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Journal Article
Research Support, Non-U.S. Gov't
Cellular Response of Limbal Stem Cells on Polycaprolactone Nanofibrous Scaffolds for Ocular Epithelial Regeneration.
Current Eye Research 2016
PURPOSE: The aim of this study was to develop nanofibrous polycaprolactone (PCL) substrate for limbal stem cell (LSC) expansion that can serve as a potential alternative substrate to replace human amniotic membrane (AM).
MATERIALS AND METHODS: The human limbus stem cell was used to evaluate the biocompatibility of substrates (nanofibrous scaffold and, human AM) based on their phenotypic profile, viability, proliferation and attachment ability.
RESULTS: Biocompatibility results indicated that the all substrates were highly biocompatible, as LSCs could favorably attach and proliferate on the nanofibrous surface. Microscopic figures showed that the human LSCs were firmly anchored to the substrates and were able to retain a normal corneal stem cell phenotype. Microscopic analyses illustrated that cells infiltrated the nanofibers and successfully formed a three-dimensional corneal epithelium, which was viable for two weeks. Immunocytochemistry (ICC) and real time-PCR results revealed no change in the expression profile of LECs grown on nanofibrous substrate when compared to those grown on human AM.
CONCLUSION: In addition, electrospun nanofibrous PCL substrate provides not only a milieu supporting LSCs expansion, but also serve as a useful alternative carrier for ocular surface tissue engineering and could be used as an alternative substrate to AM.
MATERIALS AND METHODS: The human limbus stem cell was used to evaluate the biocompatibility of substrates (nanofibrous scaffold and, human AM) based on their phenotypic profile, viability, proliferation and attachment ability.
RESULTS: Biocompatibility results indicated that the all substrates were highly biocompatible, as LSCs could favorably attach and proliferate on the nanofibrous surface. Microscopic figures showed that the human LSCs were firmly anchored to the substrates and were able to retain a normal corneal stem cell phenotype. Microscopic analyses illustrated that cells infiltrated the nanofibers and successfully formed a three-dimensional corneal epithelium, which was viable for two weeks. Immunocytochemistry (ICC) and real time-PCR results revealed no change in the expression profile of LECs grown on nanofibrous substrate when compared to those grown on human AM.
CONCLUSION: In addition, electrospun nanofibrous PCL substrate provides not only a milieu supporting LSCs expansion, but also serve as a useful alternative carrier for ocular surface tissue engineering and could be used as an alternative substrate to AM.
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