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Research Article

Cerium oxide nanoparticles protects against acrylamide induced toxicity in HepG2 cells through modulation of oxidative stress

, , , & ORCID Icon
Pages 54-59 | Received 31 Oct 2017, Accepted 13 May 2018, Published online: 06 Jun 2018
 

Abstract

Acrylamide (AA) is a toxic chemical compound found in cooked foods. Considerable evidences suggest that oxidative stress and mitochondrial dysfunction are contributed to AA toxicity. Ceric oxide (CeO2) nanoparticles (nano-ceria) have the potential to be developed as a therapeutic for oxidative stress insults due to their catalytic antioxidant properties. In this study we investigated, whether nano-ceria exerted a protective effect against AA-induced cytotoxicity and oxidative damage. HepG2 human cancer cell lines were exposed to nano-ceria (50, 100, and 200 µM) and after 30 min, AA in the half maximal inhibitory concentration (IC50) concentration (200 µM) was added to the cells. Twenty four hours later, cellular viability, reactive oxygen species (ROS) generation, lipid peroxidation (LPO), and cellular levels of glutathione (GSH) were assayed. AA decreased cell viability and pretreatment with nano-ceria significantly decreased AA-induced cytotoxicity. In addition, nano-ceria alleviated AA-induced ROS generation and LPO and depressed GSH level. Our results suggested that nano-ceria prevented cellular and oxidative damage induced by AA.

Acknowledgements

This study was extracted from Pharm D. thesis of Aala Azari.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was supported by a grant from the Mazandaran University of Medical Sciences, Sari, Iran [grant number 1371].

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