The Behavioral Effects of the Antidepressant Tianeptine Require the Mu-Opioid Receptor.
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Samuels BA, Nautiyal KM, Kruegel AC, Levinstein MR, Magalong VM, Gassaway MM, Grinnell SG, Han J, Ansonoff MA, Pintar JE, Javitch JA, Sames D, Hen R
The Behavioral Effects of the Antidepressant Tianeptine Require the Mu-Opioid Receptor.
Neuropsychopharmacology. 2017 Sep;42(10):2052-2063. doi: 10.1038/npp.2017.60. Epub 2017 Mar 17.
- PubMed ID
- 28303899 [ View in PubMed]
- Abstract
Depression is a debilitating chronic illness that affects around 350 million people worldwide. Current treatments, such as selective serotonin reuptake inhibitors, are not ideal because only a fraction of patients achieve remission. Tianeptine is an effective antidepressant with a previously unknown mechanism of action. We recently reported that tianeptine is a full agonist at the mu opioid receptor (MOR). Here we demonstrate that the acute and chronic antidepressant-like behavioral effects of tianeptine in mice require MOR. Interestingly, while tianeptine also produces many opiate-like behavioral effects such as analgesia and reward, it does not lead to tolerance or withdrawal. Furthermore, the primary metabolite of tianeptine (MC5), which has a longer half-life, mimics the behavioral effects of tianeptine in a MOR-dependent fashion. These results point to the possibility that MOR and its downstream signaling cascades may be novel targets for antidepressant drug development.
DrugBank Data that Cites this Article
- Drugs
- Drug Targets
Drug Target Kind Organism Pharmacological Action Actions Tianeptine Mu-type opioid receptor Protein Humans YesAgonistDetails