Acta Neuropsychiatrica Esketamine and rapastinel, but not imipramine, cambridge.org/neu have antidepressant-like effect in a treatment- resistant animal model of depression 1 1,2,3 4,5 1 Original Article Vitor Silva Pereira , Sâmia R.L. Joca , Brian H. Harvey , Betina Elfving and Gregers Wegener1 Cite this article: Pereira VS, Joca SRL, Harvey BH, Elfving B, and Wegener G. (2019) 1Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, DK-8240 Risskov, Esketamine and rapastinel, but not 2 imipramine, have antidepressant-like effect in Denmark; Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, Campus 3 a treatment-resistant animal model of USP-Ribeirão Preto, Ribeirão Preto, SP 14040-904, Brazil; Aarhus Institute of Advanced Studies (AIAS), Aarhus 4 depression. Acta Neuropsychiatrica University, DK-8000 Aarhus C, Denmark; Centre for Pharmaceutical Excellence, School of Pharmacy, North-West 31:258–265. doi: 10.1017/neu.2019.25 University, Potchefstroom, 2520, South Africa and 5Department of Pharmacology, North-West University, Potchefstroom, 2520, South Africa Received: 19 March 2019 Revised: 20 May 2019 Accepted: 27 May 2019 Abstract First published online: 24 June 2019 Objectives: Treatment-resistance to antidepressants is a major problem in the pharmacotherapy of major depressive disorder (MDD). Unfortunately, only a few animal models are suitable for study- Key words: adrenocorticotropic hormone; depression; ing treatment-resistant depression, among them repeated treatment with Adrenocorticotropic esketamine; GLYX-13 peptide; rat hormone (ACTH) appears to be useful to mimic treatment-resistance to monoaminergic anti- depressants. Therefore, the present work aimed to investigate the effectiveness of s-ketamine Author for correspondence: and rapastinel (formerly GLYX13), modulators of the glutamatergic N-methyl-D-aspartate recep- Gregers Wegener, Email:
[email protected] tor in ACTH-treated animals.