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The in vitro and in vivo behaviour of retinal pigment epithelial cells cultured on ultrathin collagen membranes

Paper ID Volume ID Publish Year Pages File Format Full-Text
10212 672 2009 8 PDF Available
Title
The in vitro and in vivo behaviour of retinal pigment epithelial cells cultured on ultrathin collagen membranes
Abstract

The transplantation of pigment epithelial cells as a therapeutic modality for retinal degeneration requires that the transplanted cells form a monolayer in the subretinal space that will establish communication with photoreceptors. Since previous studies have shown that transplanted cells in suspension do not form a monolayer, it will be necessary to transplant preformed pigment epithelial cell monolayers at the location of the exposed photoreceptors. To establish cell monolayers, retinal pigment epithelial (RPE) cells were cultured on ultrathin collagen membranes. Cells were examined for morphology, for characteristics of differentiation and viability. Membrane degradation and long-term biocompatibility in vivo were assessed following subconjunctival and subretinal implantation in rabbits. These studies have shown that RPE cells adhere, proliferate, form monolayers, and acquire differentiated properties on a collagen membrane that has features similar to Bruch's membrane. Membranes transplanted subconjunctivally and subretinally exhibit excellent biocompatibility without any evidence of inflammation or rejection. RPE cells cultured on collagen membranes acquire differentiated characteristics similar to those of RPE cells in vivo and form complete monolayers that are amenable to be transplanted to the subretinal space. The collagen membranes are non-toxic and do not elicit any rejection or inflammatory response when implanted subconjunctivally or subretinally in rabbits.

Keywords
Ophthalmology; Biocompatibility; Biodegradation; Cell viability; Collagen; Transplantation
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The in vitro and in vivo behaviour of retinal pigment epithelial cells cultured on ultrathin collagen membranes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 30, Issue 3, January 2009, Pages 287–294
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us