ID: h-56af4a2b91
Hypothesis
Ganglioside-rich extracellular vesicles preserve alpha-synuclein fibril conformation in CSF
Membrane-derived cofactors in extracellular vesicles maintain polymorph fidelity and templating competence.
EvidencePending (0%)📖 1 cit🗣 1 debates✓ 6 support✗ 1 oppose
✓ All Quality Gates Passed
🧪 Overview
Membrane-derived cofactors in extracellular vesicles maintain polymorph fidelity and templating competence.
🧬 Mechanism
🧬 Curated Mechanism Pathway
Curated pathway from expert analysis
flowchart TD
A["Target Gene: SNCB"]
B["Molecular Mechanism<br/>Pathway Activation"]
C["Cellular Phenotype<br/>Neuronal / Glial Response"]
D["Network Effect<br/>Circuit-Level Consequence"]
E["Disease Relevance<br/>Neurodegeneration Link"]
A --> B --> C --> D --> E
style A fill:#1a237e,stroke:#4fc3f7,color:#4fc3f7
style E fill:#1b5e20,stroke:#81c784,color:#81c784⚖️ Evidence
⚖️ Evidence Matrix6 supports1 contradicts
Supports
Extracellular Alpha-Synuclein: Mechanisms for Glial Cell Internalization and Activation.
Supports
Perilla-derived chalcone inhibits α-synuclein fibrillization and prevents aggregate-induced disruption of intracellular α-synuclein conformation in neuronal cells.
Supports
Initiation and propagation of α-synuclein aggregation in the nervous system.
Supports
Rotenone and elevated extracellular potassium concentration induce cell-specific fibrillation of α-synuclein in axons of cholinergic enteric neurons in the guinea-pig ileum.
Contradicts
Mixed vesicle preparations can blur specificity and overstate the mechanism.
📖 Linked Papers
No linked papers recorded for this hypothesis yet.
🏥 Translation
🧬 3D Protein Structure — SNCB
No curated PDB or AlphaFold mapping for SNCB yet. Search RCSB →
🧠 GTEx v10 Brain ExpressionJSON
Median TPM across 13 brain regions for SNCB from 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.
No DepMap CRISPR Chronos data found for SNCB.
Run python3 scripts/backfill_hypothesis_depmap.py to populate.
💰 Estimated Development
Cost
$0
Timeline
—
🏆 Tournament
🏆 Arenas / Elo
No arena matches recorded yet. Browse Arenas →
📊 Market Indicators
7d Trend
↔
Stable
7d Momentum
▼ 0.3%
Volatility
Low
0.0028
Events (7d)
2
Price History
▼6.4%💾 Resource Usage
LLM Tokens
1,502
$0.0045
Total Cost
$0.0045
🔮 Predictions
🔎 Predictions vs Observations2 predictions · 0 with recorded observations
| Prediction | Predicted | Observed | Status | Conf |
|---|---|---|---|---|
| IF CSF-derived extracellular vesicles are enzymatically depleted of gangliosides via neuraminidase treatment (removing terminal sialic acids from GM1, GD1a, GT1b), THEN the templating competence of al | ≥50% reduction in RT-QuIC seeding kinetics (increased lag phase and decreased maximum slope) for alpha-synuclein fibrils incubated with ganglioside-depleted EVs | — no observation — | pending | 0.65 |
| IF synthetic gangliosides (GM1, GD1a at 1:1 ratio) are reconstituted into EVs isolated from GBA1-knockout cells (lacking endogenous ganglioside biosynthesis), THEN the preserved alpha-synuclein fibril | Significantly enhanced ThT fluorescence intensity and reduced caspase-cleaved SNCB fragments on Western blot for fibrils pre-incubated with ganglioside-reconsti | — no observation — | pending | 0.58 |
🔮 Falsifiable Predictions (2)
pendingconf 65%
IF CSF-derived extracellular vesicles are enzymatically depleted of gangliosides via neuraminidase treatment (removing terminal sialic acids from GM1, GD1a, GT1b), THEN the templating competence of alpha-synuclein fibrils will decrease by ≥50% compared to mock-treated EVs as measured by RT-QuIC maxi
Predicted outcome: ≥50% reduction in RT-QuIC seeding kinetics (increased lag phase and decreased maximum slope) for alpha-synuclein fibrils incubated with ganglioside-de
Falsification: No significant difference in RT-QuIC kinetics between ganglioside-depleted and mock-treated EVs (p > 0.05, n≥6 replicates per condition)
pendingconf 58%
IF synthetic gangliosides (GM1, GD1a at 1:1 ratio) are reconstituted into EVs isolated from GBA1-knockout cells (lacking endogenous ganglioside biosynthesis), THEN the preserved alpha-synuclein fibril conformation will show ≥2-fold higher Thioflavin-T binding and ≥30% reduced proteolytic fragmentati
Predicted outcome: Significantly enhanced ThT fluorescence intensity and reduced caspase-cleaved SNCB fragments on Western blot for fibrils pre-incubated with gangliosid
Falsification: No significant difference in ThT binding or proteolytic fragmentation patterns between ganglioside-reconstituted and vehicle EVs (p > 0.05, n≥5 per condition)
▸Metadatasource: v1_phase_c_backfill · origin_type: debate_synthesizer
| source | v1_phase_c_backfill |
| origin_type | debate_synthesizer |
| _schema_version | 1 |
📊 Evidence Profile
Evidence Balance
+0%
Certainty
0%
Debates
0
Incoming
0
Outgoing
0
0 supporting
0 contradicting
0 neutral
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