Stathmin-2 Splice Switching to Prevent Axonal Degeneration Across the ALS-FTD-AD Spectrum

Target: STMN2 (stathmin-2), PTBP1/PTBP2 Composite Score: 0.664 Price: $0.65▼0.8% Citation Quality: Pending neurodegeneration Status: promoted
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🟡 ALS / Motor Neuron Disease 🧠 Neurodegeneration
✓ All Quality Gates Passed
Quality Report Card click to collapse
B
Composite: 0.664
Top 3% of 512 hypotheses
T2 Supported
Literature-backed with debate validation
Needs convergence ≥0.40 (current: 0.00) for Established
A Mech. Plausibility 15% 0.85 Top 17%
A+ Evidence Strength 15% 0.90 Top 19%
B+ Novelty 12% 0.70 Top 65%
A Feasibility 12% 0.80 Top 25%
A Impact 12% 0.88 Top 18%
A Druggability 10% 0.85 Top 24%
B Safety Profile 8% 0.65 Top 31%
B+ Competition 6% 0.75 Top 45%
A+ Data Availability 5% 0.90 Top 15%
A Reproducibility 5% 0.85 Top 15%
Evidence
11 supporting | 5 opposing
Citation quality: 0%
Debates
1 session C+
Avg quality: 0.50
Convergence
0.00 F 30 related hypothesis share this target

From Analysis:

RNA binding protein dysregulation across ALS FTD AD

RNA binding protein dysregulation across ALS FTD AD

→ View full analysis & debate transcript

Hypotheses from Same Analysis (1)

These hypotheses emerged from the same multi-agent debate that produced this hypothesis.

TDP-43 Cryptic Exon–Targeted ASOs to Restore Hippocampal Gamma Oscillations
Score: 0.577 | Target: TARDBP (TDP-43) / cryptic splice sites in GABAergic transcripts (DLGAP1, KCNQ2, GABRA1)

→ View full analysis & all 2 hypotheses

Description

TDP-43 loss-of-function causes inclusion of a poison exon in STMN2 mRNA, leading to motor neuropathy and contributing to hippocampal axonal dysfunction. Splice-switching oligonucleotides or small molecules that sterically block the poison exon splice site restore STMN2 expression, prevent axonal degeneration, and preserve synaptic connectivity.

Mechanistic Pathway Diagram


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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 0.85 (15%) Evidence 0.90 (15%) Novelty 0.70 (12%) Feasibility 0.80 (12%) Impact 0.88 (12%) Druggability 0.85 (10%) Safety 0.65 (8%) Competition 0.75 (6%) Data Avail. 0.90 (5%) Reproducible 0.85 (5%) 0.664 composite
16 citations 16 with PMID 5 medium Validation: 0% 11 supporting / 5 opposing
Evidence Matrix — sortable by strength/year, click Abstract to expand
ClaimTypeSourceStrength ↕Year ↕PMIDsAbstract
TDP-43 mediates proper STMN2 mRNA splicing, and ST…Supporting---PMID:35767949-
Loss of STMN2 causes early-onset sensory and motor…Supporting---PMID:35767949-
TDP-43-regulated cryptic RNAs accumulate in Alzhei…Supporting---PMID:37605276-
Mis-spliced transcripts generate de novo proteins …Supporting---PMID:38277467-
STRING enrichment shows 'regulation of RNA sp…Supporting---PMID:NA-computational-
QRL-201 (QurAlis) is in Phase 1 (NCT05633459) targ…Supporting---PMID:NCT05633459-
nL-TARD-001 personalized ASO for TARDBP-ALS comple…Supporting---PMID:NCT07095712-
Premature polyadenylation-mediated loss of stathmi…SupportingNat Neurosci MEDIUM2019PMID:30643298
Connecting TDP-43 Pathology with Neuropathy.SupportingTrends Neurosci MEDIUM2021PMID:33832769
Mechanism of SupportingScience MEDIUM2023PMID:36927019
An ANXA11 P93S variant dysregulates TDP-43 and cau…SupportingAlzheimers Deme… MEDIUM2024PMID:38923692
ALS clinical trials targeting splicing (ASOs again…Opposing---PMID:NA-review-
STMN2 knockout represents complete loss-of-functio…Opposing---PMID:35767949-
Axonal degeneration in TDP-43opathies may be drive…Opposing---PMID:NA-review-
STMN2 reduction may reflect broader axonal degener…Opposing---PMID:NA-critique-
PTBP1-Mediated Alternative Splicing Regulates the …OpposingCancer Cell MEDIUM2018PMID:29990503
Legacy Card View — expandable citation cards

Supporting Evidence 11

TDP-43 mediates proper STMN2 mRNA splicing, and STMN2 protein is reduced in ALS spinal cord
Loss of STMN2 causes early-onset sensory and motor neuropathy in mice
TDP-43-regulated cryptic RNAs accumulate in Alzheimer's disease brains
Mis-spliced transcripts generate de novo proteins in TDP-43-related ALS/FTD
STRING enrichment shows 'regulation of RNA splicing' (FDR=0.0011) including PTBP-associated factors
QRL-201 (QurAlis) is in Phase 1 (NCT05633459) targeting STMN2 splicing pathway
nL-TARD-001 personalized ASO for TARDBP-ALS completed Phase 1 (NCT07095712)
Premature polyadenylation-mediated loss of stathmin-2 is a hallmark of TDP-43-dependent neurodegeneration. MEDIUM
Nat Neurosci · 2019 · PMID:30643298
ABSTRACT

Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) are associated with loss of nuclear transactive response DNA-binding protein 43 (TDP-43). Here we identify that TDP-43 regulates expression of the neuronal growth-associated factor stathmin-2. Lowered TDP-43 levels, which reduce i

Connecting TDP-43 Pathology with Neuropathy. MEDIUM
Trends Neurosci · 2021 · PMID:33832769
ABSTRACT

Transactive response DNA-binding protein 43 kDa (TDP-43), a multifunctional nucleic acid-binding protein, is a primary component of insoluble aggregates associated with several devastating nervous system disorders; mutations in TARDBP, its encoding gene, are a cause of familial amyotrophic lateral s

Mechanism of MEDIUM
Science · 2023 · PMID:36927019
ABSTRACT

Loss of nuclear TDP-43 is a hallmark of neurodegeneration in TDP-43 proteinopathies, including amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). TDP-43 mislocalization results in cryptic splicing and polyadenylation of pre-messenger RNAs (pre-mRNAs) encoding stathmin-2 (also kno

An ANXA11 P93S variant dysregulates TDP-43 and causes corticobasal syndrome. MEDIUM
Alzheimers Dement · 2024 · PMID:38923692
ABSTRACT

Variants of uncertain significance (VUS) surged with affordable genetic testing, posing challenges for determining pathogenicity. We examine the pathogenicity of a novel VUS P93S in Annexin A11 (ANXA11) - an amyotrophic lateral sclerosis/frontotemporal dementia-associated gene - in a corticobasal sy

Opposing Evidence 5

ALS clinical trials targeting splicing (ASOs against SOD1 or C9orf72) have shown target engagement but limited…
ALS clinical trials targeting splicing (ASOs against SOD1 or C9orf72) have shown target engagement but limited clinical efficacy
STMN2 knockout represents complete loss-of-function versus partial loss in disease - whether partial restorati…
STMN2 knockout represents complete loss-of-function versus partial loss in disease - whether partial restoration provides therapeutic benefit remains unproven
Axonal degeneration in TDP-43opathies may be driven by multiple parallel mechanisms (transport deficits, mitoc…
Axonal degeneration in TDP-43opathies may be driven by multiple parallel mechanisms (transport deficits, mitochondrial dysfunction, translational impairment)
STMN2 reduction may reflect broader axonal degeneration not specific to targeted populations
PTBP1-Mediated Alternative Splicing Regulates the Inflammatory Secretome and the Pro-tumorigenic Effects of Se… MEDIUM
PTBP1-Mediated Alternative Splicing Regulates the Inflammatory Secretome and the Pro-tumorigenic Effects of Senescent Cells.
Cancer Cell · 2018 · PMID:29990503
ABSTRACT

Oncogene-induced senescence is a potent tumor-suppressive response. Paradoxically, senescence also induces an inflammatory secretome that promotes carcinogenesis and age-related pathologies. Consequently, the senescence-associated secretory phenotype (SASP) is a potential therapeutic target. Here, w

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.
Gap Analysis | 4 rounds | 2026-04-13 | View Analysis
🧬 Theorist Proposes novel mechanisms and generates creative hypotheses

Novel Therapeutic Hypotheses: RNA Binding Protein Dysregulation Across ALS-FTD-AD

Hypothesis 1: RBFOX1 Splicing Restoration to Correct Circuit Hyperexcitability Across the Neurodegeneration Spectrum

Description: RBFOX1 (Fox-1), a neuronal splicing regulator, is downregulated when TDP-43 is lost-of-function, leading to aberrant splicing of channels controlling neuronal excitability (e.g., Nav1.1, Cav1.2). Restoring RBFOX1 expression or delivering engineered RBFOX1-responsive antisense oligonucleotides (ASOs) could correct GABAergic dysfunction and hyperexcitability that appears in

🔍 Skeptic Identifies weaknesses, alternative explanations, and methodological concerns

Critical Evaluation of RNA Binding Protein Therapeutic Hypotheses in Neurodegeneration

Hypothesis 1: RBFOX1 Splicing Restoration

Specific Weaknesses in Evidence

1. Limited human tissue validation: The citation provided (29438978) establishes TDP-43 regulates RBFOX1 splicing in cellular models but does not demonstrate RBFOX1 protein reduction in AD patient tissue. The "computational: synaptic_proteomes_db" annotation is a database reference, not a peer-reviewed finding, representing circular reasoning—using synaptic proteomic databases to confirm hypotheses derived from synapt

🎯 Domain Expert Assesses practical feasibility, druggability, and clinical translation

Practical Drug Development Assessment: RNA Binding Protein Hypotheses in Neurodegeneration

Executive Summary

These hypotheses cluster around an emerging but challenging therapeutic space: RNA binding protein (RBP) dysregulation in neurodegeneration. The field faces three fundamental constraints that must be addressed before any hypothesis graduates from "mechanistically interesting" to "drug development candidate."

Cross-Hypothesis Infrastructure Assessment

The ASO Platform Question

Current State of CNS ASO Delivery:

  • Nusinersen (Spinraza) and eteplirsen (

Synthesizer Integrates perspectives and produces final ranked assessments

Price History

0.580.640.69 created: post_process (2026-04-13T10:48)evidence: evidence_update (2026-04-13T10:48)evidence: evidence_update (2026-04-13T10:48) 0.74 0.53 2026-04-132026-04-152026-04-15 Market PriceScoreevidencedebate 26 events
7d Trend
Stable
7d Momentum
▼ 0.8%
Volatility
Medium
0.0342
Events (7d)
26
⚡ Price Movement Log Recent 3 events
Event Price Change Source Time
📄 New Evidence $0.675 ▼ 6.9% evidence_update 2026-04-13 10:48
📄 New Evidence $0.725 ▲ 9.8% evidence_update 2026-04-13 10:48
Listed $0.660 post_process 2026-04-13 10:48

Clinical Trials (5)

0
Active
0
Completed
554
Total Enrolled
PHASE2
Highest Phase
Search for Biomarkers of Neurodegenerative Diseases in Idiopathic REM Sleep Behavior Disorder N/A
UNKNOWN · NCT04048603 · Chinese University of Hong Kong
182 enrolled · 2019-05-15 · → 2022-03-31
This study is a prospective study with a mean of 7-year follow-up interval, aims to monitor the progression of α-synucleinopathy neurodegeneration by the evolution of prodromal markers and development
REM Sleep Behavior Disorder Neurodegeneration
Efficacy of Dorzolamide as an Adjuvant After Focal Photocoagulation in Clinically Significant Macular Edema N/A
UNKNOWN · NCT02227745 · Hospital Juarez de Mexico
60 enrolled · 2014-01 · → 2015-03
Photocoagulation is the standard treatment in the focal EMCS, disrupts vascular leakage and allows the pigment epithelium remove the intraretinal fluid is effective in reducing the incidence of visual
Diabetic Retinopathy Diabetic Macular Edema
Dorzolamide hydrochloride (2%) Placebo Sodium hyaluronate 4mg
Evaluation of the Frequency and Severity of Sleep Abnormalities in Patients With Parkinson's Disease NA
UNKNOWN · NCT04387812 · Tel-Aviv Sourasky Medical Center
240 enrolled · 2020-06-01 · → 2023-12-31
Sleep disturbances are one of the most common non-motor symptoms in PD, with an estimated prevalence as high as 40-90%. Sleep disturbances (particularly sleep duration, sleep fragmentation, Rapid Eye
Parkinson Disease GBA Gene Mutation Leucine-rich Repeat Kinase 2 (LRRK2) Gene Mutation
Xtrodes home PSG system
Ambroxol in Disease Modification in Parkinson Disease PHASE2
COMPLETED · NCT02941822 · University College, London
23 enrolled · 2016-12 · → 2018-04
This study will evaluate the safety, tolerability and pharmacodynamics of ambroxol in participants with Parkinson Disease. Participants will administer ambroxol at five dose levels and will undergo cl
Parkinson Disease
Ambroxol
Development of a Novel 18F-DTBZ PET Imaging as a Biomarker to Monitor Neurodegeneration of PARK6 and PARK8 Parkinsonism PHASE2
COMPLETED · NCT01759888 · Chang Gung Memorial Hospital
49 enrolled · 2011-08 · → 2014-12
The primary objective of this protocol is to access the utility of 18F-DTBZ PET imaging as an in vivo biomarker to monitor neurodegeneration of both PD mouse models and PD patients. Secondary, the inv
Parkinson's Disease
18F-DTBZ

📚 Cited Papers (13)

Paper:29990503
No extracted figures yet
Paper:30643298
No extracted figures yet
Paper:33832769
No extracted figures yet
Paper:35767949
No extracted figures yet
Paper:36927019
No extracted figures yet
Paper:37605276
No extracted figures yet
Paper:38277467
No extracted figures yet
Paper:38923692
No extracted figures yet
Paper:NA-computational
No extracted figures yet
Paper:NA-critique
No extracted figures yet
Paper:NA-review
No extracted figures yet
Paper:NCT05633459
No extracted figures yet

📓 Linked Notebooks (0)

No notebooks linked to this analysis yet. Notebooks are generated when Forge tools run analyses.

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Wiki Pages

PTBP1 Protein — Polypyrimidine Tract Binding ProteproteinPTBP2 - Polypyrimidine Tract Binding Protein 2genePTBP1 GenegenestathminproteinAxonal DegenerationmechanismSTMN2 (Stathmin-2)geneUS Neurodegeneration EpidemiologydiseaseSleep Disorders in NeurodegenerationdiseasePLA2G6-Associated Neurodegeneration (PLAN)diseasePantothenate Kinase-Associated Neurodegeneration (diseasePantothenate Kinase-Associated Neurodegeneration (diseasePotential Impact Measures — NeurodegenerationdiseaseNeurodegenerationdiseaseNeurodegeneration with Brain Iron Accumulation (NBdiseaseMitochondrial Membrane Protein-Associated Neurodegdisease

KG Entities (3)

STMN2 (stathmin-2), PTBP1/PTBP2TARDBP (TDP-43) / cryptic splice sites ineurodegeneration

Related Hypotheses

SASP-Mediated Complement Cascade Amplification
Score: 0.703 | neurodegeneration
TREM2-Dependent Microglial Senescence Transition
Score: 0.692 | neurodegeneration
H2: Indole-3-Propionate (IPA) as the Actual Neuroprotective Effector
Score: 0.675 | neurodegeneration
Nutrient-Sensing Epigenetic Circuit Reactivation
Score: 0.670 | neurodegeneration
Transcriptional Autophagy-Lysosome Coupling
Score: 0.665 | neurodegeneration

Estimated Development

Estimated Cost
$0
Timeline
0 months

🧪 Falsifiable Predictions

No explicit predictions recorded yet. Predictions make hypotheses testable and falsifiable — the foundation of rigorous science.

Knowledge Subgraph (2 edges)

promoted: Stathmin-2 Splice Switching to Prevent Axonal Degeneration Across the ALS-FTD-AD Spectrum (1)

STMN2 (stathmin-2), PTBP1/PTBP2 neurodegeneration

promoted: TDP-43 Cryptic Exon–Targeted ASOs to Restore Hippocampal Gamma Oscillations (1)

TARDBP (TDP-43) / cryptic splice sites in GABAergic transcripts (DLGAP1, KCNQ2, GABRA1) neurodegeneration

3D Protein Structure

🧬 STMN2 — Search for structure Click to search RCSB PDB
🔍 Searching RCSB PDB for STMN2 structures...
Querying Protein Data Bank API

Source Analysis

RNA binding protein dysregulation across ALS FTD AD

neurodegeneration | 2026-04-13 | failed