Abstract:
Purpose:The purpose of this study was to evaluate the antiangiogenic effect of gold nanoparticles (AuNPs) on experimental choroidal neovascularization (CNV) in mice. Methods:Choroidal neovascularization was induced by rupturing the Bruch's membrane using laser photocoagulation in C57BL/6 mice. The following day, intravitreal injections of AuNPs were administered. The control group received PBS injection of the same volume. Two weeks after laser injury, CNV lesions were evaluated by examination of choroidal flat-mounts using fluorescein-labeled dextran and immunofluorescence staining with isolectin B4. The effects of AuNPs on endothelial cell tube formation, proliferation, and cytotoxicity were evaluated using human umbilical vein endothelial cells (HUVECs) or human RPE cells. The activity of extracellular signal-regulated kinase (ERK)1/2, protein kinase B (Akt), and focal adhesion kinase (FAK) signaling pathways was also analyzed. Results:The AuNPs reduced the extent of CNV. Mice treated with intravitreal AuNPs injections exhibited a 67.9% reduction in the extent of CNV lesions compared with the control group (P < 0.001). The size of the isolectin B4-labeled area was also significantly smaller in AuNP-treated groups compared with the control group (P < 0.001). Gold nanoparticles decreased vascular endothelial growth factor-induced HUVEC tube formation and proliferation but showed no RPE cell toxicity with the treatment doses administered. The phosphorylation of ERK1/2, Akt, and FAK in HUVECs was suppressed by AuNPs. Conclusions:Gold nanoparticles can inhibit laser-induced CNV in mice and may have an indication for the treatment of CNV.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Roh YJ,Rho CR,Cho WK,Kang Sdoi
10.1167/iovs.16-19754subject
Has Abstractpub_date
2016-12-01 00:00:00pages
6561-6567issue
15eissn
0146-0404issn
1552-5783pii
2589962journal_volume
57pub_type
杂志文章abstract:Purpose:Adult central nervous system (CNS) neurons are unable to regenerate their axons after injury. Krüppel-like transcription factor (KLF) family members regulate intrinsic axon growth ability in vitro and in vivo, but mechanisms downstream of these transcription factors are not known. Methods:Purified retinal gang...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.17-23319
更新日期:2018-06-01 00:00:00
abstract::Bovine corneal endothelial cells in culture synthesize predominantly type III collagen, unlike rabbit corneal endothelial cultures which synthesize type IV collagen. In an attempt to document whether this type III collagen synthesis by bovine cells is a tissue culture-specific phenomenon, collagens synthesized by orga...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1988-02-01 00:00:00
abstract::PURPOSE. To investigate the effects and possible mechanisms of rat bone marrow mesenchymal stem cell (BMSC) transplantation on the light-damaged retinal structure and the apoptosis of photoreceptors. METHODS. DAPI-labeled BMSCs were transplanted into the subretinal space of light-damaged Sprague-Dawley rats 10 days af...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.08-3314
更新日期:2010-07-01 00:00:00
abstract:PURPOSE:Human leukocyte antigen (HLA) polymorphisms have been associated with the development of autoimmune diseases. In uveal melanoma, a high expression of HLA classes I and II, and infiltration with lymphocytes and macrophages are associated with a bad prognosis. Inflammation has an important role in this malignancy...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-8901
更新日期:2012-05-04 00:00:00
abstract:PURPOSE:To investigate the relationship between long-term glycemic control and photopic negative response (PhNR) changes in the blue flash ERG in adolescents with type 1 diabetes (T1D) without diabetic retinopathy (DR). METHODS:After light adaptation, ERG responses to 1.60 cd·s/m(2) blue (420 nm) flashes (blue flash E...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-8263
更新日期:2012-02-13 00:00:00
abstract::The definition and diagnostic criteria of dry eye disease (DED) proposed by the Japan Dry Eye Society and other countries are reviewed. The first definition and criteria of DED in Japan were proposed in 1995. In that report, DED was considered a disease of tears, which subsequently damaged ocular epithelia. The presen...
journal_title:Investigative ophthalmology & visual science
pub_type: 历史文章,杂志文章,评审
doi:10.1167/iovs.17-23475
更新日期:2018-11-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-0582
更新日期:2007-10-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-0231
更新日期:2007-10-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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更新日期:2012-12-13 00:00:00
abstract:PURPOSE:To determine the usefulness of polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in the identification and speciation of bacteria causing endophthalmitis. METHODS:PCR-RFLP was performed on 53 strains of 14 bacterial species (eight Gram positive and five Gram negative) collected from...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-05-01 00:00:00
abstract::To determine whether glaucoma selectively injures a particular size of optic nerve fiber (and its cell body), we induced chronic experimental glaucoma in one eye each of ten monkeys. With automated image analysis, the number and diameter of optic nerve fibers were compared between each glaucomatous eye and its normal ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1987-06-01 00:00:00
abstract:PURPOSE:To establish, using adaptive optics scanning laser ophthalmoscopy (AOSLO), that the retinal parafoveal capillary network is altered before the onset of diabetic retinopathy in adult patients with type 2 diabetes. METHODS:AOSLO videos were acquired in the parafoveal region of one eye from control subjects and f...
journal_title:Investigative ophthalmology & visual science
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doi:10.1167/iovs.11-8481
更新日期:2011-11-29 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0567
更新日期:2003-01-01 00:00:00
abstract:PURPOSE:The role of macular pigment (MP) in age-related maculopathy (ARM) is still not clearly understood. Recent studies have reported on variations in the spatial distribution of MP optical density (MPOD) including a secondary peak ("ring") in the slope of the MPOD profile. The authors investigated in a cross-section...
journal_title:Investigative ophthalmology & visual science
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更新日期:2011-10-11 00:00:00
abstract::Reduced quality of life and financial burden due to visual impairment and blindness begin to increase dramatically when individuals reach the age of 40. The major causes of age-related vision loss can be traced to changes to the structure and function of the lens, one of the tissues responsible for focusing light on t...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,评审
doi:10.1167/iovs.13-12940
更新日期:2013-12-13 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.16-21302
更新日期:2017-03-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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更新日期:2019-10-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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doi:10.1167/iovs.13-12075
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abstract:PURPOSE:A prior study showed that cholinergic agonists activate phospholipase D (PLD). The purpose of this study was to determine whether cholinergic agonists use the PLD pathway to alter protein secretion and to identify the molecular signaling components of this pathway in rat lacrimal gland acini. METHODS:Rat lacri...
journal_title:Investigative ophthalmology & visual science
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更新日期:2011-04-06 00:00:00
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journal_title:Investigative ophthalmology & visual science
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doi:
更新日期:2000-06-01 00:00:00
abstract:PURPOSE:CD40 antigen is a membrane receptor that plays a role in the regulation of immune reactions. The expressions of CD40 and CD40 ligand (CD40L) were investigated ex vivo and in vitro in conjunctival epithelial cells, in correlation with HLA DR class H antigen, previously shown to be upregulated in conjunctival inf...
journal_title:Investigative ophthalmology & visual science
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doi:
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:Retinal injury induces Müller cell dedifferentiation by activating extracellular signal-regulated kinase (ERK) signaling. Stimulation of α2-adrenergic receptors protects against injury but also activates ERK in Müller cells. The purpose of this work was to study the effect of α2-adrenergic signaling on injury-i...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
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更新日期:2015-09-01 00:00:00
abstract:Purpose:Although normal function of the lacrimal gland is essential for vision (and thus for human well-being), the lacrimal gland remains rather poorly understood at a molecular level. The purpose of this study was to identify new genes and signaling cascades involved in lacrimal gland development. Methods:To identif...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
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更新日期:2017-02-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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doi:10.1167/iovs.08-1869
更新日期:2008-11-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
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更新日期:2017-04-01 00:00:00
abstract::Previous studies have shown that aqueous humor of calf and human eyes contains about 25 microM hydrogen peroxide. We have studied the removal of hydrogen peroxide by the outflow pathway of intact, freshly enucleated, calf eyes. Eyes were immersed under silicone oil that had a density greater than water and medium cont...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1988-06-01 00:00:00
abstract:PURPOSE:To characterize retinal functional consequences of elevated intraocular pressure (IOP) in a rat model of experimental glaucoma. METHODS:Unilateral elevation of IOP was produced by hypertonic saline injection into an episcleral vein in 20 adult male Brown-Norway rats. IOP was measured in both eyes of awake anim...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
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更新日期:2004-06-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
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更新日期:2004-01-01 00:00:00
abstract:PURPOSE:To determine some of the mechanisms by which substance P (SP) induces contraction in the isolated rat iris. METHODS:Rings of rat iris were mounted in a 5-ml organ chamber containing Krebs solution at 37 degrees C under basal tension of 75 mg, and isometric tension was recorded. RESULTS:Substance P produced gr...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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更新日期:2011-08-22 00:00:00