🧪
hypothesis

Autophagy-Lysosomal Pathway Dysfunction as a Unifying Proteostasis Failure

Hypothesis

Autophagy-Lysosomal Pathway Dysfunction as a Unifying Proteostasis Failure

Impaired autophagic flux and lysosomal degradation capacity represents a convergent failure point across AD, PD, ALS, and FTD.
🧬 TFEB, GBA1, VPS35, TMEM175🩺 neurodegeneration🎯 Composite 82%💱 $0.62▼22.1%validated
EvidencePending (0%)📖 12 cit🗣 1 debates 4 support 3 oppose
⚠ Low Validation Senate Quality Gates →
Mechanistic 0.70 (15%) Evidence 0.78 (15%) Novelty 0.55 (12%) Feasibility 0.62 (12%) Impact 0.72 (12%) Druggability 0.60 (10%) Safety 0.58 (8%) Competition 0.70 (6%) Data Avail. 0.80 (5%) Reproducible 0.72 (5%) KG Connect 0.50 (8%) 0.820 composite
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arXiv PreprintNeurIPSNature MethodsPLOS ONE
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Composite82%

🧪 Overview

Impaired autophagic flux and lysosomal degradation capacity represents a convergent failure point across AD, PD, ALS, and FTD. Multiple druggable nodes exist: TFEB activation, GBA1 enhancement, TMEM175 modulation, and VPS35/retromer stabilization. Cross-disease genetic evidence (GBA1, VPS35, TMEM175, SORL1) and postmortem tissue validation support this mechanism. Best near-term path is biomarker-enriched trials in GBA1-PD or prodromal carriers. CNS druggability remains the primary development barrier.

🧬 Mechanism

🔗 Mechanism from KG for TFEB, GBA1, VPS35, TMEM175

Auto-built from this analysis's top knowledge-graph edges.

graph TD
    GBA1_mutations["GBA1 mutations"] -->|increases risk| PD["PD"]
    TREM2_R47H_variant["TREM2 R47H variant"] -->|increases risk| Ad["Ad"]
    alpha_synuclein_fibrils["alpha-synuclein fibrils"] -->|activates| NLRP3_Inflammasome["NLRP3 Inflammasome"]
    TFEB_overexpression["TFEB overexpression"] -.->|inhibits| tau_A__pathology["tau/Aβ pathology"]
    TARDBP_MUTATIONS["TARDBP MUTATIONS"] -->|causes| ALS_FTD["ALS/FTD"]
    TDP_43_INCLUSIONS["TDP-43 INCLUSIONS"] -->|associated with| ALS_FTD_1["ALS/FTD"]
    NfL_reduction["NfL reduction"] -->|biomarker for| als["als"]
    TARDBP["TARDBP"] -->|cross disease mech| ALS["ALS"]
    TARDBP_2["TARDBP"] -->|cross disease mech| FTD["FTD"]
    TARDBP_3["TARDBP"] -->|cross disease mech| AD_LATE["AD/LATE"]
    h_cross_synth_tdp43_rna_p["h-cross-synth-tdp43-rna-proteostasis"] -->|proposes shared me| TARDBP_4["TARDBP"]
    SNCA["SNCA"] -->|cross disease mech| PD_5["PD"]
    style GBA1_mutations fill:#ce93d8,stroke:#333,color:#000
    style PD fill:#ef5350,stroke:#333,color:#000
    style TREM2_R47H_variant fill:#ce93d8,stroke:#333,color:#000
    style Ad fill:#ef5350,stroke:#333,color:#000
    style alpha_synuclein_fibrils fill:#4fc3f7,stroke:#333,color:#000
    style NLRP3_Inflammasome fill:#ce93d8,stroke:#333,color:#000
    style TFEB_overexpression fill:#4fc3f7,stroke:#333,color:#000
    style tau_A__pathology fill:#4fc3f7,stroke:#333,color:#000
    style TARDBP_MUTATIONS fill:#ce93d8,stroke:#333,color:#000
    style ALS_FTD fill:#ef5350,stroke:#333,color:#000
    style TDP_43_INCLUSIONS fill:#4fc3f7,stroke:#333,color:#000
    style ALS_FTD_1 fill:#ef5350,stroke:#333,color:#000
    style NfL_reduction fill:#ce93d8,stroke:#333,color:#000
    style als fill:#ef5350,stroke:#333,color:#000
    style TARDBP fill:#4fc3f7,stroke:#333,color:#000
    style ALS fill:#ef5350,stroke:#333,color:#000
    style TARDBP_2 fill:#4fc3f7,stroke:#333,color:#000
    style FTD fill:#ef5350,stroke:#333,color:#000
    style TARDBP_3 fill:#4fc3f7,stroke:#333,color:#000
    style AD_LATE fill:#ef5350,stroke:#333,color:#000
    style h_cross_synth_tdp43_rna_p fill:#4fc3f7,stroke:#333,color:#000
    style TARDBP_4 fill:#4fc3f7,stroke:#333,color:#000
    style SNCA fill:#4fc3f7,stroke:#333,color:#000
    style PD_5 fill:#ef5350,stroke:#333,color:#000

⚖️ Evidence

⚖️ Evidence Matrix4 supports3 contradicts
Supports
TFEB overexpression reduces tau and Aβ pathology in 3xTg mice
PMID:26507055
Supports
GBA1 mutations confer 20x increased PD risk via lysosomal dysfunction
PMID:25296885
Supports
Declining lysosomal enzyme activity documented across NDDs in human postmortem tissue
PMID:29977472
Supports
VPS35 D620N mutation causes familial PD with impaired retromer function
PMID:23811924
Contradicts
Selective autophagy knockouts rarely cause disease-specific proteinopathies, only neurodegeneration broadly
PMID:Multiple conditional KO models
Contradicts
TMEM175 GWAS effect size modest (OR ~1.4-1.6), likely a modifier not core mechanism
PMID:29446782
Contradicts
Lysosomal enzyme declines are late-stage findings in postmortem tissue, cannot establish causation
PMID:End-stage pathology studies
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — TFEB

No curated PDB or AlphaFold mapping for TFEB 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 TFEB, GBA1, VPS35, TMEM175 →

No DepMap CRISPR Chronos data found for TFEB, GBA1, VPS35, TMEM175.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

🏆 Tournament

🏆 Arenas / Elo

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📊 Market Indicators

7d Trend
Falling
7d Momentum
▼ 1.8%
Volatility
Low
0.0029
Events (7d)
3
Price History
▼22.1%

💾 Resource Usage

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

🔮 Predictions

🔎 Predictions vs Observations2 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
IF TFEB nuclear translocation is induced via mTOR inhibition (rapamycin 2mg/kg i.p. 3x/week) in aged 3xTg-AD mice crossed with TMEM175 knockout mice for 12 weeks, THEN autophagic flux will increase (L≥40% reduction in insoluble phospho-tau (AT8) and normalized LC3-II/LC3-I ratio in cortical tissue within 12 weeks— no observation —pending0.61
IF GBA1 activity is pharmacologically enhanced (e.g., with ambroxol 600-1200 mg/day) in GBA1-associated Parkinson's disease patients for 6 months, THEN CSF glucocerebrosidase activity will increase by≥30% increase in CSF GCase activity and ≥25% reduction in plasma α-synuclein (Simoa) within 6 months of treatment— no observation —pending0.72
🔮 Falsifiable Predictions (2)
pendingconf 72%
IF GBA1 activity is pharmacologically enhanced (e.g., with ambroxol 600-1200 mg/day) in GBA1-associated Parkinson's disease patients for 6 months, THEN CSF glucocerebrosidase activity will increase by ≥30% and plasma α-synuclein levels will decrease by ≥25% relative to placebo.
Predicted outcome: ≥30% increase in CSF GCase activity and ≥25% reduction in plasma α-synuclein (Simoa) within 6 months of treatment
Falsification: CSF GCase activity fails to increase by ≥30%, or plasma α-synuclein fails to decrease by ≥25%, or Unified Parkinson's Disease Rating Scale (UPDRS) Part III worsens by ≥5 points relative to placebo
pendingconf 61%
IF TFEB nuclear translocation is induced via mTOR inhibition (rapamycin 2mg/kg i.p. 3x/week) in aged 3xTg-AD mice crossed with TMEM175 knockout mice for 12 weeks, THEN autophagic flux will increase (LC3-II/LC3-I ratio normalizes, p62 degrades) and soluble tau/phospho-tau will decrease by ≥40% compar
Predicted outcome: ≥40% reduction in insoluble phospho-tau (AT8) and normalized LC3-II/LC3-I ratio in cortical tissue within 12 weeks
Falsification: LC3-II/LC3-I ratio remains elevated (indicating impaired autophagosome clearance), p62 accumulates, and tau/phospho-tau levels do not decrease by ≥40%, indicating TFEB activation is insufficient to re
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