title: Differentiation and molecular profiling of human embryonic stem cell-derived corneal epithelial cells.
abstract: It has been suggested that the isolation of scalable populations of limbal stem cells may lead to radical changes in ocular therapy. In particular, the derivation and transplantation of corneal stem cells from these populations may result in therapies providing clinical normality of the diseased or damaged cornea. Although feasible in theory, the lack of donor material in sufficient quantity and quality currently limits such a strategy. A potential scalable source of corneal cells could be derived from pluripotent stem cells (PSCs). We developed an in vitro and serum-free corneal differentiation model which displays significant promise. Our stepwise differentiation model was designed with reference to development and gave rise to cells which displayed similarities to epithelial progenitor cells which can be specified to cells displaying a corneal epithelial phenotype. We believe our approach is novel, provides a robust model of human development and in the future, may facilitate the generation of corneal epithelial cells that are suitable for clinical use. Additionally, we demonstrate that following continued cell culture, stem cell-derived corneal epithelial cells undergo transdifferentiation and exhibit squamous metaplasia and therefore, also offer an in vitro model of disease.
authors.affiliation: Tissue Injury and Repair Group, MRC Centre for Regenerative Medicine, Chancellor's Building, University of Edinburgh, Edinburgh EH16 4SB, Scotland, UK.
authors.forename: J
authors.initials: J
authors.lastname: Brzeszczynska
authors.affiliation: SNBTS Cellular Therapy Group, MRC Centre for Regenerative Medicine, Chancellor's Building, University of Edinburgh, Edinburgh EH16 4SB, Scotland, UK.
authors.forename: K
authors.initials: K
authors.lastname: Samuel
authors.affiliation: Pluripotent Stem Cell Hepatocyte Development Group, MRC Centre for Regenerative Medicine, Chancellor's Building, University of Edinburgh, Edinburgh EH16 4SB, Scotland, UK.
authors.forename: S
authors.initials: S
authors.lastname: Greenhough
authors.affiliation: Tennent Institute of Ophthalmology, Gartnavel General Hospital, Glasgow G12 0YN, Scotland, UK.
authors.forename: K
authors.initials: K
authors.lastname: Ramaesh
authors.affiliation: Department of Clinical and Surgical Sciences, Ophthalmology Section, Princess Alexandra Eye Pavilion, Royal Infirmary of Edinburgh, Edinburgh EH3 9HA, Scotland, UK.
authors.forename: B
authors.initials: B
authors.lastname: Dhillon
authors.affiliation: Pluripotent Stem Cell Hepatocyte Development Group, MRC Centre for Regenerative Medicine, Chancellor's Building, University of Edinburgh, Edinburgh EH16 4SB, Scotland, UK.
authors.forename: D C
authors.initials: DC
authors.lastname: Hay
authors.affiliation: Tissue Injury and Repair Group, MRC Centre for Regenerative Medicine, Chancellor's Building, University of Edinburgh, Edinburgh EH16 4SB, Scotland, UK.
authors.forename: J A
authors.initials: JA
authors.lastname: Ross
mesh_terms: D054338:Cell Transdifferentiation / Q000235:genetics / Q000502:physiology*; D002478:Cells, Cultured; D053595:Embryonic Stem Cells / Q000166:cytology* / Q000378:metabolism*; D004847:Epithelial Cells / Q000166:cytology* / Q000378:metabolism*; D006801:Humans; D016850:Limbus Corneae / Q000166:cytology*