{"title":"Mesoporous Cerium Oxide Nanoparticles with High Scavenging Properties of Reactive Oxygen Species for Treating Age-Related Macular Degeneration","authors":"Seung Woo Choi, Ye Eun Kim, Jaeyun Kim","doi":"10.1002/anbr.202300062","DOIUrl":null,"url":null,"abstract":"<p>Age-related macular degeneration (AMD), the leading cause of vision loss among older individuals, is characterized by damage to photoreceptors and retinal pigment epithelial cells (RPEs). Oxidative stress and chronic inflammation in the retina play notable roles in AMD pathogenesis, rendering them attractive therapeutic targets. Cerium oxide nanoparticles (CeNPs) have shown promise in scavenging reactive oxygen species (ROS) by mimicking antioxidant enzymes, whereas mesoporous materials have emerged as versatile drug carriers. Herein, mesoporous CeNPs (mCeNPs) that integrate the advantages of CeNPs and mesoporous materials are presented. The mCeNPs can be synthesized using 1,1′-carbonyldiimidazole and imidazole in acetone without heating and pressurization. The resulting mCeNPs exhibit mesoporous structures comprising assembled small CeNPs, exerting excellent ROS-scavenging capabilities, biocompatibility, and cytoprotective and anti-inflammatory effects against H<sub>2</sub>O<sub>2</sub>-induced damage in RPEs. Using a sodium iodate-induced AMD mouse model, it is demonstrated that intravitreal mCeNP administration can exhibit disease-preventive effects. These findings indicate the therapeutic potential of mCeNPs against AMD.</p>","PeriodicalId":29975,"journal":{"name":"Advanced Nanobiomed Research","volume":"3 12","pages":""},"PeriodicalIF":4.0000,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/anbr.202300062","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Nanobiomed Research","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/anbr.202300062","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, BIOMEDICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Age-related macular degeneration (AMD), the leading cause of vision loss among older individuals, is characterized by damage to photoreceptors and retinal pigment epithelial cells (RPEs). Oxidative stress and chronic inflammation in the retina play notable roles in AMD pathogenesis, rendering them attractive therapeutic targets. Cerium oxide nanoparticles (CeNPs) have shown promise in scavenging reactive oxygen species (ROS) by mimicking antioxidant enzymes, whereas mesoporous materials have emerged as versatile drug carriers. Herein, mesoporous CeNPs (mCeNPs) that integrate the advantages of CeNPs and mesoporous materials are presented. The mCeNPs can be synthesized using 1,1′-carbonyldiimidazole and imidazole in acetone without heating and pressurization. The resulting mCeNPs exhibit mesoporous structures comprising assembled small CeNPs, exerting excellent ROS-scavenging capabilities, biocompatibility, and cytoprotective and anti-inflammatory effects against H2O2-induced damage in RPEs. Using a sodium iodate-induced AMD mouse model, it is demonstrated that intravitreal mCeNP administration can exhibit disease-preventive effects. These findings indicate the therapeutic potential of mCeNPs against AMD.
期刊介绍：
Advanced NanoBiomed Research will provide an Open Access home for cutting-edge nanomedicine, bioengineering and biomaterials research aimed at improving human health. The journal will capture a broad spectrum of research from increasingly multi- and interdisciplinary fields of the traditional areas of biomedicine, bioengineering and health-related materials science as well as precision and personalized medicine, drug delivery, and artificial intelligence-driven health science.
The scope of Advanced NanoBiomed Research will cover the following key subject areas:
▪ Nanomedicine and nanotechnology, with applications in drug and gene delivery, diagnostics, theranostics, photothermal and photodynamic therapy and multimodal imaging.
▪ Biomaterials, including hydrogels, 2D materials, biopolymers, composites, biodegradable materials, biohybrids and biomimetics (such as artificial cells, exosomes and extracellular vesicles), as well as all organic and inorganic materials for biomedical applications.
▪ Biointerfaces, such as anti-microbial surfaces and coatings, as well as interfaces for cellular engineering, immunoengineering and 3D cell culture.
▪ Biofabrication including (bio)inks and technologies, towards generation of functional tissues and organs.
▪ Tissue engineering and regenerative medicine, including scaffolds and scaffold-free approaches, for bone, ligament, muscle, skin, neural, cardiac tissue engineering and tissue vascularization.
▪ Devices for healthcare applications, disease modelling and treatment, such as diagnostics, lab-on-a-chip, organs-on-a-chip, bioMEMS, bioelectronics, wearables, actuators, soft robotics, and intelligent drug delivery systems.
with a strong focus on applications of these fields, from bench-to-bedside, for treatment of all diseases and disorders, such as infectious, autoimmune, cardiovascular and metabolic diseases, neurological disorders and cancer; including pharmacology and toxicology studies.
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