Abstract:
:Fluvoxamine, a common antidepressant agent, is designed to exert its pharmacological effect by inhibiting synaptic serotonin reuptake. However, increasing evidence has demonstrated that σ1 receptors are likely to be involved in the mechanism of action of fluvoxamine. The present study aimed to observe the effects of fluvoxamine on the expression levels of mammalian target of rapamycin (mTOR), Ca2+/calmodulin-dependent protein kinase 2γ (Camk2γ) and glycogen synthase kinase-3β (GSK-3β) in fluvoxamine-treated N2a cells and attempted to elucidate whether σ1 receptors mediate the pharmacological effects of fluvoxamine. The N2a cells were randomly divided into three groups (each n=6): DMEM group (D group), 0.5 μmol/l fluvoxamine group (F group) and 0.2 μmol/l BD1047 (a σ1 receptor antagonist) + 0.5 μmol/l fluvoxamine group (BF group). Western blotting was used to determine the expression levels of mTOR, Camk2γ and GSK-3β in the cultured N2a cells after two days of incubation. The F group exhibited significant increases in the expression levels of mTOR and Camk2γ and a significant reduction in the expression levels of GSK-3β compared with those in the D group (P<0.01). By contrast, the BF group demonstrated significant reductions in the expression levels of mTOR and Camk2γ and a significant increase in the expression levels of GSK-3β, compared with those in the F group (P<0.01). These results suggest that σ1 receptors mediate fluvoxamine-elicited changes in the expression levels of mTOR, Camk2γ and GSK-3β in N2a cells, which indicates that σ1 receptors are likely to be involved in the pharmacological effects of fluvoxamine.
journal_name
Exp Ther Medjournal_title
Experimental and therapeutic medicineauthors
Su DA,Jiang RY,Liu N,Ding LC,Wang DM,Yu HY,Yan ES,Zhu MH,Zhu Bdoi
10.3892/etm.2013.1438subject
Has Abstractpub_date
2014-02-01 00:00:00pages
435-438issue
2eissn
1792-0981issn
1792-1015pii
etm-07-02-0435journal_volume
7pub_type
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