1
|
Zhang J, Sharma D, Dinabandhu A, Sanchez J, Applewhite B, Jee K, Deshpande M, Flores-Bellver M, Hu MW, Guo C, Salman S, Hwang Y, Anders NM, Rudek MA, Qian J, Canto-Soler MV, Semenza GL, Montaner S, Sodhi A. Targeting hypoxia-inducible factors with 32-134D safely and effectively treats diabetic eye disease in mice. J Clin Invest 2023; 133:e163290. [PMID: 37227777 PMCID: PMC10313368 DOI: 10.1172/jci163290] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 05/11/2023] [Indexed: 05/27/2023] Open
Abstract
Many patients with diabetic eye disease respond inadequately to anti-VEGF therapies, implicating additional vasoactive mediators in its pathogenesis. We demonstrate that levels of angiogenic proteins regulated by HIF-1 and -2 remain elevated in the eyes of people with diabetes despite treatment with anti-VEGF therapy. Conversely, by inhibiting HIFs, we normalized the expression of multiple vasoactive mediators in mouse models of diabetic eye disease. Accumulation of HIFs and HIF-regulated vasoactive mediators in hyperglycemic animals was observed in the absence of tissue hypoxia, suggesting that targeting HIFs may be an effective early treatment for diabetic retinopathy. However, while the HIF inhibitor acriflavine prevented retinal vascular hyperpermeability in diabetic mice for several months following a single intraocular injection, accumulation of acriflavine in the retina resulted in retinal toxicity over time, raising concerns for its use in patients. Conversely, 32-134D, a recently developed HIF inhibitor structurally unrelated to acriflavine, was not toxic to the retina, yet effectively inhibited HIF accumulation and normalized HIF-regulated gene expression in mice and in human retinal organoids. Intraocular administration of 32-134D prevented retinal neovascularization and vascular hyperpermeability in mice. These results provide the foundation for clinical studies assessing 32-134D for the treatment of patients with diabetic eye disease.
Collapse
Affiliation(s)
- Jing Zhang
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Deepti Sharma
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Aumreetam Dinabandhu
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Oncology and Diagnostic Sciences, School of Dentistry, Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, Maryland, USA
| | - Jaron Sanchez
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Brooks Applewhite
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Kathleen Jee
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Monika Deshpande
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Miguel Flores-Bellver
- CellSight Ocular Stem Cell and Regeneration Research Program, Department of Ophthalmology, Sue Anschutz-Rodgers Eye Center, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Ming-Wen Hu
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Chuanyu Guo
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Shaima Salman
- Armstrong Oxygen Biology Research Center; Vascular Program, Institute for Cell Engineering; Departments of Pediatrics, Medicine, Oncology, Radiation Oncology, Biological Chemistry, and Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Yousang Hwang
- Armstrong Oxygen Biology Research Center; Vascular Program, Institute for Cell Engineering; Departments of Pediatrics, Medicine, Oncology, Radiation Oncology, Biological Chemistry, and Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Nicole M. Anders
- The Sidney Kimmel Comprehensive Cancer Center, Department of Oncology and the Division of Clinical Pharmacology at the School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Michelle A. Rudek
- The Sidney Kimmel Comprehensive Cancer Center, Department of Oncology and the Division of Clinical Pharmacology at the School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jiang Qian
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - M. Valeria Canto-Soler
- CellSight Ocular Stem Cell and Regeneration Research Program, Department of Ophthalmology, Sue Anschutz-Rodgers Eye Center, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Gregg L. Semenza
- Armstrong Oxygen Biology Research Center; Vascular Program, Institute for Cell Engineering; Departments of Pediatrics, Medicine, Oncology, Radiation Oncology, Biological Chemistry, and Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Silvia Montaner
- Department of Oncology and Diagnostic Sciences, School of Dentistry, Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, Maryland, USA
| | - Akrit Sodhi
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| |
Collapse
|
2
|
Kim D, Lee H, Kwon S, Sung YJ, Song WK, Park S. Bilayer Hydrogel Sheet-Type Intraocular Microrobot for Drug Delivery and Magnetic Nanoparticles Retrieval. Adv Healthc Mater 2020; 9:e2000118. [PMID: 32431072 DOI: 10.1002/adhm.202000118] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/08/2020] [Indexed: 12/27/2022]
Abstract
By virtue of minimum invasiveness and driving ability using a magnetic field, drug delivery with the aid of a microrobot has an inherent potential for targeted treatment for the eye. The use of microrobots, however, has the limitation of leaving magnetic nanoparticles (MNPs) in the eye that can cause side effects. In this study, a bilayer hydrogel microrobot capable of retrieving MNPs after drug delivery is proposed that overcomes the limitations of existing microrobots. The bilayer hydrogel microrobot is composed of an MNPs layer and a therapeutic layer. Upon applying an alternating magnetic field (AMF) at the target point, the therapeutic layer is dissolved to deliver drug particles, and then the MNPs layer can be retrieved using a magnetic field. The targeting and MNPs retrieval tests validate the drug delivery and MNPs retrieval ability of the microrobot. The ex vivo bovine vitreous and in vitro cell tests demonstrate the potential for the vitreous migration of the microrobot and the therapeutic effect against retinoblastoma Y79 cancer cells. This bilayer hydrogel sheet-type intraocular microrobot provides a new drug delivery paradigm that overcomes the limitations of microrobot by maintaining the advantages of conventional microrobots in delivering drugs to the eye and retrieving MNPs after drug delivery.
Collapse
Affiliation(s)
- Dong‐In Kim
- Department of Robotics EngineeringDaegu Gyeongbuk Institute of Science and Technology Daegu 42988 Republic of Korea
| | - Hyoryong Lee
- Department of Robotics EngineeringDaegu Gyeongbuk Institute of Science and Technology Daegu 42988 Republic of Korea
| | - Su‐Hyun Kwon
- Department of Robotics EngineeringDaegu Gyeongbuk Institute of Science and Technology Daegu 42988 Republic of Korea
| | - Young Je Sung
- Department of OphthalmologyCHA Bundang Medical CenterCHA University College of Medicine Bundang‐gu Seongnam Gyunggido 13496 Republic of Korea
| | - Won Kyung Song
- Department of OphthalmologyCHA Bundang Medical CenterCHA University College of Medicine Bundang‐gu Seongnam Gyunggido 13496 Republic of Korea
| | - Sukho Park
- Department of Robotics EngineeringDaegu Gyeongbuk Institute of Science and Technology Daegu 42988 Republic of Korea
| |
Collapse
|
3
|
El-Sayyad HIH, Khalifa SA, AL-Gebaly AS, El-Mansy AA. Aging related changes of retina and optic nerve of Uromastyx aegyptia and Falco tinnunculus. ACS Chem Neurosci 2014; 5:39-50. [PMID: 24215233 DOI: 10.1021/cn400154k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Aging is a biological phenomenon that involves gradual degradation of the structure and function of the retina and optic nerve. To our knowledge, little is known about the aging-related ocular cell loss in avian (Falco tinnunculus) and reptilian species (Uromastyx aegyptia). A selected 90 animals of pup, middle, and old age U. aegyptia (reptilian) and F. tinnunculus (avian) were used. The retinae and optic nerves were investigated by light and transmission electron microscopy (TEM) and assessments of neurotransmitters, antioxidant enzymes (catalase, superoxide dismustase and glutathione s transferase), caspase-3 and -7, malonadialdhyde, and DNA fragmentation. Light and TEM observations of the senile specimens revealed apparent deterioration of retinal cell layers, especially the pigmented epithelium and photoreceptor outer segments. Their inclusions of melanin were replaced by lipofuscins. Also, vacuolar degeneration and demyelination of the optic nerve axons were detected. Concomitantly, there was a marked increase of oxidative stress involved reduction of neurotransmitters and antioxidant enzymes and an increase of lipid peroxidation, caspase-3 and -7, subG0/G1 apoptosis, and P53. We conclude that aging showed an inverse relationship with the neurotransmitters and antioxidant enzymes and a linear relationship of caspases, malondialdhyde, DNA apoptosis, and P53 markers of cell death. These markers reflected the retinal cytological alterations and lipofuscin accumulation within inner segments.
Collapse
Affiliation(s)
| | - Soad A. Khalifa
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura 002050, Egypt
| | - Asma S. AL-Gebaly
- Department of Biology, Science College, Princess Noura Bint Abdul Rahman University, Riyadh 11421, Kingdom of Saudia Arabia
| | - Ahmed A. El-Mansy
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura 002050, Egypt
| |
Collapse
|
4
|
Cabrera MP, Chihuailaf RH. Antioxidants and the integrity of ocular tissues. Vet Med Int 2011; 2011:905153. [PMID: 21789267 PMCID: PMC3140028 DOI: 10.4061/2011/905153] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Revised: 03/21/2011] [Accepted: 05/13/2011] [Indexed: 11/30/2022] Open
Abstract
Oxygen-derived free radicals are normally generated in many pathways. These radicals can interact with various cellular components and induce cell injury. When free radicals exceed the antioxidant capacity, cell injury causes diverse pathologic changes in the organs. The imbalance between the generation of free radicals and antioxidant defence is known as oxidative stress. The eye can suffer the effect of oxidative damage due to the etiopathogenesis of some pathological changes related to oxidative stress. This paper reviews the role of oxidative stress in the onset and progression of damage in different eye structures, the involvement of the antioxidant network in protecting and maintaining the homeostasis of this organ, and the potential assessment methodologies used in research and in some cases in clinical practice.
Collapse
Affiliation(s)
- Marcela P Cabrera
- Escuela de Graduados, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, P.O. Box 567, 5110566 Valdivia, Chile
| | | |
Collapse
|
5
|
Boddu SHS, Jwala J, Chowdhury MR, Mitra AK. In vitro evaluation of a targeted and sustained release system for retinoblastoma cells using Doxorubicin as a model drug. J Ocul Pharmacol Ther 2011; 26:459-68. [PMID: 20874666 DOI: 10.1089/jop.2010.0048] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
PURPOSE The objective of this study was to develop a novel folate receptor-targeted drug delivery system for retinoblastoma cells using doxorubicin (DOX) as a model drug. METHODS Biodegradable DOX-loaded poly(d,l-lactide-co-glycolide)-poly(ethylene glycol)-folate (PLGA-PEG-FOL) micelles (DOXM) were prepared with various solvents (dimethylsulfoxide, acetone, and dimethylformamide). The effects of solvents on entrapment efficiency, particle size, and polydispersity were examined. The effects of thermosensitive gel structure on the release of DOX from the DOXM were also studied. Qualitative and quantitative uptake studies of DOX and DOXM were carried out in Y-79 cell line. Cytotoxicity studies of DOXM were performed on Y-79 cells. RESULTS Based on size, polydispersity, and entrapment efficiency, dimethylformamide was found to be the most suitable solvent for the preparation of DOXM. Dispersion of DOXM in PLGA-PEG-PLGA gel sustained drug release for a period of 2 weeks. Uptake of DOX was ∼4 times higher with DOXM than DOX in Y-79 cells overexpressing folate receptors. This was further confirmed from the quantitative uptake studies. DOXM exhibited higher cytotoxicity in Y-79 cells when compared with pure DOX. CONCLUSION These polymeric micellar systems suspended in thermosensitive gels may provide sustained and targeted delivery of anticancer agents to retinoblastoma cells following intravitreal administration.
Collapse
Affiliation(s)
- Sai H S Boddu
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City , Kansas City, MO 64108-2718, USA
| | | | | | | |
Collapse
|
6
|
Werner L, Pandey SK, Izak AM, Hickman MS, LeBoyer RM, Mamalis N. Evaluation of the cataractogenic effect of viscoanesthetic solutions on the rabbit crystalline lens. J Cataract Refract Surg 2005; 31:1414-20. [PMID: 16105616 DOI: 10.1016/j.jcrs.2004.10.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2004] [Indexed: 11/26/2022]
Abstract
PURPOSE To evaluate the toxicity and cataractogenic effect of solutions combining sodium (Na) hyaluronate 1.0% and 1.5% with lidocaine 1.0% on the rabbit crystalline lens. The amount of pupil dilation provided by the addition of lidocaine to the Na hyaluronate solutions was also assessed. SETTING John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA. METHODS Five solutions were injected into the anterior chamber of 18 pigmented rabbits in a randomized manner by the same surgeon, the intraocular component of VisThesia (Na hyaluronate 1.5%/lidocaine 1.0%), the intraocular component of VisThesia Light (Na hyaluronate 1.0%/lidocaine 1.0%), Ophthalin Plus (Na hyaluronate 1.5%), and a balanced salt solution; and both eyes of 2 other rabbits were injected with nonpreserved aqueous lidocaine 1.0%. The pupil diameter of each eye was measured before injection, immediately after, and 1 and 5 minutes after injection. After a follow-up of 3 months with slitlamp examinations, the rabbits were killed, and their eyes were enucleated. The crystalline lenses were evaluated from a posterior or Miyake-Apple view, and the eyes were fixated in 10% formalin for histopathologic analyses. RESULTS Pupil diameter was significantly larger 1 and 5 minutes after injection in the VisThesia (P = .01 and P = .007) and VisThesia Light (P = .008 and P = .007) groups, whereas the differences were not significant in the Ophthalin Plus (P = .317 and P = .102) and balanced salt solution groups (P = .317 and P = .180). Fast and large pupillary dilation was observed in the aqueous lidocaine group, starting during the injection. No differences in the transparency of the natural lens and the red fundus reflex were noted during slitlamp examinations. Postmortem analyses from a posterior view also showed no differences in the transparency of the crystalline lens. The histopathologic appearance of the lens capsule, anterior and equatorial lens epithelial cells, and epithelial lens bow was comparable in the eyes, without signs of cell vacuolization or disruption. CONCLUSIONS Intracameral injection of the solutions used in this study caused no localized opacity or overall change in the transparency of the crystalline lenses as observed during clinical and postmortem examinations as well as histopathologic analyses of the enucleated rabbit eyes. Viscoanesthesia may have application in phakic intraocular lens implantation.
Collapse
Affiliation(s)
- Liliana Werner
- John A. Moran Eye Center, University of Utah, Salt Lake City, Utah 84132, USA.
| | | | | | | | | | | |
Collapse
|
7
|
Slaughter MR, Thakkar H, O'Brien PJ. Differential expression of the lenticular antioxidant system in laboratory animals: a determinant of species predilection to oxidative stress-induced ocular toxicity? Curr Eye Res 2003; 26:15-23. [PMID: 12789532 DOI: 10.1076/ceyr.26.1.15.14247] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
PURPOSE Various animal species have been used to study oxidative stress-induced cataractogenesis; however, given that differences in the expression of the lens antioxidant system may influence species susceptibility to oxidative stress, we compared and contrasted a broad spectrum of components of the lens antioxidant system in dog, rat, marmoset, and rabbit. METHODS Lenses collected from beagle dogs, Sprague-Dawley rats, marmosets, and New Zealand white rabbits were assayed for reduced glutathione (GSH), and activities of copper-zinc and manganese superoxide dismutase (CuZn-SOD; Mn-SOD), catalase (CAT), glutathione peroxidase (GPX), gamma-Glutamylcysteine synthetase (GCS), glutathione reductase (GR), glutathione-S-transferases (GST), and glucose-6-phosphate dehydrogenase (GPDH), and Trolox equivalent antioxidant capacity (TEAC). RESULTS Expression of the lens antioxidant system varied considerably between species. Marmoset lens contained the highest levels of GSH, its respective biosynthetic and recycling enzymes GCS and GR, and the associated H(2 )O(2)-dismutation enzyme GPX. Activities of both SOD isoforms were also highest in marmoset lens. However, activities of the xenobiotic-conjugating enzyme GST and NADPH-generating enzyme GPDH were relatively low. In contrast, dog lens had the lowest levels of GSH, GCS, GR, and Cu-Zn SOD (1/2, 1/2 and 1/33, and 1/63 that in marmoset) but highest levels of GST and GPDH. Rabbit lens contained the highest CAT activity, at up to 3.5-fold that for marmoset and rat. CONCLUSION These results demonstrate substantial variation in lens antioxidant systems between different laboratory animal species. Given that such variation may affect relative susceptibility to oxidative stress-mediated ocular toxicity, our findings may provide useful information when choosing different animal species for lens research.
Collapse
|