ArticleDisease models & mechanisms2024
Modulation of SNARE-dependent exocytosis in astrocytes improves neuropathology in Huntington's disease.
Article in Disease models & mechanisms, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Therapeutic strategies for Huntington's disease: current approaches and future direction.Neurodegenerative disease management · 2026Review
- Mutant huntingtin expression in somatostatin-positive interneurons contributes to neurophysiological and behavioral phenotypes in BACHD mice.Disease models & mechanisms · 2026Article
- Silmitasertib, an FDA-designated orphan CK2 inhibitor, ameliorates neuropathology and motor dysfunction in a Huntington's disease mouse model.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026Article
- Silmitasertib, an FDA-designated orphan CK2 Inhibitor, ameliorates neuropathology and motor dysfunction in a Huntington's disease mouse model.bioRxiv : the preprint server for biology · 2025Article
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Authors and funding
7 authors.
Funding
Abstract
Huntington's disease (HD) is a fatal, progressive neurodegenerative disorder. Prior studies revealed an increase in extracellular glutamate levels after evoking astrocytic SNARE-dependent exocytosis from cultured primary astrocytes from mutant huntingtin (mHTT)-expressing BACHD mice compared to control astrocytes, suggesting alterations in astrocytic SNARE-dependent exocytosis in HD. We used BACHD and dominant-negative (dn)SNARE mice to decrease SNARE-dependent exocytosis from astrocytes to determine whether reducing SNARE-dependent exocytosis from astrocytes could rescue neuropathological changes in vivo. We observed significant protection against striatal atrophy and no significant rescue of cortical atrophy in BACHD/dnSNARE mice compared to BACHD mice. Amino acid transporters are important for modulating the levels of extracellular neurotransmitters. BACHD mice had no change in GLT1 expression, decreased striatal GAT1 expression and increased levels of GAT3. There was no change in GAT1 after reducing astrocytic SNARE-dependent exocytosis, and increased GAT3 expression in BACHD mice was normalized in BACHD/dnSNARE mice. Thus, modulation of astrocytic SNARE-dependent exocytosis in BACHD mice is protective against striatal atrophy and modulates GABA transporter expression.
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