Abstract：
PURPOSE:Oxidative stress and cellular senescence are known to contribute to the development of AMD; however, the mechanism is not fully understood. This study investigated the role of TGF-β-activated kinase 1 (TAK1) in the senescence of RPE cells as a model for the development of dry AMD. METHODS:Cultured human RPE cells were treated with the TAK1 inhibitor 5Z-7-oxozeaenol for 1 hour, and then treated with 200 μM hydrogen peroxide for 1 hour. Human RPE cells that were not pretreated with TAK1 inhibitor for 1 hour served as controls. Senescence-associated β-galactosidase (SA-β-gal) activity was detected by histochemistry, and p53 expression by immunoblotting. Cell-cycle and apoptosis rate in RPE cells were determined by flow cytometry. RESULTS:The TAK1 expression in human RPE cells was high and was altered on oxidative stress. Transforming growth factor-β-activated kinase 1 inhibition led to reduction in cell proliferation, cell-cycle arrest at G0/G1, and increased SA-β-gal expression, all known to be features of cell senescence. Exposure of cells to oxidative stress combined with inhibition of TAK1 activity decreased the expression of apoptotic proteins, such as p53, and promoted cellular senescence. Aberrant TAK1 activity in RPE cells triggered their secretion of factors that induced hypertrophy and fibrotic changes in neighboring cells. CONCLUSIONS:The in vitro evidence indicated a role for TAK1 in the onset of senescence in RPE cells. The data shown hereby demonstrated that TAK1 activity is essential for maintaining normal function of RPE cells. Elucidation of its role in mechanisms underlying RPE cellular senescence induction may potentiate development of powerful tools for halting the development of dry AMD.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Dvashi Z,Green Y,Pollack Adoi
10.1167/iovs.14-14349subject
Has Abstractpub_date
2014-08-12 00:00:00pages
5679-86issue
9eissn
0146-0404issn
1552-5783pii
iovs.14-14349journal_volume
55pub_type
杂志文章abstract：PURPOSE:Human adenovirus species D type 19 (HAdV-D19) has been associated with epidemic keratoconjunctivitis (EKC), a highly inflammatory infection of the ocular surface. Confusion exists regarding the origins of HAdV-D19. The prototype virus (HAdV-D19p) does not cause EKC, while a virus identified later with the ident...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.12-9656
更新日期：2012-05-14 00:00:00
abstract：Purpose:To evaluate spontaneous and evoked ocular sensory responses in rats after denervation of the lacrimal gland, as well as protein changes in tears that may mediate functional changes. Methods:Sprague-Dawley rats served as subjects. The left lacrimal gland was partially denervated with saporin toxin conjugated to...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.18-25267
更新日期：2018-10-01 00:00:00
abstract：PURPOSE:To determine whether a novel peroxynitrite-based photosensitizer S-nitrosoglutathione (GSNO) can produce specific in vitro light-induced cell death of both standard animal lung and human Tenon's capsule (TC) fibroblasts and to compare this effect with that produced by the established photodynamic porphyrin prec...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2000-03-01 00:00:00
abstract：PURPOSE:To determine the effect of dilute alcohol on human corneal epithelial cellular morphology and viability. Dilute alcohol is used for epithelial removal during photorefractive keratectomy (PRK) and laser subepithelial keratomileusis (LASEK). METHODS:Corneal epithelial sheets harvested from human eyes after alcoh...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2002-08-01 00:00:00
abstract：PURPOSE:Equine recurrent uveitis (ERU) is an incurable disease affecting the inner eye that leads to blindness, through activated T cells that pass the blood-retinal barrier and destroy the retina. Serum markers are a desirable choice for monitoring development of disease, as serum is easy accessible and the markers co...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.09-4094
更新日期：2010-01-01 00:00:00
abstract：Purpose:To investigate the relationship between lens power and age as well as the relationship between lens power and axial length (AL) in Chinese children and adolescents. Methods:The participants underwent a comprehensive ophthalmic examination that included AL, cycloplegic refraction, and Pentacam measurements. The...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.17-22639
更新日期：2017-11-01 00:00:00
abstract：PURPOSE:Fractal dimension of retinal vasculature is a global summary measure of retinal vascular network pattern and geometry. This study was conducted to examine the effect of variations in image color, brightness, focus, contrast, and format on the measurement of retinal vascular fractal dimension. METHODS:A set of ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.09-4129
更新日期：2010-11-01 00:00:00
abstract：Purpose:To validate the prediction accuracy of variational Bayes linear regression (VBLR) with two datasets external to the training dataset. Method:The training dataset consisted of 7268 eyes of 4278 subjects from the University of Tokyo Hospital. The Japanese Archive of Multicentral Databases in Glaucoma (JAMDIG) da...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.17-22907
更新日期：2018-04-01 00:00:00
abstract：:Gamma-interferon (G-IFN) exhibits antiproliferative effects, inhibits collagen synthesis by fibroblasts, and may help to regulate the turnover of fibrous tissue. Fibroblasts from Tenon's capsule are cellular components that contribute to unsuccessful glaucoma filtration surgery. Therefore, the authors studied the effe...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1991-09-01 00:00:00
abstract：PURPOSE:To compare three microkeratome-assisted techniques for the preparation of ultrathin (UT) grafts for Descemet stripping automated endothelial keratoplasty. METHODS:After dissection with a 300-μm microkeratome head in 40 donor tissues, a second cut was performed with a 130-μm head either after manual stromal hyd...
journal_title：Investigative ophthalmology & visual science
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更新日期：2012-01-31 00:00:00
abstract：Purpose:To analyze the anti-inflammatory and antioxidative effects of Camellia japonica (CJ) on human corneal epithelial (HCE) cells and its therapeutic effects in a mouse model of experimental dry eye (EDE). Methods:Camellia japonica extracts of varying concentrations (0.001%, 0.01%, and 0.1%) were used to treat HCE ...
journal_title：Investigative ophthalmology & visual science
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更新日期：2017-02-01 00:00:00
abstract：PURPOSE:To assess visual acuity recovery times and cone photopigment regeneration kinetics after a bleach in the fovea of patients with dominant retinitis pigmentosa due to rhodopsin mutations. METHODS:The authors measured acuity recovery times by computerized photostress testing in 13 patients with dominant retinitis...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
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journal_title：Investigative ophthalmology & visual science
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doi：10.1167/iovs.12-10957
更新日期：2013-04-17 00:00:00
abstract：PURPOSE:To determine the relationship between changes in contrast sensitivity, if any, after glaucoma therapy and the test-retest reliability of the CSV-1000 contrast sensitivity test. METHODS:Patients with primary open angle glaucoma (N = 16) were retrospectively evaluated to determine changes in visual function, as ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1994-08-01 00:00:00
abstract：PURPOSE:One of the methods used in macular translocation (MT) surgery for subfoveal neovascularization is to create a temporary total retinal detachment followed by a 360 degrees retinotomy. The whole retina is then shifted from the original surface of the retinal pigment epithelium (RPE), resulting in an unusual retin...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2002-02-01 00:00:00
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journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.61.12.12
更新日期：2020-10-01 00:00:00
abstract：:The vascular endothelial growth factor or factors (VGF) and the cytotoxic component(s) in fetal calf retinal extract, vitreous, and serum were investigated. A new quantitative method of measuring the cell growth stimulatory activity and cytotoxicity was used. Results obtained in this study suggest that the VGF may be ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1982-09-01 00:00:00
abstract：PURPOSE:To develop an eye-motion-tracking optical coherence tomographic (OCT) method and assess its effect on image registration and nerve fiber layer (NFL) thickness measurement reproducibility. METHODS:A system capable of tracking common fundus features based on reflectance changes was integrated into a commercial O...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.05-0748
更新日期：2006-03-01 00:00:00
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journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-12376
更新日期：2013-09-09 00:00:00
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journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1990-04-01 00:00:00
abstract：PURPOSE:The purpose of this study was to determine whether a better IOP reduction can be observed in conscious, normotensive monkeys treated with ONO-9054, a novel dual EP3 and FP receptor agonist, compared with prostaglandin F2α analogs. METHODS:The binding affinities and agonistic activities of ONO-AG-367, a carboxy...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.14-16181
更新日期：2015-04-01 00:00:00
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journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：:Monoclonal antibody to HSV glycoprotein D was derivatized with palmitic acid and incorporated into liposomes. These immunoliposomes bound specifically to intact mouse corneas infected with HSV-1 in vitro. Furthermore, in yield reduction assays, anti-gD immunoliposomes loaded with acyclovir proved far more effective at...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1987-03-01 00:00:00
abstract：PURPOSE:To further understand alpha2 receptor signaling in the retina and the mechanisms that mediate ocular beneficial effects of brimonidine (an alpha2 agonist) and nimodipine (an L-type Ca(2+) channel blocker). METHODS:The authors used in situ retinal ganglion cells (RGCs) in the isolated rat retina to characterize...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.09-4613
更新日期：2010-08-01 00:00:00
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journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.04-0250
更新日期：2004-09-01 00:00:00
abstract：:The secretion of the aqueous humor has been proposed to occur as the result of active Na+ transport by a ouabain-sensitive Na-K ATPase. We have examined the localization of this enzyme in the epithelium of rabbit ciliary body pars plicata using [3H]ouabain autoradiography. Single ciliary processes were isolated and in...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1988-04-01 00:00:00
abstract：PURPOSE:To explore the role in the eye of tenomodulin (TeM), a chondromodulin (ChM)-I-related glycoprotein, the expression, localization, and antiangiogenic potential of TeM were investigated. METHODS:Gene expression and protein localization of TeM in mouse eyes were examined by Northern blot analysis, in situ hybridi...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.02-0664
更新日期：2003-05-01 00:00:00
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journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2000-11-01 00:00:00
abstract：:Topical application of Prostaglandin F2 alpha (PGF2 alpha) to the eye reduces intraocular pressure (IOP) in all mammalian species studied thus far, including humans. The L-isopropylester derivative is currently the one most commonly used in experimental and clinical studies. Dose-response relationships were determined...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1991-03-01 00:00:00
abstract：Purpose:Using quantitative fundus autofluorescence (qAF), we analyzed short-wavelength autofluorescent (SW-AF) rings in RP. Methods:Short-wavelength autofluorescent images (486 nm excitation) of 40 patients with RP (69 eyes) were acquired with a confocal scanning laser ophthalmoscope equipped with an internal fluoresc...
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
