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Alterations in 5-HT1B receptor function by p11 in depression-like states.

Science (New York, N.Y.) | Jan 6, 2006

http://www.ncbi.nlm.nih.gov/pubmed/16400147

The pathophysiology of depression remains enigmatic, although abnormalities in serotonin signaling have been implicated. We have found that the serotonin 1B receptor [5-hydroxytryptamine (5-HT1B) receptor] interacts with p11. p11 increases localization of 5-HT1B receptors at the cell surface. p11 is increased in rodent brains by antidepressants or electroconvulsive therapy, but decreased in an animal model of depression and in brain tissue from depressed patients. Overexpression of p11 increases 5-HT1B receptor function in cells and recapitulates certain behaviors seen after antidepressant treatment in mice. p11 knockout mice exhibit a depression-like phenotype and have reduced responsiveness to 5-HT1B receptor agonists and reduced behavioral reactions to an antidepressant.

Pubmed ID: 16400147 RIS Download

Mesh terms: Adult | Aged | Animals | Annexin A2 | Antidepressive Agents | Behavior, Animal | Brain | Cell Membrane | Depression | Electroconvulsive Therapy | Female | Humans | Male | Mice | Mice, Knockout | Mice, Transgenic | Middle Aged | Neurons | Rats | Receptor, Serotonin, 5-HT1B | S100 Proteins | Serotonin | Signal Transduction | Two-Hybrid System Techniques

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Associated grants

  • Agency: NIDA NIH HHS, Id: DA10044
  • Agency: NIMH NIH HHS, Id: MH40899

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