Entity Detail — Knowledge Graph Node
This page aggregates everything SciDEX knows about MICROGLIA: its mechanistic relationships (Knowledge Graph edges), hypotheses targeting it, analyses mentioning it, and supporting scientific papers. The interactive graph below shows its immediate neighbors. All content is AI-synthesized from peer-reviewed literature.
Resident immune cells of the central nervous system. Microglia survey the brain parenchyma, clear debris, prune synapses, and respond to injury. In neurodegenerative diseases, chronic microglial activation drives neuroinflammation through complement cascade and cytokine release.
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| Cell Type | MICROGLIA |
| Also Known As | Microglial cells, Brain-resident macrophages |
| Definition | Resident immune cells of the central nervous system derived from yolk sac progenitors |
| Functions | Immune surveillance, Synaptic pruning, Phagocytosis, Cytokine production, Debris clearance |
| Key Markers | IBA1, CD11b, CX3CR1, P2RY12, TMEM119, TREM2 |
| States | Homeostatic, Disease-associated (DAM), Activated, Phagocytic, Senescent |
| Key Pathways | TREM2-DAP12 signaling, TLR4-NF-kB, CSF1R signaling, Complement cascade, cGAS-STING |
| Associated Diseases | Alzheimer's disease, Parkinson's disease, Multiple sclerosis, ALS, Nasu-Hakola disease |
| Discovery | First described by Pío del Río Hortega in 1919 |
| Linked Hypotheses | 338 hypotheses |
Knowledge base pages for this entity
graph TD
subgraph Therapeutic["Therapeutic"]
MICROGLIA["MICROGLIA"] -->|"expressed in"| TREM2["TREM2"]
TREM2_3["TREM2"] -->|"expressed in"| MICROGLIA["MICROGLIA"]
end
subgraph Pathology["Pathology"]
MICROGLIA["MICROGLIA"] -->|"associated with"| NEUROINFLAMMATION["NEUROINFLAMMATION"]
MICROGLIA["MICROGLIA"] -->|"associated with"| NEURON["NEURON"]
MICROGLIA["MICROGLIA"] -->|"associated with"| TNF["TNF"]
MICROGLIA["MICROGLIA"] -->|"associated with"| SNCA["SNCA"]
MICROGLIA["MICROGLIA"] -->|"associated with"| TAU["TAU"]
MICROGLIA["MICROGLIA"] -->|"associated with"| TREM2_1["TREM2"]
MICROGLIA["MICROGLIA"] -->|"associated with"| NEURODEGENERATION["NEURODEGENERATION"]
AMYLOID["AMYLOID"] -->|"associated with"| MICROGLIA["MICROGLIA"]
APOE["APOE"] -->|"associated with"| MICROGLIA["MICROGLIA"]
end
subgraph Signaling["Signaling"]
MICROGLIA["MICROGLIA"] -->|"activates"| TREM2_2["TREM2"]
INFLAMMATION["INFLAMMATION"] -->|"activates"| MICROGLIA["MICROGLIA"]
C1Q["C1Q"] -->|"activates"| MICROGLIA["MICROGLIA"]
TREM2_4["TREM2"] -->|"regulates"| MICROGLIA["MICROGLIA"]
end
style MICROGLIA fill:#006494,stroke:#4fc3f7,stroke-width:3px,color:#e0e0e0,font-weight:bold
style TREM2 fill:#006494,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style NEUROINFLAMMATION fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style NEURON fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style TNF fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style SNCA fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style TAU fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style TREM2_1 fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style TREM2_2 fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style NEURODEGENERATION fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style INFLAMMATION fill:#5d4400,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style TREM2_3 fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style C1Q fill:#006494,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style TREM2_4 fill:#006494,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style AMYLOID fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0
style APOE fill:#4a1a6b,stroke:#4fc3f7,stroke-width:1px,color:#e0e0e0| Target | Relation | Type | Str |
|---|---|---|---|
| MACROPHAGE | associated_with | cell_type | 1.00 |
| Neurodegeneration | associated_with | disease | 1.00 |
| DEPRESSION | associated_with | gene | 1.00 |
| NEURODEGENERATION | associated_with | gene | 1.00 |
| Alzheimer | activates | disease | 1.00 |
| Neuroinflammation | contributes_to | disease | 1.00 |
| Autophagy | activates | pathway | 1.00 |
| NEURODEGENERATION | activates | gene | 1.00 |
| Apoptosis | activates | pathway | 1.00 |
| Alzheimer | interacts_with | disease | 1.00 |
| Als | activates | disease | 1.00 |
| Neurodegeneration | activates | disease | 1.00 |
| Inflammation | contributes_to | disease | 1.00 |
| Alzheimer | implicated_in | disease | 1.00 |
| TREM2 | activates | gene | 1.00 |
| Amyotrophic Lateral Sclerosis | activates | disease | 1.00 |
| Aging | regulates | disease | 1.00 |
| Blood-Brain Barrier | therapeutic_target | pathway | 1.00 |
| Neurodegeneration | regulates | disease | 1.00 |
| Inflammation | associated_with | disease | 1.00 |
| Als | regulates | disease | 1.00 |
| Alzheimer | regulates | disease | 1.00 |
| Infection | activates | disease | 1.00 |
| Obesity | activates | disease | 1.00 |
| Oxidative Stress | activates | pathway | 1.00 |
| Alzheimer | inhibits | disease | 1.00 |
| Aging | therapeutic_target | disease | 1.00 |
| Alzheimer | causes | disease | 1.00 |
| Als | interacts_with | disease | 1.00 |
| Neuroinflammation | associated_with | disease | 1.00 |
| Inflammation | therapeutic_target | disease | 1.00 |
| Alzheimer | contributes_to | disease | 1.00 |
| TNF | activates | gene | 1.00 |
| Als | therapeutic_target | disease | 1.00 |
| ISCHEMIA | associated_with | disease | 1.00 |
| Autoimmune | activates | disease | 1.00 |
| Aging | activates | disease | 1.00 |
| Immune Response | regulates | pathway | 1.00 |
| Dementia | activates | disease | 1.00 |
| Stem Cell | activates | pathway | 1.00 |
| C3 | activates | gene | 1.00 |
| Immune Response | activates | pathway | 1.00 |
| Multiple Sclerosis | activates | disease | 1.00 |
| TRAUMATIC BRAIN INJURY | associated_with | disease | 1.00 |
| HIPPOCAMPUS | associated_with | brain_region | 1.00 |
| CORTEX | associated_with | brain_region | 1.00 |
| Neuroinflammation | interacts_with | disease | 1.00 |
| Inflammation | interacts_with | disease | 1.00 |
| TREM2 | expressed_in | protein | 1.00 |
| SUBSTANTIA NIGRA | associated_with | brain_region | 1.00 |
| Source | Relation | Type | Str |
|---|---|---|---|
| C1Q | activates | protein | 1.00 |
| NEURODEGENERATION | implicated_in | gene | 1.00 |
| STAT3 | activates | gene | 1.00 |
| NEURODEGENERATIVE DISEASES | therapeutic_target | gene | 1.00 |
| NEUROINFLAMMATION | activates | gene | 1.00 |
| AMYOTROPHIC LATERAL SCLEROSIS | activates | gene | 1.00 |
| MYELIN | activates | gene | 1.00 |
| AMYLOID | inhibits | gene | 1.00 |
| PROINFLAMMATORY CYTOKINES | activates | gene | 1.00 |
| TREM2 | activates | gene | 1.00 |
| TREM2 | regulates | protein | 1.00 |
| AMYLOID | activates | gene | 1.00 |
| PI3K | activates | gene | 1.00 |
| ds-f2c28aed24a7 | data_in | dataset | 1.00 |
| ASTROCYTES | inhibits | gene | 1.00 |
| ALZHEIMER | regulates | gene | 1.00 |
| PHAGOCYTOSIS | activates | gene | 1.00 |
| ALS | associated_with | gene | 1.00 |
| TREM2 | expressed_in | gene | 1.00 |
| ASTROCYTES | activates | gene | 1.00 |
| ALZHEIMER | associated_with | gene | 1.00 |
| APOE | associated_with | gene | 1.00 |
| APOPTOSIS | associated_with | gene | 1.00 |
| AUTOPHAGY | associated_with | gene | 1.00 |
| AMYLOID | associated_with | gene | 1.00 |
| MITOPHAGY | activates | gene | 1.00 |
| STROKE | activates | gene | 1.00 |
| ALZHEIMER'S DISEASE | regulates | gene | 1.00 |
| NEUROINFLAMMATION | associated_with | gene | 1.00 |
| INFLAMMATION | activates | phenotype | 1.00 |
| NEURON | activates | gene | 1.00 |
| ALZHEIMER'S DISEASE | activates | gene | 1.00 |
| ALZHEIMER | contributes_to | gene | 1.00 |
| PARKINSON'S DISEASE | activates | gene | 1.00 |
| OXIDATIVE STRESS | activates | gene | 1.00 |
| NEURODEGENERATIVE DISEASES | associated_with | gene | 1.00 |
| MITOCHONDRIAL DYSFUNCTION | activates | gene | 1.00 |
| ALZHEIMER'S DISEASE | contributes_to | gene | 1.00 |
| GENES | activates | gene | 1.00 |
| PARKINSON | activates | gene | 1.00 |
| ALZHEIMER | expressed_in | gene | 1.00 |
| NEURODEGENERATION | associated_with | gene | 1.00 |
| ALZHEIMER'S DISEASE | causes | gene | 1.00 |
| DEMENTIA | activates | disease | 1.00 |
| ALZHEIMER'S DISEASE | implicated_in | gene | 1.00 |
| ALZHEIMER | implicated_in | gene | 1.00 |
| TLR4 | activates | gene | 1.00 |
| TNF | activates | gene | 1.00 |
| ALZHEIMER'S DISEASE | associated_with | gene | 1.00 |
| NEUROINFLAMMATION | contributes_to | gene | 1.00 |
Hypotheses where this entity is a therapeutic target
| Hypothesis | Score | Disease | Analysis |
|---|---|---|---|
| No targeting hypotheses | |||
Scientific analyses that reference this entity
neuroinflammation | 2026-04-08 | 0 hypotheses
neurodegeneration | 2026-04-03 | 7 hypotheses Top: 0.682
neurodegeneration | 2026-04-03 | 18 hypotheses Top: 0.847
neurodegeneration | 2026-04-02 | 7 hypotheses Top: 0.720
Experimental studies targeting or related to this entity
| Experiment | Type | Disease | Score | Feasibility | Model | Status | Est. Cost |
|---|---|---|---|---|---|---|---|
| No experiments found | |||||||
Scientific publications cited in analyses involving this entity
| Title & PMID | Authors | Journal | Year | Citations |
|---|---|---|---|---|
| No papers found | ||||
Multi-agent debates referencing this entity
closed · Rounds: 4 · Score: 0.68 · 2026-04-22
closed · Rounds: 4 · Score: 0.93 · 2026-04-09
closed · Rounds: 4 · Score: 0.93 · 2026-04-03
closed · Rounds: 4 · Score: 0.90 · 2026-04-03