🧪
hypothesis

TDP-43 Proteinopathy as a Cross-Disease Pathological Substrate

Hypothesis

TDP-43 Proteinopathy as a Cross-Disease Pathological Substrate

TDP-43 misfolding and aggregation occurs as primary pathology in ALS/FTD (~95% and ~50% respectively) and as secondary pathology in AD (LATE-ND, 20-50%) and PD (10-15%).
🧬 TARDBP, TIA1, UBQLN2, CHCHD10🩺 neurodegeneration🎯 Composite 76%💱 $0.61▼18.9%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 4 support 3 oppose
✓ All Quality Gates Passed
Mechanistic 0.65 (15%) Evidence 0.75 (15%) Novelty 0.60 (12%) Feasibility 0.68 (12%) Impact 0.65 (12%) Druggability 0.55 (10%) Safety 0.50 (8%) Competition 0.65 (6%) Data Avail. 0.75 (5%) Reproducible 0.70 (5%) KG Connect 0.50 (8%) 0.760 composite
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Composite76%

🧪 Overview

TDP-43 misfolding and aggregation occurs as primary pathology in ALS/FTD (~95% and ~50% respectively) and as secondary pathology in AD (LATE-ND, 20-50%) and PD (10-15%). The investable thesis is NOT pan-NDD unification but precision stratification: TDP-43-positive ALS/FTD and LATE-ND subgroups. ASOs, aggregation blockers, and nuclear localization stabilizers are viable approaches. The tofersen precedent (accelerated approval for SOD1-ALS based on NfL reduction) demonstrates biomarker-driven development is feasible.

🧬 Mechanism

🔗 Mechanism from KG for TARDBP, TIA1, UBQLN2, CHCHD10

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
TDP-43 inclusions define pathology in ~95% ALS and ~50% FTD cases
PMID:17077305
Supports
50+ TARDBP mutations identified causing ALS/FTD
PMID:18539960
Supports
CSF TDP-43 seed amplification assay shows 67% sensitivity in TDP-43-linked symptomatic patients
PMID:41399249
Supports
TDP-43 aggregation in LATE-ND associates with faster cognitive decline in AD
PMID:31321539
Contradicts
TARDBP mutations do not cause AD or PD; mechanism does not generalize upstream
PMID:Familial AD/PD cohort studies
Contradicts
50-85% of PD cases lack TDP-43 pathology; cannot be unifying mechanism
PMID:19251658
Contradicts
TDP-43 KO mice develop only subtle phenotypes compared to disease models
PMID:Conditional KO studies
📖 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*

💉 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, TIA1, UBQLN2, CHCHD10 →

No DepMap CRISPR Chronos data found for TARDBP, TIA1, UBQLN2, CHCHD10.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

🏆 Tournament

🏆 Arenas / Elo

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📊 Market Indicators

7d Trend
Falling
7d Momentum
▼ 1.5%
Volatility
Low
0.0026
Events (7d)
3
Price History
▼18.9%

💾 Resource Usage

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

🔮 Predictions

🔎 Predictions vs Observations2 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
IF patients with LATE neuropathological change (LATE-NC) are stratified using CSF pTDP-43 levels (upper tertile, >75th percentile) and plasma NfL (>150 pg/mL) as dual inclusion criteria and treated wi≥30% reduction in annualized hippocampal atrophy rate; ≥0.5 point improvement or stabilization in CDR-SB at 18 months— no observation —pending0.35
IF an antisense oligonucleotide targeting TARDBP mRNA (designed to reduce TDP-43 protein expression by >50%) is administered monthly for 12 months to patients with TDP-43-positive ALS (CSF pTDP-43 >2 ≥40% relative reduction in plasma NfL at 12 months; ≥25% slowing in ALSFRS-R progression rate— no observation —pending0.45
🔮 Falsifiable Predictions (2)
pendingconf 45%
IF an antisense oligonucleotide targeting TARDBP mRNA (designed to reduce TDP-43 protein expression by >50%) is administered monthly for 12 months to patients with TDP-43-positive ALS (CSF pTDP-43 >2 SD above age-matched controls), THEN plasma neurofilament light chain (NfL) concentration will demon
Predicted outcome: ≥40% relative reduction in plasma NfL at 12 months; ≥25% slowing in ALSFRS-R progression rate
Falsification: Plasma NfL shows no significant reduction (<20%) or increases relative to placebo; ALSFRS-R decline accelerates or shows no difference from placebo; serious adverse events occur in >15% of treatment a
pendingconf 35%
IF patients with LATE neuropathological change (LATE-NC) are stratified using CSF pTDP-43 levels (upper tertile, >75th percentile) and plasma NfL (>150 pg/mL) as dual inclusion criteria and treated with an aggregation blocker (e.g., small molecule targeting TDP-43 liquid-liquid phase separation) for
Predicted outcome: ≥30% reduction in annualized hippocampal atrophy rate; ≥0.5 point improvement or stabilization in CDR-SB at 18 months
Falsification: Hippocampal atrophy rate shows no significant difference from untreated LATE-NC cohort (≥10% faster than historical control); CDR-SB worsens by >1.5 points; treatment-related serious adverse events oc
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