Reactive astrocytes may degrade acetylcholine and destabilize cortical network states, secondarily creating conditions permissive for tau phosphorylation and spread. The debate judged this as a secondary amplifier at best, not a primary ordering mechanism.
Curated pathway from expert analysis
flowchart TD
A["Neuroinflammatory Trigger<br/>Amyloid or Injury"]
B["Reactive Astrocyte<br/>Activation A1 State"]
C["BCHE ACHE Cholinesterase<br/>Overexpression"]
D["Acetylcholine Degradation<br/>Cholinergic Deficit"]
E["Cortical Network<br/>Destabilization"]
F["GSK3B CDK5 Kinase<br/>Activation"]
G["Tau Phosphorylation<br/>Neurofibrillary Tangles"]
H["Secondary Tau Spread<br/>Cognitive Decline"]
A --> B
B --> C
C --> D
D --> E
E --> F
F --> G
G --> H
style A fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
style B fill:#1a237e,stroke:#4fc3f7,color:#4fc3f7
style G fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
style H fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9aNo linked papers recorded for this hypothesis yet.
No curated PDB or AlphaFold mapping for BCHE yet. Search RCSB →
Median TPM across 13 brain regions for BCHE, ACHE, GSK3B, CDK5 from GTEx v10.
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.
No DepMap CRISPR Chronos data found for BCHE, ACHE, GSK3B, CDK5.
Run python3 scripts/backfill_hypothesis_depmap.py to populate.
| Prediction | Predicted | Observed | Status | Conf |
|---|---|---|---|---|
| IF chemogenetic (hM3Dq) activation of astrocytes is induced in 5xFAD mice crossed with P301S-tau mice for 4 weeks to elevate local cholinesterase expression, THEN cortical acetylcholine levels will de | ≥40% decrease in ACh concentration (microdialysis); ≥50% increase in AT8+ tau pathology in activated cortical regions | — no observation — | pending | 0.35 |
| IF selective astrocyte-targeted BCHE/ACHE inhibition (via AAV-shBCHE microinjection into entorhinal cortex) is performed in P301S tauopathy mice at 3 months, THEN tau phosphorylation at AT8+ sites and | ≥30% reduction in AT8+ immunoreactive neurons in hippocampus and entorhinal cortex; decreased NFT burden in hippocampus | — no observation — | pending | 0.40 |