ID: hyp-SDA-2026-04-08-gap-pubmed-20260406-0
Hypothesis
Epigenetic ADCY8 Memory Programming
The memory-based navigation differences associated with ADCY8 may involve epigenetic programming during critical developmental windows.
memory and navigation
EvidencePending (0%)📖 5 cit🗣 1 debates✓ 5 support✗ 1 oppose
✓ All Quality Gates Passed
🧪 Overview
The memory-based navigation differences associated with ADCY8 may involve epigenetic programming during critical developmental windows. Therapeutic epigenetic reprogramming of ADCY8 expression could restore spatial memory capabilities by reactivating juvenile-like plasticity in navigation circuits.
🧬 Mechanism
🔗 Mechanism from KG for ADCY8
Auto-built from this analysis's top knowledge-graph edges.
graph TD
ADCY8["ADCY8"] -->|produces| cAMP["cAMP"]
ADCY8_1["ADCY8"] -->|modulates| spatial_navigation["spatial_navigation"]
ADCY8_2["ADCY8"] -->|activates| PKA_CREB_signaling_cascad["PKA-CREB signaling cascade"]
ADCY8_3["ADCY8"] -->|regulates| long_term_spatial_memory_["long-term spatial memory formation"]
ADCY8_4["ADCY8"] -->|activates| cAMP_signaling["cAMP signaling"]
ADCY8_5["ADCY8"] -->|activates| PKA["PKA"]
ADCY8_6["ADCY8"] -->|regulates| spatial_memory_formation["spatial memory formation"]
ADCY8_7["ADCY8"] -->|regulates| hippocampus["hippocampus"]
ADCY8_8["ADCY8"] -->|causes| long_term_spatial_memory__9["long_term_spatial_memory_formation"]
ADCY8_10["ADCY8"] -->|modulates| epigenetic_programming["epigenetic_programming"]
ADCY8_11["ADCY8"] -->|protective against| navigation_disorders["navigation_disorders"]
ADCY8_12["ADCY8"] -->|modulates| synaptic_plasticity["synaptic_plasticity"]
ADCY8_13["ADCY8"] -->|enhances| adenylyl_cyclase_activity["adenylyl_cyclase_activity"]
ADCY8_14["ADCY8"] -->|couples with| circadian_rhythms["circadian_rhythms"]
ADCY8_variants["ADCY8 variants"] -->|enhances| cAMP_dependent_memory_con["cAMP-dependent memory consolidation"]
style ADCY8 fill:#ce93d8,stroke:#333,color:#000
style cAMP fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_1 fill:#ce93d8,stroke:#333,color:#000
style spatial_navigation fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_2 fill:#ce93d8,stroke:#333,color:#000
style PKA_CREB_signaling_cascad fill:#81c784,stroke:#333,color:#000
style ADCY8_3 fill:#ce93d8,stroke:#333,color:#000
style long_term_spatial_memory_ fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_4 fill:#ce93d8,stroke:#333,color:#000
style cAMP_signaling fill:#81c784,stroke:#333,color:#000
style ADCY8_5 fill:#ce93d8,stroke:#333,color:#000
style PKA fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_6 fill:#ce93d8,stroke:#333,color:#000
style spatial_memory_formation fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_7 fill:#ce93d8,stroke:#333,color:#000
style hippocampus fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_8 fill:#ce93d8,stroke:#333,color:#000
style long_term_spatial_memory__9 fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_10 fill:#ce93d8,stroke:#333,color:#000
style epigenetic_programming fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_11 fill:#ce93d8,stroke:#333,color:#000
style navigation_disorders fill:#ef5350,stroke:#333,color:#000
style ADCY8_12 fill:#ce93d8,stroke:#333,color:#000
style synaptic_plasticity fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_13 fill:#ce93d8,stroke:#333,color:#000
style adenylyl_cyclase_activity fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_14 fill:#ce93d8,stroke:#333,color:#000
style circadian_rhythms fill:#4fc3f7,stroke:#333,color:#000
style ADCY8_variants fill:#ce93d8,stroke:#333,color:#000
style cAMP_dependent_memory_con fill:#4fc3f7,stroke:#333,color:#000⚖️ Evidence
⚖️ Evidence Matrix5 supports0 contradicts
Supports
Adcy8 deficiency contributes to impaired lipolysis and an increased prevalence of obesity in mice.
Supports
FXR Mediates Adenylyl Cyclase 8 Expression in Pancreatic β-Cells.
Supports
Ca(2+)-stimulated ADCY1 and ADCY8 regulate distinct aspects of synaptic and cognitive flexibility.
Supports
Multilevel control of glucose homeostasis by adenylyl cyclase 8.
Supports
Polymorphism in ovine ADCY8 gene and its association with residual feed intake in Hu sheep.
📖 Linked Papers
No linked papers recorded for this hypothesis yet.
🏥 Translation
🧬 3D Protein Structure — ADCY8
No curated PDB or AlphaFold mapping for ADCY8 yet. Search RCSB →
💉 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.
No DepMap CRISPR Chronos data found for ADCY8.
Run python3 scripts/backfill_hypothesis_depmap.py to populate.
🏆 Tournament
🏆 Arenas / Elo
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📊 Market Indicators
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🔮 Predictions
🔎 Predictions vs Observations2 predictions · 0 with recorded observations
| Prediction | Predicted | Observed | Status | Conf |
|---|---|---|---|---|
| IF we selectively demethylate the ADCY8 gene promoter region during early postnatal development (P7-P21) in C57BL/6J mice using CRISPR-dCas9-TET1 fusion protein delivered via AAV9, THEN these mice wil | Reduced escape latency (≤20 seconds vs. ≥28 seconds in controls) and increased platform crossing in probe trial. | — no observation — | pending | 0.45 |
| IF we administer systemic HDAC inhibitor (SAHA, 50mg/kg, i.p., 14 days) to aged C57BL/6J mice (18-20 months) with documented navigation deficits, THEN spatial memory will be restored to young adult le | Escape latency reduction to ≤22 seconds (vs. ≥32 seconds in vehicle) and ADCY8 promoter methylation reduction to ≤25% (vs. ≥50% in aged controls). | — no observation — | pending | 0.38 |
🔮 Falsifiable Predictions (2)
pendingconf 45%
IF we selectively demethylate the ADCY8 gene promoter region during early postnatal development (P7-P21) in C57BL/6J mice using CRISPR-dCas9-TET1 fusion protein delivered via AAV9, THEN these mice will exhibit significantly enhanced spatial navigation performance in adulthood (60-90 days) compared t
Predicted outcome: Reduced escape latency (≤20 seconds vs. ≥28 seconds in controls) and increased platform crossing in probe trial.
Falsification: No significant difference in spatial navigation performance between demethylated and control groups, or enhanced performance occurring without ADCY8 expression changes.
pendingconf 38%
IF we administer systemic HDAC inhibitor (SAHA, 50mg/kg, i.p., 14 days) to aged C57BL/6J mice (18-20 months) with documented navigation deficits, THEN spatial memory will be restored to young adult levels with reversal of ADCY8 hypermethylation patterns in hippocampus CA1 region.
Predicted outcome: Escape latency reduction to ≤22 seconds (vs. ≥32 seconds in vehicle) and ADCY8 promoter methylation reduction to ≤25% (vs. ≥50% in aged controls).
Falsification: No restoration of spatial memory despite confirmed HDAC inhibition and ADCY8 demethylation, or memory improvement without coordinated changes in ADCY8 expression.
▸Metadatasource: v1_phase_c_backfill · origin_type: debate_synthesis
| source | v1_phase_c_backfill |
| origin_type | debate_synthesis |
| _schema_version | 1 |
📊 Evidence Profile
Evidence Balance
+0%
Certainty
0%
Debates
0
Incoming
0
Outgoing
0
0 supporting
0 contradicting
0 neutral
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