Despite several antidepressant treatments being available in clinics, they are not effective in all patients. In recent years, N-acetylcysteine (NAC) has been explored as adjunctive therapy for many psychiatric disorders, including depression, for its antioxidant properties. Given the promising efficacy of this compound for the treatment of such pathologies, it is fundamental to investigate, at the preclinical level, the ability of the drug to act in the modulation of neuroplastic mechanisms in basal conditions and during challenging events in order to highlight the potential features of the drug useful for clinical efficacy. To this aim, adult male Wistar rats were treated with the antidepressant venlafaxine (VLX) (10 mg/kg) or NAC (300 mg/kg) for 21 days and then subjected to 1 h of acute restraint stress (ARS). We found that NAC enhanced the expression of several immediate early genes, markers of neuronal plasticity in the ventral and dorsal hippocampus, prefrontal cortex and amygdala, and in particular it mediated the acute-stress-induced upregulation of Nr4a1 expression more than VLX. These data suggested the ability of NAC to induce coping strategies to face external challenges, highlighting its potential for the improvement of neuroplastic mechanisms for the promotion of resilience, in particular via the modulation of Nr4a1.

Chronic N-acetyl-cysteine treatment enhances the expression of the immediate early gene Nr4a1 in response to an acute challenge in male rats: comparison with the antidepressant venlafaxine / P. Brivio, M.T. Gallo, P. Gruca, M. Lason, E. Litwa, F. Fumagalli, M. Papp, F. Calabrese. - In: INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES. - ISSN 1661-6596. - 24:8(2023 Apr 15), pp. 7321.1-7321.14. [10.3390/ijms24087321]

Chronic N-acetyl-cysteine treatment enhances the expression of the immediate early gene Nr4a1 in response to an acute challenge in male rats: comparison with the antidepressant venlafaxine

P. Brivio;M.T. Gallo;F. Fumagalli;F. Calabrese
2023

Abstract

Despite several antidepressant treatments being available in clinics, they are not effective in all patients. In recent years, N-acetylcysteine (NAC) has been explored as adjunctive therapy for many psychiatric disorders, including depression, for its antioxidant properties. Given the promising efficacy of this compound for the treatment of such pathologies, it is fundamental to investigate, at the preclinical level, the ability of the drug to act in the modulation of neuroplastic mechanisms in basal conditions and during challenging events in order to highlight the potential features of the drug useful for clinical efficacy. To this aim, adult male Wistar rats were treated with the antidepressant venlafaxine (VLX) (10 mg/kg) or NAC (300 mg/kg) for 21 days and then subjected to 1 h of acute restraint stress (ARS). We found that NAC enhanced the expression of several immediate early genes, markers of neuronal plasticity in the ventral and dorsal hippocampus, prefrontal cortex and amygdala, and in particular it mediated the acute-stress-induced upregulation of Nr4a1 expression more than VLX. These data suggested the ability of NAC to induce coping strategies to face external challenges, highlighting its potential for the improvement of neuroplastic mechanisms for the promotion of resilience, in particular via the modulation of Nr4a1.
restraint; antioxidant; IEGs; neuroplastic mechanisms; rats; psychiatric disorders
Settore BIO/14 - Farmacologia
   ENDOCRINE DISRUPTORS: INVESTIGATION OF THE EFFECTS ON THE IMMUNE AND NERVOUS SYSTEMS (EDoNIS)
   EDoNIS
   MINISTERO DELL'ISTRUZIONE E DEL MERITO
   2017MLC3NF_001
15-apr-2023
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/965338
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