Microtubule disruption leads to cellular contraction in human trabecular meshwork cells.

Abstract:

PURPOSE:To determine whether microtubule- and actin-altering drugs, which have been shown to increase aqueous humor outflow, cause cellular contraction in human trabecular meshwork (HTM) cells. METHODS:HTM cells were plated in culture dishes containing a polymerized deformable silicone substrate. After 48 hours, the dishes were placed on an inverted microscope and treated with ethacrynic acid, colchicine, vinblastine, cytochalasin B, or 1-(5-isoquinolinylsulfonyl)-2-methylpiperazine (H-7) and then recorded on videotape for 15 minutes. An increase in silicone substrate wrinkle size and/or number indicated a contraction. Sham controls were used. RESULTS:Cellular contraction was observed with ethacrynic acid, colchicine, and vinblastine in the 10(-5) to 10(-4) M dosage range. Pretreatment with H-7 blocked these effects. Cytochalasin B did not produce cellular contraction. CONCLUSIONS:Microtubule disruption causes cellular contraction in HTM cells, and this effect depends on an intact actin cytoskeleton network. Contraction of trabecular meshwork cells in response to various stimuli is an attractive hypothesis for possible homeostatic mechanisms in the outflow pathway, and this may serve as a focus for novel glaucoma drug development.

authors

Gills JP,Roberts BC,Epstein DL

subject

Has Abstract

pub_date

1998-03-01 00:00:00

pages

653-8

issue

3

eissn

0146-0404

issn

1552-5783

journal_volume

39

pub_type

杂志文章
  • Rapid upregulation of fibroblast growth factor receptor 1 (flg) by rat photoreceptor cells after injury.

    abstract:PURPOSE:To determine the mechanism by which basic fibroblast growth factor (bFGF) exerts its neuroprotective effects on degenerating or injured photoreceptors. METHODS:Confocal immunofluorescence microscopy was used to identify sites of bFGF and FGF receptor 1 (FGFR1) expression after focal injury or experimental reti...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Ozaki S,Radeke MJ,Anderson DH

    更新日期:2000-02-01 00:00:00

  • Motion perception in glaucoma.

    abstract:PURPOSE:This study was performed to investigate motion perception in patients with glaucoma. METHODS:A random dot motion test was used to measure three aspects of central motion perception: minimum displacement threshold (Dmin), maximum displacement threshold (Dmax), and coherence threshold (signal to noise). Motion p...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Bullimore MA,Wood JM,Swenson K

    更新日期:1993-12-01 00:00:00

  • Lysis of herpes simplex virus (HSV) infected targets. III. Effect of HSV on natural killer activity.

    abstract::Freshly isolated peripheral blood lymphocytes from patients (PBL-P) with recurrent herpetic corneal and skin lesions, and controls (PBL-C) with no recollection of herpetic disease, effectively lysed herpes simplex virus type 1 (HSV-1) infected but not uninfected allogeneic fibroblasts. However, after 48 hr of stimulat...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Hendricks RL,Sugar J

    更新日期:1985-02-01 00:00:00

  • Occludin independently regulates permeability under hydrostatic pressure and cell division in retinal pigment epithelial cells.

    abstract:PURPOSE:The aim of this study was to determine the function of the tight junction protein occludin in the control of permeability, under diffusive and hydrostatic pressures, and its contribution to the control of cell division in retinal pigment epithelium. METHODS:Occludin expression was inhibited in the human retina...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.07-1204

    authors: Phillips BE,Cancel L,Tarbell JM,Antonetti DA

    更新日期:2008-06-01 00:00:00

  • Distribution of R-cognin in late embryonic and post-hatching chicken retina.

    abstract::The histological distribution of R-cognin in chick retinas was determined from embryonic day 8 through 13 wk post-hatching by indirect immunofluorescence using polyclonal anticognin. On embryonic day 8, at a developmental stage without distinct retina layers, most of the cells within the tissue exhibited fluorescence....

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Dobi ET,Troccoli NM,Hausman RE

    更新日期:1986-03-01 00:00:00

  • Effects of aging on 24-hour intraocular pressure measurements in sitting and supine body positions.

    abstract:PURPOSE:To evaluate how aging alters 24-hour measurements of intraocular pressure (IOP) in the sitting and supine body positions. METHODS:Fifteen older volunteers with healthy eyes (ages, 53-71 years) were each housed for 1 day in a sleep laboratory. An 8-hour accustomed sleep period was assigned to each subject. Ever...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.11-8763

    authors: Mansouri K,Weinreb RN,Liu JH

    更新日期:2012-01-10 00:00:00

  • The ringlike structure of macular pigment in age-related maculopathy: results from the Muenster Aging and Retina Study (MARS).

    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

    pub_type: 杂志文章

    doi:10.1167/iovs.11-7610

    authors: Dietzel M,Zeimer M,Heimes B,Pauleikhoff D,Hense HW

    更新日期:2011-10-11 00:00:00

  • Role of connective tissue growth factor in the retinal vasculature during development and ischemia.

    abstract:PURPOSE:To investigate the function of connective tissue growth factor (CTGF), a matricellular protein of the CCN (Cyr61/CTGF/Nov) family, in retinal vasculature during development and ischemia. METHODS:CTGF expression was determined using RT-PCR, immunohistochemistry, and transgenic mice carrying CTGF promoter-driven...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.11-7870

    authors: Pi L,Xia H,Liu J,Shenoy AK,Hauswirth WW,Scott EW

    更新日期:2011-11-07 00:00:00

  • Corneal sensitivity following lacrimal gland excision in the rat.

    abstract:PURPOSE:Dry eye disease (DED) produces ocular pain and irritation, yet a detailed characterization of ocular sensitivity in a preclinical model of DED is lacking. The aim of the present study was to assess nociceptive behaviors in an aqueous tear deficiency model of DED in the rat. METHODS:Spontaneous blinking, cornea...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.15-16717

    authors: Meng ID,Barton ST,Mecum NE,Kurose M

    更新日期:2015-05-01 00:00:00

  • Acute changes in RPE apical morphology after retinal detachment in rabbit. A SEM study.

    abstract::The morphology of the apical surface of rabbit retinal pigment epithelium was studied by scanning electron microscopy from the first minute to several hours after making small nonrhegmatogenous retinal detachments (blebs). From 0 to 5 min, there were only slight changes in the homogeneous, dense mat of filamentous mic...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Immel J,Negi A,Marmor MF

    更新日期:1986-12-01 00:00:00

  • Revisiting Ciliary Muscle Tendons and Their Connections With the Trabecular Meshwork by Two Photon Excitation Microscopic Imaging.

    abstract:PURPOSE:To elucidate the anatomy of the trabecular meshwork (TM) and its connection to ciliary muscle (CM) tendons with two photon excitation microscopic (TPEM) imaging. METHODS:The human aqueous outflow pathway was imaged in an unfixed and nonembeded state by using an inverted TPEM. Laser (Ti:Sapphire) was tuned at 8...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.15-17091

    authors: Park CY,Lee JK,Kahook MY,Schultz JS,Zhang C,Chuck RS

    更新日期:2016-03-01 00:00:00

  • Low-Intensity Exercise in Mice Is Sufficient to Protect Retinal Function During Light-Induced Retinal Degeneration.

    abstract:Purpose:We previously reported that a specific treadmill running exercise regimen protects against light-induced retinal degeneration (LIRD) in mice. We hypothesized that this protective effect varies with running intensity. To test this, mice undergoing LIRD were run at different treadmill speeds and retinal function ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.18-25883

    authors: Mees LM,Coulter MM,Chrenek MA,Motz CT,Landis EG,Boatright JH,Pardue MT

    更新日期:2019-04-01 00:00:00

  • Induction by latanoprost of collagen gel contraction mediated by human tenon fibroblasts: role of intracellular signaling molecules.

    abstract:PURPOSE:The outcome of glaucoma filtration surgery is affected by subconjunctival wound healing. The effects of the antiglaucoma drug latanoprost on the contractility of human Tenon fibroblasts (HTFs) cultured in a three-dimensional collagen gel were investigated. METHODS:HTFs were cultured in a type I collagen gel wi...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.07-0451

    authors: Liu Y,Ko JA,Yanai R,Kimura K,Chikama T,Sagara T,Nishida T

    更新日期:2008-04-01 00:00:00

  • Soluble forms of the high-affinity fibroblast growth factor receptor in human vitreous fluid.

    abstract:PURPOSE:Fibroblast growth factor-binding proteins (FGF-BPs) have been identified recently in blood and other biologic fluids and have been shown to be identical to a truncated form of the high-affinity cell surface FGF receptor. The authors examined the hypothesis that FGF-BPs also are present in human vitreous fluid. ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Hanneken A,Baird A

    更新日期:1995-05-01 00:00:00

  • Mass cells in ocular tissues of normal rats and rats infected with Nippostrongylus brasiliensis.

    abstract::In orbital exenteration specimens from 14 rats, 93% of the mast cells were found in the lids, the limbus, and the conjunctiva, 5% in the orbital tissues, and less than 1% in the globe. The density of mast cells was highest in lid (2843/mm3), limbus (2822/mm3), and orbit (2184/mm3) and lowest in bulbar conjunctiva (794...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Allansmith MR,Baird RS,Kashima K,Bloch KJ

    更新日期:1979-08-01 00:00:00

  • Topical administration of lacritin is a novel therapy for aqueous-deficient dry eye disease.

    abstract:PURPOSE:Lacritin is a tear glycoprotein with prosecretory, prosurvival, and mitogenic properties. We examined lacritin levels in the tears of Sjögren's syndrome (SS) patients and explored the therapeutic potential of topical lacritin for the treatment of keratoconjunctivitis sicca. METHODS:Tears from healthy controls ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.14-13924

    authors: Vijmasi T,Chen FY,Balasubbu S,Gallup M,McKown RL,Laurie GW,McNamara NA

    更新日期:2014-07-17 00:00:00

  • Chemokine receptor expression in peripheral blood monocytes from patients with neovascular age-related macular degeneration.

    abstract:PURPOSE:Chemokine signaling and monocytes/macrophages were implicated in the pathogenesis of AMD. We tested the association between chemokines involved in monocyte recruitment and AMD. METHODS:Immunophenotyping for white blood cell (WBC) populations including CD14++CD16- and CD14+CD16+ monocytes, CD19+, CD3+, and CD16...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.11-9165

    authors: Grunin M,Burstyn-Cohen T,Hagbi-Levi S,Peled A,Chowers I

    更新日期:2012-08-07 00:00:00

  • Different effects of substance P and vasoactive intestinal peptide on the motor function of bovine intraocular muscles.

    abstract::Effects of substance P (SP) and vasoactive intestinal peptide (VIP) on motor function of bovine sphincter, dilator, and ciliary muscles were investigated pharmacologically, with and without field stimulation. SP contracted the sphincter and the maximum response was only about 25% of that in the presence of equimolar d...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Suzuki R,Kobayashi S

    更新日期:1983-12-01 00:00:00

  • Functional and Anatomical Outcomes in Patients With Serous Retinal Detachment in Diabetic Macular Edema Treated With Ranibizumab.

    abstract:Purpose:To assess the effect of serous retinal detachment (SRD) on functional and anatomical outcomes in ranibizumab-treated patients with diabetic macular edema (DME). Methods:All consecutive ranibizumab-treated patients with SRD were included in this retrospective study. For each patient with SRD, a patient without ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.16-20855

    authors: Giocanti-Aurégan A,Hrarat L,Qu LM,Sarda V,Boubaya M,Levy V,Chaine G,Fajnkuchen F

    更新日期:2017-02-01 00:00:00

  • Morphological and functional rescue in RCS rats after RPE cell line transplantation at a later stage of degeneration.

    abstract:PURPOSE:It is well documented that grafting of cells in the subretinal space of Royal College of Surgeons (RCS) rats limits deterioration of vision and loss of photoreceptors if performed early in postnatal life. What is unclear is whether cells introduced later, when photoreceptor degeneration is already advanced, can...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.07-0992

    authors: Wang S,Lu B,Girman S,Holmes T,Bischoff N,Lund RD

    更新日期:2008-01-01 00:00:00

  • Human corneal stromal stem cells exhibit survival capacity following isolation from stored organ-culture corneas.

    abstract:PURPOSE:To assess the suitability of human donor corneas maintained in long-term organ culture for the isolation and expansion of viable and functional corneal stromal stem cells (CSSCs). These cells display properties similar to mesenchymal stem cells and demonstrate the ability to reproduce an organized matrix in vit...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.14-14448

    authors: Kureshi AK,Funderburgh JL,Daniels JT

    更新日期:2014-10-21 00:00:00

  • Mutations in the gene coding for the pre-mRNA splicing factor, PRPF31, in patients with autosomal dominant retinitis pigmentosa.

    abstract:PURPOSE:Retinitis pigmentosa is a clinically and genetically heterogeneous disorder. It is characterized by progressive degeneration of the peripheral retina, leading to night blindness and loss of the peripheral visual field. PRPF31 is one of four pre-mRNA splicing factors identified as causing autosomal dominant reti...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.06-0963

    authors: Waseem NH,Vaclavik V,Webster A,Jenkins SA,Bird AC,Bhattacharya SS

    更新日期:2007-03-01 00:00:00

  • Expression of complement component 3 (C3) from an adenovirus leads to pathology in the murine retina.

    abstract:PURPOSE:Activation of complement has been implicated as one of the major causes of age-related macular degeneration (AMD). Evidence is accumulating for a role of complement in other retinal diseases, such as diabetic retinopathy and proliferative vitreoretinopathy. Because of the paucity of animal models that directly ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.10-6002

    authors: Cashman SM,Desai A,Ramo K,Kumar-Singh R

    更新日期:2011-05-18 00:00:00

  • Development of VEP Vernier acuity and grating acuity in human infants.

    abstract:PURPOSE:To compare the developmental sequences of two basic measures of pattern vision, Vernier acuity and grating acuity, using steady state visual-evoked potentials (VEPs) and an analysis designed to isolate pattern-specific responses from those due to motion in the Vernier stimulus. METHODS:The authors recorded VEP...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Skoczenski AM,Norcia AM

    更新日期:1999-09-01 00:00:00

  • Current steering in retinal stimulation via a quasimonopolar stimulation paradigm.

    abstract:PURPOSE:Research to restore some degree of vision to patients suffering from retinal degeneration is becoming increasingly more promising. Several groups have chosen electrical stimulation of the remaining network of a degenerate retina as a means to generate discrete light percepts (phosphenes). Approaches vary signif...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.13-11653

    authors: Matteucci PB,Chen SC,Tsai D,Dodds CW,Dokos S,Morley JW,Lovell NH,Suaning GJ

    更新日期:2013-06-21 00:00:00

  • Some mammalian retinae lack FMRF-amide-like immunoreactive efferents.

    abstract::The retinae of a monkey, cat, rat and mouse were examined for FMRF-amide immunoreactivity, a marker for efferent fibers in the retinae of lower vertebrates. No FMRF-amide immunoreactive retinal fibers were found despite their presence in the rat CNS. Therefore, we conclude that efferent fibers, if present in mammalian...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Rusoff AC,Hendrickson AE

    更新日期:1989-05-01 00:00:00

  • Assessment of the Retina of Plp-α-Syn Mice as a Model for Studying Synuclein-Dependent Diseases.

    abstract:Purpose:Synucleinopathies such as multiple system atrophy (MSA) and Parkinson's disease are associated with a variety of visual symptoms. Functional and morphological retinal aberrations are therefore supposed to be valuable biomarkers for these neurodegenerative diseases. This study examined the retinal morphology and...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.61.6.12

    authors: Kaehler K,Seitter H,Sandbichler AM,Tschugg B,Obermair GJ,Stefanova N,Koschak A

    更新日期:2020-06-03 00:00:00

  • Influence of specific regions in Lp82 calpain on protein stability, activity, and localization within lens.

    abstract:PURPOSE:To determine the influence of specific regions within Lp82 calpain on protein stability, enzymatic activity, and localization within lens and to test the influence of an Lp82 knockout mouse on normal maturational proteolysis in lens. METHODS:DNA constructs for Lp82 and Lp82-related proteins were subcloned into...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Ma H,Shih M,Fukiage C,Azuma M,Duncan MK,Reed NA,Richard I,Beckmann JS,Shearer TR

    更新日期:2000-12-01 00:00:00

  • Retinal Structure and Function in Perinatally HIV-Infected and cART-Treated Children: A Matched Case-Control Study.

    abstract:PURPOSE:Subtle structural and functional neuroretinal changes have been described in human immunodeficiency virus (HIV)-infected adults without retinitis treated with combination antiretroviral therapy (cART). However, studies on this subject in HIV-infected children are scarce. This study aimed to assess the presence ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.15-16855

    authors: Demirkaya N,Cohen S,Wit FW,Abramoff MD,Schlingemann RO,Kuijpers TW,Reiss P,Pajkrt D,Verbraak FD

    更新日期:2015-06-01 00:00:00

  • The Effect of PKCα on the Light Response of Rod Bipolar Cells in the Mouse Retina.

    abstract:PURPOSE:Protein kinase C α (PKCα) is abundantly expressed in rod bipolar cells (RBCs) in the retina, yet the physiological function of PKCα in these cells is not well understood. To elucidate the role of PKCα in visual processing in the eye, we examined the effect of genetic deletion of PKCα on the ERG and on RBC light...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.15-16622

    authors: Xiong WH,Pang JJ,Pennesi ME,Duvoisin RM,Wu SM,Morgans CW

    更新日期:2015-07-01 00:00:00