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Fu X, Li P, Chen X, Ma Y, Wang R, Ji W, Gu J, Sheng B, Wang Y, Zhang Z. Ceria nanoparticles: biomedical applications and toxicity. J Zhejiang Univ Sci B 2024; 25:361-388. [PMID: 38725338 PMCID: PMC11087188 DOI: 10.1631/jzus.b2300854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/29/2024] [Indexed: 05/13/2024]
Abstract
Ceria nanoparticles (CeO2 NPs) have become popular materials in biomedical and industrial fields due to their potential applications in anti-oxidation, cancer therapy, photocatalytic degradation of pollutants, sensors, etc. Many methods, including gas phase, solid phase, liquid phase, and the newly proposed green synthesis method, have been reported for the synthesis of CeO2 NPs. Due to the wide application of CeO2 NPs, concerns about their adverse impacts on human health have been raised. This review covers recent studies on the biomedical applications of CeO2 NPs, including their use in the treatment of various diseases (e.g., Alzheimer's disease, ischemic stroke, retinal damage, chronic inflammation, and cancer). CeO2 NP toxicity is discussed in terms of the different systems of the human body (e.g., cytotoxicity, genotoxicity, respiratory toxicity, neurotoxicity, and hepatotoxicity). This comprehensive review covers both fundamental discoveries and exploratory progress in CeO2 NP research that may lead to practical developments in the future.
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Affiliation(s)
- Xiaoxuan Fu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Peng Li
- Department of Nephrology, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264005, China
| | - Xi Chen
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Yuanyuan Ma
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Rong Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Wenxuan Ji
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Jiakuo Gu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Bowen Sheng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Yizhou Wang
- Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China. ,
| | - Zhuhong Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China.
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2
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Wong KY, Wong MS, Liu J. Nanozymes for Treating Ocular Diseases. Adv Healthc Mater 2024:e2401309. [PMID: 38738646 DOI: 10.1002/adhm.202401309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/01/2024] [Indexed: 05/14/2024]
Abstract
Nanozymes, characterized by their nanoscale size and enzyme-like catalytic activities, exhibit diverse therapeutic potentials, including anti-oxidative, anti-inflammatory, anti-microbial, and anti-angiogenic effects. These properties make them highly valuable in nanomedicine, particularly ocular therapy, bypassing the need for systemic delivery. Nanozymes show significant promise in tackling multi-factored ocular diseases, particularly those influenced by oxidation and inflammation, like dry eye disease, and age-related macular degeneration. Their small size, coupled with their ease of modification and integration into soft materials, facilitates the effective penetration of ocular barriers, thereby enabling targeted or prolonged therapy within the eye. This review is dedicated to exploring ocular diseases that are intricately linked to oxidation and inflammation, shedding light on the role of nanozymes in managing these conditions. Additionally, recent studies elucidating advanced applications of nanozymes in ocular therapeutics, along with their integration with soft materials for disease management, are discussed. Finally, this review outlines directions for future investigations aimed at bridging the gap between nanozyme research and clinical applications.
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Affiliation(s)
- Ka-Ying Wong
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
- Centre for Eye and Vision Research (CEVR), 17 W Hong Kong Science Park, Hong Kong
| | - Man-Sau Wong
- Centre for Eye and Vision Research (CEVR), 17 W Hong Kong Science Park, Hong Kong
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
- Research Center for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
- Centre for Eye and Vision Research (CEVR), 17 W Hong Kong Science Park, Hong Kong
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3
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Kim YG, Lee Y, Lee N, Soh M, Kim D, Hyeon T. Ceria-Based Therapeutic Antioxidants for Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2210819. [PMID: 36793245 DOI: 10.1002/adma.202210819] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/20/2023] [Indexed: 06/18/2023]
Abstract
The growing interest in nanomedicine over the last 20 years has carved out a research field called "nanocatalytic therapy," where catalytic reactions mediated by nanomaterials are employed to intervene in disease-critical biomolecular processes. Among many kinds of catalytic/enzyme-mimetic nanomaterials investigated thus far, ceria nanoparticles stand out from others owing to their unique scavenging properties against biologically noxious free radicals, including reactive oxygen species (ROS) and reactive nitrogen species (RNS), by exerting enzyme mimicry and nonenzymatic activities. Much effort has been made to utilize ceria nanoparticles as self-regenerating antioxidative and anti-inflammatory agents for various kinds of diseases, given the detrimental effects of ROS and RNS therein that need alleviation. In this context, this review is intended to provide an overview as to what makes ceria nanoparticles merit attention in disease therapy. The introductory part describes the characteristics of ceria nanoparticles as an oxygen-deficient metal oxide. The pathophysiological roles of ROS and RNS are then presented, as well as their scavenging mechanisms by ceria nanoparticles. Representative examples of recent ceria-nanoparticle-based therapeutics are summarized by categorization into organ and disease types, followed by the discussion on the remaining challenges and future research directions.
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Affiliation(s)
- Young Geon Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Yunjung Lee
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Nohyun Lee
- School of Advanced Materials Engineering, Kookmin University, Seoul, 02707, Republic of Korea
| | - Min Soh
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- Center for Advanced Pharmaceutical Technology, HyeonTechNBio, Inc., Seoul, 08826, Republic of Korea
| | - Dokyoon Kim
- Department of Bionano Engineering and Bionanotechnology, Hanyang University, Ansan, 15588, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
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4
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Cupini S, Di Marco S, Boselli L, Cavalli A, Tarricone G, Mastronardi V, Castagnola V, Colombo E, Pompa PP, Benfenati F. Platinum Nanozymes Counteract Photoreceptor Degeneration and Retina Inflammation in a Light-Damage Model of Age-Related Macular Degeneration. ACS NANO 2023; 17:22800-22820. [PMID: 37934489 PMCID: PMC10690844 DOI: 10.1021/acsnano.3c07517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/08/2023]
Abstract
Degeneration of photoreceptors in age-related macular degeneration (AMD) is associated with oxidative stress due to the intense aerobic metabolism of rods and cones that if not properly counterbalanced by endogenous antioxidant mechanisms can precipitate photoreceptor degeneration. In spite of being a priority eye disease for its high incidence in the elderly, no effective treatments for AMD exist. While systemic administration of antioxidants has been unsuccessful in slowing down degeneration, locally administered rare-earth nanoparticles were shown to be effective in preventing retinal photo-oxidative damage. However, because of inherent problems of dispersion in biological media, limited antioxidant power, and short lifetimes, these NPs are still confined to the preclinical stage. Here we propose platinum nanoparticles (PtNPs), potent antioxidant nanozymes, as a therapeutic tool for AMD. PtNPs exhibit high catalytic activity at minimal concentrations and protect primary neurons against oxidative insults and the ensuing apoptosis. We tested the efficacy of intravitreally injected PtNPs in preventing or mitigating light damage produced in dark-reared albino Sprague-Dawley rats by in vivo electroretinography (ERG) and ex vivo retina morphology and electrophysiology. We found that both preventive and postlesional treatments with PtNPs increased the amplitude of ERG responses to light stimuli. Ex vivo recordings demonstrated the selective preservation of ON retinal ganglion cell responses to light stimulation in lesioned retinas treated with PtNPs. PtNPs administered after light damage significantly preserved the number of photoreceptors and inhibited the inflammatory response to degeneration, while the preventive treatment had a milder effect. The data indicate that PtNPs can effectively break the vicious cycle linking oxidative stress, degeneration, and inflammation by exerting antioxidant and anti-inflammatory actions. The increased photoreceptor survival and visual performances in degenerated retinas, together with their high biocompatibility, make PtNPs a potential strategy to cure AMD.
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Affiliation(s)
- Sara Cupini
- Center
for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- Department
of Experimental Medicine, University of
Genova, Viale Benedetto
XV 3, 16132 Genova, Italy
| | - Stefano Di Marco
- Center
for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS
Ospedale Policlinico San Martino, Largo Rossana Benzi 10, 16132 Genova, Italy
| | - Luca Boselli
- Nanobiointeractions
& Nanodiagnostics, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Alessio Cavalli
- Center
for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- Department
of Experimental Medicine, University of
Genova, Viale Benedetto
XV 3, 16132 Genova, Italy
| | - Giulia Tarricone
- Nanobiointeractions
& Nanodiagnostics, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Valentina Mastronardi
- Nanobiointeractions
& Nanodiagnostics, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Valentina Castagnola
- Center
for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS
Ospedale Policlinico San Martino, Largo Rossana Benzi 10, 16132 Genova, Italy
| | - Elisabetta Colombo
- Center
for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS
Ospedale Policlinico San Martino, Largo Rossana Benzi 10, 16132 Genova, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions
& Nanodiagnostics, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Fabio Benfenati
- Center
for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS
Ospedale Policlinico San Martino, Largo Rossana Benzi 10, 16132 Genova, Italy
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5
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Alrobaian M. Pegylated nanoceria: A versatile nanomaterial for noninvasive treatment of retinal diseases. Saudi Pharm J 2023; 31:101761. [PMID: 37705880 PMCID: PMC10495644 DOI: 10.1016/j.jsps.2023.101761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 08/17/2023] [Indexed: 09/15/2023] Open
Abstract
Oxidative stress induced reactive oxygen species has been implicated as the primary molecular mechanism in the pathogenesis of debilitating retinal diseases such as diabetic retinopathy, neovascularization and age-related macular degeneration. Nanoceria (cerium oxide nanoparticles) has recently received much attention, because of its superior and regenerative radical scavenging properties. This review focuses on retinal applications of nanoceria and functionalized nanoceria. Studies in animal models showed that nanoceria possess antioxidant, anti-inflammatory, anti-angiogenic, anti-apoptotic properties and preserves retinal morphology and prevents loss of retinal functions. Nanoceria have been tested in animal models of age-related macular degeneration and neovascularization and their efficacy have been shown to persist for a long time, without any collateral effects. To date, several pharmaceutical formulations of nanoceria have been developed for their prospective clinical ophthalmic applications such as chitosan coated nanoceria, nanoceria loaded into hydrogels, nanoceria embedded in wafers and contact lens and organosilane or polyethylene glycol functionalized nanoceria. Based on their nano size range, ocular permeation could be achieved to allow topical administration of nanoceria. PEGylation of nanoceria represents the key strategy to support eye drop formulation with enhanced corneal permeation, without altering chemical physical properties. Based on their excellent antioxidant properties, nano-size, safety and tolerability, PEGylated nanoceria represent a new potential therapeutic for the treatment.
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Affiliation(s)
- Majed Alrobaian
- Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
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6
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Badia A, Duarri A, Salas A, Rosell J, Ramis J, Gusta MF, Casals E, Zapata MA, Puntes V, García-Arumí J. Repeated Topical Administration of 3 nm Cerium Oxide Nanoparticles Reverts Disease Atrophic Phenotype and Arrests Neovascular Degeneration in AMD Mouse Models. ACS NANO 2023; 17:910-926. [PMID: 36596252 DOI: 10.1021/acsnano.2c05447] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Increased oxidative stress in the retina and retinal pigment epithelium is implicated in age-related macular degeneration (AMD). Antioxidant cerium oxide nanoparticles (CeO2NPs) have been used to treat degenerative retinal pathologies in animal models, although their delivery route is not ideal for chronic patient treatment. In this work, we prepared a formulation for ocular topical delivery that contains small (3 nm), nonaggregated biocompatible CeO2NPs. In vitro results indicate the biocompatible and protective character of the CeO2NPs, reducing oxidative stress in ARPE19 cells and inhibiting neovascularization related to pathological angiogenesis in both HUVEC and in in vitro models of neovascular growth. In the in vivo experiments, we observed the capacity of CeO2NPs to reach the retina after topical delivery and a subsequent reversion of the altered retinal transcriptome of the retinal degenerative mouse model DKOrd8 toward that of healthy control mice, together with signs of decreased inflammation and arrest of degeneration. Furthermore, CeO2NP eye drops' treatment reduced laser-induced choroidal neovascular lesions in mice by lowering VEGF and increasing PEDF levels. These results indicate that CeO2NP eye drops are a beneficial antioxidant and neuroprotective treatment for both dry and wet forms of AMD disease.
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Affiliation(s)
- Anna Badia
- Ophthalmology Research Group, Vall d'Hebron Research Institute (VHIR), Barcelona, 08035, Spain
| | - Anna Duarri
- Ophthalmology Research Group, Vall d'Hebron Research Institute (VHIR), Barcelona, 08035, Spain
| | - Anna Salas
- Ophthalmology Research Group, Vall d'Hebron Research Institute (VHIR), Barcelona, 08035, Spain
| | - Jordi Rosell
- Ophthalmology Research Group, Vall d'Hebron Research Institute (VHIR), Barcelona, 08035, Spain
| | - Joana Ramis
- Pharmacokinetic Nanoparticles Group, Vall d'Hebron Research Institute (VHIR), Barcelona, 08035, Spain
| | - Muriel Freixanet Gusta
- Pharmacokinetic Nanoparticles Group, Vall d'Hebron Research Institute (VHIR), Barcelona, 08035, Spain
| | - Eudald Casals
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, P. R. China
| | - Miguel A Zapata
- Ophthalmology Research Group, Vall d'Hebron Research Institute (VHIR), Barcelona, 08035, Spain
- Department of Ophthalmology, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, 08035, Spain
| | - Victor Puntes
- Pharmacokinetic Nanoparticles Group, Vall d'Hebron Research Institute (VHIR), Barcelona, 08035, Spain
- Instiut Català de Nanociència I Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, 08193, Spain
- Institució Catalana de Recerca I Estudis Avançats (ICREA), Barcelona, 08010,Spain
- Networking Research Centre for Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Josep García-Arumí
- Ophthalmology Research Group, Vall d'Hebron Research Institute (VHIR), Barcelona, 08035, Spain
- Department of Ophthalmology, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, 08035, Spain
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7
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Shin CS, Veettil RA, Sakthivel TS, Adumbumkulath A, Lee R, Zaheer M, Kolanthai E, Seal S, Acharya G. Noninvasive Delivery of Self-Regenerating Cerium Oxide Nanoparticles to Modulate Oxidative Stress in the Retina. ACS APPLIED BIO MATERIALS 2022; 5:5816-5825. [PMID: 36441967 DOI: 10.1021/acsabm.2c00809] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Diseases affecting the retina, such as age-related macular degeneration (AMD), diabetic retinopathy, macular edema, and retinal vein occlusions, are currently treated by the intravitreal injection of drug formulations. These disease pathologies are driven by oxidative damage due to chronic high concentrations of reactive oxygen species (ROS) in the retina. Intravitreal injections often induce retinal detachment, intraocular hemorrhage, and endophthalmitis. Furthermore, the severe eye pain associated with these injections lead to patient noncompliance and treatment discontinuation. Hence, there is a critical need for the development of a noninvasive therapy that is effective for a prolonged period for treating retinal diseases. In this study, we developed a noninvasive cerium oxide nanoparticle (CNP) delivery wafer (Cerawafer) for the modulation of ROS in the retina. We fabricated Cerawafer loaded with CNP and determined its SOD-like enzyme-mimetic activity and ability to neutralize ROS generated in vitro. We demonstrated Cerawafer's ability to deliver CNP in a noninvasive fashion to the retina in healthy mouse eyes and the CNP retention in the retina for more than a week. Our studies have demonstrated the in vivo efficacy of the Cerawafer to modulate ROS and associated down-regulation of VEGF expression in the retinas of very-low-density lipoprotein receptor knockout (vldlr-/-) mouse model. The development of a Cerawafer nanotherapeutic will fulfill a hitherto unmet need. Currently, there is no such therapeutic available, and the development of a Cerawafer nanotherapeutic will be a major advancement in the treatment of retinal diseases.
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Affiliation(s)
- Crystal S Shin
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Remya Ammassam Veettil
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Tamil S Sakthivel
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, Nanoscience Technology Center, University of Central Florida, Orlando, Florida 32816, United States
| | - Aparna Adumbumkulath
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030, United States.,Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77030, United States
| | - Richard Lee
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Mahira Zaheer
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Elayaraja Kolanthai
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, Nanoscience Technology Center, University of Central Florida, Orlando, Florida 32816, United States
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, Nanoscience Technology Center, University of Central Florida, Orlando, Florida 32816, United States.,College of Medicine, Biionix Cluster, University of Central Florida, Orlando, Florida 32827, United States
| | - Ghanashyam Acharya
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030, United States.,Department of Ophthalmology, Baylor College of Medicine, Houston, Texas 77030, United States.,Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77030, United States
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8
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Hu Y, Zhang Q, Garcia-Rojas D, Ling V, Masterson CM, Bi Y, Xiao Z, Guo X, Villanova J, Dunn J, Colvin VL. Increasing the antioxidant capacity of ceria nanoparticles with catechol-grafted poly(ethylene glycol). J Mater Chem B 2022; 10:10042-10053. [PMID: 36156670 DOI: 10.1039/d2tb00779g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Ceria nanoparticles are remarkable antioxidants due to their large cerium(III) content and the possibility of recovering cerium(III) from cerium(IV) after reaction. Here we increase the cerium(III) content of colloidally stable nanoparticles (e.g., nanocrystals) using a reactive polymeric surface coating. Catechol-grafted poly(ethylene glycols) (PEG) polymers of varying lengths and architectures yield materials that are non-aggregating in a variety of aqueous media. Cerium(IV) on the ceria surface both binds and oxidizes the catechol functionality, generating a dark-red colour emblematic of surface-oxidized catechols with a concomitant increase in cerium(III) revealed by X-ray photoemission spectroscopy (XPS). The extent of ceria reduction depends sensitively on the architecture of the coating polymer; small and compact polymer chains pack with high density at the nanoparticle surface yielding the most cerium(III). Nanoparticles with increased surface reduction, quantified by the intensity of their optical absorption and thermogravimetric measures of polymer grafting densities, were more potent antioxidants as measured by a standard TEAC antioxidant assay. For the same core composition nanoparticle antioxidant capacities could be increased over an order of magnitude by tailoring the length and architecture of the reactive surface coatings.
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Affiliation(s)
- Yue Hu
- Department of Chemistry, Brown University, USA.
| | | | | | - Vivian Ling
- Department of Chemistry, Brown University, USA.
| | | | - Yidan Bi
- Department of Chemistry, Brown University, USA.
| | - Zhen Xiao
- Department of Chemistry, Brown University, USA.
| | | | | | - Joshua Dunn
- Department of Chemistry, Brown University, USA.
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9
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Khaligh SF, Asoodeh A. Green synthesis and biological characterization of cerium oxide nanoemulsion against human HT-29 colon cancer cell line. MATERIALS TECHNOLOGY 2022; 37:2318-2338. [DOI: 10.1080/10667857.2022.2031492] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 01/12/2022] [Indexed: 09/22/2023]
Affiliation(s)
| | - Ahmad Asoodeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
- Cellular and Molecular Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
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10
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Lord MS, Berret JF, Singh S, Vinu A, Karakoti AS. Redox Active Cerium Oxide Nanoparticles: Current Status and Burning Issues. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102342. [PMID: 34363314 DOI: 10.1002/smll.202102342] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/09/2021] [Indexed: 06/13/2023]
Abstract
Research on cerium oxide nanoparticles (nanoceria) has captivated the scientific community due to their unique physical and chemical properties, such as redox activity and oxygen buffering capacity, which made them available for many technical applications, including biomedical applications. The redox mimetic antioxidant properties of nanoceria have been effective in the treatment of many diseases caused by reactive oxygen species (ROS) and reactive nitrogen species. The mechanism of ROS scavenging activity of nanoceria is still elusive, and its redox activity is controversial due to mixed reports in the literature showing pro-oxidant and antioxidant activity. In light of its current research interest, it is critical to understand the behavior of nanoceria in the biological environment and provide answers to some of the critical and open issues. This review critically analyzes the status of research on the application of nanoceria to treat diseases caused by ROS. It reviews the proposed mechanism of action and shows the effect of surface coatings on its redox activity. It also discusses some of the crucial issues in deciphering the mechanism and redox activity of nanoceria and suggests areas of future research.
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Affiliation(s)
- Megan S Lord
- Graduate School of Biomedical Engineering, UNSW Sydney, Sydney, New South Wales, 2052, Australia
| | | | - Sanjay Singh
- National Institute of Animal Biotechnology, Hyderabad, Telangana, 500032, India
| | - Ajayan Vinu
- Global Innovative Center for Advanced Nanomaterials, College of Engineering Science and Environment, The University of Newcastle, Callaghan, New South Wales, 2308, Australia
| | - Ajay S Karakoti
- Global Innovative Center for Advanced Nanomaterials, College of Engineering Science and Environment, The University of Newcastle, Callaghan, New South Wales, 2308, Australia
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11
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Tang Z, Huo M, Ju Y, Dai X, Ni N, Liu Y, Gao H, Zhang D, Sun H, Fan X, Chen Y, Gu P. Nanoprotection Against Retinal Pigment Epithelium Degeneration via Ferroptosis Inhibition. SMALL METHODS 2021; 5:e2100848. [PMID: 34928015 DOI: 10.1002/smtd.202100848] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/22/2021] [Indexed: 06/14/2023]
Abstract
Lethal oxidative stress and ferrous ion accumulation-mediated degeneration/death in retinal pigment epithelium (RPE) exert an indispensable impact on retinal degenerative diseases with irreversible visual impairment, especially in age-related macular degeneration (AMD), but corresponding pathogenesis-oriented medical intervention remains controversial. In this study, the potent iron-binding nanoscale Prussian blue analogue KCa[FeIII (CN)6 ] (CaPB) with high biocompatibility is designed to inhibit RPE death and subsequently photoreceptor cell degeneration. In mice, CaPB effectively prevents RPE degeneration and ultimately fulfills superior therapeutic outcomes upon a single intravitreal injection: significant rescue of retinal structures and visual function. Through high-throughput RNA sequencing and sophisticated biochemistry evaluations, the findings initially unveil that CaPB nanoparticles protect against RPE degradation by inhibiting ferroptotic cell fate. Together with the facile, large-scale preparations and in vivo biosafety, it is believed that the synthesized CaPB therapeutic nanoparticles are promising for future clinical treatment of diverse retinal diseases involving pathological iron-dependent ferroptosis, including AMD.
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Affiliation(s)
- Zhimin Tang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Minfeng Huo
- The State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Yahan Ju
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Xiaochan Dai
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Ni Ni
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Yan Liu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Huiqin Gao
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Dandan Zhang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Hao Sun
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Xianqun Fan
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Yu Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Ping Gu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
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12
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Vaneev A, Tikhomirova V, Chesnokova N, Popova E, Beznos O, Kost O, Klyachko N. Nanotechnology for Topical Drug Delivery to the Anterior Segment of the Eye. Int J Mol Sci 2021; 22:12368. [PMID: 34830247 PMCID: PMC8621153 DOI: 10.3390/ijms222212368] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 11/06/2021] [Accepted: 11/15/2021] [Indexed: 02/07/2023] Open
Abstract
Topical drug delivery is one of the most challenging aspects of eye therapy. Eye drops are the most prevalent drug form, especially for widely distributed anterior segment eye diseases (cataracts, glaucoma, dry eye syndrome, inflammatory diseases, etc.), because they are convenient and easy to apply by patients. However, conventional drug formulations are usually characterized by short retention time in the tear film, insufficient contact with epithelium, fast elimination, and difficulties in overcoming ocular tissue barriers. Not more than 5% of the total drug dose administered in eye drops reaches the interior ocular tissues. To overcome the ocular drug delivery barriers and improve drug bioavailability, various conventional and novel drug delivery systems have been developed. Among these, nanosize carriers are the most attractive. The review is focused on the different drug carriers, such as synthetic and natural polymers, as well as inorganic carriers, with special attention to nanoparticles and nanomicelles. Studies in vitro and in vivo have demonstrated that new formulations could help to improve the bioavailability of the drugs, provide sustained drug release, enhance and prolong their therapeutic action. Promising results were obtained with drug-loaded nanoparticles included in in situ gel.
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Affiliation(s)
- Alexander Vaneev
- Chemistry Faculty, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia; (A.V.); (V.T.); (E.P.); (O.K.)
- Research Laboratory of Biophysics, National University of Science and Technology “MISIS”, 119991 Moscow, Russia
| | - Victoria Tikhomirova
- Chemistry Faculty, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia; (A.V.); (V.T.); (E.P.); (O.K.)
| | - Natalia Chesnokova
- Department of Pathophysiology and Biochemistry, Helmholtz National Medical Research Center of Eye Diseases, 105062 Moscow, Russia; (N.C.); (O.B.)
| | - Ekaterina Popova
- Chemistry Faculty, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia; (A.V.); (V.T.); (E.P.); (O.K.)
| | - Olga Beznos
- Department of Pathophysiology and Biochemistry, Helmholtz National Medical Research Center of Eye Diseases, 105062 Moscow, Russia; (N.C.); (O.B.)
| | - Olga Kost
- Chemistry Faculty, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia; (A.V.); (V.T.); (E.P.); (O.K.)
| | - Natalia Klyachko
- Chemistry Faculty, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia; (A.V.); (V.T.); (E.P.); (O.K.)
- Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Research Institute “Nanotechnology and Nanomaterials”, G.R. Derzhavin Tambov State University, 392000 Tambov, Russia
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13
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The Impact of Oxidative Stress on Blood-Retinal Barrier Physiology in Age-Related Macular Degeneration. Cells 2021; 10:cells10010064. [PMID: 33406612 PMCID: PMC7823525 DOI: 10.3390/cells10010064] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/26/2020] [Accepted: 12/30/2020] [Indexed: 02/06/2023] Open
Abstract
The blood retinal barrier (BRB) is a fundamental eye component, whose function is to select the flow of molecules from the blood to the retina and vice-versa, and its integrity allows the maintenance of a finely regulated microenvironment. The outer BRB, composed by the choriocapillaris, the Bruch's membrane, and the retinal pigment epithelium, undergoes structural and functional changes in age-related macular degeneration (AMD), the leading cause of blindness worldwide. BRB alterations lead to retinal dysfunction and neurodegeneration. Several risk factors have been associated with AMD onset in the past decades and oxidative stress is widely recognized as a key factor, even if the exact AMD pathophysiology has not been exactly elucidated yet. The present review describes the BRB physiology, the BRB changes occurring in AMD, the role of oxidative stress in AMD with a focus on the outer BRB structures. Moreover, we propose the use of cerium oxide nanoparticles as a new powerful anti-oxidant agent to combat AMD, based on the relevant existing data which demonstrated their beneficial effects in protecting the outer BRB in animal models of AMD.
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14
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Sadidi H, Hooshmand S, Ahmadabadi A, Javad Hosseini S, Baino F, Vatanpour M, Kargozar S. Cerium Oxide Nanoparticles (Nanoceria): Hopes in Soft Tissue Engineering. Molecules 2020; 25:E4559. [PMID: 33036163 PMCID: PMC7583868 DOI: 10.3390/molecules25194559] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/02/2020] [Accepted: 10/03/2020] [Indexed: 12/13/2022] Open
Abstract
Several biocompatible materials have been applied for managing soft tissue lesions; cerium oxide nanoparticles (CNPs, or nanoceria) are among the most promising candidates due to their outstanding properties, including antioxidant, anti-inflammatory, antibacterial, and angiogenic activities. Much attention should be paid to the physical properties of nanoceria, since most of its biological characteristics are directly determined by some of these relevant parameters, including the particle size and shape. Nanoceria, either in bare or functionalized forms, showed the excellent capability of accelerating the healing process of both acute and chronic wounds. The skin, heart, nervous system, and ophthalmic tissues are the main targets of nanoceria-based therapies, and the other soft tissues may also be evaluated in upcoming experimental studies. For the repair and regeneration of soft tissue damage and defects, nanoceria-incorporated film, hydrogel, and nanofibrous scaffolds have been proven to be highly suitable replacements with satisfactory outcomes. Still, some concerns have remained regarding the long-term effects of nanoceria administration for human tissues and organs, such as its clearance from the vital organs. Moreover, looking at the future, it seems necessary to design and develop three-dimensional (3D) printed scaffolds containing nanoceria for possible use in the concepts of personalized medicine.
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Affiliation(s)
- Hossein Sadidi
- General Surgery Department, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad 9176999311, Iran
| | - Sara Hooshmand
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran
- Department of Pharmacology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran
| | - Ali Ahmadabadi
- Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad 9176999311, Iran
| | - Seyed Javad Hosseini
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine,, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran
| | - Francesco Baino
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Morvarid Vatanpour
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran
| | - Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran
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15
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Stephen Inbaraj B, Chen BH. An overview on recent in vivo biological application of cerium oxide nanoparticles. Asian J Pharm Sci 2020; 15:558-575. [PMID: 33193860 PMCID: PMC7610205 DOI: 10.1016/j.ajps.2019.10.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/25/2019] [Accepted: 10/05/2019] [Indexed: 12/13/2022] Open
Abstract
Cerium oxide nanoparticles (CNPs) possess a great potential as therapeutic agents due to their ability to self-regenerate by reversibly switching between two valences +3 and +4. This article reviews recent articles dealing with in vivo studies of CNPs towards Alzheimer's disease, obesity, liver inflammation, cancer, sepsis, amyotrophic lateral sclerosis, acute kidney injury, radiation-induced tissue damage, hepatic ischemia reperfusion injury, retinal diseases and constipation. In vivo anti-cancer studies revealed the effectiveness of CNPs to reduce tumor growth and angiogenesis in melanoma, ovarian, breast and retinoblastoma cancer cell-induced mice, with their conjugation with folic acid, doxorubicin, CPM, or CXC receptor-4 antagonist ligand eliciting higher efficiency. After conjugation with triphenylphosphonium or magnetite nanoparticles, CNPs were shown to combat Alzheimer's disease by reducing amyloid-β, glial fibrillary acidic protein, inflammatory and oxidative stress markers in mice. By improving muscle function and longevity, the citrate/EDTA-stabilized CNPs could ameliorate amyotrophic lateral sclerosis. Also, they could effectively reduce obesity in mice by scavenging ROS and reducing adipogenesis, triglyceride synthesis, GAPDH enzyme activity, leptin and insulin levels. In CCl4-induced rats, stress signaling pathways due to inflammatory cytokines, liver enzymes, oxidative and endoplasmic reticulum messengers could be attenuated by CNPs. Commercial CNPs showed protective effects on rats with hepatic ischemia reperfusion and peritonitis-induced hepatic/cardiac injuries by decreasing oxidative stress and hepatic/cardiac inflammation. The same CNPs could improve kidney function by diminishing renal superoxide, hyperglycemia and tubular damage in peritonitis-induced acute kidney injury in rats. Radiation-induced lung and testicular tissue damage could be alleviated in mice, with the former showing improvement in pulmonary distress and bronchoconstriction and the latter exhibiting restoration in spermatogenesis rate and spermatid/spermatocyte number. Through enhancement of gastrointestinal motility, the CNPs could alleviate constipation in both young and old rats. They could also protect rat from light-induced retinal damage by slowing down neurodegenerative process and microglial activation.
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Affiliation(s)
| | - Bing-Huei Chen
- Department of Food Science, Fu Jen Catholic University, Taipei 242
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16
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Kieffer J, Singh S, Dhillon BS, Kumar U, Shaikh S, Ho S, Seal S. Ceria Nanoparticles Mitigate the Iron Oxidative Toxicity of Human Retinal Pigment Epithelium. Cureus 2020; 12:e9675. [PMID: 32923270 PMCID: PMC7485992 DOI: 10.7759/cureus.9675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 08/11/2020] [Indexed: 01/26/2023] Open
Abstract
Oxidative injury is implicated in retinal damage observed in age-related macular degeneration (AMD), as well as other degenerative conditions. Abnormally elevated levels of iron accumulation within the retinal pigment epithelium have been detected in eyes with AMD, and it is suspected to play a role in the pathogenesis through the production of reactive oxygen species (ROS). Ceria nanoparticles (CNP) have the ability to scavenge ROS. This study sought to evaluate the ability of CNP to mitigate iron-induced oxidative stress and assess cell viability in the human ARPE-19 cell line in vitro. Cell viability was measured by an MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and compared between experimental groups undergoing 48-hr exposure to a ferrous iron solution with and without 24-hr CNP pre-treatment. The CNP effect on ROS formation was evaluated additionally by H2DCFDA (2,7-dichlorodihydrofluorescein diacetate) fluorescent probe assay and superoxide dismutase assay. CNP demonstrated a three-fold increase in cell viability and a reduction in ROS generation. The results show a promising treatment modality for diseases causing oxidative damage in the eye.
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Affiliation(s)
- Jason Kieffer
- Ophthalmology, University of Central Florida College of Medicine, Orlando, USA
| | - Sushant Singh
- Advanced Materials Processing and Analysis Center, Nanoscience Technology Center, Dept. of Materials Science and Engineering, University of Central Florida, Orlando, USA
| | - Baltej S Dhillon
- Ophthalmology, University of Central Florida College of Medicine, Orlando, USA
| | - Udit Kumar
- Advanced Materials Processing and Analysis Center, Nanoscience Technology Center, Dept. of Materials Science and Engineering, University of Central Florida, Orlando, USA
| | - Saad Shaikh
- Ophthalmology, University of Central Florida College of Medicine, Orlando, USA
| | - Son Ho
- Ophthalmology, Orlando VA Medical Center, Orlando, USA
- Ophthalmology, University of Central Florida College of Medicine, Orlando, USA
| | - Sudipta Seal
- Materials Science Engineering, Advanced Materials Processing and Analysis Center, Nanoscience Technology Center, Dept. of Materials Science and Engineering, University of Central Florida, Orlando, USA
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Tisi A, Flati V, Delle Monache S, Lozzi L, Passacantando M, Maccarone R. Nanoceria Particles Are an Eligible Candidate to Prevent Age-Related Macular Degeneration by Inhibiting Retinal Pigment Epithelium Cell Death and Autophagy Alterations. Cells 2020; 9:cells9071617. [PMID: 32635502 PMCID: PMC7408137 DOI: 10.3390/cells9071617] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 12/17/2022] Open
Abstract
Retinal pigment epithelium (RPE) dysfunction and degeneration underlie the development of age-related macular degeneration (AMD), which is the leading cause of blindness worldwide. In this study, we investigated whether cerium oxide nanoparticles (CeO2-NPs or nanoceria), which are anti-oxidant agents with auto-regenerative properties, are able to preserve the RPE. On ARPE-19 cells, we found that CeO2-NPs promoted cell viability against H2O2-induced cellular damage. For the in vivo studies, we used a rat model of acute light damage (LD), which mimics many features of AMD. CeO2-NPs intravitreally injected three days before LD prevented RPE cell death and degeneration and nanoceria labelled with fluorescein were found localized in the cytoplasm of RPE cells. CeO2-NPs inhibited epithelial-mesenchymal transition of RPE cells and modulated autophagy by the down-regulation of LC3B-II and p62. Moreover, the treatment inhibited nuclear localization of LC3B. Taken together, our study demonstrates that CeO2-NPs represent an eligible candidate to counteract RPE degeneration and, therefore, a powerful therapy for AMD.
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Affiliation(s)
- Annamaria Tisi
- Department of Biotechnology and Applied Clinical Sciences, University of L’Aquila, via Vetoio, Coppito 2, 67100 L’Aquila, Italy; (A.T.); (V.F.); (S.D.M.)
| | - Vincenzo Flati
- Department of Biotechnology and Applied Clinical Sciences, University of L’Aquila, via Vetoio, Coppito 2, 67100 L’Aquila, Italy; (A.T.); (V.F.); (S.D.M.)
| | - Simona Delle Monache
- Department of Biotechnology and Applied Clinical Sciences, University of L’Aquila, via Vetoio, Coppito 2, 67100 L’Aquila, Italy; (A.T.); (V.F.); (S.D.M.)
| | - Luca Lozzi
- Department of Physical and Chemical Sciences, University of L’Aquila, via Vetoio, Coppito 1, 67100 L’Aquila, Italy; (L.L.); (M.P.)
| | - Maurizio Passacantando
- Department of Physical and Chemical Sciences, University of L’Aquila, via Vetoio, Coppito 1, 67100 L’Aquila, Italy; (L.L.); (M.P.)
| | - Rita Maccarone
- Department of Biotechnology and Applied Clinical Sciences, University of L’Aquila, via Vetoio, Coppito 2, 67100 L’Aquila, Italy; (A.T.); (V.F.); (S.D.M.)
- Correspondence: ; Tel.: +39-0862433488
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18
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Zavvari F, Nahavandi A, Shahbazi A. Neuroprotective effects of cerium oxide nanoparticles on experimental stress-induced depression in male rats. J Chem Neuroanat 2020; 106:101799. [DOI: 10.1016/j.jchemneu.2020.101799] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/19/2020] [Accepted: 04/20/2020] [Indexed: 12/12/2022]
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19
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Abstract
Retinal diseases, such as age-related macular degeneration and diabetic retinopathy, are the leading causes of blindness worldwide. The mainstay of treatment for these blinding diseases remains to be surgery, and the available pharmaceutical therapies on the market are limited, partially owing to various biological barriers in hindering the delivery of therapeutics to the retina. The nanoparticulate drug delivery system confers the capability for delivering therapeutics to the specific ocular targets and, hence, potentially revolutionizes the current treatment landscape of retinal diseases. While the research to date indicates the enormous therapeutics potentials of the nanoparticulate delivery systems, the successful translation of these systems from the bench to bedside is challenging and requires a combined understanding of retinal pathology, physiology of the eye, and particle and formulation designs of nanoparticles. To this end, the review begins with an overview of the most prevalent retinal diseases and related pharmacotherapy. Highlights of the current challenges encountered in ocular drug delivery for each administration route are provided, followed by critical appraisal of various nanoparticulate drug delivery systems for the retinal diseases, including their formulation designs, therapeutic merits, limitations, and future direction. It is believed that a greater understanding of the nano-biointeraction in eyes will lead to the development of more sophisticated drug delivery systems for retinal diseases.
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Affiliation(s)
- Qingqing Li
- Faculty of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jingwen Weng
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Si Nga Wong
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Wai Yip Thomas Lee
- Aptorum Group Limited, Unit 232, 12 Science Park West Avenue, Hong Kong Science Park, Shatin New Town, Hong Kong
| | - Shing Fung Chow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
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20
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Li CW, Li LL, Chen S, Zhang JX, Lu WL. Antioxidant Nanotherapies for the Treatment of Inflammatory Diseases. Front Bioeng Biotechnol 2020; 8:200. [PMID: 32258013 PMCID: PMC7093330 DOI: 10.3389/fbioe.2020.00200] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 02/28/2020] [Indexed: 12/11/2022] Open
Abstract
Reactive oxygen species (ROS) are essential in regulating various physiological functions. However, overproduction of ROS is implicated in the pathogenesis of various inflammatory diseases. Antioxidant therapy has thus represented an effective strategy for the treatment of oxidative stress relevant inflammatory diseases. Conventional anti-oxidative agents showed limited in vivo effects owing to their non-specific distribution and low retention in disease sites. Over the past decades, significant achievements have been made in the development of antioxidant nanotherapies that exhibit multiple advantages such as excellent pharmacokinetics, stable anti-oxidative activity, and intrinsic ROS-scavenging properties. This review provides a comprehensive overview on recent advances in antioxidant nanotherapies, including ROS-scavenging inorganic nanoparticles, organic nanoparticles with intrinsic antioxidant activity, and drug-loaded anti-oxidant nanoparticles. We highlight the biomedical applications of antioxidant nanotherapies in the treatment of different inflammatory diseases, with an emphasis on inflammatory bowel disease, cardiovascular disease, and brain diseases. Current challenges and future perspectives to promote clinical translation of antioxidant nanotherapies are also briefly discussed.
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Affiliation(s)
- Chen-Wen Li
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing, China
| | - Lan-Lan Li
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing, China.,Department of Chemistry, College of Basic Medicine, Third Military Medical University, Chongqing, China
| | - Sheng Chen
- Department of Pediatrics, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jian-Xiang Zhang
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing, China
| | - Wan-Liang Lu
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
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21
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Maccarone R, Tisi A, Passacantando M, Ciancaglini M. Ophthalmic Applications of Cerium Oxide Nanoparticles. J Ocul Pharmacol Ther 2019; 36:376-383. [PMID: 31891528 DOI: 10.1089/jop.2019.0105] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cerium oxide nanoparticles (CeO2-NPs; or nanoceria) have been largely studied for biomedical applications due to their peculiar auto-regenerative antioxidant activity. This review focuses on ophthalmic applications of nanoceria. Many in vivo data indicate that nanoceria protect the retina from neurodegeneration. In particular, they have been tested in animal models of age-related macular degeneration and retinitis pigmentosa and their neuroprotective properties have been shown to persist for a long time, without any collateral effects. In vitro cytotoxicity studies have shown that CeO2-NPs could be safe for lens cells and could represent a new therapy for cataract treatment, but further studies are needed. To date, different pharmaceutical formulations based on nanoceria have been created looking at future clinical ophthalmic applications, such as water-soluble nanoceria, glycol chitosan-coated ceria nanoparticles (GCCNPs), and alginate-gelatin hydrogel loaded GCCNPs. GCCNPs were also effective in preventing choroidal neovascularization in vivo. Based on the nanosize of nanoceria, corneal permeation could be achieved to allow topical treatment of nanoceria. PEGylation and encapsulation in liposomes represent the main strategies to support corneal permeation, without altering nanoceria chemical-physical properties. Based on their great antioxidant properties, safety, and nanosize, nanoceria represent a new potential therapeutic for the treatment of several eye disorders.
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Affiliation(s)
- Rita Maccarone
- Department of Biotechnology and Applied Clinical Sciences, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Annamaria Tisi
- Department of Biotechnology and Applied Clinical Sciences, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Maurizio Passacantando
- Department of Physical and Chemical Science, and Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Marco Ciancaglini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
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22
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Tisi A, Passacantando M, Ciancaglini M, Maccarone R. Nanoceria neuroprotective effects in the light-damaged retina: A focus on retinal function and microglia activation. Exp Eye Res 2019; 188:107797. [PMID: 31520599 DOI: 10.1016/j.exer.2019.107797] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 11/18/2022]
Abstract
The use of nanomaterials is an emerging therapeutic approach for the treatment of several pathologies. Cerium oxide nanoparticles have been studied for biomedical application, including neurodegenerative disorders, such as age-related macular degeneration in several animal models. The light damage model is characterised by oxidative stress upregulation followed by photoreceptor death and microglia activation in the outer retina. For this reason, the light damage model mimics some aspects involved in human age-related macular degeneration pathogenesis. In this review, we focus on the neuroprotective effects on retinal function and microglia activation in the light damage model, considering the administration of the nanoparticles both before and after the injury. The electrical responses of the retina and the microglia number and morphology are clearly modulated by the treatment, supporting the beneficial effects of cerium oxide nanoparticles to counteract the degeneration processes in the retina.
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Affiliation(s)
- A Tisi
- Department of Biotechnology and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, Coppito 2, 67100, L'Aquila, Italy.
| | - M Passacantando
- Department of Physical and Chemical Science, University of L'Aquila, Via Vetoio, Coppito 1, 67100, L'Aquila, Italy.
| | - M Ciancaglini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Piazzale Salvatore Tommasi 1, Blocco 11, 67100, L'Aquila, Italy.
| | - R Maccarone
- Department of Biotechnology and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, Coppito 2, 67100, L'Aquila, Italy.
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23
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Zhu S, Gong L, Li Y, Xu H, Gu Z, Zhao Y. Safety Assessment of Nanomaterials to Eyes: An Important but Neglected Issue. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1802289. [PMID: 31453052 PMCID: PMC6702629 DOI: 10.1002/advs.201802289] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 05/28/2019] [Indexed: 05/19/2023]
Abstract
The production and application of nanomaterials have grown tremendously during last few decades. The widespread exposure of nanoparticles to the public is provoking great concerns regarding their toxicity to the human body. However, in comparison with the extensive studies carried out to examine nanoparticle toxicity to the human body/organs, one especially vulnerable organ, the eye, is always neglected. Although it is a small part of the body, 90% of outside information is obtained via the ocular system. In addition, eyes usually directly interact with the surrounding environment, which may get severer damage from toxic nanoparticles compared to inner organs. Therefore, the study of assessing the potential nanoparticle toxicity to the eyes is of great importance. Here, the recent advance of some representative manufactured nanomaterials on ocular toxicity is summarized. First, a brief introduction of ocular anatomy and disorders related to particulate matter exposure is presented. Following, the factors that may influence toxicity of nanoparticles to the eye are emphasized. Next, the studies of representative manufactured nanoparticles on eye toxicity are summarized and classified. Finally, the limitations that are associated with current nanoparticle-eye toxicity research are proposed.
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Affiliation(s)
- Shuang Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049China
| | - Linji Gong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049China
- College of Materials Science and Optoelectronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Yijian Li
- Southwest Eye HospitalSouthwest HospitalThird Military Medical University (Army Medical University)Chongqing400038China
| | - Haiwei Xu
- Southwest Eye HospitalSouthwest HospitalThird Military Medical University (Army Medical University)Chongqing400038China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049China
- College of Materials Science and Optoelectronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049China
- College of Materials Science and Optoelectronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
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Thakur N, Manna P, Das J. Synthesis and biomedical applications of nanoceria, a redox active nanoparticle. J Nanobiotechnology 2019; 17:84. [PMID: 31291944 PMCID: PMC6617741 DOI: 10.1186/s12951-019-0516-9] [Citation(s) in RCA: 131] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/04/2019] [Indexed: 12/19/2022] Open
Abstract
Background Nanoceria has recently received much attention, because of its widespread biomedical applications, including antibacterial, antioxidant and anticancer activity, drug/gene delivery systems, anti-diabetic property, and tissue engineering. Main body Nanoceria exhibits excellent antibacterial activity against both Gram-positive and Gram-negative bacteria via the generation of reactive oxygen species (ROS). In healthy cells, it acts as an antioxidant by scavenging ROS (at physiological pH). Thus, it protects them, while in cancer cells (under low pH environment) it acts as pro-oxidant by generating ROS and kills them. Nanoceria has also been effectively used as a carrier for targeted drug and gene delivery in vitro and in vivo models. Besides, nanoceria can also act as an antidiabetic agent and confer protection towards diabetes-associated organ pathophysiology via decreasing the ROS level in diabetic subjects. Nanoceria also possesses excellent potential in the field of tissue engineering. In this review, firstly, we have discussed the different methods used for the synthesis of nanoceria as these are very important to control the size, shape and Ce3+/Ce4+ ratio of the particles upon which the physical, chemical, and biological properties depend. Secondly, we have extensively reviewed the different biomedical applications of nanoceria with probable mechanisms based on the literature reports. Conclusion The outcome of this review will improve the understanding about the different synthetic procedures and biomedical applications of nanoceria, which should, in turn, lead to the design of novel clinical interventions associated with various health disorders.
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Affiliation(s)
- Neelam Thakur
- School of Chemistry, Shoolini University of Biotechnology and Management Sciences, Bajhol, PO Sultanpur, Distt., Solan, 173229, HP, India
| | - Prasenjit Manna
- Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, 785006, India.
| | - Joydeep Das
- School of Chemistry, Shoolini University of Biotechnology and Management Sciences, Bajhol, PO Sultanpur, Distt., Solan, 173229, HP, India.
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Yokel RA, Hancock ML, Grulke EA, Unrine JM, Dozier AK, Graham UM. Carboxylic acids accelerate acidic environment-mediated nanoceria dissolution. Nanotoxicology 2019; 13:455-475. [PMID: 30729879 PMCID: PMC6609459 DOI: 10.1080/17435390.2018.1553251] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/21/2018] [Accepted: 11/22/2018] [Indexed: 12/13/2022]
Abstract
Ligands that accelerate nanoceria dissolution may greatly affect its fate and effects. This project assessed the carboxylic acid contribution to nanoceria dissolution in aqueous, acidic environments. Nanoceria has commercial and potential therapeutic and energy storage applications. It biotransforms in vivo. Citric acid stabilizes nanoceria during synthesis and in aqueous dispersions. In this study, citrate-stabilized nanoceria dispersions (∼4 nm average primary particle size) were loaded into dialysis cassettes whose membranes passed cerium salts but not nanoceria particles. The cassettes were immersed in iso-osmotic baths containing carboxylic acids at pH 4.5 and 37 °C, or other select agents. Cerium atom material balances were conducted for the cassette and bath by sampling of each chamber and cerium quantitation by ICP-MS. Samples were collected from the cassette for high-resolution transmission electron microscopy observation of nanoceria size. In carboxylic acid solutions, nanoceria dissolution increased bath cerium concentration to >96% of the cerium introduced as nanoceria into the cassette and decreased nanoceria primary particle size in the cassette. In solutions of citric, malic, and lactic acids and the ammonium ion ∼15 nm, ceria agglomerates persisted. In solutions of other carboxylic acids, some select nanoceria agglomerates grew to ∼1 micron. In carboxylic acid solutions, dissolution half-lives were 800-4000 h; in water and horseradish peroxidase they were ≥55,000 h. Extending these findings to in vivo and environmental systems, one expects acidic environments containing carboxylic acids to degrade nanoceria by dissolution; two examples would be phagolysosomes and in the plant rhizosphere.
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Affiliation(s)
- Robert A. Yokel
- Pharmaceutical Sciences, University of Kentucky, Lexington, KY
| | | | - Eric A. Grulke
- Chemical & Materials Engineering, University of Kentucky, Lexington, KY
| | - Jason M. Unrine
- Plant and Soil Sciences, University of Kentucky, Lexington, KY
| | | | - Uschi M. Graham
- Pharmaceutical Sciences, University of Kentucky, Lexington, KY
- CDC/NIOSH, Cincinnati, OH
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Khorrami MB, Sadeghnia HR, Pasdar A, Ghayour-Mobarhan M, Riahi-Zanjani B, Hashemzadeh A, Zare M, Darroudi M. Antioxidant and toxicity studies of biosynthesized cerium oxide nanoparticles in rats. Int J Nanomedicine 2019; 14:2915-2926. [PMID: 31114200 PMCID: PMC6487897 DOI: 10.2147/ijn.s194192] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The purpose of this study was to investigate the acute toxic potential of cerium oxide nanoparticles (CNPs) synthesized by pullulan in adult male Wistar rats. PATIENTS AND METHODS Thirty male Wistar rats randomly were divided into five experimental groups of six animals each. The animals were received 50, 100, 200, and 400 mg/kg CNPs for 14 consecutive days. At the end of the experiment, the rats were euthanized and histopathological evaluation of the liver and renal tissues, as well ass, the markers of serum oxidative stress including thiobarbituric acid reactive substances, total sulfhydryl content, and antioxidant capacity (using ferric reducing/antioxidant power assay) were assessed. Hematological parameters and the activity of liver function enzymes were also measured. RESULTS The results of this study showed that CNPs caused no significant changes in the activity of liver enzymes, hepatic and renal histopathology and hematological parameters, while significantly improved serum redox status. CONCLUSION Acute administration of pullulan-mediated CNPs is safe and possess antioxidant activity.
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Affiliation(s)
- Mohammad Bagher Khorrami
- Department of Modern Sciences and Technologies, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Social Security Organization, 17th Shahrivar Hospital, Mashhad, Iran
| | - Hamid Reza Sadeghnia
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran,
| | - Alireza Pasdar
- Department of Modern Sciences and Technologies, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Division of Applied Medicine, Medical School, University of Aberdeen, Aberdeen, UK
| | - Majid Ghayour-Mobarhan
- Biochemistry of Nutrition Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bamdad Riahi-Zanjani
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Hashemzadeh
- NanoBioEletrochemistry Research Center, Bam University of Medical Sciences, Bam, Iran
| | - Mohammad Zare
- Social Security Organization, 17th Shahrivar Hospital, Mashhad, Iran
| | - Majid Darroudi
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran,
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Molinari M, Symington AR, Sayle DC, Sakthivel TS, Seal S, Parker SC. Computer-Aided Design of Nanoceria Structures as Enzyme Mimetic Agents: The Role of Bodily Electrolytes on Maximizing Their Activity. ACS APPLIED BIO MATERIALS 2019; 2:1098-1106. [DOI: 10.1021/acsabm.8b00709] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Marco Molinari
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, United Kingdom
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Adam R. Symington
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Dean C. Sayle
- School of Physical Sciences, University of Kent, Canterbury, Kent CT2 7NH, United Kingdom
| | - Tamil S. Sakthivel
- Department of Materials Science and Engineering, Advanced Materials Processing and Analysis Center, Nanoscience and Tehcnology Center, University of Central Florida, Orlando, Florida 32816, United States
| | - Sudipta Seal
- Department of Materials Science and Engineering, Advanced Materials Processing and Analysis Center, Nanoscience and Tehcnology Center, University of Central Florida, Orlando, Florida 32816, United States
- College of Medicine, University of Central Florida, Orlando, Florida 32827, United States
| | - Stephen C. Parker
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
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Wong LL, Barkam S, Seal S, McGinnis JF. Temporal Distribution Patterns of Alexa Fluor 647-Conjugated CeNPs in the Mouse Retina After a Single Intravitreal Injection. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1185:125-130. [PMID: 31884600 DOI: 10.1007/978-3-030-27378-1_21] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Intravitreal (IVT) injection of ophthalmic therapeutics is the most widely used drug delivery route to the posterior segment of the eye. We employed this method to deliver our inorganic, catalytic antioxidant, cerium oxide nanoparticles (CeNPs), to rodent models of retinal degeneration. A single IVT of CeNPs delays disease progression. Even though we have shown that our synthesized CeNPs are retained in the retina for over a year, we still do not know which cell types in the retina preferentially take up these nanoparticles. In this study, we examined the temporal and spatial distribution of fluorescently labeled CeNPs in retinal sections after IVT. We detected elevated fluorescent signals in all the layers where retinal neurons and glia reside and retinal pigment epithelium (RPE) up to 90 days post injection. Additionally, we found that free fluorochrome accumulated in retinal vasculature instead of retinal cells. These data suggested that CeNP-conjugation mediated the targeting of the fluorochrome to retinal cells. We propose that CeNPs can be deployed as ophthalmic carriers to the retina.
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Affiliation(s)
- Lily L Wong
- Department of Ophthalmology, College of Medicine, University of Oklahoma Health Sciences Center and Dean McGee Eye Institute, Oklahoma City, OK, USA. .,Genes and Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA.
| | | | - Sudipta Seal
- Department of Materials Science and Advanced Materials Processing and Analysis Center, NanoScience Technology Center, and College of Medicine, University of Central Florida, Orlando, FL, USA
| | - James F McGinnis
- Department of Ophthalmology, College of Medicine, University of Oklahoma Health Sciences Center and Dean McGee Eye Institute, Oklahoma City, OK, USA
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Wang K, Mitra RN, Zheng M, Han Z. Nanoceria-loaded injectable hydrogels for potential age-related macular degeneration treatment. J Biomed Mater Res A 2018; 106:2795-2804. [PMID: 29752862 PMCID: PMC6231995 DOI: 10.1002/jbm.a.36450] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/03/2018] [Indexed: 12/24/2022]
Abstract
The major purpose of this article is to evaluate oligochitosan coated cerium oxide nanoparticles (OCCNPs) alginate laden injectable hydrogels and their potential treatment for age-related macular degeneration (AMD). The water soluble OCCNPs were loaded within injectable hydrogels as antioxidative agents. The release of OCCNPs from hydrogel, radical scavenging properties, and biocompatibility were evaluated and calculated in vitro. The effects of OCCNP laden hydrogel downregulating expression of angiogenic proteins and proinflammatory cytokines were quantified in human retinal pigment epithlium-19 (ARPE-19) and umbilical endothelium cell lines. The hydrogels behaved with moderate swelling and controllable degradation. The laden OCCNPs were released in a controlled manner in vitro during two months of testing. The OCCNP loaded hydrogels exhibited robust antioxidative properties in oxygen radical absorbance capacity tests and reduced apoptosis in H2 O2 -induced ARPE-19 cells. Furthermore, OCCNP loaded injectable hydrogels are biocompatible and suppressed the ipopolysaccharides-induced inflammation response in ARPE-19 cells, and inhibited expression of vascular endothelium growth factor in human ARPE-19 and umbilical endothelium cell lines. The alginate-gelatin injectable hydrogel loaded OCCNPs are biocompatible and have high potential in protecting cells from apoptosis, angiogenesis, and production of proinflammatory cytokines in AMD cellular models. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 2795-2804, 2018.
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Affiliation(s)
- Kai Wang
- Department of Ophthalmology, the University of North Carolina, Chapel Hill, NC 27599 USA
| | - Rajendra Narayan Mitra
- Department of Ophthalmology, the University of North Carolina, Chapel Hill, NC 27599 USA
| | - Min Zheng
- Department of Ophthalmology, the University of North Carolina, Chapel Hill, NC 27599 USA
| | - Zongchao Han
- Department of Ophthalmology, the University of North Carolina, Chapel Hill, NC 27599 USA
- Carolina Institute for NanoMedicine, the University of North Carolina, Chapel Hill, NC 27599 USA
- Division of Pharmacoengineering & Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina, Chapel Hill, NC 27599 USA
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Genchi GG, Marino A, Grillone A, Pezzini I, Ciofani G. Remote Control of Cellular Functions: The Role of Smart Nanomaterials in the Medicine of the Future. Adv Healthc Mater 2017; 6. [PMID: 28338285 DOI: 10.1002/adhm.201700002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 02/13/2017] [Indexed: 12/15/2022]
Abstract
The remote control of cellular functions through smart nanomaterials represents a biomanipulation approach with unprecedented potential applications in many fields of medicine, ranging from cancer therapy to tissue engineering. By actively responding to external stimuli, smart nanomaterials act as real nanotransducers able to mediate and/or convert different forms of energy into both physical and chemical cues, fostering specific cell behaviors. This report describes those classes of nanomaterials that have mostly paved the way to a "wireless" control of biological phenomena, focusing the discussion on some examples close to the clinical practice. In particular, magnetic fields, light irradiation, ultrasound, and pH will be presented as means to manipulate the cellular fate, due to the peculiar physical/chemical properties of some smart nanoparticles, thus providing realistic examples of "nanorobots" approaching the visionary ideas of Richard Feynman.
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Affiliation(s)
- Giada Graziana Genchi
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025, Pontedera (Pisa), Italy
| | - Attilio Marino
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025, Pontedera (Pisa), Italy
| | - Agostina Grillone
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025, Pontedera (Pisa), Italy
- Scuola Superiore Sant'Anna, The BioRobotics Institute, Viale Rinaldo Piaggio 34, 56025, Pontedera (Pisa), Italy
| | - Ilaria Pezzini
- Scuola Superiore Sant'Anna, The BioRobotics Institute, Viale Rinaldo Piaggio 34, 56025, Pontedera (Pisa), Italy
| | - Gianni Ciofani
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025, Pontedera (Pisa), Italy
- Politecnico di Torino, Department of Aerospace and Mechanical Engineering, Corso Duca degli Abruzzi 24, 10129, Torino, Italy
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Cai X, Seal S, McGinnis JF. Non-toxic retention of nanoceria in murine eyes. Mol Vis 2016; 22:1176-1187. [PMID: 27746672 PMCID: PMC5063092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 10/10/2016] [Indexed: 11/24/2022] Open
Abstract
PURPOSE We have shown that cerium oxide nanoparticles (nanoceria), with unique characteristics and catalytic activities, are retained in the retina for more than 1 year after a single intravitreal injection and can be potentially used for the treatment of a variety of eye diseases. The objective of this study is to determine whether the retention of nanoceria in the eye causes inflammation or adverse side effects. METHODS Wild-type (C57BL/6J) mice at P30 were intravitreally injected with several concentrations of nanoceria. The health of the photoreceptors was assessed by analyzing the expression of photoreceptor-specific genes, and the retinal structure and function. The effect of nanoceria was investigated by analyzing of the vascular system, the expression of inflammatory cytokines, and cellular infiltration into the eye. RESULTS Our data showed that there were no changes in the retinal structure or function, or cytokine gene expression following a single intravitreal injection of nanoceria. CONCLUSIONS Nanoceria, at doses ranging from 17.2 ng to 1720 ng per eye, do not cause any damage to the retinal structure and function by 30 days post injection. No cellular infiltration and no increases in inflammatory responses were found in the eyes. Our data indicate that nanoceria are safe to use for treatment of a variety of eye diseases.
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Affiliation(s)
- Xue Cai
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Sudipta Seal
- Advanced Materials Processing Analysis Center, Mechanical Materials Aerospace Eng., Nanosci. and Tech. Ctr., University of Central Florida, Orlando, FL
| | - James F. McGinnis
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK,Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK,Oklahoma Neuroscience Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK
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Nanocerium oxide increases the survival of adult rod and cone photoreceptor in culture by abrogating hydrogen peroxide-induced oxidative stress. Biointerphases 2016; 11:031016. [PMID: 27782496 DOI: 10.1116/1.4962263] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In vitro cell culture system for adult rod and cone photoreceptor (PR) is an effective and economical model for screening drug candidates against all kinds of age related retinal blindness. Interestingly, adult PR cells have a limited survival in the culture system, thus preventing full exploitation of this in vitro approach for drug screening applications. The limited survival of the adult PR cells in culture is due to their inherently high oxidative stress and photic injury. Mixed valence-state ceria nanoparticles have the ability to scavenge free radicals and reduce oxidative stress. Here, ceria nanoparticles of 5-10 nm dimensions have been synthesized, possessing dual oxidation state (+3 and +4) as evident from x-ray photoelectron spectroscopy and exhibiting real time reduction of hydrogen peroxide (H2O2) as quantified by absorbance spectroscopy and cyclic voltammogram analysis. Using flow cytometry and cell culture assay, it has been shown that, upon one time addition of 10 nM of nanoceria in the PR culture of the 18 months old adult common carp (Cyprinus carpio) at the time of plating the cells, the oxidative stress caused due to hydrogen peroxide assault could be abrogated. A further single application of nanoceria significantly increases the survival of these fragile cells in the culture, thus paving way for developing a more robust photoreceptor culture model to study the aging photoreceptor cells in a defined condition.
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Neuroprotective potential of cerium oxide nanoparticles for focal cerebral ischemic stroke. ACTA ACUST UNITED AC 2016; 36:480-486. [PMID: 27465320 DOI: 10.1007/s11596-016-1612-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 06/15/2016] [Indexed: 10/21/2022]
Abstract
During the previous years, with the emerging of nanotechnology, the enormous capabilities of nanoparticles have drawn great attention from researchers in terms of their potentials in various aspects of pharmacology. Cerium oxide nanoparticles (nanoceria), considered as one of the most widely used nanomaterials, due to its tempting catalytic antioxidant properties, show a promising potential in diverse disorders, such as cerebral ischemic stroke (CIS), cancer, neurodegenerative and inflammatory diseases. Overwhelming generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) during cerebral ischemia and reperfusion periods is known to aggravate brain damage via sophisticated cellular and molecular mechanisms, and therefore exploration of the antioxidant capacities of nanoceria becomes a new approach in reducing cerebral ischemic injury. Furthermore, utilizing nanoceria as a drug carrier might display the propensity to overcome limitations or inefficacy of other conceivable neuroprotectants and exhibit synergistic effects. In this review, we emphasize on the principle features of nanoceria and current researches concerning nanoceria as a potential therapeutic agent or carrier in improving the prognosis of CIS.
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Nelson BC, Johnson ME, Walker ML, Riley KR, Sims CM. Antioxidant Cerium Oxide Nanoparticles in Biology and Medicine. Antioxidants (Basel) 2016; 5:E15. [PMID: 27196936 PMCID: PMC4931536 DOI: 10.3390/antiox5020015] [Citation(s) in RCA: 214] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 05/08/2016] [Accepted: 05/10/2016] [Indexed: 02/06/2023] Open
Abstract
Previously, catalytic cerium oxide nanoparticles (CNPs, nanoceria, CeO2-x NPs) have been widely utilized for chemical mechanical planarization in the semiconductor industry and for reducing harmful emissions and improving fuel combustion efficiency in the automobile industry. Researchers are now harnessing the catalytic repertoire of CNPs to develop potential new treatment modalities for both oxidative- and nitrosative-stress induced disorders and diseases. In order to reach the point where our experimental understanding of the antioxidant activity of CNPs can be translated into useful therapeutics in the clinic, it is necessary to evaluate the most current evidence that supports CNP antioxidant activity in biological systems. Accordingly, the aims of this review are three-fold: (1) To describe the putative reaction mechanisms and physicochemical surface properties that enable CNPs to both scavenge reactive oxygen species (ROS) and to act as antioxidant enzyme-like mimetics in solution; (2) To provide an overview, with commentary, regarding the most robust design and synthesis pathways for preparing CNPs with catalytic antioxidant activity; (3) To provide the reader with the most up-to-date in vitro and in vivo experimental evidence supporting the ROS-scavenging potential of CNPs in biology and medicine.
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Affiliation(s)
- Bryant C Nelson
- Material Measurement Laboratory-Biosystems and Biomaterials Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
| | - Monique E Johnson
- Material Measurement Laboratory-Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
| | - Marlon L Walker
- Material Measurement Laboratory-Materials Measurement Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
| | - Kathryn R Riley
- Material Measurement Laboratory-Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
| | - Christopher M Sims
- Material Measurement Laboratory-Biosystems and Biomaterials Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
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Nanoceria: a Potential Therapeutic for Dry AMD. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 854:111-8. [DOI: 10.1007/978-3-319-17121-0_16] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Fiorani L, Passacantando M, Santucci S, Di Marco S, Bisti S, Maccarone R. Cerium Oxide Nanoparticles Reduce Microglial Activation and Neurodegenerative Events in Light Damaged Retina. PLoS One 2015; 10:e0140387. [PMID: 26469804 PMCID: PMC4607482 DOI: 10.1371/journal.pone.0140387] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 09/24/2015] [Indexed: 11/18/2022] Open
Abstract
The first target of any therapy for retinal neurodegeneration is to slow down the progression of the disease and to maintain visual function. Cerium oxide or ceria nanoparticles reduce oxidative stress, which is known to play a pivotal role in neurodegeneration. Our aim was to investigate whether cerium oxide nanoparticles were able to mitigate neurodegeneration including microglial activation and related inflammatory processes induced by exposure to high intensity light. Cerium oxide nanoparticles were injected intravitreally or intraveinously in albino Sprague-Dawley rats three weeks before exposing them to light damage of 1000 lux for 24 h. Electroretinographic recordings were performed a week after light damage. The progression of retinal degeneration was evaluated by measuring outer nuclear layer thickness and TUNEL staining to quantify photoreceptors death. Immunohistochemical analysis was used to evaluate retinal stress, neuroinflammatory cytokines and microglial activation. Only intravitreally injected ceria nanoparticles were detected at the level of photoreceptor outer segments 3 weeks after the light damage and electoretinographic recordings showed that ceria nanoparticles maintained visual response. Moreover, this treatment reduced neuronal death and "hot spot" extension preserving the outer nuclear layer morphology. It is noteworthy that in this work we demonstrated, for the first time, the ability of ceria nanoparticles to reduce microglial activation and their migration toward outer nuclear layer. All these evidences support ceria nanoparticles as a powerful therapeutic agent in retinal neurodegenerative processes.
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Affiliation(s)
- Lavinia Fiorani
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Via Vetoio, Coppito II, 67100 L'Aquila, Italy
| | - Maurizio Passacantando
- Department of Physical and Chemical Sciences, University of L'Aquila, Via Vetoio, Coppito I, 67100 L'Aquila, Italy
| | - Sandro Santucci
- Department of Physical and Chemical Sciences, University of L'Aquila, Via Vetoio, Coppito I, 67100 L'Aquila, Italy
| | - Stefano Di Marco
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Via Vetoio, Coppito II, 67100 L'Aquila, Italy
| | - Silvia Bisti
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Via Vetoio, Coppito II, 67100 L'Aquila, Italy
| | - Rita Maccarone
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Via Vetoio, Coppito II, 67100 L'Aquila, Italy
- * E-mail:
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Hennig R, Goepferich A. Nanoparticles for the treatment of ocular neovascularizations. Eur J Pharm Biopharm 2015; 95:294-306. [DOI: 10.1016/j.ejpb.2015.02.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 02/13/2015] [Accepted: 02/27/2015] [Indexed: 12/27/2022]
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HE L, SU Y, Lanhong J, SHI S. Recent advances of cerium oxide nanoparticles in synthesis, luminescence and biomedical studies: a review. J RARE EARTH 2015. [DOI: 10.1016/s1002-0721(14)60486-5] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dong H, Du SR, Zheng XY, Lyu GM, Sun LD, Li LD, Zhang PZ, Zhang C, Yan CH. Lanthanide Nanoparticles: From Design toward Bioimaging and Therapy. Chem Rev 2015; 115:10725-815. [DOI: 10.1021/acs.chemrev.5b00091] [Citation(s) in RCA: 799] [Impact Index Per Article: 88.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hao Dong
- Beijing
National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth
Materials and Bioinorganic Chemistry, College of Chemistry and Molecular
Engineering, Peking University, Beijing 100871, China
| | - Shuo-Ren Du
- Beijing
National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth
Materials and Bioinorganic Chemistry, College of Chemistry and Molecular
Engineering, Peking University, Beijing 100871, China
| | - Xiao-Yu Zheng
- Beijing
National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth
Materials and Bioinorganic Chemistry, College of Chemistry and Molecular
Engineering, Peking University, Beijing 100871, China
| | - Guang-Ming Lyu
- Beijing
National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth
Materials and Bioinorganic Chemistry, College of Chemistry and Molecular
Engineering, Peking University, Beijing 100871, China
| | - Ling-Dong Sun
- Beijing
National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth
Materials and Bioinorganic Chemistry, College of Chemistry and Molecular
Engineering, Peking University, Beijing 100871, China
| | - Lin-Dong Li
- Beijing
National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth
Materials and Bioinorganic Chemistry, College of Chemistry and Molecular
Engineering, Peking University, Beijing 100871, China
| | - Pei-Zhi Zhang
- Beijing
National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth
Materials and Bioinorganic Chemistry, College of Chemistry and Molecular
Engineering, Peking University, Beijing 100871, China
| | - Chao Zhang
- Beijing
National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth
Materials and Bioinorganic Chemistry, College of Chemistry and Molecular
Engineering, Peking University, Beijing 100871, China
| | - Chun-Hua Yan
- Beijing
National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth
Materials and Bioinorganic Chemistry, College of Chemistry and Molecular
Engineering, Peking University, Beijing 100871, China
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41
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Nanoengineering of therapeutics for retinal vascular disease. Eur J Pharm Biopharm 2015; 95:323-30. [PMID: 26022642 DOI: 10.1016/j.ejpb.2015.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 04/29/2015] [Accepted: 05/05/2015] [Indexed: 01/07/2023]
Abstract
Retinal vascular diseases, including diabetic retinopathy, neovascular age related macular degeneration, and retinal vein occlusion, are leading causes of blindness in the Western world. These diseases share several common disease mechanisms, including vascular endothelial growth factor (VEGF) signaling, hypoxia, and inflammation, which provide opportunities for common therapeutic strategies. Treatment of these diseases using laser therapy, anti-VEGF injections, and/or steroids has significantly improved clinical outcomes. However, these strategies do not address the underlying root causes of pathology, and may have deleterious side effects. Furthermore, many patients continue to progress toward legal blindness despite receiving regular therapy. Nanomedicine, the engineering of therapeutics at the 1-100 nm scale, is a promising approach for improving clinical management of retinal vascular diseases. Nanomedicine-based technologies have the potential to revolutionize the treatment of ophthalmology, through enabling sustained release of drugs over several months, reducing side effects due to specific targeting of dysfunctional cells, and interfacing with currently "undruggable" targets. We will discuss emerging nanomedicine-based applications for the treatment of complications associated with retinal vascular diseases, including angiogenesis and inflammation.
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Wong LL, Pye QN, Chen L, Seal S, McGinnis JF. Defining the catalytic activity of nanoceria in the P23H-1 rat, a photoreceptor degeneration model. PLoS One 2015; 10:e0121977. [PMID: 25822196 PMCID: PMC4379093 DOI: 10.1371/journal.pone.0121977] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 02/09/2015] [Indexed: 12/17/2022] Open
Abstract
Purpose Inorganic catalytic nanoceria or cerium oxide nanoparticles (CeNPs) are bona fide antioxidants that possess regenerative radical scavenging activities in vitro. Previously, we demonstrated that CeNPs had neuroprotective and anti-angiogenic properties in rodent retinal degeneration and neovascularization models. However, the cellular mechanisms and duration of the catalytic activity of CeNPs in preventing photoreceptor cell loss are still unknown. In this study, we sought to answer these questions using the P23H-1 rat, an autosomal dominant retinitis pigmentosa (adRP) model. Methods A single dose of either saline or CeNPs was delivered intravitreally into the eyes of P23H-1 rats at 2–3 weeks of age. Retinal functions were examined at 3 to 7 weeks post injection. We quantified retinal proteins by Western blot analyses and counted the number of apoptotic (TUNEL+) profiles in the outer nuclear layer (ONL) of retinal sections. We measured free 8-isoprostanes to quantify lipid peroxidation in retinal tissues. Results We observed increased rod and cone cell functions up to three weeks post injection. Apoptotic cells were reduced by 46%, 56%, 21%, and 24% at 3, 7, 14, 21 days, respectively, after CeNPs injection compared to saline. Additionally, reduction of lipid peroxidation in the retinas of CeNPs-treated vs saline-treated animals was detected 14 days post injection. Conclusions We validated that CeNPs were effective in delaying loss of photoreceptor cell function in an adRP rat model. This represents the fourth rodent retinal disease model that shows delay in disease progression after a single application of CeNPs. We further demonstrated that CeNPs slowed the rate of photoreceptor cell death. We deduced that the catalytic activity of CeNPs in vivo in this rat model to be undiminished for at least 7 days and then declined over the next 14 days after CeNPs administration.
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Affiliation(s)
- Lily L. Wong
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, College of Medicine, and Dean McGee Eye Institute, Oklahoma City, Oklahoma, United States of America
- * E-mail: (LLW); (JFM)
| | - Quentin N. Pye
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, College of Medicine, and Dean McGee Eye Institute, Oklahoma City, Oklahoma, United States of America
| | - Lijuan Chen
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, College of Medicine, and Dean McGee Eye Institute, Oklahoma City, Oklahoma, United States of America
| | - Sudipta Seal
- Advanced Materials Processing Analysis Center, Materials Science and Engineering, Nanoscience and Technology Center, College of Medicine, University of Central Florida, Orlando, Florida, United States of America
| | - James F. McGinnis
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, College of Medicine, and Dean McGee Eye Institute, Oklahoma City, Oklahoma, United States of America
- Department of Cell Biology and Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Graduate College, Oklahoma City, Oklahoma, United States of America
- * E-mail: (LLW); (JFM)
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43
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Kyosseva SV, McGinnis JF. Cerium oxide nanoparticles as promising ophthalmic therapeutics for the treatment of retinal diseases. World J Ophthalmol 2015; 5:23-30. [DOI: 10.5318/wjo.v5.i1.23] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 07/03/2014] [Accepted: 11/19/2014] [Indexed: 02/06/2023] Open
Abstract
Nanotechnology offers exciting new approaches for biology and medicine. In recent years, nanoparticles, particularly those of the rare metal cerium, are showing potential for a wide range of applications in medicine. Cerium oxide nanoparticles or nanoceria are antioxidants and possess catalytic activities that mimic those of super oxide dismutase and catalase, thereby protecting cells from oxidative stress. The retina is highly susceptible to oxidative stress because of its high oxygen consumption and high metabolic activity associated with exposure to light. Many retinal diseases progress through oxidative stress as a result of a chronic or acute rise in reactive oxygen species. Diseases of the retina are the leading causes of blindness throughout the world. Although some treatments may delay or slow the development of retinal diseases, there are no cures for most forms of blinding diseases. In this review is summarized evidence that cerium oxide nanoparticles can function as catalytic antioxidants in vivo in rodent models of age-related macular degeneration and inherited retinal degeneration and may represent a novel therapeutic strategy for the treatment of human eye diseases. This may shift current research and clinical practice towards the use of nanoceria, alone or in combination with other therapeutics.
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Walkey C, Das S, Seal S, Erlichman J, Heckman K, Ghibelli L, Traversa E, McGinnis JF, Self WT. Catalytic Properties and Biomedical Applications of Cerium Oxide Nanoparticles. ENVIRONMENTAL SCIENCE. NANO 2015; 2:33-53. [PMID: 26207185 PMCID: PMC4508017 DOI: 10.1039/c4en00138a] [Citation(s) in RCA: 190] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Cerium oxide nanoparticles (Nanoceria) have shown promise as catalytic antioxidants in the test tube, cell culture models and animal models of disease. However given the reactivity that is well established at the surface of these nanoparticles, the biological utilization of Nanoceria as a therapeutic still poses many challenges. Moreover the form that these particles take in a biological environment, such as the changes that can occur due to a protein corona, are not well established. This review aims to summarize the existing literature on biological use of Nanoceria, and to raise questions about what further study is needed to apply this interesting catalytic material to biomedical applications. These questions include: 1) How does preparation, exposure dose, route and experimental model influence the reported effects of Nanoceria in animal studies? 2) What are the considerations to develop Nanoceria as a therapeutic agent in regards to these parameters? 3) What biological targets of reactive oxygen species (ROS) and reactive nitrogen species (RNS) are relevant to this targeting, and how do these properties also influence the safety of these nanomaterials?
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Affiliation(s)
- Carl Walkey
- Integrated Nanotechnology and Biomedical Sciences Laboratory, Terrence Donnelly Building, University of Toronto, 160 College St., Toronto, ON M5S 3G9, Canada
| | - Soumen Das
- Advanced Materials Processing and Analysis Centre, Nanoscience Technology Center, University of Central Florida, Orlando, FL, US
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Centre, Nanoscience Technology Center, University of Central Florida, Orlando, FL, US
| | - Joseph Erlichman
- Department of Biology, St. Lawrence University, Johnson Hall of Science, 23 Romoda Drive, Canton, NY 13617
| | - Karin Heckman
- Department of Biology, St. Lawrence University, Johnson Hall of Science, 23 Romoda Drive, Canton, NY 13617
| | - Lina Ghibelli
- Department of Biology, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Roma, Italy
| | - Enrico Traversa
- King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - James F McGinnis
- Dean A. McGee Eye Institute, Department of Ophthalmology, 608 Stanton L. Young, Blvd., Oklahoma City, OK 73126
| | - William T Self
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, Florida 32816
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Yokel RA, Hussain S, Garantziotis S, Demokritou P, Castranova V, Cassee FR. The Yin: An adverse health perspective of nanoceria: uptake, distribution, accumulation, and mechanisms of its toxicity. ENVIRONMENTAL SCIENCE. NANO 2014; 1:406-428. [PMID: 25243070 PMCID: PMC4167411 DOI: 10.1039/c4en00039k] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
This critical review evolved from a SNO Special Workshop on Nanoceria panel presentation addressing the toxicological risks of nanoceria: accumulation, target organs, and issues of clearance; how exposure dose/concentration, exposure route, and experimental preparation/model influence the different reported effects of nanoceria; and how can safer by design concepts be applied to nanoceria? It focuses on the most relevant routes of human nanoceria exposure and uptake, disposition, persistence, and resultant adverse effects. The pulmonary, oral, dermal, and topical ocular exposure routes are addressed as well as the intravenous route, as the latter provides a reference for the pharmacokinetic fate of nanoceria once introduced into blood. Nanoceria reaching the blood is primarily distributed to mononuclear phagocytic system organs. Available data suggest nanoceria's distribution is not greatly affected by dose, shape, or dosing schedule. Significant attention has been paid to the inhalation exposure route. Nanoceria distribution from the lung to the rest of the body is less than 1% of the deposited dose, and from the gastrointestinal tract even less. Intracellular nanoceria and organ burdens persist for at least months, suggesting very slow clearance rates. The acute toxicity of nanoceria is very low. However, large/accumulated doses produce granuloma in the lung and liver, and fibrosis in the lung. Toxicity, including genotoxicity, increases with exposure time; the effects disappear slowly, possibly due to nanoceria's biopersistence. Nanoceria may exert toxicity through oxidative stress. Adverse effects seen at sites distal to exposure may be due to nanoceria translocation or released biomolecules. An example is elevated oxidative stress indicators in the brain, in the absence of appreciable brain nanoceria. Nanoceria may change its nature in biological environments and cause changes in biological molecules. Increased toxicity has been related to greater surface Ce3+, which becomes more relevant as particle size decreases and the ratio of surface area to volume increases. Given its biopersistence and resulting increased toxicity with time, there is a risk that long-term exposure to low nanoceria levels may eventually lead to adverse health effects. This critical review provides recommendations for research to resolve some of the many unknowns of nanoceria's fate and adverse effects.
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Affiliation(s)
- Robert A Yokel
- Pharmaceutical Sciences, University of Kentucky, US ; Graduate Center for Toxicology, University of Kentucky, US
| | - Salik Hussain
- Clinical Research Unit, National Institute of Environmental Health Sciences, National Institutes of Health, US
| | - Stavros Garantziotis
- Clinical Research Unit, National Institute of Environmental Health Sciences, National Institutes of Health, US
| | | | - Vincent Castranova
- National Institute for Occupational Safety and Health, US ; West Virginia University School of Pharmacy, Morgantown, WV, US
| | - Flemming R Cassee
- Centre for Sustainability, Environmental & Health, National Institute for Public Health and the Environment, Bilthoven, the Netherlands ; Institute of Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
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Chaudhury K, Kumar V, Kandasamy J, RoyChoudhury S. Regenerative nanomedicine: current perspectives and future directions. Int J Nanomedicine 2014; 9:4153-67. [PMID: 25214780 PMCID: PMC4159316 DOI: 10.2147/ijn.s45332] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nanotechnology has considerably accelerated the growth of regenerative medicine in recent years. Application of nanotechnology in regenerative medicine has revolutionized the designing of grafts and scaffolds which has resulted in new grafts/scaffold systems having significantly enhanced cellular and tissue regenerative properties. Since the cell–cell and cell-matrix interaction in biological systems takes place at the nanoscale level, the application of nanotechnology gives an edge in modifying the cellular function and/or matrix function in a more desired way to mimic the native tissue/organ. In this review, we focus on the nanotechnology-based recent advances and trends in regenerative medicine and discussed under individual organ systems including bone, cartilage, nerve, skin, teeth, myocardium, liver and eye. Recent studies that are related to the design of various types of nanostructured scaffolds and incorporation of nanomaterials into the matrices are reported. We have also documented reports where these materials and matrices have been compared for their better biocompatibility and efficacy in supporting the damaged tissue. In addition to the recent developments, future directions and possible challenges in translating the findings from bench to bedside are outlined.
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Affiliation(s)
- Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Vishu Kumar
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Jayaprakash Kandasamy
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Sourav RoyChoudhury
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
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Thakur SS, Barnett NL, Donaldson MJ, Parekh HS. Intravitreal drug delivery in retinal disease: are we out of our depth? Expert Opin Drug Deliv 2014; 11:1575-90. [PMID: 24931577 DOI: 10.1517/17425247.2014.927864] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
INTRODUCTION With the ever-increasing global burden of retinal disease, there is an urgent need to vastly improve formulation strategies that enhance posterior eye delivery of therapeutics. Despite intravitreal administration having demonstrated notable superiority over other routes in enhancing retinal drug availability, there still exist various significant physical/biochemical barriers preventing optimal drug delivery into the retina. A further complication lies with an inability to reliably translate laboratory-based retinal models into a clinical setting. Several formulation approaches have recently been evaluated to improve intravitreal therapeutic outcomes, and our aim in this review is to highlight strategies that hold the most promise. AREAS COVERED We discuss the complex barriers faced by the intravitreal route and examine how formulation strategies including implants, nanoparticulate carriers, viral vectors and sonotherapy have been utilized to attain both sustained delivery and enhanced penetration through to the retina. We conclude by highlighting the advances and limitations of current in vitro, ex vivo and in vivo retinal models in use by researchers globally. EXPERT OPINION Various nanoparticle compositions have demonstrated the ability to overcome the retinal barriers successfully; however, their utility is limited to the laboratory setting. Optimization of these formulations and the development of more robust experimental retinal models are necessary to translate success in the laboratory into clinically efficacious outcomes.
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Affiliation(s)
- Sachin S Thakur
- The University of Queensland, School of Pharmacy, Pharmacy Australia Centre of Excellence , 20 Cornwall Street, Woolloongabba, Brisbane, QLD, 4102 , Australia
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Das S, Dowding JM, Klump KE, McGinnis JF, Self W, Seal S. Cerium oxide nanoparticles: applications and prospects in nanomedicine. Nanomedicine (Lond) 2014; 8:1483-508. [PMID: 23987111 DOI: 10.2217/nnm.13.133] [Citation(s) in RCA: 292] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Promising results have been obtained using cerium (Ce) oxide nanoparticles (CNPs) as antioxidants in biological systems. CNPs have unique regenerative properties owing to their low reduction potential and the coexistence of both Ce(3+)/Ce(4+) on their surfaces. Defects in the crystal lattice due to the presence of Ce(3+) play an important role in tuning the redox activity of CNPs. The surface Ce(3+):Ce(4+) ratio is influenced by the microenvironment. Therefore, the microenvironment and synthesis method adopted also plays an important role in determining the biological activity and toxicity of CNPs. The presence of a mixed valance state plays an important role in scavenging reactive oxygen and nitrogen species. CNPs are found to be effective against pathologies associated with chronic oxidative stress and inflammation. CNPs are well tolerated in both in vitro and in vivo biological models, which makes CNPs well suited for applications in nanobiology and regenerative medicine.
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Affiliation(s)
- Soumen Das
- Advanced Materials Processing Analysis Center, Nanoscience Technology Center, University of Central Florida, Orlando, FL, USA
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49
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Nanoceria as Bona Fide Catalytic Antioxidants in Medicine: What We Know and What We Want to Know…. RETINAL DEGENERATIVE DISEASES 2014; 801:821-8. [DOI: 10.1007/978-1-4614-3209-8_103] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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50
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Heckman KL, DeCoteau W, Estevez A, Reed KJ, Costanzo W, Sanford D, Leiter JC, Clauss J, Knapp K, Gomez C, Mullen P, Rathbun E, Prime K, Marini J, Patchefsky J, Patchefsky AS, Hailstone RK, Erlichman JS. Custom cerium oxide nanoparticles protect against a free radical mediated autoimmune degenerative disease in the brain. ACS NANO 2013; 7:10582-10596. [PMID: 24266731 DOI: 10.1021/nn403743b] [Citation(s) in RCA: 204] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Cerium oxide nanoparticles are potent antioxidants, based on their ability to either donate or receive electrons as they alternate between the +3 and +4 valence states. The dual oxidation state of ceria has made it an ideal catalyst in industrial applications, and more recently, nanoceria's efficacy in neutralizing biologically generated free radicals has been explored in biological applications. Here, we report the in vivo characteristics of custom-synthesized cerium oxide nanoparticles (CeNPs) in an animal model of immunological and free-radical mediated oxidative injury leading to neurodegenerative disease. The CeNPs are 2.9 nm in diameter, monodispersed and have a -23.5 mV zeta potential when stabilized with citrate/EDTA. This stabilizer coating resists being 'washed' off in physiological salt solutions, and the CeNPs remain monodispersed for long durations in high ionic strength saline. The plasma half-life of the CeNPs is ∼4.0 h, far longer than previously described, stabilized ceria nanoparticles. When administered intravenously to mice, the CeNPs were well tolerated and taken up by the liver and spleen much less than previous nanoceria formulations. The CeNPs were also able to penetrate the brain, reduce reactive oxygen species levels, and alleviate clinical symptoms and motor deficits in mice with a murine model of multiple sclerosis. Thus, CeNPs may be useful in mitigating tissue damage arising from free radical accumulation in biological systems.
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Affiliation(s)
- Karin L Heckman
- Departments of Biology and ‡Psychology, St. Lawrence University , Canton, New York 13617, United States
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