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Kwon YS, Han Z. Advanced nanomedicines for the treatment of age-related macular degeneration. NANOSCALE 2024; 16:16769-16790. [PMID: 39177654 DOI: 10.1039/d4nr01917b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
The critical and unmet medical need for novel therapeutic advancements in the treatment of age-related macular degeneration (AMD) cannot be overstated, particularly given the aging global population and the increasing prevalence of this condition. Current AMD therapy involves intravitreal treatments that require monthly or bimonthly injections to maintain optimal efficacy. This underscores the necessity for improved approaches, prompting recent research into developing advanced drug delivery systems to prolong the intervals between treatments. Nanoparticle-based therapeutic approaches have enabled the controlled release of drugs, targeted delivery of therapeutic materials, and development of smart solutions for the harsh microenvironment of diseased tissues, offering a new perspective on ocular disease treatment. This review emphasizes the latest pre-clinical treatment options in ocular drug delivery to the retina and explores the advantages of nanoparticle-based therapeutic approaches, with a focus on AMD, the leading cause of irreversible blindness in the elderly.
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Affiliation(s)
- Yong-Su Kwon
- Department of Ophthalmology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
| | - Zongchao Han
- Department of Ophthalmology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
- Division of Pharmacoengineering & Molecular Pharmaceutics, Eshelman School of Pharmacy, the University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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2
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Zhou Y, Xu M, Shen W, Xu Y, Shao A, Xu P, Yao K, Han H, Ye J. Recent Advances in Nanomedicine for Ocular Fundus Neovascularization Disease Management. Adv Healthc Mater 2024; 13:e2304626. [PMID: 38406994 PMCID: PMC11468720 DOI: 10.1002/adhm.202304626] [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: 12/26/2023] [Revised: 02/22/2024] [Indexed: 02/27/2024]
Abstract
As an indispensable part of the human sensory system, visual acuity may be impaired and even develop into irreversible blindness due to various ocular pathologies. Among ocular diseases, fundus neovascularization diseases (FNDs) are prominent etiologies of visual impairment worldwide. Intravitreal injection of anti-vascular endothelial growth factor drugs remains the primary therapy but is hurdled by common complications and incomplete potency. To renovate the current therapeutic modalities, nanomedicine emerged as the times required, which is endowed with advanced capabilities, able to fulfill the effective ocular fundus drug delivery and achieve precise drug release control, thus further improving the therapeutic effect. This review provides a comprehensive summary of advances in nanomedicine for FND management from state-of-the-art studies. First, the current therapeutic modalities for FNDs are thoroughly introduced, focusing on the key challenges of ocular fundus drug delivery. Second, nanocarriers are comprehensively reviewed for ocular posterior drug delivery based on the nanostructures: polymer-based nanocarriers, lipid-based nanocarriers, and inorganic nanoparticles. Thirdly, the characteristics of the fundus microenvironment, their pathological changes during FNDs, and corresponding strategies for constructing smart nanocarriers are elaborated. Furthermore, the challenges and prospects of nanomedicine for FND management are thoroughly discussed.
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Affiliation(s)
- Yifan Zhou
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, 88 Jiefang Road, Hangzhou, 310009, P. R. China
| | - Mingyu Xu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, 88 Jiefang Road, Hangzhou, 310009, P. R. China
| | - Wenyue Shen
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, 88 Jiefang Road, Hangzhou, 310009, P. R. China
| | - Yufeng Xu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, 88 Jiefang Road, Hangzhou, 310009, P. R. China
| | - An Shao
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, 88 Jiefang Road, Hangzhou, 310009, P. R. China
| | - Peifang Xu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, 88 Jiefang Road, Hangzhou, 310009, P. R. China
| | - Ke Yao
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, 88 Jiefang Road, Hangzhou, 310009, P. R. China
| | - Haijie Han
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, 88 Jiefang Road, Hangzhou, 310009, P. R. China
| | - Juan Ye
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, 88 Jiefang Road, Hangzhou, 310009, P. R. China
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3
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Teng L, Sun Y, Teng S, Hui P. Applications of nanomaterials in anti-VEGF treatment for ophthalmic diseases. J Biomed Mater Res A 2024; 112:296-306. [PMID: 37850566 DOI: 10.1002/jbm.a.37626] [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: 08/09/2022] [Revised: 08/05/2023] [Accepted: 10/03/2023] [Indexed: 10/19/2023]
Abstract
Angiogenesis has been determined to be essential in the occurrence and metastasis of diabetic retinopathy (DR), age-related macular degeneration (AMD), retinal vein occlusion (RVO), choroidal neovascularization (CNV), retinopathy of prematurity (ROP), tumor, etc. However, the clinical use of anti-vascular endothelial growth factors (VEGF) drugs is currently limited due to its high cost, potential side effects, and need for repeated injections. In recent years, nanotechnology has shown promising results in inhibiting neovascularization and reducing reactive oxygen species (ROS) or inflammatory factors. Some nanomaterials can also act as vehicles for drug delivery, such as lipid nanoparticles and PLGA. The process of angiogenesis and its molecular mechanism are discussed in this article. At the same time, this study aims to systematically review the research progress of nanotechnology and offer more treatment options for neovascularization-related diseases in clinical ophthalmology.
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Affiliation(s)
- Lu Teng
- The First Bethune Hospital of Jilin University, Jilin, China
| | - Yabin Sun
- The First Bethune Hospital of Jilin University, Jilin, China
| | - Siying Teng
- The First Bethune Hospital of Jilin University, Jilin, China
| | - Peng Hui
- The First Bethune Hospital of Jilin University, Jilin, China
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4
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Yang CJ, Anand A, Huang CC, Lai JY. Unveiling the Power of Gabapentin-Loaded Nanoceria with Multiple Therapeutic Capabilities for the Treatment of Dry Eye Disease. ACS NANO 2023; 17:25118-25135. [PMID: 38051575 DOI: 10.1021/acsnano.3c07817] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Dry eye (DE) disease, which is primarily linked to aqueous deficiency, is an escalating health issue worldwide, mainly due to the widespread use of electronic devices. The major obstacles in DE pharmacotherapy include insufficient therapeutic efficacy and low ocular bioavailability. This study presents the development of a ceria-based nanosystem to carry gabapentin (GBT), aiming to offer comprehensive relief from DE symptoms. We prepared multifunctional nanoceria capped with thiolated gelatin followed by cross-linking with glutaraldehyde, yielding a nanocarrier with desirable biocompatibility and antioxidant, anti-inflammatory, antiangiogenic, antiapoptotic, and neuronal protective activities. Specifically, the highly abundant thiol groups on gelatin increased the cellular uptake of the nanocarrier by 2.3-fold and its mucin-binding efficiency by 10-fold, thereby extending ocular retention and amplifying therapeutic activity. Moderate cross-linking of the thiolated gelatin not only enhanced the ocular bioavailability of the nanoceria but also provided slow, degradation-controlled release of GBT to promote the lacrimal stimulation to restore the tear film. In a rabbit model of DE, topical administration of our GBT/nanoceria nanoformulation resulted in comprehensive alleviation of symptoms, including repairing corneal epithelial damage, preserving corneal nerve density, and stimulating tear secretion, demonstrating superior performance in comparison to the free drug. These results underscore the safety and potential of this innovative nanoformulation for DE pharmacotherapy.
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Affiliation(s)
- Chia-Jung Yang
- Department of Biomedical Engineering, Chang Gung University, Taoyuan 33302, Taiwan
| | - Anisha Anand
- Department of Biomedical Engineering, Chang Gung University, Taoyuan 33302, Taiwan
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202301, Taiwan
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 202301, Taiwan
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Jui-Yang Lai
- Department of Biomedical Engineering, Chang Gung University, Taoyuan 33302, Taiwan
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan 33305, Taiwan
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan
- Center for Biomedical Engineering, Chang Gung University, Taoyuan 33302, Taiwan
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5
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Meng S, Cao H, Huang Y, Shi Z, Li J, Wang Y, Zhang Y, Chen S, Shi H, Gao Y. ASK1-K716R reduces neuroinflammation and white matter injury via preserving blood-brain barrier integrity after traumatic brain injury. J Neuroinflammation 2023; 20:244. [PMID: 37875988 PMCID: PMC10594934 DOI: 10.1186/s12974-023-02923-6] [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: 08/10/2023] [Accepted: 10/05/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Traumatic brain injury (TBI) is a significant worldwide public health concern that necessitates attention. Apoptosis signal-regulating kinase 1 (ASK1), a key player in various central nervous system (CNS) diseases, has garnered interest for its potential neuroprotective effects against ischemic stroke and epilepsy when deleted. Nonetheless, the specific impact of ASK1 on TBI and its underlying mechanisms remain elusive. Notably, mutation of ATP-binding sites, such as lysine residues, can lead to catalytic inactivation of ASK1. To address these knowledge gaps, we generated transgenic mice harboring a site-specific mutant ASK1 Map3k5-e (K716R), enabling us to assess its effects and elucidate potential underlying mechanisms following TBI. METHODS We employed the CRIPR/Cas9 system to generate a transgenic mouse model carrying the ASK1-K716R mutation, aming to investigate the functional implications of this specific mutant. The controlled cortical impact method was utilized to induce TBI. Expression and distribution of ASK1 were detected through Western blotting and immunofluorescence staining, respectively. The ASK1 kinase activity after TBI was detected by a specific ASK1 kinase activity kit. Cerebral microvessels were isolated by gradient centrifugation using dextran. Immunofluorescence staining was performed to evaluate blood-brain barrier (BBB) damage. BBB ultrastructure was visualized using transmission electron microscopy, while the expression levels of endothelial tight junction proteins and ASK1 signaling pathway proteins was detected by Western blotting. To investigate TBI-induced neuroinflammation, we conducted immunofluorescence staining, quantitative real-time polymerase chain reaction (qRT-PCR) and flow cytometry analyses. Additionally, immunofluorescence staining and electrophysiological compound action potentials were conducted to evaluate gray and white matter injury. Finally, sensorimotor function and cognitive function were assessed by a battery of behavioral tests. RESULTS The activity of ASK1-K716R was significantly decreased following TBI. Western blotting confirmed that ASK1-K716R effectively inhibited the phosphorylation of ASK1, JNKs, and p38 in response to TBI. Additionally, ASK1-K716R demonstrated a protective function in maintaining BBB integrity by suppressing ASK1/JNKs activity in endothelial cells, thereby reducing the degradation of tight junction proteins following TBI. Besides, ASK1-K716R effectively suppressed the infiltration of peripheral immune cells into the brain parenchyma, decreased the number of proinflammatory-like microglia/macrophages, increased the number of anti-inflammatory-like microglia/macrophages, and downregulated expression of several proinflammatory factors. Furthermore, ASK1-K716R attenuated white matter injury and improved the nerve conduction function of both myelinated and unmyelinated fibers after TBI. Finally, our findings demonstrated that ASK1-K716R exhibited favorable long-term functional and histological outcomes in the aftermath of TBI. CONCLUSION ASK1-K716R preserves BBB integrity by inhibiting ASK1/JNKs pathway in endothelial cells, consequently reducing the degradation of tight junction proteins. Additionally, it alleviates early neuroinflammation by inhibiting the infiltration of peripheral immune cells into the brain parenchyma and modulating the polarization of microglia/macrophages. These beneficial effects of ASK1-K716R subsequently result in a reduction in white matter injury and promote the long-term recovery of neurological function following TBI.
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Affiliation(s)
- Shan Meng
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, and Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Hui Cao
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, and Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Yichen Huang
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, and Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Ziyu Shi
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, and Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Jiaying Li
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, and Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Yana Wang
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, and Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Yue Zhang
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, and Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Shuning Chen
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, and Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Hong Shi
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, China.
| | - Yanqin Gao
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, and Institutes of Brain Science, Fudan University, Shanghai, 200032, China.
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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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7
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Yang C, Nguyen DD, Lai J. Poly(l-Histidine)-Mediated On-Demand Therapeutic Delivery of Roughened Ceria Nanocages for Treatment of Chemical Eye Injury. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302174. [PMID: 37430140 PMCID: PMC10502830 DOI: 10.1002/advs.202302174] [Citation(s) in RCA: 50] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/10/2023] [Indexed: 07/12/2023]
Abstract
Development of topical bioactive formulations capable of overcoming the low bioavailability of conventional eye drops is critically important for efficient management of ocular chemical burns. Herein, a nanomedicine strategy is presented to harness the surface roughness-controlled ceria nanocages (SRCNs) and poly(l-histidine) surface coatings for triggering multiple bioactive roles of intrinsically therapeutic nanocarriers and promoting transport across corneal epithelial barriers as well as achieving on-demand release of dual drugs [acetylcholine chloride (ACh) and SB431542] at the lesion site. Specifically, the high surface roughness helps improve cellular uptake and therapeutic activity of SRCNs while exerting a negligible impact on good ocular biocompatibility of the nanomaterials. Moreover, the high poly(l-histidine) coating amount can endow the SRCNs with an ≈24-fold enhancement in corneal penetration and an effective smart release of ACh and SB431542 in response to endogenous pH changes caused by tissue injury/inflammation. In a rat model of alkali burn, topical single-dose nanoformulation can efficaciously reduce corneal wound areas (19-fold improvement as compared to a marketed eye drops), attenuate ≈93% abnormal blood vessels, and restore corneal transparency to almost normal at 4 days post-administration, suggesting great promise for designing multifunctional metallic nanotherapeutics for ocular pharmacology and tissue regenerative medicine.
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Affiliation(s)
- Chia‐Jung Yang
- Department of Biomedical EngineeringChang Gung UniversityTaoyuan33302Taiwan
| | - Duc Dung Nguyen
- Department of Biomedical EngineeringChang Gung UniversityTaoyuan33302Taiwan
| | - Jui‐Yang Lai
- Department of Biomedical EngineeringChang Gung UniversityTaoyuan33302Taiwan
- Department of OphthalmologyChang Gung Memorial Hospital, LinkouTaoyuan33305Taiwan
- Department of Materials EngineeringMing Chi University of TechnologyNew Taipei City24301Taiwan
- Research Center for Chinese Herbal MedicineCollege of Human EcologyChang Gung University of Science and TechnologyTaoyuan33303Taiwan
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Wang X, Luan F, Yue H, Song C, Wang S, Feng J, Zhang X, Yang W, Li Y, Wei W, Tao Y. Recent advances of smart materials for ocular drug delivery. Adv Drug Deliv Rev 2023; 200:115006. [PMID: 37451500 DOI: 10.1016/j.addr.2023.115006] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
Owing to the variety and complexity of ocular diseases and the natural ocular barriers, drug therapy for ocular diseases has significant limitations, such as poor drug targeting to the site of the disease, poor drug penetration, and short drug retention time in the vitreous body. With the development of biotechnology, biomedical materials have reached the "smart" stage. To date, despite their inability to overcome all the aforementioned drawbacks, a variety of smart materials have been widely tested to treat various ocular diseases. This review analyses the most recent developments in multiple smart materials (inorganic particles, polymeric particles, lipid-based particles, hydrogels, and devices) to treat common ocular diseases and discusses the future directions and perspectives regarding clinical translation issues. This review can help researchers rationally design more smart materials for specific ocular applications.
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Affiliation(s)
- Xiaojun Wang
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Fuxiao Luan
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Hua Yue
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Cui Song
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Shuang Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Jing Feng
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China
| | - Xiao Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Wei Yang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Yuxin Li
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Wei Wei
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Yong Tao
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China.
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Wei J, Mu J, Tang Y, Qin D, Duan J, Wu A. Next-generation nanomaterials: advancing ocular anti-inflammatory drug therapy. J Nanobiotechnology 2023; 21:282. [PMID: 37598148 PMCID: PMC10440041 DOI: 10.1186/s12951-023-01974-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 06/29/2023] [Indexed: 08/21/2023] Open
Abstract
Ophthalmic inflammatory diseases, including conjunctivitis, keratitis, uveitis, scleritis, and related conditions, pose considerable challenges to effective management and treatment. This review article investigates the potential of advanced nanomaterials in revolutionizing ocular anti-inflammatory drug interventions. By conducting an exhaustive analysis of recent advancements and assessing the potential benefits and limitations, this review aims to identify promising avenues for future research and clinical applications. The review commences with a detailed exploration of various nanomaterial categories, such as liposomes, dendrimers, nanoparticles (NPs), and hydrogels, emphasizing their unique properties and capabilities for accurate drug delivery. Subsequently, we explore the etiology and pathophysiology of ophthalmic inflammatory disorders, highlighting the urgent necessity for innovative therapeutic strategies and examining recent preclinical and clinical investigations employing nanomaterial-based drug delivery systems. We discuss the advantages of these cutting-edge systems, such as biocompatibility, bioavailability, controlled release, and targeted delivery, alongside potential challenges, which encompass immunogenicity, toxicity, and regulatory hurdles. Furthermore, we emphasize the significance of interdisciplinary collaborations among material scientists, pharmacologists, and clinicians in expediting the translation of these breakthroughs from laboratory environments to clinical practice. In summary, this review accentuates the remarkable potential of advanced nanomaterials in redefining ocular anti-inflammatory drug therapy. We fervently support continued research and development in this rapidly evolving field to overcome existing barriers and improve patient outcomes for ophthalmic inflammatory disorders.
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Affiliation(s)
- Jing Wei
- School of Ophthalmology, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Jinyu Mu
- School of Ophthalmology, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Yong Tang
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Education Ministry Key Laboratory of Medical Electrophysiology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, China
| | - Dalian Qin
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Education Ministry Key Laboratory of Medical Electrophysiology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, China
| | - Junguo Duan
- School of Ophthalmology, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
| | - Anguo Wu
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Education Ministry Key Laboratory of Medical Electrophysiology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
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10
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Kushwah N, Bora K, Maurya M, Pavlovich MC, Chen J. Oxidative Stress and Antioxidants in Age-Related Macular Degeneration. Antioxidants (Basel) 2023; 12:1379. [PMID: 37507918 PMCID: PMC10376043 DOI: 10.3390/antiox12071379] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
Oxidative stress plays a crucial role in aging-related eye diseases, including age-related macular degeneration (AMD), cataracts, and glaucoma. With age, antioxidant reparative capacity decreases, and excess levels of reactive oxygen species produce oxidative damage in many ocular cell types underling age-related pathologies. In AMD, loss of central vision in the elderly is caused primarily by retinal pigment epithelium (RPE) dysfunction and degeneration and/or choroidal neovascularization that trigger malfunction and loss of photo-sensing photoreceptor cells. Along with various genetic and environmental factors that contribute to AMD, aging and age-related oxidative damage have critical involvement in AMD pathogenesis. To this end, dietary intake of antioxidants is a proven way to scavenge free radicals and to prevent or slow AMD progression. This review focuses on AMD and highlights the pathogenic role of oxidative stress in AMD from both clinical and experimental studies. The beneficial roles of antioxidants and dietary micronutrients in AMD are also summarized.
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Affiliation(s)
| | | | | | | | - Jing Chen
- Department of Ophthalmology, Boston Children’s Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
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11
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Wang Y, Yin N, Yang R, Faiola F. Pollution effects on retinal health: A review on current methodologies and findings. Toxicol Ind Health 2023; 39:336-344. [PMID: 37160417 DOI: 10.1177/07482337231174072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
In our daily life, we are exposed to numerous industrial chemicals that may be harmful to the retina, which is a delicate and sensitive part of our eyes. This could lead to irreversible changes and cause retinal diseases or blindness. Current retinal environmental health studies primarily utilize animal models, isolated mammalian retinas, animal- or human-derived retinal cells, and retinal organoids, to address both pre- and postnatal exposure. However, as there is limited toxicological information available for specific populations, human induced pluripotent stem cell (hiPSC)-induced models could be effective tools to supplement such data. In order to obtain more comprehensive and reliable toxicological information, we need more appropriate models, novel evaluation methods, and computational technologies to develop portable equipment. This review mainly focused on current toxicology models with particular emphasis on retinal organoids, and it looks forward to future models, analytical methods, and equipment that can efficiently and accurately evaluate retinal toxicity.
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Affiliation(s)
- Yue Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Nuoya Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Renjun Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Francesco Faiola
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
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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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13
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Kwon YS, Zheng M, Zhang AY, Han Z. Melanin-like Nanoparticles as an Alternative to Natural Melanin in Retinal Pigment Epithelium Cells and Their Therapeutic Effects against Age-Related Macular Degeneration. ACS NANO 2022; 16:19412-19422. [PMID: 36269679 DOI: 10.1021/acsnano.2c09087] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Melanin is a natural pigment that is widely distributed in many parts of the human body, such as the skin and retinal pigment epithelium (RPE) in eyes. In contrast to skin melanin, which is being constantly synthesized by the epidermal melanocytes, melanin in the RPE does not regenerate. Melanin is known to function as a potential radical scavenger and photoprotective agent. However, the protective effects of melanin against oxidative stress decline with increasing age. This phenomenon has been correlated with the pathogenesis of age-related macular degeneration (AMD). To increase the potential antioxidant and photoprotective characteristics of melanin, we designed a therapeutic strategy for replenishment of melanin using PEGylated synthetic melanin-like nanoparticles (MNPs) in the RPE for the treatment of AMD. We performed experiments using AMD-like cellular and mouse models and demonstrated that MNPs are biocompatible and selectively target reactive oxygen species (ROS) with powerful antioxidant properties. MNPs can traffic and accumulate in the RPE and are exclusively located in cytosol, but not the nucleus and mitochondria of the cells, for at least 3 months after a single-dose intravitreal injection. Our findings demonstrate that MNPs are able to substitute for natural melanin in the RPE and suggest the potential efficacy of MNPs as a natural radical scavenger against oxidative stress in ROS-related diseases, such as AMD.
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Affiliation(s)
- Yong-Su Kwon
- Department of Ophthalmology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina27599, United States
| | - Min Zheng
- Department of Ophthalmology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina27599, United States
| | - Alice Yang Zhang
- Department of Ophthalmology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina27599, United States
| | - Zongchao Han
- Department of Ophthalmology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina27599, United States
- Division of Pharmacoengineering & Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina27599, United States
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14
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Zhang C, Yin Y, Zhao J, Li Y, Wang Y, Zhang Z, Niu L, Zheng Y. An Update on Novel Ocular Nanosystems with Possible Benefits in the Treatment of Corneal Neovascularization. Int J Nanomedicine 2022; 17:4911-4931. [PMID: 36267540 PMCID: PMC9578304 DOI: 10.2147/ijn.s375570] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 10/02/2022] [Indexed: 11/06/2022] Open
Abstract
Corneal neovascularization (CNV) is an ocular pathological change that results from an imbalance between angiogenic factors and antiangiogenic factors as a result of various ocular insults, including infection, inflammation, hypoxia, trauma, corneal degeneration, and corneal transplantation. Current clinical strategies for the treatment of CNV include pharmacological treatment and surgical intervention. Despite some degree of success, the current treatment strategies are restricted by limited efficacy, adverse effects, and a short duration of action. Recently, gene-based antiangiogenic therapy has become an emerging strategy that has attracted considerable interest. However, potential complications with the use of viral vectors, such as potential genotoxicity resulting from long-term expression and nonspecific targeting, cannot be ignored. The use of ocular nanosystems (ONS) based on nanotechnology has emerged as a great advantage in ocular disease treatment during the last two decades. The potential functions of ONS range from nanocarriers, which deliver drugs and genes to target sites in the eye, to therapeutic agents themselves. Various preclinical studies conducted to date have demonstrated promising results of the use of ONS in the treatment of CNV. In this review, we provide an overview of CNV and its current therapeutic strategies and summarize the properties and applications of various ONS related to the treatment of CNV reported to date. Our goal is to provide a comprehensive review of these considerable advances in ONS in the field of CNV therapy over the past two decades to fill the gaps in previous related reports. Finally, we discuss existing challenges and future perspectives of the use of ONS in CNV therapy, with the goal of providing a theoretical contribution to facilitate future practical growth in the area.
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Affiliation(s)
- Chenchen Zhang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Yuan Yin
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Jing Zhao
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Yanxia Li
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Yuanping Wang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Zhaoying Zhang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Lingzhi Niu
- Department of Ophthalmology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, People’s Republic of China
| | - Yajuan Zheng
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, People’s Republic of China,Correspondence: Yajuan Zheng, Email
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15
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Tisi A, Pulcini F, Carozza G, Mattei V, Flati V, Passacantando M, Antognelli C, Maccarone R, Delle Monache S. Antioxidant Properties of Cerium Oxide Nanoparticles Prevent Retinal Neovascular Alterations In Vitro and In Vivo. Antioxidants (Basel) 2022; 11:antiox11061133. [PMID: 35740031 PMCID: PMC9220105 DOI: 10.3390/antiox11061133] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 12/11/2022] Open
Abstract
In this study, we investigated whether cerium oxide nanoparticles (CeO2-NPs), a promising antioxidant nanomaterial, may contrast retinal vascular alterations induced by oxidative damage in vitro and in vivo. For the in vivo experiments, the light damage (LD) animal model of Age-Related Macular Degeneration (AMD) was used and the CeO2-NPs were intravitreally injected. CeO2-NPs significantly decreased vascular endothelial growth factor (VEGF) protein levels, reduced neovascularization in the deep retinal plexus, and inhibited choroidal sprouting into the photoreceptor layer. The in vitro experiments were performed on human retinal pigment epithelial (ARPE-19) cells challenged with H2O2; we demonstrated that CeO2-NPs reverted H2O2-induced oxidative stress-dependent effects on this cell model. We further investigated the RPE-endothelial cells interaction under oxidative stress conditions in the presence or absence of CeO2-NPs through two experimental paradigms: (i) treatment of human umbilical vein endothelial cells (HUVECs) with conditioned media from ARPE-19 cells, and (ii) coculture of ARPE-19 and HUVECs. In both experimental conditions, CeO2-NPs were able to revert the detrimental effect of H2O2 on angiogenesis in vitro by realigning the level of tubule formation to that of the control. Altogether, our results indicate, for the first time, that CeO2-NPs can counteract retinal neovascularization and may be a new therapeutic strategy for the treatment of wet AMD.
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Affiliation(s)
- Annamaria Tisi
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.T.); (F.P.); (G.C.); (V.F.); (S.D.M.)
| | - Fanny Pulcini
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.T.); (F.P.); (G.C.); (V.F.); (S.D.M.)
| | - Giulia Carozza
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.T.); (F.P.); (G.C.); (V.F.); (S.D.M.)
| | - Vincenzo Mattei
- Biomedicine and Advanced Technologies Rieti Center, Sabina Universitas, 02100 Rieti, Italy;
| | - Vincenzo Flati
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.T.); (F.P.); (G.C.); (V.F.); (S.D.M.)
| | - Maurizio Passacantando
- Department of Physical and Chemical Sciences, University of L’Aquila, 67100 L’Aquila, Italy;
| | - Cinzia Antognelli
- Department of Medicine & Surgery, Bioscience and Medical Embryology Division, University of Perugia, 06129 Perugia, Italy
- Correspondence: (C.A.); (R.M.)
| | - Rita Maccarone
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.T.); (F.P.); (G.C.); (V.F.); (S.D.M.)
- Correspondence: (C.A.); (R.M.)
| | - Simona Delle Monache
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.T.); (F.P.); (G.C.); (V.F.); (S.D.M.)
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16
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Yong JM, Fu L, Tang F, Yu P, Kuchel RP, Whitelock JM, Lord MS. ROS-Mediated Anti-Angiogenic Activity of Cerium Oxide Nanoparticles in Melanoma Cells. ACS Biomater Sci Eng 2022; 8:512-525. [PMID: 34989230 DOI: 10.1021/acsbiomaterials.1c01268] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Angiogenesis plays a key role in cancer progression, including transition to the metastatic phase via reactive oxygen species (ROS)-dependent pathways, among others. Antivascular endothelial growth factor (VEGF) antibodies have been trialed as an anti-angiogenic therapy for cancer but are associated with high cost, limited efficacy, and side effects. Cerium oxide nanoparticles (nanoceria) are promising nanomaterials for biomedical applications due to their ability to modulate intracellular ROS. Nanoceria can be produced by a range of synthesis methods, with chemical precipitation as the most widely explored. It has been reported that chemical precipitation can fine-tune primary particle size where a limited number of synthesis parameters were varied. Here, we explore the effect of temperature, precipitating agent concentration and rate of addition, stirring rate, and surfactant concentration on nanoceria primary particle size using a fractional factorial experimental design approach. We establish a robust synthesis method for faceted nanoceria with primary particle diameters of 5-6 nm. The nanoceria are not cytotoxic to a human melanoma cell line (Mel1007) at doses up to 400 μg/mL and are dose-dependently internalized by the cells. The intracellular ROS level for some cells that internalized the nanoceria is reduced, which correlates with a dose-dependent reduction in angiogenic gene expression including VEGF. These findings contribute to our knowledge of the anti-angiogenic effects of nanoceria and help to develop our understanding of potentially new anti-angiogenic agents for combination cancer therapies.
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Affiliation(s)
- Joel M Yong
- Graduate School of Biomedical Engineering, Level 5, Samuels Building, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Lu Fu
- Graduate School of Biomedical Engineering, Level 5, Samuels Building, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Fengying Tang
- Graduate School of Biomedical Engineering, Level 5, Samuels Building, UNSW Sydney, Sydney, NSW 2052, Australia.,Department of Comparative Medicine, University of Washington, Seattle, Washington 98195, United States
| | - Peimin Yu
- Graduate School of Biomedical Engineering, Level 5, Samuels Building, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Rhiannon P Kuchel
- Electron Microscope Unit, Basement, Chemical Sciences Building, UNSW Sydney, Sydney, NSW 2052, Australia
| | - John M Whitelock
- Graduate School of Biomedical Engineering, Level 5, Samuels Building, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Megan S Lord
- Graduate School of Biomedical Engineering, Level 5, Samuels Building, UNSW Sydney, Sydney, NSW 2052, Australia
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17
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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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18
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Cerium Oxide Nanoparticles: A New Therapeutic Tool in Liver Diseases. Antioxidants (Basel) 2021; 10:antiox10050660. [PMID: 33923136 PMCID: PMC8146351 DOI: 10.3390/antiox10050660] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 12/15/2022] Open
Abstract
Oxidative stress induced by the overproduction of free radicals or reactive oxygen species (ROS) has been considered as a key pathogenic mechanism contributing to the initiation and progression of injury in liver diseases. Consequently, during the last few years antioxidant substances, such as superoxide dismutase (SOD), resveratrol, colchicine, eugenol, and vitamins E and C have received increasing interest as potential therapeutic agents in chronic liver diseases. These substances have demonstrated their efficacy in equilibrating hepatic ROS metabolism and thereby improving liver functionality. However, many of these agents have not successfully passed the scrutiny of clinical trials for the prevention and treatment of various diseases, mainly due to their unspecificity and consequent uncontrolled side effects, since a minimal level of ROS is needed for normal functioning. Recently, cerium oxide nanoparticles (CeO2NPs) have emerged as a new powerful antioxidant agent with therapeutic properties in experimental liver disease. CeO2NPs have been reported to act as a ROS and reactive nitrogen species (RNS) scavenger and to have multi-enzyme mimetic activity, including SOD activity (deprotionation of superoxide anion into oxygen and hydrogen peroxide), catalase activity (conversion of hydrogen peroxide into oxygen and water), and peroxidase activity (reducing hydrogen peroxide into hydroxyl radicals). Consequently, the beneficial effects of CeO2NPs treatment have been reported in many different medical fields other than hepatology, including neurology, ophthalmology, cardiology, and oncology. Unlike other antioxidants, CeO2NPs are only active at pathogenic levels of ROS, being inert and innocuous in healthy cells. In the current article, we review the potential of CeO2NPs in several experimental models of liver disease and their safety as a therapeutic agent in humans as well.
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19
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Lyu Q, Peng L, Hong X, Fan T, Li J, Cui Y, Zhang H, Zhao J. Smart nano-micro platforms for ophthalmological applications: The state-of-the-art and future perspectives. Biomaterials 2021; 270:120682. [PMID: 33529961 DOI: 10.1016/j.biomaterials.2021.120682] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 01/10/2021] [Accepted: 01/14/2021] [Indexed: 12/18/2022]
Abstract
Smart nano-micro platforms have been extensively applied for diverse biomedical applications, mostly focusing on cancer therapy. In comparison with conventional nanotechnology, the smart nano-micro matrix can exhibit specific response to exogenous or endogenous triggers, and thus can achieve multiple functions e.g. site-specific drug delivery, bio-imaging and detection of bio-molecules. These intriguing techniques have expanded into ophthalmology in recent years, yet few works have been summarized in this field. In this work, we provide the state-of-the-art of diverse nano-micro platforms based on both the conventional materials (e.g. natural or synthetic polymers, lipid nanomaterials, metal and metal oxide nanoparticles) and emerging nanomaterials (e.g. up-conversion nanoparticles, quantum dots and carbon materials) in ophthalmology, with some smart nano/micro platformers highlighted. The common ocular diseases studied in the field of nano-micro systems are firstly introduced, and their therapeutic method and the related drawback in clinic treatment are presented. The recent progress of different materials for diverse ocular applications is then demonstrated, with the representative nano- and micro-systems highlighted in detail. At last, an in-depth discussion on the clinical translation challenges faced in this field and the future direction are provided. This review would allow the researchers to design more smart nanomedicines in a more rational manner for specific ophthalmology applications.
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Affiliation(s)
- Qinghua Lyu
- Shenzhen Eye Hospital, School of Ophthalmology & Optometry Affiliated to Shenzhen University, Shenzhen, 518040, PR China; Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Ling Peng
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Xiangqian Hong
- Shenzhen Eye Hospital, School of Ophthalmology & Optometry Affiliated to Shenzhen University, Shenzhen, 518040, PR China; Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Taojian Fan
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Jingying Li
- Department of Ophthalmology, Peking University Shenzhen Hospital, Shenzhen, 518000, PR China
| | - Yubo Cui
- Department of Ophthalmology, Shenzhen People's Hospital (The Second Clinical Medical College,Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, PR China
| | - Han Zhang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, PR China.
| | - Jun Zhao
- Shenzhen Eye Hospital, School of Ophthalmology & Optometry Affiliated to Shenzhen University, Shenzhen, 518040, PR China; Department of Ophthalmology, Shenzhen People's Hospital (The Second Clinical Medical College,Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, PR China.
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20
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Ge YW, Liu XL, Yu DG, Zhu ZA, Ke QF, Mao YQ, Guo YP, Zhang JW. Graphene-modified CePO4 nanorods effectively treat breast cancer-induced bone metastases and regulate macrophage polarization to improve osteo-inductive ability. J Nanobiotechnology 2021; 19:11. [PMID: 33413447 PMCID: PMC7792230 DOI: 10.1186/s12951-020-00753-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 12/10/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Breast cancer bone metastasis has become one of the most common complications; however, it may cause cancer recurrence and bone nonunion, as well as local bone defects. METHODS Herein, In vitro, we verified the effect of bioscaffold materials on cell proliferation and apoptosis through a CCK8 trial, staining of live/dead cells, and flow cytometry. We used immunofluorescence technology and flow cytometry to verify whether bioscaffold materials regulate macrophage polarization, and we used ALP staining, alizarin red staining and PCR to verify whether bioscaffold material promotes bone regeneration. In vivo, we once again studied the effect of bioscaffold materials on tumors by measuring tumor volume in mice, Tunel staining, and caspase-3 immunofluorescence. We also constructed a mouse skull ultimate defect model to verify the effect on bone regeneration. RESULTS Graphene oxide (GO) nanoparticles, hydrated CePO4 nanorods and bioactive chitosan (CS) are combined to form a bioactive multifunctional CePO4/CS/GO scaffold, with characteristics such as photothermal therapy to kill tumors, macrophage polarization to promote blood vessel formation, and induction of bone formation. CePO4/CS/GO scaffold activates the caspase-3 proteasein local tumor cells, thereby lysing the DNA between nucleosomes and causing apoptosis. On the one hand, the as-released Ce3+ ions promote M2 polarization of macrophages, which secretes vascular endothelial growth factor (VEGF) and Arginase-1 (Arg-1), which promotes angiogenesis. On the other hand, the as-released Ce3+ ions also activated the BMP-2/Smad signaling pathway which facilitated bone tissue regeneration. CONCLUSION The multifunctional CePO4/CS/GO scaffolds may become a promising platform for therapy of breast cancer bone metastases.
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Affiliation(s)
- Yu-Wei Ge
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China
| | - Xiao-Liang Liu
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China
| | - De-Gang Yu
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China
| | - Zhen-An Zhu
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China
| | - Qin-Fei Ke
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, 200234, China
| | - Yuan-Qing Mao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China.
| | - Ya-Ping Guo
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, 200234, China.
| | - Jing-Wei Zhang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China.
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21
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Nanodiagnostics and Nanotherapeutics for age-related macular degeneration. J Control Release 2021; 329:1262-1282. [DOI: 10.1016/j.jconrel.2020.10.054] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/24/2020] [Accepted: 10/25/2020] [Indexed: 12/15/2022]
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22
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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: 42] [Impact Index Per Article: 10.5] [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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Pesaraklou A, Matin MM. Cerium oxide nanoparticles and their importance in cell signaling pathways for predicting cellular behavior. Nanomedicine (Lond) 2020; 15:1709-1718. [PMID: 32664817 DOI: 10.2217/nnm-2020-0104] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Cerium oxide nanoparticles (CeO2-NPs) have prolifically attracted immense interest of researchers due to their prominent anti-oxidant nature. However, these characteristics are accompanied by some ambiguities in other studies reporting their oxidant and toxic properties. In this regard previous literature has pointed to the importance of the NPs morphology and environmental conditions as well as biomolecules that induce a different response by initiating a cascade of activities. Therefore, due to the fact that signaling proteins are key mediators in cellular responses, the cognizance of the CeO2-NP-targeted signaling pathways could facilitate predicting the cellular behavior and thus more efficient applications of these NPs for clinical purposes. Consequently, a comprehensive review is necessary in this field, to clarify the impacts of CeO2-NPs on various signaling pathways.
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Affiliation(s)
- Atefeh Pesaraklou
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, 9177948974, Iran
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, 9177948974, Iran.,Novel Diagnostics & Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, 9177948974, Iran.,Stem Cells & Regenerative Medicine Research Group, Academic Center for Education, Culture & Research (ACECR), Khorasan Razavi Branch, Mashhad, 9177949367, Iran
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24
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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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25
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Wang K, Zheng M, Lester KL, Han Z. Light-induced Nrf2 -/- mice as atrophic age-related macular degeneration model and treatment with nanoceria laden injectable hydrogel. Sci Rep 2019; 9:14573. [PMID: 31601909 PMCID: PMC6787253 DOI: 10.1038/s41598-019-51151-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 09/25/2019] [Indexed: 12/31/2022] Open
Abstract
Elevated oxidative stress and associated reactive oxygen species (ROS) accumulation are hallmarks in the induction and progression of age-related macular degeneration (AMD). By exposing nuclear factor erythroid 2-related factor (Nrf2) knockout (Nrf2-/-) mice to mild white light, we were able to generate a new dry-AMD like murine model to the study. This animal model developed phenotypes of photoreceptor degeneration, retinal function impairment, ROS accumulation, and inflammation reaction in a relatively shorter time. In the treatment of this animal model we utilized an antioxidative and water soluble nanoparticle known as glycol chitosan coated cerium oxide nanoparticles (GCCNP). The delivery of GCCNP protected retina against progressive retinal oxidative damage. Further combination of GCCNP with alginate-gelatin based injectable hydrogel provided synergistic antioxidant effects and achieved a more rapid recovery of the retinal pigment epithelium and photoreceptor cells. This combined treatment technique has the potential to translate into a clinical intervention for the treatment of AMD.
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Affiliation(s)
- Kai Wang
- Department of Ophthalmology, the University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Min Zheng
- Department of Ophthalmology, the University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Kaitlyn Lee Lester
- Department of Ophthalmology, the University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Zongchao Han
- Department of Ophthalmology, the University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
- Carolina Institute for Nano Medicine, the University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
- Division of Pharmacoengineering & Molecular Pharmaceutics, Eshelman School of Pharmacy, the University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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26
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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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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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28
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Zhou Y, Li L, Li S, Li S, Zhao M, Zhou Q, Gong X, Yang J, Chang J. Autoregenerative redox nanoparticles as an antioxidant and glycation inhibitor for palliation of diabetic cataracts. NANOSCALE 2019; 11:13126-13138. [PMID: 31268450 DOI: 10.1039/c9nr02350j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Diabetic cataracts (DCs) are one of the most common ocular complications of diabetes, and easily causes blindness among diabetics. However, there are limited drugs to delay and prevent DCs. Research studies indicate that oxidative damage of the crystalline lens and nonenzymatic glycosylation of the lens protein play a key role in the pathogenesis of DCs. Hence, we developed a kind of autoregenerative redox nanoparticle, which was CeO2 NPs coated with PEG-PLGA (PCNPs). We first found that PCNPs could work not only as an antioxidant to protect lens epithelial cells from oxidative stress based on the repetitive elimination of reactive oxygen species (ROS), but also as a glycation inhibitor effectively restraining α-crystallin glycation and crosslinking, thereby keeping the lens transparent and alleviating DCs. Experimental results successfully validated the fact that the PCNPs were able to operate in eyes for a long time to attenuate lens opacity. We expect that this strategy will provide promising potential for the treatment of DCs.
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Affiliation(s)
- Yurui Zhou
- School of Life Sciences, Tianjin University, Tianjin Engineering Research Center for Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin 300072, China.
| | - Lu Li
- School of Life Sciences, Tianjin University, Tianjin Engineering Research Center for Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin 300072, China.
| | - Shenghui Li
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System Ministry of Education in China and Tianjin, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Shufei Li
- Department of Toxicology, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - Miao Zhao
- Department of Toxicology, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - Qinghong Zhou
- Department of Toxicology, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - Xiaoqun Gong
- School of Life Sciences, Tianjin University, Tianjin Engineering Research Center for Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin 300072, China.
| | - Jin Yang
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University Myopia Key Laboratory of Health PR China, Shanghai, 200031, China.
| | - Jin Chang
- School of Life Sciences, Tianjin University, Tianjin Engineering Research Center for Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin 300072, China.
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29
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Lian Q, Zhao M, Li T, Wu K, Zhu D, Shang B, Mei T, Li W, Lin Y, Mao F, Liu Y, Liu C, Lu L, Zhao L. In vivo detecting mouse persistent hyperplastic primary vitreous by Spectralis Optical Coherence Tomography. Exp Eye Res 2019; 181:271-276. [PMID: 30817926 DOI: 10.1016/j.exer.2019.02.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 01/15/2019] [Accepted: 02/20/2019] [Indexed: 10/27/2022]
Abstract
To identify imaging characteristics of mouse persistent hyperplastic primary vitreous (PHPV) by Spectralis Optical Coherence Tomography (OCT), as well as to assess and compare the sensitivity and precision of OCT with color photography (CP) and Fundus Fluorescein Angiography (FFA) imaging in detecting mouse PHPV. Notch4-/- C57BL/6J mice (224 eyes) aged from 3 months to 7 months were examined in this study. CP, FFA and OCT imaging were utilized to examine vitreous cavity and retina of mouse eyes. Horizontal and radial OCT scan volume was centered on the optic nerve head. Hematoxylin and eosin (H&E) staining was performed to validate PHPV. For color photography and FFA imaging, retrolental irregular fibrovascular membrane-like tissues were found in 33 eyes with/without blood vessels in vitreous cavity. Among them, 31 eyes were visualized with lateral and oblique linear hyperreflective opacities in vitreous cavity using Spectralis OCT. Position of PHPV in posterior segment of eyes was also measured via OCT. Mouse PHPV was validated by H&E staining. Typical hyperreflective opacities in vitreous cavity were detected in PHPV mouse using Spectralis OCT. Spectralis OCT imaging can effectively detect mouse PHPV as color photography and FFA.
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Affiliation(s)
- Qing Lian
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Minglei Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Tianzhong Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Keling Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Deliang Zhu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Bizhi Shang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Tingfang Mei
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Weihua Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Ying Lin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Fuxiang Mao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Yizhi Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Chujun Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.
| | - Lin Lu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.
| | - Ling Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China; Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
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30
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Wu J, Wang X, Wang Q, Lou Z, Li S, Zhu Y, Qin L, Wei H. Nanomaterials with enzyme-like characteristics (nanozymes): next-generation artificial enzymes (II). Chem Soc Rev 2019; 48:1004-1076. [DOI: 10.1039/c8cs00457a] [Citation(s) in RCA: 1628] [Impact Index Per Article: 325.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An updated comprehensive review to help researchers understand nanozymes better and in turn to advance the field.
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Affiliation(s)
- Jiangjiexing Wu
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Xiaoyu Wang
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Quan Wang
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Zhangping Lou
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Sirong Li
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Yunyao Zhu
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Li Qin
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Hui Wei
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
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31
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Yang D, Fa M, Gao L, Zhao R, Luo Y, Yao X. The effect of DNA on the oxidase activity of nanoceria with different morphologies. NANOTECHNOLOGY 2018; 29:385101. [PMID: 29949520 DOI: 10.1088/1361-6528/aacf86] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Many nanomaterials have been reported to have enzyme-like activities and are considered as nanozymes. As a multifunctional nanozyme, nanoceria has received much attention due to the dual oxidation states of Ce3+/Ce4+ which facilitate redox reactions at the particle surface. Despite the advantages of nanozymes, their limited activity and lack of enzyme specificity are still problems to be resolved. DNA is used to modulate the oxidase activity of nanoceria because it has recently become an important molecule in bionanotechnology. However, the current research on the effect of DNA on the oxidase mimetic activity of nanoceria is contradictory. It has been discovered that nanoceria used in recent works are different, including in particle size, doping and concentration, and these differences may affect the interaction between DNA and nanoceria, and then affect the oxidase mimetic activity of nanoceria. Hence, it is important to clarify the factors that affect the interaction between DNA with nanoceria. In this work, the interactions between DNA and nanoceria with three different morphologies (nanoparticles, nanocubes, and nanorods) have been investigated. Experimental results show that DNA has different influences on the oxidase mimetic activity of nanoceria with different morphologies. The oxidase mimetic activity of CeO2 nanoparticles and nanocubes increased, but that of CeO2 nanorods decreased, after DNA modification. The mechanism of these experimental results has been explored, and it has been found that it is the interaction between cerium and the phosphate backbone of DNA that changes with the different morphologies, resulting in the varying effect of DNA on the oxidase mimetic activity of nanoceria. These results may provide a better understanding of the effect of DNA on the oxidase mimetic activity of nanoceria and promote the applications of nanoceria.
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Affiliation(s)
- Dingding Yang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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32
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Xu C, Shi Q, Zhang L, Zhao H. High molecular weight hyaluronan attenuates fine particulate matter-induced acute lung injury through inhibition of ROS-ASK1-p38/JNK-mediated epithelial apoptosis. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 59:190-198. [PMID: 29625389 DOI: 10.1016/j.etap.2018.03.020] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 06/08/2023]
Abstract
Inhalation of fine particulate matter (PM2.5) is asscoiated with lung injury. High molecular weight hyaluronan (HMW-HA) is an essential constituent of extracellular matrix (ECM), exhibiting anti-oxidative and anti-inflammatory properties when administered by injection, inhalation, nebulization or gene delivery of HA synthases. The aim of the present study is to determine whether HMW-HA alleviates PM2.5-induced acute lung injury (ALI) and investigate the underlying mechanisms. We observed that HMW-HA suppressed pathological injury, inflammation, oxidative stress, edema and epithelial damage caused by PM2.5 in the lungs of the rats. The protective mechanism of HMW-HA was further explored in vitro. The results elucidated that reactive oxygen species (ROS) was involved in PM2.5-induced cell apoptosis, and HMW-HA mitigated the oxidative potential of PM2.5, subsequently inhibiting phosphorylation of ASK1 at Thr845, downstream phosphorylation of p38 and JNK, and eventual apoptosis. Our study indicates that HMW-HA is a promising strategy in the prevention of PM2.5-induced pulmonary damage.
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Affiliation(s)
- Chenming Xu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, PR China
| | - Qiwen Shi
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, PR China.
| | - Leifang Zhang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, PR China
| | - Hang Zhao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, PR China
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33
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Zou S, Zhu X, Zhang L, Guo F, Zhang M, Tan Y, Gong A, Fang Z, Ju H, Wu C, Du F. Biomineralization-Inspired Synthesis of Cerium-Doped Carbonaceous Nanoparticles for Highly Hydroxyl Radical Scavenging Activity. NANOSCALE RESEARCH LETTERS 2018; 13:76. [PMID: 29511878 PMCID: PMC5840111 DOI: 10.1186/s11671-017-2427-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 12/28/2017] [Indexed: 05/28/2023]
Abstract
Cerium oxide nanoparticles recently have received extensive attention in biomedical applications due to their excellent anti-oxidation performance. In this study, a simple, mild, and green approach was developed to synthesize cerium-doped carbonaceous nanoparticles (Ce-doped CNPs) using bio-mineralization of bull serum albumin (BSA) as precursor. The resultant Ce-doped CNPs exhibited uniform and ultrasmall morphology with an average size of 14.7 nm. XPS and FTIR results revealed the presence of hydrophilic group on the surface of Ce-doped CNPs, which resulted in excellent dispersity in water. The CCK-8 assay demonstrated that Ce-doped CNPs possessed favorable biocompatibility and negligible cytotoxicity. Using H2O2-induced reactive oxygen species (ROS) as model, Ce-doped CNPs showed highly hydroxyl radical scavenging capability. Furthermore, flow cytometry and live-dead staining results indicated that Ce-doped CNPs protected cells from H2O2-induced damage in a dose-dependent effect, which provided a direct evidence for anti-oxidative performance. These findings suggest that Ce-doped CNPs as novel ROS scavengers may provide a potential therapeutic prospect in treating diseases associated with oxidative stress.
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Affiliation(s)
- Shenqiang Zou
- Department of Hepatosis, The Third people’ s Hospital of Zhenjiang, Jiangsu University, 212021 Zhenjiang, People’s Republic of China
| | - Xiaofang Zhu
- School of Medicine, Jiangsu University, 212013 Zhenjiang, People’s Republic of China
| | - Lirong Zhang
- Department of Radiology, Affiliated Hospital of Jiangsu University, 212013 Zhenjiang, People’s Republic of China
| | - Fan Guo
- Department of Hepatosis, The Third people’ s Hospital of Zhenjiang, Jiangsu University, 212021 Zhenjiang, People’s Republic of China
| | - Miaomiao Zhang
- School of Medicine, Jiangsu University, 212013 Zhenjiang, People’s Republic of China
| | - Youwen Tan
- Department of Hepatosis, The Third people’ s Hospital of Zhenjiang, Jiangsu University, 212021 Zhenjiang, People’s Republic of China
| | - Aihua Gong
- School of Medicine, Jiangsu University, 212013 Zhenjiang, People’s Republic of China
| | - Zhengzou Fang
- School of Medicine, Jiangsu University, 212013 Zhenjiang, People’s Republic of China
| | - Huixiang Ju
- School of Medicine, Jiangsu University, 212013 Zhenjiang, People’s Republic of China
| | - Chaoyang Wu
- Department of Oncology, The Affiliated People’s Hospital, Jiangsu University, Zhenjiang, 212002 Jiangsu People’s Republic of China
| | - Fengyi Du
- Department of Hepatosis, The Third people’ s Hospital of Zhenjiang, Jiangsu University, 212021 Zhenjiang, People’s Republic of China
- School of Medicine, Jiangsu University, 212013 Zhenjiang, People’s Republic of China
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Wang Y, Rajala A, Rajala RVS. Nanoparticles as Delivery Vehicles for the Treatment of Retinal Degenerative Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1074:117-123. [PMID: 29721935 DOI: 10.1007/978-3-319-75402-4_15] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Over the last few years, huge progress has been made in the understanding of molecular mechanisms underlying the pathogenesis of retinal degenerative diseases. Such knowledge has led to the development of gene therapy approaches to treat these devastating disorders. Non-viral gene delivery has been recognized as a prospective treatment for retinal degenerative diseases. In this review, we will summarize the constituent characteristics and recent applications of three representative nanoparticles (NPs) in ocular therapy.
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Affiliation(s)
- Yuhong Wang
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Dean McGee Eye Institute, Oklahoma City, OK, USA
| | - Ammaji Rajala
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Dean McGee Eye Institute, Oklahoma City, OK, USA
| | - Raju V S Rajala
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA. .,Dean McGee Eye Institute, Oklahoma City, OK, USA. .,Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA. .,Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
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Qiu F, Matlock G, Chen Q, Zhou K, Du Y, Wang X, Ma JX. Therapeutic Effects of PPARα Agonist on Ocular Neovascularization in Models Recapitulating Neovascular Age-Related Macular Degeneration. Invest Ophthalmol Vis Sci 2017; 58:5065-5075. [PMID: 28980001 PMCID: PMC5633006 DOI: 10.1167/iovs.17-22091] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Purpose This study was designed to evaluate effects of fenofibric acid (Feno-FA), a peroxisome proliferator–activated receptor-alpha (PPARα) agonist, on ocular neovascularization (NV) in models recapitulating neovascular age-related macular degeneration (AMD), and to explore whether the effects are PPARα dependent. Methods Laser-induced choroidal NV (CNV) in rats and very low-density lipoprotein receptor knockout (Vldlr−/−) mice received daily intraperitoneal injections of Feno-FA or vehicle. Vascular leakage was examined by fundus fluorescein angiography and permeability assay using Evans blue as tracer. In CNV rats, severity of CNV was evaluated by CNV areas and CNV volume. In Vldlr−/− mice, subretinal NV (SRNV) and intraretinal NV (IRNV) were quantified in choroid flat mount and retina flat mount, respectively. Inflammatory factors were measured using Western blotting and retinal leukostasis assay. Further, Pparα−/− mice and age-matched wild-type (WT) mice were used for laser-induced CNV and treated with Feno-FA to explore the underlying mechanism. Results Feno-FA significantly reduced vascular leakage in CNV rats and Vldlr−/− mice, reduced CNV volume in laser-induced CNV rats, and suppressed SRNV and IRNV in Vldlr−/− mice. In addition, Feno-FA downregulated the expression of inflammatory factors, including VEGF, TNF-α, and intercellular cell adhesion molecule-1 (ICAM-1), in the eyecups of CNV rats and decreased adherent retinal leukocytes in Vldlr−/− mice. Furthermore, Pparα−/− mice developed more severe CNV compared with WT mice, and PPARα knockout abolished the beneficial effects of Feno-FA on CNV. Conclusions Feno-FA has therapeutic effects on ocular NV in models recapitulating neovascular AMD through a PPARα-dependent mechanism.
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Affiliation(s)
- Fangfang Qiu
- Department of Physiology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Greg Matlock
- Department of Physiology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Qian Chen
- Department of Physiology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Kelu Zhou
- Department of Physiology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Yanhong Du
- Department of Physiology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Xiang Wang
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Jian-Xing Ma
- Department of Physiology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
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Das J, Choi YJ, Han JW, Reza AMMT, Kim JH. Nanoceria-mediated delivery of doxorubicin enhances the anti-tumour efficiency in ovarian cancer cells via apoptosis. Sci Rep 2017; 7:9513. [PMID: 28842609 PMCID: PMC5572723 DOI: 10.1038/s41598-017-09876-w] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 07/31/2017] [Indexed: 12/26/2022] Open
Abstract
Nanocarriers are widely used for effective delivery of anticancer drugs to tumours with potential to improve cancer treatment. Here, we developed a nanoceria (CeO2)-based system for delivery of the anti-cancer drug doxorubicin (DOX) to human ovarian cancer cells. Negatively charged nanoceria could conjugate with the cationic DOX via electrostatic interaction under physiological conditions, forming DOX-loaded nanoceria (CeO2/DOX). CeO2/DOX particles displayed nearly spherical shapes, along with superior drug-loading content (22.41%), loading efficiency (99.51%), and higher cellular uptake and drug release behaviours compared to free DOX. Moreover, DOX was released faster from CeO2/DOX under reductive acidic conditions (pH 5.0, 10 mM glutathione) than under physiological conditions (pH 7.4). The initial intracellular DOX concentration was higher in the free DOX groups than in the CeO2/DOX groups, but quickly reduced to 25% of the initial concentration after 24-h culture. By contrast, CeO2/DOX showed sustained DOX release over time and maintained a high intracellular DOX concentration for up to 72 h. In vitro assays showed that CeO2/DOX exhibited higher cell proliferation inhibition and apoptosis compared with free DOX. These results highlight DOX-loaded nanoceria as a promising therapeutic agent for cancer treatment.
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Affiliation(s)
- Joydeep Das
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, 143-701, South Korea
| | - Yun-Jung Choi
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, 143-701, South Korea
| | - Jae Woong Han
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, 143-701, South Korea
| | - Abu Musa Md Talimur Reza
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, 143-701, South Korea
| | - Jin-Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, 143-701, South Korea.
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Rzigalinski BA, Carfagna CS, Ehrich M. Cerium oxide nanoparticles in neuroprotection and considerations for efficacy and safety. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 9:10.1002/wnan.1444. [PMID: 27860449 PMCID: PMC5422143 DOI: 10.1002/wnan.1444] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/22/2016] [Accepted: 10/02/2016] [Indexed: 12/20/2022]
Abstract
Cerium oxide nanoparticles have widespread use in the materials industry, and have recently come into consideration for biomedical use due to their potent regenerative antioxidant properties. Given that the brain is one of the most highly oxidative organs in the body, it is subject to some of the greatest levels of oxidative stress, particularly in neurodegenerative disease. Therefore, cerium oxide nanoparticles are currently being investigated for efficacy in several neurodegenerative disorders and have shown promising levels of neuroprotection. This review discusses the basis for cerium oxide nanoparticle use in neurodegenerative disease and its hypothesized mechanism of action. The review focuses on an up-to-date summary of in vivo work with cerium oxide nanoparticles in animal models of neurodegenerative disease. Additionally, we examine the current state of information regarding biodistribution, toxicity, and safety for cerium oxide nanoparticles at the in vivo level. Finally, we discuss future directions that are necessary if this nanopharmaceutical is to move up from the bench to the bedside. WIREs Nanomed Nanobiotechnol 2017, 9:e1444. doi: 10.1002/wnan.1444 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
| | - Charles S Carfagna
- Molecular Materials Discovery Center, Macromolecular Innovations Institute, Blacksburg, VA, USA
| | - Marion Ehrich
- Virginia Maryland College of Veterinary Medicine, Blacksburg, VA, USA
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Mitra RN, Gao R, Zheng M, Wu MJ, Voinov MA, Smirnov AI, Smirnova TI, Wang K, Chavala S, Han Z. Glycol Chitosan Engineered Autoregenerative Antioxidant Significantly Attenuates Pathological Damages in Models of Age-Related Macular Degeneration. ACS NANO 2017; 11:4669-4685. [PMID: 28463509 DOI: 10.1021/acsnano.7b00429] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Age-related macular degeneration (AMD) is the foremost cause of irreversible blindness in people over the age of 65 especially in developing countries. Therefore, an exploration of effective and alternative therapeutic interventions is an unmet medical need. It has been established that oxidative stress plays a key role in the pathogenesis of AMD, and hence, neutralizing oxidative stress is an effective therapeutic strategy for treatment of this serious disorder. Owing to autoregenerative properties, nanoceria has been widely used as a nonenzymatic antioxidant in the treatment of oxidative stress related disorders. Yet, its potential clinical implementation has been greatly hampered by its poor water solubility and lack of reliable tracking methodologies/processes and hence poor absorption, distribution, and targeted delivery. The water solubility and surface engineering of a drug with biocompatible motifs are fundamental to pharmaceutical products and precision medicine. Here, we report an engineered water-soluble, biocompatible, trackable nanoceria with enriched antioxidant activity to scavenge intracellular reactive oxygen species (ROS). Experimental studies with in vitro and in vivo models demonstrated that this antioxidant is autoregenerative and more active in inhibiting laser-induced choroidal neovascularization by decreasing ROS-induced pro-angiogenic vascular endothelial growth factor (VEGF) expression, cumulative oxidative damage, and recruitment of endothelial precursor cells without exhibiting any toxicity. This advanced formulation may offer a superior therapeutic effect to deal with oxidative stress induced pathogeneses, such as AMD.
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Affiliation(s)
| | - Ruijuan Gao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, China
| | | | | | - Maxim A Voinov
- Department of Chemistry, North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Alex I Smirnov
- Department of Chemistry, North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Tatyana I Smirnova
- Department of Chemistry, North Carolina State University , Raleigh, North Carolina 27695, United States
| | | | - Sai Chavala
- North Texas Eye Research Institute at University of North Texas Health Science Center , Fort Worth, Texas 76107, United States
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Cheng H, Liao ZL, Ning LH, Chen HY, Wei SS, Yang XC, Guo H. Alendronate-anchored PEGylation of ceria nanoparticles promotes human hepatoma cell proliferation via AKT/ERK signaling pathways. Cancer Med 2017; 6:374-381. [PMID: 28070935 PMCID: PMC5313637 DOI: 10.1002/cam4.949] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 09/23/2016] [Accepted: 09/27/2016] [Indexed: 02/01/2023] Open
Abstract
Previous work has suggested that ceria nanoparticles (CNPs) have regenerative antioxidant properties, which have motivated researchers to consider CNPs as therapeutic agents for treating a number of diseases, including cancer. Recent studies have shown CNPs to be toxic to cancer cells, to inhibit invasion and sensitize cancer cells to radiotherapy. In addition, several hydrophilic polymers have been used to coat the CNP surface in order to enhance its properties of extensive biocompatibility and systemic nontoxicity to normal cells and tissues. However, the results of previous studies were based on high CNP doses (10 μg/mL or more), and these doses may cause serious side effects in clinical applications. The impact of low CNP doses on tumor cells remains unknown. In this study, we report experiments indicating that CNPs‐AL‐ polyethylene glycol (PEG)600, a type of surface‐modified CNP that is more stable and less toxic than traditional CNPs could promote proliferation of hepatoma cells in a dose‐dependent manner. In addition, further research showed that a low dose (0.01 μg/mL) of CNPs‐AL‐PEG600 could reduce hepatoma cell apoptosis and activate AKT/ERK signaling pathways. These results may provide information that is important for using CNPs‐AL‐PEG600 as a therapeutic agent in clinical cancer treatments.
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Affiliation(s)
- Heng Cheng
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Zhong-Li Liao
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Lin-Hong Ning
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Hong-Yan Chen
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Shan-Shan Wei
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Xiao-Chao Yang
- Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing, 400038, China
| | - Hong Guo
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
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Dong Y, Cai X, Wu Y, Liu Y, Deng L, Chen H. Insights from Genetic Model Systems of Retinal Degeneration: Role of Epsins in Retinal Angiogenesis and VEGFR2 Signaling. JOURNAL OF NATURE AND SCIENCE 2017; 3:e281. [PMID: 28191500 PMCID: PMC5303005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The retina is a light sensitive tissue that contains specialized photoreceptor cells called rods and cones which process visual signals. These signals are relayed to the brain through interneurons and the fibers of the optic nerve. The retina is susceptible to a variety of degenerative diseases, including age-related macular degeneration (AMD), diabetic retinopathy (DR), retinitis pigmentosa (RP) and other inherited retinal degenerations. In order to reveal the mechanism underlying these diseases and to find methods for the prevention/treatment of retinal degeneration, animal models have been generated to mimic human eye diseases. In this paper, several well-characterized and commonly used animal models are reviewed. Of particular interest are the contributions of these models to our understanding of the mechanisms of retinal degeneration and thereby providing novel treatment options including gene therapy, stem cell therapy, nanomedicine, and CRISPR/Cas9 genome editing. Role of newly-identified adaptor protein epsins from our laboratory is discussed in retinal angiogenesis and VEGFR2 signaling.
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Affiliation(s)
- Yunzhou Dong
- Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Xue Cai
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Yong Wu
- Department of Internal Medicine, Charles R. Drew University of Medicine & Sciences, University of California School of Medicine, Los Angeles, CA 90059, USA
| | - Yanjun Liu
- Department of Internal Medicine, Charles R. Drew University of Medicine & Sciences, University of California School of Medicine, Los Angeles, CA 90059, USA
| | - Lin Deng
- Department of Biological Chemistry & Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Hong Chen
- Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
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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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Cai X, McGinnis JF. Diabetic Retinopathy: Animal Models, Therapies, and Perspectives. J Diabetes Res 2016; 2016:3789217. [PMID: 26881246 PMCID: PMC4736804 DOI: 10.1155/2016/3789217] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 12/06/2015] [Indexed: 12/12/2022] Open
Abstract
Diabetic retinopathy (DR) is one of the major complications of diabetes. Although great efforts have been made to uncover the mechanisms underlying the pathology of DR, the exact causes of DR remain largely unknown. Because of multifactor involvement in DR etiology, currently no effective therapeutic treatments for DR are available. In this paper, we review the pathology of DR, commonly used animal models, and novel therapeutic approaches. Perspectives and future directions for DR treatment are discussed.
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Affiliation(s)
- Xue Cai
- Department of Ophthalmology, Dean McGee Eye Institute, Oklahoma University Health Sciences Center, Oklahoma City, OK 73104, USA
- *Xue Cai: and
| | - James F. McGinnis
- Department of Ophthalmology, Dean McGee Eye Institute, Oklahoma University Health Sciences Center, Oklahoma City, OK 73104, USA
- Department of Cell Biology, Oklahoma University Health Sciences Center, Oklahoma City, OK 73104, USA
- Oklahoma Center for Neuroscience, Oklahoma University Health Sciences Center, Oklahoma City, OK 73104, USA
- *James F. McGinnis:
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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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Popov A, Zaichkina SI, Popova NR, Rozanova OM, Romanchenko SP, Ivanova OS, Smirnov AA, Mironova EV, Selezneva II, Ivanov VK. Radioprotective effects of ultra-small citrate-stabilized cerium oxide nanoparticles in vitro and in vivo. RSC Adv 2016. [DOI: 10.1039/c6ra18566e] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Different radioprotective action mechanisms of CeO2 nanoparticles in vitro and in vivo are demonstrated and discussed.
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Affiliation(s)
- A. L. Popov
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - S. I. Zaichkina
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - N. R. Popova
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - O. M. Rozanova
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - S. P. Romanchenko
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - O. S. Ivanova
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| | - A. A. Smirnov
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - E. V. Mironova
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - I. I. Selezneva
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
- Pushchino State Institute of Natural Sciences
| | - V. K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
- National Research Tomsk State University
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Sheu SJ, Chao YM, Liu NC, Chan JY. Differential effects of bevacizumab, ranibizumab and aflibercept on cell viability, phagocytosis and mitochondrial bioenergetics of retinal pigment epithelial cell. Acta Ophthalmol 2015; 93:e631-43. [PMID: 25975662 DOI: 10.1111/aos.12745] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 04/03/2015] [Indexed: 12/28/2022]
Abstract
PURPOSE To evaluate the short- and long-term effects of most clinically used anti-vascular endothelial growth factor agents, including bevacizumab, ranibizumab or aflibercept, on cell viability, phagocytosis, mitochondrial bioenergetics and the oxidant acrolein-induced oxidative stress of human adult retinal pigment epithelial (ARPE)-19 cells. METHODS In cultured ARPE-19 cells, cell viability was measured by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay, phagocytotic activity and intracellular reactive oxygen species (ROS) level were determined by flow cytometry, mitochondrial bioenergetics was assessed using a Seahorse XF24 Extracellular Flux Analyzer, and protein expression was measured by Western blotting. RESULTS Long-term exposure to all three agents had no effect on cell viability; but rescued the ARPE-19 cells from acrolein-induced decrease in cell viability. Bevacizumab, but not ranibizumab or aflibercept, suppressed the phagocytotic activity of ARPE-19 cells and exerted significantly less protection against acrolein-induced inhibition of phagocytosis. Both ranibizumab and aflibercept increased basal respiratory rate and maximal mitochondrial respiratory capacity after 1-hr exposure; but returned to baseline following 24- or 72-hr exposure. In contrast, both responses were reduced on short-term exposure, but augmented after long-term exposure to bevacizumab. Long-term pretreatment with all three agents reversed acrolein-induced impairment of mitochondrial bioenergetics, overproduction of ROS and phosphorylation of the mitogen-activated protein kinases in ARPE-19 cells. CONCLUSION Bevacizumab might affect mitochondrial bioenergetics differently from that by ranibizumab and aflibercept. Ranibizumab and aflibercept at their therapeutic dose protect against acrolein-induced oxidative cytotoxicity in human ARPE-19 cells via an increase in mitochondrial bioenergetics. An early protective action on mitochondrial bioenergetic capacity might be used to predict possible long-term antioxidative effects of the agents in the eye.
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Affiliation(s)
- Shwu-Jiuan Sheu
- Department of Ophthalmology; Kaohsiung Veterans General Hospital; Kaohsiung Taiwan
- School of Medicine; National Yang-Ming University; Taipei Taiwan
| | - Yung-Mei Chao
- Center for Translational Research in Biomedical Sciences; Kaohsiung Chang Gung Memorial Hospital; Kaohsiung Taiwan
| | - Ni-Chun Liu
- Department of Ophthalmology; Kaohsiung Veterans General Hospital; Kaohsiung Taiwan
- Institute of Biological Science; National Sun Yet-san University; Kaohsiung Taiwan
| | - Julie Y.H. Chan
- Center for Translational Research in Biomedical Sciences; Kaohsiung Chang Gung Memorial Hospital; Kaohsiung Taiwan
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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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Johnson V, Xiang M, Chen Z, Junge HJ. Neurite Mistargeting and Inverse Order of Intraretinal Vascular Plexus Formation Precede Subretinal Vascularization in Vldlr Mutant Mice. PLoS One 2015; 10:e0132013. [PMID: 26177550 PMCID: PMC4503745 DOI: 10.1371/journal.pone.0132013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 06/09/2015] [Indexed: 02/07/2023] Open
Abstract
In the retina blood vessels are required to support a high metabolic rate, however, uncontrolled vascular growth can lead to impaired vision and blindness. Subretinal vascularization (SRV), one type of pathological vessel growth, occurs in retinal angiomatous proliferation and proliferative macular telangiectasia. In these diseases SRV originates from blood vessels within the retina. We use mice with a targeted disruption in the Vldl-receptor (Vldlr) gene as a model to study SRV with retinal origin. We find that Vldlr mRNA is strongly expressed in the neuroretina, and we observe both vascular and neuronal phenotypes in Vldlr-/- mice. Unexpectedly, horizontal cell (HC) neurites are mistargeted prior to SRV in this model, and the majority of vascular lesions are associated with mistargeted neurites. In Foxn4-/- mice, which lack HCs and display reduced amacrine cell (AC) numbers, we find severe defects in intraretinal capillary development. However, SRV is not suppressed in Foxn4-/-;Vldlr-/- mice, which reveals that mistargeted HC neurites are not required for vascular lesion formation. In the absence of VLDLR, the intraretinal capillary plexuses form in an inverse order compared to normal development, and subsequent to this early defect, vascular proliferation is increased. We conclude that SRV in the Vldlr-/- model is associated with mistargeted neurites and that SRV is preceded by altered retinal vascular development.
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Affiliation(s)
- Verity Johnson
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, Colorado, 80309, United States of America
| | - Mengqing Xiang
- Center for Advanced Biotechnology and Medicine and Department of Pediatrics, Rutgers University-Robert Wood Johnson Medical School, Piscataway, New Jersey, 08901, United States of America
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, 510060, China
| | - Zhe Chen
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, Colorado, 80309, United States of America
| | - Harald J. Junge
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, Colorado, 80309, United States of America
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Antioxidant Potential and Toxicity Study of the Cerium Oxide Nanoparticles Synthesized by Microwave-Mediated Synthesis. Appl Biochem Biotechnol 2015; 177:148-61. [PMID: 26137877 DOI: 10.1007/s12010-015-1734-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 06/23/2015] [Indexed: 01/13/2023]
Abstract
Monodispersed cerium oxide nanoparticle has been synthesized by microwave-mediated hydrothermal as well as microwave-mediated solvothermal synthesis. X-ray diffraction (XRD) data shows that the synthesized particles are single phase. SEM and TEM analysis suggest that particle synthesized by microwave-mediated solvothermal method are less agglomerated. In vitro toxicology study of the synthesized nanoceria particles has shown good free radical scavenging activity for NO and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical assayed except superoxide radical within a concentration range of 25 to 75 ng ml(-1). Nanoceria particle also showed inhibition of Fe-ascorbate-induced lipid peroxidation (LPx) in chick liver mitochondrial fractions. Solvothermally synthesized nanoceria showed better protection against Fe-ascorbate-induced LPx than the hydrothermal one while the hydrothermally synthesized nanoceria showed better DPPH and NO scavenging activity. The ceria nanoparticles also prevented Fe-ascorbate-H2O2-induced carbonylation of bovine serum albumin in a dose-dependent manner. At higher concentration, i.e., 100 ng ml(-1), the synthesized nanoparticles showed a reverse trend in all the parameters measured indicating its toxicity at higher doses.
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50
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Szymanski CJ, Munusamy P, Mihai C, Xie Y, Hu D, Gilles MK, Tyliszczak T, Thevuthasan S, Baer DR, Orr G. Shifts in oxidation states of cerium oxide nanoparticles detected inside intact hydrated cells and organelles. Biomaterials 2015; 62:147-54. [PMID: 26056725 DOI: 10.1016/j.biomaterials.2015.05.042] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 05/25/2015] [Indexed: 11/19/2022]
Abstract
Cerium oxide nanoparticles (CNPs) have been shown to induce diverse biological effects, ranging from toxic to beneficial. The beneficial effects have been attributed to the potential antioxidant activity of CNPs via certain redox reactions, depending on their oxidation state or Ce(3+)/Ce(4+) ratio. However, this ratio is strongly dependent on the environment and age of the nanoparticles and it is unclear whether and how the complex intracellular environment impacts this ratio and the possible redox reactions of CNPs. To identify any changes in the oxidation state of CNPs in the intracellular environment and better understand their intracellular reactions, we directly quantified the oxidation states of CNPs outside and inside intact hydrated cells and organelles using correlated scanning transmission x-ray and super resolution fluorescence microscopies. By analyzing hundreds of small CNP aggregates, we detected a shift to a higher Ce(3+)/Ce(4+) ratio in CNPs inside versus outside the cells, indicating a net reduction of CNPs in the intracellular environment. We further found a similar ratio in the cytoplasm and in the lysosomes, indicating that the net reduction occurs earlier in the internalization pathway. Together with oxidative stress and toxicity measurements, our observations identify a net reduction of CNPs in the intracellular environment, which is consistent with their involvement in potentially beneficial oxidation reactions, but also point to interactions that can negatively impact the health of the cells.
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Affiliation(s)
- Craig J Szymanski
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Prabhakaran Munusamy
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Cosmin Mihai
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Yumei Xie
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Dehong Hu
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Mary K Gilles
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Tolek Tyliszczak
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | | | - Donald R Baer
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Galya Orr
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
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