ArticlePLoS biology2025
Octopamine signaling regulates the intracellular pattern of the presynaptic active zone scaffold within Drosophila mushroom body neurons.
Article in PLoS biology, 2025. 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.
- Octopamine regulates neural circuits in the mushroom body and central complex, influencing sleep and arousal.iScience · 2026Article
- Axonopathy: mechanisms and potential therapeutic targets for neurodegenerative diseases.Translational neurodegeneration · 2026Review
- Article
- Disruption of a selective vesicle pool upon retrograde amnesia dissociates memory at presynaptic terminals.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
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10 authors.
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Abstract
Neurons can adjust synaptic output according to the postsynaptic partners. However, the target-specific regulation of synaptic structures within individual neurons in the central nervous system remains unresolved. Applying the CRISPR/Cas9-mediated split-GFP tagging, we visualized the endogenous active zone scaffold protein, Bruchpilot (Brp), in specific cells. This technology enabled the spatial characterization of the presynaptic scaffolds only within the Kenyon cells (KCs) of the Drosophila mushroom bodies. We found the patterned accumulation of Brp among the compartments of axon terminals, where a KC synapses onto different postsynaptic neurons. Mechanistically, the localized octopaminergic projections along γ KC terminals regulate this compartmental Brp heterogeneity via Octβ2R and cAMP signaling. We further found that physiological stress, such as food or sleep deprivation reorganizes this intracellular pattern in an octopamine-dependent manner. Such concurrent regulation of local active zone assemblies thus suggests how the mushroom bodies integrate changing physiological states.
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