Abstract：
:In addition to its role as an inhibitor of urokinase plasminogen activator (uPA), plasminogen activator inhibitor-1 (PAI-1) is hypothesized to regulate epithelial cell adhesion and migration. We have previously reported that PAI-1 may be an important regulatory factor of the uPA system in cornea. The purpose of this study was to extend those observations by determining the effect of exogenous PAI-1 on the migration and adhesion of human corneal epithelial cells (HCEC) in vitro. The expression of PAI-1 in non-transformed early passage HCEC was confirmed by immunofluorescence microscopy and Western blot analysis. Colorimetric assays coupled with function-inhibiting antibody studies using the matrix assembled in situ by cultured cells demonstrate that immobilized PAI-1 serves as an efficient substrate for HCEC adhesion. HCEC attachment to PAI-1 is comparable to that of laminin-10, a known strong adhesion protein for epithelial cells. In addition to serving as an adhesion substrate, PAI-1 also functions as a chemotactic agent for corneal epithelium. Additionally it promotes the random migration of HCEC, from an initial cell cluster, along a culture substrate. Our results in corneal epithelium are consistent with reports from other investigators showing that PAI-1 facilitates both epithelial adhesion and migration. From our studies we conclude that PAI-1 may play a dual role in corneal wound healing. Initially PAI-1 may function to stimulate migration and facilitate the reepithelialization of the wound bed. Post-reepithelization, PAI-1 may ensure corneal epithelial cell adhesion to matrix to promote successful wound healing.
journal_name
Exp Eye Resjournal_title
Experimental eye researchauthors
Wang Z,Sosne G,Kurpakus-Wheater Mdoi
10.1016/j.exer.2004.06.006keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
1-8issue
1eissn
0014-4835issn
1096-0007pii
S0014483504001617journal_volume
80pub_type
杂志文章abstract：:This study was conducted to evaluate the impact of varying scleral material properties on the biomechanical response of the cornea under air-puff induced deformation. Twenty pairs of human donor eyes were obtained for this study. One eye from each pair had its sclera stiffened using 4% glutaraldehyde, while the fellow...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2019.107904
更新日期：2020-02-01 00:00:00
abstract：:Photoreceptor outer segments (OS) in the vertebrate retina undergo a process of continual renewal involving shedding of disc membranes that are cleared by phagocytic uptake into the retinal pigment epithelium (RPE). In dystrophic Royal College of Surgeons (RCS) rats, OS phagocytosis is blocked by a mutation in the gen...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2015.08.006
更新日期：2015-11-01 00:00:00
abstract：:There has been a drive to develop new cell based therapies to treat corneal blindness, one of the most common causes of blindness worldwide. Mechanical and physical cues are known to regulate the behavior of many cell types, however studies examining these effects on corneal epithelial cells have been limited in numbe...
journal_title：Experimental eye research
pub_type： 杂志文章,评审
doi：10.1016/j.exer.2018.08.001
更新日期：2018-12-01 00:00:00
abstract：:Exposure to hyposmotic solution causes release of ATP from lens cells via hemichannels. Because hemichannel opening feasibly could swamp the cells with calcium, we carried out studies to measure the magnitude of the increase in cytoplasmic calcium concentration caused by hemichannel opening. In studies on porcine lens...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2015.01.012
更新日期：2015-03-01 00:00:00
abstract：:Keratoconus (KC) is a progressive, early onset, and often bilateral eye condition, in which the cornea gradually weakens and bulges out, and in advanced cases may eventually become cone-shaped. The available evidence suggests that it is a multifactorial disease with environmental and genetic contributions. Matrix Meta...
journal_title：Experimental eye research
pub_type： 杂志文章,评审
doi：10.1016/j.exer.2019.03.016
更新日期：2019-05-01 00:00:00
abstract：:The Royal College of Surgeons (RCS) rat is an established animal model of retinitis pigmentosa, a family of inherited retinal diseases which starts with loss of peripheral vision and progresses to eventual blindness. Blood flow (BF), an important physiological parameter, is intricately coupled to metabolic function un...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2012.06.006
更新日期：2012-08-01 00:00:00
abstract：:This study demonstrates post-translational arginylation of bovine serum albumin and endogenous lens proteins by bovine lens arginyl-tRNA:protein transferase. This reaction has been proposed to be the first step in marking specific proteins for degradation by the non-lysosomal, ATP-dependent, ubiquitin-mediated proteol...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(91)90220-9
更新日期：1991-11-01 00:00:00
abstract：:An extraneous exon-skipping mRNA encodes an altered form of a light-absorbing opsin in human retina and pigment epithelium (RPE). The predicted protein variant differs from full-length RPE-retinal G protein-coupled receptor (RGR) by having an in-frame deletion of exon 6, which contains the entire sixth transmembrane d...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2005.11.013
更新日期：2006-07-01 00:00:00
abstract：:Retinal pigment epithelial cells (RPEs) are thought to be one of the main components of fibrous membrane observed in eyes with proliferative vitreo-retinopathy. We investigated the signalling mechanisms of TGF-beta2-dependent collagen gel contraction by RPEs. An in vitro type I collagen gel contraction assay was perfo...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2005.09.024
更新日期：2006-05-01 00:00:00
abstract：:Mice are now routinely utilized in studies of aqueous humor outflow dynamics. In particular, conventional aqueous outflow facility (C) is routinely measured via perfusion of the aqueous chamber by a number of laboratories. However, in mouse eyes perfused ex-vivo, values for C are variable depending upon whether the pe...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2017.08.011
更新日期：2017-11-01 00:00:00
abstract：:Colonization by Staphylococcus aureus (S. aureus) has been implicated in many infectious and wound healing disorders. This study was performed to characterize the pathogenic role of S. aureus alpha-hemolysin (alpha-toxin) in corneal epithelial wound healing and infectious keratitis in the setting of a corneal wound. T...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2019.02.019
更新日期：2019-04-01 00:00:00
abstract：:Retinal ischemia/reperfusion (IR) injury causes profound tissue damage, especially retinal ganglion cell death. The aims of the study were twofold: (1) to investigate the benefits of epigallocatechin-3-gallate (EGCG), the major catechin found in tea, after IR challenge, and (2) to elucidate the mechanism of EGCG inhib...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2008.01.008
更新日期：2008-04-01 00:00:00
abstract：:The hyaluronan content during wound healing following excimer laser photoablation was investigated. Rabbit corneas were photoablated (Summit Omnimed, 193 nm, 5 mm diameter, 50 microns and 100 microns depth). Central optical zones of photoablated and contralateral corneas were removed 7, 30 and 90 days after surgery. C...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1996.0212
更新日期：1997-03-01 00:00:00
abstract：:Müller cells can completely repair retinal injury by acting as endogenous stem/progenitor cells in lower-order vertebrates. However, a safe and effective approach to activate progenitor potential of retinal Müller cells in higher-order vertebrates, which rarely re-enter the cell cycle, is a bottleneck problem. In the ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2015.01.008
更新日期：2015-03-01 00:00:00
abstract：:When aqueous humour outflow resistance is measured by two-level constant pressure perfusion in non-human primate eyes, a progressive decrease in outflow resistance, known as the 'washout effect' occurs with time. The effect of age on total outflow resistance washout (the reciprocal of outflow facility (OF)) was determ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2005.04.010
更新日期：2005-12-01 00:00:00
abstract：:A lateral potential drop along the outer surface of the cornea could be measured at the edge of wounds made in the corneal epithelium of the isolated bovine eye when the cornea was covered by simulated tear film of modified Hanks' solution. These lateral fields (LFs) had an average magnitude of 42 +/- 1.4 mV mm-1 in t...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(92)90164-n
更新日期：1992-06-01 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：:The purpose of this study was to evaluate the composition of ghost vessels and the newly identified intravitreal structures type 1 and 2 (IVS-1 and 2) observed in the rabbit vitreous body. Rabbit eyes (n = 10, 0.5- approximately 36 months of age) were fixed and embedded in plastic. Post-embedding immuno transmission e...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.2000.0865
更新日期：2000-08-01 00:00:00
abstract：:The purpose of our study was to establish a system for culturing normal human conjunctival epithelial (NHCE) cells under serum-free culture conditions without compromising their ability to differentiate into a mucous epithelium. To this end, small pieces of normal conjunctiva were biopsied from patients undergoing cat...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2007.04.005
更新日期：2007-08-01 00:00:00
abstract：:The purpose of this study was to investigate the impact of different diffusion times of mitomycin-C (MMC) on the intrascleral concentration vs depth profile of MMC in an experimental model. Scleral quadrants of eight human donor eyes were exposed to sponges soaked with MMC for an application time of 1 min. After irrig...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.2000.0901
更新日期：2000-11-01 00:00:00
abstract：:All aqueous humor draining through the conventional outflow pathway must cross the endothelium of Schlemm's canal (SC), likely by passing through micron-sized transendothelial pores. SC pores are non-uniformly distributed along the inner wall endothelium, but it is unclear how the distribution of pores relates to the ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2014.11.008
更新日期：2015-01-01 00:00:00
abstract：:The purpose of the current study was to localize the lens membrane protein, MIP 26, in nuclear fiber cells from different regions of aged normal and age-related cataractous human lenses. Adult, juvenile, fetal and embryonic nuclear regions in aged normal and age-related nuclear cataractous lenses were morphologically ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1998.0579
更新日期：1999-01-01 00:00:00
abstract：:Peroxisomes were localized in the head of wild-type and mutant strains of Drosophila melanogaster by use of a cytochemical method for the demonstration of D-amino acid oxidase activity. With similar techniques we had found previously that vertebrate photoreceptors have few, if any, bodies with cytochemically demonstra...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(90)90092-9
更新日期：1990-11-01 00:00:00
abstract：:Keratoconus is a debilitating corneal thinning disease that principally develops in the second and third decades of life. Our group previously developed a novel approach to studying keratoconus, based on the observation that there is a gradient of damage across the keratoconic cone. We identified a number of cellular ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(03)00148-9
更新日期：2003-10-01 00:00:00
abstract：:The effects of metabolic inhibitors on the apical and basal membrane potentials were studied in the isolated retinal pigment epithelium of the lizard Gekko gekko. Adding dinitrophenol or cyanide or cooling the tissue to 15 degrees C first depolarized the apical membrane and then hyperpolarized the basal membrane. The ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(90)90015-m
更新日期：1990-01-01 00:00:00
abstract：:This study was performed to determine whether cells in the posterior stroma undergo apoptosis in response to endothelial cell injury and to determine whether basement membrane component nidogen-1 was present in the cornea. New Zealand White rabbits had an olive tip cannula inserted into the anterior chamber to mechani...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2018.03.025
更新日期：2018-07-01 00:00:00
abstract：:The lipid composition of retinal pigment epithelial cells was determined for normal cells which have full phagocytic ability and for a genetic variant with impaired phagocytic function. Retinal pigment epithelial cells from 9-14-day-old congenic strains of normal (RCS-rdy+) and dystrophic (RCS-rdy/rdy) rats were separ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(86)80006-9
更新日期：1986-11-01 00:00:00
abstract：:This study was conducted to compare the effects of two anti-VEGF-A drugs, Ranibizumab and Aflibercept, on the expression and secretion of VEGFs family members, and on their influence in proliferation and migration of endothelial cells (HECV) in vitro. HECV cells were exposed 24 h (T1), 4 days (T2) and 6 days (T3) to R...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2015.12.014
更新日期：2016-05-01 00:00:00
abstract：:Eleven monoclonal antibodies against different segments of bovine rhodopsin were used with immunogold-dextran markers to label Lowicryl thin sections of bovine and frog retinal photoreceptor cells for visualization by transmission electron microscopy. Antibodies against the C-terminus, F1-F2 loop and N-terminus of rho...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(86)90017-5
更新日期：1986-01-01 00:00:00
abstract：:Proliferative diabetic retinopathy (PDR) is characterized by intraocular formation of fibroglial vascularized tissue by active vasoproliferative mechanisms. Using immunocytochemistry, we have studied changes in the distribution pattern of fibronectin (FN), laminin (LN), vitronectin (VN) and their receptors in the newl...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(05)80079-x
更新日期：1995-01-01 00:00:00
