دورية أكاديمية
أعرض في EDS

Cell-independent matrix configuration in early corneal development.

التفاصيل البيبلوغرافية
العنوان: Cell-independent matrix configuration in early corneal development.
المؤلفون: Young RD; Structural Biophysics Group, School of Optometry & Vision Sciences, Cardiff University, Maindy Road, Cathays, Cardiff, CF24 4HQ, Wales, UK. Electronic address: youngrd@cardiff.ac.uk., Knupp C; Structural Biophysics Group, School of Optometry & Vision Sciences, Cardiff University, Maindy Road, Cathays, Cardiff, CF24 4HQ, Wales, UK. Electronic address: knuppC@cardiff.ac.uk., Koudouna E; Structural Biophysics Group, School of Optometry & Vision Sciences, Cardiff University, Maindy Road, Cathays, Cardiff, CF24 4HQ, Wales, UK. Electronic address: koudounaE@cardiff.ac.uk., Ralphs JR; School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX, Wales, UK. Electronic address: ralphs@cardiff.ac.uk., Ma Y; Department of Biomedical Engineering, Ohio State University, 1080 Carmack Road, Columbus, OH 43210, USA. Electronic address: Ma.1634@osu.edu., Lwigale PY; Department of Biosciences, Rice University, 6100 Main Street, Houston, TX, 77005, USA. Electronic address: pl7@rice.edu., Jester JV; Departments of Ophthalmology and Biomedical Engineering, University of California, 843 Health Sciences Road, Irvine, CA, 92697, USA. Electronic address: jjester@uci.edu., Quantock AJ; Structural Biophysics Group, School of Optometry & Vision Sciences, Cardiff University, Maindy Road, Cathays, Cardiff, CF24 4HQ, Wales, UK. Electronic address: QuantockAJ@cf.ac.uk.
المصدر: Experimental eye research [Exp Eye Res] 2019 Oct; Vol. 187, pp. 107772. Date of Electronic Publication: 2019 Aug 21.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Academic Press Country of Publication: England NLM ID: 0370707 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1096-0007 (Electronic) Linking ISSN: 00144835 NLM ISO Abbreviation: Exp Eye Res Subsets: MEDLINE
أسماء مطبوعة: Publication: London : Academic Press
Original Publication: London.
مواضيع طبية MeSH: Cornea/*embryology , Extracellular Matrix/*ultrastructure, Animals ; Chick Embryo ; Chondroitin Sulfates/metabolism ; Collagen Type I/metabolism ; Collagen Type II/metabolism ; Cornea/metabolism ; Cornea/ultrastructure ; Corneal Stroma/embryology ; Corneal Stroma/metabolism ; Corneal Stroma/ultrastructure ; Dermatan Sulfate/metabolism ; Extracellular Matrix/metabolism ; Fourier Analysis ; Imaging, Three-Dimensional ; Microscopy, Electron, Scanning ; Microscopy, Electron, Transmission ; Morphogenesis/physiology
مستخلص: Mechanisms controlling the spatial configuration of the remarkably ordered collagen-rich extracellular matrix of the transparent cornea remain incompletely understood. We previously described the assembly of the emerging corneal matrix in the mid and late stages of embryogenesis and concluded that collagen fibril organisation was driven by cell-directed mechanisms. Here, the early stages of corneal morphogenesis were examined by serial block face scanning electron microscopy of embryonic chick corneas starting at embryonic day three (E3), followed by a Fourier transform analysis of three-dimensional datasets and theoretical considerations of factors that influence matrix formation. Eyes developing normally and eyes that had the lens surgically removed at E3 were studied. Uniformly thin collagen fibrils are deposited by surface ectoderm-derived corneal epithelium in the primary stroma of the developing chick cornea and form an acellular matrix with a striking micro-lamellar orthogonal arrangement. Fourier transform analysis supported this observation and indicated that adjacent micro-lamellae display a clockwise rotation of fibril orientation, depth-wise below the epithelium. We present a model which attempts to explain how, in the absence of cells in the primary stroma, collagen organisation might be influenced by cell-independent, intrinsic mechanisms, such as fibril axial charge derived from associated proteoglycans. On a supra-lamellar scale, fine cords of non-collagenous filamentous matrix were detected over large tissue volumes. These extend into the developing cornea from the epithelial basal lamina and appear to associate with the neural crest cells that migrate inwardly to form, first the corneal endothelium and then keratocytes which synthesise the mature, secondary corneal stroma. In a small number of experimental specimens, matrix cords were present even when periocular neural crest cell migration and corneal morphogenesis had been perturbed following removal of the lens at E3.
(Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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معلومات مُعتمدة: MR/K000837/1 United Kingdom MRC_ Medical Research Council
فهرسة مساهمة: Keywords: Collagen; Cornea; Development; Serial block face scanning electron microscopy
المشرفين على المادة: 0 (Collagen Type I)
0 (Collagen Type II)
24967-94-0 (Dermatan Sulfate)
9007-28-7 (Chondroitin Sulfates)
تواريخ الأحداث: Date Created: 20190825 Date Completed: 20200228 Latest Revision: 20210110
رمز التحديث: 20240628
مُعرف محوري في PubMed: PMC6892249
DOI: 10.1016/j.exer.2019.107772
PMID: 31445001
قاعدة البيانات: MEDLINE
الوصف
تدمد:1096-0007
DOI:10.1016/j.exer.2019.107772