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- W4206061639 abstract "Growing evidence suggests that changes in histone acetylation in specific sites of the chromatin modulate neuronal plasticity and contribute to antidepressant-like action. Sirtuin 2 (SIRT2) is a class III NAD+-dependent histone deacetylase involved in transcriptional repression of genes regulating synaptic plasticity. Importantly, a key role for the glutamate system in prefrontal cortex (PFC) synaptic plasticity changes induced by antidepressants has been suggested. Here, we asked whether SIRT2 could be a pharmacological target for depression therapy. The compound 2-{3-(3-fluorophenethyloxy)phenylamino}benzamide (33i), a selective SIRT2 inhibitor in vitro, was studied in mice (C57Bl6). Firstly, the inhibitory effect of subchronic 33i (5–15 mg/kg, 10 days) on SIRT2 activity in the PFC was evaluated. Moreover, the effect of SIRT2 inhibition on the expression of synaptic plasticity markers linked to glutamate neurotransmission (VGLUT1, synaptophysin, mGluR4, GluA1, GluN2B, GluN2A) and on serotonin levels was studied. Further, neurochemical and behavioral effects of chronic (5 weeks) 33i (15 mg/kg) on the chronic mild stress (CMS) model were analyzed. Subchronic 33i inhibited SIRT2, increased GluN2A, GluN2B and serotonin levels in the PFC. Moreover, chronic 33i reverted CMS-induced anhedonia and social avoidance. Moreover, 33i upregulated postsynaptic GluN2B and phosphorylated form of GluA1 (p-GluA1), suggesting that SIRT2 inhibition enhance synaptic strength. Yet, CMS also increased both GluN2A and GluN2B in the postsynaptic fraction. These results suggest that Sirt2 inhibition induce antidepressant-like action and this effect could be mediated by modulation of glutamate and serotonin system in the PFC. Moreover, it highlights the therapeutic potential of SIRT2 inhibitors as new antidepressant agents." @default.
- W4206061639 created "2022-01-26" @default.
- W4206061639 date "1988-03-01" @default.
- W4206061639 modified "2023-10-18" @default.
- W4206061639 title "Schizophreniform diagnosis: Long-term clinical profile" @default.
- W4206061639 doi "https://doi.org/10.1016/0920-9964(88)90059-x" @default.
- W4206061639 hasPublicationYear "1988" @default.
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