Cerium oxide nanoparticles : a new therapeutic tool in liver diseases
Casals, Gregori (Comission for the Biochemical Assessment of Hepatic Disease-SEQCML)
Perramón, Meritxell (Institut d'Investigacions Biomèdiques August Pi i Sunyer)
Casals, Eudald (Wuyi University. School of Biotechnology and Health Sciences)
Portolés, Irene (Institut d'Investigacions Biomèdiques August Pi i Sunyer)
Fernández-Varo, Guillermo (Institut d'Investigacions Biomèdiques August Pi i Sunyer)
Morales Ruiz, Manuel (Universitat de Barcelona. Departament de Biomedicina)
Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Jiménez, Wladimiro (Universitat de Barcelona. Departament de Biomedicina)

Data:	2021
Resum:	Oxidative stress induced by the overproduction of free radicals or reactive oxygen species (ROS) has been considered as a key pathogenic mechanism contributing to the initiation and progression of injury in liver diseases. Consequently, during the last few years antioxidant substances, such as superoxide dismutase (SOD), resveratrol, colchicine, eugenol, and vitamins E and C have received increasing interest as potential therapeutic agents in chronic liver diseases. These substances have demonstrated their efficacy in equilibrating hepatic ROS metabolism and thereby improving liver functionality. However, many of these agents have not successfully passed the scrutiny of clinical trials for the prevention and treatment of various diseases, mainly due to their unspecificity and consequent uncontrolled side effects, since a minimal level of ROS is needed for normal functioning. Recently, cerium oxide nanoparticles (CeONPs) have emerged as a new powerful antioxidant agent with therapeutic properties in experimental liver disease. CeONPs have been reported to act as a ROS and reactive nitrogen species (RNS) scavenger and to have multi-enzyme mimetic activity, including SOD activity (deprotionation of superoxide anion into oxygen and hydrogen peroxide), catalase activity (conversion of hydrogen peroxide into oxygen and water), and peroxidase activity (reducing hydrogen peroxide into hydroxyl radicals). Consequently, the beneficial effects of CeONPs treatment have been reported in many different medical fields other than hepatology, including neurology, ophthalmology, cardiology, and oncology. Unlike other antioxidants, CeONPs are only active at pathogenic levels of ROS, being inert and innocuous in healthy cells. In the current article, we review the potential of CeONPs in several experimental models of liver disease and their safety as a therapeutic agent in humans as well.
Ajuts:	Agencia Estatal de Investigación PID2019-105502RB Agencia Estatal de Investigación RTI2018-094734-B-C21 Ministerio de Ciencia e Innovación BES-2017-08023 Ministerio de Ciencia e Innovación SAF15-64126-R
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Nanoceria ; Liver steatosis ; Liver regeneration ; Hepatocellular carcinoma
Publicat a:	Antioxidants, Vol. 10, issue 5 (May 2021) , art. 660, ISSN 2076-3921

DOI: 10.3390/antiox10050660
PMID: 33923136

23 p, 12.4 MB

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