Alcohol Activates Scabrous-Notch to Influence Associated Memories
| Autor: | Yanabah Jaques, Michael Feyder, Nicolas Ledru, Edward N. Anderson, Emily Petruccelli, Karla R. Kaun |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Male media_common.quotation_subject Notch signaling pathway Alcohol use disorder Biology Article Transcriptome 03 medical and health sciences Dopamine Memory Gene expression medicine Animals Drosophila Proteins Protein Isoforms Mushroom Bodies media_common Glycoproteins Neurons Ethanol Receptors Notch Receptors Dopamine D2 General Neuroscience Addiction Alternative splicing medicine.disease Repressor Proteins 030104 developmental biology Mushroom bodies Odorants Cues Neuroscience medicine.drug |
| Zdroj: | Neuron. 100(5) |
| ISSN: | 1097-4199 |
| Popis: | Summary Drugs of abuse, like alcohol, modulate gene expression in reward circuits and consequently alter behavior. However, the in vivo cellular mechanisms through which alcohol induces lasting transcriptional changes are unclear. We show that Drosophila Notch/Su(H) signaling and the secreted fibrinogen-related protein Scabrous in mushroom body (MB) memory circuitry are important for the enduring preference of cues associated with alcohol’s rewarding properties. Alcohol exposure affects Notch responsivity in the adult MB and alters Su(H) targeting at the dopamine-2-like receptor (Dop2R). Alcohol cue training also caused lasting changes to the MB nuclear transcriptome, including changes in the alternative splicing of Dop2R and newly implicated transcripts like Stat92E. Together, our data suggest that alcohol-induced activation of the highly conserved Notch pathway and accompanying transcriptional responses in memory circuitry contribute to addiction. Ultimately, this provides mechanistic insight into the etiology and pathophysiology of alcohol use disorder. |
| Databáze: | OpenAIRE |
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