ID: h-e315a365
Hypothesis
Synaptic-Selective Autophagy Receptor Expression to Bypass Axonal Lysosome Deficiency
Synaptic-Selective Autophagy Receptor Expression to Bypass Axonal Lysosome Deficiency.
EvidencePending (0%)📖 0 cit🗣 1 debates✓ 5 support✗ 6 oppose
🧪 Overview
Synaptic-Selective Autophagy Receptor Expression to Bypass Axonal Lysosome Deficiency
🧬 Mechanism
🧬 Curated Mechanism Pathway
Curated pathway from expert analysis
flowchart TD
A["Axonal Lysosome<br/>Deficiency"]
B["Synaptic-Selective<br/>Autophagy Receptor"]
C["SQSTM1/p62 Binding<br/>to Ubiquitinated Cargo"]
D["Autophagosome<br/>Formation Bypassing soma"]
E["Synaptic Protein<br/>Clearance"]
F["Axonal Integrity<br/>Preserved"]
G["Bypasses Axonal<br/>Lysosome Deficit"]
A --> B
B --> C
C --> D
D --> E
E --> F
G -.->|"enables"| D
style A fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
style F fill:#1b5e20,stroke:#a5d6a7,color:#a5d6a7⚖️ Evidence
⚖️ Evidence Matrix5 supports6 contradicts
Supports
Autophagosomes form at presynaptic terminals but rarely fuse with lysosomes in mature neurons
Supports
Synaptic overexpression of p62 in Drosophila reduces neurodegeneration from autophagy impairment
Contradicts
Creating 'sink compartment' without functional lysosomes merely relocates aggregates
Contradicts
p62 coalesces into inclusions that sequester autophagy machinery components (ULK1, Vps34), further impairing process
Contradicts
p62 aggregates recruit and inactivate mTORC1, creating feedforward dysregulation
Contradicts
p62 lacks transmembrane domains and synaptic localization signals - synaptophysin targeting is questionable
Contradicts
AAV9 transduces astrocytes and microglia - non-cell-autonomous effects unaccounted
📖 Linked Papers
No linked papers recorded for this hypothesis yet.
🏥 Translation
🧬 3D Protein Structure — SQSTM1
No curated PDB or AlphaFold mapping for SQSTM1 yet. Search RCSB →
🧠 GTEx v10 Brain ExpressionJSON
Median TPM across 13 brain regions for SQSTM1 (p62/sequestosome 1) 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 SQSTM1 (p62.
Run python3 scripts/backfill_hypothesis_depmap.py to populate.
💰 Estimated Development
Cost
$0
Timeline
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🏆 Tournament
🏆 Arenas / Elo
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📊 Market Indicators
7d Trend
↗
Rising
7d Momentum
▲ 1.5%
Volatility
Medium
0.0364
Events (7d)
3
Price History
▲11.5%💾 Resource Usage
LLM Tokens
39,448
$0.1183
Total Cost
$0.1183
🔮 Predictions
🔎 Predictions vs Observations2 predictions · 0 with recorded observations
| Prediction | Predicted | Observed | Status | Conf |
|---|---|---|---|---|
| IF SQSTM1 is selectively expressed in retinal ganglion cell axons using an AAV2 retrograde vector in a mouse model of axonal lysosome deficiency (PSEN1/APP triple knock-in), THEN axonal transport of s | Axonal transport velocity of synaptophysin-positive vesicles will increase by >30% (measured by in vivo imaging) and ERG photopic b-wave amplitude will normaliz | — no observation — | pending | 0.55 |
| IF synaptic-selective SQSTM1 (p62) is overexpressed via viral transduction in primary neurons with lysosome deficiency (LAMP2 knockdown), THEN synaptic protein ubiquitination will decrease by >40% mea | Synaptic protein ubiquitination will decrease by >40% (targeting known synaptic substrates like Synapsin I, PSD-95, and SV2A) | — no observation — | pending | 0.65 |
🔮 Falsifiable Predictions (2)
pendingconf 65%
IF synaptic-selective SQSTM1 (p62) is overexpressed via viral transduction in primary neurons with lysosome deficiency (LAMP2 knockdown), THEN synaptic protein ubiquitination will decrease by >40% measured by targeted proteomics within 72 hours.
Predicted outcome: Synaptic protein ubiquitination will decrease by >40% (targeting known synaptic substrates like Synapsin I, PSD-95, and SV2A)
Falsification: Ubiquitinated synaptic protein levels remain unchanged or increase by >20% despite SQSTM1 overexpression, indicating failure to bypass lysosome deficiency
pendingconf 55%
IF SQSTM1 is selectively expressed in retinal ganglion cell axons using an AAV2 retrograde vector in a mouse model of axonal lysosome deficiency (PSEN1/APP triple knock-in), THEN axonal transport of synaptophysin-positive vesicles will improve by >30% and functional rescue of photopic response will
Predicted outcome: Axonal transport velocity of synaptophysin-positive vesicles will increase by >30% (measured by in vivo imaging) and ERG photopic b-wave amplitude wil
Falsification: Axonal transport defects persist unchanged or worsen, and ERG responses show no improvement, indicating SQSTM1 expression cannot compensate for lysosome deficiency in vivo
▸Metadatasource: v1_phase_c_backfill · origin_type: gap_debate
| source | v1_phase_c_backfill |
| origin_type | gap_debate |
| _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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