NEK7 Gene

NEK7 Gene

Overview

NEK7 Gene

Overview

NEK7 (NIMA-related kinase 7) is a serine/threonine kinase belonging to the NEK (Never in Mitosis A-related kinase) family. NEK7 has emerged as a critical mediator of [NLRP3](/genes/nlrp3) inflammasome activation, positioning it at the intersection of innate immunity and neuroinflammation. In the central nervous system, NEK7-dependent NLRP3 activation in [microglia](/cell-types/microglia) drives the release of pro-inflammatory cytokines [IL-1beta](/genes/il1b) and [IL-18](/genes/il18), contributing to neuronal damage in [Alzheimer's disease](/diseases/alzheimers-disease), [Parkinson's disease](/diseases/parkinsons-disease), and other neurodegenerative conditions.

<div class="infobox infobox-gene"> [@shi2016]
<div class="infobox-header">NEK7</div> [@sharif2019]
<table> [@heneka2013]
<tr><td class="infobox-label">Full Name</td><td>NIMA-related kinase 7</td></tr> [@gordon2018]
<tr><td class="infobox-label">Gene Symbol</td><td>NEK7</td></tr> [@ising2019]
<tr><td class="infobox-label">Chromosomal Location</td><td>1q31.3</td></tr> [@xu2021]
<tr><td class="infobox-label">NCBI Gene ID</td><td>[140609](https://www.ncbi.nlm.nih.gov/gene/140609)</td></tr> [@schmidburgk2016]
<tr><td class="infobox-label">Ensembl ID</td><td>[ENSG00000151414](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000151414)</td></tr>
<tr><td class="infobox-label">UniProt ID</td><td>[Q8TDX2](https://www.uniprot.org/uniprot/Q8TDX2)</td></tr>
<tr><td class="infobox-label">Protein</td><td>[NEK7 Protein](/proteins/nek7-protein)</td></tr>
<tr><td class="infobox-label">Associated Diseases</td><td>[Alzheimer's disease](/diseases/alzheimers-disease), [Parkinson's disease](/diseases/parkinsons-disease), [ALS](/diseases/amyotrophic-lateral-sclerosis), [Multiple Sclerosis](/diseases/multiple-sclerosis)</td></tr>
</table>
</div>

Function

NEK7 is a 34 kDa serine/threonine kinase that plays dual roles in cell biology:

Mitotic Functions

NLRP3 Inflammasome Activation

Key mechanistic details include:

• NEK7 acts downstream of potassium efflux, a common signal triggered by diverse NLRP3 stimuli (ATP, nigericin, particulate matter, mitochondrial reactive oxygen species)
• The NEK7-NLRP3 interaction is cell cycle-dependent: during interphase NEK7 is available for NLRP3 binding, but during mitosis it is sequestered for spindle functions — explaining why inflammasome activation is suppressed in dividing cells
• NEK7 kinase activity is dispensable for NLRP3 activation; the interaction is structural rather than catalytic
• Cryo-EM structures reveal that NEK7 bridges adjacent NLRP3 protomers in the inflammasome disc, facilitating oligomerization

Other Immune Functions

Disease Associations

Alzheimer's Disease

• Aβ phagocytosis causes lysosomal damage and potassium efflux, triggering NEK7-NLRP3 complex formation
• NEK7-dependent IL-1β release promotes [tau](/proteins/tau) hyperphosphorylation through activation of kinases including [CDK5](/genes/cdk5) and [GSK3β](/genes/gsk3b)
• Genetic deletion of Nek7 in mouse microglia reduces Aβ-induced inflammasome activation and attenuates cognitive decline in AD mouse models
• NEK7 expression is elevated in postmortem AD brain tissue, particularly in plaque-associated microglia

Parkinson's Disease

• Aggregated [α-synuclein](/proteins/alpha-synuclein) fibrils released from degenerating [dopaminergic neurons](/cell-types/dopaminergic-neurons)
• Mitochondrial dysfunction-derived ROS and oxidized mitochondrial DNA
• [LRRK2](/genes/lrrk2) gain-of-function mutations that enhance NLRP3 priming
• NEK7 knockdown in BV2 microglia reduces α-synuclein-induced IL-1β secretion by approximately 80%

Amyotrophic Lateral Sclerosis

Multiple Sclerosis

Expression

NEK7 is ubiquitously expressed but shows notable enrichment in:

• Microglia: Highest CNS expression, consistent with inflammasome function
• [Astrocytes](/entities/astrocytes): Moderate expression; [astrocytic](/cell-types/astrocytes) NEK7 may contribute to A1 reactive astrocyte polarization
• [Neurons](/entities/neurons): Low expression; neuronal NEK7 primarily functions in cell cycle-related processes during development
• Peripheral immune cells: High expression in monocytes and macrophages

Therapeutic Targeting

NEK7 represents an attractive therapeutic target for neuroinflammatory diseases:

• Small molecule inhibitors: Disrupting the NEK7-NLRP3 protein-protein interaction could selectively block inflammasome activation without affecting other innate immune pathways
• Antisense oligonucleotides: NEK7-targeting ASOs reduce inflammasome activation in preclinical models
• Downstream targets: [MCC950](/therapeutics/mcc950) (NLRP3 inhibitor) blocks the pathway downstream of NEK7 and has shown efficacy in AD and PD mouse models
• Combination approaches: NEK7 inhibition combined with anti-amyloid or anti-[tau](/proteins/tau) therapies may provide synergistic neuroprotection

See Also

• [NLRP3](/genes/nlrp3) — inflammasome sensor protein
• [PYCARD (ASC)](/genes/pycard) — inflammasome adaptor protein
• [Caspase-1](/genes/casp1) — inflammasome effector protease
• [IL-1β](/genes/il1b) — pro-inflammatory cytokine product
• [Neuroinflammation Pathway](/mechanisms/neuroinflammation-pathway)

External Links

• [NCBI Gene: NEK7](https://www.ncbi.nlm.nih.gov/gene/140609)
• [UniProt: Q8TDX2](https://www.uniprot.org/uniprot/Q8TDX2)
• [GeneCards: NEK7](https://www.genecards.org/cgi-bin/carddisp.pl?gene=NEK7)
• [OMIM: NEK7](https://www.omim.org/entry/606848)
• [Allen Brain Atlas: NEK7](https://human.brain-map.org/microarray/search/show?search_term=NEK7)

References

Pathway Diagram

The following diagram shows the key molecular relationships involving NEK7 Gene discovered through SciDEX knowledge graph analysis: