Volume 10, Issue 4 (Vol.10 No.4 Jan 2022)                   rbmb.net 2022, 10(4): 675-685 | Back to browse issues page

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Baghal-Sadriforoush S, Bagheri M, Abdi Rad I, Sotoodeh Nejadnematalahi F. PI3K Inhibition Sensitize the Cisplatin-resistant Human Ovarian Cancer Cell OVCAR3 by Induction of Oxidative Stress. rbmb.net. 2022; 10 (4) :675-685
URL: http://rbmb.net/article-1-800-en.html
Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
Abstract:   (773 Views)
Background: This study evaluates the effect of simultaneous AKT inhibition and cisplatin therapy in changes of Reactive Oxygen Species (ROS) production, apoptosis induction, and cell survival in cisplatinresistant OVCAR3 cell.

Methods: OVCAR3 cancer cells were treated with cisplatin, Ly 294002 (LY), and cisplatin+Ly to investigate the cytotoxicity effect of the mentioned groups via MTT assay. Then, DCFH-DA (2′, 7′- dichlorodihydro fluorescein diacetate) assay kit is used to assess the potential of treated groups in intracellular ROS generation. Protein expression levels of caspase-3, cleaved caspase 3, PI3K, Akt, p-Akt, XIAP, and Survivin are estimated through immunoblotting assay in all three experimental groups.

Results: The results showed that all three treated groups, including cisplatin and Ly alone and coadministration of cisplatin+Ly, could reduce the cell vitality of OVCAR3 cancer cells, induced intracellular production of ROS and increased the expression level of activated caspase 3 and Akt protein, whereas downregulated the phosphorylation of Akt protein. However, the effect of combination therapy was more tangible compared to single therapy and control groups. In contrast, the expression amount of XIAP, Survivin, and PI3K did not show detectable changes in comparison with the control group.

Conclusions: The results showed that the AKT inhibition by Ly could sensitize the OVCAR3 cancer cells to the cisplatin and lower the effective dose of cisplatin through hyperactivation of oxidative stress.
Full-Text [PDF 495 kb]   (352 Downloads)    
Type of Article: Original Article | Subject: Biochemistry
Received: 2021/10/9 | Accepted: 2021/10/17 | Published: 2022/02/7

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