Duloxetine Protects Human Neuroblastoma Cells from Oxidative Stress-Induced Cell Death Through Akt/Nrf-2/HO-1 Pathway.

Duloxetine Protects Human Neuroblastoma Cells from Oxidative Stress-Induced Cell Death Through Akt/Nrf-2/HO-1 Pathway. Neurochem Res. 2017 Nov 13;: Authors: Engel DF, de Oliveira J, Lieberknecht V, Rodrigues ALS, de Bem AF, Gabilan NH Abstract The contribution of oxidative stress to the pathophysiology of depression has been described in numerous studies. Particularly, an increased production of reactive oxygen species (ROS) caused by mitochondrial dysfunction can lead to neuronal cell death. Human neuroblastoma SH-SY5Y cells were used to investigate the neuroprotective effect of the antidepressant duloxetine against rotenone-induced oxidative stress. SH-SY5Y cells were pretreated with duloxetine (1-5 µM) for 24 h followed by a 24-h rotenone exposure (10 µM). The phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) inhibitor LY294002 (10 µM) and the heme oxygenase 1 (HO-1) inhibitor zinc protoporphyrin IX-ZnPP (5 µM) were added to cultures 1 h prior duloxetine treatments. After treatments cell viability and ROS generation were assessed. NF-E2-related factor-2 (Nrf2) nuclear translocation was assessed by immunofluorescent staining after 4 and 8 h of duloxetine incubation. Furthermore, the Nrf2 and HO-1 mRNA expression was carried out after 4-48 h of duloxetine treatment by qRT-PCR. Duloxetine pretreatment antagonized rotenone-induced overproduction of ROS and cell death in SH-SY5Y cells. In addition, a 1-h pretreatmen...
Source: Neurochemical Research - Category: Neuroscience Authors: Tags: Neurochem Res Source Type: research