol crystal-sensing element. |
siRNA knockdown, cathepsin B inhibition, lysosomal permeability assays, IL-1β ELISA |
PloS one |
High |
20668705
|
| 2011 |
The NLRP3 inflammasome senses lipotoxicity-associated increases in intracellular ceramide to induce caspase-1 cleavage in macrophages and adipose tissue; Nlrp3 ablation in mice prevents obesity-induced inflammasome activation in fat depots and liver and enhances insulin signaling. |
Nlrp3 KO mice, ceramide treatment assays, adipose tissue caspase-1 and IL-18 measurements |
Nature medicine |
High |
21217695
|
| 2012 |
NLRP3 is activated in Alzheimer's disease; NLRP3-deficient (Nlrp3−/−) and Casp1−/− mice carrying familial AD mutations are largely protected from spatial memory loss, show reduced caspase-1 and IL-1β activation in brain, enhanced amyloid-β clearance, and a shift of microglia to M2 phenotype with decreased amyloid-β deposition. |
Nlrp3/Casp1 KO mouse models of AD, behavioral testing, immunohistochemistry, cytokine assays |
Nature |
High |
23254930
|
| 2012 |
BRCC3 (a deubiquitinating enzyme in the cytosolic BRISC complex) critically regulates NLRP3 activity by promoting its deubiquitination; NLRP3 is a substrate for BRCC3-containing BRISC complex, and its ubiquitination status controls inflammasome activation. |
Co-immunoprecipitation, pharmacological and molecular (siRNA/overexpression) approaches, ubiquitination assays |
Molecular cell |
High |
23246432
|
| 2012 |
TLR4/MyD88 signaling can rapidly and non-transcriptionally prime NLRP3 by stimulating its deubiquitination, dependent on mitochondrial ROS; ATP signaling also induces NLRP3 deubiquitination independently of ROS; pharmacological inhibition of NLRP3 deubiquitination blocks NLRP3 activation, demonstrating that deubiquitination is required for NLRP3 activation. |
Ubiquitination assays, ROS inhibition, pharmacological deubiquitination inhibition, macrophage stimulation assays |
Journal of biological chemistry |
High |
22948162
|
| 2012 |
PKR (double-stranded RNA-dependent protein kinase) physically interacts with NLRP3, NLRP1, NLRC4, and AIM2 and is required for inflammasome activation; PKR autophosphorylation in a cell-free system with recombinant NLRP3, ASC, and pro-caspase-1 reconstitutes inflammasome activity. |
Co-immunoprecipitation, PKR KO macrophages, cell-free reconstitution with recombinant proteins |
Nature |
High |
22801494
|
| 2013 |
Mitochondrial cardiolipin directly binds NLRP3 and is required for Nlrp3 inflammasome activation; interference with cardiolipin synthesis specifically inhibits Nlrp3 inflammasome activation independently of ROS, identifying cardiolipin as a convergence point for ROS-dependent and ROS-independent Nlrp3 activation pathways. |
Direct binding assay (cardiolipin-NLRP3 interaction), cardiolipin synthesis inhibition, linezolid as ROS-independent Nlrp3 agonist |
Immunity |
High |
23954133
|
| 2014 |
ASC forms filaments upon inflammasome activation; activated NLRP3 nucleates PYD filaments of ASC, which in turn cluster the CARD of ASC to nucleate CARD filaments of caspase-1, leading to proximity-induced caspase-1 activation. Cryo-EM structure of ASC(PYD) filament at near-atomic resolution provides a template for homo- and hetero-PYD/PYD associations. |
Cryo-EM structure determination, structure-guided mutagenesis, filament assembly assays |
Cell |
High |
24630722
|
| 2014 |
Aryl hydrocarbon receptor (AhR) negatively regulates NLRP3 expression by binding to xenobiotic response elements (XRE) in the NLRP3 promoter and inhibiting NLRP3 transcription; AhR activation suppresses caspase-1 activation and IL-1β secretion in peritoneal macrophages and alum-induced peritonitis in vivo. |
ChIP assay, siRNA knockdown, luciferase reporter assay, macrophage and in vivo peritonitis assays |
Nature communications |
High |
25141024
|
| 2015 |
MCC950, a potent small-molecule inhibitor, selectively inhibits NLRP3 but not AIM2, NLRC4, or NLRP1 inflammasomes at nanomolar concentrations, blocking canonical and noncanonical NLRP3 activation; MCC950 reduces IL-1β production in vivo and rescues neonatal lethality in a CAPS mouse model. |
Pharmacological inhibitor characterization, KO controls for specificity, in vivo EAE and CAPS models |
Nature medicine |
High |
25686105
|
| 2015 |
Dopamine inhibits NLRP3 inflammasome activation via dopamine D1 receptor (DRD1) signaling; DRD1 signaling increases cAMP, which binds to NLRP3 and promotes its ubiquitination and degradation via the E3 ubiquitin ligase MARCH7. |
Co-immunoprecipitation, cAMP binding assay, ubiquitination assays, DRD1 KO mice, in vivo neuroinflammation and peritonitis models |
Cell |
High |
25594175
|
| 2015 |
Small heterodimer partner (SHP) is a negative regulator of NLRP3 inflammasome activation; SHP interacts with NLRP3 at mitochondria, competitively inhibiting NLRP3 binding to ASC; SHP deficiency leads to accumulation of damaged mitochondria and sustained NLRP3-ASC interaction at the ER. |
Co-immunoprecipitation, overexpression competition assay, SHP KO macrophages, confocal microscopy, mouse models |
Nature communications |
High |
25655831
|
| 2016 |
NEK7, a mammalian NIMA-related kinase, is an essential NLRP3-binding protein that acts downstream of potassium efflux to regulate NLRP3 oligomerization and activation; NLRP3 associates with the catalytic domain of NEK7, but NEK7 kinase activity is dispensable; NEK7 deficiency abrogates caspase-1 activation and IL-1β release in response to NLRP3 (but not NLRC4 or AIM2) stimuli; NEK7 is required for CAPS-associated NLRP3 mutant activation. |
Co-immunoprecipitation, NEK7 KO mice (hematopoietic chimeras), mutational analysis, high-molecular-mass complex analysis |
Nature |
High |
26814970
|
| 2017 |
ARIH2 (E3 ubiquitin ligase) interacts with NLRP3 via its NACHT domain and ubiquitinates NLRP3 via K48- and K63-linked chains through its RING2 domain, negatively regulating NLRP3 inflammasome activation; CRISPR/Cas9 deletion of endogenous ARIH2 promotes NLRP3 inflammasome activation. |
Co-immunoprecipitation, ubiquitination assays with ARIH2 mutants, CRISPR/Cas9 KO, overexpression studies |
Journal of immunology |
High |
29021376
|
| 2019 |
MCC950 directly interacts with the Walker B motif within the NLRP3 NACHT domain, blocking ATP hydrolysis and inhibiting NLRP3 activation and inflammasome formation. |
Direct binding assay, ATPase activity assay, mutagenesis of Walker B motif |
Nature chemical biology |
High |
31086327
|
| 2019 |
Cryo-EM structure of inactive human NLRP3 in complex with NEK7 at 3.8 Å resolution reveals that the C-terminal lobe of NEK7 nestles against both the LRR and NACHT domains of NLRP3; modeling predicts NEK7 bridges adjacent NLRP3 subunits with bipartite interactions to mediate activation; interface mutations abolish NEK7- or NLRP3-rescue of inflammasome activation in KO cells. |
Cryo-EM structure determination, site-directed mutagenesis, KO cell rescue assays |
Nature |
High |
31189953
|
| 2019 |
Human NLRP3, but not mouse NLRP3, undergoes alternative splicing producing a major isoform lacking exon 5; the exon-5-deleted isoform lacks the interaction surface for NEK7 and therefore lacks inflammasome activity, revealing a stochastic regulatory role for alternative splicing of NLRP3 LRR domain. |
RT-PCR isoform characterization, NEK7 interaction assays with splice variants, functional caspase-1 assays |
Nature communications |
High |
31324763
|
| 2020 |
AKT associates with NLRP3 and phosphorylates it on serine 5 (S5), limiting NLRP3 oligomerization; S5 phosphorylation also stabilizes NLRP3 by reducing its ubiquitination on lysine 496, inhibiting proteasome-mediated degradation by the E3 ligase Trim31; dephosphorylation of S5 by PP2A allows NLRP3 activation. |
Co-immunoprecipitation, phospho-specific mutagenesis, ubiquitination assays, pharmacological AKT manipulation, in vivo LPS model |
Journal of immunology |
High |
32929041
|
| 2020 |
STING binds to NLRP3 upon HSV-1 infection and promotes NLRP3 localization to the endoplasmic reticulum, facilitating inflammasome formation; STING also attenuates K48- and K63-linked polyubiquitination of NLRP3, promoting inflammasome activation. |
Co-immunoprecipitation, confocal microscopy (ER co-localization), ubiquitination assays, siRNA knockdown, primary cells and mouse models |
PLoS pathogens |
High |
32187211
|
| 2020 |
RACK1 interacts with NLRP3 and NEK7 (but not ASC) in macrophages and promotes the active conformation of NLRP3 induced by activating stimuli, facilitating subsequent inflammasome assembly; RACK1 suppression specifically abrogates caspase-1 activation in response to NLRP3 (but not NLRC4 or AIM2) stimuli, independently of RACK1's ribosomal binding activity. |
Co-immunoprecipitation, siRNA knockdown, conformational assays, NLRC4/AIM2 selectivity controls |
Cell reports |
High |
33207200
|
| 2020 |
UAF1/USP1 deubiquitinase complex selectively removes K48-linked polyubiquitination from NLRP3, suppressing its degradation and increasing cellular NLRP3 levels required for inflammasome assembly; UAF1/USP12 and UAF1/USP46 complexes promote NF-κB activation by deubiquitinating p65, enhancing NLRP3 and pro-IL-1β transcription. |
Co-immunoprecipitation, ubiquitination chain-type assays, Uaf1 KO macrophages, in vivo assays |
Nature communications |
High |
33247121
|
| 2021 |
Full-length mouse NLRP3 forms a 12- to 16-mer double-ring cage held together by LRR-LRR interactions, with pyrin domains shielded within the assembly to prevent premature activation; this NLRP3 form is predominantly membrane-localized. Trans-Golgi network dispersion into vesicles (an early event for many NLRP3-activating stimuli) requires the double-ring cages; double-ring-defective NLRP3 mutants abolish inflammasome punctum formation, caspase-1 processing, and cell death. |
Cryo-EM structure of endogenous full-length NLRP3, structure-guided mutagenesis, membrane fractionation, live-cell imaging of TGN dispersion |
Cell |
High |
34861190
|
| 2021 |
TRIM28 (E3 SUMO ligase) binds NLRP3 and promotes SUMO1, SUMO2, and SUMO3 modification of NLRP3, thereby inhibiting NLRP3 ubiquitination and proteasomal degradation and stabilizing NLRP3 protein; Trim28 deficiency attenuates NLRP3 inflammasome activation in vitro and in vivo. |
Co-immunoprecipitation, SUMOylation assays, ubiquitination assays, Trim28 KO macrophages and mice |
Nature communications |
High |
34373456
|
| 2021 |
YAP physically interacts with NLRP3 and maintains NLRP3 stability by blocking the association between NLRP3 and the E3 ligase β-TrCP1; β-TrCP1 promotes proteasomal degradation of NLRP3 via K27-linked ubiquitination at Lys380; YAP deficiency in myeloid cells attenuates LPS-induced systemic inflammation and MSU-induced peritonitis. |
Co-immunoprecipitation, ubiquitination assays (chain-type specific), YAP conditional KO mice, in vivo peritonitis model |
Nature communications |
High |
33976226
|
| 2021 |
USP5 promotes autophagic degradation of NLRP3, attenuating NLRP3 inflammasome activation; USP5 interacts with NLRP3 and promotes its K63-linked deubiquitination, facilitating MARCHF7/MARCH7-mediated autophagy-dependent NLRP3 degradation. |
Co-immunoprecipitation, ubiquitination assays, autophagy flux assays (3-MA, BafA1, CQ), KD experiments |
Autophagy |
Medium |
34486483
|
| 2021 |
Pharmacological inhibition of BRCC3 (JAMM domain metalloprotease) by thiolutin (THL) blocks NLRP3 inflammasome activation by preventing BRISC-mediated NLRP3 deubiquitination; THL potently inhibits canonical, noncanonical, alternative, and transcription-independent NLRP3 activation pathways at nanomolar concentrations and is effective in multiple mouse inflammatory disease models. |
Pharmacological inhibitor (THL), BRISC deubiquitination assays, multiple KO controls, in vivo mouse models |
Science immunology |
High |
33931568
|
| 2019 |
SUMO1 catalyzes SUMOylation of NLRP3 at residue Lys204 (via UBC9), facilitating ASC oligomerization and inflammasome activation; SENP3 deSUMOylates NLRP3, attenuating ASC recruitment and speck formation and IL-1β cleavage. |
Co-immunoprecipitation, site-directed mutagenesis (Lys204), SUMOylation assays, SENP3 overexpression/knockdown |
FASEB journal |
High |
31914638
|
| 2022 |
The caspase-11–NLRP3 interaction (before caspase-11 activation) is required for noncanonical NLRP3 inflammasome activation; concurrent detection of bacterial RNA by NLRP3 and LPS binding by pro-caspase-11 mediates this interaction, nucleating a scaffold for their interdependent activation. |
Co-immunoprecipitation, genetic KO macrophages (Casp11, Nlrp3), mechanistic reconstitution with bacterial mRNA/LPS |
Nature immunology |
High |
35487985
|
| 2022 |
NLRP3 Cys598 in the NACHT domain is the direct covalent binding site for costunolide (COS), which alters NLRP3 ATPase activity and inhibits inflammasome assembly; the α-methylene-γ-butyrolactone motif in COS is the active group for NLRP3 inhibition. |
Covalent binding site identification (mass spectrometry/mutagenesis), ATPase activity assay, macrophage and disease model assays |
Acta pharmaceutica Sinica B |
High |
36873170
|
| 2022 |
Ubiquitination of NLRP3 by gp78 (membrane-bound E3 ubiquitin ligase) inhibits NLRP3 inflammasome activation by suppressing NLRP3 oligomerization and subcellular translocation; Insig-1 (ER membrane protein) is required for the gp78-NLRP3 interaction and gp78-mediated NLRP3 ubiquitination; gp78 or Insig-1 myeloid-specific deficiency exacerbates NLRP3-dependent inflammation in vivo. |
Co-immunoprecipitation, ubiquitination assays, myeloid-specific KO mice, in vivo inflammation models |
Cell death and differentiation |
High |
35110683
|
| 2022 |
Tau protein acts as an acetyltransferase that directly acetylates NLRP3 at K21, K22, and K24 in the PYD domain, inducing inflammasome activation in microglia; phosphorylated Tau species promote NLRP3 acetylation-dependent inflammasome activation; blocking the Tau-NLRP3 interaction with a peptide inhibits NLRP3 acetylation, microgliosis, and cognitive impairment in mice. |
In vitro acetylation assay, Co-IP, mass spectrometry (acetylation sites), mutant Tau constructs, AAV mouse model, behavioral testing |
Clinical and translational medicine |
High |
38488468
|
| 2022 |
Deletion of the NLRP3 LRR domain inhibits NLRP3 self-association, oligomerization, and interaction with NEK7, and diminishes inflammasome activation in macrophages; this was shown using endogenous NLRP3 mutant knock-in mice and reconstitution of NLRP3-deficient macrophages. |
NLRP3 LRR deletion knock-in mice, NLRP3-deficient macrophage reconstitution, oligomerization assays, NEK7 Co-IP |
Journal of biological chemistry |
High |
36403854
|
| 2022 |
NLRP3 directly binds non-oxidized and oxidized mitochondrial DNA (Ox-mtDNA) with differential affinity (IC50 ~4 nM for non-oxidized vs ~247 nM for Ox-mtDNA); the NLRP3 pyrin domain mediates DNA binding and prefers Ox-mtDNA; NOMIDFCAS gain-of-function NLRP3 mutant has higher affinity for Ox-mtDNA. |
Direct binding assay (IC50 determination), pyrin domain deletion and isolation binding assays, monoclonal antibody blocking assay, structural modeling |
Communications biology |
Medium |
37253813
|
| 2023 |
ZDHHC5 palmitoylates NLRP3 at the LRR domain, promoting NLRP3 oligomerization, NLRP3-NEK7 interaction, and formation of large ASC aggregates leading to caspase-1 activation; ABHD17A depalmitoylates NLRP3; Zdhhc5−/− mice show defective NLRP3 inflammasome activation in vivo; a human heritable disease-associated NLRP3 mutation is associated with defective ABHD17A binding and hyper-palmitoylation. |
Palmitoylation assays (acyl-RAC), ZDHHC5 KO cells and Zdhhc5−/− mice, Co-IP (NLRP3-NEK7), ASC speck formation assays, disease mutation analysis |
Molecular cell |
High |
38092000
|
| 2024 |
ZDHHC7 palmitoylates NLRP3 at Cys126, which is critical for NLRP3-mediated inflammasome activation; Cys126 palmitoylation promotes resting NLRP3 localization on the trans-Golgi network (TGN) and activated NLRP3 on dispersed TGN, indispensable for ASC recruitment and oligomerization; ZDHHC12 has an opposing termination effect; ZDHHC7 KO diminishes NLRP3 activation in vivo. |
Palmitoylation assays, ZDHHC7 KO macrophages and mice, Cys126 mutagenesis, TGN localization by live-cell imaging/fractionation, ASC oligomerization assays |
Cell reports |
High |
38583156
|
| 2008 |
Initial characterization of the human NLRP3 promoter identified two transcriptional start sites, three 5'-UTR splice forms, potential promoter regions, and six new DNA promoter variants; one variant unique to a mutation-negative cryopyrinopathy patient increases in vitro gene expression. |
5'-RACE, promoter deletion/reporter assays, sequencing of patient DNA |
Genes and immunity |
Medium |
18719602
|
| 2016 |
TIFA regulates both priming (signal 1) and activation (signal 2) of NLRP3 inflammasome in endothelial cells; TIFA Thr9 phosphorylation by AKT drives TIFA oligomerization, which facilitates higher-order NLRP3 inflammasome assembly via TIFA-caspase-1 interaction; sterol regulatory element-binding protein 2 transactivates TIFA to induce NF-κB-dependent NLRP3 transcription. |
Co-immunoprecipitation (TIFA-caspase-1), mutagenesis (Thr9), ChIP, siRNA knockdown, atheroprone flow model |
PNAS |
Medium |
27965388
|
| 2020 |
Activated NLRP3 inflammasome (ASC pyroptosome) universally localizes within the cytoplasm rather than with specific organelles under ATP, nigericin, or MSU stimulation in mouse peritoneal macrophages; endogenous ASC co-localizes with NLRP3 and caspase-1 in cytoplasmic specks but not with mitochondria, ER, Golgi, or other organelles screened. |
Confocal microscopy of endogenous proteins, co-localization with 8 organelle markers under multiple stimuli |
Protein & cell |
Medium |
23609011
|
| 2020 |
β-catenin physically interacts with NLRP3 and promotes the association between NLRP3 and ASC; siRNA suppression of β-catenin or pharmacological inhibition impairs NLRP3 inflammasome activation and attenuates LPS-induced systemic inflammation in vivo. |
Co-immunoprecipitation, siRNA knockdown, β-catenin inhibitor, in vivo LPS model |
Molecular immunology |
Medium |
32244067
|
| 2021 |
USP22 promotes NLRP3 degradation and inhibits NLRP3 inflammasome activation via promotion of ATG5-mediated macroautophagy; USP22 stabilizes ATG5 by decreasing K27- and K48-linked ubiquitination of ATG5 at Lys118, thereby indirectly promoting autophagic NLRP3 degradation. |
Co-immunoprecipitation, ubiquitination assays, autophagy flux assays, USP22 KD mice, in vivo peritonitis/inflammation models |
Autophagy |
Medium |
35900990
|
| 2021 |
TRIM31 interacts with NLRP3 in retinal pigment epithelial cells and promotes NLRP3 ubiquitination, inhibiting NLRP3 inflammasome activation and pyroptosis. |
Co-immunoprecipitation, ubiquitination assay, TRIM31 overexpression/knockdown, inflammasome activation assays |
Cell biology international |
Medium |
32716108
|
| 2021 |
Licochalcone B (LicoB) directly binds NEK7 and inhibits the NLRP3-NEK7 interaction, thereby suppressing NLRP3 inflammasome activation specifically (not AIM2 or NLRC4); LicoB is protective in mouse models of NLRP3-driven diseases. |
Direct binding assay (LicoB-NEK7), Co-IP (NLRP3-NEK7 disruption), selectivity assays, mouse disease models |
EMBO reports |
High |
34882936
|