concept

COMPLEMENT ACTIVATION

Entity Detail — Knowledge Graph Node

Understanding Entity Pages

This page aggregates everything SciDEX knows about COMPLEMENT ACTIVATION: 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.

84Connections

2Hypotheses

10Analyses

50Outgoing

30Incoming

0Experiments

10Debates

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💡 Concept Info

Name	COMPLEMENT ACTIVATION
Key Genes/Proteins	ALPHA-SYNUCLEIN, AMYLOID, COMPLEMENT, INFLAMMASOME
Related Diseases	ALZHEIMER'S DISEASE, INFLAMMATION
Related Pathways	COMPLEMENT CASCADE

Pathway Diagram

graph TD
    COMPLEMENT_ACTIVATION["COMPLEMENT ACTIVATION"]
    COMPLEMENT_ACTIVATION -->|"causes"| Retinal_Ganglion_Cell_Dysfunct["Retinal Ganglion Cell Dysfunction"]
    COMPLEMENT_ACTIVATION -->|"causes"| Brain_Inflammation["Brain Inflammation"]
    COMPLEMENT_ACTIVATION -->|"activates"| MICROGLIA["MICROGLIA"]
    COMPLEMENT_ACTIVATION -->|"promotes"| Neurodegeneration["Neurodegeneration"]
    COMPLEMENT_ACTIVATION -->|"mediates"| Tissue_Destruction["Tissue Destruction"]
    COMPLEMENT_ACTIVATION -->|"contributes to"| Alzheimer_s_Disease["Alzheimer's Disease"]
    NPTX2["NPTX2"] -->|"inhibits"| COMPLEMENT_ACTIVATION
    Microglia["Microglia"] -->|"upregulates"| COMPLEMENT_ACTIVATION
    C1Q["C1Q"] -->|"activates"| COMPLEMENT_ACTIVATION
    C1QA["C1QA"] -->|"regulates"| COMPLEMENT_ACTIVATION
    Progranulin["Progranulin"] -->|"regulates"| COMPLEMENT_ACTIVATION
    ALZHEIMER_S_DISEASE["ALZHEIMER'S DISEASE"] -->|"activates"| COMPLEMENT_ACTIVATION
    ASTROCYTES["ASTROCYTES"] -->|"activates"| COMPLEMENT_ACTIVATION
    COMPLEMENT["COMPLEMENT"] -->|"activates"| COMPLEMENT_ACTIVATION

Outgoing (54)

Target	Relation	Type	Str
Retinal Ganglion Cell Dysfunction	causes	phenotype	0.95
MICROGLIA	activates	cell_type	0.95
Brain Inflammation	promotes	process	0.95
Neurodegeneration	promotes	process	0.95
Brain Inflammation	causes	process	0.95
Tissue Destruction	mediates	mechanism	0.90
Retinal Ganglion Cell Death	causes	phenotype	0.90
Tissue Destruction	causes	process	0.90
Neuromyelitis Optica Spectrum Disorder	drives	disease	0.90
neuroinflammation	associated_with	phenotype	0.90
Alzheimer's disease	involved_in	disease	0.90
synapse elimination	causes	mechanism	0.90
Astrocyte A1 transition	triggers	process	0.90
Alzheimer's Disease	contributes_to	disease	0.90
SYNAPTIC LOSS	contributes_to	phenotype	0.85
Schizophrenia	contributes_to	disease	0.85
Neuroinflammation	associated_with	process	0.85
Synaptic Loss	contributes_to	phenotype	0.80
Vascular Dysfunction	contributes_to	phenotype	0.80
Alzheimer's disease	drives	disease	0.80
ALZHEIMER'S DISEASE	biomarker_for	disease	0.80
neurodegeneration	causes	process	0.80
Cerebral Amyloid Angiopathy	contributes_to	disease	0.75
synapse elimination	causes (excessive complement activation leads to neurotoxi)	mechanism	0.75
Cerebral Amyloid Angiopathy	involved_in	disease	0.75
synapse loss	causes	phenotype	0.70
Synaptic Remodeling	regulates	phenotype	0.70
SYNAPTIC LOSS	causes	phenotype	0.70
NEURONS	exacerbates	cell_type	0.70
synaptic pruning	activates	process	0.70
synapse loss	causes	process	0.70
synaptic elimination	causes	phenotype	0.70
synaptic loss	causes	phenotype	0.70
neuroinflammation	drives	mechanism	0.70
AMYLOID	causes	protein	0.70
INFLAMMATION	causes	phenotype	0.65
INFLAMMATION	implicated_in	phenotype	0.55
COMPLEMENT CASCADE	associated_with	pathway	0.50
AMYLOID PET	associated_with	biomarker	0.50
PHAGOCYTOSIS	activates	process	0.50
CORTEX	associated_with	brain_region	0.50
NLRP3 INFLAMMASOME	associated_with	pathway	0.45
RETINA	associated_with	brain_region	0.45
HIPPOCAMPUS	associated_with	brain_region	0.45
CHOROID PLEXUS	associated_with	brain_region	0.45
CORTEX	activates	brain_region	0.35
OXIDATIVE STRESS	activates	process	0.35
MACROPHAGES	activates	cell_type	0.35
NEUROINFLAMMATION	activates	process	0.35
TREM2	activates	gene	0.35

Incoming (30)

Source	Relation	Type	Str
NPTX2	inhibits	protein	0.95
C5AR1	mediates	gene	0.90
eculizumab	inhibits	drug	0.90
C1Q deposition	activates	protein	0.90
MICROGLIA APOE LIPOPROTEINS	involved_in	protein	0.85
Microglia	upregulates	cell_type	0.85
TREM2	upregulates	gene	0.85
Microglia	associated_with	cell_type	0.85
SPI1	associated_with	gene	0.80
Amyloid Plaques	associated_with	biomarker	0.80
amyloid	associated_with	gene	0.70
MICROGLIA	inhibits	cell_type	0.70
APOE	modulates	gene	0.70
C5AR1	mediates	gene	0.70
C1Q	activates	protein	0.70
C1QA	regulates	gene	0.70
SPI1	interacts_with	gene	0.65
MICROGLIA	interacts_with	cell_type	0.65
MICROGLIA	degrades	cell_type	0.65
INFLAMMATION	targets	phenotype	0.65
TREM2	interacts_with	gene	0.65
TREM2	inhibits	gene	0.65
TREM2	regulates	gene	0.65
Progranulin	regulates	protein	0.60
34946939	is pivotal in	paper	0.60
ASTROCYTES	activates	cell_type	0.50
COMPLEMENT	activates	protein	0.50
ALZHEIMER'S DISEASE	activates	disease	0.50
ANGIOGENESIS	activates	process	0.35
ALPHA-SYNUCLEIN	activates	gene	0.35

Targeting Hypotheses (2)

Hypotheses where this entity is a therapeutic target

Hypothesis	Score	Disease	Analysis
SUMO1-Mediated Synaptotagmin-1 SUMOylation at Lys124 Impairs	0.652	neurodegeneration	What are the specific PTM changes in syn
Direct C1q Binding Enables FcγR-Independent Complement Activ	0.148	molecular biology	Does Alectinib truly bind C1q directly w

Mentioning Analyses (10)

Scientific analyses that reference this entity

Methodology challenge: dataset 'Allen Brain SEA-AD Single Cell Dataset' — evalua

neurodegeneration | 2026-04-28 | 7 hypotheses Top: 0.662

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

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

Do these mechanistic hypotheses from the SEA-AD Atlas bundle explain layer-speci

neurodegeneration | 2026-04-10 | 0 hypotheses

Why do clinical manifestations overlap despite distinct underlying etiologies in

neuroinflammation | 2026-04-08 | 7 hypotheses Top: 0.455

Why does prolonged anesthesia cause both cognitive dysfunction and anxiety throu

neurodegeneration | 2026-04-08 | 1 hypotheses Top: 0.380

Experiments (0)

Experimental studies targeting or related to this entity

Experiment	Type	Disease	Score	Feasibility	Model	Status	Est. Cost
No experiments found

Related Papers (0)

Scientific publications cited in analyses involving this entity

Title & PMID	Authors	Journal	Year	Citations
No papers found

Debates (10)

Multi-agent debates referencing this entity

Methodology challenge: dataset 'Allen Brain SEA-AD Single Cell Dataset' — evalua

active · Rounds: 4 · Score: 0.76 · 2026-04-28

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

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

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

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

Do these mechanistic hypotheses from the SEA-AD Atlas bundle explain layer-speci

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

The study reports that complement-mediated synaptic elimination produces both co

closed · Rounds: 4 · Score: 0.83 · 2026-04-09

The abstract notes that clinical presentations overlap across different myelopat

closed · Rounds: 4 · Score: 0.86 · 2026-04-09

Synaptic pruning by microglia in early AD

closed · Rounds: 4 · Score: 0.95 · 2026-04-06

What cell types are most vulnerable in Alzheimer's Disease based on SEA-AD trans

closed · Rounds: 4 · Score: 0.95 · 2026-04-03

What cell types are most vulnerable in Alzheimer's Disease based on SEA-AD trans

closed · Rounds: 4 · Score: 0.95 · 2026-04-02

Related Research

Hypotheses and analyses mentioning COMPLEMENT ACTIVATION in their description or question text

No additional research found

COMPLEMENT ACTIVATION

Understanding Entity Pages

Pathway Diagram

Outgoing (54)

Incoming (30)

Targeting Hypotheses (2)

Mentioning Analyses (10)

Methodology challenge: dataset 'Allen Brain SEA-AD Single Cell Dataset' — evalua

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

Do these mechanistic hypotheses from the SEA-AD Atlas bundle explain layer-speci

Why do clinical manifestations overlap despite distinct underlying etiologies in

Why does prolonged anesthesia cause both cognitive dysfunction and anxiety throu

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

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

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

Synaptic pruning by microglia in neurodegeneration

Synaptic pruning by microglia in early AD

Experiments (0)

Related Papers (0)

Debates (10)

Methodology challenge: dataset 'Allen Brain SEA-AD Single Cell Dataset' — evalua

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

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

Do these mechanistic hypotheses from the SEA-AD Atlas bundle explain layer-speci

The fundamental premise remains unvalidated despite extensive mechanistic specul

The study reports that complement-mediated synaptic elimination produces both co

The abstract notes that clinical presentations overlap across different myelopat

Synaptic pruning by microglia in early AD

What cell types are most vulnerable in Alzheimer's Disease based on SEA-AD trans

What cell types are most vulnerable in Alzheimer's Disease based on SEA-AD trans

Related Research