ID: h-a00d94b8c8
Hypothesis

Synaptic RNA Metabolism Dysregulation

Synaptic RNA Metabolism Dysregulation starts from the claim that modulating TARDBP within the disease context of neurodegeneration can redirect a disease-relevant process.
🧬 TARDBP🩺 neurodegeneration🎯 Composite 62%💱 $0.56▼9.9%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 3 support 2 oppose
✓ All Quality Gates Passed
Mechanistic 0.75 (15%) Evidence 0.75 (15%) Novelty 0.65 (12%) Feasibility 0.62 (12%) Impact 0.72 (12%) Druggability 0.65 (10%) Safety 0.35 (8%) Competition 0.55 (6%) Data Avail. 0.60 (5%) Reproducible 0.58 (5%) KG Connect 0.50 (8%) 0.620 composite

🧪 Overview

Mechanistic Overview


Synaptic RNA Metabolism Dysregulation starts from the claim that modulating TARDBP within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview Synaptic RNA Metabolism Dysregulation starts from the claim that modulating TARDBP within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview Synaptic RNA Metabolism Dysregulation starts from the claim that Cytoplasmic TDP-43 accumulation in AD neurons disrupts normal nuclear function while sequestering target mRNAs at synapses, impairing local protein synthesis critical for synaptic plasticity. Pathological S409/410 phosphorylation alters RNA binding affinity, mislocalizing synaptic transcripts including glutamate receptors (GRIA1, GRIA2) and scaffold proteins (PSD-95/DLG4), leading to synaptic failure independent of amyloid burden. Framed more explicitly, the hypothesis centers TARDBP within the broader disease setting of neurodegeneration.

...

🧬 Mechanism

🧬 Curated Mechanism Pathway

Curated pathway from expert analysis

flowchart TD
    A["TDP-43 (TARDBP) Mislocalization<br/>Cytoplasmic Aggregation"]
    B["Nuclear RNA Processing Failure<br/>Cryptic Exon Inclusion"]
    C["Synaptic mRNA Dysregulation<br/>STMN2 / UNC13A Loss"]
    D["Synaptic Vesicle Docking Failure<br/>Reduced Neurotransmission"]
    E["Dendritic Spine Retraction<br/>Excitatory Synapse Loss"]
    F["Motor / Cognitive Circuit Failure<br/>ALS / FTLD Phenotype"]
    A --> B
    B --> C
    C --> D
    D --> E
    E --> F
    style A fill:#7b1fa2,stroke:#ce93d8,color:#ce93d8
    style F fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a

⚖️ Evidence

⚖️ Evidence Matrix3 supports2 contradicts
Supports
TDP-43 pathology correlates with synaptic loss independent of amyloid burden
Supports
TDP-43 knockout mice show synaptic dysfunction and behavioral deficits
Supports
ASO development pathway for TDP-43 established in ALS (Qodyplamastat programs)
Contradicts
AD neurons often retain nuclear TDP-43 unlike ALS/FTLD—nuclear clearance is incomplete
Contradicts
Complete TDP-43 reduction is embryonically lethal—narrow therapeutic window
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — TARDBP

🧬 PDB 4BS2 Click to expand

Experimental structure from RCSB PDB | Powered by Mol*

🧠 GTEx v10 Brain ExpressionJSON

Median TPM across 13 brain regions for TARDBP from GTEx v10.

Cerebellar Hemisphere131 Cerebellum115median 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 TARDBP →

No DepMap CRISPR Chronos data found for TARDBP.

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
▼ 0.5%
Volatility
Low
0.0027
Events (7d)
2
Price History
▼9.9%

💾 Resource Usage

LLM Tokens
13,612
$0.0408
Total Cost
$0.0408

🔮 Predictions

🔎 Predictions vs Observations2 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
IF we perform CRISPR-mediated nuclear tethering of TDP-43 (fusion to SUN1 or Asl1 nuclear localization sequence) in human iPSC-derived neurons from AD patients carrying MAPT/TARDBP risk variants, THEN≥40% increase in dendritic spine density and restored GRIA1/GRIA2 protein synthesis rates in nuclear-tethered TDP-43 neurons relative to wild-type controls unde— no observation —pending0.65
IF we administer a CK1δ/GSK3β inhibitor (e.g., SR-3029) to 6-month-old 5xFAD;TARDBP S409/410A mutant mice for 4 weeks to prevent pathological TDP-43 phosphorylation, THEN synaptic dendritic protein le≥30% increase in synaptic GRIA1, GRIA2, and DLG4 protein and mRNA levels in the phosphorylation-blocked group relative to vehicle controls within 4 weeks of inh— no observation —pending0.72
🔮 Falsifiable Predictions (2)
pendingconf 72%
IF we administer a CK1δ/GSK3β inhibitor (e.g., SR-3029) to 6-month-old 5xFAD;TARDBP S409/410A mutant mice for 4 weeks to prevent pathological TDP-43 phosphorylation, THEN synaptic dendritic protein levels of GRIA1 and DLG4 will increase by ≥30% compared to vehicle-treated 5xFAD;TARDBP S409/410A mice
Predicted outcome: ≥30% increase in synaptic GRIA1, GRIA2, and DLG4 protein and mRNA levels in the phosphorylation-blocked group relative to vehicle controls within 4 we
Falsification: No significant difference (p>0.05) in synaptic glutamate receptor or scaffold protein levels between kinase inhibitor-treated and vehicle-treated mutants, indicating TDP-43 phosphorylation is not the
pendingconf 65%
IF we perform CRISPR-mediated nuclear tethering of TDP-43 (fusion to SUN1 or Asl1 nuclear localization sequence) in human iPSC-derived neurons from AD patients carrying MAPT/TARDBP risk variants, THEN nuclear-targeted TDP-43 neurons will show normalized GRIA1/GRIA2 translation and rescued synaptic c
Predicted outcome: ≥40% increase in dendritic spine density and restored GRIA1/GRIA2 protein synthesis rates in nuclear-tethered TDP-43 neurons relative to wild-type con
Falsification: Nuclear tethering of TDP-43 fails to rescue synaptic protein synthesis and spine density, demonstrating that cytoplasmic mislocalization is not causally linked to synaptic failure but rather reflects

📖 References (4)

  1. TDP-43 Pathology in Alzheimer's Disease.
    Meneses A et al.. Mol Neurodegener (2021)
  2. A quantitative TaqMan PCR assay for the detection of Ureaplasma diversum.
    ["Marques et al.. Veterinary microbiology (2013)
  3. Association analysis in a Latin American population revealed ethnic differences in rheumatoid arthritis-associated SNPs in Caucasian and Asian populations.
    ["Castro-Santos et al.. Scientific reports (2020)
  4. Juvenile hormone-dopamine systems for the promotion of flight activity in males of the large carpenter bee Xylocopa appendiculata.
    ["Sasaki et al.. Die Naturwissenschaften (2013)
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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