ID: hyp-SDA-2026-04-08-gap-pubmed-20260406-0
Hypothesis
ADCY8-Mediated Synaptic Tagging for Spatial Memories
ADCY8 may specifically tag synapses involved in spatial navigation memories through localized cAMP signaling, creating dedicated 'navigation synapses.' Therapeutic enhancement of this synaptic tagging could selectively strengthen spatial.
memory and navigation
EvidencePending (0%)📖 2 cit🗣 1 debates✓ 2 support✗ 1 oppose
✓ All Quality Gates Passed
🧪 Overview
ADCY8 may specifically tag synapses involved in spatial navigation memories through localized cAMP signaling, creating dedicated 'navigation synapses.' Therapeutic enhancement of this synaptic tagging could selectively strengthen spatial memory circuits without affecting other memory systems.
🧬 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 Matrix2 supports0 contradicts
Supports
Ca(2+)-stimulated ADCY1 and ADCY8 regulate distinct aspects of synaptic and cognitive flexibility.
Supports
Jejunal long noncoding RNAs are associated with glycemic control via gut-brain axis after bariatric surgery in diabetic mice.
📖 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
7d Trend
↔
Stable
7d Momentum
▲ 0.0%
Volatility
High
0.0535
Events (7d)
0
Price History
▲6.0%💾 Resource Usage
LLM Tokens
7,012
$0.0421
Total Cost
$0.0421
🔮 Predictions
🔎 Predictions vs Observations2 predictions · 0 with recorded observations
| Prediction | Predicted | Observed | Status | Conf |
|---|---|---|---|---|
| IF ADCY8 is selectively overexpressed via AAV-CaMKII-promoter-driven expression in dorsal hippocampal CA1 neurons during spatial navigation training, THEN spatial memory will be enhanced (measured by | At least 30% increase in target quadrant time and 40% decrease in platform latency during probe trial compared to GFP control mice, with no change in freezing b | — no observation — | pending | 0.55 |
| IF ADCY8 is selectively knocked down in dorsal hippocampal CA1 neurons using AAV-shRNA in adult male C57BL/6J mice, THEN spatial memory performance on the Morris water maze will decrease significantly | At least 50% increase in latency to find hidden platform and at least 40% decrease in time spent in target quadrant during probe trial compared to controls | — no observation — | pending | 0.65 |
🔮 Falsifiable Predictions (2)
pendingconf 65%
IF ADCY8 is selectively knocked down in dorsal hippocampal CA1 neurons using AAV-shRNA in adult male C57BL/6J mice, THEN spatial memory performance on the Morris water maze will decrease significantly compared to control mice expressing scrambled shRNA within 4-6 weeks post-viral injection.
Predicted outcome: At least 50% increase in latency to find hidden platform and at least 40% decrease in time spent in target quadrant during probe trial compared to con
Falsification: No significant difference in Morris water maze performance between ADCY8 knockdown and control groups, OR equivalent impairment in non-spatial memory tasks (contextual fear conditioning), OR motor/sen
pendingconf 55%
IF ADCY8 is selectively overexpressed via AAV-CaMKII-promoter-driven expression in dorsal hippocampal CA1 neurons during spatial navigation training, THEN spatial memory will be enhanced (measured by probe trial performance) without affecting contextual fear conditioning memory within 8 weeks post-v
Predicted outcome: At least 30% increase in target quadrant time and 40% decrease in platform latency during probe trial compared to GFP control mice, with no change in
Falsification: Enhanced spatial memory accompanied by impaired contextual fear conditioning, OR enhanced performance in both spatial and non-spatial memory tasks, OR no enhancement of spatial memory, OR motor activi
▸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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