Astrocyte-specific MCT1 overexpression restores lactate shuttle to re-establish astrocyte-neuron metabolic cross-feeding, sparing neuronal lipids. Addresses metabolic coupling disruption as upstream driver. Biologically diffuse and too far from development-ready intervention; requires detailed mechanistic characterization.
Curated pathway from expert analysis
graph TD
A["MCT1 transporter dysfunction"] --> B["Astrocyte-to-neuron lactate shuttle failure"]
B --> C["Neuronal glucose starvation despite adequate glucose"]
C --> D["Compromised neuronal lipid homeostasis"]
D --> E["Neuronal vulnerability and dendrite loss"]
E --> F["Cognitive and motor deficits"]No linked papers recorded for this hypothesis yet.
No curated PDB or AlphaFold mapping for SLC16A1 yet. Search RCSB →
Median TPM across 13 brain regions for SLC16A1 (MCT1 monocarboxylate transporter 1) 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 SLC16A1 (MCT1 monocarboxylate transporter 1).
Run python3 scripts/backfill_hypothesis_depmap.py to populate.
| Prediction | Predicted | Observed | Status | Conf |
|---|---|---|---|---|
| IF astrocyte-specific MCT1 is overexpressed via AAV9-GFAP-MCT1 viral vector in 3xTg-AD mice at 6 months of age, THEN we will observe a significant increase in astrocyte-to-neuron lactate flux (measure | A ≥40% increase in neuronal lactate uptake from astrocytes and ≥30% reduction in cortical neuron count loss (caspase-3+ TUNEL+ cells) relative to vector control | — no observation — | pending | 0.65 |
| IF astrocyte-conditional Mct1 knockout (Mct1fl/fl;GFAP-Cre) mice are subjected to MPTP-induced Parkinsonism, THEN these animals will exhibit accelerated dopaminergic neuron loss and increased striatal | ≥50% greater loss of tyrosine hydroxylase+ neurons in substantia nigra pars compacta and ≥2-fold increase in striatal 4-HNE immunoreactivity at 14 days post-MPT | — no observation — | pending | 0.58 |