ID: h-2263e00831
Hypothesis

Blood-Brain Barrier Pericyte-to-Mesenchymal Transition Drives Vascular Collapse

Pericyte-to-fibroblast transition contributes to BBB breakdown and impairs glymphatic clearance.
🧬 PDGFRβ, SNAI2/SLUG, AQP4🩺 neurodegeneration🎯 Composite 56%💱 $0.54▼3.3%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 3 support 3 oppose
✓ All Quality Gates Passed
Mechanistic 0.55 (15%) Evidence 0.62 (15%) Novelty 0.68 (12%) Feasibility 0.50 (12%) Impact 0.58 (12%) Druggability 0.48 (10%) Safety 0.52 (8%) Competition 0.50 (6%) Data Avail. 0.58 (5%) Reproducible 0.52 (5%) KG Connect 0.50 (8%) 0.560 composite

🧪 Overview

Pericyte-to-fibroblast transition contributes to BBB breakdown and impairs glymphatic clearance. Chronic PDGFRβ signaling triggers pericytes to undergo partial endothelial-mesenchymal transition. These transition-state pericytes lose coverage but gain contractile apparatus, compressing capillaries and reducing cerebral blood flow while impairing AQP4 polarisation necessary for glymphatic clearance.

🧬 Mechanism

No curated mechanism pathway recorded for this hypothesis.

⚖️ Evidence

⚖️ Evidence Matrix3 supports3 contradicts
Supports
PDGFRβ+ pericyte coverage reduced in AD
Supports
APOE4 carriers show increased BBB breakdown
Supports
AQP4 mispolarization in AD impairs glymphatic clearance
Contradicts
Hypothesis conflates EndMT (endothelial) with pericyte-to-fibroblast transition (different processes)
Contradicts
PDGFRβ is required for pericyte recruitment during development—how does same pathway become harmful?
Contradicts
Human brain lacks prominent periarterial spaces—glymphatic contribution to Aβ clearance in humans is debated
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — PDGFRΒ

No curated PDB or AlphaFold mapping for PDGFRΒ yet. Search RCSB →

💉 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 PDGFRβ, SNAI2 →

No DepMap CRISPR Chronos data found for PDGFRβ, SNAI2.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

🏆 Tournament

🏆 Arenas / Elo

No arena matches recorded yet. Browse Arenas →

📊 Market Indicators

7d Trend
Stable
7d Momentum
▼ 0.6%
Volatility
Low
0.0005
Events (7d)
3
Price History
▼3.3%

💾 Resource Usage

No resource usage or linked notebooks recorded for this hypothesis yet.

Metadataorigin_type: debate_synthesizer
origin_typedebate_synthesizer
target_genePDGFRβ, SNAI2/SLUG, AQP4
_schema_version1
composite_score0.56
📊 Evidence Profile
Evidence Balance
+0%
Certainty
0%
Debates
0
Incoming
0
Outgoing
0
0 supporting 0 contradicting 0 neutral
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