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Cocaethylene synthesis in Drosophila.

G Torres1, J M Horowitz

  • 1Department of Psychology, State University of New York at Buffalo, 14260, USA. gtorres@acsu.buffalo.edu

Neuroscience Letters
|April 23, 1999
PubMed
Summary

Fruit flies convert cocaine into cocaethylene, an active metabolite linked to addiction. This discovery in Drosophila melanogaster highlights conserved metabolic pathways relevant to studying polydrug abuse and addiction.

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Genetics

Background:

  • Cocaethylene is an active cocaine metabolite impacting neural reward pathways.
  • It contributes to the addictive properties of ethanol and cocaine.
  • Understanding its formation is crucial for addiction research.

Purpose of the Study:

  • To investigate if fruit flies (Drosophila melanogaster) can metabolize cocaine into cocaethylene.
  • To explore the conservation of cocaine metabolic pathways between flies and mammals.
  • To establish Drosophila as a model for studying addiction.

Main Methods:

  • Gas chromatography-mass spectrometry was used to analyze cocaine metabolism in fruit flies.
  • Experiments focused on identifying the conversion of cocaine to cocaethylene.
  • The role of ethanol-sensitive enzymes was investigated.

Main Results:

  • Fruit flies possess a cellular mechanism to convert cocaine into cocaethylene.
  • This conversion is presumably mediated by ethanol-sensitive enzymes.
  • The findings reveal a striking similarity in gene products between flies and humans.

Conclusions:

  • Drosophila melanogaster can metabolize cocaine to cocaethylene, indicating conserved biochemical pathways.
  • This conservation suggests a homologous role in cocaine metabolic inactivation.
  • Fruit flies offer a valuable model for studying the cellular and molecular basis of polydrug abuse and addiction.

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