Abstract：
:Fibroblast growth factors play a key role in regulating lens epithelial cell proliferation and differentiation via an anteroposterior gradient that exists between the aqueous and vitreous humours. FGF-2 is the most important for lens epithelial cell proliferation and differentiation. It has been proposed that the presentation of FGF-2 to the lens epithelial cells involves the lens capsule as a source of matrix-bound FGF-2. Here we used immunogold labelling to measure the matrix-bound FGF-2 gradient on the inner surface of the lens capsule in flat-mounted preparations to visualize the FGF-2 available to lens epithelial cells. We also correlated FGF-2 levels with levels of its matrix-binding partner perlecan, a heparan sulphate proteoglycan (HSPG) and found the levels of both to be highest at the lens equator. These also coincided with increased levels of phosphorylated extracellular signal-regulated kinase 1 and 2 (pERK1/2) in lens epithelial cells that localised to condensed chromosomes of epithelial cells that were Ki-67 positive. The gradient of matrix-bound FGF-2 (anterior pole: 3.7 ± 1.3 particles/μm2; equator: 8.2 ± 1.9 particles/μm2; posterior pole: 4 ± 0.9 particles/μm2) and perlecan (anterior pole: 2.1 ± 0.4 particles/μm2; equator: 5 ± 2 particles/μm2; posterior pole: 1.9 ± 0.7 particles/μm2) available at the inner lens capsule surface was measured for the bovine lens. These data support the anteroposterior gradient hypothesis and provide the first measurement of the gradient for an important morphogen and its HSPG partner, perlecan, at the epithelial cell-lens capsule interface.
journal_name
Exp Eye Resjournal_title
Experimental eye researchauthors
Wu W,Tholozan FM,Goldberg MW,Bowen L,Wu J,Quinlan RAdoi
10.1016/j.exer.2013.12.004subject
Has Abstractpub_date
2014-03-01 00:00:00pages
10-4eissn
0014-4835issn
1096-0007pii
S0014-4835(13)00348-5journal_volume
120pub_type
杂志文章abstract：:The mass receptor potential of the excised, superfused retina of the bullfrog was studied. Photoreceptor responses were isolated by addition of sodium aspartate to the Ringer solutions. Responses of the cones were monitored independently from responses of the rods by employing a two-flash method of stimulation which t...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(84)90007-1
更新日期：1984-08-01 00:00:00
abstract：:[3H]-retinol binding to cellular retinol-binding protein (CRBP) increased more than five-fold in developing chicken corneal epithelium at 14 days of incubation, the time when the initial increase in corneal transparency occurs in the developing embryo. In contrast, [3H]-retinoic acid binding to cellular retinoic acid-...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(83)90026-x
更新日期：1983-11-01 00:00:00
abstract：:Several lines of evidence support the existence of a renin-angiotensin system (RAS) in the retina that is separated from the blood stream by the retinal pigment epithelium (RPE). Under physiological conditions, increased activity of intraretinal RAS regulates neuronal activity of the retina but patho-physiologically p...
journal_title：Experimental eye research
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doi：10.1016/j.exer.2019.107828
更新日期：2019-12-01 00:00:00
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journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(90)90150-s
更新日期：1990-10-01 00:00:00
abstract：:Herpes simplex virus type-1 (HSV-1) infection leads to impaired corneal sensation and, in severe cases, to corneal ulceration, melting and perforation. Here, we explore the potential therapeutic action of pigment epithelial-derived factor (PEDF) plus docosahexaenoic acid (DHA) on corneal inflammation and nerve regener...
journal_title：Experimental eye research
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更新日期：2017-08-01 00:00:00
abstract：:Multidrug resistance associated protein (MRP) is a major family of efflux transporters involved in drug efflux leading to drug resistance. The objective of this study was to explore physical barriers for ocular drug absorption and to verify if the role of efflux transporters. MRP-2 is a major homologue of MRP family a...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2006.08.015
更新日期：2007-01-01 00:00:00
abstract：:The Publisher regrets that this article is an accidental duplication of an article that has already been published, doi:10.1016/j.exer.2010.03.008. The duplicate article has therefore been withdrawn. ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2011.07.012
更新日期：2011-07-29 00:00:00
abstract：:Protein myristoylation occurs when the 14 carbon fatty acid, myristic acid, is covalently attached by amide linkage to a protein's N -terminal glycine by an N -terminal myristoyltransferase (NMT). A variation of this called heterogeneous acylation occurs in vivo only in retina when specific proteins are modified by my...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.2002.1189
更新日期：2002-07-01 00:00:00
abstract：:Diabetic retinopathy is a complication of diabetes and a leading cause of vision loss among working-age adults. To assess whether the Wistar rat with Streptozotocin (STZ)-induced diabetes is a suitable animal model of human proliferative diabetic retinopathy we evaluated the vascular changes to assess the diabetic ret...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2019.04.025
更新日期：2019-07-01 00:00:00
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journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1996.0116
更新日期：1996-09-01 00:00:00
abstract：:Collagen was isolated from bovine cornea and tested for reactivity towards platelets and IgG-coated polystyrene latex particles. The corneal collagen caused a dose- and temperature-dependent platelet aggregation in all human platelet-rich plasmas studied. As little as 0 . 31 micrograms of purified corneal collagen cou...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(83)90122-7
更新日期：1983-03-01 00:00:00
abstract：:Biochemical studies of acidic lens protein degrading activity in the bovine ciliary body were performed. The activity showed two peaks, Fractions A and B, on Sephadex G-75 column chromatography. Fraction A contained cathepsin D and thiol proteinase activities and was inhibited by pepstatin and leupeptin. Fraction B co...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(85)90150-2
更新日期：1985-03-01 00:00:00
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journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2015.05.001
更新日期：2015-07-01 00:00:00
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journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2016.10.012
更新日期：2016-12-01 00:00:00
abstract：:We have examined the possible expression of fibroblast growth factor in cultured cells derived from bovine lens epithelium and corneal endothelium. Lens epithelial, but not corneal endothelial, cells were found to express the acidic fibroblast growth factor (aFGF) gene, whereas both cell types express the gene encodin...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(88)80094-0
更新日期：1988-01-01 00:00:00
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journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2015.06.022
更新日期：2015-09-01 00:00:00
abstract：:In a previous investigation into the fate of fluorescently labelled antigen (Ag) injected into the anterior chamber (AC) of the rat eye, a large number of Ag+ cells were noted in the conventional and non-conventional aqueous humour outflow pathways together with the external limbus. The aim of this study was to invest...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2004.06.009
更新日期：2004-10-01 00:00:00
abstract：:Paired human lenses ranging from 2 to 96 yr old (n = 17) were harvested within 2 hr post-mortem and immersed in liquid nitrogen. Phosphorus containing metabolites from perchloric acid extracts were quantitated using phosphorus-31 nuclear magnetic resonance spectroscopy. Low-energy metabolites detected include the phos...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(91)90016-8
更新日期：1991-06-01 00:00:00
abstract：:To determine the effect of roscovitine, a potent antiviral in tissue culture administered intramuscularly to rabbits or by eye drops to mice for the treatment of herpetic keratitis this study was commenced.New Zealand white rabbits infected with McKrae strain herpesvirus (HSV-1) were treated twice a day with 10mg Rosc...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(03)00056-3
更新日期：2003-06-01 00:00:00
abstract：:In chickens, transient changes in choroidal thickness are found in conditions in which the eye is slowing its growth in response to visual episodes that prevent excessive elongation. To test the hypothesis that the choroidal and ocular growth responses are linked, we used a variety of "brief daily" stimuli known to am...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2007.01.017
更新日期：2007-05-01 00:00:00
abstract：:This study was performed to further characterize expression and function of the Fas/Fas ligand system in the cornea. Specifically, these experiments examined (1) the effect of genetic inactivation of Fas or Fas ligand genes on keratocyte apoptosis in response to corneal epithelial wounding, (2) whether cultured human ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1997.0371
更新日期：1997-10-01 00:00:00
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journal_title：Experimental eye research
pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：1995-12-01 00:00:00
abstract：:The objective of this study was to compare the efficiency of various formulations in maximizing the ratio of ocular to systemic absorption of topically applied timolol in the pigmented rabbit. Formulations of various pHs, tonicities, and concentrations of benzalkonium chloride, EDTA, poly(vinyl alcohol), poly(vinylpyr...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(92)90030-v
更新日期：1992-05-01 00:00:00
abstract：:The presence of the alpha(1)-adrenoceptor subtypes in various parts of the pig and rabbit eyes was investigated using [(3)H]-prazosin radioligand binding. The characterization of the subtypes was achieved by performing competition experiments with various subtype selective drugs. In the pig retina, both alpha(1A)- and...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1999.0753
更新日期：2000-01-01 00:00:00
abstract：:Limbal microvascular endothelial cells (L-MVEC) contribute to formation of the corneal-limbal stem cell niche and to neovascularization of diseased and injuries corneas. Nevertheless, despite these important roles in corneal health and disease, few attempts have been made to isolate L-MVEC with the view to studying th...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2014.12.008
更新日期：2015-02-01 00:00:00
abstract：:Intraocular pressure (IOP) is an important risk factor for glaucoma, and the response of the ONH and surrounding tissues to elevated IOP are often investigated to better understand pathophysiology. In vivo structure including that of the optic nerve head (ONH) and surrounding tissue of the eye are often assessed using...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2018.01.025
更新日期：2018-04-01 00:00:00
abstract：:Lens epithelium-derived growth factor (LEDGF) has been shown to enhance survival of lens epithelial cells (LECs) against stress. The objectives of these studies are to determine how LEDGF controls PKC gamma activity in normal LECs: how this control of PKC gamma regulates the phosphorylation of Connexin 43, the inhibit...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(03)00049-6
更新日期：2003-05-01 00:00:00
abstract：:Use has been made of the specific interactions between monoclonal antibodies and the alpha A or alpha B subunits of alpha-crystallin to devise methods for the purification of the intact protein or its subunits. alpha A and alpha B subunits were separated by affinity chromatography on an immobilized monoclonal antibody...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(88)80007-1
更新日期：1988-04-01 00:00:00
abstract：:Previous studies have shown that the inhibition of Rho kinase is involved in the regulation of outflow facility in the live rabbit eye and the enucleated porcine eye. However, it is unknown whether the Rho kinase inhibition will do the same in non-human primates. To determine if the Rho kinase inhibitor Y-27632 will r...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2004.09.002
更新日期：2005-02-01 00:00:00
abstract：:The anterior avian cornea possesses several distinct cellular and extracellular regions including the epithelial basal lamina, Bowman's layer and the interfacial matrix that separates Bowman's layer from the stroma. These unique regions differ biochemically, physically and morphologically but all contain type XII coll...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.2002.2058
更新日期：2002-12-01 00:00:00
