🧪
hypothesis

Astrocyte GAT-3 dysfunction and inhibitory-network disruption in ALS/FTD

Hypothesis

Astrocyte GAT-3 dysfunction and inhibitory-network disruption in ALS/FTD

Astrocytic GABA transporter dysfunction may contribute to extracellular GABA changes, chloride-gradient disruption, and network hyperexcitability in ALS/FTD.
🧬 SLC6A13; SLC12A5; SLC12A2🩺 neurodegeneration🎯 Composite 49%💱 $0.50▲2.6%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 3 support 2 oppose
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🧪 Overview

Astrocytic GABA transporter dysfunction may contribute to extracellular GABA changes, chloride-gradient disruption, and network hyperexcitability in ALS/FTD. The hypothesis is interesting but requires directionality testing because restoring uptake, inhibiting uptake, and region-specific modulation could have opposite effects.

🧬 Mechanism

No curated mechanism pathway recorded for this hypothesis.

⚖️ Evidence

⚖️ Evidence Matrix3 supports2 contradicts
Supports
GAT-3 downregulation has been observed in ALS model and patient-related tissue contexts.
PMID:31182647
Supports
KCC2 dysfunction can contribute to excitotoxicity and altered inhibitory signaling.
PMID:25656281
Supports
Restoring inhibitory balance can improve outcomes in ALS models, supporting circuit-level therapeutic logic.
PMID:31439797
Contradicts
Reduced GAT-3 could be compensatory or secondary to astrocyte reactivity rather than causal for ALS/FTD hyperexcitability.
PMID:31182647
Contradicts
Extracellular GABA accumulation does not straightforwardly imply hyperexcitability unless chloride gradients, regional circuitry, and cell-type effects are resolved.
PMID:25656281
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — SLC6A13;

No curated PDB or AlphaFold mapping for SLC6A13; 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.

🔍 Search ClinVar for SLC6A13; SLC12A5; SLC12A2 →

No DepMap CRISPR Chronos data found for SLC6A13; SLC12A5; SLC12A2.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

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📊 Market Indicators

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💾 Resource Usage

No resource usage or linked notebooks recorded for this hypothesis yet.

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