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Dopamine metabolism by a monoamine oxidase mitochondrial shuttle activates the electron transport chain.

Nature neuroscience | 2020

Monoamine oxidase (MAO) metabolizes cytosolic dopamine (DA), thereby limiting auto-oxidation, but is also thought to generate cytosolic hydrogen peroxide (H2O2). We show that MAO metabolism of DA does not increase cytosolic H2O2 but leads to mitochondrial electron transport chain (ETC) activity. This is dependent upon MAO anchoring to the outer mitochondrial membrane and shuttling electrons through the intermembrane space to support the bioenergetic demands of phasic DA release.

Pubmed ID: 31844313 RIS Download

Research resources used in this publication

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Associated grants

  • Agency: NINDS NIH HHS, United States
    Id: R01 NS034696
  • Agency: NIDA NIH HHS, United States
    Id: R00 DA039253
  • Agency: U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS), International
    Id: U01NS090604
  • Agency: NINDS NIH HHS, United States
    Id: P50 NS047085
  • Agency: NINDS NIH HHS, United States
    Id: U01 NS090604
  • Agency: NINDS NIH HHS, United States
    Id: U01 NS103522
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS076054
  • Agency: NCI NIH HHS, United States
    Id: P30 CA060553
  • Agency: U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS), International
    Id: U01NS103522
  • Agency: NIDA NIH HHS, United States
    Id: K99 DA039253

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