Derivation of neurons with functional properties from adult limbal epithelium: implications in autologous cell therapy for photoreceptor degeneration.
The limbal epithelium (LE), a circular and narrow epithelium that separates cornea from conjunctiva, harbors stem cells/progenitors in its basal layer that regenerate cornea. We have previously demonstrated that cells in the basal LE, when removed from their niche and cultured in reduced bond morphogenetic protein signaling, acquire properties of neural progenitors. Here, we demonstrate that LE-derived neural progenitors generate neurons with functional properties and can be directly differentiated along rod photoreceptor lineage in vitro and in vivo. These observations posit the LE as a potential source of neural progenitors for autologous cell therapy to treat photoreceptor degeneration in age-related macular degeneration and retinitis pigmentosa.
Zhao
Xing
X
Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Das
Ani V
AV
Bhattacharya
Sumitra
S
Thoreson
Wallace B
WB
Sierra
Jorge Rodriguez
JR
Mallya
Kavita B
KB
Ahmad
Iqbal
I
D000367:Age Factors; D000818:Animals; D002478:Cells, Cultured; D019573:Epithelium, Corneal / Q000166:cytology / Q000502:physiology* / Q000637:transplantation*; D051379:Mice; D009474:Neurons / Q000166:cytology / Q000502:physiology* / Q000637:transplantation*; D020419:Photoreceptor Cells, Vertebrate / Q000166:cytology / Q000473:pathology / Q000502:physiology*; D051381:Rats; D017207:Rats, Sprague-Dawley; D012162:Retinal Degeneration / Q000473:pathology / Q000601:surgery*; D033581:Stem Cell Transplantation / Q000379:methods; D014182:Transplantation, Autologous / Q000379:methods