Rislenemdaz treatment in the lateral habenula improves despair-like behavior in mice
- 8 March 2020
- journal article
- research article
- Published by Springer Science and Business Media LLC in Neuropsychopharmacology
- Vol. 45 (10), 1717-1724
- https://doi.org/10.1038/s41386-020-0652-9
Abstract
The specific GluN2B antagonist rislenemdaz (Ris; a.k.a. MK-0657 and CERC-301) is in phase II clinical trial as an antidepressive drug, but the working mechanism for its antidepressant effects is not clearly understood. Given the important role of the lateral habenula (LHb) in the pathogenesis of depression and the fact that GluN2B-containing N-methyl-D-aspartate receptors and brain-derived neurotrophic factor (BDNF) are expressed in the LHb, we conducted a study to examine whether the LHb mediates Ris’ antidepressant effects in a chronic restraint stress (CRS)-induced depressive-like mouse model. In this study, Ris was administered systemically or locally into the LHb. Short hairpin RNAs were used to knockdown BDNF in the LHb. Depressive-like behaviors were assessed with the open field test, forced swimming test, tail suspension test, and sucrose preference test. Expression of GluN2B, BDNF, and c-Fos in the LHb were analyzed with western blotting and immunohistochemistry under condition with Ris administered systemically or with BDNF knockdown in the LHb. We found that both systemic and intra-LHb administration of Ris alleviated CRS-induced despair-like behavior and that systemic Ris reduced LHb expression of GluN2B, BDNF, and c-Fos (a neuronal activity marker). Specific knockdown of BDNF in the LHb prevented CRS-induced despair-like behavior, while preventing CRS-induced increases in BDNF and c-Fos expression in the LHb. Together these results suggest that Ris may exert its antidepressant effects through affecting the LHb such as downregulating BDNF expression in the LHb.Keywords
This publication has 50 references indexed in Scilit:
- Brain-Derived Neurotrophic Factor Induces Matrix Metalloproteinase 9 Expression in Neurons via the Serum Response Factor/c-Fos PathwayMolecular and Cellular Biology, 2013
- A Randomized, Placebo-Controlled, Crossover Pilot Trial of the Oral Selective NR2B Antagonist MK-0657 in Patients With Treatment-Resistant Major Depressive DisorderJournal of Clinical Psychopharmacology, 2012
- Signaling pathways underlying the pathophysiology and treatment of depression: novel mechanisms for rapid-acting agentsTrends in Neurosciences, 2012
- Towards a glutamate hypothesis of depressionNeuropharmacology, 2011
- Synaptic potentiation onto habenula neurons in the learned helplessness model of depressionNature, 2011
- Knockdown of brain-derived neurotrophic factor in specific brain sites precipitates behaviors associated with depression and reduces neurogenesisMolecular Psychiatry, 2009
- An Innovative Design to Establish Proof of Concept of the Antidepressant Effects of the NR2B Subunit Selective N-Methyl-D-Aspartate Antagonist, CP-101,606, in Patients With Treatment-Refractory Major Depressive DisorderJournal of Clinical Psychopharmacology, 2008
- Molecular Adaptations Underlying Susceptibility and Resistance to Social Defeat in Brain Reward RegionsCell, 2007
- Neurotrophins: Roles in Neuronal Development and FunctionAnnual Review of Neuroscience, 2001
- Efferent connections of the habenular nuclei in the ratJournal of Comparative Neurology, 1979