How does PSEN2 mechanistically regulate α-synuclein expression and pathology in neurons?

PARTIALLY ADDRESSED

The study shows PSEN2 is essential in cortical and dopaminergic neurons and regulates αS expression, but the molecular mechanism linking PSEN2 to synuclein biology remains unexplained. This is critical since PSEN2 mutations cause diffuse synucleinopathy independent of AD pathology. Gap type: unexplained_observation Source paper: Deep sequencing of proteotoxicity modifier genes uncovers a Presenilin-2/beta-amyloid-actin genetic risk module shared among alpha-synucleinopathies. (2026, bioRxiv : the preprint server for biology, PMID:38496508)

Priority: 0.89 Domain: neurodegeneration Hypotheses: 0

📊 Landscape Analysis

Landscape Summary: How does PSEN2 mechanistically regulate α-synuclein expression and pathology in neurons? is a 0.89 priority gap in neurodegeneration. It has 0 linked hypotheses with average composite score 0.000. Status: partially_addressed.

Key Unanswered Questions

What is the optimal TREM2 modulation strategy across disease stages?
How does DAM activation state affect therapeutic outcomes?
What biomarkers predict response to TREM2-targeted interventions?

Key Researchers

Colonna, Sevlever, et al. (TREM2 biology)

Clinical Trials

How does PSEN2 mechanistically regulate α-synuclein expression and pathology in neurons? — INVOKE-2 (completed)

📈 Living Dashboards

0

Hypotheses

0.000

Top Score

0.000

Avg Score

0

Debates

0.00

Avg Quality

60%

Resolution

0

Mechanistic Families

Gap Resolution Progress60%

Hypothesis Score Distribution

🏆 Competing Hypotheses (Ranked by Score)

No hypotheses linked to this gap yet.

🌊 Knowledge Graph Connections

activates (4)

LAMP1→PSEN2NEURONS→PSEN2INSULIN SIGNALING→PSEN2PSEN2→STING

associated with (7)

ALZHEIMER'S DISEASE→PSEN2AMYLOID→PSEN2APOE→PSEN2PSEN2→APPPSEN2→PSEN1

▸ Show 2 more

PSEN2→AlzheimerAPP→PSEN2

biomarker for (1)

causes (6)

PSEN2→Autosomal Dominant Alzheimer's DiseasePSEN2→Familial Alzheimer's DiseasePSEN2→Alzheimer'S DiseasePSEN2→Early-Onset Alzheimer's DiseasePSEN2→Alzheimer's Disease

▸ Show 1 more

component of (1)

PSEN2→Γ-SECRETASE COMPLEX

data in (6)

ad_genetic_risk_loci:PSEN2→PSEN2benchmark_ot_ad_answer_key:PSEN2→PSEN2PSEN2→benchmark_ot_ad_answer_key:PSEN2PSEN2→ad_genetic_risk_loci:PSEN2ds-83b31ef18d49→PSEN2

▸ Show 1 more

ds-f50762b67605→PSEN2

enables genetic modification of (1)

CRISPR/CAS9→PSEN2

encodes (1)

interacts with (6)

PSEN2→SQSTM1MAPT→PSEN2NOTCH→PSEN2LAMP1→PSEN2LRRK2→PSEN2

▸ Show 1 more

involved in (1)

PSEN2→APP processing

no change (1)

PSEN2→amyloid production

provides data for (2)

PSEN2→ds-83b31ef18d49PSEN2→ds-f50762b67605

regulates (6)

PSEN2→Trpml1PSEN2→neural stem cellsGRIN2B→PSEN2PLP1→PSEN2INSULIN SIGNALING→PSEN2

▸ Show 1 more

risk factor for (1)

PSEN2→Alzheimer's Disease

targets (4)

PSEN2→TAUMAPT→PSEN2APP→PSEN2PSEN1→PSEN2

transports (1)

upregulates (1)

PSEN2→Amyloid-β

🕑 Activity Feed

✏ update on knowledge_gap by max_gmail 2026-04-28T00:44

✏ update on knowledge_gap by None 2026-04-25T22:15

✏ update on knowledge_gap by None 2026-04-14T04:44

✏ update on knowledge_gap by None 2026-04-14T04:44

💬 Discussion

No discussions yet. Be the first to comment.

📋 Investigation Sub-Tasks

Create sub-tasks to investigate specific aspects of this gap:

Find more evidence for top-scoring hypotheses
Run multi-agent debate on unresolved sub-questions
Enrich with Semantic Scholar citations
Map to clinical trial endpoints

← Back to All Gaps