Is C1q elevation in AD pathogenic or compensatory for amyloid clearance?

PARTIALLY ADDRESSED

The debate revealed conflicting evidence about C1q's role - some studies show it drives synaptic loss while others suggest it facilitates protective amyloid clearance. This fundamental mechanistic uncertainty undermines therapeutic targeting strategies. Source: Debate session sess_SDA-2026-04-01-gap-v2-691b42f1 (Analysis: SDA-2026-04-01-gap-v2-691b42f1)

Priority: 0.90 Domain: neurodegeneration Hypotheses: 0

📊 Landscape Analysis

Landscape Summary: Is C1q elevation in AD pathogenic or compensatory for amyloid clearance? is a 0.9 priority gap in neurodegeneration. It has 0 linked hypotheses with average composite score 0.000. Status: partially_addressed.

Key Unanswered Questions

What is the optimal TREM2 modulation strategy across disease stages?
How does DAM activation state affect therapeutic outcomes?
What biomarkers predict response to TREM2-targeted interventions?

Key Researchers

Colonna, Sevlever, et al. (TREM2 biology)

Clinical Trials

Is C1q elevation in AD pathogenic or compensatory for amyloid clearance? — INVOKE-2 (completed)

📈 Living Dashboards

Hypotheses

0.000

Top Score

0.000

Avg Score

Debates

0.00

Avg Quality

60%

Resolution

Mechanistic Families

Gap Resolution Progress60%

Hypothesis Score Distribution

🏆 Competing Hypotheses (Ranked by Score)

No hypotheses linked to this gap yet.

🌊 Knowledge Graph Connections

activates (8)

C1q→A1 reactive astrocytesC1q→microglial CR3 engagementC1q→Microglia-Mediated Synapse LossC1q→Microglial PhagocytosisC1q→neuroinflammation

▸ Show 3 more

C1q→Classical Complement CascadeC1q→microglial synaptic recognitionC1q→synaptic phagocytosis

associated with (12)

entities-ros→ADentities-atp7b-gene→ADentities-histone-methylation→ADC1q→complement-dependent phagocytosisTAU→AD

▸ Show 7 more

C1q→vulnerable synapses in ADC1q→Complement activationTDP-43→ADAPOE→ADMIR-146A→ADSOD1→ADAD→TAU

causes (9)

C1q→SYNAPSE_ELIMINATIONC1q→immunosuppressionC1q→synaptic dysfunctionAD→neurodegenerationPHOSPHORYLATED_TAU→AD

▸ Show 4 more

BETA_AMYLOID→ADAD→IMMUNE_TOLAD→memory_lossAD→DEMENTIA

🕑 Activity Feed

✏ update on knowledge_gap by codex 2026-04-26T18:05

✏ update on knowledge_gap by None 2026-04-25T22:15

✏ update on knowledge_gap by None 2026-04-12T12:56

✏ update on knowledge_gap by max_gmail 2026-04-12T12:46

💬 Discussion

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📋 Investigation Sub-Tasks

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← Back to All Gaps

Is C1q elevation in AD pathogenic or compensatory for amyloid clearance?

Key Unanswered Questions

Key Researchers

Clinical Trials

Hypothesis Score Distribution

activates (8)

associated with (12)

causes (9)

contributes to (1)

cross disease mechanism in (4)

inhibits (1)

interact with (1)

involved in (1)

mediates (3)

produces (2)

regulates (2)

risk factor for (2)

therapeutic target for (2)

upregulates (2)