Optimization of Corneal Epithelial Progenitor Cell Growth on Bombyx mori Silk Fibroin Membranes

Scaffolds prepared from silk fibroin derived from cocoons of the domesticated silkworm moth Bombyx mori have demonstrated potential to support the attachment and growth of human limbal epithelial (HLE) cells in vitro. In this study, we attempted to further optimize protocols to promote the expansion...

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Main Authors: Thomas A. Hogerheyde, Shuko Suzuki, Jennifer Walshe, Laura J. Bray, Sally A. Stephenson, Damien G. Harkin, Neil A. Richardson
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Stem Cells International
Online Access:http://dx.doi.org/10.1155/2016/8310127
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author Thomas A. Hogerheyde
Shuko Suzuki
Jennifer Walshe
Laura J. Bray
Sally A. Stephenson
Damien G. Harkin
Neil A. Richardson
author_facet Thomas A. Hogerheyde
Shuko Suzuki
Jennifer Walshe
Laura J. Bray
Sally A. Stephenson
Damien G. Harkin
Neil A. Richardson
author_sort Thomas A. Hogerheyde
collection DOAJ
description Scaffolds prepared from silk fibroin derived from cocoons of the domesticated silkworm moth Bombyx mori have demonstrated potential to support the attachment and growth of human limbal epithelial (HLE) cells in vitro. In this study, we attempted to further optimize protocols to promote the expansion of HLE cells on B. mori silk fibroin- (BMSF-) based scaffolds. BMSF films were initially coated with different extracellular matrix proteins and then analysed for their impact on corneal epithelial cell adhesion, cell morphology, and culture confluency. Results showed that collagen I, collagen III, and collagen IV consistently improved HCE-T cell adherence, promoted an elongated cell morphology, and increased culture confluency. By contrast, ECM coating had no significant effect on the performance of primary HLE cells cultured on BMSF films. In the second part of this study, primary HLE cells were grown on BMSF films in the presence of medium (SHEM) supplemented with keratinocyte growth factor (KGF) and the Rho kinase inhibitor, Y-27632. The results demonstrated that SHEM medium supplemented with KGF and Y-27632 dramatically increased expression of corneal differentiation markers, keratin 3 and keratin 12, whereas expression of the progenitor marker, p63, did not appear to be significantly influenced by the choice of culture medium.
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spelling doaj-art-a24549a5d2cb45d1b4713f70c9b21d392025-08-20T03:38:44ZengWileyStem Cells International1687-966X1687-96782016-01-01201610.1155/2016/83101278310127Optimization of Corneal Epithelial Progenitor Cell Growth on Bombyx mori Silk Fibroin MembranesThomas A. Hogerheyde0Shuko Suzuki1Jennifer Walshe2Laura J. Bray3Sally A. Stephenson4Damien G. Harkin5Neil A. Richardson6School of Biomedical Sciences, Faculty of Health and Institute of Health & Biomedical Innovation, Queensland University of Technology, 2 George Street, Brisbane, QLD 4001, AustraliaQueensland Eye Institute, 140 Melbourne Street, South Brisbane, QLD 4101, AustraliaQueensland Eye Institute, 140 Melbourne Street, South Brisbane, QLD 4101, AustraliaSchool of Biomedical Sciences, Faculty of Health and Institute of Health & Biomedical Innovation, Queensland University of Technology, 2 George Street, Brisbane, QLD 4001, AustraliaSchool of Biomedical Sciences, Faculty of Health and Institute of Health & Biomedical Innovation, Queensland University of Technology, 2 George Street, Brisbane, QLD 4001, AustraliaSchool of Biomedical Sciences, Faculty of Health and Institute of Health & Biomedical Innovation, Queensland University of Technology, 2 George Street, Brisbane, QLD 4001, AustraliaSchool of Biomedical Sciences, Faculty of Health and Institute of Health & Biomedical Innovation, Queensland University of Technology, 2 George Street, Brisbane, QLD 4001, AustraliaScaffolds prepared from silk fibroin derived from cocoons of the domesticated silkworm moth Bombyx mori have demonstrated potential to support the attachment and growth of human limbal epithelial (HLE) cells in vitro. In this study, we attempted to further optimize protocols to promote the expansion of HLE cells on B. mori silk fibroin- (BMSF-) based scaffolds. BMSF films were initially coated with different extracellular matrix proteins and then analysed for their impact on corneal epithelial cell adhesion, cell morphology, and culture confluency. Results showed that collagen I, collagen III, and collagen IV consistently improved HCE-T cell adherence, promoted an elongated cell morphology, and increased culture confluency. By contrast, ECM coating had no significant effect on the performance of primary HLE cells cultured on BMSF films. In the second part of this study, primary HLE cells were grown on BMSF films in the presence of medium (SHEM) supplemented with keratinocyte growth factor (KGF) and the Rho kinase inhibitor, Y-27632. The results demonstrated that SHEM medium supplemented with KGF and Y-27632 dramatically increased expression of corneal differentiation markers, keratin 3 and keratin 12, whereas expression of the progenitor marker, p63, did not appear to be significantly influenced by the choice of culture medium.http://dx.doi.org/10.1155/2016/8310127
spellingShingle Thomas A. Hogerheyde
Shuko Suzuki
Jennifer Walshe
Laura J. Bray
Sally A. Stephenson
Damien G. Harkin
Neil A. Richardson
Optimization of Corneal Epithelial Progenitor Cell Growth on Bombyx mori Silk Fibroin Membranes
Stem Cells International
title Optimization of Corneal Epithelial Progenitor Cell Growth on Bombyx mori Silk Fibroin Membranes
title_full Optimization of Corneal Epithelial Progenitor Cell Growth on Bombyx mori Silk Fibroin Membranes
title_fullStr Optimization of Corneal Epithelial Progenitor Cell Growth on Bombyx mori Silk Fibroin Membranes
title_full_unstemmed Optimization of Corneal Epithelial Progenitor Cell Growth on Bombyx mori Silk Fibroin Membranes
title_short Optimization of Corneal Epithelial Progenitor Cell Growth on Bombyx mori Silk Fibroin Membranes
title_sort optimization of corneal epithelial progenitor cell growth on bombyx mori silk fibroin membranes
url http://dx.doi.org/10.1155/2016/8310127
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