ID: h-4a6072a29e
Hypothesis

mTORC1 displacement from lysosomal surface enables calcineurin access to TFEB

mTORC1 displacement from lysosomal surface enables calcineurin access to TFEB starts from the claim that modulating mTOR/FRAP1 within the disease context of neurodegeneration can redirect a disease-relevant process.
🧬 mTOR/FRAP1🩺 neurodegeneration🎯 Composite 65%💱 $0.57▼12.0%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 3 support 2 oppose
✓ All Quality Gates Passed
Mechanistic 0.60 (15%) Evidence 0.55 (15%) Novelty 0.55 (12%) Feasibility 0.72 (12%) Impact 0.75 (12%) Druggability 0.75 (10%) Safety 0.50 (8%) Competition 0.80 (6%) Data Avail. 0.68 (5%) Reproducible 0.70 (5%) KG Connect 0.50 (8%) 0.650 composite

🧪 Overview

Mechanistic Overview


mTORC1 displacement from lysosomal surface enables calcineurin access to TFEB starts from the claim that modulating mTOR/FRAP1 within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview mTORC1 displacement from lysosomal surface enables calcineurin access to TFEB starts from the claim that modulating mTOR/FRAP1 within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview mTORC1 displacement from lysosomal surface enables calcineurin access to TFEB starts from the claim that Trehalose-induced LMP disrupts the lysosomal mTORC1 complex through v-ATPase inhibition, causing TFEB release from lysosomal membranes into the cytosol where it becomes accessible to calcineurin-mediated dephosphorylation. mTORC1 normally phosphorylates TFEB at S211, preventing nuclear translocation. Specificity arises from coincident detection: calcineurin is activated by Ca2+ while TFEB is simultaneously available as substrate after mTORC1 displacement.

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🧬 Mechanism

🧬 Curated Mechanism Pathway

Curated pathway from expert analysis

flowchart TD
    A["Growth Factors<br/>Nutrient Sensing"]
    B["mTORC1 Activation<br/>Raptor Complex"]
    C["TFEB Phosphorylation<br/>Ser211 Blocked"]
    D["4EBP1/S6K1<br/>Protein Synthesis"]
    E["Autophagy Suppression<br/>ULK1 Inhibition"]
    F["Protein Aggregate<br/>Accumulation"]
    G["Rapamycin/Torin<br/>mTORC1 Inhibitor"]
    H["Autophagy Induction<br/>Aggregate Clearance"]
    A --> B
    B --> C
    B --> D
    B --> E
    C --> F
    E --> F
    G --> H
    G -.->|"inhibits"| B
    style A fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
    style F fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
    style G fill:#1a237e,stroke:#4fc3f7,color:#4fc3f7
    style H fill:#1b5e20,stroke:#81c784,color:#81c784

⚖️ Evidence

⚖️ Evidence Matrix3 supports2 contradicts
Supports
Trehalose inhibits mTORC1 signaling
Supports
TFEB S211 phosphorylation by mTORC1 prevents nuclear translocation
Supports
Calcineurin dephosphorylates TFEB upon mTORC1 dissociation
Contradicts
Mechanism remains incompletely articulated in source debate
Contradicts
Does not fully explain calcium specificity of the response
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — MTOR

No curated PDB or AlphaFold mapping for MTOR 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 mTOR →

No DepMap CRISPR Chronos data found for mTOR.

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
▼ 1.4%
Volatility
Low
0.0033
Events (7d)
4
Price History
▼12.0%

💾 Resource Usage

LLM Tokens
13,400
$0.0402
Total Cost
$0.0402

🔮 Predictions

🔎 Predictions vs Observations2 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
IF young adult mice (C57BL/6, 8-12 weeks) with established AAV9-mediated expression of TFEB-S211A (phosphorylation-mimicking mutant) in cortical neurons receive daily intraperitoneal trehalose injectiTFEB-S211A mutation will block trehalose-induced nuclear translocation and target gene expression (MAP1LC3B, CTSB), while WT TFEB will translocate and activate — no observation —pending0.55
IF primary mouse cortical neurons or SH-SY5Y neuroblastoma cells are pretreated with calcineurin inhibitors (FK506 at 1 μM or cyclosporine A at 5 μM) for 30 minutes before exposure to 50 mM trehalose Nuclear TFEB protein levels will decrease significantly in calcineurin-inhibited cells after trehalose treatment, indicating calcineurin is necessary for TFEB n— no observation —pending0.65
🔮 Falsifiable Predictions (2)
pendingconf 65%
IF primary mouse cortical neurons or SH-SY5Y neuroblastoma cells are pretreated with calcineurin inhibitors (FK506 at 1 μM or cyclosporine A at 5 μM) for 30 minutes before exposure to 50 mM trehalose for 4 hours, THEN nuclear TFEB levels will be reduced by >50% compared to trehalose-only controls, a
Predicted outcome: Nuclear TFEB protein levels will decrease significantly in calcineurin-inhibited cells after trehalose treatment, indicating calcineurin is necessary
Falsification: Nuclear TFEB levels in calcineurin inhibitor + trehalose condition remain within 20% of trehalose-only condition, indicating calcineurin is dispensable for trehalose-induced TFEB activation.
pendingconf 55%
IF young adult mice (C57BL/6, 8-12 weeks) with established AAV9-mediated expression of TFEB-S211A (phosphorylation-mimicking mutant) in cortical neurons receive daily intraperitoneal trehalose injections (2 g/kg) for 14 days, THEN TFEB nuclear translocation measured by chromatin immunoprecipitation
Predicted outcome: TFEB-S211A mutation will block trehalose-induced nuclear translocation and target gene expression (MAP1LC3B, CTSB), while WT TFEB will translocate and
Falsification: TFEB-S211A-expressing mice show equivalent nuclear translocation and target gene activation as WT TFEB mice after trehalose treatment, disproving the requirement for S211 dephosphorylation in this pat

📖 References (1)

  1. Trehalose induces autophagy via lysosomal-mediated TFEB activation in models of motoneuron degeneration.
    Rusmini P et al.. Autophagy (2019)
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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