concept

SYNAPTIC PRUNING

Entity Detail — Knowledge Graph Node

Understanding Entity Pages

This page aggregates everything SciDEX knows about SYNAPTIC PRUNING: 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.

341Connections

13Hypotheses

23Analyses

50Outgoing

50Incoming

11Experiments

20Debates

Summary

SYNAPTIC PRUNING is a concept in neurodegeneration research. Key relationships include: activates, regulates, implicated in. Associated with ALS, Aging, Als. Connected to 140 entities in the SciDEX knowledge graph.

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💡 Concept Info

Name	SYNAPTIC PRUNING
Key Genes/Proteins	AGING, ALZHEIMER, ALZHEIMER'S DISEASE, AMYLOID, AMYOTROPHIC LATERAL SCLEROSIS, AND
Related Diseases	aging, Aging, Als, ALS, Alzheimer
Related Pathways	Amyloid

Pathway Diagram

graph TD
    SYNAPTIC_PRUNING["SYNAPTIC PRUNING"]
    SYNAPTIC_PRUNING -->|"activates"| neurodegeneration["neurodegeneration"]
    SYNAPTIC_PRUNING -->|"activates"| Alzheimer["Alzheimer"]
    SYNAPTIC_PRUNING -->|"activates"| Neurodegeneration["Neurodegeneration"]
    SYNAPTIC_PRUNING -->|"activates"| Als["Als"]
    SYNAPTIC_PRUNING -->|"activates"| Amyotrophic_Lateral_Sclerosis["Amyotrophic Lateral Sclerosis"]
    SYNAPTIC_PRUNING -->|"activates"| Ms["Ms"]
    SYNAPTIC_PRUNING -->|"regulates"| Autism["Autism"]
    SYNAPTIC_PRUNING -->|"regulates"| Neuroinflammation["Neuroinflammation"]
    complement_activation["complement activation"] -->|"activates"| SYNAPTIC_PRUNING
    microglia["microglia"] -->|"activates"| SYNAPTIC_PRUNING
    PYROPTOSIS["PYROPTOSIS"] -->|"activates"| SYNAPTIC_PRUNING
    MICROGLIA["MICROGLIA"] -->|"activates"| SYNAPTIC_PRUNING
    NEURODEGENERATIVE_DISEASES["NEURODEGENERATIVE DISEASES"] -->|"activates"| SYNAPTIC_PRUNING
    NEURODEGENERATION["NEURODEGENERATION"] -->|"activates"| SYNAPTIC_PRUNING
    ALZHEIMER_S_DISEASE["ALZHEIMER'S DISEASE"] -->|"activates"| SYNAPTIC_PRUNING
    P62["P62"] -->|"activates"| SYNAPTIC_PRUNING
    COMPLEMENT["COMPLEMENT"] -->|"inhibits"| SYNAPTIC_PRUNING

Outgoing (186)

Target	Relation	Type	Str
Dysfunctional Synapses	targets	phenotype	0.90
Weakened Synapses	targets	phenotype	0.90
Learning And Memory	regulates	process	0.90
Synaptic Plasticity	regulates	process	0.90
MICROGLIA	activates	gene	0.90
Aged Brain	expressed_in	brain_region	0.85
Neuronal Activity	regulates	process	0.85
Synapse Formation	associated_with	process	0.85
Memory Strength	modulates	phenotype	0.80
Cognitive Decline	correlates_with	phenotype	0.80
Neurodegeneration	activates	disease	0.75
Als	associated_with	disease	0.75
Inflammation	regulates	disease	0.75
neurodegeneration	activates	process	0.75
Regulated Cell Death	associated_with	process	0.70
NEURON	activates	gene	0.70
COMPLEMENT	implicated_in	gene	0.70
INFLAMMATION	regulates	gene	0.70
NEURODEGENERATIVE DISEASES	implicated_in	gene	0.70
NEURON	implicated_in	gene	0.70
Complement	associated_with	pathway	0.70
PHAGOCYTOSIS	activates	gene	0.70
MICROGLIA	regulates	gene	0.70
OVERVIEW	regulates	gene	0.70
Phagocytosis	activates	pathway	0.70
Stroke	implicated_in	disease	0.65
Multiple Sclerosis	implicated_in	disease	0.65
Neurodegeneration	implicated_in	disease	0.65
Epilepsy	associated_with	disease	0.65
Ms	regulates	disease	0.65
Traumatic Brain Injury	implicated_in	disease	0.65
Aging	associated_with	disease	0.65
Stroke	activates	disease	0.65
Als	regulates	disease	0.65
Aging	regulates	disease	0.65
Neurodegeneration	regulates	disease	0.65
Infection	implicated_in	disease	0.65
Autism	inhibits	disease	0.65
Inflammation	therapeutic_target	disease	0.65
Neuroinflammation	therapeutic_target	disease	0.65
Alzheimer	therapeutic_target	disease	0.65
Aging	activates	disease	0.65
Ms	activates	disease	0.65
ALS	regulates	disease	0.65
Autism	regulates	disease	0.65
Neuroinflammation	regulates	disease	0.65
Amyotrophic Lateral Sclerosis	activates	disease	0.65
Traumatic Brain Injury	regulates	disease	0.65
Alzheimer	regulates	disease	0.65
Depression	regulates	disease	0.65

Incoming (155)

Source	Relation	Type	Str
Microglia	mediates	cell_type	0.95
MICROGLIA	mediates	cell_type	0.95
Complement	mediates	pathway	0.95
Autophagy	involved_in	process	0.95
Complement System	mediates	pathway	0.90
complement_cascade	associated_with	pathway	0.90
C3	causes	protein	0.90
MICROGLIA	associated_with	gene	0.90
complement cascade	causes	pathway	0.90
TREM2	modulates	gene	0.90
C1QA	causes	protein	0.90
C1Q	causes	protein	0.90
disease-associated microglia	activates	cell_type	0.90
complement	regulates	protein	0.90
C1Q	mediates	protein	0.85
Complement Inhibition	inhibits	mechanism	0.85
C1q-C3-CR3 Pathway	mediates	pathway	0.85
CR3	mediates	receptor	0.85
C1Q	involved_in	protein	0.85
C3	involved_in	protein	0.85
CR3	involved_in	receptor	0.85
C1q	involved_in	protein	0.85
TREM2	enhances	gene	0.80
C1Q	enhances	gene	0.80
C1q	mediates	protein	0.80
C1Q/C3	causes	gene	0.70
C1QA	facilitates	protein	0.70
microglia	activates	cell_type	0.70
C1q	causes	protein	0.70
TREM2 knockout	impairs	process	0.70
CX3CR1 Deficiency	regulates	phenotype	0.70
MHC-I	biomarker_for	protein	0.70
TREM2 Knockout	inhibits	phenotype	0.70
microglia	regulates	cell_type	0.70
C1q	activates	protein	0.70
C3	regulates	gene	0.70
Cx3Cr1	regulates	protein	0.70
CX3CR1	inhibits	gene	0.70
TREM2	regulates	protein	0.70
CX3CR1-fractalkine signaling	regulates	pathway	0.70
TREM2	associated_with	gene	0.70
CD33	associated_with	gene	0.70
microglial_activation	regulates	phenotype	0.70
Osteopontin	regulates	protein	0.70
C1 complex	causes	protein	0.70
complement C1q	causes	protein	0.70
complement activation	activates	process	0.70
C1QA	associated_with	gene	0.70
NEURODEGENERATION	activates	gene	0.70
BET inhibitors	modulates	drug	0.70

Targeting Hypotheses (13)

Hypotheses where this entity is a therapeutic target

Hypothesis	Score	Disease	Analysis
Complement C1q-Mediated Synaptic Pruning Drives Early Cognit	0.769	neurodegeneration	Legacy Pre-Pipeline Hypothesis Import
LPS-primed microglial trained immunity establishes persisten	0.670	neurodegeneration	Synaptic pruning by microglia in neurode
TNF-α/IL-1β-Cx43 Hemichannel Axis as Upstream Link Between S	0.663	cell-biology	What is the relative contribution of con
NLRP3 Inflammasome Priming Converts SCFA-Sensitive Pyroptosi	0.620	neurodegeneration	How does gut microbiome dysbiosis contri
Complement-Mediated Synaptic Pruning Dysregulation	0.612	neurodegeneration	Gene expression changes in aging mouse b

Synaptic Pruning Precision Therapy	0.612	alzheimers	Neuroinflammation and microglial priming
Microglial TREM2 Activation to Enhance Synaptic Pruning Regu	0.535	connectomics	Human connectome alterations in Alzheime
TREM2 Agonism to Redirect Microglia from Synaptic Pruning to	0.521	neurodegeneration	How do ALS-associated OPTN mutations mec
Projection-specific vulnerability to complement-mediated syn	0.380	perioperative-neurocognitive-disorders	Why does prolonged anesthesia cause both
Microglia-Mediated Synaptic Pruning Modulation to Optimize F	0.380	connectomics	Human connectome alterations in Alzheime
CREB-Mediated Differential CD55/CD46 Expression Creates Acti	0.380	synaptic-biology	What determines the selectivity of compl
Astrocyte-Mediated Synaptic Pruning to Optimize Functional C	0.354	connectomics	Human connectome alterations in Alzheime
Population-Specific Synaptic Pruning Modulation	0.000	-	How do neurodegeneration gene expression

Mentioning Analyses (23)

Scientific analyses that reference this entity

Does the cancer-cystatin-C-TREM2 pathway protect against tau pathology and other

neurodegeneration | 2026-04-25 | 13 hypotheses Top: 0.867

Does C1q function differ based on subcellular localization or binding partner id

neurodegeneration | 2026-04-25 | 6 hypotheses Top: 0.750

Does Alectinib truly bind C1q directly with high affinity, or is this an experim

molecular biology | 2026-04-21 | 1 hypotheses Top: 0.582

Analyze the spectrum of microglial activation states (DAM, homeostatic, inflamma

neurodegeneration | 2026-04-16 | 1 hypotheses Top: 0.627

How does Alectinib, a kinase inhibitor, achieve high-affinity binding to complem

neuroinflammation | 2026-04-16 | 5 hypotheses Top: 0.597

Experiments (11)

Experimental studies targeting or related to this entity

Experiment	Type	Disease	Score	Model	Status	Est. Cost
Network pharmacology analysis of QTJD active compounds and pathways	exploratory	Mycoplasma pneumoniae pneumoni	0.900	computational network analysis	proposed	N/A
C1q neutralization experiment	validation	perioperative neurocognitive d	0.900	rats	proposed	N/A
scRNA-seq analysis of human atherosclerotic plaques	exploratory	Atherosclerosis	0.900	human atherosclerotic plaque s	proposed	N/A
Sevoflurane-induced neurotoxicity (SIN) model in rats	validation	perioperative neurocognitive d	0.900	rats	proposed	N/A
Machine learning-based identification of C1Q hub genes	exploratory	Atherosclerosis	0.900	Human bulk RNA sequencing data	proposed	N/A
Transcriptomic profiling and differential expression analysis	exploratory	Alzheimer's disease	0.900	1-month-old APP/PS1 mice cereb	proposed	N/A
Gene expression validation in apoE-/- mice	validation	Atherosclerosis	0.850	apoE-/- mice	proposed	N/A
ox-LDL treatment of RAW264.7 macrophages	exploratory	Atherosclerosis	0.850	RAW264.7 macrophages	proposed	N/A
bEV-mediated synaptic pruning via C1q-C3 pathway	exploratory	Alzheimer's disease	0.850	microglia and synapses (in viv	proposed	N/A
Validation of hub genes in ox-LDL treated RAW264.7 macrophages	exploratory	Atherosclerosis	0.800	RAW264.7 macrophages	proposed	N/A
Validation of hub genes in apoE-/- atherosclerotic mice	validation	Atherosclerosis	0.800	apoE-/- mice	proposed	N/A

Related Papers (20)

Scientific publications cited in analyses involving this entity

Title & PMID	Authors	Journal	Year	Citations
Prolonged anesthesia induces neuroinflammation and complement-mediated microglia [PMID:36600274]	Xu F, Han L, Wang Y, Deng D, Ding Y, Zha	BMC Med	2023	2
Perivascular cells induce microglial phagocytic states and synaptic engulfment v [PMID:36747024]	De Schepper S, Ge JZ, Sierksma A, Crowle	Nat Neurosci	2023	2
Young adult microglial deletion of C1q reduces engulfment of synapses and preven [PMID:41000995]	Petrisko TJ, Chu SH, Gomez-Arboledas A,	bioRxiv : the preprint server	2025	1
Gut-derived bacterial vesicles carrying lipopolysaccharide promote microglia-med [PMID:40731189]	Zhao X, Yu J, Xu B, Xu Z, Lei X, Han S,	Alzheimer's & dementia : the j	2025	1
Trigeminal neuralgia. [PMID:38816415]	Ashina S, Robertson CE, Srikiatkhachorn	Nature reviews. Disease primer	2024	1
Microglia regulation of synaptic plasticity and learning and memory. [PMID:34472455]	Cornell J, Salinas S, Huang HY, Zhou M	Neural Regen Res	2022	1
The Role of Complement in Synaptic Pruning and Neurodegeneration. [PMID:34595138]	Gomez-Arboledas A, Acharya MM, Tenner AJ	ImmunoTargets and therapy	2021	1
Early complement genes are associated with visual system degeneration in multipl [PMID:31289819]	Fitzgerald KC, Kim K, Smith MD, Aston SA	Brain	2019	1
Opioid Receptors. [PMID:26332001]	Stein C	Annual review of medicine	2016	1
Pioglitazone attenuates complement-mediated microglial synaptic engulfment in an [PMID:41396874]	Unknown	Brain : a journal of neurology	2026	0
Sustained inhibitory dysfunction in complement component C1qa-deficient mice und [PMID:41544964]	Righes Marafiga J, Vu T, Bowlus J, Barab	Progress in neurobiology	2026	0
Synaptic pruning genes networks in Alzheimer's disease: correlations with neurop [PMID:40515808]	Sanfilippo C, Castrogiovanni P, Imbesi R	Geroscience	2026	0
Synaptic pruning genes networks in Alzheimer's disease: correlations with neurop [PMID:40515808]	Sanfilippo C, Castrogiovanni P, Imbesi R	GeroScience	2026	0
Alzheimer's Disease as a Disorder of Neuroimmune Dysregulation. [PMID:41745721]	Aranda-Abreu GE, Rojas-Durán F, Hernánde	Neurology international	2026	0
The microglial TREM2 receptor programs hippocampal development in a mouse model [PMID:41887542]	Ahmed S, Bowers C, Munoz-Martin J, Jamwa	Brain, behavior, and immunity	2026	0
Sex-Specific Molecular Architecture of Microglia-Mediated Neuronal Pruning Acros [PMID:41324815]	Sanfilippo C, Castrogiovanni P, Imbesi R	Molecular neurobiology	2025	0
Proteomic discoveries in hypermobile Ehlers-Danlos syndrome reveal insights into [PMID:40972649]	Griggs M, Daylor V, Petrucci T, Weintrau	ImmunoHorizons	2025	0
C5aR1 signaling promotes region- and age-dependent synaptic pruning in models of [PMID:38278523]	["Angela Gomez-Arboledas", "Maria I Fons	Alzheimer's & dementia : t	2024	0
The dopamine analogue CA140 alleviates AD pathology, neuroinflammation, and resc [PMID:39129007]	Chae S, Lee HJ, Lee HE, Kim J, Jeong YJ,	Journal of neuroinflammation	2024	0
Molecular mechanisms underlying microglial sensing and phagocytosis in synaptic [PMID:37905877]	["Huo Anran", "Wang Jiali", "Li Qi", "Li	Neural regeneration research	2024	0

Debates (20)

Multi-agent debates referencing this entity

Hypothesis debate: SASP-Mediated Complement Cascade Amplification

closed · Rounds: 4 · Score: 0.40 · 2026-04-27

Does the cancer-cystatin-C-TREM2 pathway protect against tau pathology and other

closed · Rounds: 4 · Score: 0.66 · 2026-04-25

Does C1q function differ based on subcellular localization or binding partner id

closed · Rounds: 4 · Score: 0.68 · 2026-04-25

What is the role of microglial synaptic pruning in Alzheimer's disease and other

closed · Rounds: 4 · Score: 0.68 · 2026-04-22

Investigate mechanisms of epigenetic reprogramming in aging neurons

closed · Rounds: 4 · Score: 0.79 · 2026-04-22

While SPP1 absence prevents synaptic loss, it's unclear whether this represents

closed · Rounds: 4 · Score: 0.69 · 2026-04-21

The study shows C1qa tags synapses for microglial elimination, but doesn't expla

closed · Rounds: 4 · Score: 0.75 · 2026-04-21

While the study demonstrates both NF-κB pathway activation and increased C1qa ex

closed · Rounds: 4 · Score: 0.74 · 2026-04-21

Do these mechanistic hypotheses explain layer-specific synaptic vulnerability in

closed · Rounds: 4 · Score: 0.30 · 2026-04-21

The fundamental premise remains unvalidated despite extensive mechanistic specul

closed · Rounds: 4 · Score: 0.50 · 2026-04-21

Related Research

Hypotheses and analyses mentioning SYNAPTIC PRUNING in their description or question text

SYNAPTIC PRUNING

Understanding Entity Pages

Summary

Pathway Diagram

Outgoing (186)

Incoming (155)

Targeting Hypotheses (13)

Mentioning Analyses (23)

Does the cancer-cystatin-C-TREM2 pathway protect against tau pathology and other

Does C1q function differ based on subcellular localization or binding partner id

Does Alectinib truly bind C1q directly with high affinity, or is this an experim

Analyze the spectrum of microglial activation states (DAM, homeostatic, inflamma

How does Alectinib, a kinase inhibitor, achieve high-affinity binding to complem

test

Why have numerous phase 3 clinical trials failed despite advances in understandi

Human connectome alterations in Alzheimer's disease: structural and functional n

Why is TYROBP deficiency neuroprotective when TYROBP is an adapter for multiple

How can circuit-level neurodegeneration mechanisms be identified without complet

Which neural cell types exhibit the most pronounced gene expression alterations

Do these mechanistic hypotheses explain layer-specific synaptic vulnerability in

Why does prolonged anesthesia cause both cognitive dysfunction and anxiety throu

How does sevoflurane-induced NF-κB activation specifically trigger complement ca

What determines the selectivity of complement-mediated synaptic elimination in p

Does SPP1-mediated synaptic engulfment represent beneficial clearance or patholo

Investigate mechanisms of epigenetic reprogramming in aging neurons

How do neurodegeneration gene expression patterns in SEA-AD differ from other po

Cell type vulnerability in Alzheimer's Disease (SEA-AD data - v2)