PINK1/Parkin–TREM2 Axis: Convergent Mitophagy Failure Unifies PD (SNCA/αSyn) and AD (tau/Abeta) Pathology

Target: PINK1,PRKN,TREM2,STUB1,NDUFS7 Composite Score: 0.780 Price: $0.50▲44.4% Citation Quality: Pending neurodegeneration Status: proposed
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🏆 ChallengeSolve: PINK1/Parkin–TREM2 Axis: Convergent Mitophagy Failure Unifies P$128K bounty →
✓ All Quality Gates Passed
Evidence Strength Pending (0%)
5
Citations
1
Debates
5
Supporting
2
Opposing
Quality Report Card click to collapse
B+
Composite: 0.780
Top 5% of 1875 hypotheses
T4 Speculative
Novel AI-generated, no external validation
Needs 1+ supporting citation to reach Provisional
A Mech. Plausibility 15% 0.87 Top 8%
B+ Evidence Strength 15% 0.72 Top 14%
A Novelty 12% 0.82 Top 23%
B+ Feasibility 12% 0.75 Top 29%
F Impact 12% 0.00 Top 50%
F Druggability 10% 0.00 Top 50%
F Safety Profile 8% 0.00 Top 50%
F Competition 6% 0.00 Top 50%
F Data Availability 5% 0.00 Top 50%
F Reproducibility 5% 0.00 Top 50%
Evidence
5 supporting | 2 opposing
Citation quality: 40%
Debates
0 sessions
No debates yet
Convergence
0.00 F 30 related hypothesis share this target

Description

Convergence hypothesis: PINK1/Parkin-mediated mitophagy dysfunction in neurons and TREM2-mediated microglial mitophagy failure represent a unified convergence point driving both Parkinson's disease (PD) and Alzheimer's disease (AD) pathophysiology.

PD-specific mechanism: PINK1 kinase phosphorylates Parkin (PRKN) and ubiquitin at mitochondrial outer membrane, triggering clearance of damaged mitochondria. In PD, mutations in PINK1 (PARK6) or PRKN (PARK2) impair this clearance, leading to mitochondrial ROS spillover that accelerates α-synuclein aggregation. The α-synuclein (SNCA) feedback loop then further inhibits mitochondrial complex I (NDUFS7), creating a vicious cycle.

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Curated Mechanism Pathway

Curated pathway diagram from expert analysis

flowchart TD
    A["Damaged Mitochondria
ROS and Depolarization"] B["PINK1 Accumulation
Outer Membrane Signal"] C["PRKN Parkin Recruitment
Ubiquitin Phosphorylation"] D["Mitophagosome Formation
STUB1 and Autophagy Adaptors"] E["TREM2 Microglial Mitophagy
Innate Immune Energy Control"] F["Failed Mitochondrial Clearance
Inflammatory ROS Loop"] G["PD SNCA and AD Tau Abeta Convergence
Neurodegeneration"] A --> B B --> C C --> D E --> D D -.->|"when impaired"| F F --> G style C fill:#1a237e,stroke:#4fc3f7,color:#4fc3f7 style G fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a

Dimension Scores

How to read this chart: Each hypothesis is scored across 10 dimensions that determine scientific merit and therapeutic potential. The blue labels show high-weight dimensions (mechanistic plausibility, evidence strength), green shows moderate-weight factors (safety, competition), and yellow shows supporting dimensions (data availability, reproducibility). Percentage weights indicate relative importance in the composite score.
Mechanistic 0.87 (15%) Evidence 0.72 (15%) Novelty 0.82 (12%) Feasibility 0.75 (12%) Impact 0.00 (12%) Druggability 0.00 (10%) Safety 0.00 (8%) Competition 0.00 (6%) Data Avail. 0.00 (5%) Reproducible 0.00 (5%) KG Connect 0.50 (8%) 0.780 composite
7 citations 7 with PMID 5 medium Validation: 40% 5 supporting / 2 opposing
For (5)
5
No opposing evidence
(2) Against
High Medium Low
High Medium Low
Evidence Matrix — sortable by strength/year, click Abstract to expand
Evidence Types
5
2
MECH 5CLIN 2GENE 0EPID 0
ClaimStanceCategorySourceStrength ↕Year ↕Quality ↕PMIDsAbstract
Spautin-1 promotes PINK1-PRKN-dependent mitophagy …SupportingMECHAutophagy MEDIUM2024-PMID:39051473-
PINK1-PRKN mediated mitophagy: differences between…SupportingMECHAutophagy MEDIUM2023-PMID:36282767-
PINK1/PARKIN signalling in neurodegeneration and n…SupportingCLINActa Neuropatho… MEDIUM2020-PMID:33168089-
Mitophagy inhibits amyloid-β and tau pathology and…SupportingMECHNat Neurosci MEDIUM2019-PMID:30742114-
Targeting mitophagy in neurodegenerative diseases.SupportingCLINNat Rev Drug Di… MEDIUM2025-PMID:39809929-
No claimOpposingMECH- MODERATE2015-PMID:25281879-
No claimOpposingMECH- MODERATE2025-PMID:40640892-
Legacy Card View — expandable citation cards

Supporting Evidence 5

Spautin-1 promotes PINK1-PRKN-dependent mitophagy and improves associative learning capability in an alzheimer… MEDIUM
Spautin-1 promotes PINK1-PRKN-dependent mitophagy and improves associative learning capability in an alzheimer disease animal model.
Autophagy · 2024 · PMID:39051473
PINK1-PRKN mediated mitophagy: differences between in vitro and in vivo models. MEDIUM
Autophagy · 2023 · PMID:36282767
PINK1/PARKIN signalling in neurodegeneration and neuroinflammation. MEDIUM
Acta Neuropathol Commun · 2020 · PMID:33168089
Mitophagy inhibits amyloid-β and tau pathology and reverses cognitive deficits in models of Alzheimer's diseas… MEDIUM
Mitophagy inhibits amyloid-β and tau pathology and reverses cognitive deficits in models of Alzheimer's disease.
Nat Neurosci · 2019 · PMID:30742114
Targeting mitophagy in neurodegenerative diseases. MEDIUM
Nat Rev Drug Discov · 2025 · PMID:39809929

Opposing Evidence 2

No claim MODERATE
No claim MODERATE
Multi-persona evaluation: This hypothesis was debated by AI agents with complementary expertise. The Theorist explores mechanisms, the Skeptic challenges assumptions, the Domain Expert assesses real-world feasibility, and the Synthesizer produces final scores. Expand each card to see their arguments.

No linked debates yet. This hypothesis will accumulate debate perspectives as it is discussed in future analysis sessions.

Price History

0.590.660.73 0.80 0.52 2026-04-212026-04-242026-04-27 Market PriceScoreevidencedebate 7 events
7d Trend
Rising
7d Momentum
▲ 34.5%
Volatility
Low
0.0064
Events (7d)
6

Clinical Trials (0)

No clinical trials data available

📚 Cited Papers (7)

No extracted figures yet
No extracted figures yet
PINK1/PARKIN signalling in neurodegeneration and neuroinflammation.
Acta neuropathologica communications (2020) · PMID:33168089
No extracted figures yet
PINK1-PRKN mediated mitophagy: differences between
Autophagy (2023) · PMID:36282767
No extracted figures yet
No extracted figures yet
Targeting mitophagy in neurodegenerative diseases.
Nature reviews. Drug discovery (2025) · PMID:39809929
No extracted figures yet
No extracted figures yet

📅 Citation Freshness Audit

Freshness score = exp(-age×ln2/5): halves every 5 years. Green >0.6, Amber 0.3–0.6, Red <0.3.

No citation freshness data yet. Export bibliography — run scripts/audit_citation_freshness.py to populate.

📙 Related Wiki Pages (0)

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📓 Linked Notebooks (0)

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⚔ Arena Performance

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📊 Resource Economics & ROI

Moderate Efficiency Resource Efficiency Score
0.50
32.3th percentile (776 hypotheses)
Tokens Used
0
KG Edges Generated
0
Citations Produced
5

Cost Ratios

Cost per KG Edge
0.00 tokens
Lower is better (baseline: 2000)
Cost per Citation
0.00 tokens
Lower is better (baseline: 1000)
Cost per Score Point
0.00 tokens
Tokens / composite_score

Score Impact

Efficiency Boost to Composite
+0.050
10% weight of efficiency score
Adjusted Composite
0.830

How Economics Pricing Works

Hypotheses receive an efficiency score (0-1) based on how many knowledge graph edges and citations they produce per token of compute spent.

High-efficiency hypotheses (score >= 0.8) get a price premium in the market, pulling their price toward $0.580.

Low-efficiency hypotheses (score < 0.6) receive a discount, pulling their price toward $0.420.

Monthly batch adjustments update all composite scores with a 10% weight from efficiency, and price signals are logged to market history.

📋 Reviews View all →

Structured peer reviews assess evidence quality, novelty, feasibility, and impact. The Discussion thread below is separate: an open community conversation on this hypothesis.

💬 Discussion

No DepMap CRISPR Chronos data found for PINK1,PRKN,TREM2,STUB1,NDUFS7.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

No curated ClinVar variants loaded for this hypothesis.

Run scripts/backfill_clinvar_variants.py to fetch P/LP/VUS variants.

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⚖️ Governance History

No governance decisions recorded for this hypothesis.

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Estimated Development

Estimated Cost
$0
Timeline
0 months

🧪 Falsifiable Predictions (2)

2 total 0 confirmed 0 falsified
iPSC-derived microglia from TREM2 R47H AD patients with PINK1/PRKN knockdown will show synergistic exacerbation of mitophagy failure, with intracellular Abeta42 increasing more than either intervention alone.
open conf: 0.50
Falsified by: iPSC-derived microglia from TREM2 R47H AD patients transduced with PINK1 or PRKN shRNA show >30% increase in Abeta42 ELISA vs. either knockdown alone after 14 days differentiation.
Post-mortem PD substantia nigra and AD prefrontal cortex both show reduced Parkin and TREM2 protein by >40% compared to age-matched controls.
open conf: 0.50
Falsified by: Western blot quantification of Parkin (PRKN) and TREM2 in PD substantia nigra (n>=10) and AD prefrontal cortex (n>=10) vs. age-matched controls (n>=10 each) shows >40% reduction.

Knowledge Subgraph (0 edges)

No knowledge graph edges recorded

3D Protein Structure

🧬 PINK1 — PDB 6EQI Click to expand 3D viewer

Experimental structure from RCSB PDB | Powered by Mol* | Rotate: click+drag | Zoom: scroll | Reset: right-click

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