ID: h-fcd35131cf
Hypothesis

C1Q-Angiogenic Axis Promoting Plaque Neovascularization

C1Q-Angiogenic Axis Promoting Plaque Neovascularization starts from the claim that modulating C1QA/C1QC within the disease context of neuroinflammation can redirect a disease-relevant process.
🧬 C1QA/C1QC🩺 neuroinflammation🎯 Composite 53%💱 $0.53▼0.2%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 4 support 4 oppose
✓ All Quality Gates Passed
Mechanistic 0.52 (15%) Evidence 0.55 (15%) Novelty 0.60 (12%) Feasibility 0.55 (12%) Impact 0.58 (12%) Druggability 0.42 (10%) Safety 0.45 (8%) Competition 0.52 (6%) Data Avail. 0.58 (5%) Reproducible 0.50 (5%) KG Connect 0.50 (8%) 0.530 composite

🧪 Overview

Mechanistic Overview


C1Q-Angiogenic Axis Promoting Plaque Neovascularization starts from the claim that modulating C1QA/C1QC within the disease context of neuroinflammation can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview C1Q-Angiogenic Axis Promoting Plaque Neovascularization starts from the claim that modulating C1QA/C1QC within the disease context of neuroinflammation can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview C1Q-Angiogenic Axis Promoting Plaque Neovascularization starts from the claim that Macrophage-secreted C1Q binds to endothelial gC1qR/CD91 receptors, activating src/FAK/ERK1/2 signaling to upregulate VEGFR2 and promote VEGF-independent angiogenesis. This drives unstable microvessel formation prone to hemorrhage, contributing to plaque progression and vulnerability. The hypothesis connects lesional macrophage infiltration to intraplaque hemorrhage and clinical instability. Framed more explicitly, the hypothesis centers C1QA/C1QC within the broader disease setting of neuroinflammation.

...

🧬 Mechanism

🧬 Curated Mechanism Pathway

Curated pathway from expert analysis

flowchart TD
    A["Stressed Synapse<br/>C1q Ligand Exposed"]
    B["C1q Deposition<br/>Synaptic Tagging"]
    C["C3 Cleavage<br/>C3b Opsonization"]
    D["CR3 Recognition<br/>Microglial Receptor"]
    E["Synaptic Pruning<br/>Phagocytic Engulfment"]
    F["Synapse Loss<br/>Circuit Disruption"]
    G["Cognitive Decline<br/>Memory Impairment"]
    A --> B
    B --> C
    C --> D
    D --> E
    E --> F
    F --> G
    style A fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
    style G fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a

⚖️ Evidence

⚖️ Evidence Matrix4 supports4 contradicts
Supports
C1Q induces angiogenic program in endothelial cells independent of VEGF
Supports
gC1qR identified as C1Q receptor on endothelium
Supports
Neovascularization correlates with plaque instability in human atherosclerosis
Supports
Angiogenesis is clinically validated as therapeutic target for plaque stabilization
Contradicts
gC1qR is a widely expressed chaperone, not a canonical signaling receptor
Contradicts
VEGF independence claim contradicts stated VEGFR2 upregulation mechanism
Contradicts
No direct evidence links C1Q to intraplaque hemorrhage
Contradicts
No drug-like small molecules targeting gC1qR available
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — C1QA

🧬 PDB 1PK6 Click to expand

Experimental structure from RCSB PDB | Powered by Mol*

🧠 GTEx v10 Brain ExpressionJSON

Median TPM across 13 brain regions for C1QA/C1QC from GTEx v10.

Spinal cord cervical c-174.7 Substantia nigra38.2median TPM (GTEx v10)

💉 Clinical Trials

No clinical trials data linked to this hypothesis yet.

No curated ClinVar variants loaded for this hypothesis.

Run scripts/backfill_clinvar_variants.py to fetch P/LP/VUS variants.

🔍 Search ClinVar for C1QA →

No DepMap CRISPR Chronos data found for C1QA.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

💰 Estimated Development
Cost
$0
Timeline

🏆 Tournament

🏆 Arenas / Elo

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📊 Market Indicators

7d Trend
Stable
7d Momentum
▲ 0.0%
Volatility
Low
0.0051
Events (7d)
0
Price History
▼0.2%

💾 Resource Usage

LLM Tokens
28,692
$0.0861
Total Cost
$0.0861

🔮 Predictions

🔎 Predictions vs Observations2 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
IF C1QA is overexpressed selectively in lesional macrophages (bone marrow transplantation with C1QA-transgenic CD45.2+ cells into irradiated CD45.1+ ApoE-/- recipients) in hypercholesterolemic mice, TMacrophage-derived C1Q drives VEGF-independent endothelial VEGFR2 activation via src/FAK/ERK1/2 signaling cascade— no observation —pending0.52
IF systemic C1QA/C1QC is neutralized via chronic anti-C1Q antibody administration (2 mg/kg/week i.p. for 8 weeks) in 24-week-old ApoE-/- mice on high-fat diet, THEN plaque microvessel density (CD31+ sSignificant reduction in plaque neovascularization and hemorrhage metrics within 8 weeks of C1Q neutralization— no observation —pending0.58
🔮 Falsifiable Predictions (2)
pendingconf 58%
IF systemic C1QA/C1QC is neutralized via chronic anti-C1Q antibody administration (2 mg/kg/week i.p. for 8 weeks) in 24-week-old ApoE-/- mice on high-fat diet, THEN plaque microvessel density (CD31+ structures, #/mm²) will decrease by ≥40% and intraplaque hemorrhage incidence (Perls' Prussian blue+
Predicted outcome: Significant reduction in plaque neovascularization and hemorrhage metrics within 8 weeks of C1Q neutralization
Falsification: Microvessel density and hemorrhage incidence remain statistically indistinguishable (p > 0.05) between anti-C1Q and IgG groups, or paradoxically increase, indicating C1Q is not rate-limiting for plaqu
pendingconf 52%
IF C1QA is overexpressed selectively in lesional macrophages (bone marrow transplantation with C1QA-transgenic CD45.2+ cells into irradiated CD45.1+ ApoE-/- recipients) in hypercholesterolemic mice, THEN endothelial cells isolated from atheroma (CD31+ CD45- sorting) will show ≥2-fold increase in src
Predicted outcome: Macrophage-derived C1Q drives VEGF-independent endothelial VEGFR2 activation via src/FAK/ERK1/2 signaling cascade
Falsification: Endothelial src/FAK/ERK1/2 phosphorylation and VEGFR2 expression fail to increase despite C1Q overexpression, OR changes are abolished by anti-VEGF-A antibody co-treatment, indicating the mechanism is

📖 References (3)

  1. MMTV superantigens coerce an unconventional topology between the TCR and MHC class II.
    ["Fortin et al.. Journal of immunology (Baltimore, Md. : 1950) (2014)
  2. Identification of a human cDNA encoding a functional high affinity lipoxin A4 receptor.
    ["Fiore et al.. The Journal of experimental medicine (1994)
  3. Delivered dose and vascular response after beta-radiation for in-stent restenosis: retrospective dosimetry and volumetric intravascular ultrasound analysis.
    ["Morino et al.. Circulation (2002)
Metadatasource: v1_phase_c_backfill · origin_type: debate_synthesizer
sourcev1_phase_c_backfill
origin_typedebate_synthesizer
_schema_version1
📊 Evidence Profile
Evidence Balance
+0%
Certainty
0%
Debates
0
Incoming
0
Outgoing
0
0 supporting 0 contradicting 0 neutral
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