Uncoupling the dopamine D1-D2 receptor complex exerts antidepressant-like effects.
basic_science · Level V
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- Record sourced from PubMed, PMID 21113156.
- Also identified by DOI 10.1038/nm.2263.
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Abstract
We report that coupling between dopamine D1 and D2 receptors was markedly increased in postmortem brain of subjects suffering from major depression. Biochemical analyses revealed that D1 and D2 receptors form heterodimers via a direct protein-protein interaction. Administration of an interfering peptide that disrupts the D1-D2 receptor complex substantially reduced immobility in the forced swim test (FST) without affecting locomotor activity, and decreased escape failures in learned helplessness tests in rats.
Medical subject headings
- Depression
- Multiprotein Complexes
- Protein Binding
- Receptors, Dopamine D1
- Receptors, Dopamine D2
- Recombinant Fusion Proteins