ID: h-6e76ba3638
Hypothesis

TOM/TIM Complex Disruption Triggering Mitochondrial Integrated Stress Response (mtISR)

TOM/TIM Complex Disruption Triggering Mitochondrial Integrated Stress Response (mtISR) starts from the claim that modulating TOMM40, TOMM70, CLPP within the disease context of neurodegeneration can redirect a disease-relevant process.
🧬 TOMM40, TOMM70, CLPP🩺 neurodegeneration🎯 Composite 62%💱 $0.56▼9.3%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 3 support 4 oppose
✓ All Quality Gates Passed
Mechanistic 0.58 (15%) Evidence 0.55 (15%) Novelty 0.82 (12%) Feasibility 0.58 (12%) Impact 0.62 (12%) Druggability 0.45 (10%) Safety 0.68 (8%) Competition 0.85 (6%) Data Avail. 0.52 (5%) Reproducible 0.55 (5%) KG Connect 0.50 (8%) 0.622 composite

🧪 Overview

Mechanistic Overview


TOM/TIM Complex Disruption Triggering Mitochondrial Integrated Stress Response (mtISR) starts from the claim that modulating TOMM40, TOMM70, CLPP within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview TOM/TIM Complex Disruption Triggering Mitochondrial Integrated Stress Response (mtISR) starts from the claim that modulating TOMM40, TOMM70, CLPP within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview TOM/TIM Complex Disruption Triggering Mitochondrial Integrated Stress Response (mtISR) starts from the claim that Pathological TDP-43 species bind TOM/TIM translocase components, impairing import of nuclear-encoded mitochondrial proteins. Accumulated misfolded proteins in the intermembrane space trigger CHOP-mediated mPTP sensitization. This mechanism leverages the 2024 physical interaction data (PMID:38245738) and connects TDP-43's established aggregation properties to a specific mitochondrial stress pathway.

...

🧬 Mechanism

🧬 Curated Mechanism Pathway

Curated pathway from expert analysis

flowchart TD
    A["TARDBP/TDP-43<br/>Nuclear RNA-Binding Protein"]
    B["Stress or Mutation<br/>ALS/FTD Trigger"]
    C["TDP-43 Mislocalization<br/>Cytoplasmic Accumulation"]
    D["Nuclear TDP-43 Depletion<br/>Cryptic Exon Inclusion"]
    E["TDP-43 Aggregates<br/>Ubiquitin+ Phospho+ Inclusions"]
    F["Splicing Dysregulation<br/>STMN2/UNC13A Targets"]
    G["Synaptic Failure<br/>Motor Neuron Degeneration"]
    A --> B
    B --> C
    C --> D
    C --> E
    D --> F
    E --> G
    F --> G
    style A fill:#1a237e,stroke:#4fc3f7,color:#4fc3f7
    style C fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
    style G fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a

⚖️ Evidence

⚖️ Evidence Matrix3 supports4 contradicts
Supports
TDP-43 physically interacts with mitochondrial import machinery (2024 proximity labeling)
Supports
Impaired protein import activates mtISR and sensitizes to mPTP
Supports
Bcl-2 family proteins regulating mPTP require correct mitochondrial targeting
Contradicts
Physical interaction does not equal functional impairment of transport
Contradicts
CHOP involvement in mPTP regulation is context-dependent and contested
Contradicts
If import disruption were primary, bioenergetic deficits would precede cGAS/STING activation—temporal data suggests immune activation is early event
Contradicts
Impaired import typically causes global mitochondrial dysfunction preceding selective mtDNA release; specificity argument weakens mechanism
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — TOMM40

No curated PDB or AlphaFold mapping for TOMM40 yet. Search RCSB →

🧠 GTEx v10 Brain ExpressionJSON

Median TPM across 13 brain regions for TOMM40, TOMM70, CLPP from GTEx v10.

Cerebellar Hemisphere40.2 Cerebellum38.3 Frontal Cortex BA928.3 Cortex25.9 Hypothalamus20.7 Anterior cingulate cortex BA2419.4 Substantia nigra17.7 Spinal cord cervical c-117.3 Nucleus accumbens basal ganglia17.1 Caudate basal ganglia16.9 Hippocampus16.0 Putamen basal ganglia16.0 Amygdala14.0median TPM (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.

🔍 Search ClinVar for TOMM40, TOMM70, CLPP →

No DepMap CRISPR Chronos data found for TOMM40, TOMM70, CLPP.

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
▼ 0.5%
Volatility
Low
0.0035
Events (7d)
2
Price History
▼9.3%

💾 Resource Usage

LLM Tokens
15,840
$0.0475
Total Cost
$0.0475

🔮 Predictions

🔎 Predictions vs Observations2 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
IF TOMM40 or TOMM70 are conditionally deleted (CreERT2-mediated, 2mg tamoxifen i.p., 5 consecutive days) in neurons of a TDP-43 A315T knock-in mouse model, THEN mitochondrial calcium retention capacit>40% decrease in mitochondrial calcium retention capacity; >20% reduction in survival time— no observation —pending0.55
IF TOMM40/TOMM70 are genetically knocked down (siRNA, 20nM, 72h) in iPSC-derived cortical neurons from ALS/FTD patients with TDP-43 pathology, THEN mitochondrial protein import efficiency will decreas30% reduction in mitochondrial protein import efficiency; 2-fold increase in CHOP expression— no observation —pending0.62
🔮 Falsifiable Predictions (2)
pendingconf 62%
IF TOMM40/TOMM70 are genetically knocked down (siRNA, 20nM, 72h) in iPSC-derived cortical neurons from ALS/FTD patients with TDP-43 pathology, THEN mitochondrial protein import efficiency will decrease by >30% (measured via mitochondria-targeted reporter assays) and CHOP protein levels will increase
Predicted outcome: 30% reduction in mitochondrial protein import efficiency; 2-fold increase in CHOP expression
Falsification: No significant change in protein import efficiency (<10% decrease) OR no increase in CHOP expression (<1.5-fold) despite successful TOMM40/TOMM70 knockdown would falsify the proposed mechanism linking
pendingconf 55%
IF TOMM40 or TOMM70 are conditionally deleted (CreERT2-mediated, 2mg tamoxifen i.p., 5 consecutive days) in neurons of a TDP-43 A315T knock-in mouse model, THEN mitochondrial calcium retention capacity will decrease by >40% (measured via Ca2+-sensitive probes) and disease-onset survival will decreas
Predicted outcome: >40% decrease in mitochondrial calcium retention capacity; >20% reduction in survival time
Falsification: Mitochondrial calcium retention capacity remains unchanged (<10% decrease) OR survival is unaffected (no difference in median survival) would falsify the claim that TOM/TIM complex disruption sensitiz

📖 References (3)

  1. The quest for Homer's moly: exploring the potential of an early ethnobotanical complex.
    ["Molina-Venegas et al.. Journal of ethnobiology and ethnomedicine (2024)
  2. Laboratory stewardship should be a priority in every hospital.
    ["Reddy et al.. Cleveland Clinic journal of medicine (2022)
  3. TDP-43 Triggers Mitochondrial DNA Release via mPTP to Activate cGAS/STING in ALS.
    Yu CH et al.. Cell (2020)
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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