miR-16 targets the serotonin transporter: a new facet for adaptive responses to antidepressants - PubMed (original) (raw)
. 2010 Sep 17;329(5998):1537-41.
doi: 10.1126/science.1193692.
Affiliations
- PMID: 20847275
- DOI: 10.1126/science.1193692
miR-16 targets the serotonin transporter: a new facet for adaptive responses to antidepressants
Anne Baudry et al. Science. 2010.
Abstract
The serotonin transporter (SERT) ensures the recapture of serotonin and is the pharmacological target of selective serotonin reuptake inhibitor (SSRI) antidepressants. We show that SERT is a target of microRNA-16 (miR-16). miR-16 is expressed at higher levels in noradrenergic than in serotonergic cells; its reduction in noradrenergic neurons causes de novo SERT expression. In mice, chronic treatment with the SSRI fluoxetine (Prozac) increases miR-16 levels in serotonergic raphe nuclei, which reduces SERT expression. Further, raphe exposed to fluoxetine release the neurotrophic factor S100β, which acts on noradrenergic cells of the locus coeruleus. By decreasing miR-16, S100β turns on the expression of serotonergic functions in noradrenergic neurons. Based on pharmacological and behavioral data, we propose that miR-16 contributes to the therapeutic action of SSRI antidepressants in monoaminergic neurons.
Comment in
- Small RNAs: The enigma of Prozac resolved.
Lewis S. Lewis S. Nat Rev Neurosci. 2010 Nov;11(11):731. doi: 10.1038/nrn2941. Nat Rev Neurosci. 2010. PMID: 20979321
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