ID: h-ed41a306c5
Hypothesis

VDAC1 Hyper-Oligomerization via Direct TDP-43 Binding

VDAC1 Hyper-Oligomerization via Direct TDP-43 Binding starts from the claim that modulating VDAC1, VDAC2 within the disease context of neurodegeneration can redirect a disease-relevant process.
🧬 VDAC1, VDAC2🩺 neurodegeneration🎯 Composite 50%💱 $0.52▲4.9%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 3 support 4 oppose
✓ All Quality Gates Passed
Mechanistic 0.40 (15%) Evidence 0.45 (15%) Novelty 0.70 (12%) Feasibility 0.38 (12%) Impact 0.48 (12%) Druggability 0.55 (10%) Safety 0.62 (8%) Competition 0.65 (6%) Data Avail. 0.48 (5%) Reproducible 0.45 (5%) KG Connect 0.50 (8%) 0.496 composite

🧪 Overview

Mechanistic Overview


VDAC1 Hyper-Oligomerization via Direct TDP-43 Binding starts from the claim that modulating VDAC1, VDAC2 within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview VDAC1 Hyper-Oligomerization via Direct TDP-43 Binding starts from the claim that modulating VDAC1, VDAC2 within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview VDAC1 Hyper-Oligomerization via Direct TDP-43 Binding starts from the claim that TDP-43 contains intrinsically disordered regions capable of bridging VDAC monomers, stabilizing high-conductance channels that increase basal mitochondrial permeability. This mechanism leverages TDP-43's phase separation properties to propose direct pore formation. However, VDAC is outer mitochondrial membrane (OMM)-localized while mPTP is inner mitochondrial membrane (IMM)-localized, creating a fundamental compartmental incoherence that undermines the hypothesis. Framed more explicitly, the hypothesis centers VDAC1, VDAC2 within the broader disease setting of neurodegeneration.

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🧬 Mechanism

🧬 Curated Mechanism Pathway

Curated pathway from expert analysis

graph TD
    A["TDP-43 cytoplasmic aggregation"] --> B["Direct VDAC1 and VDAC2 binding"]
    B --> C["VDAC1 hyper-oligomerization on outer mitochondrial membrane"]
    C --> D["Increased mitochondrial membrane permeability"]
    D --> E["Cytochrome c release into cytoplasm"]
    E --> F["Caspase activation and apoptosis"]

⚖️ Evidence

⚖️ Evidence Matrix3 supports4 contradicts
Supports
VDAC1 oligomerization can form mtDNA-permeable pores
Supports
TDP-43 has liquid-liquid phase separation properties capable of membrane protein clustering
Supports
VDAC1 implicated in ALS genetic risk
Contradicts
VDAC1 is OMM-localized; mPTP is IMM-localized. mtDNA cannot exit through VDAC pores without IMM compromise
Contradicts
Source paper (Cell 2020) attributes mtDNA release to CypD-sensitive mPTP (IMM pore), not VDAC
Contradicts
mtDNA passage requires both IMM and OMM permeability—physically incoherent without additional mechanisms
Contradicts
No evidence TDP-43 scaffolds membrane proteins in mitochondria specifically
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — VDAC1

No curated PDB or AlphaFold mapping for VDAC1 yet. Search RCSB →

🧠 GTEx v10 Brain ExpressionJSON

Median TPM across 13 brain regions for VDAC1, VDAC2 from GTEx v10.

Frontal Cortex BA9190 Cerebellar Hemisphere142 Cortex128 Anterior cingulate cortex BA24125 Nucleus accumbens basal ganglia124 Cerebellum120 Hypothalamus117 Caudate basal ganglia113 Amygdala86.7 Putamen basal ganglia86.3 Substantia nigra83.8 Spinal cord cervical c-181.2 Hippocampus78.6median 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 VDAC1, VDAC2 →

No DepMap CRISPR Chronos data found for VDAC1, VDAC2.

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
▼ 0.2%
Volatility
Low
0.0107
Events (7d)
2
Price History
▲4.9%

💾 Resource Usage

LLM Tokens
15,840
$0.0475
Total Cost
$0.0475

🔮 Predictions

🔎 Predictions vs Observations2 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
IF VDAC1 hyper-oligomerization drives neurodegeneration through increased basal mitochondrial permeability, THEN blocking VDAC1 oligomerization with a targeted peptide (e.g., VDAC1 N-terminal targetinRestoration of ΔΨm to ≥85% of baseline and ≥40% reduction in Annexin V+ cell population— no observation —pending0.28
IF TDP-43 directly binds VDAC1 to induce hyper-oligomerization, THEN acute overexpression of TDP-43 in human iPSC-derived neurons will increase mitochondrial permeability (measured by calcein-quench aIncrease in mitochondrial permeability signal by ≥30% and detectable TDP-43:VDAC1 complex in co-IP assay— no observation —pending0.35
🔮 Falsifiable Predictions (2)
pendingconf 35%
IF TDP-43 directly binds VDAC1 to induce hyper-oligomerization, THEN acute overexpression of TDP-43 in human iPSC-derived neurons will increase mitochondrial permeability (measured by calcein-quench assays) by ≥30% within 48 hours, with co-immunoprecipitation confirming physical interaction between
Predicted outcome: Increase in mitochondrial permeability signal by ≥30% and detectable TDP-43:VDAC1 complex in co-IP assay
Falsification: If mitochondrial permeability remains within baseline range (±10%) despite TDP-43 overexpression, OR if co-IP fails to detect TDP-43:VDAC1 interaction across three independent preparations, the direct
pendingconf 28%
IF VDAC1 hyper-oligomerization drives neurodegeneration through increased basal mitochondrial permeability, THEN blocking VDAC1 oligomerization with a targeted peptide (e.g., VDAC1 N-terminal targeting peptide) in TDP-43 aggregate-bearing neurons will preserve mitochondrial membrane potential (ΔΨm)
Predicted outcome: Restoration of ΔΨm to ≥85% of baseline and ≥40% reduction in Annexin V+ cell population
Falsification: If mitochondrial membrane potential and Annexin V+ cell counts show no significant difference (p>0.05) between VDAC1-blocking treatment and vehicle control in TDP-43 aggregate neurons, the hypothesis

📖 References (4)

  1. Major subpopulations of Plasmodium falciparum in sub-Saharan Africa.
    ["Amambua-Ngwa et al.. Science (New York, N.Y.) (2019)
  2. The quest for Homer's moly: exploring the potential of an early ethnobotanical complex.
    ["Molina-Venegas et al.. Journal of ethnobiology and ethnomedicine (2024)
  3. LPS-induced CXCR7 expression promotes gastric Cancer proliferation and migration via the TLR4/MD-2 pathway.
    ["Li et al.. Diagnostic pathology (2019)
  4. 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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