Region-Specific Enhancement of c-fos Expression by Combined Treatment With NMDA Receptor Agonists and Antagonists With Antidepressant Potential
Autor: | Andrei-Nicolae Vasilescu, Natascha Pfeiffer, Federica Terraneo, Marco Andrea Riva, Undine E Lang, Dragos Inta, Peter Gass |
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Rok vydání: | 2022 |
Předmět: | |
Zdroj: | International Journal of Neuropsychopharmacology. 25:946-950 |
ISSN: | 1469-5111 1461-1457 |
DOI: | 10.1093/ijnp/pyac051 |
Popis: | Summary Rapastinel, formerly Glyx-13, is a novel positive allosteric modulator of the N-methyl-D-aspartate-receptor (NMDAR) that counteracts psychotomimetic actions of NMDAR antagonists. We set out to evaluate the effect of rapastinel alone or in combination with the global and GluN2B subunit–specific NMDAR antagonists MK-801 and Ro25-6981, respectively, on neuronal activation in relevant regions using c-fos brain mapping. Whereas rapastinel alone did not trigger significant c-fos expression beyond the prelimbic cortex, it strongly increased the c-fos expression induced by MK-801 in hippocampal, cingulate, and retrosplenial areas. Similar results were obtained when rapastinel was replaced by D-cycloserine. Our results reveal new interactions at network level between NMDAR modulators with possible implications regarding their therapeutic effects. |
Databáze: | OpenAIRE |
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