Abstract:
PURPOSE:To investigate epithelial cell adhesion and proliferation on a newly developed elastin-like polymer (ELP) that mimics the functional characteristics of extracellular matrices. MATERIALS AND METHODS:A genetically engineered ELP with cell attachment sequences was adsorbed onto glass coverslips as 1, 2, or 3 molecular films. Conjunctival epithelial cells from a human cell line and human skin fibroblast cells (as controls) were plated onto coverslips with three different substrata: plain glass, Thermanox, and ELP-coated. Cells (10(4)) were plated after EDTA- or trypsin-based detachment. To test adhesion, epithelial and fibroblast cells were incubated for 4 hr, stained with hematoxylin, and counted. To study proliferation, Ki-67-positive epithelial cells were counted after 1, 3, and 5 days in culture. Immunostaining for conjunctival and adhesion markers was performed. RESULTS:Epithelial cell, but not fibroblast, adhesion on ELP was significantly enhanced compared to that of control substrata. Epithelial cells detached with EDTA alone adhered significantly better than those detached with trypsin. By day 5, epithelial cell proliferation on ELP was significantly greater than that on plain glass. Epithelial cells grown on ELP expressed conjunctival and adhesion markers. CONCLUSIONS:The recombinant ELP resembling the ocular surface extracellular matrix was a suitable substratum to sustain epithelial cell attachment and growth. This type of polymer may be suitable for tissue engineering to restore vision by reconstructing the ocular surface.
journal_name
Curr Eye Resjournal_title
Current eye researchauthors
Martínez-Osorio H,Juárez-Campo M,Diebold Y,Girotti A,Alonso M,Arias FJ,Rodríguez-Cabello JC,García-Vázquez C,Calonge Mdoi
10.1080/02713680802542053subject
Has Abstractpub_date
2009-01-01 00:00:00pages
48-56issue
1eissn
0271-3683issn
1460-2202pii
908178657journal_volume
34pub_type
杂志文章abstract:PURPOSE:To investigate the effects of pyrrolidine dithiocarbamate (PDTC), a nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) inhibitor, on the expression of matrix metalloproteinases (MMP) and MMP-mediated apoptosis in retinal ganglion cells (RGCs) following the transection of the optic nerve (ON) in ...
journal_title:Current eye research
pub_type: 杂志文章
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journal_title:Current eye research
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doi:10.1080/02713683.2016.1196704
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journal_title:Current eye research
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doi:10.3109/02713688608996369
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journal_title:Current eye research
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journal_title:Current eye research
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journal_title:Current eye research
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journal_title:Current eye research
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journal_title:Current eye research
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journal_title:Current eye research
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journal_title:Current eye research
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journal_title:Current eye research
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